000 FZNT25 KNHC 210922 OFFN04 NAVTEX MARINE FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 522 AM EDT WED SEP 21 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 PERSISTENT NE TO SW TROUGH ACROSS THE N CENTRAL GULF WILL SHIFT W TODAY AND INLAND TONIGHT AS HIGH PRES RIDGING BUILDS IN FROM THE NE. FAIRLY TRANQUIL MARINE CONDITIONS WILL PERSIST THROUGH THE WEEK...WITH WINDS INCREASING SLIGHTLY IN THE CENTRAL AND W GULF FRI THROUGH SUN AS THE PRES GRADIENT TIGHTENS. .TODAY...NE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. SCATTERED SHOWERS AND ISOLATED TSTMS. .TONIGHT...NE TO E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS. .THU...NE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .THU NIGHT...NE TO E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS. .FRI...NE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .FRI NIGHT...NE TO E 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 TO E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .SUN...NE TO E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. .SUN NIGHT...NE TO E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. WITHIN 200 NM EAST OF THE COAST OF FLORIDA .SYNOPSIS....A TROUGH OFFSHORE OF FLORIDA WILL PERSIST THROUGH THE END OF THE WEEK. KARL HAS WEAKENED OVERNIGHT TO A TROPICAL DEPRESSION...LOCATED NEAR 20.2N 57.6W AT 0900 UTC MOVING W AT 12 KT. KARL IS EXPECTED TO MOVE W-NW TODAY THEN BEGIN TO TURN MORE NW TONIGHT AND STRENGTHEN TO A TROPICAL STORM NEAR 25N 64W BY THU AFTERNOON...THEN BEGIN A GRADUAL STRENGTHENING TREND THU NIGHT THROUGH FRI NIGHT AS IT MOVES N AND THEN NE ACROSS E PORTIONS OF THE NE WATERS AS A STRONG TROPICAL STORM. KARL IS THEN FORECAST TO ACCELERATE TO THE NE AND EXIT THE AREA INTO THE CENTRAL ATLC AS A HURRICANE SAT. ASSOCIATED E TO SE SWELL FROM KARL WILL PROPAGATE THROUGH THE ATLC WATERS THROUGH THE UPCOMING WEEKEND. .TODAY...E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. SCATTERED SHOWERS AND ISOLATED TSTMS. .TONIGHT...E TO SE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS. SCATTERED SHOWERS AND ISOLATED TSTMS. .THU...S OF 27N...NE TO E WINDS 5 TO 10 KT. N OF 27N...S WINDS 5 KT...SHIFTING TO NE IN THE AFTERNOON. SEAS 2 FT OR LESS. SCATTERED SHOWERS AND ISOLATED TSTMS. .THU NIGHT...E TO SE WINDS 5 TO 10 KT. SEAS 2 FT OR LESS... BUILDING TO 3 FT IN THE LATE EVENING AND OVERNIGHT. SCATTERED SHOWERS AND ISOLATED TSTMS. .FRI...E WINDS 5 TO 10 KT. SEAS 3 FT IN THE MORNING... SUBSIDING TO 2 FT OR LESS. .FRI NIGHT...E WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. .SAT...SE WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. .SAT NIGHT...SE WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. .SUN...SE TO S WINDS 5 TO 10 KT...SHIFTING TO E IN THE AFTERNOON. SEAS 3 TO 4 FT. .SUN NIGHT...E WINDS 5 TO 10 KT. SEAS 3 FT.