Caribbean - Central America Weather
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- cycloneye
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- Age: 68
- Joined: Thu Oct 10, 2002 10:54 am
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Re: Caribbean - Centralamerica Weather Thread
Afternoon discussion by NWS San Juan
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
315 PM AST THU APR 15 2010
.SYNOPSIS...AT UPPER LEVELS...A RIDGE WILL BUILD EAST OF THE
LEEWARD ISLANDS OVER THE WEEKEND AND THE JET NEAR 24 NORTH WILL
LIFT NORTHWARD. A TROUGH WILL PULL ACROSS FLORIDA AND SEND THE JET
CLOSER TO THE AREA IN A MORE NORTHEAST-SOUTHWEST ORIENTATION EARLY
NEXT WEEK. THE UPPER LEVEL WINDS WILL RETURN SLOWLY TO ZONAL FLOW
DURING THE REST OF THE WEEK.
AT MID LEVELS...HIGH PRESSURE IN THE ATLANTIC WILL PUSH INTO THE
CARIBBEAN NEXT WEEK AS STRONG LOW PRESSURES ROTATE THROUGH THE
NORTHWESTERN ATLANTIC NOW THROUGH THE SUNDAY AFTER NEXT. FLOW AT
MID LEVELS REMAINS WEST OR SOUTHWESTERLY WITH LIMITED MOISTURE.
AT LOWER LEVELS...BANDS OF MOISTURE AND WEAK BOUNDARIES WILL PUSH
THROUGH THE LOCAL AREA THROUGH SUNDAY IN NORTHEASTERLY FLOW. THEN
A SURFACE RIDGE AND VARIOUS HIGH CENTERS WILL DOMINATE THE
PATTERN NEXT WEEK...SOME OF WHICH WILL SWEEP MOISTURE IN FROM THE
SOUTHERN CARIBBEAN.
&&
.DISCUSSION...BANDS OF SHOWERS MOVED OVER PUERTO RICO AND
INTENSIFIED AS THEY APPROACHED THE COAST LEAVING UP TO 1 INCH OF
RAIN OVER SOME AREAS. NO THUNDER WAS HEARD AND TOPS WERE
GENERALLY BELOW 25 THOUSAND FEET...WITH THE HIGHEST TOPS ON THE
SOUTH SIDE OF THE ISLAND. A FEW SHOWERS ALSO OCCURRED OVER SAINT
CROIX...BUT SHOWERS WERE GENERALLY DECREASING IN THE U.S. VIRGIN
ISLANDS TODAY. NORTHERLY FLOW WILL CONTINUE AND WILL ALSO SLOWLY
VEER TOWARD THE NORTHEAST TONIGHT AND TOMORROW. MOISTURE CONTINUES
WITH PRECIPITABLE WATER VALUES HOVERING CLOSE TO 1.9 INCHES SO FAR
TODAY. EXPECT THAT THIS WILL SLOWLY DECREASE AS THE BACK EDGE OF
THE MOISTURE NEARS THE LOCAL AREA. NEVERTHELESS...THE AIR MASS IS
UNSTABLE...THOUGH A LITTLE COOLER THAN NORMAL...AND WILL CONTINUE
TO SPAWN SHOWERS WHEN IT IS FORCED OVER THE MOUNTAINS OF PUERTO
RICO. THIS WILL KEEP SCATTERED TO NUMEROUS SHOWERS IN THE FORECAST
FOR AT LEAST THE NEXT 24 HOURS. BOTH THE GFS AND THE NAM SUGGEST
THAT WE WILL HAVE A LITTLE BREAK IN THE SHOWERS...IF NOT THE
CLOUDS...TONIGHT BUT THAT ANOTHER AREA OF SHOWERS WILL APPROACH
BETWEEN 16/04-10Z. THEREFORE HAVE PLACED NUMEROUS SHOWERS IN THE
FORECAST IN THE FOOTHILLS OF THE NORTHERN COASTAL RANGE IN NORTH
AND NORTHEAST PUERTO RICO THAT WILL CONTINUE ROUGHLY UNTIL FRIDAY
MORNING.
OVER THE WEEKEND THE SOLID NORTHEASTERLY FLOW WILL END AND A
STRING OF WEAK HIGHS DEVELOP NEAR THE LATITUDE OF PUERTO RICO AT
850 MB. THIS HAS THE NET EFFECT OF MIXING THE MOISTURE FROM THE
SOUTHERN CARIBBEAN WITH THE MOISTURE FROM THE SOUTHWEST ATLANTIC
WHICH RE-BUILDS EARLY NEXT WEEK. THIS WILL LEAVE PUERTO RICO AND
THE U.S. VIRGIN ISLANDS IN SHOWERY WEATHER MOST DAYS NEXT
WEEK...BUT SHOULD NOT TRIGGER WIDESPREAD FLOODING. CURRENT MOS
VALUES SHOW HIGH TEMPERATURES EDGING UP FROM TODAY THROUGH THE
NEXT 7 DAYS AND SOUTHEAST FLOW AT 850 MB LATE NEXT WEEK WILL
HELP.
&&
.AVIATION...
GENERALLY VFR CONDITIONS SHOULD PREVAIL ACROSS ALL TAF
SITES DURING THE NEXT 24 HOURS. BRIEF PERIODS OF MVFR CONDITIONS ARE
POSSIBLE ACROSS TJSJ...TJBQ...TISX...TIST AND TKPK IN PASSING
SHOWERS OR VCSH.
ALSO...OCCASIONAL MOUNTAIN OBSCURATIONS ACROSS THE CORDILLERA
CENTRAL OF PR EXPECTED THROUGH 16/12Z. A PASSING SHRA MAY BRING BRIEF
MVFR CIGS AND VSBY TO TJPS AND TJMZ THROUGH 15/22Z.
