000 AGXX40 KNHC 060625 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 225 AM EDT MON OCT 06 2008 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO... CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. SW N ATLC AND GULF OF MEXICO... ATLC FRONTAL TROUGH THROUGH 31N74W TO JUST E OF PALM BEACH CONTS TO DRIFT W AND WEAKEN. GULF OF MEXICO SFC TROUGH EXTENDS FROM 23N90W TO A 1008 MB LOW PRES JUST EMERGING OFF THE MEXICAN COAST AND EXPECTED TO SLIDE ACROSS THE FAR S PORTIONS OF THE BAY OF CAMPECHE LATER TODAY. GRADIENT BETWEEN FRONTAL TROUGH/LOWER PRESS OVER THE BAY OF CAMPECHE/SRN GULF OF MEXICO AND SE CONUS RIDGE SUPPORTS NE WINDS OF 20 TO LOCALLY 25 KT OVER THE GULF N OF 27N E OF 90W...A TAD STRONGER THAN FCST. BACKDOOR COLD FRONT STILL SLATED TO SWEEP SWD OVER ATLC WATERS LATE TUE AND EXTEND FROM 26N65W TO TO NE FLORIDA BY LATE WED. WINDS INCREASE BRIEFLY TO 20-25 KT AND SEAS TO 10 FT IN HIGH PRES BUILDING IN WAKE OF FRONT. IN THE MEANTIME MODELS ARE IN MUCH BETTER AGREEMENT ON TIMING AND STRENGTH OF NEXT COLD FRONT SLATED TO MOVE OFF THE TEXAS COAST TUE NIGHT AND EXTEND FROM FL/AL SWD THROUGH 25N90W TO BAY OF CAMPECHE BY LATE WED. EXPECT A BRIEF PERIOD OF N-NE WINDS OF 15-20 KT BEHIND FRONT OVER W GULF WED. BY THU RIDGE OVER THE ERN CONUS BLOCKS EWD ADVANCE OF GULF OF MEXICO FRONT WITH THE MUCH WEAKER FRONT EXTENDING FROM FL PANHANDLE TO WRN BAY OF CAMPECHE BY LATE THU. FRONT DRIFTS NWD AND DISSIPATES BY LATE FRI WITH LIGHT NE TO E WINDS IN ITS WAKE. CARIBBEAN AND TROPICAL N ATLC... TROPICAL WAVE S OF 19N ALONG 69W MOVING W 10 KT AND ANOTHER WAVE LOCATED S OF 18N ALONG 58W ALSO MOVING W AT 10 KT. AS INDICATED IN THE PREVIOUS DISCUSSION TROPICAL WAVES NOT EXPECTED TO HAVE MUCH OF AN IMPACT OTHER THAN CONVECTION AND A SLIGHT WIND SHIFT. MODELS ALL AGREE ON SUB-NORMAL 10-15 KT TRADES IN TROPICAL ATLC AND CARIBBEAN. ON FRI SWELL TRAIN FROM BUILDING ATLC RIDGE ARRIVES OVER THE FAR N PORTIONS OF THE TROPICAL N ATLC AND MAKES IT AS FAR S AS 17N. SEAS MAY REACH 8 FT. WARNINGS... ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... NONE. FORECASTER COBB. TROPICAL PREDICTION CENTER.