000
WTNT31 KNHC 211441
TCPAT1
BULLETIN
HURRICANE IGOR ADVISORY NUMBER 54
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010
1100 AM AST TUE SEP 21 2010
...IGOR PASSING VERY NEAR CAPE RACE NEWFOUNDLAND...ALMOST FULLY
EXTRATROPICAL...
SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...46.2N 52.8W
ABOUT 35 MI...60 KM SSE OF CAPE RACE NEWFOUNDLAND
MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/HR
PRESENT MOVEMENT...NE OR 35 DEGREES AT 46 MPH...74 KM/HR
MINIMUM CENTRAL PRESSURE...952 MB...28.11 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A HURRICANE WATCH IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM STONES COVE NORTHWARD AND EASTWARD
TO FOGO ISLAND
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM BURGEO NORTHWARD AND EASTWARD
TO TRITON
* THE ISLANDS OF ST-PIERRE AND MIQUELON
A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA WITHIN...IN THIS CASE WITHIN THE NEXT 6 TO
12 HOURS.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL
WEATHER SERVICE FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO
YOUR AREA OUTSIDE THE UNITED STATES...PLEASE MONITOR PRODUCTS
ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 1100 AM AST...1500 UTC...THE CENTER OF HURRICANE IGOR WAS LOCATED
NEAR LATITUDE 46.2 NORTH...LONGITUDE 52.8 WEST. IGOR IS MOVING
RAPIDLY TOWARD THE NORTHEAST NEAR 46 MPH...74 KM/HR. A TURN TOWARD
THE NORTH-NORTHEAST AND NORTH WITH A DECREASE IN FORWARD SPEED IS
EXPECTED TONIGHT AND EARLY WEDNESDAY. THE EXTRATROPICAL LOW IS
THEN EXPECTED TO TURN TOWARD THE NORTH-NORTHWEST AND NORTHWEST WITH
AN ADDITIONAL DECREASE IN FORWARD SPEED WEDNESDAY NIGHT AND EARLY
THURSDAY. ON THIS TRACK...THE CENTER OF IGOR WILL CONTINUE MOVING
VERY CLOSE TO THE SOUTHEASTERN TIP OF NEWFOUNDLAND TODAY.
MAXIMUM SUSTAINED WINDS REAMIN NEAR 75 MPH...120 KM/HR...WITH HIGHER
GUSTS. IGOR IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. SOME STRENGTHENING IS FORECAST...AND IGOR IS
LIKELY TO BECOME AN INTENSE EXTRATROPICAL CYCLONE LATER TODAY.
THE WIND FIELD ASSOCIATED WITH IGOR CONTINUES TO EXPAND. HURRICANE
FORCE WINDS EXTEND OUTWARD UP TO 85 MILES...140 KM...FROM THE
CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 460
MILES...740 KM.
ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON LAND AND BUOY
OBSERVATIONS NEAR SOUTHEASTERN NEWFOUNDLAND IS 952 MB...28.11
INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...WINDS OF TROPICAL-STORM-FORCE/GALE-FORCE ARE EXPECTED WITHIN
THE TROPICAL STORM WARNING AREA TODAY. WINDS OF HURRICANE FORCE
ARE POSSIBLE IN THE HURRICANE WATCH AREA.
RAINFALL...THE HEAVY RAINFALL THREAT ASSOCIATED WITH IGOR WILL BE
COMING TO AN END ACROSS NEWFOUNDLAND THIS AFTERNOON AS THE STORM
MOVES RAPIDLY NORTHEASTWARD. ADDITIONAL RAINFALL ACCUMULATIONS OF
1 TO 3 INCHES ARE POSSIBLE OVER EASTERN NEWFOUNDLAND...WITH STORM
TOTAL ACCUMULATIONS OF 4 TO 8 INCHES POSSIBLE.
SURF...LARGE SWELLS WILL CONTINUE TO AFFECT THE EAST COAST OF THE
UNITED STATES THROUGH TODAY AND THE SOUTH-FACING COASTLINES OF
NOVA SCOTIA AND NEWFOUNDLAND FOR THE NEXT FEW DAYS. SWELLS WILL BE
SLOW TO SUBSIDE IN PUERTO RICO...THE VIRGIN ISLANDS...HISPANIOLA...
AND PORTIONS OF THE BAHAMAS DURING THE NEXT COUPLE OF DAYS. THESE
SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENTS.
PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE FOR
ADDITIONAL INFORMATION.
NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...200 PM AST.
NEXT COMPLETE ADVISORY...500 PM AST.
$$
FORECASTER BERG/STEWART
000
WTNT41 KNHC 211445
TCDAT1
HURRICANE IGOR DISCUSSION NUMBER 54
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010
1100 AM AST TUE SEP 21 2010
IGOR IS VERY CLOSE TO LOSING ALL ITS TROPICAL CHARACTERISTICS AND
WILL LIKELY BECOME FULLY EXTRATROPICAL BY THIS AFTERNOON. THE
INITIAL INTENSITY IS BEING HELD AT 65 KT...ALTHOUGH IT IS POSSIBLE
THAT THE CYCLONE HAS STRENGTHENED OVER THE PAST FEW HOURS. ASCAT
DATA SHOULD BE RECEIVED FROM NEAR THE HURRICANE SOON...AND A
RE-ASSESSMENT OF THE INTENSITY WILL BE MADE AT THAT TIME. IGOR
COULD STILL GAIN SOME STRENGTH DURING THE NEXT 12-24 HOURS AS IT
MOVES NORTHWARD PAST NEWFOUNDLAND BUT THEN ALL THE MODELS SHOW
GRADUAL WEAKENING AS IT MOVES NEAR GREENLAND. THE OFFICIAL
INTENSITY FORECAST IS A BLEND OF THE MODEL GUIDANCE...AND GUIDANCE
PROVIDED BY THE NOAA OCEAN PREDICTION CENTER.
IGOR IS MOVING RAPIDLY NORTHEASTWARD AT 40 KT. MODEL GUIDANCE IS IN
GOOD AGREEMENT THAT IGOR WILL BE TURNING NORTHWARD DURING THE NEXT
24 HOURS AS IT SWINGS AROUND NEWFOUNDLAND AND MOVES THROUGH THE
DAVIS STRAITS. THE EXTRATROPICAL CYCLONE IS EXPECTED TO SLOW DOWN
MARKEDLY FROM 36-96 HOURS AS IT INTERACTS AND POSSIBLY MERGES WITH
ANOTHER AREA OF LOW PRESSURE OFF THE NORTHEASTERN COAST OF QUEBEC.
THE OFFICIAL FORECAST IS JUST A LITTLE FASTER THAN THE PREVIOUS ONE
AND REMAINS RELATIVELY NEAR THE MODEL CONSENSUS TVCN.
