[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 030547
TWDAT

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
105 AM EST SAT DEC 03 2011

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 REMAINS INLAND ACROSS AFRICA ENDING IN THE
CENTRAL IVORY COAST. THE ITCZ STARTS AT THE COAST OF GUINEA NEAR
9N13W...AND IT CONTINUES TO 10N17W 4N34W 9N50W...TO THE COAST OF
GUYANA/VENEZUELA NEAR 8N60W. SCATTERED MODERATE TO ISOLATED
STRONG CONVECTIVE PRECIPITATION IS FROM 3N TO 8N BETWEEN 16W AND
19W...AND FROM 7N TO 9N BETWEEN 35W AND 37W.

...DISCUSSION...

THE GULF OF MEXICO...

BROAD MIDDLE LEVEL TO UPPER LEVEL ANTICYCLONIC WIND FLOW COVERS
THE AREA. A RIDGE EXTENDS FROM THE ISTHMUS OF TEHUANTEPEC OF
SOUTHERN MEXICO TO SOUTH FLORIDA. UPPER LEVEL WINDS ARE PUSHING
HIGH LEVEL MOISTURE FROM NORTH CENTRAL MEXICO ACROSS AND THROUGH
TEXAS. SURFACE ANTICYCLONIC WIND FLOW COVERS THE AREA. A SURFACE
RIDGE PASSES THROUGH THE FLORIDA PANHANDLE...INTO THE CENTRAL
GULF OF MEXICO...TO THE SOUTHWESTERN CORNER OF THE AREA.

THE CARIBBEAN SEA...

A MIDDLE LEVEL TO UPPER LEVEL TROUGH PASSES OVER THE AREA OF
PUERTO RICO AND THE VIRGIN ISLANDS TO 14N69W. NORTHERLY TO
NORTHEASTERLY WIND FLOW COVERS THE REST OF THE AREA THAT IS
TO THE WEST OF THE TROUGH...AND TO THE SOUTH OF 14N BETWEEN
65W AND 70W. UPPER LEVEL SOUTHWESTERLY WIND FLOW COVERS THE
REST OF THE AREA THAT IS TO THE EAST OF THE TROUGH. A SURFACE
TROUGH IS ALONG 21N60W IN THE ATLANTIC OCEAN...TO THE GUADELOUPE
PASSAGE... O 10N63W IN NORTHEASTERN VENEZUELA. SCATTERED
MODERATE RAINSHOWERS ARE WITHIN 15 NM ON EITHER SIDE OF 18N62W
20N61W 22N60W. SCATTERED MODERATE TO ISOLATED STRONG RAINSHOWERS
ARE TO THE SOUTH OF 20N BETWEEN 60W AND 20N63W 13N70W. THE
24-HOUR RAINFALL TOTAL FOR BARBADOS FOR THE PERIOD ENDING ON
02/1200 UTC WAS AT LEAST 2 INCHES. SIMILAR RAINSHOWERS FROM 9N
TO 12N BETWEEN 58W AND 60W. THE MONSOON TROUGH IS ALONG 10N75W
IN COASTAL COLOMBIA TO 10N80W...AND BEYOND 8N83W IN WESTERN
PANAMA. EXPECT THE PRECIPITATION TO CONTINUE AS LONG AS THE
UPPER LEVEL TROUGH AND THE SURFACE TROUGH PERSIST IN THE SAME
AREA.

THE ATLANTIC OCEAN...

ONE MIDDLE LEVEL TO UPPER LEVEL TROUGH PASSES THROUGH 32N67W
TO 25N68W AND 20N70W JUST OFF THE NORTHERN COAST OF THE
DOMINICAN REPUBLIC. A SURFACE TROUGH IS ALONG 29N64W 24N67W
20N68W. SCATTERED MODERATE RAINSHOWERS ARE TO THE NORTH OF 29N
BETWEEN 63W AND 66W. A SECOND SURFACE TROUGH IS ALONG 31N56W
TO 24N60W. WIDELY SCATTERED TO SCATTERED MODERATE RAINSHOWERS
ARE WITHIN 75 NM ON EITHER SIDE OF THE LINE THAT PASSES THROUGH
32N55W 25N57W 23N59W. A MIDDLE LEVEL TO UPPER LEVEL CYCLONIC
CIRCULATION CENTER IS NEAR 28N34W. CYCLONIC FLOW AROUND THE
CENTER COVERS THE ATLANTIC OCEAN TO THE NORTH OF 16N BETWEEN
22W AND 50W. A SURFACE TROUGH IS ALONG 22N33W 29N34W BEYOND
32N34W. WIDELY SCATTERED TO SCATTERED MODERATE AND ISOLATED
STRONG RAINSHOWERS ARE FROM 27N TO 30N BETWEEN 30W AND 37W.

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

$$
MT





This weather bulletin was brought to you by:
www.nashvilleweather.net