289
FZPN03 KNHC 310403
HSFEP2
HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SAT MAY 31.
24 HOUR FORECAST VALID 0000 UTC SUN JUN 01.
48 HOUR FORECAST VALID 0000 UTC MON JUN 02.
.WARNINGS.
..TROPICAL STORM WARNING
.TROPICAL STORM ALVIN NEAR 19.1N 109.1W 1003 MB AT 0300 UTC MAY
31 MOVING N OR 350 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM E
SEMICIRCLE...0 NM SW QUADRANT AND 80 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 19N107W TO 20N108W TO
20N109W TO 19N110W TO 18N110W TO 18N107W TO 19N107W WINDS
20 TO 33 KT. SEAS 3 TO 4 M. REMINDER OF AREA WITHIN 20N105W TO
22N108W TO 20N113W TO 15N114W TO 13N112W TO 14N108W TO 20N105W
..INCLUDING NEAR CABO CORRIENTES
WINDS 20 KT OR LESS. SEAS
2.5 TO 3 M IN S SWELL.
.12 HOUR FORECAST TROPICAL DEPRESSION ALVIN NEAR 20.3N 109.3W.
WITHIN 21N108W TO 22N109W TO 21N110W TO 19N110W TO 19N108W TO
21N108W WINDS 20 TO 30 KT WITH GUSTS TO 40 KT. SEAS 3 TO 4 M.
ELSEWHERE WITHIN 20N106W TO 22N107W TO 21N112W TO 20N112W TO
17N109W TO 18N107W TO 20N106W...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 21.7N
109.4W. WITHIN 22N108W TO 23N110W TO 21N111W TO 20N109W TO
20N107W TO 22N108W...INCLUDING NEAR CABO CORRIENTES...S TO SW
WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M IN S SWELL.
.36 HOUR FORECAST POST-TROPICAL REMNANT LOW ALVIN NEAR 23.0N
109.4W. WITHIN 22N108W TO 23N108W TO 22N109W TO 21N109W TO
20N110W TO 21N107W TO 22N108W WINDS 20 KT OR LESS. SEAS TO 2.5 M
IN DECAYING S TO SW SWELL.
48 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 10N109W TO 10N132W TO 01N130W TO 03.4S120W TO 03.4S96W
TO 00N96W TO 10N109W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN S
TO SW SWELL.
.24 HOUR FORECAST WITHIN 14N98W TO 19N111W TO 16N123W TO
03.4S119W TO 03.4S82W TO 14N98W...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 07N93W TO 15N98W TO 08N107W TO 02S106W
TO 03.4S98W TO 07N93W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN S
TO SW SWELL.
.WITHIN 13N133W TO 14N136W TO 14N140W TO 08N140W TO 09N133W TO
11N132W TO 13N133W WINDS 20 KT OR LESS. SEAS 2.5 IN MIXED SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST WITHIN 30N125W TO 30N130W TO 28N130W TO
27N128W TO 28N126W TO 30N125W WINDS 20 KT OR LESS. SEAS 2.5
IN NW SWELL.
.24 HOUR FORECAST WITHIN 30N126W TO 30N132W TO 28N134W TO
26N134W TO 26N131W TO 28N128W TO 30N126W WINDS 20 KT OR LESS.
SEAS 2.5 M IN NW SWELL.
.48 HOUR FORECAST WITHIN 30N123W TO 30N140W TO 22N140W TO
27N126W TO 30N123W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE
SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 0345 UTC SAT MAY 31...
TROPICAL STORM ALVIN
NUMEROUS MODERATE ISOLATED STRONG N OF
20N BETWEEN 106W AND 110W.
.AREA OF SCATTERED MODERATE TO ISOLATED FROM 10N TO 20N BETWEEN
100W AND 105W.
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
MONSOON TROUGH AXIS EXTENDS FROM 10N85W TO 11N95W TO 10N105W TO
08N120W. ITCZ EXTENDS FROM 08N120W TO 08N130W TO 08N140W.
SCATTERED MODERATE ISOLATED STRONG FROM 04N TO 10N BETWEEN
83W AND 91W. SCATTERED MODERATE WITHIN 60 NM OF THE TROUGH
BETWEEN 103W AND 115W.
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.
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