FORECAST POSITIONS AND MAX WINDS
INITIAL 21/1500Z 46.2N 52.8W 65 KT
12HR VT 22/0000Z 50.2N 49.4W 70 KT...POST-TROP/EXTRATROP
24HR VT 22/1200Z 55.3N 48.5W 70 KT...POST-TROP/EXTRATROP
36HR VT 23/0000Z 59.8N 51.6W 65 KT...POST-TROP/EXTRATROP
48HR VT 23/1200Z 62.7N 57.8W 50 KT...POST-TROP/EXTRATROP
72HR VT 24/1200Z 63.5N 61.0W 40 KT...POST-TROP/EXTRATROP
96HR VT 25/1200Z 62.0N 60.5W 40 KT...POST-TROP/EXTRATROP
120HR VT 26/1200Z...DISSIPATED
$$
FORECASTER BERG/STEWART
ATL: IGOR - Advisories
Moderator: S2k Moderators
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Re: ATL: IGOR - Advisories
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Re: ATL: IGOR - Advisories
BULLETIN
HURRICANE IGOR INTERMEDIATE ADVISORY NUMBER 54A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010
200 PM AST TUE SEP 21 2010
...IGOR PRODUCING GUSTS TO HURRICANE FORCE OVER PORTIONS OF
NEWFOUNDLAND...
SUMMARY OF 200 PM AST...1800 UTC...INFORMATION
----------------------------------------------
LOCATION...48.5N 52.0W
ABOUT 75 MI...120 KM NNE OF ST. JOHNS NEWFOUNDLAND
MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/HR
PRESENT MOVEMENT...NE OR 35 DEGREES AT 46 MPH...74 KM/HR
MINIMUM CENTRAL PRESSURE...950 MB...28.05 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A HURRICANE WATCH IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM STONES COVE NORTHWARD AND EASTWARD
TO FOGO ISLAND
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM BURGEO NORTHWARD AND EASTWARD
TO TRITON
* THE ISLANDS OF ST-PIERRE AND MIQUELON
A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA WITHIN...IN THIS CASE WITHIN THE NEXT 6 TO
12 HOURS.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL
WEATHER SERVICE FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO
YOUR AREA OUTSIDE THE UNITED STATES...PLEASE MONITOR PRODUCTS
ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 200 PM AST...1800 UTC...THE CENTER OF HURRICANE IGOR WAS LOCATED
NEAR LATITUDE 48.5 NORTH...LONGITUDE 52.0 WEST. IGOR IS MOVING
RAPIDLY TOWARD THE NORTHEAST NEAR 46 MPH...74 KM/HR. A TURN TOWARD
THE NORTH-NORTHEAST AND NORTH WITH A DECREASE IN FORWARD SPEED IS
EXPECTED TONIGHT AND EARLY WEDNESDAY. THE CYCLONE IS THEN EXPECTED
TO TURN TOWARD THE NORTH-NORTHWEST AND NORTHWEST WITH AN ADDITIONAL
DECREASE IN FORWARD SPEED WEDNESDAY NIGHT AND EARLY THURSDAY. ON
THIS TRACK...THE CENTER OF IGOR WILL CONTINUE TO MOVE AWAY FROM THE
ISLAND OF NEWFOUNDLAND.
SURFACE OBSERVATIONS FROM CANADA INDICATE THAT MAXIMUM SUSTAINED
WINDS ARE NEAR 80 MPH...130 KM/HR...WITH HIGHER GUSTS. IGOR IS A
CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE.
IGOR IS EXPECTED TO BECOME AN INTENSE EXTRATROPICAL CYCLONE LATER
TODAY. BONAVISTA NEWFOUNDLAND RECENTLY REPORTED A SUSTAINED WIND
OF 73 MPH...117 KM/HR...AND A GUST TO 90 MPH...144 KM/HR.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 85 MILES...140 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO
460 MILES...740 KM.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 950 MB...28.05 INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...WINDS OF TROPICAL STORM FORCE AND VERY NEAR HURRICANE
FORCE...ESPECIALLY IN GUSTS...ARE BEING REPORTED IN NEWFOUNDLAND.
THESE WINDS WILL LIKELY DIMINISH LATER TODAY AS IGOR MOVES FARTHER
TO THE NORTH.
RAINFALL...THE HEAVY RAINFALL THREAT ASSOCIATED WITH IGOR WILL BE
COMING TO AN END ACROSS NEWFOUNDLAND THIS AFTERNOON AS THE STORM
MOVES RAPIDLY NORTHEASTWARD. ADDITIONAL RAINFALL ACCUMULATIONS OF
1 TO 3 INCHES ARE POSSIBLE OVER EASTERN NEWFOUNDLAND...WITH STORM
TOTAL ACCUMULATIONS OF 4 TO 8 INCHES POSSIBLE.
SURF...LARGE SWELLS WILL CONTINUE TO AFFECT THE EAST COAST OF THE
UNITED STATES THROUGH TODAY AND THE SOUTH-FACING COASTLINES OF
NOVA SCOTIA AND NEWFOUNDLAND FOR THE NEXT FEW DAYS. SWELLS WILL BE
SLOW TO SUBSIDE IN PUERTO RICO...THE VIRGIN ISLANDS...HISPANIOLA...
AND PORTIONS OF THE BAHAMAS DURING THE NEXT COUPLE OF DAYS. THESE
SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENTS.
PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE FOR
ADDITIONAL INFORMATION.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...500 PM AST.
$$
FORECASTER BERG
HURRICANE IGOR INTERMEDIATE ADVISORY NUMBER 54A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010
200 PM AST TUE SEP 21 2010
...IGOR PRODUCING GUSTS TO HURRICANE FORCE OVER PORTIONS OF
NEWFOUNDLAND...
SUMMARY OF 200 PM AST...1800 UTC...INFORMATION
----------------------------------------------
LOCATION...48.5N 52.0W
ABOUT 75 MI...120 KM NNE OF ST. JOHNS NEWFOUNDLAND
MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/HR
PRESENT MOVEMENT...NE OR 35 DEGREES AT 46 MPH...74 KM/HR
MINIMUM CENTRAL PRESSURE...950 MB...28.05 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A HURRICANE WATCH IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM STONES COVE NORTHWARD AND EASTWARD
TO FOGO ISLAND
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM BURGEO NORTHWARD AND EASTWARD
TO TRITON
* THE ISLANDS OF ST-PIERRE AND MIQUELON
A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA WITHIN...IN THIS CASE WITHIN THE NEXT 6 TO
12 HOURS.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL
WEATHER SERVICE FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO
YOUR AREA OUTSIDE THE UNITED STATES...PLEASE MONITOR PRODUCTS
ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 200 PM AST...1800 UTC...THE CENTER OF HURRICANE IGOR WAS LOCATED
NEAR LATITUDE 48.5 NORTH...LONGITUDE 52.0 WEST. IGOR IS MOVING
RAPIDLY TOWARD THE NORTHEAST NEAR 46 MPH...74 KM/HR. A TURN TOWARD
THE NORTH-NORTHEAST AND NORTH WITH A DECREASE IN FORWARD SPEED IS
EXPECTED TONIGHT AND EARLY WEDNESDAY. THE CYCLONE IS THEN EXPECTED
TO TURN TOWARD THE NORTH-NORTHWEST AND NORTHWEST WITH AN ADDITIONAL
DECREASE IN FORWARD SPEED WEDNESDAY NIGHT AND EARLY THURSDAY. ON
THIS TRACK...THE CENTER OF IGOR WILL CONTINUE TO MOVE AWAY FROM THE
ISLAND OF NEWFOUNDLAND.
