726 AGXX40 KNHC 050702 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 302 AM EDT Sun Aug 5 2018 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... A trough extending from the N central Gulf to the SW Gulf which is an extension of a tropical wave which is moving across the Bay of Campeche will shift W through the remainder of the weekend. Locally developing surface troughs over the Yucatan Peninsula will produce fresh winds over the eastern waters of the Bay of Campeche from the early evenings to overnight hours during the next few days, where seas will be locally 3 to 5 ft. Otherwise, high pressure ridging will prevail through the upcoming week, with a high center developing over the eastern Gulf towards the end of the week. Mainly moderate E to SE flow will become primarily gentle as the high center develops, except locally moderate offshore of Texas and NE Mexico. Seas of 2 to 4 ft will become 3 ft or less as the winds lighten. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... Fresh trades will pulse in the Gulf of Honduras the next several days where seas will occasionally build to 6 ft. Fresh to strong trades in the S central Caribbean will expand in coverage while intensifying to near gale force NW of the coast of Colombia through the week. This will occur as the pressure gradient tightens with high pressure in the SW N Atlantic shifting southward, and low pressure over northern Colombia deepening slightly. Gale force wind will be possible in the Gulf of Venezuela Tue night, and NW of the coast of Colombia Wed night. Current seas of 6 to 9 ft in the central Caribbean will build to 7 to 11 ft as the winds expand and increase, even occasionally building to 12 to 14 ft NW of the coast of Colombia. Elsewhere, seas will be mainly 4 to 7 ft. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A weakening backdoor cold front from 26N65W to 29N73W will sink a little more southward while becoming a remnant trough. This feature has weakened the pressure gradient with gentle winds and corresponding 2 to 4 ft seas mainly found N of 23N. Weak low pressure may develop along the remnant trough over the NE corner of the offshore basin by mid-week, before dissipating. New high pressure ridging will develop S of this boundary, extending from NW to SE. Overall, fairly tranquil boating conditions are expected to prevail N of 23N through the week. S of 23N, winds will pulse to fresh to locally strong speeds near the northern coast of Hispaniola each night through Thu night, with moderate to fresh trades found elsewhere. Seas will occasionally build to 4 to 6 ft near the area of strongest winds. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... .AMZ031...CARIBBEAN FROM 11N TO 15N BETWEEN 72W AND 80W INCLUDING COLOMBIA BASIN... GALE CONDITIONS POSSIBLE Wed night. .AMZ033...CARIBBEAN S OF 15N BETWEEN 64W AND 72W INCLUDING VENEZUELA BASIN... GALE CONDITIONS POSSIBLE Tue night. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 Lewitsky. National Hurricane Center.