&&
.MARINE...WINDS WILL INCREASE OVERNIGHT AND SHOULD PULL SEAS IN
THE ATLANTIC WATERS AND PASSAGES TO ABOVE SMALL CRAFT ADVISORY
CRITERIA. WINDS WILL BEGIN TO DIMINISH SLOWLY OVER THE WEEKEND AND
SEAS WILL SLOWLY FOLLOW. MUCH BETTER CONDITIONS ARE EXPECTED FOR
SEAS ON MONDAY...THOUGH SCATTERED SHOWERS MAY PERSIST THROUGH THE
WEEK. EXCEPT SOUTH OF THE ATLANTIC PASSAGES...SEAS IN THE
CARIBBEAN WILL REMAIN BELOW 7 FEET.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
315 PM AST THU APR 15 2010
.SYNOPSIS...AT UPPER LEVELS...A RIDGE WILL BUILD EAST OF THE
LEEWARD ISLANDS OVER THE WEEKEND AND THE JET NEAR 24 NORTH WILL
LIFT NORTHWARD. A TROUGH WILL PULL ACROSS FLORIDA AND SEND THE JET
CLOSER TO THE AREA IN A MORE NORTHEAST-SOUTHWEST ORIENTATION EARLY
NEXT WEEK. THE UPPER LEVEL WINDS WILL RETURN SLOWLY TO ZONAL FLOW
DURING THE REST OF THE WEEK.
AT MID LEVELS...HIGH PRESSURE IN THE ATLANTIC WILL PUSH INTO THE
CARIBBEAN NEXT WEEK AS STRONG LOW PRESSURES ROTATE THROUGH THE
NORTHWESTERN ATLANTIC NOW THROUGH THE SUNDAY AFTER NEXT. FLOW AT
MID LEVELS REMAINS WEST OR SOUTHWESTERLY WITH LIMITED MOISTURE.
AT LOWER LEVELS...BANDS OF MOISTURE AND WEAK BOUNDARIES WILL PUSH
THROUGH THE LOCAL AREA THROUGH SUNDAY IN NORTHEASTERLY FLOW. THEN
A SURFACE RIDGE AND VARIOUS HIGH CENTERS WILL DOMINATE THE
PATTERN NEXT WEEK...SOME OF WHICH WILL SWEEP MOISTURE IN FROM THE
SOUTHERN CARIBBEAN.
&&
.DISCUSSION...BANDS OF SHOWERS MOVED OVER PUERTO RICO AND
INTENSIFIED AS THEY APPROACHED THE COAST LEAVING UP TO 1 INCH OF
RAIN OVER SOME AREAS. NO THUNDER WAS HEARD AND TOPS WERE
GENERALLY BELOW 25 THOUSAND FEET...WITH THE HIGHEST TOPS ON THE
SOUTH SIDE OF THE ISLAND. A FEW SHOWERS ALSO OCCURRED OVER SAINT
CROIX...BUT SHOWERS WERE GENERALLY DECREASING IN THE U.S. VIRGIN
ISLANDS TODAY. NORTHERLY FLOW WILL CONTINUE AND WILL ALSO SLOWLY
VEER TOWARD THE NORTHEAST TONIGHT AND TOMORROW. MOISTURE CONTINUES
WITH PRECIPITABLE WATER VALUES HOVERING CLOSE TO 1.9 INCHES SO FAR
TODAY. EXPECT THAT THIS WILL SLOWLY DECREASE AS THE BACK EDGE OF
THE MOISTURE NEARS THE LOCAL AREA. NEVERTHELESS...THE AIR MASS IS
UNSTABLE...THOUGH A LITTLE COOLER THAN NORMAL...AND WILL CONTINUE
TO SPAWN SHOWERS WHEN IT IS FORCED OVER THE MOUNTAINS OF PUERTO
RICO. THIS WILL KEEP SCATTERED TO NUMEROUS SHOWERS IN THE FORECAST
FOR AT LEAST THE NEXT 24 HOURS. BOTH THE GFS AND THE NAM SUGGEST
THAT WE WILL HAVE A LITTLE BREAK IN THE SHOWERS...IF NOT THE
CLOUDS...TONIGHT BUT THAT ANOTHER AREA OF SHOWERS WILL APPROACH
BETWEEN 16/04-10Z. THEREFORE HAVE PLACED NUMEROUS SHOWERS IN THE
FORECAST IN THE FOOTHILLS OF THE NORTHERN COASTAL RANGE IN NORTH
AND NORTHEAST PUERTO RICO THAT WILL CONTINUE ROUGHLY UNTIL FRIDAY
MORNING.
OVER THE WEEKEND THE SOLID NORTHEASTERLY FLOW WILL END AND A
STRING OF WEAK HIGHS DEVELOP NEAR THE LATITUDE OF PUERTO RICO AT
850 MB. THIS HAS THE NET EFFECT OF MIXING THE MOISTURE FROM THE
SOUTHERN CARIBBEAN WITH THE MOISTURE FROM THE SOUTHWEST ATLANTIC
WHICH RE-BUILDS EARLY NEXT WEEK. THIS WILL LEAVE PUERTO RICO AND
THE U.S. VIRGIN ISLANDS IN SHOWERY WEATHER MOST DAYS NEXT
WEEK...BUT SHOULD NOT TRIGGER WIDESPREAD FLOODING. CURRENT MOS
VALUES SHOW HIGH TEMPERATURES EDGING UP FROM TODAY THROUGH THE
NEXT 7 DAYS AND SOUTHEAST FLOW AT 850 MB LATE NEXT WEEK WILL
HELP.
&&
.AVIATION...
GENERALLY VFR CONDITIONS SHOULD PREVAIL ACROSS ALL TAF
SITES DURING THE NEXT 24 HOURS. BRIEF PERIODS OF MVFR CONDITIONS ARE
POSSIBLE ACROSS TJSJ...TJBQ...TISX...TIST AND TKPK IN PASSING
SHOWERS OR VCSH.
