000 AGXX40 KNHC 180641 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 241 AM EDT THU JUN 18 2015 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W...AND THE SW N ATLANTIC INCLUDING THE BAHAMAS. ...GULF OF MEXICO... MODEL PREFERENCE: FOR WINDS 00Z GFS AND 00Z ECMWF BLENDED WITH PREVIOUS/OFFICIAL FORECAST. FOR WAVE PARAMETERS 00Z MWW3 AND 00Z ECMWF WAVE BLENDED WITH PREVIOUS/OFFICIAL FORECAST. HIGH CONFIDENCE. HIGH PRES 1018 MB IS LOCATED IN THE NE GULF NEAR 27N85W WITH A RIDGE AXIS EXTENDING TO THE W TO THE CENTRAL TEXAS COAST. THESE FEATURES WILL REMAIN NEARLY STATIONARY ACROSS THE BASIN THROUGH THE FORECAST PERIOD WHICH WILL SUPPORT LIGHT AND VARIABLE WINDS AND SEAS 2 FT OR LESS IN THE NE GULF...MODERATE E WINDS IN THE SE GULF AND 2-4 FT SEAS...AND MODERATE TO LOCALLY FRESH SE-S WINDS IN THE WESTERN GULF WITH 3-6 FT SEAS. MEANWHILE DIURNAL TROUGHING WILL DEVELOP OVER THE YUCATAN EACH EVENING...PUSHING TO THE W AND OFFSHORE DURING THE OVERNIGHT HOURS. A BRIEF SURGE OF FRESH TO STRONG EASTERLY WINDS WILL ACCOMPANY THE TROUGH NEAR AND ALONG THE NW PORTION OF THE YUCATAN PENINSULA DURING THE OVERNIGHT HOURS THROUGH EARLY NEXT WEEK. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... MODEL PREFERENCE: FOR WINDS 00Z GFS BLENDED WITH PREVIOUS/OFFICIAL FORECAST. FOR WAVE PARAMETERS 00Z MWW3 BLENDED WITH PREVIOUS/OFFICIAL FORECAST. HIGH CONFIDENCE. A STRONG ATLC RIDGE TO THE N OF THE AREA WILL CONTINUE TO INTERACT WITH A SERIES OF TROPICAL WAVES OVER THE NEXT SEVERAL DAYS TO MAINTAIN STRONG TRADE WIND FLOW ACROSS MAINLY THE CENTRAL CARIBBEAN. MODEL GUIDANCE CONTINUES TO SUGGEST A RATHER LARGE AREA OF SOLID 30 KT WINDS NW OF NORTHERN COLOMBIA MAINLY DURING THE OVERNIGHT INTO THE EARLY MORNING HOURS FOR THE NEXT FEW NIGHTS...AND A GALE WARNING REMAINS IN EFFECT FOR ZONE AMZ031 NW OF THE COAST OF COLOMBIA WHERE SEAS WILL BUILD TO UP TO 14-15 FT DURING THE STRONGEST WINDS. WINDS WILL ALSO INCREASE TO GALE FORCE AROUND SUNSET IN THE GULF OF VENEZUELA THE NEXT 2 DAYS. MEANWHILE EASTERLY WINDS WILL CONTINUE TO PULSE TO 20-25 KT IN THE GULF OF HONDURAS THE NEXT FEW DAYS MAINLY BETWEEN 00-12Z. PERSISTENT MODERATE TO FRESH TRADE WINDS OVER THE TROPICAL N ATLC ALONG WITH EAST SWELL WILL KEEP SEAS APPROACHING 8 FT S OF 15N THROUGH THIS AFTERNOON...SUBSIDING THEREAFTER. WINDS AND SEAS WILL INCREASE OVER THE TROPICAL N ATLC S OF 15N AGAIN SUN THROUGH MON AS THE ATLC RIDGE WILL BUILD IN THE WAKE OF A PASSING TROPICAL WAVE. ...SW N ATLANTIC INCLUDING THE BAHAMAS... MODEL PREFERENCE: FOR WINDS 00Z GFS AND 00Z ECMWF BLENDED WITH PREVIOUS/OFFICIAL FORECAST. FOR WAVE PARAMETERS 00Z MWW3 AND 00Z ECMWF WAVE BLENDED WITH PREVIOUS FORECAST. HIGH CONFIDENCE. ATLC RIDGING REMAINS ESTABLISHED FROM NW TO SE ACROSS THE BASIN ANCHORED BY 1019 MB HIGH PRES NEAR 28N74W. THIS RIDGING IS MAINTAINING PRIMARILY LIGHT TO GENTLE BREEZES FROM 26N TO 31N... AND MODERATE TO FRESH TRADE WINDS S OF 26N...STRONGEST NEAR THE COAST OF HISPANIOLA AND THE APPROACHES TO THE WINDWARD PASSAGE WHERE RECENT ASCAT DATA SHOWED WINDS TO 25 KT. A SERIES OF WEAK FRONTAL BOUNDARIES WILL PASS EASTWARD N OF 29N THROUGH THE REMAINDER OF THE WEEK WITH LITTLE IMPACT OTHER THAN BRIEF WIND SHIFTS BEHIND THE BOUNDARIES. OTHERWISE THE FORECAST WILL MAINTAIN GOOD CONSISTENCY WITH THE PREVIOUS ONE AS LITTLE CHANGES ARE EXPECTED TO IMPACT THE BASIN INTO THE UPCOMING WEEKEND INTO EARLY NEXT WEEK. $$ .WARNINGS...ANY CHANGES IMPACTING COASTAL NWS OFFICES WILL BE COORDINATED THROUGH AWIPS 12 PLANET CHAT OR BY TELEPHONE: .GULF OF MEXICO... NONE. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... .AMZ031...CARIBBEAN FROM 11N TO 15N BETWEEN 72W AND 80W INCLUDING COLOMBIA BASIN... GALE WARNING TODAY THROUGH FRI NIGHT. GALE CONDITIONS POSSIBLE SAT THROUGH SAT NIGHT. .AMZ033...CARIBBEAN S OF 15N BETWEEN 64W AND 72W INCLUDING VENEZUELA BASIN... GALE WARNING EARLY TODAY. GALE WARNING TONIGHT. GALE WARNING FRI NIGHT. GALE CONDITIONS POSSIBLE SAT NIGHT. .SW N ATLANTIC INCLUDING THE BAHAMAS... NONE. $$ *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.HURRICANE WARNINGS.GOV/MARINE $$ .FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.