787
FZPN03 KNHC 300343 RRA
HSFEP2
HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC FRI MAY 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FRI MAY 30.
24 HOUR FORECAST VALID 0000 UTC SAT MAY 31.
48 HOUR FORECAST VALID 0000 UTC SUN JUN 01.
.WARNINGS.
..TROPICAL STORM WARNING
.TROPICAL STORM ALVIN NEAR 16.0N 107.9W 999 MB AT 0300 UTC MAY
30 MOVING NW OR 325 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE
QUADRANT...70 NM SE QUADRANT...40 NM SW QUADRANT...AND 80 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 120 NM NE QUADRANT...60 NM
SE QUADRANT...30 NM SW QUADRANT AND 60 NM NW QUADRANT WITH SEAS
TO 5 M. ELSEWHERE WITHIN 18N106W TO 18N109W TO 15N110W TO
14N108W TO 14N107W TO 15N105W TO 18N106W WINDS 20 TO 33 KT. SEAS
3 TO 4 M. REMAINDER OF AREA WITHIN 17N104W TO 18N105W TO 19N108W
TO 17N110W TO 13N109W TO 13N105W TO 17N104W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3 M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM ALVIN NEAR 18.7N 109.0W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE
WINDS WITHIN 40 NM NW AND SE QUADRANTS...70 NM NE QUADRANT AND 20
NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 60 NM OF CENTER...
EXCEPT 90 NM NE QUADRANT WITH SEAS TO 4.5 M. ELSEWHERE WITHIN
20N107W TO 19N108W TO 20N109W TO 19N110W TO 17N111W TO 17N107W TO
20N107W WINDS 20 TO 33 KT. SEAS 3 TO 4 M. REMAINDER OF AREA
WITHIN 18N104W TO 21N106W TO 21N111W TO 17N115W TO 14N114W TO
13N110W TO 18N104W...INCLUDING NEAR CABO CORRIENTES...WINDS 20 KT
OR LESS. SEAS 2.5 TO 3 M IN MIXED SWELL...EXCEPT IN S TO SW
SWELL BETWEEN 104W AND 109W.
.36 HOUR FORECAST POST-TROPICAL ALVIN NEAR 20.3N 109.3W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. WITHIN 20N107W TO 21N108W TO
21N109W TO 20N110W TO 19N108W TO 19N107W TO 20N107W WINDS 20 TO
33 KT. SEAS 3 TO 4 M. ELSEWHERE WITHIN 22N106W TO 22N110W TO
20N112W TO 16N111W TO 14N109W TO 16N106W TO 22N106W...INCLUDING
NEAR CABO CORRIENTES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN
MIXED SWELL...EXCEPT IN S SWELL BETWEEN 106W AND 109W.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW ALVIN NEAR 21.9N
109.4W. WITHIN 22N107W TO 23N108W TO 23N109W TO 22N109W TO
20N108W TO 22N107W WINDS 20 TO 30 KT WITH GUSTS TO 40 KT. SEAS
2.5 TO 3 M. ELSEWHERE WITHIN 23N106W TO 24N108W TO 22N110W TO
21N110W TO 19N108W TO 21N106W TO 23N106W...INCLUDING NEAR CABO
CORRIENTES...WINDS 20 KT OR LESS. SEAS 2.5 M IN S 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 02S107W TO 00N113W TO 00N123W TO 03.4S120W TO 03.4S106W
TO 02S107W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN S TO SW
SWELL.
.24 HOUR FORECAST WITHIN 11N111W TO 07N121W TO 03.4S120W TO
03.4S93W TO 11N111W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN S TO
SW SWELL.
.48 HOUR FORECAST WITHIN 09N94W TO 15N102W TO 15N111W TO 05N118W
TO 01S108W TO 03N96W TO 09N94W WINDS 20 KT OR LESS. SEAS 2.5 TO
3 M IN S TO SW SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 0315 UTC FRI MAY 30...
TROPICAL STORM ALVIN
SCATTERED MODERATE ISOLATED STRONG WITHIN
60 NM NW OF CENTER. NUMEROUS MODERATE ELSEWHERE FROM 16N TO 21N
BETWEEN 104W AND 110W AND WITHIN 60 NM OF LINE FROM 13N104W TO
16N105W.
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
MONSOON TROUGH AXIS EXTENDS FROM 08N78W TO 08N90W TO 12N102W. IT
RESUMES TO THE SW OF ALVIN NEAR 11N111W AND CONTINUES TO 08N125W.
ITCZ EXTENDS FROM 08N125W TO 08N130W AND 07N140W. SCATTERED
MODERATE ISOLATED STRONG IS FROM 05N TO 14N BETWEEN 98W AND 102W.
SCATTERED MODERATE IS WITHIN 120 NM N OF THE ITCZ BETWEEN 126W
AND 132W.
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.
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