ALSO...OCCASIONAL MOUNTAIN OBSCURATIONS ACROSS THE CORDILLERA
CENTRAL OF PR EXPECTED THROUGH 16/12Z. A PASSING SHRA MAY BRING BRIEF
MVFR CIGS AND VSBY TO TJPS AND TJMZ THROUGH 15/22Z.
&&
.MARINE...WINDS WILL INCREASE OVERNIGHT AND SHOULD PULL SEAS IN
THE ATLANTIC WATERS AND PASSAGES TO ABOVE SMALL CRAFT ADVISORY
CRITERIA. WINDS WILL BEGIN TO DIMINISH SLOWLY OVER THE WEEKEND AND
SEAS WILL SLOWLY FOLLOW. MUCH BETTER CONDITIONS ARE EXPECTED FOR
SEAS ON MONDAY...THOUGH SCATTERED SHOWERS MAY PERSIST THROUGH THE
WEEK. EXCEPT SOUTH OF THE ATLANTIC PASSAGES...SEAS IN THE
CARIBBEAN WILL REMAIN BELOW 7 FEET.
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- Gustywind
- Category 5
- Posts: 12334
- Joined: Mon Sep 03, 2007 7:29 am
- Location: Baie-Mahault, GUADELOUPE
From a correspondant of Trinidad
- Updates from the Islands -
- - Trinidad & Tobago - -
RAIN!!
By Lorne Ramsoomair <lorne_ramsoomair at yahoo.com>
Date: Thu, 15 Apr 2010 08:41:25 -0700 (PDT)
Looks like we're in for some much needed showers today and this weekend!!
I saw the ITCZ coming for some days now but was afraid to post in case I put a jinx on The whole thing (Trini's call it Goat mouth:)
We've had more brush fires this year than I can remember, so even though the land is dry please watch out for plenty water runoff especially near the the mountains (a lightning strike just knocked out the power so I'm on emergency backup) possibly bringing down lots of mud. Watch out for landslides as well if the rain becomes heavy and sustained.
Main thing is ...RAIN!!!! Thank God.
Stay safe everyone,
Lorne
- Updates from the Islands -
- - Trinidad & Tobago - -
RAIN!!
By Lorne Ramsoomair <lorne_ramsoomair at yahoo.com>
Date: Thu, 15 Apr 2010 08:41:25 -0700 (PDT)
Looks like we're in for some much needed showers today and this weekend!!
I saw the ITCZ coming for some days now but was afraid to post in case I put a jinx on The whole thing (Trini's call it Goat mouth:)
We've had more brush fires this year than I can remember, so even though the land is dry please watch out for plenty water runoff especially near the the mountains (a lightning strike just knocked out the power so I'm on emergency backup) possibly bringing down lots of mud. Watch out for landslides as well if the rain becomes heavy and sustained.
Main thing is ...RAIN!!!! Thank God.
Stay safe everyone,
Lorne
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- Gustywind
- Category 5
- Posts: 12334
- Joined: Mon Sep 03, 2007 7:29 am
- Location: Baie-Mahault, GUADELOUPE
000
AWCA82 TJSJ 152002
RWSVI
WEATHER SUMMARY FOR THE U.S. VIRGIN ISLANDS
NATIONAL WEATHER SERVICE SAN JUAN PR
402 PM AST THU APR 15 2010
VARIABLY CLOUDY SKIES PREVAILED ACROSS THE U.S. VIRGIN ISLANDS
DURING THE AFTERNOON HOURS. THE DOPPLER WEATHER RADAR DETECTED
PASSING SHOWERS OVER THE SURROUNDING WATERS. WINDS WERE FROM THE
NORTH NORTHEAST AT AROUND 10 MPH...WITH SOME HIGHER GUSTS.
MOIST AND UNSTABLE CONDITIONS ARE EXPECTED TO PREVAIL THROUGH AT
LEAST FRIDAY. THEREFORE EXPECT... ISOLATED TO SCATTERED SHOWERS ACROSS
THE LOCAL ISLANDS FROM TIME TO TIME.
ACROSS THE REGIONAL WATERS...MARINERS CAN EXPECT WINDS UP TO 21 KNOTS
AND SEAS UP TO 7 FEET. A SMALL CRAFT ADVISORY IS IN EFFECT FOR
THE OFF SHORE ATLANTIC WATERS. SMALL BOAT OPERATORS SHOULD
EXERCISE CAUTION ELSEWHERE.
$$
AWCA82 TJSJ 152002
RWSVI
WEATHER SUMMARY FOR THE U.S. VIRGIN ISLANDS
NATIONAL WEATHER SERVICE SAN JUAN PR
402 PM AST THU APR 15 2010
VARIABLY CLOUDY SKIES PREVAILED ACROSS THE U.S. VIRGIN ISLANDS
DURING THE AFTERNOON HOURS. THE DOPPLER WEATHER RADAR DETECTED
PASSING SHOWERS OVER THE SURROUNDING WATERS. WINDS WERE FROM THE
NORTH NORTHEAST AT AROUND 10 MPH...WITH SOME HIGHER GUSTS.
MOIST AND UNSTABLE CONDITIONS ARE EXPECTED TO PREVAIL THROUGH AT
LEAST FRIDAY. THEREFORE EXPECT... ISOLATED TO SCATTERED SHOWERS ACROSS
THE LOCAL ISLANDS FROM TIME TO TIME.
ACROSS THE REGIONAL WATERS...MARINERS CAN EXPECT WINDS UP TO 21 KNOTS
AND SEAS UP TO 7 FEET. A SMALL CRAFT ADVISORY IS IN EFFECT FOR
THE OFF SHORE ATLANTIC WATERS. SMALL BOAT OPERATORS SHOULD
EXERCISE CAUTION ELSEWHERE.
$$
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Re: Caribbean - Centralamerica Weather Thread
Good news for Trinidad. NOW SEEMS THAT ALL THE CARRIBEAN RECEIVED SOME OR VERY HEAVY RAIN.tHE DROUGHT SEASON IS OVER, and the San Juan weather bureau predicted this situation fairly well...
