High Seas Forecast
Issued by NWS
Issued by NWS
696 FZNT02 KNHC 231458 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC THU JUL 23 2026 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 AMERICA SYNOPSIS VALID 1200 UTC THU JUL 23. 24 HOUR FORECAST VALID 1200 UTC FRI JUL 24. 48 HOUR FORECAST VALID 1200 UTC SAT JUL 25. .WARNINGS. ...GULF OF AMERICA TROPICAL STORM WARNING... .TROPICAL STORM BERTHA NEAR 29.6N 93.2W 1004 MB AT 1500 UTC JUL 23 MOVING W OR 275 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 140 NM S SEMICIRCLE...20 NM NE QUADRANT AND 0 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 0 NM OF CENTER EXCEPT 150 NM SE QUADRANT WITH SEAS TO 4.5 M. ELSEWHERE WITHIN 29N88W TO 29N91W TO 30N94W TO 27N94W TO 27N93W TO 28N88W TO 29N88W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. .12 HOUR FORECAST TROPICAL STORM BERTHA INLAND NEAR 29.7N 95.2W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. ELSEWHERE OVER FORECAST WATERS WITHIN 29N93W TO 30N94W TO 29N97W TO 28N96W TO 28N94W TO 28N93W TO 29N93W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. .24 HOUR FORECAST POST-TROPICAL REMNANT LOW BERTHA INLAND NEAR 29.3N 98.5W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. CONDITIONS IMPROVE OVER FORECAST WATERS. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .36 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. .SYNOPSIS AND FORECAST. .ATLC 48 HOUR FORECAST WITHIN 26N35W TO 25N37W TO 23N39W TO 21N39W TO 18N35W TO 26N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E SWELL. .CARIBBEAN WITHIN 13N70W TO 14N74W TO 13N76W TO 11N75W TO 12N72W TO 12N70W TO 13N70W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST WITHIN 15N70W TO 17N73W TO 16N76W TO 12N78W TO 11N76W TO 12N70W TO 15N70W E WINDS 20 TO 25 KT. SEAS 2.5 M. .48 HOUR FORECAST LITTLE CHANGE. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. $$ .FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.