000 FZNT25 KNHC 200937 OFFN04 NAVTEX MARINE FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 537 AM EDT TUE SEP 20 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 DEEP LAYERED TROUGH CONTINUES NE TO SW ACROSS THE N GULF THIS MORNING WITH A PERSISTENT SURFACE TROUGH LINGERING FROM THE FLORIDA PANHANDLE TO THE CENTRAL GULF. ACTIVE WEATHER WILL CONTINUE ALONG AND SE OF THE SURFACE TROUGH THROUGH TONIGHT AS IT DRIFTS SE. OTHERWISE...A RIDGE WILL DOMINATE THE GULF REGION PRODUCING MAINLY GENTLE TO MODERATE WINDS AND MODEST SEAS. A TROUGH WILL DEVELOP OVER THE YUCATAN PENINSULA DURING THE LATE AFTERNOONS AND MOVE W OVER THE SW GULF OVERNIGHT THROUGH EARLY MORNING DURING THE FORECAST PERIOD. .TODAY...E TO SE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .TONIGHT...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. SCATTERED SHOWERS AND ISOLATED TSTMS. .WED NIGHT...NE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .THU...NE 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 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 SURFACE TROUGH WILL PERSIST ACROSS THE NW WATERS OVER THE NEXT COUPLE OF DAYS WHILE THE ATLANTIC RIDGE REMAINS WELL N OF THE AREA. TROPICAL CYCLONE KARL IS CROSSING 52W THIS MORNING AND WILL MOVE E OF 60W THIS AFTERNOON THROUGH MIDDAY WED...THEN BEGIN TO VEER MORE NW THEN N-NW AND PASS E OF 66W LATE WED THROUGH THU. KARL IS FORECAST TO MOVE N-NW THEN N THROUGH THE FAR NE WATERS LATE THU THROUGH EARLY SAT...LIKELY AS A HURRICANE...BEFORE ACCELERATING TO THE NE. ASSOCIATED E SWELL FROM KARL WILL SPREAD W AND REACH 80W BY WED NIGHT. .TODAY...SE TO S WINDS 5 TO 10 KT...SHIFTING TO E LATE IN THE AFTERNOON. SEAS 2 FT OR LESS. SCATTERED SHOWERS AND ISOLATED TSTMS. .TONIGHT...SE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. SCATTERED SHOWERS AND ISOLATED TSTMS. .WED...E WINDS 5 TO 10 KT S OF 27N...AND SE 5 TO 10 KT N OF 27N. SEAS 2 FT OR LESS. SCATTERED SHOWERS AND ISOLATED TSTMS. .WED NIGHT...E TO SE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. SCATTERED SHOWERS AND ISOLATED TSTMS. .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... BUILDING TO 3 FT AFTER MIDNIGHT. .FRI...NE TO E WINDS 5 TO 10 KT. SEAS 3 FT. .FRI NIGHT...NE TO E WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. .SAT...NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. .SAT NIGHT...NE WINDS 5 TO 10 KT. SEAS 3 FT.