000 AGXX40 KNHC 070622 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 122 AM EST SAT JAN 7 2017 Marine Weather Discussion for the Gulf of Mexico, Caribbean Sea, and Tropical North Atlantic from 07N to 19N between 55W and 64W and the Southwest North Atlantic including the Bahamas ...GULF OF MEXICO... MODEL PREFERENCE: Global model consensus. Medium-high confidence. A cold front extending sw from the Fl Big Bend to the western Bay of Campeche will race se today passing through the Fl Straits around sunset today. Lightning data indicates considerable convection to the n of 25N along the front, and this will be reflected in the weather grids today. Strong to near gale northerly winds are observed w of the front, except to the s of 26N w of 94W where strong gale force winds were recently detected on a scatterometer pass. Expect these winds to diminish to less than gale force everywhere late tonight. Maximum seas of 17 ft are forecast for the Bay of Campeche. Winds and seas will gradually diminish and subside from the nw to se beginning this afternoon, but expect ne to e winds to finally diminish to a fresh breeze across the Fl Straits on Tue night as a ridge extends from the Fl Big Bend to Tampico Mexico. Moderate southerly return flow n of the ridge will increase to a fresh breeze during the overnight hours. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN55W AND 64W... MODEL PREFERENCE: Global model consensus. Medium-high confidence. Moderate to fresh trades forecast across the area except for strong to near gale force winds and seas to 11 ft within 270 nm of the nw coast of Colombia through Sun. A strong cold front will enter the Yucatan Channel on late this afternoon with strong to near gale n-ne winds, and 8-12 ft seas, spreading se across the nw Caribbean on tonight. The cold front will reach from the Windward Passage to Honduras on Sun evening, and stall roughly from the Dominican Republic to extreme ne Nicaragua Mon night and Tue, with fresh to strong ne winds w of 67W, except for a narrow band of near gale force winds and seas 8 to 12 ft in and downstream of the Windward Passage. Fresh trades with seas to 8 ft expected across the tropical waters through Sun. ...SW N ATLANTIC INCLUDING THE BAHAMAS... MODEL PREFERENCE: Global model consensus. Medium-high confidence. A strong cold front accompanied by a narrow band of TS moving off the Ga coast late tonight will reach from 31N74W to the Bahama Channel this evening, from Bermuda to ne Cuba Sun morning, from 31N56W to Hispaniola on Mon, then begin to lose identity on Tue. Pre-frontal strong to near force southerly winds n of the Bahamas will increase to minimal gale force to the n of 30N just ahead of the front briefly today. Expect the strong to near gale force southerly flow to lift n of 31N late Sun. Strong to near gale force nw to n winds will follow the front, with frequent gusts to gale force. Winds and seas will diminish and subside from the nw to se beginning on Sun night, but persist across the ne and s-central portions through Wed night with seas to 14 ft reaching the Bahamas. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... .GMZ017...W CENTRAL GULF FROM 22N TO 26N W OF 94W... Gale Warning today. .GMZ023...SW GULF S OF 22N W OF 94W... Gale Warning early today into tonight. .GMZ025...E BAY OF CAMPECHE INCLUDING CAMPECHE BANK... Gale Warning today. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... .AMZ111...ATLANTIC FROM 27N TO 31N W OF 77W... Gale Warning tonight. .AMZ113...ATLANTIC FROM 27N TO 31N BETWEEN 70W AND 77W... Gale Warning today. $$ *For detailed zone descriptions, please visit: http://www.nhc.noaa.gov/abouttafbprod.shtml#OWF Note: gridded marine forecasts are available in the National Digital Forecast Database (NDFD) at: http://www.nhc.noaa.gov/marine/grids.php For additional information, please visit: http://www.nhc.noaa.gov/marine $$ .Forecaster Nelson. National Hurricane Center.