[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 310602
TWDAT

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
105 AM EST TUE JAN 31 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.

...THE ITCZ/THE MONSOON TROUGH...

THE MONSOON TROUGH PASSES THROUGH COASTAL SIERRA LEONE NEAR
8N13W TO 5N19W. THE ITCZ CONTINUES FROM 5N19W TO 2N30W 2N36W...
TO THE EQUATOR ALONG 50W. ISOLATED MODERATE TO LOCALLY STRONG
RAINSHOWERS TO THE SOUTH OF 10N BETWEEN AFRICA AND SOUTH AMERICA.

...DISCUSSION...

THE GULF OF MEXICO...
THE UPPER LEVEL CYCLONIC CIRCULATION CENTER THAT WAS IN MEXICO
NEAR 27N104W ABOUT 24 HOURS AGO NOW IS COMPARATIVELY MUCH LESS
WELL-DEFINED...NEAR 30N99W IN SOUTH CENTRAL TEXAS. UPPER LEVEL
SOUTHWESTERLY WIND FLOW MOVES FROM THE EASTERN PACIFIC OCEAN...
OFF THE MEXICO COAST FROM 10N TO 20N BETWEEN 100W AND 110W...
ACROSS MEXICO AND OVER THE GULF OF MEXICO...BEYOND FLORIDA
INTO THE ATLANTIC OCEAN. A SURFACE RIDGE EXTENDS FROM
A 1032 MB ATLANTIC OCEAN HIGH PRESSURE CENTER THAT IS NEAR
32N77W...THROUGH SOUTH CENTRAL ALABAMA...SOUTHWESTERN
LOUISIANA...TO 29N99W IN TEXAS. A SURFACE TROUGH IS ALONG
23N96W 21N95W 19N94W. RAINSHOWERS ARE POSSIBLE FROM 20N TO 25N
BETWEEN 92W AND THE MEXICO COAST. A DISSIPATING STATIONARY FRONT
PASSES ACROSS ANDROS ISLAND IN THE BAHAMAS...THROUGH THE FLORIDA
STRAITS...TO THE NORTHEASTERN CORNER OF THE YUCATAN PENINSULA.
BROKEN MULTILAYERED CLOUDS AND POSSIBLE PRECIPITATION ARE WITHIN
60 NM ON EITHER SIDE OF THE LINE THAT PASSES THROUGH 28N67W TO
25N80W...AND TO THE SOUTH OF 25N TO THE EAST OF 89W IN THE
SOUTHEASTERN GULF OF MEXICO.

THE CARIBBEAN SEA...
BROAD UPPER LEVEL ANTICYCLONIC WIND FLOW SPANS THE AREA.

THE ATLANTIC OCEAN...
A COLD FRONT PASSES THROUGH 32N59W TO 28N67W AND 26N74W.
A DISSIPATING STATIONARY FRONT CONTINUES FROM 26N74W...ACROSS
ANDROS ISLAND IN THE BAHAMAS...THROUGH THE FLORIDA STRAITS...
TO THE NORTHEASTERN CORNER OF THE YUCATAN PENINSULA. BROKEN
MULTILAYERED CLOUDS AND POSSIBLE PRECIPITATION ARE WITHIN 60 NM
ON EITHER SIDE OF THE LINE THAT PASSES THROUGH 32N57W TO 28N67W
25N80W...AND TO THE SOUTH OF 25N TO THE EAST OF 89W IN THE
SOUTHEASTERN GULF OF MEXICO. AN UPPER LEVEL TROUGH EXTENDS
FROM A 33N21W CYCLONIC CIRCULATION TO 24N30W 15N46W 9N48W.
RAINSHOWERS ARE POSSIBLE FROM 23N TO 30N BETWEEN 26W AND 32W.

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

$$
MT





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