000
AXNT20 KNHC 022345
TWDAT 

TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
805 PM EDT TUE APR 02 2013

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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2315 UTC.

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

THE MONSOON TROUGH PASSES THROUGH COASTAL SIERRA LEONE NEAR 
8N13W AND EXTENDS TO 43N20W TO 1N24W. THE ITCZ CONTINUES FROM 
1N24W TO 1S25W TO THE COAST OF BRAZIL AT 3S42W. ISOLATED 
MODERATE CONVECTION IS FROM 4S-4N BETWEEN 6W-20W. 

...DISCUSSION...

THE GULF OF MEXICO...

AS OF 2100 UTC...A DISSIPATING STATIONARY FRONT EXTENDS FROM 
COCOA BEACH FLORIDA AT 28N80W TO THE MOUTH OF THE MISSISSIPPI 
RIVER AT 29N89W. SCATTERED MODERATE TO ISOLATED STRONG 
CONVECTION IS S OF LOUISIANA FROM 26N-28N BETWEEN 88W-92W. 
SIMILAR CONVECTION IS INLAND OVER CENTRAL TEXAS. ISOLATED 
MODERATE CONVECTION IS ALSO INLAND OVER MEXICO W OF VERACRUZ. 
FAIR WEATHER IS OVER THE REMAINDER OF THE GULF OF MEXICO. IN THE 
UPPER LEVELS...ZONAL FLOW PREVAILS WITH UPPER LEVEL MOISTURE AND 
BROKEN HIGH CLOUDS OVER THE BAY OF CAMPECHE...AND THE CENTRAL 
GULF BETWEEN 85W-92W. EXPECT IN 24 HOURS FOR... A LOW TO DEVELOP 
OVER THE NW GULF NEAR 27N94W WITH A FRONTAL SYSTEM FROM THE 
FLORIDA PANHANDLE TO THE SURFACE LOW TO NEAR TAMPICO MEXICO. 
EXPECT CONVECTION ALL ALONG THE FRONTAL SYSTEM.  
 
THE CARIBBEAN SEA...
 
10-25 KT TRADEWINDS ARE OVER THE CARIBBEAN SEA WITH STRONGEST 
WINDS ALONG THE COAST OF N COLOMBIA. SCATTERED SHOWERS ARE OVER 
THE HIGHER ELEVATIONS OF PUERTO RICO...HISPANIOLA...JAMAICA... 
AND CUBA. SCATTERED MODERATE CONVECTION IS ELSEWHERE OVER N 
COLOMBIA...PANAMA...AND COSTA RICA DUE TO A MONSOON TROUGH. 
MOSTLY FAIR WEATHER IS OVER THE REMAINDER OF THE CARIBBEAN SEA 
AND CENTRAL AMERICA. IN THE UPPER LEVELS...ZONAL FLOW PREVAILS 
WITH UPPER LEVEL MOISTURE AND BROKEN HIGH CLOUDS OVER THE 
YUCATAN PENINSULA AND W CUBA...AND OVER THE SW CARIBBEAN S OF 
12N. EXPECT LITTLE CHANGE OVER THE NEXT 24 HOURS.   

THE ATLANTIC OCEAN...

A COLD FRONT IS OVER THE W ATLANTIC FROM 32N69W TO 29N75W TO 
COCOA BEACH FLORIDA NEAR 28N80W. A PREFRONTAL TROUGH EXTENDS 
FROM 30N65W TO 23N69W. SCATTERED MODERATE CONVECTION IS E OF THE 
TROUGH AXIS N OF 23N BETWEEN 60W-67W. A 1029 MB HIGH IS CENTERED 
OVER THE CENTRAL ATLANTIC NEAR 32N45W. THE TAIL END OF A COLD 
FRONT IS OVER THE E ATLANTIC W OF THE CANARY ISLANDS FROM 32N17W 
TO 26N23W. SCATTERED SHOWERS ARE WITHIN 90 NME OF THE FRONT. OF 
NOTE IN THE UPPER LEVELS...AN UPPER LEVEL TROUGH IS OVER THE W 
ATLANTIC N OF 22N BETWEEN 65W-80W SUPPORTING THE W ATLANTIC 
FRONT. EXPECT OVER THE NEXT 24 HOURS FOR CONVECTION TO DEVELOP 
OVER THE W ATLANTIC N OF THE BAHAMAS. ALSO EXPECT THE OTHER 
FRONTAL SYSTEMS TO MOVE E WITH CONVECTION OVER THE CENTRAL 
ATLANTIC AND SHOWERS OVER THE E ATLANTIC. . 
 
FOR ADDITIONAL INFORMATION PLEASE VISIT 
HTTP://WWW.HURRICANES.GOV/MARINE

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FORMOSA