ATL: HELENE - Post-Tropical

Moderator: S2k Moderators

Message
Author
User avatar
Gustywind
Category 5
Category 5
Posts: 12334
Joined: Mon Sep 03, 2007 7:29 am
Location: Baie-Mahault, GUADELOUPE

#701 Postby Gustywind » Sat Aug 11, 2012 5:22 am

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
205 AM EDT SAT AUG 11 2012

TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL
AMERICA...GULF OF MEXICO...CARIBBEAN SEA...NORTHERN SECTIONS
OF SOUTH AMERICA...AND ATLANTIC OCEAN TO THE AFRICAN COAST
FROM THE EQUATOR TO 32N. THE FOLLOWING INFORMATION IS BASED
ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND
METEOROLOGICAL ANALYSIS.

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
0515 UTC.

...SPECIAL FEATURE...

TROPICAL DEPRESSION SEVEN IS CENTERED NEAR 13.9N 55.2W AT
11/0300 UTC OR ABOUT 256 NM E OF BARBADOS AND ABOUT 340 NM E OF
MARTINIQUE MOVING W AT 21 KT. ESTIMATED MINIMUM CENTRAL PRESSURE
IS 1009 MB. MAXIMUM SUSTAINED WIND SPEED IS 30 KT WITH GUSTS TO
40 KT. SEE LATEST NHC PUBLIC ADVISORY UNDER AWIPS/WMO HEADERS
MIATCPAT2/WTNT32 KNHC AND NHC FORECAST/ADVISORY UNDER AWIPS/WMO
HEADERS MIATCMAT2/WTNT22 KNHC FOR MORE DETAILS. SCATTERED
MODERATE/STRONG CONVECTION IS FROM 12N-15N BETWEEN 53W-56W.
SCATTERED SHOWERS/ISOLATED THUNDERSTORMS DOT THE AREA FROM
10N-15N BETWEEN 51W-59W.
0 likes   

User avatar
Gustywind
Category 5
Category 5
Posts: 12334
Joined: Mon Sep 03, 2007 7:29 am
Location: Baie-Mahault, GUADELOUPE

#702 Postby Gustywind » Sat Aug 11, 2012 5:28 am

000
WTNT32 KNHC 110833
TCPAT2

BULLETIN
TROPICAL DEPRESSION SEVEN ADVISORY NUMBER 7
NWS NATIONAL HURRICANE CENTER MIAMI FL AL072012
500 AM AST SAT AUG 11 2012

...TROPICAL DEPRESSION CONTINUES MOVING RAPIDLY WESTWARD...HURRICANE
HUNTER AIRCRAFT TO INVESTIGATE LATER THIS MORNING...


SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...14.0N 56.1W
ABOUT 235 MI...380 KM ENE OF BARBADOS
ABOUT 330 MI...535 KM E OF MARTINIQUE
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...W OR 275 DEGREES AT 24 MPH...39 KM/H
MINIMUM CENTRAL PRESSURE...1009 MB...29.80 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* GUADELOUPE AND MARTINIQUE
* DOMINICA
* ST. LUCIA
* BARBADOS
* ST. VINCENT AND THE GRENADINES

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...IN THIS CASE IN 12 TO 24 HOURS.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 500 AM AST...0900 UTC...THE CENTER OF TROPICAL DEPRESSION SEVEN
WAS LOCATED NEAR LATITUDE 14.0 NORTH...LONGITUDE 56.1 WEST. THE
DEPRESSION IS MOVING TOWARD THE WEST NEAR 24 MPH...39 KM/H...AND
THIS GENERAL MOTION IS EXPECTED TO CONTINUE THROUGH SUNDAY. ON THE
FORECAST TRACK...THE DEPRESSION IS EXPECTED TO MOVE THROUGH THE
WINDWARD ISLANDS LATER THIS AFTERNOON OR TONIGHT.