SURFACE OBSERVATIONS FROM CANADA INDICATE THAT MAXIMUM SUSTAINED
WINDS ARE NEAR 80 MPH...130 KM/HR...WITH HIGHER GUSTS. IGOR IS A
CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE.
IGOR IS EXPECTED TO BECOME AN INTENSE EXTRATROPICAL CYCLONE LATER
TODAY. BONAVISTA NEWFOUNDLAND RECENTLY REPORTED A SUSTAINED WIND
OF 73 MPH...117 KM/HR...AND A GUST TO 90 MPH...144 KM/HR.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 85 MILES...140 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO
460 MILES...740 KM.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 950 MB...28.05 INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...WINDS OF TROPICAL STORM FORCE AND VERY NEAR HURRICANE
FORCE...ESPECIALLY IN GUSTS...ARE BEING REPORTED IN NEWFOUNDLAND.
THESE WINDS WILL LIKELY DIMINISH LATER TODAY AS IGOR MOVES FARTHER
TO THE NORTH.
RAINFALL...THE HEAVY RAINFALL THREAT ASSOCIATED WITH IGOR WILL BE
COMING TO AN END ACROSS NEWFOUNDLAND THIS AFTERNOON AS THE STORM
MOVES RAPIDLY NORTHEASTWARD. ADDITIONAL RAINFALL ACCUMULATIONS OF
1 TO 3 INCHES ARE POSSIBLE OVER EASTERN NEWFOUNDLAND...WITH STORM
TOTAL ACCUMULATIONS OF 4 TO 8 INCHES POSSIBLE.
SURF...LARGE SWELLS WILL CONTINUE TO AFFECT THE EAST COAST OF THE
UNITED STATES THROUGH TODAY AND THE SOUTH-FACING COASTLINES OF
NOVA SCOTIA AND NEWFOUNDLAND FOR THE NEXT FEW DAYS. SWELLS WILL BE
SLOW TO SUBSIDE IN PUERTO RICO...THE VIRGIN ISLANDS...HISPANIOLA...
AND PORTIONS OF THE BAHAMAS DURING THE NEXT COUPLE OF DAYS. THESE
SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENTS.
PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE FOR
ADDITIONAL INFORMATION.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...500 PM AST.
$$
FORECASTER BERG
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Re: ATL: IGOR - Advisories
Tropical Cyclone Information Statements
WOCN31 CWHX 211800
Post-tropical storm igor information statement issued by the
Canadian Hurricane Centre of Environment Canada at 3.30 PM NDT
Tuesday 21 September 2010.
Dangerous post-tropical storm igor buffeting Eastern Newfoundland
with hurricane-force winds
The next statement will be issued by 9.30 PM NDT
1. Current position, strength, central pressure and motion
At 3.30 PM NDT... Post-tropical storm igor was located near
Latitude 48.2 N and longitude 52.3 W... About 45 nautical miles
Or 85 km northeast of st johns. Maximum sustained winds are
Estimated at 75 knots... 139 km/h... And central pressure at 950
MB. Igor is moving north northeast at 30 knots... 55 km/h.
2. Forecast position, central pressure and strength
Date time lat lon MSLP Max wind
NDT MB kts kmh
Sep 21 3.30 PM 48.2N 52.3W 950 75 139 post-tropical
Sep 21 9.30 PM 50.3N 50.4W 950 75 139 post-tropical
Sep 22 3.30 AM 52.8N 49.1W 952 75 139 post-tropical
Sep 22 9.30 AM 55.3N 49.3W 956 70 130 post-tropical
Sep 22 3.30 PM 57.4N 50.0W 960 65 120 post-tropical
Sep 22 9.30 PM 59.3N 51.5W 964 65 120 post-tropical
Sep 23 3.30 AM 60.7N 53.5W 968 65 120 post-tropical
Sep 23 9.30 AM 61.8N 55.9W 972 60 111 post-tropical
Sep 23 3.30 PM 62.9N 58.5W 976 55 102 post-tropical
3. Public weather impacts and warnings summary
Although we have now classified the storm as post-tropical, that is
not to imply a downgrade in the intensity. In fact, the highest
winds have risen as igor draws energy from a trough of low pressure
to the west.
Large areas of the eastern half of Newfoundland have received 100
To 200 millimetres of rain with st. Lawrence and likely
Other localities receiving in excess of 200 millimetres. In addition
there have been many reports of flooding and washouts
Throughout Southeastern Newfoundland. Heavy rainfall should end this
evening as igor moves off to the northeast.
Reports of hurricane force wind gusts have come in from the Burin
Peninsula Avalon Peninsula and Bonavista Peninsula as well as
The northeast coast. Winds will diminish later tonight and
Wednesday as igor moves off to the northeast.
Higher than normal water levels and rough pounding surf can be
expected along the northeast and east coasts of Newfoundland
This evening.
4. Marine weather impacts and warnings summary
Hurricane force winds have been observed by an oil rig, buoy data,
ship data, and coastal stations near, and offshore of Southeastern
Newfoundland. Hurricane force winds will persist near igor's track
until the storm moves northeast then northward further away from
Newfoundland and adjacent waters. Later tonight and on Wednesday
winds will subside as igor moves further away with the improvement
starting gradually over southern areas early this evening and
Further north and east overnight and Wednesday.
As a result hurricane force wind warnings are in effect closest to
igor's track with storm warnings and gale warnings in effect for
marine areas further from the track.
5. Technical discussion for meteorlogists
A. Analysis
Igor has been declared post-tropical with this bulletin.
Satellite and radar imagery as well as surface data clearly
Indicate a frontal boundary near the centre.
However the tropical storm warnings and hurricane watche will
Be continued to maintain awareness of the severity of this storm
And for continuity.
Radar imagery and surface data still indicate areas of moderate
To heavy rain across parts of Central and Eastern Newfoundland.
B. Prognostic
Large and dangerous post-tropical storm igor will move away from
Newfoundland to the northeast and north tonight. This storm will
Move into the Labrador Sea on Wednesday and merge with an upper
Low. Over the Labrador Sea gale to storm force winds are forecast
with gusts approaching hurricane force possible.
C. Public weather
See above.
D. Marine weather
Storm surge of about 70 cm, and possibly exceeding 1 metre locally,
will develop along the northeast coast of Newfoundland this evening
and spread down to the Avalon Peninsula overnight and into the south
coast early Wednesday morning. Sig waves up to 14 metres are now
expected over parts of the Grand Banks.
Predicted wind radii (NM)
Time gales storms hurricane
Ne se sw nw ne se sw nw ne se sw nw
21/18Z 330 330 220 250 180 180 130 130 100 100 120 120
22/00Z 330 330 230 250 180 180 180 180 100 100 120 120
22/06Z 340 340 240 250 180 180 180 130 100 100 120 120
Conventional wind radii discontinued as post-tropical igor
Moves farther from Newfoundland.
End hatt/fogarty
WOCN31 CWHX 211800
Post-tropical storm igor information statement issued by the
Canadian Hurricane Centre of Environment Canada at 3.30 PM NDT
Tuesday 21 September 2010.