Talking about something rather different that weather,Guys,now this is northern Europa that have a deal with volcanic ash cloud!!!Like us last februarywith Montserrat.This one is a volcano in Island.
Luis,there is a THREAD to follow the situation in Europa? fOR MY PART I FOLOW THE EVOLUTION ON THE bbc
Talking about something rather different that weather,Guys,now this is northern Europa that have a deal with volcanic ash cloud!!!Like us last februarywith Montserrat.This one is a volcano in Island.
Luis,there is a THREAD to follow the situation in Europa? fOR MY PART I FOLOW THE EVOLUTION ON THE bbc
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- Gustywind
- Category 5
- Posts: 12334
- Joined: Mon Sep 03, 2007 7:29 am
- Location: Baie-Mahault, GUADELOUPE
Re: Caribbean - Centralamerica Weather Thread
HUC wrote:Good news for Trinidad. NOW SEEMS THAT ALL THE CARRIBEAN RECEIVED SOME OR VERY HEAVY RAIN.tHE DROUGHT SEASON IS OVER, and the San Juan weather bureau predicted this situation fairly well...
Talking about something rather different that weather,Guys,now this is northern Europa that have a deal with volcanic ash cloud!!!Like us last februarywith Montserrat.This one is a volcano in Island.
Luis,there is a THREAD to follow the situation in Europa? fOR MY PART I FOLOW THE EVOLUTION ON THE bbc
Absolutely HUC interresting thing. Link HUC

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- cycloneye
- Admin
- Posts: 145330
- Age: 68
- Joined: Thu Oct 10, 2002 10:54 am
- Location: San Juan, Puerto Rico
Re: Caribbean - Centralamerica Weather Thread
HUC go here for all the information about the Iceland Volcano.
viewtopic.php?f=67&t=107678&hilit=&p=1975874#p1975874
viewtopic.php?f=67&t=107678&hilit=&p=1975874#p1975874
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- cycloneye
- Admin
- Posts: 145330
- Age: 68
- Joined: Thu Oct 10, 2002 10:54 am
- Location: San Juan, Puerto Rico
Re: Caribbean - Centralamerica Weather Thread
Small Craft Advisory in effect
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
406 PM AST THU APR 15 2010
...HAZARDOUS SEAS AND WINDY CONDITIONS EXPECTED THROUGH THE WEEKEND...
.COLD FRONT WILL PUSH THROUGH THE AREA THIS EVENING. HIGH PRESSURE
WILL BUILD THROUGH THE WEEKEND AND MAINTAIN WINDY CONDITIONS
ACROSS THE WATERS. HIGH PRESSURE MOVES EAST OF THE AREA EARLY NEXT
WEEK WITH DIMINISHING WINDS AND SEAS.
AMZ710-160415-
/O.CON.TJSJ.SC.Y.0031.000000T0000Z-100419T0400Z/
ATLC WATERS OF PUERTO RICO AND USVI FROM 10NM TO 19.5N-
406 PM AST THU APR 15 2010
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT AST
SUNDAY NIGHT...
A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT AST
SUNDAY NIGHT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SMALL CRAFT ADVISORY MEANS THAT WINDS OF 22 TO 33 KNOTS AND
SEAS OF 7 FEET AND GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
MARINE CONDITIONS FOR SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS...SHOULD AVOID
NAVIGATING IN THESE CONDITIONS
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
406 PM AST THU APR 15 2010
...HAZARDOUS SEAS AND WINDY CONDITIONS EXPECTED THROUGH THE WEEKEND...
.COLD FRONT WILL PUSH THROUGH THE AREA THIS EVENING. HIGH PRESSURE
WILL BUILD THROUGH THE WEEKEND AND MAINTAIN WINDY CONDITIONS
ACROSS THE WATERS. HIGH PRESSURE MOVES EAST OF THE AREA EARLY NEXT
WEEK WITH DIMINISHING WINDS AND SEAS.
AMZ710-160415-
/O.CON.TJSJ.SC.Y.0031.000000T0000Z-100419T0400Z/
ATLC WATERS OF PUERTO RICO AND USVI FROM 10NM TO 19.5N-
406 PM AST THU APR 15 2010
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT AST
SUNDAY NIGHT...
A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT AST
SUNDAY NIGHT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SMALL CRAFT ADVISORY MEANS THAT WINDS OF 22 TO 33 KNOTS AND
SEAS OF 7 FEET AND GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
MARINE CONDITIONS FOR SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS...SHOULD AVOID
NAVIGATING IN THESE CONDITIONS
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- Gustywind
- Category 5
- Posts: 12334
- Joined: Mon Sep 03, 2007 7:29 am
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Re: Caribbean - Centralamerica Weather Thread
HUC wrote:Thank's,Luis and Gusty
No problem my friend

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- Gustywind
- Category 5
- Posts: 12334
- Joined: Mon Sep 03, 2007 7:29 am
- Location: Baie-Mahault, GUADELOUPE
Rumors have been propagated today in Guadeloupe concerning another eruption of the Volcano of Soufriere Hills Monsterrat. Meteo-France Guadeloupe confirmed in their latest weather forecast that little ASH have been reported on the island because of the NW direction of the wind. But no eruption has occured with Soufriere Hills, thanks
.
Regards
Gustywind

Regards
Gustywind
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- cycloneye
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Re:
Gustywind wrote:Rumors have been propagated today in Guadeloupe concerning another eruption of the Volcano of Soufriere Hills Monsterrat. Meteo-France Guadeloupe confirmed in their latest weather forecast that little ASH have been reported on the island because of the NW direction of the wind. But no eruption has occured with Soufriere Hills, thanks.
