000
AXNT20 KNHC 060537
TWDAT 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
205 AM EDT MON APR 06 2015

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.

...SPECIAL FEATURES...                                          
A GALE WARNING WILL GO INTO EFFECT FOR THE COASTAL WATERS OF 
COLOMBIA MON NIGHT/EARLY TUE DUE TO THE STRENGTHENING PRESSURE 
GRADIENT BETWEEN THE LOWER PRESSURE ACROSS SOUTH AMERICA AND 
HIGH PRESSURE ANCHORED ACROSS THE W ATLC. PLEASE SEE LATEST NWS 
HIGH SEAS FORECAST UNDER AWIPS/WMO HEADERS MIAHSFAT2/FZNT02 KNHC 
FOR MORE DETAILS.

...ITCZ/MONSOON TROUGH... 
                                     
THE MONSOON TROUGH EXTENDS ACROSS AFRICA INTO THE TROPICAL ATLC 
NEAR 11N15W TO 4N17W TO 0N20W TO 3S29W. THE ITCZ CONTINUES FROM  
3S29W TO THE COAST OF SOUTH AMERICA NEAR 5S37W. ISOLATED 
MODERATE CONVECTION IS FROM 5N-4S BETWEEN 10W-30W.  

...DISCUSSION...

GULF OF MEXICO...                                               

10-15 KT SE RETURN FLOW IS OVER THE GULF OF MEXICO. RADAR 
IMAGERY SHOWS SCATTERED SHOWERS OVER THE NORTH CENTRAL GULF N OF 
28N BETWEEN 85W-92W. THE GOES-R IFR PROBABILITY IMAGERY SHOWS 
IFR CONDITIONS ALONG THE LOUISIANA AND TEXAS COASTS N OF 28N 
BETWEEN 91W-97W. MOSTLY FAIR WEATHER IS OVER THE REMAINDER OF 
THE GULF. IN THE UPPER LEVELS...AN UPPER LEVEL RIDGE IS OVER THE 
GULF WITH AXIS ALONG 90W. UPPER LEVEL MOISTURE IS OVER THE N 
GULF N OF 24N. EXPECT OVER THE NEXT 24 HOURS FOR CONTINUED 
SURFACE RETURN FLOW WITH SHOWERS PERSISTING OVER THE NE GULF AND 
N FLORIDA. 
                              
CARIBBEAN SEA...                                                

10-30 KT TRADEWINDS ARE OVER THE CARIBBEAN WITH STRONGEST WINDS 
ALONG THE COAST OF N COLOMBIA AND WEAKEST WINDS OVER THE NW 
CARIBBEAN. SCATTERED SHOWERS ARE OVER THE LEEWARD ISLANDS... 
PUERTO RICO...HISPANIOLA...E CUBA...W HONDURAS...AND GUATEMALA. 
IN THE UPPER LEVELS...AN UPPER LEVEL RIDGE IS OVER THE CARIBBEAN 
WITH STRONG SUBSIDENCE. A GALE IS FORECAST TO START AT O600 UTC 
TUE ALONG THE COAST OF COLOMBIA. ELSEWHERE EXPECT LITTLE CHANGE 
OVER THE NEXT 24 HOURS. 

HISPANIOLA...                                                   

SCATTERED SHOWERS LINGER OVER S HAITI. EXPECT MORE SCATTERED 
SHOWERS OVER THE NEXT 24 HOURS TO MOVE W WITH THE TRADEWINDS. 
STRONG SUBSIDENCE WILL SUPPRESS THE FORMATION OF THUNDERSTORMS. 

ATLANTIC OCEAN...                                                

A STATIONARY FRONT IS OVER THE W ATLANTIC FROM 31N62W TO 28N70W 
TO 28N80W. SCATTERED SHOWERS ARE WITHIN 60 NM OF THE FRONT. A 
PREFRONTAL TROUGH EXTENDS FROM 29N58W TO 24N62W TO 20N64W. 
ISOLATED MODERATE CONVECTION IS FROM 28N-32N BETWEEN 55W-59W. A 
1032 MB HIGH IS OVER THE CENTRAL ATLANTIC NEAR 35N40W. SURFACE 
RIDGING IS OVER THE CENTRAL AND EASTERN ATLANTIC N OF 20N E OF 
50W. OF NOTE IN THE UPPER LEVELS...AN UPPER LEVEL TROUGH IS N OF 
20N BETWEEN 50W-70W SUPPORTING THE SURFACE FRONT. EXPECT THE 
FRONT TO DISSIPATE OVER THE NEXT 24 HOURS. 

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

$$
FORMOSA