000 AGXX40 KNHC 260611 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 130 AM EST WED DEC 26 2007 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. SERIES OF STRONG SHORTWAVES CONTINUES TONIGHT. ONE OVER SE CONUS AND ANOTHER ENTERING THE SRN PLAINS. MID LEVEL RIDGE REMAINS OVER WRN CARIB NE TO 35N50W BUT WEAKENING. MID LEVEL TROUGH OVER ERN ATLC WITH CLOSED OFF CENTER NEAR 28N40W. ON THE SURFACE TONIGHT WEAK CYCLOGENESIS OFF SE COAST WITH WEAK COLD FRONT SW OVER CENTRAL FL. MODERATE HIGH 1025 MB OVER ATLC WITH 20 TO 25 KT WINDS N OF 20N BETWEEN 42W AND 75W. RETURN FLOW SETTING UP OVER WRN GULF WITH LOW PRES DEVELOPING OVER SRN PLAINS. CARIB WINDS MOSTLY MODERATE E OF 80W. LATER DAY 1 FIRST SHORTWAVE EXITING OVER DELMARVA. NEXT SHORTWAVE MOVES TO 95W. MID LEVEL RIDGE STATIONARY BUT WEAKENING. CLOSED MID LEVEL LOW OVER ERN ATLC NEARLY STATIONARY AT 27N40W. ON THE SURFACE LATER DAY 1 WINDS OVER ATLC WATERS DECREASING BUT STILL 20 KT S OF 22N E OF 70W. WEAK COLD FRONT MOVES TO NW BAHAMAS BUT WINDS LIGHT. LOW PRES OVER SRN PLAINS MOVES TO LA WITH WINDS OF 20 TO 25 KT N OF 28N W OF 90W. CARIB WINDS DECREASE SLIGHTLY. FOR DAY 2 MID LEVEL RIDGE SHOWS NEW STRENGTH WITH CENTER OVER SE BAHAMAS. CLOSED OFF MID LEVEL LOW OVER ERN ATLC OPENS UP AND WEAKENS. NEW SHORTWAVE TROUGH MOVES TOWARD SRN PLAINS AS OLD ONE DEPARTS OVER NE CONUS. ON THE SURFACE DAY 2 WEAK LOW PRES HANGS ON OVER ERN FORECAST AREA NEAR 40W WITH WINDS TO 20 KT. 1025 MB HIGH OVER ATLC MOVING SLOWLY EWD TO 30N57W MAINTAINING NE AND E WINDS E OF 70W. CARIB WINDS INCREASE SOME WITH TIGHTENING PRES GRADIENT. GULF WINDS MOSTLY LIGHT. OUTLOOK PERIOD... FOR DAY 3 WITH STRENGTHENING MID LEVEL RIDGE OVER BAHAMAS..SHORTWAVES FORCED TO TAKE MORE OF A NRN TRACK. NEXT ONE MOVING OUT OF SRN PLAINS TOWARD OH VALLEY. MID LEVEL TROUGH OVER ERN ATLC REFUSED TO GO AWAY REMAINING STATIONARY NEAR 28N40W. ON THE SURFACE DAY 3 SURFACE LOW STRENGTHENS UNDER ERN ATLC TROUGH WITH CENTER NEAR 28N39W AND WINDS OF 20 TO 25 KT. ATLC RIDGE WEAKENS BUT STILL MAINTAINS NE TO E WINDS 20 TO 25 KT S OF 23N E OF 80W. NEW COLD FRONT ENTERS NW GULF WITH WINDS 20 TO 25 KT BUT SHOULD BE SHORTLIVED SINCE AIRMASS FOLLOWING FRONT LACKING COLD AIR. FOR DAY 4 MID LEVEL RIDGE REMAINS STATIONARY OVER CUBA/BAHAMAS BLOCKING SHORTWAVES TO THE NW. STRONG SWLY MID LEVEL FLOW CONTINUES OVER SRN CONUS BUT COLD AIR CUTOFF FROM PENETRATING DEEP S. MID LEVEL TROUGH OVER ERN ATLC ALONG 40W TO 50W. ON THE SURFACE DAY 4 WEAKENING LOW OVER ERN ATLC NEAR 28N40W STATIONARY WITH WINDS TO 20 KT. ATLC RIDGE LIFTING NE BUT MAINTAINING NE AND E WINDS OF 20 KT S OF 23N E OF 70W. CARIB WINDS ELY 20 TO 25 KT E OF 83W. GULF COLD FRONT DRIFTING SE WILL BECOME STATIONARY OVER N CENTRAL GULF WITH WINDS TO 20 KT ON N SIDE. FOR DAY 5 LITTLE CHANGE TO MID LEVEL RIDGE OVER AREA EXCEPT FOR STRONG WLY MID LEVEL FLOW LOWERING HEIGHTS OVER NRN GULF. MID LEVEL FLOW N OF AREA BECOMES MORE WLY WITH MODERATE SHORTWAVES MOVING EWD TO N OF 35N. PERSISTENT MID LEVEL TROUGH REMAINS OVER ERN ATLC FROM 35N35W SW TO 15N55W. ON THE SURFACE DAY 5 PRES GRADIENT BETWEEN 1023 MB HIGH NEAR 29N60W AND WEAK LOW NEAR 26N42W WILL MAINTAIN NE WINDS 20 KT E OF 45W. ELY WINDS S OF 23N E OF 80W WILL CONTINUE AT 20 TO 25 KT. GULF STATIONARY FRONT MOVES SWD W OF 90W AS WEAK FRONTAL WAVE MOVES NE ALONG FRONT. WINDS TO 20 KT N OF 28N EITHER SIDE OF FRONT. WARNINGS... ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... NONE. FORECASTER RRG