Regards
Gustywind
Go to the Soufriere Volcano thread at the Geology forum for the latest information about the most recent activity of the volcano.
viewtopic.php?f=67&t=107244&p=1975921#p1975921
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- Gustywind
- Category 5
- Posts: 12334
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- Location: Baie-Mahault, GUADELOUPE
Re: Re:
cycloneye wrote:Gustywind wrote:Rumors have been propagated today in Guadeloupe concerning another eruption of the Volcano of Soufriere Hills Monsterrat. Meteo-France Guadeloupe confirmed in their latest weather forecast that little ASH have been reported on the island because of the NW direction of the wind. But no eruption has occured with Soufriere Hills, thanks.
Regards
Gustywind
Go to the Soufriere Volcano thread at the Geology forum for the latest information about the most recent activity of the volcano.
viewtopic.php?f=67&t=107244&p=1975921#p1975921
Thanks Luis, i appreciate this attention


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- cycloneye
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Re: Caribbean - Centralamerica Weather Thread
Updated discussion by NWS San Juan
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN JUAN PR
1000 PM AST THU APR 15 2010
.SYNOPSIS...HIGH PRES WILL BUILD THROUGH THE REST OF THE WEEK WITH
DRIER AND BREEZY CONDITIONS FOR THE WEEKEND. HIGH PRES MOVES TO THE
EAST EARLY NEXT WEEK WITH A RETURN TO MORE HUMID CONDITIONS.
&&
.DISCUSSION...DRIER AIR WILL CONTINUE TO ADVECT IN N WINDS OVERNIGHT
AND THROUGH THE WEEKEND. HOWEVER...ISOLD SHOWERS WILL STILL OCCUR
ALONG THE NORTH SLOPES TONIGHT. HAVE TRENDED POPS DOWNWARD AS
COVERAGE IS PRETTY SMALL. ALSO MADE ADJUSTMENTS TO THE FCST
THROUGH SAT MAINLY TO LOWER POPS AND REMOVE THUNDER AS ATMS LOOKS
PRETTY DRY FOR THE TIME OF THE YEAR ESPECIALLY SAT.
&&
.AVIATION...VFR CONDITIONS WITH JUST VCSH AT JBQ/JSJ/IST. WINDS WILL
BE GUSTY OUT OF THE NOTHEAST 15G20KT XCPT STRONGER AT TIST DUE TO
LOCAL EFFECTS.
&&
.MARINE...SEAS WILL CONTINUE TO BUILD OVERNIGHT AND ARE FCST TO
PEAK AROUND 8 FT TOMORROW IN A COMBINATION OF MODERATE NORTH
SWELLS AND NORTHEAST GENERATED WIND WAVES. SEAS WILL BEGIN TO
SUBSIDE LATE SATURDAY.
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN JUAN PR
1000 PM AST THU APR 15 2010
.SYNOPSIS...HIGH PRES WILL BUILD THROUGH THE REST OF THE WEEK WITH
DRIER AND BREEZY CONDITIONS FOR THE WEEKEND. HIGH PRES MOVES TO THE
EAST EARLY NEXT WEEK WITH A RETURN TO MORE HUMID CONDITIONS.
&&
.DISCUSSION...DRIER AIR WILL CONTINUE TO ADVECT IN N WINDS OVERNIGHT
AND THROUGH THE WEEKEND. HOWEVER...ISOLD SHOWERS WILL STILL OCCUR
ALONG THE NORTH SLOPES TONIGHT. HAVE TRENDED POPS DOWNWARD AS
COVERAGE IS PRETTY SMALL. ALSO MADE ADJUSTMENTS TO THE FCST
THROUGH SAT MAINLY TO LOWER POPS AND REMOVE THUNDER AS ATMS LOOKS
PRETTY DRY FOR THE TIME OF THE YEAR ESPECIALLY SAT.
&&
.AVIATION...VFR CONDITIONS WITH JUST VCSH AT JBQ/JSJ/IST. WINDS WILL
BE GUSTY OUT OF THE NOTHEAST 15G20KT XCPT STRONGER AT TIST DUE TO
LOCAL EFFECTS.
&&
.MARINE...SEAS WILL CONTINUE TO BUILD OVERNIGHT AND ARE FCST TO
PEAK AROUND 8 FT TOMORROW IN A COMBINATION OF MODERATE NORTH
SWELLS AND NORTHEAST GENERATED WIND WAVES. SEAS WILL BEGIN TO
SUBSIDE LATE SATURDAY.
