000 AXNT20 KNHC 231059 TWDAT TROPICAL WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 705 AM EST MON FEB 23 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 1045 UTC. ...SPECIAL FEATURES... ...GALE WARNING FOR THE SW CARIBBEAN... A GALE WARNING IS IN EFFECT OFF THE NW COAST OF COLOMBIA FROM 11N TO 13N BETWEEN 74W AND 76W. THE GALE IS FORECAST TO END AT 1500 UTC. THE GALE IS FORECAST TO RESUME AT 0600 UTC TUE AND END AGAIN AT 1500 UTC TUE. PLEASE SEE THE LATEST 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 7N12W TO 3N16W WHERE THE ITCZ BEGINS AND CONTINUES TO 0N23W TO ON34W TO THE COAST OF SOUTH AMERICA NEAR 3S42W. ISOLATED MODERATE CONVECTION IS FROM 1S-4S BETWEEN 36W-43W...AND FROM 2N- 6N BETWEEN 40W-50W. ...DISCUSSION... GULF OF MEXICO... AS OF 0900 UTC...A COLD FRONT EXTENDS FROM SE LOUISIANA AT 29N91W TO S TEXAS AT 27N97W WITH SCATTERED SHOWERS WITHIN 60 NM N OF FRONT. 20-25 KT NORTHERLY WINDS ARE N OF THE FRONT. PATCHY SEA FOG IS ALSO OVER THE NE GULF S OF THE FRONT. 5-10 KT SOUTHERLY FLOW IS S OF THE FRONT. IN THE UPPER LEVELS... A BROAD RIDGE IS OVER THE GULF WITH PREDOMINATELY WESTERLY FLOW. UPPER LEVEL MOISTURE IS OVER THE N GULF N OF 24N. STRONG SUBSIDENCE REMAINS OVER THE S GULF. EXPECT IN 24 HOURS FOR THE COLD FRONT TO EXTEND FROM S FLORIDA TO THE SOUTHERN BAY OF CAMPECHE WITH SCATTERED SHOWERS AND THUNDERSTORMS. CARIBBEAN SEA... A GALE IS ALONG THE COAST OF NW COLOMBIA. THE GALE IS FORECAST TO PULSE ON AND OFF OVER THE NEXT 36 HOURS. SEE ABOVE. 15-30 KT TRADEWINDS ARE OVER THE REMAINDER OF THE CARIBBEAN. AN AREA OF SCATTERED SHOWERS ARE OVER THE E CARIBBEAN BETWEEN 60W-74W TO INCLUDE CENTRAL HISPANIOLA MOVING W. IN THE UPPER LEVELS...BROAD RIDGING IS OVER THE CARIBBEAN WITH PREDOMINATELY WESTERLY FLOW AND VERY STRONG SUBSIDENCE. EXPECT LITTLE CHANGE OVER THE NEXT 24 HOURS. ...HISPANIOLA... EASTERLY SURFACE FLOW IS GENERATING ISOLATED SHOWERS ACROSS THE ISLAND. THESE SHOWERS WILL CONTINUE FOR THE NEXT 24 HOURS. STRONG SUBSIDENCE WILL HOWEVER SUPPRESS THE FORMATION OF THUNDERSTORMS. ATLANTIC OCEAN... A 1026 MB HIGH IS OVER THE W ATLANTIC NEAR 32N64W. ANOTHER 1037 MB HIGH IS CENTERED OVER THE CENTRAL ATLANTIC NEAR 41N36W. MOSTLY EASTERLY FLOW WITH FAIR WEATHER IS OVER THE ATLANTIC FROM 20N-30N BETWEEN 20W-70W. IN THE UPPER LEVELS...AN UPPER LEVEL LOW IS CENTERED W OF THE CANARY ISLANDS AT 28N30W. EXPECT IN 24 HOURS FOR A COLD FRONT TO BE OVER THE W ATLANTIC FROM 30N74W TO S FLORIDA WITH SCATTERED SHOWERS AND THUNDERSTORMS. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORMOSA