543
FZPN03 KNHC 292116
HSFEP2
HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC THU MAY 29 2025
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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
E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W
SYNOPSIS VALID 1800 UTC THU MAY 29.
24 HOUR FORECAST VALID 1800 UTC FRI MAY 30.
48 HOUR FORECAST VALID 1800 UTC SAT MAY 31.
.WARNINGS.
..TROPICAL STORM WARNING
.TROPICAL STORM ALVIN NEAR 15.1N 107.2W 999 MB AT 2100 UTC MAY
29 MOVING NW OR 320 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NE
QUADRANT...60 NM SE QUADRANT...20 NM SW QUADRANT...AND 70 NM NW
QUADRANT. SEAS TO 4 M WITHIN 120 NM NE QUADRANT. ELSEWHERE
WITHIN 18N104W TO 19N107W TO 17N109W TO 14N108W TO 13N105W TO
14N104W TO 18N104W WINDS 20 TO 33 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST TROPICAL STORM ALVIN NEAR 17.6N 108.7W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 80 NM NE QUADRANT...50 NM SE QUADRANT...30 NM SW
QUADRANT...AND 60 NM NW QUADRANT. SEAS 4 FT OR GREATER WITHIN 180
NM N SEMICIRCLE AND 90 NM S SEMICIRCLE WITH SEAS TO 5 FT.
ELSEWHERE WITHIN 19N107W TO 19N110W TO 17N110W TO 16N108W TO
17N106W TO 19N107W WINDS 20 TO 33 KT. SEAS 3.5 TO 5 M. REMAINDER
OF AREA WITHIN 19N105W TO 20N111W TO 16N114W TO 13N113W TO
13N108W TO 16N104W TO 19N105W...INCLUDING NEAR CABO
CORRIENTES...WINDS 20 KT OR LESS. SEAS 2.5 TO 4 M IN MIXED SWELL.
.48 HOUR FORECAST POST-TROPICAL ALVIN NEAR 20.5N 109.1W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 40 NM NE QUADRANT...30 NM SE QUADRANT...0 NM SW
QUADRANT...AND 20 NM NW QUADRANT. SEAS TO 4 M WITHIN 90 NM E
SEMICIRCLE. ELSEWHERE WITHIN 21N107W TO 21N108W TO 21N109W TO
21N110W TO 20N109W TO 20N108W TO 21N107W...INCLUDING NEAR CABO
CORRIENTES...WINDS 20 TO 33 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF
AREA WITHIN 22N106W TO 23N108W TO 23N110W TO 20N112W TO 18N109W
TO 19N106W TO 22N106W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN
MIXED SWELL.
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.
.WITHIN 03S117W TO 02S120W TO 03.4S120W TO 03.4S115W TO 03S117W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
.24 HOUR FORECAST WITHIN 07N111W TO 07N118W TO 00N123W TO
03.4S120W TO 03.4S98W TO 07N111W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.0 M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 06N97W TO 15N108W TO 13N116W TO 05N116W
TO 03.4S106W TO 03S95W TO 06N97W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.0 M IN S TO SW SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 2100 UTC THU MAY 29...
T.S. ALVIN
SCATTERED TO NUMEROUS MODERATE TO STRONG FROM 10N TO
21N BETWEEN 103W AND 110W.
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
MONSOON TROUGH FROM 08N78W TO 12N101W...THEN RESUMES W OF ALVIN
NEAR 11N111W TO 08N125W. ITCZ FROM THAT POINT TO 07N140W.
SCATTERED MODERATE TO STRONG FROM 04N TO 13N BETWEEN 94W AND
102W. SCATTERED MODERATE FROM 05N TO 10N AND W OF 115W.
.FORECASTER ERA. NATIONAL HURRICANE CENTER.
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