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- tropicana
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Re: Caribbean - Centralamerica Weather Thread
Regional Weather Summary
Thu Apr 15 2010
Today's Highs and rain (if any)
Piarco, C. Trinidad 31.1C 88F 0.1mm * heatwave snapped*
Maraval, West Trinidad 30.0C 86F 41.9mm
Point Lisas, SW Trinidad 72.9mm
Crown Point, Tobago 30.4C 86F trace
Grantley Adams, Barbados 30.8C 87Ftrace
Arnos Vale, St Vincent 32.1C 90F 15.3mm
Hewannora, St Lucia 31.1C 88F
Vigie, St Lucia 31.0C 88F 8.5mm
Melville Hall, Dominica 29.4C 85F 2.5mm
Canefield, Dominica 30.7C 87F
Le Lamentin, Martinique 31.9C 90F 1.6mm
Le Raizet, Guadeloupe 31.1C 88F
Golden Rock, St Kitts 28.7C 84F 7.0mm
VC Bird, Antigua 29.2C 85F 0.7mm
St Thomas, VI 30.0C 86F 0.3mm
St Maarten, VI 29.7C 86F
San Juan, Puerto Rico 28.3C 83F 8.4mm
Norman Manley, Jamaica 31.6C 89F trace
Sangster, Montego Bay, Jamaica 30.5C 87F 1.0mm
Owen Roberts, Grand Cayman 27.6C 82F 10.9mm
Nassau, Bahamas 26.2C 79F
Hamilton, Bermuda 18.0C 65F
Hato, Curacao 31.5C 89F
Queen Beatrix, Aruba 32.8C 91F
Flamingo, Bonaire 31.4C 88F
Thu Apr 15 2010
Today's Highs and rain (if any)
Piarco, C. Trinidad 31.1C 88F 0.1mm * heatwave snapped*
Maraval, West Trinidad 30.0C 86F 41.9mm
Point Lisas, SW Trinidad 72.9mm
Crown Point, Tobago 30.4C 86F trace
Grantley Adams, Barbados 30.8C 87Ftrace
Arnos Vale, St Vincent 32.1C 90F 15.3mm
Hewannora, St Lucia 31.1C 88F
Vigie, St Lucia 31.0C 88F 8.5mm
Melville Hall, Dominica 29.4C 85F 2.5mm
Canefield, Dominica 30.7C 87F
Le Lamentin, Martinique 31.9C 90F 1.6mm
Le Raizet, Guadeloupe 31.1C 88F
Golden Rock, St Kitts 28.7C 84F 7.0mm
VC Bird, Antigua 29.2C 85F 0.7mm
St Thomas, VI 30.0C 86F 0.3mm
St Maarten, VI 29.7C 86F
San Juan, Puerto Rico 28.3C 83F 8.4mm
Norman Manley, Jamaica 31.6C 89F trace
Sangster, Montego Bay, Jamaica 30.5C 87F 1.0mm
Owen Roberts, Grand Cayman 27.6C 82F 10.9mm
Nassau, Bahamas 26.2C 79F
Hamilton, Bermuda 18.0C 65F
Hato, Curacao 31.5C 89F
Queen Beatrix, Aruba 32.8C 91F
Flamingo, Bonaire 31.4C 88F
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- cycloneye
- Admin
- Posts: 145330
- Age: 68
- Joined: Thu Oct 10, 2002 10:54 am
- Location: San Juan, Puerto Rico
Re: Caribbean - Centralamerica Weather Thread
Good morning to all.All indications are that next week will be another wet one in the Eastern Caribbean so be aware for that.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
531 AM AST FRI APR 16 2010
.SYNOPSIS...A MID TO UPPER LEVEL RIDGE WILL BUILD SLOWLY INTO THE
LOCAL AREA THROUGH THE WEEKEND...RESULTING IN A GENERALLY FAIR
AND MAINLY DRY WEATHER PATTERN ACROSS THE LOCAL ISLANDS.
&&
.DISCUSSION...AFOREMENTIONED MID TO UPPER LEVEL RIDGE AND
ASSOCIATED SUBSIDENCE WILL COMBINE WITH AN OVERALL DRIER AND MORE
STABLE AIR MASS...TO PRODUCE A GENERALLY FAIR AND MAINLY DRY
WEATHER PATTERN ACROSS THE LOCAL ISLANDS FOR THE NEXT FEW DAYS.
HOWEVER...BANDS AND PATCHES OF MOISTURE WILL CONTINUE TO MOVE
ACROSS THE LOCAL AREA FROM TIME TO TIME...RESULTING IN BRIEF
INTERVALS OF CLOUDINESS AND A FEW SHOWERS. LOOKING AHEAD...IT
APPEARS THAT MOISTURE WILL BEGIN TO INCREASE AGAIN DURING THE
EARLY TO MID PART OF NEXT WEEK AND THERE MAY ALSO BE AN
APPROACHING OLD FRONTAL BOUNDARY OR SURFACE TROUGH AS WELL.
SO...WE SHOULD EVENTUALLY SEE A BIT MORE UNSETTLED WEATHER
PATTERN UNFOLD.
&&
.AVIATION...PREVAILING VFR CONDITIONS WILL CONTINUE ACROSS THE
LOCAL ISLANDS AND AT ALL LOCAL TAF SITES FOR THE NEXT 24 HOURS.
HOWEVER...BRIEF MVFR CONDITIONS ARE POSSIBLE IN ISOLATED TO
LOCALLY SCATTERED PASSING SHOWERS. IN ADDITION...SURFACE WIND
GUSTS TO AROUND 25 KNOTS WILL CONTINUE TODAY...ESPECIALLY NEAR
TIST AND TJBQ.
&&
.MARINE...EXPECT A MODERATE TO STRONG TRADE WIND FLOW AND ROUGH
AND HAZARDOUS SEAS ACROSS MOST OF THE LOCAL WATERS THROUGH THE
WEEKEND. A SMALL CRAFT ADVISORY IS IN EFFECT FOR MOST OF THE LOCAL
COASTAL WATERS TODAY.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
531 AM AST FRI APR 16 2010
.SYNOPSIS...A MID TO UPPER LEVEL RIDGE WILL BUILD SLOWLY INTO THE
LOCAL AREA THROUGH THE WEEKEND...RESULTING IN A GENERALLY FAIR
AND MAINLY DRY WEATHER PATTERN ACROSS THE LOCAL ISLANDS.
&&
.DISCUSSION...AFOREMENTIONED MID TO UPPER LEVEL RIDGE AND
ASSOCIATED SUBSIDENCE WILL COMBINE WITH AN OVERALL DRIER AND MORE
STABLE AIR MASS...TO PRODUCE A GENERALLY FAIR AND MAINLY DRY
WEATHER PATTERN ACROSS THE LOCAL ISLANDS FOR THE NEXT FEW DAYS.
HOWEVER...BANDS AND PATCHES OF MOISTURE WILL CONTINUE TO MOVE
ACROSS THE LOCAL AREA FROM TIME TO TIME...RESULTING IN BRIEF
INTERVALS OF CLOUDINESS AND A FEW SHOWERS. LOOKING AHEAD...IT
APPEARS THAT MOISTURE WILL BEGIN TO INCREASE AGAIN DURING THE
EARLY TO MID PART OF NEXT WEEK AND THERE MAY ALSO BE AN
APPROACHING OLD FRONTAL BOUNDARY OR SURFACE TROUGH AS WELL.
