500
FZNT02 KNHC 211502
HSFAT2
HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC TUE JUL 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE JUL 21.
24 HOUR FORECAST VALID 1200 UTC WED JUL 22.
48 HOUR FORECAST VALID 1200 UTC THU JUL 23.
.WARNINGS.
..GULF OF AMERICA TROPICAL STORM WARNING
.TROPICAL STORM BERTHA NEAR 29.3N 86.3W 995 MB AT 1500 UTC JUL
21 MOVING NNW OR 345 DEG AT 3 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM S
SEMICIRCLE...40 NM NE QUADRANT AND 0 NM NW QUADRANT. SEAS TO 4 M
OR GREATER WITHIN 0 NM OF CENTER EXCEPT 75 NM SE QUADRANT.
ELSEWHERE WITHIN 29N83W TO 30N84W TO 30N87W TO 28N88W TO 26N86W
TO 27N83W TO 29N83W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M.
.24 HOUR FORECAST TROPICAL STORM BERTHA NEAR 29.5N 88.0W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 40 NM NE QUADRANT...80 NM SE QUADRANT...90 NM SW
QUADRANT...AND 20 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 60
NM SE SEMICIRCLE WITH SEAS TO 4.5 M. ELSEWHERE WITHIN 30N84W TO
30N86W TO 30N90W TO 28N91W TO 27N90W TO 27N86W TO 30N84W WINDS 20
TO 33 KT. SEAS 2.5 TO 4.0 M.
.48 HOUR FORECAST TROPICAL STORM BERTHA NEAR THE COAST NEAR
29.3N 91.3W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL
STORM FORCE WINDS WITHIN 0 NM N SEMICIRCLE AND 60 NM S
SEMICIRCLE. WITHIN 29N89W TO 29N91W TO 29N93W TO 28N92W TO 28N90W
TO 28N88W TO 29N89W WINDS 20 TO 33 KT. SEAS 2.5 TO 3.5 M.
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.
.CARIBBEAN WITHIN 13N71W TO 13N79W TO 12N79W TO 11N77W TO 12N74W
TO 11N70W TO 13N71W...INCLUDING THE GULF OF VENEZUELA... E WINDS
20 TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST WITHIN 13N75W TO 13N77W TO 12N78W TO 10N77W TO
11N75W TO 13N75W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M IN
NE TO E SWELL.
.48 HOUR FORECAST WITHIN 14N69W TO 13N76W TO 11N76W TO 12N72W TO
11N72W TO 12N69W TO 14N69W...INCLUDING THE GULF OF VENEZUELA...
E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.
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