000 AGXX40 KNHC 091941 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 240 PM EST MON NOV 09 2009 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N GULF OF MEXICO... HURRICANE IDA WEAKENED TO A TROPICAL STORM DURING THE MORNING HOURS. IDA IS CENTERED NEAR 27.5N 88.4W AT 1800 UTC MOVING NNW AT 17 KT...AND THE CENTER IS FORECAST TO MAKE LANDFALL ALONG THE NORTHERN GULF COAST TUE MORNING. THE CURRENT INTENSITY IS 60 KT...BUT IS FORECAST TO WEAKEN TONIGHT. AS IDA MOVES INLAND STRONG NLY WINDS BEHIND A FRONTAL BOUNDARY WILL AFFECT THE GULF WATERS. THE FRONT WILL SHIFT E OF THE AREA WED AFTERNOON. THE WINDS WILL DECREASE FROM W TO E AND THE STRONGEST WIND WILL BE CONFINED TO THE E GULF THU AND BECOMING LIGHT ON FRI. SW N ATLC S OF 31N AND W OF 65W... STRONG HIGH PRES N OF THE AREA COMBINED WITH TROPICAL STORM IDA WILL CONTINUE TO PRODUCE A STRONG PRES GRADIENT ACROSS THE ATLC ZONE THROUGH TUE NIGHT. AS A RESULT...A STRONG BREEZE FROM THE NE-E WILL PREVAIL ACROSS MOST OF THE AREA. THE HIGH SHIFTS FURTHER TO THE EAST ON WEDNESDAY WHILE TROPICAL STORM IDA IS FORECAST TO WEAKEN AND EVENTUALLY DISSIPATE BY THURSDAY. THIS WILL LOOSEN THE PRESSURE GRADIENT AND BRING A DECREASE IN THE WINDS ACROSS THE AREA BRIEFLY. THE REMNANTS OF IDA WILL SHIFT OFF THE SE COAST OF THE U.S. ON WED NIGHT. ON THE WEST SIDE OF THIS LOW...STRONG TO NEAR GALE WINDS...WITH THE POTENTIAL FOR A PERIOD OF GALE FORCE WINDS POSSIBLE...OVER THE FAR WEST PORTION OF THE FORECAST AREA ON THU. CURRENT MODEL GUIDANCE INDICATES LOW LINGERING ACROSS THE FORECAST AREA THROUGH THE WEEKEND...WITH A PROLONGED PERIOD OF FRESH TO STRONG BREEZE IN THE WESTERN PORTION OF THE FORECAST AREA THROUGH AT LEAST SAT. IF THIS SCENARIO PANS OUT...THIS WILL GENERATE ANOTHER ROUND OF LONG PERIOD SWELLS ACROSS THE AREA. CARIBBEAN AND TROPICAL N ATLANTIC W OF 55W... A WEAK PRES GRADIENT WILL REMAIN ACROSS MOST OF THE CARIBBEAN WITH LIGHT TO MODERATE TRADES CONTINUING THROUGH FRI. A COLD FRONT WILL MOVE INTO THE NW CARIBBEAN WED NIGHT INTO THU AND WILL STALL AND DISSIPATE IN THE WESTERN CARIBBEAN FRI. W TO NW WINDS BEHIND THE FRONT WILL BRING A BRIEF INCREASE TO 20-25 KT. WARNINGS... ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .GMZ084...TROPICAL STORM WARNING THROUGH TUE MORNING. .GMZ086...TROPICAL STORM WARNING N OF 26N W OF 84W THROUGH TUE. .GMZ084...GALE CONDITIONS EXPECTED N OF 28N E OF 88W TUE. .GMZ086...GALE CONDITIONS EXPECTED N OF 29N TUE NIGHT. $$ FORECASTER AL