[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 090618 CCA
TWDAT

TROPICAL WEATHER DISCUSSION...COR
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
105 AM EST TUE FEB 09 2010

CORRECTION FOR THE SECTION FROM THE CENTRAL ATLANTIC OCEAN
TO HISPANIOLA TO NICARAGUA...

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.

...THE ITCZ...

FROM THE COASTAL BORDER OF LIBERIA AND SIERRA LEONE TO 5N20W
TO 2N30W 2N39W...CURVING SOUTHWESTWARD INTO COASTAL NORTHEASTERN
BRAZIL TO THE EQUATOR ALONG 50W. SHOWERS ARE POSSIBLE TO THE
SOUTH OF 11N TO THE EAST OF 30W...AND TO THE SOUTH OF 3N BETWEEN
30W AND 50W.

...DISCUSSION...

THE GULF OF MEXICO...
LARGE-SCALE UPPER LEVEL ZONAL FLOW COVERS THE AREA. A MIDDLE
LEVEL TO UPPER LEVEL SHORTWAVE TROUGH MOVES FROM COASTAL
SOUTHWESTERN LOUISIANA TO 26N95W IN THE NORTHWESTERN WATERS.
THE COLD FRONT RUNS FROM EAST TEXAS TO THE COASTAL PLAINS OF
TEXAS AS FAR TO THE SOUTH AS 27N...BEFORE CURVING MORE TO THE
WEST TO 26N102W NORTHERN MEXICO. SHOWERS ARE POSSIBLE FROM 26N
TO THE LOUISIANA GULF OF MEXICO COAST BETWEEN 91W AND 93W.

FROM THE CENTRAL ATLANTIC OCEAN...ACROSS HISPANIOLA...INTO
THE CARIBBEAN SEA TO THE BORDER OF COASTAL NICARAGUA AND
COASTAL HONDURAS...
BROAD LARGE-SCALE UPPER LEVEL CYCLONIC FLOW IS TO THE NORTH OF
THE LINE FROM ANDROS ISLAND IN THE BAHAMAS TO 26N60W BEYOND
32N39W. THIS CYCLONIC FLOW IS PART OF THE TROUGH THAT SUPPORTS
THE COLD FRONT THAT CONTINUES FROM THE CENTRAL ATLANTIC OCEAN
NEAR 30N48W TO 23N60W TO THE WESTERN DOMINICAN REPUBLIC. WHAT
APPEARS TO BE A WEAK REMNANT CLOUD LINE EXTENDS FROM THE WESTERN
DOMINICAN REPUBLIC...ACROSS JAMAICA...TO THE COASTAL BORDER OF
HONDURAS AND NICARAGUA.  SHOWERS ARE POSSIBLE WITHIN 60 NM ON
EITHER SIDE OF THE CLOUD LINE FOR THE ATLANTIC OCEAN COLD
FRONT...THROUGH 32N31W TO 27N50W TO 23N60W TO 21N69W. CLOUDS AND
POSSIBLE SHOWERS COVER ALL OF THE DOMINICAN REPUBLIC EXCEPT FOR
THE SOUTHEASTERN CORNER AND THE NORTHERN HALF OF HAITI.
SIMILAR CLOUDS AND POSSIBLE SHOWERS GO FROM NICARAGUA NEAR 13N
TO 16N BETWEEN 83W AND 86W.

THE REST OF THE ATLANTIC OCEAN...
WEAK UPPER LEVEL FLOW COVERS THE AREA FROM 16N TO 23N BETWEEN
20W AND 30W. A SECOND UPPER LEVEL TROUGH GOES FROM A CYCLONIC
CIRCULATION CENTER THAT IS NEAR 9N30W TO 5N37W TO 3S30W.
SURFACE ANTICYCLONIC FLOW MOVES AROUND A RIDGE THAT GOES
FROM 32N24W TO A 1021 MB HIGH PRESSURE CENTER THAT IS NEAR
29N30W...TO 22N46W TO 19N64W JUST TO THE NORTH OF THE VIRGIN
ISLANDS.

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

$$
MT






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