High Seas Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
000
FZNT02 KNHC 250329
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC THU AUG 25 2016

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MEXICO

SYNOPSIS VALID 0000 UTC THU AUG 25.
24 HOUR FORECAST VALID 0000 UTC FRI AUG 26.
48 HOUR FORECAST VALID 0000 UTC SAT AUG 27.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM GASTON NEAR 18.6N 42.1W 990 MB AT 0300 UTC AUG
25 MOVING NW OR 310 DEG AT 15 KT. MAXIMUM SUSTAINED WINDS 60 KT
GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM E
SEMICIRCLE...40 NM SW QUADRANT AND 60 NM NW QUADRANT.  SEAS 12
FT OR GREATER WITHIN 90 NM NW AND SE QUADRANTS...120 NM NE
QUADRANT AND 60 NM SW QUADRANT WITH SEAS TO 24 FT. ELSEWHERE
WITHIN 150 NM N AND 120 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS
8 TO 12 FT. REMAINDER OF AREA WITHIN 300 NM N AND 180 NM S
SEMICIRCLES WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM GASTON NEAR 22.3N 46.0W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. LITTLE CHANGE IN
RADIUS OF TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER.
ELSEWHERE WITHIN 180 NM OF CENTER WINDS 20 TO 33 KT. SEAS 10 TO
12 FT. REMAINDER OF AREA WITHIN 240 NM OF CENTER WINDS 20 KT OR
LESS. SEAS TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM GASTON NEAR 26.3N 51.0W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 130 NM NE...110 NM SE...70 NM SW AND 100 NM NW
QUADRANTS. SEAS 12 FT OR GREATER WITHIN 180 NM OF CENTER EXCEPT
210 NM NE QUADRANT WITH SEAS TO 32 FT.
.72 HOUR FORECAST HURRICANE GASTON NEAR 28.5N 55.5W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE GASTON NEAR 30.5N 58.5W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT.
.120 HOUR FORECAST HURRICANE GASTON NEAR 32.0N 59.5W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS 105 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

...GALE WARNING...

.ATLC LOW PRES NEAR 20N67W 1009 MB. FROM 19N TO 21.5N BETWEEN
65W AND 67W SE TO S WINDS 25 TO 35 KT. SEAS 9 TO 13 FT.
ELSEWHERE WITHIN 270 NM NE AND 45 NM SW SEMICIRCLES OF LOW WINDS
20 TO 30 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
22N73W 1008 MB. WITHIN 150 NM NE SEMICIRCLE WINDS 25 TO 35 KT.
SEAS 8 TO 13 FT. ELSEWHERE WITHIN 270 NM NE AND 45 NM
SW SEMICIRCLES OF LOW WINDS 20 TO 25 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
23N75W 1006 MB. WITHIN 120 NM NE SEMICIRCLE WINDS 25 TO 35 KT.
SEAS 8 TO 12 FT. ELSEWHERE WITHIN 270 NM NE AND 45 NM SW
SEMICIRCLES OF LOW WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.

.SYNOPSIS AND FORECAST.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.