Dangerous post-tropical storm igor buffeting Eastern Newfoundland
with hurricane-force winds
The next statement will be issued by 9.30 PM NDT
1. Current position, strength, central pressure and motion
At 3.30 PM NDT... Post-tropical storm igor was located near
Latitude 48.2 N and longitude 52.3 W... About 45 nautical miles
Or 85 km northeast of st johns. Maximum sustained winds are
Estimated at 75 knots... 139 km/h... And central pressure at 950
MB. Igor is moving north northeast at 30 knots... 55 km/h.
2. Forecast position, central pressure and strength
Date time lat lon MSLP Max wind
NDT MB kts kmh
Sep 21 3.30 PM 48.2N 52.3W 950 75 139 post-tropical
Sep 21 9.30 PM 50.3N 50.4W 950 75 139 post-tropical
Sep 22 3.30 AM 52.8N 49.1W 952 75 139 post-tropical
Sep 22 9.30 AM 55.3N 49.3W 956 70 130 post-tropical
Sep 22 3.30 PM 57.4N 50.0W 960 65 120 post-tropical
Sep 22 9.30 PM 59.3N 51.5W 964 65 120 post-tropical
Sep 23 3.30 AM 60.7N 53.5W 968 65 120 post-tropical
Sep 23 9.30 AM 61.8N 55.9W 972 60 111 post-tropical
Sep 23 3.30 PM 62.9N 58.5W 976 55 102 post-tropical
3. Public weather impacts and warnings summary
Although we have now classified the storm as post-tropical, that is
not to imply a downgrade in the intensity. In fact, the highest
winds have risen as igor draws energy from a trough of low pressure
to the west.
Large areas of the eastern half of Newfoundland have received 100
To 200 millimetres of rain with st. Lawrence and likely
Other localities receiving in excess of 200 millimetres. In addition
there have been many reports of flooding and washouts
Throughout Southeastern Newfoundland. Heavy rainfall should end this
evening as igor moves off to the northeast.
Reports of hurricane force wind gusts have come in from the Burin
Peninsula Avalon Peninsula and Bonavista Peninsula as well as
The northeast coast. Winds will diminish later tonight and
Wednesday as igor moves off to the northeast.
Higher than normal water levels and rough pounding surf can be
expected along the northeast and east coasts of Newfoundland
This evening.
4. Marine weather impacts and warnings summary
Hurricane force winds have been observed by an oil rig, buoy data,
ship data, and coastal stations near, and offshore of Southeastern
Newfoundland. Hurricane force winds will persist near igor's track
until the storm moves northeast then northward further away from
Newfoundland and adjacent waters. Later tonight and on Wednesday
winds will subside as igor moves further away with the improvement
starting gradually over southern areas early this evening and
Further north and east overnight and Wednesday.
As a result hurricane force wind warnings are in effect closest to
igor's track with storm warnings and gale warnings in effect for
marine areas further from the track.
5. Technical discussion for meteorlogists
A. Analysis
Igor has been declared post-tropical with this bulletin.
Satellite and radar imagery as well as surface data clearly
Indicate a frontal boundary near the centre.
However the tropical storm warnings and hurricane watche will
Be continued to maintain awareness of the severity of this storm
And for continuity.
Radar imagery and surface data still indicate areas of moderate
To heavy rain across parts of Central and Eastern Newfoundland.
B. Prognostic
Large and dangerous post-tropical storm igor will move away from
Newfoundland to the northeast and north tonight. This storm will
Move into the Labrador Sea on Wednesday and merge with an upper
Low. Over the Labrador Sea gale to storm force winds are forecast
with gusts approaching hurricane force possible.
C. Public weather
See above.
D. Marine weather
Storm surge of about 70 cm, and possibly exceeding 1 metre locally,
will develop along the northeast coast of Newfoundland this evening
and spread down to the Avalon Peninsula overnight and into the south
coast early Wednesday morning. Sig waves up to 14 metres are now
expected over parts of the Grand Banks.
Predicted wind radii (NM)
Time gales storms hurricane
Ne se sw nw ne se sw nw ne se sw nw
21/18Z 330 330 220 250 180 180 130 130 100 100 120 120
22/00Z 330 330 230 250 180 180 180 180 100 100 120 120
22/06Z 340 340 240 250 180 180 180 130 100 100 120 120
Conventional wind radii discontinued as post-tropical igor
Moves farther from Newfoundland.
End hatt/fogarty
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Last advisory...
Hurricane IGOR Public Advisory
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000
WTNT31 KNHC 212031
TCPAT1
BULLETIN
HURRICANE IGOR ADVISORY NUMBER 55
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010
500 PM AST TUE SEP 21 2010
...IGOR BECOMES POST-TROPICAL...
SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...49.3N 51.7W
ABOUT 125 MI...200 KM NNE OF ST. JOHNS NEWFOUNDLAND
MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/HR
PRESENT MOVEMENT...NNE OR 25 DEGREES AT 39 MPH...63 KM/HR
MINIMUM CENTRAL PRESSURE...950 MB...28.05 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A HURRICANE WATCH IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM STONES COVE NORTHWARD AND EASTWARD
TO FOGO ISLAND
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM BURGEO NORTHWARD AND EASTWARD
TO TRITON
* THE ISLANDS OF ST-PIERRE AND MIQUELON
THESE WATCHES AND WARNINGS WILL LIKELY BE DISCONTINUED THIS EVENING
OR TONIGHT.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL
WEATHER SERVICE FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO
YOUR AREA OUTSIDE THE UNITED STATES...PLEASE MONITOR PRODUCTS
ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 500 PM AST...2100 UTC...THE CENTER OF POST-TROPICAL CYCLONE IGOR
WAS LOCATED NEAR LATITUDE 49.3 NORTH...LONGITUDE 51.7 WEST. IGOR IS
MOVING TOWARD THE NORTH-NORTHEAST NEAR 39 MPH...63 KM/HR. A TURN
TOWARD THE NORTH WITH A DECREASE IN FORWARD SPEED IS EXPECTED BY
WEDNESDAY...FOLLOWED BY A TURN TOWARD THE NORTHWEST BY THURSDAY.
MAXIMUM SUSTAINED WINDS ARE NEAR 80 MPH...130 KM/HR...WITH HIGHER
GUSTS. LITTLE CHANGE IN STRENGTH IS EXPECTED DURING THE NEXT 24
HOURS...BUT THE CYCLONE SHOULD BEGIN TO GRADUALLY WEAKEN BY LATE
WEDNESDAY.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 85 MILES...140 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 520
MILES...835 KM.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 950 MB...28.05 INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...WINDS OF TROPICAL STORM FORCE AND VERY NEAR HURRICANE
FORCE...ESPECIALLY IN GUSTS...ARE OCCURRING IN PARTS OF
NEWFOUNDLAND. THESE WINDS WILL LIKELY DIMINISH TONIGHT AS IGOR
MOVES FARTHER TO THE NORTH.
RAINFALL...THE SIGNIFICANT RAINFALL THREAT OVER NEWFOUNDLAND
ASSOCIATED WITH IGOR HAS COME TO AN END. RAINFALL WILL BE TAPERING
OFF THIS EVENING AS IGOR MOVES RAPIDLY NORTH-NORTHEASTWARD.
