000
AXNT20 KNHC 210003
TWDAT 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL  
705 PM EST SAT FEB 20 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2315 UTC.

...ITCZ...

THE ITCZ AXIS IS CENTERED ALONG 5N10W 2N20W 3N40W TO THE NE 
BRAZIL COAST NEAR 1N50W. WIDELY SCATTERED MODERATE CONVECTION IS 
FROM 1N-4N BETWEEN 23W-30W. 

...DISCUSSION...

GULF OF MEXICO...
AS OF 2100 UTC...A 1011 MB LOW IS CENTERED OVER THE NW GULF OF 
MEXICO NEAR 26N96W. A WARM FRONT EXTENDS E FROM THE LOW CENTER 
TO THE CENTRAL GULF ALONG 26N92W 24N87W. BROKEN TO OVERCAST LOW 
CLOUDS WITH SCATTERED SHOWERS ARE WITHIN 120 NM N OF THE FRONT. 
FLORIDA AND THE NE GULF HAVE MOSTLY FAIR SKIES WITH 10 KT E TO 
SE SURFACE WINDS. IN THE UPPER LEVELS...A STRONG 130-150 KT 
JETSTREAM IS OVER THE N GULF WITH ZONAL FLOW. STRONG SUBSIDENCE 
IS OVER THE N GULF N OF 24N. SCATTERED TO BROKEN HIGH CLOUDS ARE 
OVER THE SW GULF S OF 24N AND W OF 88W. EXPECT...THE TAIL END OF 
A COLD FRONT TO BE ALONG THE TEXAS COAST IN 24 HOURS WITH 
SHOWERS. ALSO EXPECT THE SURFACE LOW TO DISSIPATE AND THE WARM 
FRONT TO MOVE TOWARDS THE NE GULF WITH MORE SHOWERS. 

CARIBBEAN SEA...
THE TAIL END OF A STATIONARY FRONT IS OVER THE LEEWARD ISLANDS 
AND PUERTO RICO ALONG 19N60W 17N70W. RAIN AND SHOWERS ARE WITHIN 
45 NM OF THE FRONT. RADAR IMAGERY OVER PUERTO RICO SHOWS 
HEAVIEST RAIN IS JUST S OF THE ISLAND. ELSEWHERE...BROKEN LOW 
CLOUDS AND SCATTERED SHOWERS ARE ALSO ALONG THE COAST OF CENTRAL 
AMERICA FROM PANAMA TO HONDURAS. IN THE UPPER LEVELS...ZONAL 
FLOW IS OVER THE CARIBBEAN WITH STRONG SUBSIDENCE S OF 17N. A 
BAND OF BROKEN HIGH CLOUDS AND UPPER LEVEL MOISTURE IS OVER THE 
N CARIBBEAN N OF 17N W OF 70W TO INCLUDE HISPANIOLA AND E CUBA. 
MODERATE TRADEWINDS ARE NOTED OVER THE CARIBBEAN WITH THE 
STRONGEST WINDS ALONG THE COAST OF COLOMBIA. EXPECT...LITTLE 
CHANGE OVER THE NEXT 24 HOURS.    

ATLANTIC OCEAN.
A 1023 MB HIGH IS CENTERED OVER ALABAMA NEAR 33N86W PRODUCING 
SURFACE RIDGING AND FAIR WEATHER OVER THE W ATLANTIC. A COLD 
FRONT EXTENDS FROM THE E ATLANTIC TO THE CENTRAL ATLANTIC ALONG 
32N17W 26N30W 21N50W. A STATIONARY FRONT CONTINUES TO THE 
LEEWARD ISLANDS NEAR 19N60W. SCATTERED MODERATE CONVECTION IS 
WITHIN 60 NM E OF THE FRONT N OF 27N. SCATTERED SHOWERS ARE 
WITHIN 45 NM OF THE REMAINDER OF THE FRONT. A 1016 MB HIGH IS 
CENTERED W OF THE CAPE VERDE ISLANDS NEAR 19N31W. IN THE UPPER 
LEVELS...AN UPPER LEVEL LOW IS CENTERED OVER SE OF THE CAPE 
VERDE ISLANDS NEAR 10N20W. ZONAL FLOW IS OVER THE REMAINDER OF 
THE AREA.    

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

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FORMOSA