[Tropical] Tropical Weather Discussion

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AXNT20 KNHC 020605
TWDAT

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
205 AM EDT THU SEP 02 2010

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...METEOROLOGICAL ANALYSIS...WEATHER
OBSERVATIONS...AND RADAR.

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

...SPECIAL FEATURES...

THE CENTER OF HURRICANE EARL AT 02/0600 UTC IS NEAR 28.6N
74.4W...OR ABOUT 440 NM TO THE SOUTHEAST OF THE EASTERN SECTIONS
OF NORTH CAROLINA...MOVING NORTH-NORTHWESTWARD 16 KT. THE
ESTIMATED MINIMUM CENTRAL PRESSURE IS 932 MB. THE MAXIMUM
SUSTAINED WIND SPEEDS ARE 120 KT WITH GUSTS TO 145 KT. PLEASE
READ THE LATEST NHC FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS
MIATCMAT2/WTNT22 KNHC AND THE LATEST PUBLIC ADVISORY UNDER
MIATCPAT2/WTNT32 KNHC FOR MORE DETAILS. NUMEROUS STRONG
RAINSHOWERS AND THUNDERSTORMS ARE FROM 27N TO 29N BETWEEN
72W AND 75W. OTHER RAINSHOWERS AND POSSIBLE THUNDERSTORMS ARE
ELSEWHERE FROM 26N TO 32N BETWEEN 70W AND 77W.

THE CENTER OF TROPICAL STORM FIONA AT 02/0300 UTC IS NEAR
21.8N 64.1W...OR ABOUT 240 NM TO THE NORTH-NORTHEAST OF PUERTO
RICO...MOVING NORTHWESTWARD 20 KT. THE ESTIMATED MINIMUM CENTRAL
PRESSURE IS 1000 MB. THE MAXIMUM SUSTAINED WIND SPEEDS ARE 50 KT
WITH GUSTS TO 60 KT. PLEASE READ THE LATEST NHC FORECAST/
ADVISORY UNDER AWIPS/WMO HEADERS MIATCMAT3/WTNT23 KNHC AND THE
PUBLIC ADVISORY UNDER MIATCPAT3/WTNT33 KNHC FOR MORE DETAILS.
ISOLATED MODERATE RAINSHOWERS AND POSSIBLE THUNDERSTORMS ARE
FROM 17N TO 25N BETWEEN 62W AND 67W.

THE CENTER OF TROPICAL STORM GASTON AT 02/0300 UTC IS NEAR 13.4N
37.7W...MOVING WESTWARD 10 KT. THE ESTIMATED MINIMUM CENTRAL
PRESSURE IS 1005 MB. THE MAXIMUM SUSTAINED WIND SPEEDS ARE 35 KT
WITH GUSTS TO 45 KT. PLEASE READ THE LATEST NHC FORECAST/ADVISORY
UNDER AWIPS/WMO HEADERS MIATCMAT4/WTNT24 KNHC AND THE PUBLIC
ADVISORY UNDER MIATCPAT4/WTNT34 KNHC FOR MORE DETAILS. NUMEROUS
STRONG RAINSHOWERS AND THUNDERSTORMS ARE FROM 12N TO 14N BETWEEN
38W AND 40W.

...TROPICAL WAVES...

NO OTHER TROPICAL WAVES ARE IN THE ATLANTIC BASIN.

...THE ITCZ...

FROM GUINEA NEAR 10N14W TO 9N20W 11N30W...FROM 10N41W TO
8N50W BEYOND 11N60W. STRONG RAINSHOWERS AND THUNDERSTORMS
ARE FROM 8N TO 10N BETWEEN 18W AND 24W...AND FROM 10N TO
14N BETWEEN 18W AND 21W. ISOLATED MODERATE RAINSHOWERS AND
POSSIBLE THUNDERSTORMS ARE FROM 6N TO 9N BETWEEN 26W AND 30W...
FROM 3N TO 4N BETWEEN 39W AND 42W...AND FROM 8N TO 10N BETWEEN
37W AND 60W.

...DISCUSSION...

THE GULF OF MEXICO...
UPPER LEVEL CYCLONIC FLOW COVERS THE AREA WITH A 27N90W
CYCLONIC CIRCULATION CENTER AND ITS ACCOMPANYING NORTH-TO-
SOUTH TROUGH. ISOLATED MODERATE RAINSHOWERS AND POSSIBLE
THUNDERSTORMS HAVE DEVELOPED ACROSS THE OPEN GULF WATERS...
AND IN MEXICO FROM THE YUCATAN PENINSULA...TO THE ISTHMUS
OF TEHUANTEPEC AND BEYOND...TO THE SOUTH OF 22N TO THE
EAST OF 103W. AN UPPER LEVEL CYCLONIC CIRCULATION CENTER
IS NEAR 23N108W...JUST OFF THE MEXICO WEST COAST. NUMEROUS
STRONG RAINSHOWERS AND THUNDERSTORMS ARE WITHIN A 75 RADIUS
RADIUS OF 23N106W AND 26N109W.

THE CARIBBEAN SEA...
TROPICAL STORM FIONA IS AFFECTING EVERYTHING IN THE NORTHEASTERN
CARIBBEAN SEA. AN UPPER LEVEL TROUGH IS IN THE EASTERN PACIFIC
OCEAN OFF THE COAST OF CENTRAL AMERICA. RAINSHOWERS AND
THUNDERSTORMS EXTEND FROM SOUTHWESTERN COSTA RICA AND INTO
SOUTHERN HONDURAS.

THE ATLANTIC OCEAN...
THE AREA THAT IS TO THE WEST OF 70W IS COVERED BY HURRICANE
EARL. THE AREA THAT IS TO THE SOUTH OF 25N BETWEEN 60W AND 70W
IS COVERED BY TROPICAL STORM FIONA. A CENTRAL ATLANTIC OCEAN
UPPER LEVEL TROUGH PASSES THROUGH 32N36W TO 26N46W TO 21N50W.
A SURFACE TROUGH PASSES THROUGH 32N36W TO 29N40W TO 28N44W.
ISOLATED MODERATE SHOWERS ARE WITHIN 15 NM ON EITHER SIDE OF
28N45W 30N40W 32N36W. SURFACE ANTICYCLONIC FLOW MOVES AROUND
A RIDGE THAT GOES FROM A 1018 MB HIGH PRESSURE CENTER THAT IS
NEAR 34N26W...TO 26N39W. SURFACE ANTICYCLONIC FLOW MOVES AROUND
A RIDGE THAT GOES FROM A 1023 MB HIGH PRESSURE CENTER THAT IS
NEAR 32N60W TO 25N53W TO 18N52W.

FOR ADDITIONAL INFORMATION PLEASE VISIT
HTTP://WWW.HURRICANES.GOV/MARINE

$$
MT







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