000
FZPN03 KNHC 310936
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC SAT MAY 31 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SAT MAY 31.
24 HOUR FORECAST VALID 0600 UTC SUN JUN 01.
48 HOUR FORECAST VALID 0600 UTC MON JUN 02.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM ALVIN NEAR 20.0N 109.3W 1005 MB AT 0900 UTC MAY
31 MOVING N OR 350 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM E
SEMICIRCLE...60 NM SW QUADRANT AND 70 NM NW QUADRANT. SEAS 4 M 
OR GREATER WITHIN 60 NM OF CENTER...EXCEPT 90 NE QUADRANT WITH 
SEAS TO 4.5 M. ELSEWHERE WITHIN 20N107W TO 21N108W TO 20N110W TO 
19N111W TO 18N110W TO 19N108W TO 20N107W WINDS 20 TO 33 KT. SEAS 
3 TO 4.5 M. REMAINDER OF AREA WITHIN 22N107W TO 22N112W TO 
19N113W TO 16N113W TO 15N111W TO 18N106W TO 22N107W...INCLUDING 
NEAR CABO CORRIENTES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN 
SE TO S SWELL.
.12 HOUR FORECAST POST-TROPICAL REMNANT LOW ALVIN NEAR 21.1N 
109.5W. WITHIN 22N108W TO 22N109W TO 21N110W TO 20N109W TO 
20N108W TO 22N108W WINDS 20 TO 30 KT GUSTS TO 40 KT. SEAS 2.5 TO 
4 M. ELSEWHERE WITHIN 22N107W TO 23N108W TO 21N109W TO 23N111W TO
20N111W TO 19N108W TO 22N107W...INCLUDING NEAR CABO CORRIENTES...
WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN S SWELL.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW ALVIN NEAR 22.3N 
109.5W. WITHIN 22N108W TO 23N109W TO 22N110W TO 20N109W TO 
20N108W TO 21N108W TO 22N108W WINDS 20 TO 25 KT GUSTS 35 KT. SEAS
2.5 TO 3 M.
.36 HOUR FORECAST...REMNANT LOW DISSIPATED. WINDS 20 KT OR LESS.
SEAS LESS THAN 2.5 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.

.WITHIN 11N105W TO 13N117W TO 08N122W TO 03.4S120W TO 03.4S91W
TO 11N105W...EXCEPT LEE OF GALAPAGOS ISLANDS...WINDS 20 KT OR 
LESS. SEAS 2.5 TO 3 M IN S TO SW SWELL.
.24 HOUR FORECAST WITHIN 13N97W TO 16N121W TO 03S117W TO 
03.4S83W TO 03N93W TO 13N97W...EXCEPT LEE OF GALAPAGOS ISLANDS...
WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 07N95W TO 13N101W TO 01N105W TO 
03.4S104W TO 03.4S97W TO 07N95W WINDS 20 KT OR LESS. SEAS 2.5 TO 
3 M IN S TO SW SWELL.

.WITHIN 30N123W TO 30N128W TO 27N128W TO 27N127W TO 27N125W TO
28N124W TO 30N123W WINDS 20 KT OR LESS. SEAS TO 2.5 IN NW SWELL.
.24 HOUR FORECAST WITHIN 30N127W TO 30N133W TO 27N133W TO 
26N132W TO 27N129W TO 30N127W WINDS 20 KT OR LESS. SEAS 2.5 M 
IN NW SWELL.
.48 HOUR FORECAST WITHIN 30N125W TO 30N140W TO 21N140W TO 
22N137W TO 27N125W TO 30N125W WINDS 20 KT OR LESS. SEAS 2.5 TO 
3.0 M IN NE SWELL.

.WITHIN 18N133W TO 21N137W TO 20N140W TO 09N140W TO 08N139W TO
12N133W TO 18N133W WINDS 20 KT OR LESS. SEAS 2.5 IN MIXED SWELL.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

CONVECTION VALID AT 0915 UTC SAT MAY 31...

.TROPICAL STORM ALVIN...SCATTERED MODERATE FROM 21N TO 23N 
BETWEEN 106W AND 110W. 

.SCATTERED STRONG WITHIN 60 NM OF 15N94W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 09N85W TO 12N100W TO 10N110W
TO 07N125W. ITCZ EXTENDS FROM 07N125W TO 06N131W TO 07N140W. 
SCATTERED MODERATE FROM 07N TO 11N BETWEEN 103W AND 111W...
WITHIN 60 NM S OF THE TROUGH BETWEEN 111W AND 114W AND WITHIN 
60 NM N OF THE ITCZ BETWEEN 137W AND 140W.

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.