MAXIMUM SUSTAINED WINDS ARE NEAR 35 MPH...55 KM/H...WITH HIGHER
GUSTS. SOME STRENGTHENING IS POSSIBLE OVER THE NEXT DAY OR SO...AND
THE DEPRESSION COULD BECOME A TROPICAL STORM BEFORE REACHING THE
WINDWARD ISLANDS. AFTER PASSING THE WINDWARD ISLANDS...THE SYSTEM
IS FORECAST TO DISSIPATE SUNDAY NIGHT OR MONDAY AS IT ENCOUNTERS
UNFAVORABLE UPPER-LEVEL WINDS.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 1009 MB...29.80 INCHES.


HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA
LATER TODAY AND TONIGHT.

RAINFALL...TOTAL RAINFALL ACCUMULATIONS OF 1 TO 2 INCHES WITH
ISOLATED MAXIMUM AMOUNTS OF 3 INCHES ARE EXPECTED ACROSS PORTIONS
OF THE LESSER ANTILLES TODAY.


NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...800 AM AST.
NEXT COMPLETE ADVISORY...1100 AM AST.

$$
FORECASTER BEVEN


000
WTNT22 KNHC 110833
TCMAT2

TROPICAL DEPRESSION SEVEN FORECAST/ADVISORY NUMBER 7
NWS NATIONAL HURRICANE CENTER MIAMI FL AL072012
0900 UTC SAT AUG 11 2012

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* GUADELOUPE AND MARTINIQUE
* DOMINICA
* ST. LUCIA
* BARBADOS
* ST. VINCENT AND THE GRENADINES

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...IN THIS CASE IN 12 TO 24 HOURS.

TROPICAL DEPRESSION CENTER LOCATED NEAR 14.0N 56.1W AT 11/0900Z
POSITION ACCURATE WITHIN 30 NM

PRESENT MOVEMENT TOWARD THE WEST OR 275 DEGREES AT 21 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1009 MB
MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.

REPEAT...CENTER LOCATED NEAR 14.0N 56.1W AT 11/0900Z
AT 11/0600Z CENTER WAS LOCATED NEAR 13.9N 55.1W

FORECAST VALID 11/1800Z 14.2N 59.4W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 40NE 0SE 0SW 40NW.

FORECAST VALID 12/0600Z 14.4N 63.5W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 40NE 0SE 0SW 40NW.

FORECAST VALID 12/1800Z 14.6N 67.6W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 40NE 0SE 0SW 40NW.

FORECAST VALID 13/0600Z...DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 14.0N 56.1W

NEXT ADVISORY AT 11/1500Z

$$
FORECASTER BEVEN

000
WTNT42 KNHC 110833
TCDAT2

TROPICAL DEPRESSION SEVEN DISCUSSION NUMBER 7
NWS NATIONAL HURRICANE CENTER MIAMI FL AL072012
500 AM AST SAT AUG 11 2012

THERE HAS BEEN SOME ADDITIONAL INCREASE IN CONVECTION NEAR AND SOUTH
OF THE CENTER OF TROPICAL DEPRESSION SEVEN DURING THE PAST FEW
HOURS. HOWEVER...THE SYSTEM REMAINS DISORGANIZED...AND IT IS
UNCLEAR IF A CLOSED CIRCULATION STILL EXISTS DUE TO THE RAPID
WESTWARD MOTION. THE INITIAL INTENSITY REMAINS 30 KT BASED ON A
30 KT SATELLITE INTENSITY ESTIMATE FROM TAFB AND CONTINUITY FROM THE
PREVIOUS ADVISORY. AN AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT
IS SCHEDULED TO INVESTIGATE THE SYSTEM LATER THIS MORNING.

THE INITIAL MOTION REMAINS A RAPID 275/21. THIS MOTION IS EXPECTED
TO CONTINUE THROUGH DISSIPATION AS THE TROPICAL CYCLONE IS STEERED
BY THE ATLANTIC SUBTROPICAL RIDGE TO THE NORTH. THE NEW NHC TRACK
FORECAST IS AGAIN AN UPDATE OF THE PREVIOUS ONE AND LIES CLOSE TO
THE VARIOUS CONSENSUS MODELS.