SO...WE SHOULD EVENTUALLY SEE A BIT MORE UNSETTLED WEATHER
PATTERN UNFOLD.
&&
.AVIATION...PREVAILING VFR CONDITIONS WILL CONTINUE ACROSS THE
LOCAL ISLANDS AND AT ALL LOCAL TAF SITES FOR THE NEXT 24 HOURS.
HOWEVER...BRIEF MVFR CONDITIONS ARE POSSIBLE IN ISOLATED TO
LOCALLY SCATTERED PASSING SHOWERS. IN ADDITION...SURFACE WIND
GUSTS TO AROUND 25 KNOTS WILL CONTINUE TODAY...ESPECIALLY NEAR
TIST AND TJBQ.
&&
.MARINE...EXPECT A MODERATE TO STRONG TRADE WIND FLOW AND ROUGH
AND HAZARDOUS SEAS ACROSS MOST OF THE LOCAL WATERS THROUGH THE
WEEKEND. A SMALL CRAFT ADVISORY IS IN EFFECT FOR MOST OF THE LOCAL
COASTAL WATERS TODAY.
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- tropicana
- Category 5
- Posts: 8056
- Joined: Sat Sep 27, 2003 6:48 pm
- Location: Niagara Falls, Ontario, Canada
- Contact:
Re: Caribbean - Centralamerica Weather Thread
Reports of very heavy showers and thunderstorms over SW Trinidad again this morning, and an area of strong thunderstorms just to the east of Trinidad/Tobago, affecting the island of Tobago at this hour.
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Re: Caribbean - Centralamerica Weather Thread
they surely need the rain. I just hope they don't get too much at one time which can cause problems.
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Too many hurricanes to remember
- cycloneye
- Admin
- Posts: 145330
- Age: 68
- Joined: Thu Oct 10, 2002 10:54 am
- Location: San Juan, Puerto Rico
Re: Caribbean - Centralamerica Weather Thread
Afternoon discussion by NWS San Juan
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
347 PM AST FRI APR 16 2010
.SYNOPSIS...AT UPPER LEVELS...WEAK TROUGHINESS TO THE EAST
NORTHEAST OF PUERTO RICO WILL MOVE EAST AND ALLOW A RIDGE TO BUILD
IN THE TROPICAL ATLANTIC NEXT WEEK. A WEAK TROUGH WILL PASS NORTH
OF THE AREA WEDNESDAY NIGHT FOLLOWED BY A SLIGHTLY STRONGER TROUGH
FRIDAY NIGHT.
AT MID LEVELS...HIGH PRESSURE OVER THE TROPICAL ATLANTIC DOMINATES
THE CARIBBEAN AS WELL FOR MOST OF THE PERIOD. A STRONG AND BROAD
LONG WAVE TROUGH DIGS INTO THE AREA A WEEK FROM TOMORROW...ON SATURDAY.
AT LOWER LEVELS...HIGH PRESSURE IS STILL BUILDING OVER THE
WESTERN ATLANTIC WEST OF GEORGIA AND FLORIDA AND FORCING AIR
ALMOST DIRECTLY SOUTH OVER PUERTO RICO AND THE U.S VIRGIN ISLANDS.
THIS IS BRINGING BREEZY CONDITIONS TO THE ISLANDS AND SOME SHOWERS
ON THE WINDWARD SIDE OF PUERTO RICO AND A FEW VERY LIGHT SHOWERS
TO THE U.S. VIRGIN ISLANDS. AS THE HIGH MOVES EAST SOUTHEAST THE
WINDS WILL DIMINISH BUT MOISTURE WILL RETURN SUNDAY AND MONDAY AND
REMAIN FOR THE REST OF THE WEEK BRINGING SCATTERED SHOWER
ACTIVITY.
&&
.DISCUSSION...SHOWERS FORMED ALONG THE WINDWARD SIDE OF PUERTO
RICO THIS MORNING AND IN THE OPPOSITE CORNER DURING THE
AFTERNOON...BUT AMOUNTS WERE GENERALLY LIGHT. A FEW SHOWERS LEFT
TRACES IN THE U.S. VIRGIN ISLANDS. TONIGHT NORTHEAST FLOW WILL
BRING PATCHES OF MOISTURE ACROSS THE AREA AND SOME CHANCES OF
SHOWERS. THE GFS SHOWS MOISTURE RETURNING FROM THE SOUTHEAST WITH
A BOUNDARY THAT PASSED THROUGH EARLIER SUNDAY AND SUNDAY
NIGHT...ALTHOUGH THE NAM SHOWS THIS MOISTURE REMAINING A LITTLE
FARTHER SOUTH. SINCE SOME MOISTURE IS PRESENT EXPECT ISOLATED TO
SCATTERED SHOWERS ON THE WINDWARD SIDES OF PUERTO RICO SUNDAY. AS
SURFACE FLOW TURNS MORE SOUTHEAST NEXT WEEK TEMPERATURES ON THE
NORTH COAST BEGIN TO RISE AND MOISTURE PRESENT IN THE CARIBBEAN
MAKES ITS PRESENCE FELT WITH CONTINUED SCATTERED SHOWERS MAINLY IN
THE SOUTHEAST AND EAST IN THE EARLY MORNINGS AND THE WEST AND
NORTHWEST IN THE AFTERNOONS. LIGHT WINDS AT LOWER LEVELS AND
BETTER HEATING SHOULD BRING HEAVIER SHOWERS MID AND LATE WEEK NEXT
WEEK AND URBAN AND SMALL STREAM FLOODING CANNOT BE RULED OUT
THEN...MAINLY IN THE INTERIOR REGIONS OF PUERTO RICO.
