762 
FZPN03 KNHC 200323
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC TUE OCT 20 2026

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE OCT 20.
24 HOUR FORECAST VALID 0000 UTC WED OCT 21.
48 HOUR FORECAST VALID 0000 UTC THU OCT 22.

.WARNINGS.

...GALE WARNING...
.WITHIN 16N94W TO 16N95W TO 15N96W TO 15N95W TO 15N94W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 40
KT. SEAS 2.5 TO 3.5 M. ELSEWHERE WITHIN 15N94W TO 16N94W TO 
16N95W TO 14N97W TO 12N97W TO 12N96W TO 15N94W N TO NE WINDS 20 
TO 30 KT. SEAS 2.5 TO 3.0 M. REMAINDER OF AREA WITHIN 13N94W TO 
15N96W TO 13N99W TO 07N102W TO 03N98W TO 03N95W TO 13N94W WINDS 
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N95W TO 
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 25 TO 35 KT.
SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 14N95W TO 15N95W TO 16N96W 
TO 13N98W TO 12N98W TO 11N97W TO 14N95W NE TO E WINDS 25 TO 35 
KT. SEAS 2.5 TO 3.0 M. REMAINDER OF AREA WITHIN 14N95W TO 14N98W 
TO 10N102W TO 09N102W TO 08N100W TO 11N95W TO 14N95W WINDS 20 KT 
OR LESS. SEAS 2.5 TO 3.0 M IN NE SWELL.
.30 HOUR FORECAST WITHIN 14N95W TO 16N95W TO 14N96W TO 13N99W TO
12N99W TO 12N97W TO 14N95W...INCLUDING THE GULF OF 
TEHUANTEPEC...NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE 
WITHIN 13N95W TO 11N98W TO 13N99W TO 11N101W TO 08N102W TO 09N97W
TO 13N95W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE SWELL.
.48 HOUR FORECAST WITHIN 16N94W TO 14N99W TO 13N101W TO 11N97W 
TO 13N95W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...NE TO E
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.

.SYNOPSIS AND FORECAST.

.POST-TROPICAL CYCLONE TRUDY NEAR 19.5N 108.0W 1005 MB AT 0300
UTC OCT 20 MOVING N OR 360 DEG AT 2 KT. MAXIMUM SUSTAINED WINDS
30 KT GUSTS 40 KT. WITHIN 20N107W TO 20N108W TO 20N109W TO 
19N109W TO 18N107W TO 19N107W TO 20N107W WINDS 20 TO 30 KT. SEAS
2.5 TO 3.0 M. WITHIN 21N107W TO 21N108W TO 21N110W TO 19N110W TO
18N107W TO 19N106W TO 21N107W WINDS 20 KT OR LESS. SEAS 2.5 TO 
3.0 M IN SE TO S SWELL.
.12 HOUR FORECAST POST-TROPICAL REMNANT LOW TRUDY NEAR 19.3N 
108.6W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. 
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW TRUDY NEAR 19.4N 
109.2W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 20N108W
TO 20N109W TO 20N110W TO 19N110W TO 19N108W TO 20N108W WINDS 20 
TO 25 KT. SEAS LESS THAN 2.5 M.
.36 HOUR FORECAST POST-TROPICAL REMNANT LOW TRUDY NEAR 19.6N 
109.9W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.48 HOUR FORECAST...DISSIPATED.

.WITHIN 30N125W TO 30N128W TO 29N130W TO 28N130W TO 28N128W TO
29N125W TO 30N125W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN W
SWELL.
.24 HOUR FORECAST WITHIN 30N130W TO 30N140W TO 29N136W TO
29N134W TO 30N130W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW
SWELL.
.48 HOUR FORECAST WITHIN 30N120W TO 30N140W TO 24N140W TO
22N134W TO 25N124W TO 30N120W WINDS 20 KT OR LESS. SEAS 2.5 TO
4.0 M IN N SWELL.

.36 HOUR FORECAST NEW LOW PRES...POSSIBLE TROPICAL CYCLONE... 
NEAR 09N100W 1006 MB. WITHIN 11N97W TO 12N100W TO 09N102W TO 
06N98W TO 07N96W TO 09N98W TO 11N97W WINDS 20 TO 25 KT. SEAS 2.5 
TO 3.0 M IN NE TO E SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
09.5N100.5W 1004 MB. WITHIN 12N100W TO 12N101W TO 11N103W TO 
08N102W TO 08N100W TO 09N99W TO 12N100W WINDS 20 TO 30 KT. SEAS 
2.5 TO 3.0 M. ELSEWHERE WITHIN 10N97W TO 12N101W TO 11N103W TO 
07N102W TO 05N98W TO 06N97W TO 10N97W WINDS 20 KT OR LESS. SEAS 
2.5 TO 3.0 M IN S SWELL.

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

CONVECTION VALID AT 0230 UTC TUE OCT 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N84W TO A 1009 MB LOW PRES NEAR 10.5N94W 
TO 04N107W. ITCZ FROM 04N107W TO BEYOND 05N140W. SCATTERED 
MODERATE TO ISOLATED STRONG FROM 00N TO 15N E OF 104W...AND FROM 
01N TO 08N AND W OF 129W. 

$$ 
.FORECASTER ERA. NATIONAL HURRICANE CENTER.