000
FZPN03 KNHC 291533
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC THU MAY 29.
24 HOUR FORECAST VALID 1200 UTC FRI MAY 30.
48 HOUR FORECAST VALID 1200 UTC SAT MAY 31.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM ALVIN NEAR 13.8N 106.3W 1005 MB AT 1500 UTC MAY
29 MOVING NW OR 315 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM OF CENTER
EXCEPT 40 NM NE QUADRANT. SEAS TO 4 M WITHIN 90 NM NE QUADRANT.
ELSEWHERE WITHIN 17N104W TO 18N105W TO 18N107W TO 14N107W TO 
13N105W TO 14N103W TO 17N104W WINDS 20 TO 33 KT. SEAS 2.5 TO 
4.0 M.
.24 HOUR FORECAST TROPICAL STORM ALVIN NEAR 16.1N 108.3W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 80 NM NE QUADRANT...50 NM SE QUADRANT...40 NM SW
QUADRANT...AND 60 NM NW QUADRANT. SEAS 4 M OR GREATER
WITHIN 120 NM N SEMICIRCLE...60 NM S SEMICIRCLE WITH SEAS TO 
5 M. ELSEWHERE WITHIN 19N106W TO 19N108W TO 18N110W TO
16N110W TO 15N108W TO 17N106W TO 19N106W WINDS 20 TO 33
KT. SEAS 4 TO 5 M. REMAINDER OF AREA WITHIN 20N106W TO 20N109W 
TO 18N112W TO 13N111W TO 13N108W TO 16N104W TO 20N106W...INCLUDING 
NEAR CABO CORRIENTES...WINDS 20 KT OR LESS. SEAS 2.5 TO 4 M IN 
MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM ALVIN NEAR 19.1N 108.8W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 0 NM OF CENTER EXCEPT 50 NM NE QUADRANT. SEAS TO 4 M
WITHIN 60 NM N SEMICIRCLE. ELSEWHERE WITHIN 20N107W TO 21N108W TO 
20N110W TO 19N110W TO 19N108W TO 19N107W TO 20N107W...INCLUDING 
NEAR CABO CORRIENTES...WINDS 20 TO 33 KT. SEAS 3 TO 4 M. REMAINDER 
OF AREA WITHIN 21N106W TO 22N110W TO 20N112W TO 13N112W TO 14N108W 
TO 21N106W...INCLUDING NEAR CABO CORRIENTES...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.

.06 HOUR 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 01N106W TO 04N113W TO 04N120W TO
00N124W TO 03.4S120W TO 03.4S100W TO 01N106W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 13N106W TO 14N115W TO 06N118W TO
03.4S117W TO 03.4S90W TO 13N106W...EXCEPT LEE OF GALAPAGOS
ISLANDS...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 1500 UTC THU MAY 29...

.T.S. ALVIN...SCATTERED TO NUMEROUS MODERATE TO STRONG FROM 
08N TO 20N BETWEEN 101W AND 110W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N78W TO 10N102W...THEN RESUMES W OF ALVIN 
NEAR 11N111W TO 06N140W. SCATTERED MODERATE FROM 05N TO 11N 
BETWEEN 95W AND 101W...AND ALONG THE BOUNDARY AND W OF 115W.

$$
.FORECASTER ERA. NATIONAL HURRICANE CENTER.