&&
.AVIATION...
VFR CONDS SHOULD PREVAIL ACROSS ALL TAF SITES...WITH A
PREVAILING NORTH NORTHEASTERLY LLVL WIND FLOW AT 15 TO 20 KTS...AND
GUSTS TO AROUND 25 KNOTS...ESPECIALLY NEAR TIST AND TJBQ. BRIEF
PERIODS OF MVFR CONDITIONS ARE POSSIBLE IN PASSING SHOWERS.
&&
.MARINE...SEAS WILL BEGIN TO COME DOWN WITH THE WINDS ON SUNDAY
AND SMALL CRAFT ADVISORIES WILL COME DOWN ON MONDAY. LIGHTER WINDS
AND ONLY WEAK SWELL FROM PASSING MID LATITUDE LOWS WILL LEAD
TO IMPROVED CONDITIONS ALL OF NEXT WEEK...WITH NO SMALL CRAFT
ADVISORIES EXPECTED AT THIS TIME EITHER IN THE ATLANTIC OR THE CARIBBEAN.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
347 PM AST FRI APR 16 2010
.SYNOPSIS...AT UPPER LEVELS...WEAK TROUGHINESS TO THE EAST
NORTHEAST OF PUERTO RICO WILL MOVE EAST AND ALLOW A RIDGE TO BUILD
IN THE TROPICAL ATLANTIC NEXT WEEK. A WEAK TROUGH WILL PASS NORTH
OF THE AREA WEDNESDAY NIGHT FOLLOWED BY A SLIGHTLY STRONGER TROUGH
FRIDAY NIGHT.
AT MID LEVELS...HIGH PRESSURE OVER THE TROPICAL ATLANTIC DOMINATES
THE CARIBBEAN AS WELL FOR MOST OF THE PERIOD. A STRONG AND BROAD
LONG WAVE TROUGH DIGS INTO THE AREA A WEEK FROM TOMORROW...ON SATURDAY.
AT LOWER LEVELS...HIGH PRESSURE IS STILL BUILDING OVER THE
WESTERN ATLANTIC WEST OF GEORGIA AND FLORIDA AND FORCING AIR
ALMOST DIRECTLY SOUTH OVER PUERTO RICO AND THE U.S VIRGIN ISLANDS.
THIS IS BRINGING BREEZY CONDITIONS TO THE ISLANDS AND SOME SHOWERS
ON THE WINDWARD SIDE OF PUERTO RICO AND A FEW VERY LIGHT SHOWERS
TO THE U.S. VIRGIN ISLANDS. AS THE HIGH MOVES EAST SOUTHEAST THE
WINDS WILL DIMINISH BUT MOISTURE WILL RETURN SUNDAY AND MONDAY AND
REMAIN FOR THE REST OF THE WEEK BRINGING SCATTERED SHOWER
ACTIVITY.
&&
.DISCUSSION...SHOWERS FORMED ALONG THE WINDWARD SIDE OF PUERTO
RICO THIS MORNING AND IN THE OPPOSITE CORNER DURING THE
AFTERNOON...BUT AMOUNTS WERE GENERALLY LIGHT. A FEW SHOWERS LEFT
TRACES IN THE U.S. VIRGIN ISLANDS. TONIGHT NORTHEAST FLOW WILL
BRING PATCHES OF MOISTURE ACROSS THE AREA AND SOME CHANCES OF
SHOWERS. THE GFS SHOWS MOISTURE RETURNING FROM THE SOUTHEAST WITH
A BOUNDARY THAT PASSED THROUGH EARLIER SUNDAY AND SUNDAY
NIGHT...ALTHOUGH THE NAM SHOWS THIS MOISTURE REMAINING A LITTLE
FARTHER SOUTH. SINCE SOME MOISTURE IS PRESENT EXPECT ISOLATED TO
SCATTERED SHOWERS ON THE WINDWARD SIDES OF PUERTO RICO SUNDAY. AS
SURFACE FLOW TURNS MORE SOUTHEAST NEXT WEEK TEMPERATURES ON THE
NORTH COAST BEGIN TO RISE AND MOISTURE PRESENT IN THE CARIBBEAN
MAKES ITS PRESENCE FELT WITH CONTINUED SCATTERED SHOWERS MAINLY IN
THE SOUTHEAST AND EAST IN THE EARLY MORNINGS AND THE WEST AND
NORTHWEST IN THE AFTERNOONS. LIGHT WINDS AT LOWER LEVELS AND
BETTER HEATING SHOULD BRING HEAVIER SHOWERS MID AND LATE WEEK NEXT
WEEK AND URBAN AND SMALL STREAM FLOODING CANNOT BE RULED OUT
THEN...MAINLY IN THE INTERIOR REGIONS OF PUERTO RICO.
&&
.AVIATION...
VFR CONDS SHOULD PREVAIL ACROSS ALL TAF SITES...WITH A
PREVAILING NORTH NORTHEASTERLY LLVL WIND FLOW AT 15 TO 20 KTS...AND
GUSTS TO AROUND 25 KNOTS...ESPECIALLY NEAR TIST AND TJBQ. BRIEF
PERIODS OF MVFR CONDITIONS ARE POSSIBLE IN PASSING SHOWERS.
&&
.MARINE...SEAS WILL BEGIN TO COME DOWN WITH THE WINDS ON SUNDAY
AND SMALL CRAFT ADVISORIES WILL COME DOWN ON MONDAY. LIGHTER WINDS
AND ONLY WEAK SWELL FROM PASSING MID LATITUDE LOWS WILL LEAD
TO IMPROVED CONDITIONS ALL OF NEXT WEEK...WITH NO SMALL CRAFT
ADVISORIES EXPECTED AT THIS TIME EITHER IN THE ATLANTIC OR THE CARIBBEAN.
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and observations from Caribbean basin members Click Here
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