000
FZPN03 KNHC 202104
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC TUE OCT 20.
24 HOUR FORECAST VALID 1800 UTC WED OCT 21.
48 HOUR FORECAST VALID 1800 UTC THU OCT 22.

.WARNINGS.

...GALE WARNING...
.WITHIN 15N95W TO 16N95W TO 14N97W TO 12N99W TO 11N97W TO 13N96W
TO 15N95W...INCLUDING THE GULF OF TEHUANTEPEC...NE WINDS 25 TO 
35 KT. SEAS 3.5 TO 4.5 M. ELSEWHERE...WITHIN 16N95W TO 12N99W TO 
11N95W TO 12N94W TO 16N95W...INCLUDING THE GULF OF 
TEHUANTEPEC...NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.12 HOUR FORECAST WITHIN 15N94W TO 16N95W TO 14N96W TO 12N100W 
TO 11N96W TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC...NE TO E
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST WITHIN 14N94W TO 16N95W TO 12N101W TO 11N97W 
TO 14N94W...INCLUDING THE GULF OF TEHUANTEPEC...NE TO E WINDS 20 
TO 30 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST WITHIN 16N95W TO 15N96W TO 15N101W TO 14N103W 
TO 11N96W TO 16N95W...INCLUDING THE GULF OF TEHUANTEPEC...E WINDS
20 TO 30 KT. SEAS 2.5 TO 3.0 M.

...GALE WARNING...
.LOW PRES NEAR 10N96W 1007 MB. WITHIN 11N97W TO 12N99W TO 10N99W
TO 10N97W TO 11N97W WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M. 
ELSEWHERE...WITHIN 10N96W TO 11N100W TO 09N101W TO 07N98W TO 
04N96W TO 06N93W TO 10N96W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M
IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
10N100W 1003 MB. WITHIN 10N97W TO 12N101W TO 09N102W TO 08N101W
TO 08N99W TO 09N97W TO 10N97W WINDS 20 TO 30 KT. SEAS 3.5 TO 4.5
M. ELSEWHERE...WITHIN 10N97W TO 11N99W TO 12N101W TO 10N103W TO
08N102W TO 06N97W TO 10N97W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5
M IN MIXED SWELL.
.30 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
10N101W 1002 MB. WITHIN 10N98W TO 11N100W TO 10N100W TO 09N100W 
TO 09N99W TO 10N98W WINDS 25 TO 35 KT. SEAS 3.5 TO 4.5 M.
ELSEWHERE...WITHIN 12N99W TO 12N101W TO 10N103W TO 08N102W TO 
08N99W TO 09N98W TO 12N99W WINDS 20 TO 30 KT. SEAS 3.0 TO 3.5 M.
REMAINDER OF AREA...WITHIN 09N96W TO 12N99W TO 12N102W TO 
09N104W TO 07N103W TO 05N97W TO 09N96W WINDS 20 KT OR LESS. SEAS 
2.5 TO 3.0 M IN MIXED SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
11N102W 1000 MB. WITHIN 10N99W TO 11N100W TO 11N101W TO 10N101W
TO 10N100W TO 10N99W WINDS 30 TO 45 KT. SEAS 4.0 TO 5.0 M.
ELSEWHERE...WITHIN 12N100W TO 14N104W TO 10N105W TO 07N102W TO 
07N99W TO 09N97W TO 12N100W WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 
M. REMAINDER OF AREA...WITHIN 10N96W TO 14N104W TO 12N106W TO 
09N106W TO 05N100W TO 07N96W TO 10N96W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.5 M.

.SYNOPSIS AND FORECAST.

.WITHIN 30N130W TO 30N139W TO 29N137W TO 29N133W TO 29N132W TO
30N130W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.24 HOUR FORECAST WITHIN 29N126W TO 30N138W TO 28N137W TO 
26N132W TO 27N127W TO 29N126W WINDS 20 KT OR LESS. SEAS 3.5 TO 
5.0 M IN N SWELL. ELSEWHERE...WITHIN 30N121W TO 30N140W TO 
25N140W TO 24N129W TO 26N125W TO 30N121W WINDS 20 KT OR LESS. 
SEAS 2.5 TO 3.5 M IN N SWELL.
.48 HOUR FORECAST WITHIN 29N120W TO 30N140W TO 19N140W TO 
18N132W TO 21N123W TO 29N120W WINDS 20 KT OR LESS. SEAS 2.5 TO 
3.5 M IN N SWELL.

.36 HOUR FORECAST WITHIN 31N114W TO 31N115W TO 30N114W TO 
31N113W TO 31N114W...INCLUDING THE GULF OF CALIFORNIA...S TO SW 
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST CONDITIONS IMPROVE.

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

CONVECTION VALID AT 2030 UTC TUE OCT 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 10N86W TO 04N106W. ITCZ EXTENDS FROM
04N106W TO 09N112W AND FROM 06N130W TO 03N140W. SCATTERED 
MODERATE ISOLATED STRONG FROM 00N TO 15N E OF 105W AND FROM 01N 
TO 08N AND W OF 130W.

$$
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.