000 FZNT02 KNHC 180244 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 0430 UTC SUN AUG 18 2013 SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT. SECURITE ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND GULF OF MEXICO SYNOPSIS VALID 0000 UTC SUN AUG 18. 24 HOUR FORECAST VALID 0000 UTC MON AUG 19. 48 HOUR FORECAST VALID 0000 UTC TUE AUG 20. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .TROPICAL DEPRESSION ERIN NEAR 20.7N 37.7W 1008 MB AT 0300 UTC AUG 18 MOVING WNW OR 290 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 12 FT OR GREATER WITHIN 90 NM N SEMICIRCLE...60 NM SE QUADRANT AND 45 NM SW QUADRANT WITH SEAS TO SEAS TO 15 FT. ELSEWHERE WITHIN 270 NM N AND WITHIN 150 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. .24 HOUR FORECAST TROPICAL DEPRESSION ERIN NEAR 21.9N 41.3W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS TO 13 FT WITHIN 60 NM OF CENTER. ELSEWHERE WITHIN 240 NM N AND WITHIN 180 NM S SEMICIRCLES WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. .48 HOUR FORECAST POST-TROPICAL REMNANT LOW ERIN NEAR 23.0N 46.0W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. SEAS TO 12 FT WITHIN 30 NM OF CENTER. ELSEWHERE WITHIN 240 NM OF CENTER WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. .72 HOUR FORECAST...DISSIPATED. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER NELSON. NATIONAL HURRICANE CENTER.