SURF...LARGE SWELLS ALONG THE EAST COAST OF THE UNITED STATES WILL
BE SUBSIDING TONIGHT. SWELLS WILL BE SLOW TO SUBSIDE IN NOVA
SCOTIA...NEWFOUNDLAND...PUERTO RICO...THE VIRGIN ISLANDS...
HISPANIOLA...AND PORTIONS OF THE BAHAMAS DURING THE NEXT COUPLE OF
DAYS. THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND
RIP CURRENTS. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER
OFFICE FOR ADDITIONAL INFORMATION.
NEXT ADVISORY
-------------
THIS IS THE LAST PUBLIC ADVISORY ISSUED BY THE NATIONAL HURRICANE
CENTER ON IGOR. ADDITIONAL INFORMATION ON THIS SYSTEM CAN BE FOUND
IN HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER SERVICE...
UNDER AWIPS HEADER NFDHSFAT1 AND WMO HEADER FZNT01 KWBC.
$$
FORECASTER BERG
Hurricane IGOR Public Advisory
--------------------------------------------------------------------------------
Home Public Adv Fcst/Adv Discussion Wind Probs Maps/Charts Archive
--------------------------------------------------------------------------------
000
WTNT31 KNHC 212031
TCPAT1
BULLETIN
HURRICANE IGOR ADVISORY NUMBER 55
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010
500 PM AST TUE SEP 21 2010
...IGOR BECOMES POST-TROPICAL...
SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...49.3N 51.7W
ABOUT 125 MI...200 KM NNE OF ST. JOHNS NEWFOUNDLAND
MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/HR
PRESENT MOVEMENT...NNE OR 25 DEGREES AT 39 MPH...63 KM/HR
MINIMUM CENTRAL PRESSURE...950 MB...28.05 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A HURRICANE WATCH IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM STONES COVE NORTHWARD AND EASTWARD
TO FOGO ISLAND
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM BURGEO NORTHWARD AND EASTWARD
TO TRITON
* THE ISLANDS OF ST-PIERRE AND MIQUELON
THESE WATCHES AND WARNINGS WILL LIKELY BE DISCONTINUED THIS EVENING
OR TONIGHT.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL
WEATHER SERVICE FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO
YOUR AREA OUTSIDE THE UNITED STATES...PLEASE MONITOR PRODUCTS
ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 500 PM AST...2100 UTC...THE CENTER OF POST-TROPICAL CYCLONE IGOR
WAS LOCATED NEAR LATITUDE 49.3 NORTH...LONGITUDE 51.7 WEST. IGOR IS
MOVING TOWARD THE NORTH-NORTHEAST NEAR 39 MPH...63 KM/HR. A TURN
TOWARD THE NORTH WITH A DECREASE IN FORWARD SPEED IS EXPECTED BY
WEDNESDAY...FOLLOWED BY A TURN TOWARD THE NORTHWEST BY THURSDAY.
MAXIMUM SUSTAINED WINDS ARE NEAR 80 MPH...130 KM/HR...WITH HIGHER
GUSTS. LITTLE CHANGE IN STRENGTH IS EXPECTED DURING THE NEXT 24
HOURS...BUT THE CYCLONE SHOULD BEGIN TO GRADUALLY WEAKEN BY LATE
WEDNESDAY.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 85 MILES...140 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 520
MILES...835 KM.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 950 MB...28.05 INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...WINDS OF TROPICAL STORM FORCE AND VERY NEAR HURRICANE
FORCE...ESPECIALLY IN GUSTS...ARE OCCURRING IN PARTS OF
NEWFOUNDLAND. THESE WINDS WILL LIKELY DIMINISH TONIGHT AS IGOR
MOVES FARTHER TO THE NORTH.
RAINFALL...THE SIGNIFICANT RAINFALL THREAT OVER NEWFOUNDLAND
ASSOCIATED WITH IGOR HAS COME TO AN END. RAINFALL WILL BE TAPERING
OFF THIS EVENING AS IGOR MOVES RAPIDLY NORTH-NORTHEASTWARD.
SURF...LARGE SWELLS ALONG THE EAST COAST OF THE UNITED STATES WILL
BE SUBSIDING TONIGHT. SWELLS WILL BE SLOW TO SUBSIDE IN NOVA
SCOTIA...NEWFOUNDLAND...PUERTO RICO...THE VIRGIN ISLANDS...
HISPANIOLA...AND PORTIONS OF THE BAHAMAS DURING THE NEXT COUPLE OF
DAYS. THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND
RIP CURRENTS. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER
OFFICE FOR ADDITIONAL INFORMATION.
NEXT ADVISORY
-------------
THIS IS THE LAST PUBLIC ADVISORY ISSUED BY THE NATIONAL HURRICANE
CENTER ON IGOR. ADDITIONAL INFORMATION ON THIS SYSTEM CAN BE FOUND
IN HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER SERVICE...
UNDER AWIPS HEADER NFDHSFAT1 AND WMO HEADER FZNT01 KWBC.
$$
FORECASTER BERG
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tropicana
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Re: ATL: IGOR - Advisories
Advisories are continuing for the moment by Environment Canada:-
Post-tropical storm igor information statement issued by the
Canadian Hurricane Centre of Environment Canada at 9.30 PM NDT
Tuesday 21 September 2010.
The next statement will be issued by 3.30 AM NDT with an
Intermediate message issued by 12:30 AM NDT
...Post-tropical storm igor moving away from Newfoundland after
Battering the province with high winds and heavy rain...
At 9.30 PM NDT... Post-tropical storm igor was located near
Latitude 50.7 N and longitude 49.9 W... About 205 nautical miles
Or 385 km ( 240 miles) east northeast of Gander . Maximum sustained winds
Are estimated at 75 knots... 139 km/h...85mph.... And central pressure at
950 MB. Igor is moving north at 23 knots... 43 km/h.... 27mph.
2. Forecast position, central pressure and strength
Date time lat lon MSLP Max wind
NDT MB kts kmh
Sep 21 9.30 PM 50.7N 49.9W 950 75 139 post-tropical
Sep 22 3.30 AM 53.0N 49.7W 952 75 139 post-tropical
Sep 22 9.30 AM 55.4N 49.8W 956 70 130 post-tropical
Sep 22 3.30 PM 57.5N 50.7W 960 65 120 post-tropical
Sep 22 9.30 PM 59.0N 52.5W 965 60 111 post-tropical
Sep 23 3.30 AM 60.5N 54.3W 967 60 111 post-tropical
Sep 23 9.30 AM 61.7N 56.4W 970 55 102 post-tropical
Sep 23 3.30 PM 62.8N 58.8W 976 55 102 post-tropical
Sep 23 9.30 PM 63.1N 61.3W 980 50 93 post-tropical
3. Public weather impacts and warnings summary
Wind and tropical storm warnings remain in effect for all of eastern
and Northeastern Newfoundland. A hurricane watch for northeastern
coastal areas of the province will likely be lifted within the next
hour or two.
