953
FZPN03 KNHC 261618
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC THU SEP 26 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU SEP 26.
24 HOUR FORECAST VALID 1200 UTC FRI SEP 27.
48 HOUR FORECAST VALID 1200 UTC SAT SEP 28.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE JOHN NEAR 17.5N 102.7W 979 MB AT 1500 UTC SEP 26
MOVING NW OR 325 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 65 KT
GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM NE
QUADRANT...120 NM SE QUADRANT...60 NM SW QUADRANT...AND 50 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 30 NM NE QUADRANT...360
NM SE QUADRANT...300 NM SW QUADRANT...AND 90 NM NW QUADRANT WITH
SEAS TO 21 FT. ELSEWHERE WITHIN 22N110W TO 10N114W TO 08N106W TO
12N88W TO 22N110W...INCLUDING NEAR CABO CORRIENTES AND THE GULF
OF TEHUANTEPEC...WINDS 20 TO 33 KT. SEAS 11 TO 13 FT. REMAINDER
OF AREA WITHIN 26N113W TO 27N116W TO 26N117W TO 21N115W TO
22N112W TO 26N113W...INCLUDING WITHIN 60 NM OF SHORE...WITHIN 60
NM OF SHORE...WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.24 HOUR FORECAST TROPICAL STORM JOHN INLAND NEAR 18.6N 103.4W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 10 NM NE QUADRANT...80 NM SE QUADRANT...40 NM SW
QUADRANT...AND 20 NM NW QUADRANT. SEAS 12 FT OR GREATER
WITHIN 330 SW SEMICIRCLE AND 0 NM NE SEMICIRCLE WITH SEAS TO 18
FT. ELSEWHERE WITHIN 22N109W TO 18N115W TO 11N116W TO 08N103W TO
13N89W TO 22N109W...INCLUDING NEAR CABO CORRIENTES AND THE GULF
OF TEHUANTEPEC...WINDS 20 TO 33 KT. SEAS 11 TO 13 FT. REMAINDER
OF AREA WITHIN 30N116W TO 30N119W TO 24N119W TO 20N116W TO
20N110W TO 22N110W TO 30N116W...INCLUDING SEBASTIAN VIZCAINO BAY
AND WITHIN 60 NM OF SHORE...WINDS 20 KT OR LESS. SEAS 8 TO 10 FT
IN NW SWELL.
.36 HOUR FORECAST TROPICAL DEPRESSION JOHN INLAND NEAR 19.2N
104.2W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW JOHN NEAR 19.8N
105.4W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 15N94W
TO 18N103W TO 29N117W TO 10N119W TO 06N108W TO 08N96W TO
15N94W...INCLUDING NEAR CABO CORRIENTES AND THE GULF OF
CALIFORNIA AND SEBASTIAN VIZCAINO BAY AND WITHIN 60 NM OF SHORE
AND THE GULF OF TEHUANTEPEC...WINDS 20 KT OR LESS. SEAS 8 TO 11
FT IN NW 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 30N138W TO 28N140W TO 21N140W TO 26N131W TO
30N127W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.15 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 1550 UTC THU SEP 26...

.HURRICANE JOHN...NUMEROUS MODERATE TO STRONG FROM 11N TO 19N
BETWEEN 97W AND 111W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS WEST OF HURRICANE JOHN NEAR 13N112W
TO 12N127W AND BEYOND 09N140W. SCATTERED MODERATE FROM 01N E OF
84W...AND FROM 09N TO 15N BETWEEN 114W AND 136W.

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.