000 AGXX40 KNHC 181828 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 130 PM EST TUE JAN 18 2011 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND TROPICAL N ATLC...AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... A FRONTAL TROUGH OVER THE EXTREME NE WATERS WILL MEANDER TILL A COLD FRONT ABSORBS THE REMNANTS ON WED MORNING... WITH THE MERGED BOUNDARY MOVING E OF AREA LATE WED. SLY RETURN FLOW INCREASED TO 15-20 KT THIS MORNING OVER THE W GULF IN ADVANCE OF THIS COLD FRONT WHICH IS EXPECTED TO MOVE OFF THE TX COAST EARLY THIS AFTERNOON. SOME REMNANTS OF THIS COLD FRONT MAY LINGER BRIEFLY OVER THE SE WATERS WED NIGHT AS SLY SETS UP AGAIN ALL GULF WATERS BY SUNRISE THU. THE NEXT COLD FRONT IS EXPECTED TO MOVE OFF THE NW GULF COAST THU AFTERNOON WITH MINIMAL GALE IN THE POST FRONTAL NLY WINDS OVER THE SW ZONE THU NIGHT INTO EARLY FRI MORNING. GUIDANCE FLUCTUATING ON STRENGTH OF THIS NLY FLOW SO WILL LET MINIMAL GALE FORECAST CONTINUE. A PORTION OF THIS SECOND FRONT MAY ALSO LINGER OVER THE SE WATERS SAT AS RETURN FLOW SETS UP AT 15-20 KT OVER THE W PORTION BY SUNRISE SUN WITH E-SE WINDS AT 20 KT SPREADING E OVER THE N-CENTRAL WATERS SUN NIGHT. SW N ATLC AND TROPICAL ATLC... A SERIES OF WEAK TROUGHS...ACCOMPANIED BY A 15-20 KT WIND SHIFT...WILL MOVE E ACROSS THE WATERS N OF 27N THROUGH WED NIGHT. A WEAK RIDGE WILL SET UP WED WITH ITS PARENT HIGH PRES CENTER SHIFTING RAPIDLY E ACROSS THE NORTHERN WATERS...AND PASSING TO THE S OF BERMUDA THU NIGHT AS SLY FLOW BEGINS TO INCREASE OVER THE NW WATERS. THE NEXT COLD FRONT WILL MOVE OFF THE GA COAST THU NIGHT ACCOMPANIED BY AT LEAST A 20-25 KT WIND SHIFT OVER WATERS N OF 27N...WITH THE FRONT REACHING FROM BERMUDA TO SE FL FRI NIGHT. THIS FRONT SEEMS TO LOSE ITS PUSH SAT...BECOMES QUASI STATIONARY SAT NIGHT INTO SUN...BEFORE MOVING SE AGAIN SUN NIGHT LEAVING A FRONTAL TROUGH OVER THE ATLC WATERS N OF THE VIRGIN ISLANDS TO HISPANIOLA LATE SUN NIGHT. FRESH NE TRADES...EXCEPT TO STRONG MAINLY WATERS S OF 18N... EXPECTED TO CONTINUE ACROSS THE TROPICAL WATERS THROUGH EARLY WED...THEN DIMINISH SOME AS THE FRONT APPROACHES AND MOVES INTO THE WATERS N OF 20N LATE IN THE WEEK. CARIBBEAN... FRESH TO STRONG TRADES OVER THE CENTRAL AND EASTERN CARIBBEAN WILL CONTINUE THROUGH THU NIGHT AND THEN DIMINISH FRI THROUGH SAT. SE RETURN FLOW WILL REMAIN OVER THE FAR NW CARIBBEAN THROUGH THE PERIOD AHEAD OF A SERIES OF FRONTS IMPACTING THE GULF OF MEXICO. ONE OF THESE FRONTS WILL FINALLY MOVE INTO THE NW CARIBBEAN WATERS N OF 20N ON SAT...BRINGING 15-20 KT WINDS INTO THE YUCATAN CHANNEL SAT NIGHT. WARNINGS.. ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .NONE. GMZO82...MINIMAL GALE CONDITIONS EXPECTED THU NIGHT-FRI MORNING. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER NELSON