Very strong winds are still occurring over much of Northeastern
Newfoundland, with some coastal stations reporting gusts in excess
Of hurricane force. Winds have abated somewhat over southern coastal
areas and as a result the wind and tropical storm warnings have
Been lifted, though winds will remain gusty throughout the night.
The heaviest rain from igor has moved offshore, though not before
generally dumping 100 to 200 millimetres of rain over most of
Eastern and Central Newfoundland with some local reports in excess
Of 200 millimetres. There have been many reports of flooding and
washouts throughout these areas.
4. Marine weather impacts and warnings summary
Hurricane force winds have been observed by numerous reporting
stations including land stations as well offshore buoys. Winds are
diminishing over southern marine areas as igor moves northeastward.
Hurricane force winds will persist near igor's track tonight
Then begin to subside as the storm moves into the Labrador Sea
On Wednesday.
As a result hurricane force wind warnings remain in effect
For marine areas closest to igor's track with storm warnings and
Gale warnings in effect for marine areas further from the track.
5. Technical discussion for meteorlogists
A. Analysis
Igor has been post-tropical since this afternoon. Satellite imagery
continues to show a strong baroclinic storm with a pronounced dry
slot developing east of the center and a classic long comma cloud
To the west and south. The assymetry in the wind field is also quite
pronounced, with the strongest winds occurring in the western flank
just behind the storm. This is a far more typical wind pattern of a
mid-latitude baroclinic system, but igor's energy has made this wind
field especially large and strong.
B. Prognostic
Post-tropical igor will continue tracking northeastward then
Turn north and northwestward across the Labrador Sea as it begins to
weaken over the next 36 to 48 hours. Most global models are in
agreement with its motion and intensity and the CHC track generally
follows this guidance.
C. Public weather
See above.
D. Marine weather
Storm surge of about 70 cm, and possibly exceeding 1 metre locally,
has developed along the northeast coast of Newfoundland and will
spread down the Avalon Peninsula overnight and into early Wednesday
morning. Sig waves up to 14 metres are possible over the Northern
Grand Banks.
Wind radii no longer given due to the post-tropical nature of igor.
However hurricane force winds still exist near the storm with
The strongest winds in the northwesterlies to the west of igor's
centre. Gale force winds extend much farther from the storm's centre.
Post-tropical storm igor information statement issued by the
Canadian Hurricane Centre of Environment Canada at 9.30 PM NDT
Tuesday 21 September 2010.
The next statement will be issued by 3.30 AM NDT with an
Intermediate message issued by 12:30 AM NDT
...Post-tropical storm igor moving away from Newfoundland after
Battering the province with high winds and heavy rain...
At 9.30 PM NDT... Post-tropical storm igor was located near
Latitude 50.7 N and longitude 49.9 W... About 205 nautical miles
Or 385 km ( 240 miles) east northeast of Gander . Maximum sustained winds
Are estimated at 75 knots... 139 km/h...85mph.... And central pressure at
950 MB. Igor is moving north at 23 knots... 43 km/h.... 27mph.
2. Forecast position, central pressure and strength
Date time lat lon MSLP Max wind
NDT MB kts kmh
Sep 21 9.30 PM 50.7N 49.9W 950 75 139 post-tropical
Sep 22 3.30 AM 53.0N 49.7W 952 75 139 post-tropical
Sep 22 9.30 AM 55.4N 49.8W 956 70 130 post-tropical
Sep 22 3.30 PM 57.5N 50.7W 960 65 120 post-tropical
Sep 22 9.30 PM 59.0N 52.5W 965 60 111 post-tropical
Sep 23 3.30 AM 60.5N 54.3W 967 60 111 post-tropical
Sep 23 9.30 AM 61.7N 56.4W 970 55 102 post-tropical
Sep 23 3.30 PM 62.8N 58.8W 976 55 102 post-tropical
Sep 23 9.30 PM 63.1N 61.3W 980 50 93 post-tropical
3. Public weather impacts and warnings summary
Wind and tropical storm warnings remain in effect for all of eastern
and Northeastern Newfoundland. A hurricane watch for northeastern
coastal areas of the province will likely be lifted within the next
hour or two.
Very strong winds are still occurring over much of Northeastern
Newfoundland, with some coastal stations reporting gusts in excess
Of hurricane force. Winds have abated somewhat over southern coastal
areas and as a result the wind and tropical storm warnings have
Been lifted, though winds will remain gusty throughout the night.
The heaviest rain from igor has moved offshore, though not before
generally dumping 100 to 200 millimetres of rain over most of
Eastern and Central Newfoundland with some local reports in excess
Of 200 millimetres. There have been many reports of flooding and
washouts throughout these areas.
4. Marine weather impacts and warnings summary
Hurricane force winds have been observed by numerous reporting
stations including land stations as well offshore buoys. Winds are
diminishing over southern marine areas as igor moves northeastward.
Hurricane force winds will persist near igor's track tonight
Then begin to subside as the storm moves into the Labrador Sea
On Wednesday.
As a result hurricane force wind warnings remain in effect
For marine areas closest to igor's track with storm warnings and
Gale warnings in effect for marine areas further from the track.
5. Technical discussion for meteorlogists
A. Analysis
Igor has been post-tropical since this afternoon. Satellite imagery
continues to show a strong baroclinic storm with a pronounced dry
slot developing east of the center and a classic long comma cloud
To the west and south. The assymetry in the wind field is also quite
pronounced, with the strongest winds occurring in the western flank
just behind the storm. This is a far more typical wind pattern of a
mid-latitude baroclinic system, but igor's energy has made this wind
field especially large and strong.
B. Prognostic
Post-tropical igor will continue tracking northeastward then
Turn north and northwestward across the Labrador Sea as it begins to
weaken over the next 36 to 48 hours. Most global models are in
agreement with its motion and intensity and the CHC track generally
follows this guidance.
C. Public weather
See above.
D. Marine weather
Storm surge of about 70 cm, and possibly exceeding 1 metre locally,
has developed along the northeast coast of Newfoundland and will
spread down the Avalon Peninsula overnight and into early Wednesday
morning. Sig waves up to 14 metres are possible over the Northern
Grand Banks.
Wind radii no longer given due to the post-tropical nature of igor.
However hurricane force winds still exist near the storm with
The strongest winds in the northwesterlies to the west of igor's
centre. Gale force winds extend much farther from the storm's centre.
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tropicana
- Category 5
- Posts: 8056
- Joined: Sat Sep 27, 2003 6:48 pm
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- Contact:
Re: ATL: IGOR - Advisories
Post-tropical storm igor information statement issued by the Canadian
Hurricane Centre of Environment Canada at 3.31 AM NDT Wednesday
22 September 2010.
The next statement will be issued by 9.30 AM NDT
Intermediate message issued by 6.30 AM NDT.
...Post-tropical storm igor moving further away from Newfoundland
And toward the East Labrador Sea...
At 3.30 AM NDT... Hurricane igor was located near latitude 53.2 N
And longitude 49.8 W... About 255 nautical miles or 470 km ( 290 miles)
East northeast of st anthony nl. Maximum sustained winds are
Estimated at 65 knots... 120 km/h...75mph... And central pressure at 952
MB. Igor is moving north at 28 knots... 52 km/h or 32mph..
