[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 300601
TWDAT

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
105 AM EST MON JAN 30 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 LEON NEAR 9N13W
TO 5N21W. THE ITCZ CONTINUES FROM 5N21W TO 3N30W...CROSSING THE
EQUATOR ALONG 41W...INTO NORTHEASTERN BRAZIL NEAR 2S45W.
RAINSHOWERS ARE POSSIBLE TO THE SOUTH OF 10N BETWEEN AFRICA
AND SOUTH AMERICA.

...DISCUSSION...

THE GULF OF MEXICO...
AN UPPER LEVEL CYCLONIC CIRCULATION CENTER IS MEXICO NEAR
25N106W. 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 1030 MB HIGH PRESSURE CENTER THAT IS IN
SOUTHWESTERN ALABAMA...TO THE MIDDLE TEXAS COAST...ALONG THE
COAST OF TEXAS AND MEXICO...FINALLY TO 21N97W AND THE ISTHMUS
OF TEHUANTEPEC OF MEXICO.

THE CARIBBEAN SEA...
AN UPPER LEVEL RIDGE PASSES THROUGH NORTHWESTERN VENEZUELA AND
NORTHERN COASTAL COLOMBIA BEYOND THE MONA PASSAGE. RAINSHOWERS
ARE POSSIBLE IN BROKEN LOW LEVEL CLOUDS THAT ARE MOVING WESTWARD
WITH THE SURFACE-TO-LOW LEVEL TRADEWIND FLOW.

THE ATLANTIC OCEAN...
AN UPPER LEVEL RIDGE PASSES THROUGH THE MONA PASSAGE...TO 25N64W
BEYOND 32N59W. A SURFACE RIDGE EXTENDS FROM A 1028 MB HIGH
PRESSURE CENTER THAT IS NEAR 30N50W TO 28N67W. AN APPROACHING
COLD FRONT PASSES THROUGH 32N70W TO 31N74W. A SEPARATE
STATIONARY FRONT IS ALONG 30N70W...THROUGH THE NORTHERN BAHAMAS
NEAR 26N77W AND THE FLORIDA STRAITS...TO COASTAL CUBA NEAR
23N83W. BROKEN MULTILAYERED CLOUDS AND POSSIBLE PRECIPITATION
ARE WITHIN 60 NM ON EITHER SIDE OF THE LINE THAT PASSES THROUGH
32N66W TO 28N74W TO 23N83W. AN UPPER LEVEL TROUGH EXTENDS FROM
A CYCLONIC CIRCULATION CENTER THAT IS NEAR 37N27W...THROUGH
30N30W TO 14N40W. A SURFACE TROUGH IS ALONG 27N37W 23N36W
21N33W 17N30W. RAINSHOWERS ARE POSSIBLE TO THE NORTH OF 20N
BETWEEN AFRICA AND 34W.

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

$$
MT




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