000
AXNT20 KNHC 252339
TWDAT 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL  
805 PM EDT THU MAR 25 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...

ITCZ AXIS IS CENTERED ALONG 7N11W 3N20W CROSSING THE EQUATOR 
NEAR 33W AND INTO NE BRAZIL NEAR 2S43W. ISOLATED MODERATE 
CONVECTION IS FROM 3S-4N BETWEEN 20W-32W. SCATTERED MODERATE 
CONVECTION IS FROM 2S-1N BETWEEN 46W-50W.

...DISCUSSION...

GULF OF MEXICO...
AS OF 2100 UTC...A COLD FRONT EXTENDS FROM S MISSISSIPPI TO THE 
BAY OF CAMPECHE ALONG 30N89W 24N93W 18N94W MOVING E. RADAR 
IMAGERY AND LIGHTNING DETECTION IMAGERY SHOWS A SQUALL LINE FROM 
N FLORIDA TO THE NE GULF OF MEXICO ALONG 30N83W 28N85W 27N88W. 
SCATTERED MODERATE CONVECTION IS N OF THE SQUALL LINE TO BEYOND 
32N. CLEAR SKIES WITH 15-20 KT NW WINDS ARE OVER THE NW GULF 
BEHIND THE COLD FRONT. IN THE UPPER LEVELS...AN UPPER LEVEL 
RIDGE IS OVER THE GULF WITH AXIS ALONG 80W. A BAND OF SCATTERED 
TO BROKEN HIGH CLOUD AND UPPER LEVEL MOISTURE EXTENDS FROM THE 
BAY OF CAMPECHE TO S FLORIDA. STRONG UPPER LEVEL SUBSIDENCE 
COVERS THE NW GULF. EXPECT IN 24 HOURS FOR...THE COLD FRONT TO 
EXTEND FROM THE STRAITS OF FLORIDA TO THE YUCATAN PENINSULA WITH 
CONVECTION. 

CARIBBEAN SEA...
AS OF 2100 UTC...FRESH TO STRONG TRADEWINDS DOMINATE THE 
MAJORITY OF THE EASTERN AND CENTRAL CARIBBEAN WITH STRONGEST 
WINDS ALONG THE COAST OF N COLOMBIA. MOSTLY FAIR WEATHER 
DOMINATES THE AREA. IN THE UPPER LEVELS...AN UPPER LEVEL RIDGE 
IS OVER THE CARIBBEAN WITH AXIS FROM EL SALVADOR TO HISPANIOLA. 
STRONG SUBSIDENCE IS SUPPRESSING CONVECTION. EXPECT IN 24 HOURS 
FOR...THE COLD FRONT TO PRODUCE SHOWERS FROM W CUBA TO THE 
YUCATAN PENINSULA. 

ATLANTIC OCEAN...
A 1022 MB HIGH IS CENTERED W OF BERMUDA NEAR 32N68W. A COLD 
FRONT IS OVER THE CENTRAL ATLANTIC FROM 32N48W TO 28N55W. A 
DISSIPATING STATIONARY FRONT CONTINUES TOWARDS THE SOUTHERN 
BAHAMAS TO 23N68W. SCATTERED SHOWERS ARE WITHIN 60 NM N OF THE 
FRONTS. A 1022 MB HIGH IS CENTERED OVER THE E ATLANTIC NEAR 
30N30W. IN THE UPPER LEVELS...AN UPPER LEVEL RIDGE IS OVER THE W 
ATLANTIC W OF 60W. AN UPPER LEVEL TROUGH IS OVER THE CENTRAL 
ATLANTIC N OF 20N BETWEEN 50W-60W. AN UPPER LEVEL RIDGE IS OVER 
THE CENTRAL ATLANTIC BETWEEN 20W-50W. AN UPPER LEVEL TROUGH IS E 
OF 30W. EXPECT IN 24 HOURS FOR...THE GULF OF MEXICO COLD FRONT 
TO EXTEND FROM 32N73W TO SOUTH FLORIDA WITH CONVECTION. ALSO 
EXPECT THE CENTRAL ATLANTIC COLD FRONT TO EXTEND FROM 32N36W TO 
26N44W WITH SHOWERS.
 
FOR ADDITIONAL INFORMATION PLEASE VISIT 
HTTP://WWW.HURRICANES.GOV/MARINE

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FORMOSA