2. Forecast position, central pressure and strength
Date time lat lon MSLP Max wind
NDT MB kts kmh
Sep 22 3.30 AM 53.2N 49.8W 952 65 120 post-tropical
Sep 22 9.30 AM 56.0N 50.0W 955 60 111 post-tropical
Sep 22 3.30 PM 57.9N 51.6W 956 60 111 post-tropical
Sep 22 9.30 PM 59.4N 53.8W 956 60 111 post-tropical
Sep 23 3.30 AM 60.2N 56.4W 958 55 102 post-tropical
Sep 23 9.30 AM 60.8N 57.8W 959 50 93 post-tropical
Sep 23 3.30 PM 61.6N 58.8W 963 45 83 post-tropical
3. Public weather impacts and warnings summary
Wind and tropical storm warnings remain in effect for Northeastern
Newfoundland, but will likely be lifted later this morning as winds
are expected to fall below warning criteria as igor moves further
away.
The nlwo will be issuing a preliminary summary of igor's impacts on
Newfoundland later this morning.
4. Marine weather impacts and warnings summary
Hurricane force wind warnings remain in effect for northeasternmost
Newfoundland marine areas closest to the track of post-tropical
Storm igor with storm warnings in effect for adjacent waters
And most of the Labrador Sea.
5. Technical discussion for meteorologists
A. Analysis
Igor has been post-tropical since this afternoon, and satellite
imagery continues to show igor as a large and strong baroclinic
storm.
B. Prognostic
Post-tropical igor will continue tracking north then turn
northwestward across the Labrador Sea as it begins to weaken over
The next 36 hours. The Gem-regional and gfs models seem to have a
very good handle on its pressure and wind patterns and the CHC
Track and intensity is very close to this guidance.
C. Public weather
See above.
D. Marine weather
Storm surge of up to 85 cm was reported along parts of the northeast
coast of Newfoundland Tuesday evening. This surge will spread down
the Avalon Peninsula overnight and into early Wednesday morning.
Significant wave heights in excess of 10 metres are expected over
some offshore waters in the wind flow and swells genearted by igor.
Wind radii no longer given due to the post-tropical nature of igor.
However hurricane force winds still exist near the storm with
The strongest winds in the northwesterlies to the west of igor's
centre.
As igor is now completely post-tropical and behaving more and more
like a baroclinic system, its pressure and wind fields are being
Well handled by our global models. As a result it is expected the
CHC will likely cease messaging on igor later this morning.
Hurricane Centre of Environment Canada at 3.31 AM NDT Wednesday
22 September 2010.
The next statement will be issued by 9.30 AM NDT
Intermediate message issued by 6.30 AM NDT.
...Post-tropical storm igor moving further away from Newfoundland
And toward the East Labrador Sea...
At 3.30 AM NDT... Hurricane igor was located near latitude 53.2 N
And longitude 49.8 W... About 255 nautical miles or 470 km ( 290 miles)
East northeast of st anthony nl. Maximum sustained winds are
Estimated at 65 knots... 120 km/h...75mph... And central pressure at 952
MB. Igor is moving north at 28 knots... 52 km/h or 32mph..
2. Forecast position, central pressure and strength
Date time lat lon MSLP Max wind
NDT MB kts kmh
Sep 22 3.30 AM 53.2N 49.8W 952 65 120 post-tropical
Sep 22 9.30 AM 56.0N 50.0W 955 60 111 post-tropical
Sep 22 3.30 PM 57.9N 51.6W 956 60 111 post-tropical
Sep 22 9.30 PM 59.4N 53.8W 956 60 111 post-tropical
Sep 23 3.30 AM 60.2N 56.4W 958 55 102 post-tropical
Sep 23 9.30 AM 60.8N 57.8W 959 50 93 post-tropical
Sep 23 3.30 PM 61.6N 58.8W 963 45 83 post-tropical
3. Public weather impacts and warnings summary
Wind and tropical storm warnings remain in effect for Northeastern
Newfoundland, but will likely be lifted later this morning as winds
are expected to fall below warning criteria as igor moves further
away.
The nlwo will be issuing a preliminary summary of igor's impacts on
Newfoundland later this morning.
4. Marine weather impacts and warnings summary
Hurricane force wind warnings remain in effect for northeasternmost
Newfoundland marine areas closest to the track of post-tropical
Storm igor with storm warnings in effect for adjacent waters
And most of the Labrador Sea.
5. Technical discussion for meteorologists
A. Analysis
Igor has been post-tropical since this afternoon, and satellite
imagery continues to show igor as a large and strong baroclinic
storm.
B. Prognostic
Post-tropical igor will continue tracking north then turn
northwestward across the Labrador Sea as it begins to weaken over
The next 36 hours. The Gem-regional and gfs models seem to have a
very good handle on its pressure and wind patterns and the CHC
Track and intensity is very close to this guidance.
C. Public weather
See above.
D. Marine weather
Storm surge of up to 85 cm was reported along parts of the northeast
coast of Newfoundland Tuesday evening. This surge will spread down
the Avalon Peninsula overnight and into early Wednesday morning.
Significant wave heights in excess of 10 metres are expected over
some offshore waters in the wind flow and swells genearted by igor.
Wind radii no longer given due to the post-tropical nature of igor.
However hurricane force winds still exist near the storm with
The strongest winds in the northwesterlies to the west of igor's
centre.
As igor is now completely post-tropical and behaving more and more
like a baroclinic system, its pressure and wind fields are being
Well handled by our global models. As a result it is expected the
CHC will likely cease messaging on igor later this morning.
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tropicana
- Category 5
- Posts: 8056
- Joined: Sat Sep 27, 2003 6:48 pm
- Location: Niagara Falls, Ontario, Canada
- Contact:
Re: ATL: IGOR - Advisories
WOCN31 CWHX 220900
Post-tropical storm igor intermediate information statement issued
By the Canadian Hurricane Centre of Environment Canada at 6.30 AM NDT
Wednesday 22 September 2010.
**this will be the final statement issued by the Canadian Hurricane
Centre on post-tropical storm IGOR
**
At 6.30 AM NDT... The remains of post-tropical storm igor was
Located near latitude 54.7 N and longitude 50.0 W... About 295
nautical miles or 550 km/ 340 miles northeast of st anthony nl.
Igor is moving towards the north at 30 knots... 56 km/h...35mph. Maximum
Sustained winds are estimated at 65 knots... 120 km/h 75mph...and central
pressure at 950 MB.
All remaining tropical storm warnings have been ended for
Newfoundland. However strong and blustery winds will continue over
much of the province today.
Igor is now completely post-tropical and its wind and pressure fields
are being well handled by our global models. Any remaining impacts
from post-tropical storm igor will be covered by regular public and
marine forecasts and warnings. Please consult the latest forecasts
and warnings issued for your region by Environment Canada.
The nlwo issued a storm summary message earlier this morning on the
impacts of igor on Newfoundland.
Post-tropical storm igor intermediate information statement issued
By the Canadian Hurricane Centre of Environment Canada at 6.30 AM NDT
Wednesday 22 September 2010.
