000 FZNT25 KNHC 200218 OFFN04 NAVTEX MARINE FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1018 PM EDT MON SEP 19 2016 ...PLEASE REFER TO COASTAL WATERS FORECASTS (CWF) AVAILABLE THROUGH NOAA WEATHER RADIO AND OTHER MEANS FOR DETAILED COASTAL WATERS FORECASTS... SOUTHEAST GULF OF MEXICO .SYNOPSIS...A TROUGH WILL DEVELOP OVER THE YUCATAN PENINSULA DURING THE LATE AFTERNOONS AND MOVE W OVER THE SW GULF OVERNIGHT THROUGH EARLY MORNING THROUGH THE FORECAST PERIOD. A WEAK SURFACE TROUGH WILL PERSIST ACROSS THE NORTH-CENTRAL WATERS ACCOMPANIED BY SOME ACTIVE WEATHER TONIGHT AND TUE. OTHERWISE...A RIDGE WILL DOMINATE THE GULF REGION PRODUCING MAINLY GENTLE TO MODERATE WINDS AND MODEST SEAS. .OVERNIGHT...NE TO E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .TUE...E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .TUE NIGHT...NE TO E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .WED...NE TO E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .WED NIGHT...NE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .THU...NE TO E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .THU NIGHT...NE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .FRI...NE TO E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .FRI NIGHT...NE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .SAT...NE TO E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .SAT NIGHT...NE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. WITHIN 200 NM EAST OF THE COAST OF FLORIDA .SYNOPSIS....A TROUGH WILL PERSIST ACROSS THE NW WATERS OVER THE NEXT COUPLE OF DAYS. TROPICAL CYCLONE KARL IS CROSSING 50W TONIGHT AND WILL REACH THE TROPICAL WATERS FROM 19N TO 22N E OF 60W BY LATE TUE...THEN BEGIN TO VEER MORE NW PASSING E OF 65W WED AND THU LIKELY AS A TROPICAL STORM. THE OFFICIAL FORECAST TRACK SHOWS KARL APPROACHING THE NE PART OF THE SW N ATLC ON FRI...POSSIBLY AS A HURRICANE. ASSOCIATED E SWELL FROM KARL WILL REACH EASTERN WATERS EARLY TUE...THEN REACH 80W BY WED EVENING. .OVERNIGHT...E WINDS 5 TO 10 KT S OF 27N...AND S LESS THAN 5 KT N OF 27N. SEAS 2 FT OR LESS. .TUE...E WINDS 5 TO 10 KT S OF 27N...AND S LESS THAN 5 KT N OF 27N. SEAS 2 FT OR LESS. .TUE NIGHT...E WINDS 5 TO 10 KT S OF 27N...AND SE 5 TO 10 KT N OF 27N. SEAS 2 FT OR LESS. .WED...E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. SCATTERED SHOWERS AND ISOLATED TSTMS. .WED NIGHT...E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .THU...E TO SE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .THU NIGHT...E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS S OF 27N...AND 3 FT N OF 27N. .FRI...NE TO E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS S OF 27N...AND 3 FT N OF 27N. .FRI NIGHT...NE TO E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS S OF 27N...AND 3 TO 5 FT N OF 27N. .SAT...NE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS S OF 27N...AND 3 TO 5 FT N OF 27N. .SAT NIGHT...NE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS S OF 27N... AND 3 TO 5 FT N OF 27N.