THE UPPER-LEVEL WINDS ARE MARGINALLY FAVORABLE FOR STRENGTHENING FOR
THE NEXT 12 HR OR SO...AND THE DEPRESSION COULD BECOME A TROPICAL
STORM DURING THAT TIME. AFTER THAT...THE SYSTEM IS FORECAST TO
ENCOUNTER STRONG SOUTHWESTERLY VERTICAL WIND SHEAR...WHICH SHOULD
CAUSE IT TO WEAKEN AND DISSIPATE AS FORECAST BY THE DYNAMICAL MODEL
GUIDANCE. THE NEW FORECAST NOW CALLS FOR DISSIPATION NEAR THE
48 HR POINT.

GIVEN THE CONTINUING UNCERTAINTY AS TO WHETHER THE DEPRESSION WILL
BECOME A TROPICAL STORM...TROPICAL STORM WATCHES CONTINUE FOR PART
OF THE LESSER ANTILLES...EVEN THOUGH TROPICAL STORM CONDITIONS
WOULD REACH THOSE LOCATIONS WITHIN THE NEXT 12 TO 24 HOURS.

FORECAST POSITIONS AND MAX WINDS

INIT 11/0900Z 14.0N 56.1W 30 KT 35 MPH
12H 11/1800Z 14.2N 59.4W 35 KT 40 MPH
24H 12/0600Z 14.4N 63.5W 35 KT 40 MPH
36H 12/1800Z 14.6N 67.6W 35 KT 40 MPH
48H 13/0600Z...DISSIPATED

$$
FORECASTER BEVEN
0 likes   

Sanibel
Category 5
Category 5
Posts: 10375
Joined: Mon Aug 30, 2004 11:06 pm
Location: Offshore SW Florida

Re: ATL: SEVEN - Tropical Depression

#703 Postby Sanibel » Sat Aug 11, 2012 5:47 am

Wow, it's dark here at 6am. Wake up and smell the cyclone. Better form this morning, but still showing a diagonal linear wave axis. Also I think the center spiral is not as strong as Ernesto.

Still gambling it survives and develops further along.
0 likes   

User avatar
TheBurn
Category 2
Category 2
Posts: 540
Joined: Thu Jul 28, 2005 4:00 pm
Location: Rincon, PR

Re: ATL: SEVEN - Tropical Depression

#704 Postby TheBurn » Sat Aug 11, 2012 6:10 am

10:00 UTC RGB Natural Color

Image
0 likes   

Aric Dunn
Category 5
Category 5
Posts: 21238
Age: 42
Joined: Sun Sep 19, 2004 9:58 pm
Location: Ready for the Chase.
Contact:

#705 Postby Aric Dunn » Sat Aug 11, 2012 6:11 am

when does recon take off?
0 likes   
Note: If I make a post that is brief. Please refer back to previous posts for the analysis or reasoning. I do not re-write/qoute what my initial post said each time.
If there is nothing before... then just ask :)

Space & Atmospheric Physicist, Embry-Riddle Aeronautical University,
I believe the sky is falling...

User avatar
Gustywind
Category 5
Category 5
Posts: 12334
Joined: Mon Sep 03, 2007 7:29 am
Location: Baie-Mahault, GUADELOUPE

#706 Postby Gustywind » Sat Aug 11, 2012 6:17 am

Hi Aric :). What are your latest "forecasts" on DT 7? Do you tkink that D7 could be a TS could berfore crossing the islands? What island is of more concerned? Thanks to you :D
0 likes   

Aric Dunn
Category 5
Category 5
Posts: 21238
Age: 42
Joined: Sun Sep 19, 2004 9:58 pm
Location: Ready for the Chase.
Contact:

#707 Postby Aric Dunn » Sat Aug 11, 2012 6:24 am

it could make it to ts if the circ is still closed. dont think any island is at risk of much just heavy rain .
0 likes   
Note: If I make a post that is brief. Please refer back to previous posts for the analysis or reasoning. I do not re-write/qoute what my initial post said each time.
If there is nothing before... then just ask :)

Space & Atmospheric Physicist, Embry-Riddle Aeronautical University,
I believe the sky is falling...