**this will be the final statement issued by the Canadian Hurricane
Centre on post-tropical storm IGOR
**
At 6.30 AM NDT... The remains of post-tropical storm igor was
Located near latitude 54.7 N and longitude 50.0 W... About 295
nautical miles or 550 km/ 340 miles northeast of st anthony nl.
Igor is moving towards the north at 30 knots... 56 km/h...35mph. Maximum
Sustained winds are estimated at 65 knots... 120 km/h 75mph...and central
pressure at 950 MB.
All remaining tropical storm warnings have been ended for
Newfoundland. However strong and blustery winds will continue over
much of the province today.
Igor is now completely post-tropical and its wind and pressure fields
are being well handled by our global models. Any remaining impacts
from post-tropical storm igor will be covered by regular public and
marine forecasts and warnings. Please consult the latest forecasts
and warnings issued for your region by Environment Canada.
The nlwo issued a storm summary message earlier this morning on the
impacts of igor on Newfoundland.
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tropicana
- Category 5
- Posts: 8056
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- Location: Niagara Falls, Ontario, Canada
- Contact:
Re: ATL: IGOR - Advisories
Special weather summary message for Newfoundland and Labrador issued
by Environment Canada at 4:47 AM NDT Wednesday 22 September 2010.
The following is a preliminary summary of hurricane igor and its
effects as it passed by just south and east of Newfoundland on
Tuesday September 21 2010...
Hurricane igor began impacting Newfoundland late Monday night into
Tuesday morning with heavy rain and strong winds as it approached the
region from the southwest. As igor tracked just south of Cape Race
around noon on Tuesday it remained an extremely powerful storm with
intense and heavy rainfall extending well north and west of the storm
centre and a very large area of hurricane force winds immediately
behind it. Even after completing post-tropical transition northeast
of the province in the afternoon, igor continued to pummel the entire
eastern half of Newfoundland with extremely high winds which
continued over most areas well into the evening.
Adding to igor's impacts was a pre-existing trough of low pressure
that tracked slowly eastward across Newfoundland and brought an
initial band of heavy rain to parts of Southern Newfoundland earlier
on Monday. This trough began to interact with igor as it approached
drawing moisture and some energy from the hurricane and contributed
to some of the extremely heavy rates of rainfall observed over parts
of the province on Tuesday. For example, in the five hour period
between 7:30 AM and 12:30 PM NDT the weather station at Bonavista
received 135 millimetres of rain, including 69 millimetres in a
two-hour period just before the station stopped recording rainfall
when it is believed its rain gauge overflowed.
Reports of extensive flooding, wind damage, and power outages were
received from all over the eastern half of Newfoundland Monday night
and Tuesday as a result of hurricane igor.
Here are some unofficial storm totals from this system as of 2:30 AM
NDT.
Total rainfall
--------------------------------------------------------
St. Lawrence 239 mm
Bonavista 197 mm (* see note below)
Lethbridge (private station) 174 mm (up to 5:00 PM Tuesday)
St. Pierre 160 mm
St. John's west 134 mm
Gander 124 mm
St. John's airport 120 mm
Brownsdale (private station) 104 mm (up to 5:30 PM Tuesday)
Port union (private station) 79 mm (up to 8:30 AM Tuesday)
Bay d'Espoir (private station) 76 mm (up to 4:00 PM Tuesday)
Cape Race 51 mm (** see note below)
Burgeo 41 mm
* stopped reporting rainfall amounts at 1:30PM Tuesday however
significant rainfall still occurred for several hours after.
** did not report between 16Z and 20Z on Tuesday as igor was pulling
away.
Peak wind gusts
--------------------------------------------------------
Cape pine 172 km/h
Sagona Island 163 km/h
Bonavista 155 km/h
Pool's Island 146 km/h
St. John's airport 137 km/h
Grate's cove 135 km/h
St. Pierre 135 km/h
Argentia 132 km/h
Twillingate 131 km/h
St. Lawrence 124 km/h
St. John's west 120 km/h
Winterland 111 km/h
Englee 111 km/h
Gander 109 km/h
Cape Race 106 km/h
Burgeo 100 km/h
Stephenville 98 km/h
Port aux Basques 95 km/h
St. Anthony 81 km/h
End/
by Environment Canada at 4:47 AM NDT Wednesday 22 September 2010.
The following is a preliminary summary of hurricane igor and its
effects as it passed by just south and east of Newfoundland on
Tuesday September 21 2010...
Hurricane igor began impacting Newfoundland late Monday night into
Tuesday morning with heavy rain and strong winds as it approached the
region from the southwest. As igor tracked just south of Cape Race
around noon on Tuesday it remained an extremely powerful storm with
intense and heavy rainfall extending well north and west of the storm
centre and a very large area of hurricane force winds immediately
behind it. Even after completing post-tropical transition northeast
of the province in the afternoon, igor continued to pummel the entire
eastern half of Newfoundland with extremely high winds which
continued over most areas well into the evening.
Adding to igor's impacts was a pre-existing trough of low pressure
that tracked slowly eastward across Newfoundland and brought an
initial band of heavy rain to parts of Southern Newfoundland earlier
on Monday. This trough began to interact with igor as it approached
drawing moisture and some energy from the hurricane and contributed
to some of the extremely heavy rates of rainfall observed over parts
of the province on Tuesday. For example, in the five hour period
between 7:30 AM and 12:30 PM NDT the weather station at Bonavista
received 135 millimetres of rain, including 69 millimetres in a
two-hour period just before the station stopped recording rainfall
when it is believed its rain gauge overflowed.
Reports of extensive flooding, wind damage, and power outages were
received from all over the eastern half of Newfoundland Monday night
and Tuesday as a result of hurricane igor.
Here are some unofficial storm totals from this system as of 2:30 AM
NDT.
Total rainfall
--------------------------------------------------------
St. Lawrence 239 mm
Bonavista 197 mm (* see note below)
Lethbridge (private station) 174 mm (up to 5:00 PM Tuesday)
St. Pierre 160 mm
St. John's west 134 mm
Gander 124 mm
St. John's airport 120 mm
Brownsdale (private station) 104 mm (up to 5:30 PM Tuesday)
Port union (private station) 79 mm (up to 8:30 AM Tuesday)
Bay d'Espoir (private station) 76 mm (up to 4:00 PM Tuesday)
Cape Race 51 mm (** see note below)
Burgeo 41 mm
* stopped reporting rainfall amounts at 1:30PM Tuesday however
significant rainfall still occurred for several hours after.
** did not report between 16Z and 20Z on Tuesday as igor was pulling
away.
Peak wind gusts
--------------------------------------------------------
Cape pine 172 km/h
Sagona Island 163 km/h
Bonavista 155 km/h
Pool's Island 146 km/h
St. John's airport 137 km/h
Grate's cove 135 km/h
St. Pierre 135 km/h
Argentia 132 km/h
Twillingate 131 km/h
St. Lawrence 124 km/h
St. John's west 120 km/h
Winterland 111 km/h
Englee 111 km/h
Gander 109 km/h
Cape Race 106 km/h
Burgeo 100 km/h
Stephenville 98 km/h
Port aux Basques 95 km/h
St. Anthony 81 km/h
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