000
FZPN03 KNHC 170834
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC MON APR 17 2023

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MON APR 17.
24 HOUR FORECAST VALID 0600 UTC TUE APR 18.
48 HOUR FORECAST VALID 0600 UTC WED APR 19.

.WARNINGS.

...GALE WARNING...
.GULF OF TEHUANTEPEC WITHIN 16N94.5W TO 16N95W TO 16N95.5W TO 
15.5N95.5W TO 15N95W TO 15N94.5W TO 16N94.5W N WINDS 20 TO 30 
KT. SEAS TO 8 FT.
.03 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15.5N N WINDS 30 TO 
35 KT. SEAS TO 9 FT. ELSEWHERE WITHIN 16N94W TO 16N95W TO 15N96W 
TO 14N95W TO 15N95W TO 16N94W N WINDS 20 TO 30 KT. SEAS 8 TO 9 
FT.
.12 HOUR FORECAST WITHIN 15N95W TO 16N95W TO 14N95W TO 13N96W TO
14N95W TO 15N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE 
WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. ELSEWHERE WITHIN 14N94W TO 
15N94W TO 15N95W TO 14N96W TO 13N96W TO 13N95W TO 14N94W WINDS 20
KT OR LESS. SEAS 8 TO 9 FT IN N TO NE SWELL.
.24 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND
95.5W N TO NE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.33 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.SYNOPSIS AND FORECAST.

.WITHIN 16N131W TO 13N136W TO 13N133W TO 12N131W TO 14N129W TO
16N131W NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT IN N TO NE SWELL.
ELSEWHERE WITHIN 10N115W TO 13N124W TO 17N131W TO 12N140W TO 
07N136W TO 06N125W TO 10N115W WINDS 20 KT OR LESS. SEAS 8 TO 9 
FT IN N SWELL.
.24 HOUR FORECAST WITHIN 10N129W TO 14N135W TO 13N140W TO 
06N140W TO 05N136W TO 07N121W TO 10N129W WINDS 20 KT OR LESS. 
SEAS 8 TO 9 FT IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 09N137W TO 11N137W TO 12N140W TO 
05N140W TO 07N134W TO 08N133W TO 09N137W WINDS 20 KT OR LESS. 
SEAS 8 FT IN NE SWELL.

.12 HOUR FORECAST WITHIN 30N120W TO 30N120.5W TO 30N120W WINDS
20 KT OR LESS. SEAS 8 FT IN NW SWELL.
.24 HOUR FORECAST WITHIN 30N117W TO 30N123W TO 29N123W TO 
28N121W TO 28N119W TO 29N117W TO 30N117W WINDS 20 KT OR LESS. 
SEAS 8 TO 9 FT IN NW SWELL.
.48 HOUR FORECAST WITHIN 29N115W TO 30N140W TO 26N140W TO 
27N126W TO 27N115W TO 29N115W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN NW TO N SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 0800 UTC MON APR 17...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
A SURFACE TROUGH EXTENDS FROM NEAR 10N75W TO 04N80W TO 06N88W TO
02N102W...WHERE IT TRANSITIONS TO ITCZ AND CONTINUES TO 03N107W 
TO 06N118W TO 03N133W TO BEYOND 04.5N140W. SCATTERED MODERATE 
ISOLATED STRONG CONVECTION IS E OF A LINE FROM 10N85W TO 05N91W 
TO 03.4S98W TO THE COASTLINE. SCATTERED TO LOCALLY NUMEROUS 
MODERATE TO STRONG CONVECTION FROM 04N TO 10N W OF 117W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.