Sanibel
Category 5
Category 5
Posts: 10375
Joined: Mon Aug 30, 2004 11:06 pm
Location: Offshore SW Florida

Re: ATL: SEVEN - Tropical Depression

#708 Postby Sanibel » Sat Aug 11, 2012 6:30 am

I think the structure is better but the convection is only bursting warm tops. Shear bait for sure but the remnant center might survive in a weak form and bloom further west.
0 likes   

User avatar
TheEuropean
Professional-Met
Professional-Met
Posts: 1796
Age: 59
Joined: Tue Sep 20, 2005 3:17 pm
Location: Voerde, Germany
Contact:

ATL: HELENE - Recon

#709 Postby TheEuropean » Sat Aug 11, 2012 6:37 am

Tropical Depression Seven (07L) Recon Archive
--------------------------------------------
Link to decoder - viewtopic.php?f=29&t=85603
Click link to jump to beginning of mission
Mission 1 - USAF - 11 August 12z - Highest FL winds: 37kt - Lowest Pressure: 1011mb
Mission 2 - USAF - 17 August 20z


000
URNT15 KNHC 111125
AF307 0107A CYCLONE HDOB 12 20120811
111630 1447N 05800W 9772 00308 0120 +241 +224 065034 035 028 002 00
111700 1446N 05759W 9770 00310 0119 +240 +224 066033 034 028 001 00
111730 1445N 05758W 9771 00306 0120 +236 +230 064032 033 030 002 00
111800 1444N 05757W 9774 00304 0119 +241 +226 064034 034 030 001 00
111830 1443N 05756W 9767 00312 0119 +239 +230 061032 034 029 001 00
111900 1442N 05755W 9772 00306 0119 +240 +229 063033 034 029 001 00
111930 1441N 05754W 9763 00313 0118 +239 +234 061030 032 030 002 00
112000 1440N 05752W 9773 00305 0117 +240 +236 059029 031 029 003 00
112030 1439N 05751W 9771 00305 0117 +240 +233 058031 032 027 000 00
112100 1438N 05750W 9767 00309 0117 +240 +237 056029 030 027 002 00
112130 1437N 05749W 9773 00303 0116 +240 +234 058030 032 027 001 00
112200 1436N 05748W 9773 00304 0116 +244 +232 060030 031 028 002 00
112230 1435N 05747W 9769 00308 0116 +241 +231 062031 031 028 002 00
112300 1434N 05746W 9773 00303 0116 +242 +232 064030 032 026 002 00
112330 1433N 05745W 9774 00302 0116 +244 +232 064030 031 029 001 00
112400 1432N 05744W 9773 00305 0116 +244 +229 063029 031 029 001 00
112430 1431N 05743W 9767 00310 0116 +241 +230 066029 030 028 002 00
112500 1430N 05742W 9769 00309 0117 +240 +232 066028 029 028 000 00
112530 1429N 05741W 9773 00304 0117 +242 +232 069030 032 028 002 00
112600 1428N 05740W 9769 00309 0117 +240 +232 073031 033 031 003 00
0 likes   

User avatar
TheEuropean
Professional-Met
Professional-Met
Posts: 1796
Age: 59
Joined: Tue Sep 20, 2005 3:17 pm
Location: Voerde, Germany
Contact:

#710 Postby TheEuropean » Sat Aug 11, 2012 6:40 am

000
URNT15 KNHC 111135
AF307 0107A CYCLONE HDOB 13 20120811
112630 1427N 05739W 9772 00306 0117 +240 +225 071034 037 031 002 00
112700 1426N 05738W 9766 00310 0117 +240 +229 072033 037 033 001 00
112730 1424N 05737W 9770 00307 0117 +240 +230 073032 033 031 003 00
112800 1423N 05736W 9771 00305 0116 +240 +231 072032 034 030 003 00
112830 1422N 05735W 9771 00305 0115 +240 +228 071032 033 030 004 00
112900 1421N 05734W 9771 00305 0115 +240 +224 069031 032 030 001 00
112930 1420N 05732W 9771 00304 0115 +237 +227 067032 033 029 003 00
113000 1419N 05731W 9771 00305 0115 +236 +227 070031 032 030 002 00
113030 1418N 05730W 9766 00307 0114 +235 +233 071029 032 029 001 00
113100 1417N 05729W 9773 00303 0115 +237 +231 074031 032 031 002 00
113130 1416N 05728W 9768 00307 0115 +235 +235 075031 033 032 002 00
113200 1415N 05727W 9771 00305 0116 +235 +230 079032 032 030 001 00
113230 1414N 05726W 9767 00308 0117 +220 +220 100028 033 031 002 01
113300 1413N 05725W 9784 00294 0117 +222 +221 114029 030 031 002 03
113330 1412N 05726W 9772 00304 0118 +210 +210 116028 030 028 002 01
113400 1410N 05726W 9769 00306 0117 +220 +220 115026 028 026 001 01
113430 1409N 05726W 9766 00306 0117 +220 +220 114024 026 024 001 01
113500 1407N 05726W 9772 00302 0116 +220 +220 115022 025 018 002 01
113530 1406N 05726W 9770 00304 0116 +220 +220 117020 022 018 003 01
113600 1404N 05727W 9768 00305 0116 +220 +220 119019 020 018 002 01
0 likes   

jinftl
Category 5
Category 5
Posts: 4312
Joined: Tue Aug 31, 2004 4:47 pm
Location: fort lauderdale, fl

Re: ATL: SEVEN - Tropical Depression

#711 Postby jinftl » Sat Aug 11, 2012 6:50 am

Untrained observation/question - is convection maybe trying to build on west and southwest side? I am probably pushing it i know!!!

Image
0 likes   

User avatar
TheEuropean
Professional-Met
Professional-Met
Posts: 1796
Age: 59
Joined: Tue Sep 20, 2005 3:17 pm
Location: Voerde, Germany
Contact:

#712 Postby TheEuropean » Sat Aug 11, 2012 6:55 am

000
URNT15 KNHC 111145
AF307 0107A CYCLONE HDOB 14 20120811
113630 1403N 05727W 9772 00304 0116 +220 +220 124019 020 021 002 01
113700 1402N 05727W 9772 00302 0116 +210 +210 127019 020 024 004 05
113730 1400N 05727W 9767 00305 0116 +210 +210 124019 019 024 003 01
113800 1359N 05727W 9773 00300 0115 +221 +217 124017 018 021 004 00
113830 1357N 05726W 9768 00306 0115 +232 +202 143018 018 016 002 00
113900 1356N 05726W 9768 00307 0115 +239 +192 142015 017 016 005 00
113930 1354N 05726W 9774 00303 0120 +224 +203 116015 017 015 006 03
114000 1353N 05726W 9767 00310 0119 +223 +201 105015 016 018 004 00
114030 1351N 05726W 9770 00306 0120 +223 +201 111016 016 013 003 00
114100 1350N 05726W 9772 00305 0119 +221 +206 121013 016 012 003 00
114130 1348N 05726W 9768 00307 0118 +222 +208 117009 010 012 001 00
114200 1347N 05726W 9773 00303 0117 +230 +199 120009 010 010 003 00
114230 1345N 05726W 9769 00304 0116 +228 +204 108008 009 008 002 00
114300 1344N 05726W 9768 00307 0118 +225 +214 105010 012 011 002 00
114330 1342N 05727W 9777 00298 0117 +225 +217 102013 015 012 002 03
114400 1342N 05728W 9767 00307 0116 +233 +197 100014 015 009 003 00
114430 1341N 05730W 9769 00304 0114 +243 +186 098011 012 007 003 00
114500 1341N 05731W 9772 00301 0113 +243 +197 093011 013 007 004 00
114530 1340N 05733W 9769 00304 0113 +240 +196 089012 013 006 004 00
114600 1340N 05735W 9772 00301 0113 +241 +193 088013 014 009 004 00
0 likes   

