000 AXNT20 KNHC 240537 TWDAT TROPICAL WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 205 AM EDT SUN MAR 24 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 0515 UTC. ...THE ITCZ/THE MONSOON TROUGH... THE MONSOON TROUGH EXTENDS ACROSS AFRICA INTO THE E TROPICAL ATLC NEAR 11N15W CONTINUING ALONG 5N18W 2N23W TO 2N29W WHERE THE ITCZ BEGINS AND CONTINUES S OF THE EQUATOR NEAR 36W. CLUSTERS OF SCATTERED MODERATE/ISOLATED STRONG CONVECTION ARE FROM 6N TO S OF THE EQUATOR E OF 19W ACROSS THE PRIME MERIDIAN. ...DISCUSSION... GULF OF MEXICO... A SHORTWAVE UPPER TROUGH EXTENDS FROM CENTRAL MISSISSIPPI ACROSS SE GEORGIA INTO THE W ATLC. A BROAD UPPER RIDGE COVERS THE GULF WATERS WITH THE AXIS ALONG 88W. AN UPPER TROUGH IS OVER THE PLAIN STATES EXTENDING S TO OVER TEXAS SUPPORTING A COLD FRONT THAT ENTERS THE NW GULF AT 24/0300 UTC OVER SW LOUISIANA NEAR 30N93W TO 27N96W THEN W TO INLAND OVER TEXAS JUST S OF CORPUS CHRISTI NEAR 27N98W. A SURFACE TROUGH PRECEDES THE FRONT EXTENDING FROM SE LOUISIANA NEAR VERMILION BAY ALONG 26N93W TO 23N96W. BROKEN TO OVERCAST LOW CLOUDS WITH PATCHES OF FOG ARE BEING REPORTED W OF A LINE FROM NEAR PENSACOLA FLORIDA ALONG 27N90W TO 22N95W. THIS IS LEAVING THE REMAINDER OF THE GULF UNDER CLEAR SKIES TONIGHT. COLD FRONT WILL MOVE SE REACHING FROM FLORIDA PANHANDLE TO VERACRUZ LATE SUN THEN CLEAR OF THE GULF BY LATE MON. CARIBBEAN SEA... BROAD UPPER RIDGE REMAINS OVER THE CARIBBEAN WITH THE RIDGE AXIS EXTENDING FROM THE S ATLC AND THE DEEP TROPICS ACROSS THE WINDWARD ISLANDS TO CENTRAL AMERICA AND NE NICARAGUA. THE UPPER RIDGE IS ADVECTING UPPER LEVEL MOISTURE ACROSS THE S CARIBBEAN BUT IS NOT PRODUCING ANY SIGNIFICANT WEATHER. ISOLATED SHOWERS ARE OVER THE WINDWARD ISLANDS LEAVING THE REMAINDER OF THE BASIN REMARKABLY CLEAR TONIGHT. HIGH PRESSURE CENTERED BETWEEN BERMUDA AND PUERTO RICO WILL CONTINUE TO MOVE E-SE ACROSS W ATLC THROUGH SUN PRODUCING FRESH TRADES ACROSS CENTRAL CARIBBEAN. FRESH TO STRONG S TO SE WINDS WILL CONTINUE ACROSS THE NW CARIBBEAN INCLUDING GULF OF HONDURAS AND YUCATAN CHANNEL THROUGH SUN MORNING THEN WEAKEN LATE SUN THROUGH MON. COLD FRONT WILL ENTER YUCATAN CHANNEL MON EVENING AND STALL FROM E CUBA TO S BELIZE LATE WED. ATLANTIC OCEAN... A SHORTWAVE UPPER TROUGH EXTENDS FROM CENTRAL MISSISSIPPI ACROSS SE GEORGIA INTO THE W ATLC GENERATING SCATTERED SHOWERS/ISOLATED THUNDERSTORMS OVER THE W ATLC FROM 27N-30N BETWEEN 70W-80W. A REMNANT STATIONARY FRONT IS MEANDERING ALONG 30N W OF 72W TO INLAND OVER THE FLORIDA PANHANDLE. A BROAD UPPER RIDGE COVERS THE REMAINDER OF THE W ATLC WITH A 1019 MB SURFACE HIGH BETWEEN BERMUDA AND PUERTO RICO NEAR 26N66W. AN UPPER TROUGH IS OVER THE CENTRAL ATLC N OF 26N BETWEEN 38W-55W SUPPORTING A COLD FRONT THAT EXTENDS INTO THE REGION NEAR 32N43W AND CONTINUES ALONG 25N50W TO 21N58W. SCATTERED SHOWERS AND POSSIBLE ISOLATED THUNDERSTORMS ARE WITHIN 90/120 NM E OF THE FRONT N OF 24N. A SURFACE RIDGE COVERS THE E ATLC ANCHORED BY A 1021 MB HIGH NEAR 28N31W GIVING THE REMAINDER OF THE ATLC FAIR WEATHER TONIGHT. W ATLC HIGH PRESSURE WILL SHIFT E-SE THROUGH SUN. THE NEXT COLD FRONT WILL ENTER W ATLC SUN NIGHT AND EXTEND FROM 32N68W TO W CUBA LATE MON AND FROM 32N51W TO E CUBA LATE TUE THEN STALLING WED IN THE CENTRAL ATLC. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ PAW