230
FZPN03 KNHC 252215
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED SEP 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC WED SEP 25.
24 HOUR FORECAST VALID 1800 UTC THU SEP 26.
48 HOUR FORECAST VALID 1800 UTC FRI SEP 27.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM JOHN NEAR 16.8N 101.5W 996 MB AT 2100 UTC SEP 25
MOVING N OR 355 DEG AT 3 KT. MAXIMUM SUSTAINED WINDS 45 KT GUSTS
55 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM NE QUADRANT...130
NM SE QUADRANT...100 NM SW QUADRANT...AND 0 NM NW QUADRANT.
SEAS 12 FT OR GREATER WITHIN 0 NM N SEMICIRCLE...240 NM SE
QUADRANT AND 210 NM SW QUADRANT WITH SEAS TO 16 FT. ELSEWHERE
WITHIN 15N98W TO 17N105W TO 13N105W TO 11N108W TO 11N100W TO
13N97W TO 15N98W WINDS 20 TO 33 KT. SEAS 11 TO 12 FT. REMAINDER
OF AREA WITHIN 13N90W TO 20N109W TO 11N112W TO 09N103W TO 11N88W
TO 13N90W...INCLUDING NEAR CABO CORRIENTES AND THE GULF OF
TEHUANTEPEC...WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED
SWELL.
.24 HOUR FORECAST HURRICANE JOHN NEAR 17.5N 101.5W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 70 NM NE QUADRANT...140 NM SE QUADRANT...110 NM SW
QUADRANT...AND 40 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
360 NM IN SE QUADRANT...AND 390 NM SW QUADRANT WITH SEAS TO 19
FT. ELSEWHERE WITHIN 14N97W TO 18N105W TO 14N106W TO 12N112W TO
10N109W TO 11N99W TO 14N97W WINDS 20 TO 33 KT. SEAS 11 TO 12 FT.
REMAINDER OF AREA WITHIN 16N103W TO 26N115W TO 20N113W TO 11N114W
TO 08N102W TO 12N89W TO 16N103W...INCLUDING NEAR CABO CORRIENTES
AND WITHIN 60 NM OF SHORE AND THE GULF OF TEHUANTEPEC...WINDS 20
KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.36 HOUR FORECAST TROPICAL STORM JOHN INLAND NEAR 18.0N 101.6W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
.48 HOUR FORECAST TROPICAL DEPRESSION JOHN INLAND NEAR 18.2N
102.1W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. SEAS 12 FT OR
GREATER WITHIN 420 NM IN S SEMICIRCLE WITH SEAS TO 17 FT.
ELSEWHERE WITHIN 14N97W TO 15N99W TO 15N103W TO 10N109W TO
10N103W TO 11N99W TO 14N97W WINDS 20 TO 25 KT. SEAS 11 TO 12 FT.
REMAINDER OF AREA WITHIN 16N95W TO 25N119W TO 12N116W TO 08N110W
TO 09N97W TO 16N95W...INCLUDING NEAR CABO CORRIENTES AND WITHIN
60 NM OF SHORE AND WITHIN 60 NM OF SHORE AND THE GULF OF
TEHUANTEPEC...WINDS 20 KT OR LESS. SEAS 8 TO 11 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 30N134W TO 30N140W TO 27N140W TO 28N138W TO 28N137W TO
30N134W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.24 HOUR FORECAST WITHIN 30N124W TO 30N137W TO 26N140W TO
20N140W TO 25N129W TO 30N124W WINDS 20 KT OR LESS. SEAS 8 FT IN
NW SWELL.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.24 HOUR FORECAST WITHIN 11N130W TO 12N131W TO 10N133W TO
10N132W TO 10N131W TO 10N130W TO 11N130W WINDS 20 KT OR LESS.
SEAS 8 FT IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 14N127W TO 14N128W TO 12N129W TO
11N128W TO 11N127W TO 12N126W TO 14N127W WINDS 20 KT OR LESS.
SEAS 8 FT IN NW SWELL.

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

CONVECTION VALID AT 1800 UTC WED SEP 25...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH AXIS EXTENDS FROM 13N110W TO BEYOND 09N140W.
SCATTERED MODERATE LOCALLY STRONG FROM 11N TO 14N BETWEEN 112W
AND 118W...AND FROM 09N TO 11N BETWEEN 129W AND 140W.

$$
.FORECASTER ADAMS. NATIONAL HURRICANE CENTER.