User avatar
TheEuropean
Professional-Met
Professional-Met
Posts: 1796
Age: 59
Joined: Tue Sep 20, 2005 3:17 pm
Location: Voerde, Germany
Contact:

#713 Postby TheEuropean » Sat Aug 11, 2012 7:01 am

000
URNT15 KNHC 111155
AF307 0107A CYCLONE HDOB 15 20120811
114630 1339N 05736W 9766 00305 0112 +242 +195 088015 015 010 003 00
114700 1339N 05738W 9772 00299 0112 +240 +193 084015 016 015 002 03
114730 1338N 05740W 9772 00299 0111 +239 +198 075016 018 015 002 00
114800 1338N 05741W 9771 00300 0110 +237 +213 064018 019 014 002 00
114830 1338N 05743W 9763 00306 0110 +234 +224 061017 018 011 005 00
114900 1337N 05745W 9769 00301 0109 +240 +218 056021 024 022 001 00
114930 1337N 05747W 9773 00297 0109 +244 +210 048024 024 021 001 00
115000 1337N 05748W 9769 00301 0110 +245 +214 049022 024 020 001 00
115030 1336N 05750W 9770 00301 0110 +243 +212 049021 021 014 004 00
115100 1336N 05752W 9772 00299 0110 +244 +214 050022 023 013 003 00
115130 1336N 05754W 9769 00301 0110 +245 +214 051024 024 014 002 00
115200 1335N 05755W 9772 00299 0109 +246 +213 046022 023 019 002 00
115230 1335N 05757W 9769 00300 0108 +248 +212 044023 024 016 002 00
115300 1335N 05759W 9772 00299 0108 +247 +215 039024 025 018 003 00
115330 1335N 05800W 9770 00299 0108 +249 +212 042024 025 018 003 00
115400 1335N 05802W 9767 00301 0108 +250 +203 041022 024 019 003 00
115430 1335N 05804W 9771 00300 0109 +249 +202 036021 023 019 002 00
115500 1335N 05806W 9767 00304 0110 +250 +209 041023 027 022 003 00
115530 1335N 05807W 9769 00304 0113 +243 +217 039027 028 019 003 00
115600 1335N 05809W 9769 00304 0114 +241 +223 040025 028 018 001 00
0 likes   

User avatar
Gustywind
Category 5
Category 5
Posts: 12334
Joined: Mon Sep 03, 2007 7:29 am
Location: Baie-Mahault, GUADELOUPE

#714 Postby Gustywind » Sat Aug 11, 2012 7:06 am

000
WTNT32 KNHC 111158
TCPAT2

BULLETIN
TROPICAL DEPRESSION SEVEN INTERMEDIATE ADVISORY NUMBER 7A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL072012
800 AM AST SAT AUG 11 2012

...TROPICAL DEPRESSION APPROACHING THE WINDWARD ISLANDS...HURRICANE
HUNTER AIRCRAFT CURRENTLY INVESTIGATING THE SYSTEM...


