000
AXNT20 KNHC 071735
TWDAT 

TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL 
205 PM EDT SUN APR 07 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1715 UTC.

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

THE MONSOON TROUGH PASSES THROUGH COASTAL GUINEA NEAR 10N15W TO 
4N17W TO 1S24W. THE ITCZ EXTENDS FROM 1S24W TO COASTAL BRAZIL 
NEAR 3S39W. WIDELY SCATTERED MODERATE CONVECTION IS FROM 0N-6N 
BETWEEN 14W-22W...AND FROM 3S-3N BETWEEN 22W-28W.  

...DISCUSSION...

THE GULF OF MEXICO...

SURFACE RIDGING IS PRODUCING 10-15 KT SW FLOW OVER THE GULF OF 
MEXICO. RADAR IMAGERY SHOWS MOSTLY FAIR WEATHER OVER THE ENTIRE 
AREA. IN THE UPPER LEVELS...ZONAL FLOW PREVAILS WITH UPPER LEVEL 
MOISTURE AND HIGH CLOUDS OVER THE BAY OF CAMPECHE...AND OVER 
FLORIDA. STRONG SUBSIDENCE IS NOTED ELSEWHERE. EXPECT...IN 24 
HOURS FOR SOME SHOWERS TO ADVECT OVER W CUBA AND THE YUCATAN 
CHANNEL. 

THE CARIBBEAN SEA...                                             
   
THE TAIL END OF A STATIONARY FRONT EXTENDS FROM E CUBA AT 20N75W 
TO THE COAST OF HONDURAS AT 16N82W TO THE COAST OF S NICARAGUA 
AT 11N84W. SCATTERED SHOWERS ARE WITHIN 60 NM OF THE FRONT. 
ISOLATED MODERATE CONVECTION IS INLAND OVER COSTA RICA...AND 
ALONG THE COAST OF N COLOMBIA NEAR 9N76W. MORE SCATTERED SHOWERS 
ARE OVER THE LEEWARD ISLAND...PUERTO RICO...S HISPANIOLA...AND 
JAMAICA. EXPECT...OVER THE NEXT 24 HOURS FOR THE MONSOON TROUGH 
TO BECOME MORE ACTIVE WITH CONVECTION OVER N COLOMBIA...THE SW 
CARIBBEAN S OF 12N...AND PANAMA. ALSO EXPECT...THE FRONT TO 
DISSIPATE.  

THE ATLANTIC OCEAN...                                  
              
A 1008 MB LOW IS OVER THE W ATLANTIC NEAR 33N62W. A COLD FRON 
EXTENDS FROM 32N59W TO 26N63W TO THE COAST OF E CUBA AT 20N75W. 
SCATTERED SHOWERS ARE WITHIN 120 NM E OF THE FRONT N OF 24N. A 
1032 MB HIGH IS OVER THE E ATLANTIC NEAR 32N36W. A 1017 MB LOW 
IS OVER THE E ATLANTIC NEAR 32N21W. A COLD FRONT EXTENDS FROM 
THE LOW TO 32N19W TO 26N24W. SCATTERED SHOWERS ARE WITHIN 60 NM 
OF THE FRONT. IN THE UPPER LEVELS...UPPER LEVEL TROUGHS ARE 
SUPPORTING BOTH COLD FRONTS. EXPECT OVER THE NEXT 24 HOURS FOR 
THE W ATLANTIC FRONT TO MOVE E WITH SHOWERS...WHILE THE E 
ATLANTIC FRONT DISSIPATES.  

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

$$
FORMOSA