FZPN03 KNHC 231556
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC MON SEP 23 2024

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

THE NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL
OCTOBER 16 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN
DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND
GRAPHICAL PRODUCTS FOR THE HIGH SEAS AREAS ONLY.
TO LEARN MORE PLEASE VISIT (WEB ADDRESS LOWERCASE)
HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP

SECURITE

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1200 UTC MON SEP 23.
24 HOUR FORECAST VALID 1200 UTC TUE SEP 24.
48 HOUR FORECAST VALID 1200 UTC WED SEP 25.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM JOHN NEAR 14.8N 98.5W 992 MB AT 1500 UTC SEP 23
MOVING N OR 00 DEG AT 3 KT. MAXIMUM SUSTAINED WINDS 60 KT GUSTS
75 KT. TROPICAL STORM FORCE WINDS WITHIN 30 NM OF CENTER EXCEPT
40 NM NE QUADRANT. SEAS 12 FT OR GREATER WITHIN 45 NM N
SEMICIRCLE AND 75 NM S SEMICIRCLE WITH SEAS TO 15 FT. ELSEWHERE
WITHIN 15N97W TO 30N128W TO 30N131W TO 11N102W TO 10N98W TO
12N97W TO 15N97W WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF
AREA WITHIN 13N96W TO 16N98W TO 13N103W TO 14N105W TO 12N111W TO
08N97W TO 13N96W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED
SWELL.
.12 HOUR FORECAST HURRICANE JOHN NEAR 15.2N 98.3W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT.
.24 HOUR FORECAST HURRICANE JOHN NEAR 15.7N 97.9W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS
WITHIN 60 NM S SEMICIRCLE...50 NM NE QUADRANT AND 40 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 NM OF CENTER WITH SEAS
TO 18 FT. ELSEWHERE WITHIN 16N97W TO 14N100W TO 12N108W TO
11N109W TO 10N99W TO 11N96W TO 16N97W WINDS 20 TO 33 KT. SEAS 9
TO 12 FT. REMAINDER OF AREA WITHIN 12N94W TO 16N97W TO 15N101W TO
12N111W TO 09N103W TO 08N94W TO 12N94W WINDS 20 KT OR LESS. SEAS
8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM JOHN INLAND NEAR 16.2N 97.4W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 0 NM N SEMICIRCLE...40 NM SE QUADRANT AND 30 NM SW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM S OF CENTER WITH
PEAK SEAS TO 14 FT. ELSEWHERE WITHIN 15N95W TO 16N99W TO 13N100W
TO 12N110W TO 09N100W TO 11N95W TO 15N95W WINDS 20 TO 33 KT. SEAS
9 TO 12 FT. REMAINDER OF AREA WITHIN 13N89W TO 16N94W TO 17N106W
TO 11N112W TO 08N103W TO 08N92W TO 13N89W...INCLUDING THE GULF
OF TEHUANTEPEC...WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED
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 30N127W TO 30N131W TO 29N131W TO 29N129W TO 30N127W
WINDS 20 KT OR LESS. SEAS 8 FT IN N TO NW SWELL.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.WITHIN 12N121W TO 12N124W TO 11N125W TO 10N125W TO 10N121W TO
12N121W WINDS 20 KT OR LESS. SEAS 8 FT IN S TO SW SWELL.
.24 HOUR FORECAST WITHIN 13N116W TO 13N119W TO 12N122W TO
11N120W TO 11N117W TO 12N115W TO 13N116W WINDS 20 KT OR LESS.
SEAS 8 FT IN S TO SW SWELL.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

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

CONVECTION VALID AT 1200 UTC MON SEP 23...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

MONSOON TROUGH AXIS EXTENDS FROM 15N111W TO 12N140W. SCATTERED
MODERATE FROM 08N TO 11N BETWEEN 127W AND 136W.

$$
.FORECASTER ADAMS. NATIONAL HURRICANE CENTER.