SUMMARY OF 800 AM AST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...14.0N 57.5W
ABOUT 150 MI...240 KM ENE OF BARBADOS
ABOUT 240 MI...385 KM E OF MARTINIQUE
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...W OR 275 DEGREES AT 24 MPH...39 KM/H
MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* GUADELOUPE AND MARTINIQUE
* DOMINICA
* ST. LUCIA
* BARBADOS
* ST. VINCENT AND THE GRENADINES


A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...IN THIS CASE IN 12 TO 24 HOURS.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 800 AM AST...1200 UTC...THE CENTER OF TROPICAL DEPRESSION SEVEN
WAS ESTIMATED NEAR LATITUDE 14.0 NORTH...LONGITUDE 57.5 WEST.
HOWEVER...PRELIMINARY DATA FROM THE HURRICANE HUNTER AIRCRAFT
INDICATE THAT THE DEPRESSION COULD BE DEGENERATING INTO A TROPICAL
WAVE. THE DEPRESSION IS MOVING TOWARD THE WEST NEAR 24 MPH...39
KM/H...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE THROUGH
SUNDAY. ON THE FORECAST TRACK...THE DEPRESSION OR ITS REMNANTS ARE
EXPECTED TO MOVE ACROSS THE WINDWARD ISLANDS LATER THIS AFTERNOON
OR TONIGHT.

MAXIMUM SUSTAINED WINDS ARE NEAR 35 MPH...55 KM/H...WITH HIGHER
GUSTS. ALTHOUGH THE DEPRESSION COULD STILL BECOME A TROPICAL STORM
BEFORE REACHING THE WINDWARD ISLANDS...THE CHANCES OF THIS
OCCURRING APPEAR TO BE DECREASING. AFTER PASSING THE WINDWARD
ISLANDS...THE SYSTEM IS FORECAST TO DISSIPATE AS IT ENCOUNTERS
UNFAVORABLE UPPER-LEVEL WINDS.

ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON A METEO FRANCE BUOY IS
1008 MB...29.77 INCHES.


HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA
LATER TODAY AND TONIGHT.

RAINFALL...TOTAL RAINFALL ACCUMULATIONS OF 1 TO 2 INCHES WITH
ISOLATED MAXIMUM AMOUNTS OF 3 INCHES ARE EXPECTED ACROSS PORTIONS
OF THE LESSER ANTILLES TODAY.


NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 AM AST.

$$
FORECASTER BERG/AVILA
0 likes   

FireBird
Tropical Storm
Tropical Storm
Posts: 133
Joined: Tue Jul 22, 2008 1:44 pm
Location: NorthWest Trinidad, SE Caribbean

Re: ATL: SEVEN - Tropical Depression

#715 Postby FireBird » Sat Aug 11, 2012 7:12 am

Hi all, quick update from Trinidad.
The associated thunderstorms south and west of 7 have poounded TT for the night.
We have battled water for hours, and as day breaks, I can look and see huge landslides on the hills opposite. Many places are completely flooded. More calls coming in every few minutes.
I think more bad news to come. Hope with all my heart that there are no deaths.
We have a busy day trying to clean up.
I am angry because the people were told that there would be no associated effects "at all"........
0 likes   

User avatar
AJC3
Admin
Admin
Posts: 3999
Age: 61
Joined: Tue Aug 31, 2004 7:04 pm
Location: Ballston Spa, New York
Contact:

#716 Postby AJC3 » Sat Aug 11, 2012 7:14 am

I really, really doubt this has a closed ground-relative wind circulation anymore. Nevertheless, given the fast forward speed, squalls on the western and northern quadrants w/r/t the vort center will easily produce TS force wind gusts over the Windward and southern Leeward Islands.
0 likes   

User avatar
Gustywind
Category 5
Category 5
Posts: 12334
Joined: Mon Sep 03, 2007 7:29 am
Location: Baie-Mahault, GUADELOUPE

Re: ATL: SEVEN - Tropical Depression

#717 Postby Gustywind » Sat Aug 11, 2012 7:18 am

FireBird wrote:Hi all, quick update from Trinidad.
The associated thunderstorms south and west of 7 have poounded TT for the night.
We have battled water for hours, and as day breaks, I can look and see huge landslides on the hills opposite. Many places are completely flooded. More calls coming in every few minutes.
I think more bad news to come. Hope with all my heart that there are no deaths.
We have a busy day trying to clean up.
I am angry because the people were told that there would be no associated effects "at all"........

