000 AGXX40 KNHC 071801 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 100 PM EST SUN MAR 07 2010 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W GULF OF MEXICO... A NW TO SE RIDGE FROM MS DELTA TO FL STRAITS WILL SHIFT E OF FL LATE MON. SE RETURN FLOW OVER THE W CENTRAL WATERS ALREADY AT 15 KT...AND PULSING TO 20 KT...WILL CONTINUE WITH THESE CONDITIONS SPREADING E ACROSS ALL WATERS TUE NIGHT BECOMING S TO SW OVER THE EXTREME NW GULF BY SUNRISE WED. EXPECT NEXT COLD FRONT OFF TEXAS COAST WED AFTERNOON MOVING THROUGH FL STRAITS FRI NIGHT. TROPICAL ATLC AND CARIBBEAN SEA... A FRONTAL TROUGH EXTENDS ACROSS THE NORTHERN PART OF THE TROPICAL ATLANTIC ZONE WITH A SHEAR LINE EXTENDING ACROSS THE NORTHERN LEEWARD ISLANDS TO THE NE COAST OF COLOMBIA. GUIDANCE SEEMS TO HANG ONTO THIS MOISTURE BOUNDARY THROUGH LATE IN THE WEEK WITH A NE TO SE WIND SHIFT ALONG ITS AXIS. WINDS TO THE W OF THE BOUNDARY IN THE CARIBBEAN ARE CURRENTLY 20 TO 25 KT BUT EXPECTED TO DIMINISH TO 15 TO 20 KT BY MON THEN CHANGE LITTLE. E OF THE BOUNDARY...SE WINDS AT 10 TO 15 KT EXCEPT 15 TO 20 KT ALONG N COAST OF VENEZUELA. THE LARGEST N SWELLS...RESULTING IN SEAS 8 TO 10 FT... WILL MOVE INTO THE WATERS E OF THE LEEWARDS TONIGHT...THEN SUBSIDE WITH SEAS HEIGHTS TO 8 FT REACHING ONLY AS FAR S AS 17N TUE. SW N ATLC... A FRONTAL TROUGH HAS SLIDE S OF THE AREA BUT REMNANT OVERCAST CLOUDS PERSIST S OF LINE 29N55W TO THE WINDWARD PASSAGE. A SERIES OF SECONDARY COLD SURGES ARE NOTED NW OF THIS INITIAL FRONT MAINTAINING NLY FLOW ACROSS THE ATLC ZONE WITH SEAS HEIGHTS 8 TO 14 FT NE OF THE BAHAMIAN CHAIN. HIGH PRES WILL SHIFT OFF SE CONUS WITH AN E TO W RIDGE SETTING UP ALONG 28N MON NIGHT. LIGHT WINDS WILL CLOCK AROUND RIDGE AXIS WITH SLY RETURN FLOW DEVELOPING OVER NW WATERS TUE AND WED...THEN INCREASING WED NIGHT. A SERIES OF FRONTS MAY SWEEP E ACROSS THE ATLC WATERS N OF 28N THU AND THU NIGHT WITH A SIGNIFICANT COLD FRONT MOVING OFF FL LATE FRI NIGHT. WARNINGS... ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER NELSON