000 AGXX40 KNHC 081747 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 150 PM EDT FRI JUN 8 2007 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. SW N ATLC... MID/UPPER LEVEL CYCLONIC VORTEX SITS RIGHT OVER LAKE OKEECHOBEE IN FLORIDA EXTENDING UPPER LEVEL TROUGH SW ACROSS BAHAMA ISLANDS TO NRN HISPANIOLA...STILL NOT REFLECTED AT THE SURFACE AS WINDS REMAIN VERY LIGHT WITH SEAS LESS THAN 3 FT. BROAD RIDGE DOMINATES ENTIRE BASIN AND NOT EXPECTED TO YIELD TERRAIN TILL WEAK COLD FRONT ENCROACHES NE CORNER OF REGION LATE SAT NIGHT WHEN WESTERLIES INCREASE N OF 29N E OF 70W. MODERATELY DIFFLUENT FLOW ALOFT OVER NRN BAHAMAS ENHANCING SCATTERED TO NUMEROUS TSTMS...SOME POSSIBLY SEVERE...FROM 26N-29N W OF 73W. REMAINDER OF REGION REMAINS WITH PLENTY OF MOISTURE AVAILABLE FOR CONVECTION BUT LITTLE OF MECHANICAL LIFTING ELSEWHERE. GULF OF MEXICO... LARGE WELL ANCHORED MID/UPPER LEVEL RIDGE CENTERED AT 28N108W HAS DRY NW ANTICYCLONIC FLOW ACROSS MOST OF GULF...EXCEPT N OF 22N E OF 86W THAT FOLLOWS ABOVE MENTIONED CYCLONIC VORTEX. AT THE SURFACE...ATLC RIDGE EXTENDS INTO GULF ALONG 28N THAT TOGETHER WITH DRY AIR MASS HAS KEPT CONVECTION TO THE MINIMUM. PRES DROPS OVER MEXICO AND TEXAS IS TIGHTENING GRADIENT ALONG TEXAS COASTAL WATERS WITH S-SE WIND INCREASING THROUGH SAT NIGHT BEFORE SUBSIDING BY EARLY SUN. REMAINDER GULF SHOULD REMAIN WITH LIGHT SE WIND AND SEAS LESS THAN 4 FT. CARIBBEAN SEA... EWD EXTENSION OF ANTICYCLONIC CENTER OVER S MEXICO KEEPS ENTIRE CARIBBEAN WITH DRY AIR MASS FROM 11N TO 18N. EVEN TRPCL WAVE ALONG 67W BECOMES HARD TO DEFINE VISUALLY DUE TO ABSOLUTE LACK OF CONVECTION...ONLY WIND DIRECTION SIGNATURE USED TO TRACK WAVE. MODERATE WINDS ASSOCIATED WITH WAVE BECOMES MAIN FEATURE IN WIND AND SEA PATTERN. NEXT WAVE NOW ENTERING TRPCL N ATLC LIKELY TO SUFFER SAME FATE AS DRY AIR MASS EFFECTIVELY HAMPERS DEVELOPMENT. POSSIBLE LOW PRES TRYING TO FORM OVER PANAMA MAINTAINS SOME MOISTURE AND CONVECTION S OF 11N W OF 77W. ANY ORGANIZATION LIKELY TO DRIFT W OUT OF CARIBBEAN BASIN WITHIN 24-36 HOURS. WARNINGS... ATLANTIC...NONE. CARIBBEAN...NONE. GULF OF MEXICO...NONE. FORECASTER WALLY BARNES