Hi Firebird, thanks for you report :). Hope that things will improve in your area, but that's a bit worrying for sure. You're right concerning the no associated effects, that's why we should continue to monitor carefully the situation because of things can change quickly. Be safe and dry.
0 likes   

User avatar
tailgater
S2K Supporter
S2K Supporter
Posts: 3339
Joined: Sun Jul 11, 2004 9:13 pm
Location: St. Amant La.

Re: ATL: SEVEN - Tropical Depression

#718 Postby tailgater » Sat Aug 11, 2012 7:18 am

Looks like Recon is having trouble finding a LLC but has found winds up to TS strength.

Maybe farther south.
0 likes   
The following post is NOT an official forecast and should not be used as such. It is just the opinion of the poster and may or may not be backed by sound meteorological data. It is NOT endorsed by any professional institution including storm2k.org For Official Information please refer to the NHC and NWS products.

User avatar
TheEuropean
Professional-Met
Professional-Met
Posts: 1796
Age: 59
Joined: Tue Sep 20, 2005 3:17 pm
Location: Voerde, Germany
Contact:

#719 Postby TheEuropean » Sat Aug 11, 2012 7:21 am

000
URNT15 KNHC 111215
AF307 0107A CYCLONE HDOB 17 20120811
120630 1351N 05815W 9772 00309 0121 +240 +228 045024 025 022 003 00
120700 1350N 05816W 9771 00311 0121 +240 +227 041023 024 021 003 00
120730 1348N 05816W 9767 00312 0120 +240 +227 038024 024 022 003 00
120800 1346N 05816W 9769 00310 0120 +240 +228 038024 024 020 003 00
120830 1344N 05816W 9772 00307 0119 +240 +228 040023 024 023 002 00
120900 1343N 05816W 9769 00309 0119 +241 +231 036024 025 019 004 00
120930 1341N 05816W 9770 00309 0119 +239 +234 038022 026 016 006 03
121000 1340N 05815W 9771 00307 0118 +240 +229 035018 021 012 003 00
121030 1338N 05814W 9765 00310 0116 +239 +232 032025 026 018 004 00
121100 1337N 05813W 9773 00302 0115 +236 +234 029023 025 020 004 00
121130 1336N 05812W 9769 00305 0114 +238 +231 027023 024 022 003 00
121200 1334N 05811W 9768 00304 0113 +235 +232 021023 024 024 003 00
121230 1333N 05810W 9772 00300 0112 +240 +223 020023 024 022 002 00
121300 1332N 05809W 9772 00301 0111 +246 +215 026020 023 020 004 00
121330 1330N 05808W 9771 00300 0111 +245 +212 026018 019 019 002 00
121400 1329N 05807W 9770 00304 0114 +246 +206 028017 018 016 004 00
121430 1328N 05806W 9770 00305 0114 +244 +212 037019 020 016 003 00
121500 1327N 05805W 9772 00302 0113 +241 +222 034018 019 015 003 00
121530 1325N 05804W 9769 00302 0111 +239 +230 026018 019 020 001 00
121600 1324N 05803W 9771 00302 0112 +238 +233 026017 019 019 001 00

Sorry, missed one. Anyone feel free to take over at any time. I will continue till someone take over.
0 likes   

RL3AO
Moderator-Pro Met
Moderator-Pro Met
Posts: 16308
Joined: Thu Jun 14, 2007 10:03 pm
Location: NC

#720 Postby RL3AO » Sat Aug 11, 2012 7:22 am

I can take over.
0 likes   


Return to “2012”

Who is online

Users browsing this forum: No registered users and 3 guests