251
FZPN03 KNHC 240326
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC TUE SEP 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC TUE SEP 24.
24 HOUR FORECAST VALID 0000 UTC WED SEP 25.
48 HOUR FORECAST VALID 0000 UTC THU SEP 26.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE JOHN NEAR 16.3N 98.8W 959 MB AT 0300 UTC SEP 24
MOVING N OR 350 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 105 KT
GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM OF CENTER
EXCEPT 30 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 10 NM N
SEMICIRCLE...90 NM SE QUADRANT AND 60 NM SW QUADRANT WITH SEAS
TO 19 FT. ELSEWHERE WITHIN 240 NM SE AND 300 NM SW QUADRANTS OF
CENTER WINDS 20 TO 33 KT. SEAS 9 TO 14 FT. FROM 09N TO 12N
BETWEEN 95W AND 99W AND FROM 09N TO 11N BETWEEN 99W AND 112W SW
TO W WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. FROM 06N TO 09N BETWEEN
95W AND 101W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW TO N
SWELL.
.12 HOUR FORECAST TROPICAL STORM JOHN INLAND NEAR 17.0N 98.9W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. OVER FORECAST WATERS
FROM 09N TO 16N BETWEEN 95W AND 102W AND FROM 09N TO 15N BETWEEN
102W AND 112W SW TO W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT...
EXCEPT 10 TO 14 FT FROM 11N TO 14N BETWEEN 96W AND 103W.
.24 HOUR FORECAST POST-TROPICAL JOHN WELL INLAND NEAR 17.5N
99.1W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. OVER FORECAST
WATERS FROM 09N TO 16N BETWEEN 95W AND 102W SW WINDS 20 TO 30 KT.
SEAS 8 TO 12 FT...EXCEPT 11 TO 14 FT FROM 11N TO 16N BETWEEN 97W
AND 102W. FROM 08N TO 12N BETWEEN 102W AND 118W SW WINDS 20 TO
25 KT. SEAS 8 TO 10 FT. FROM 07N TO 09N BETWEEN 88W AND 102W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW TO N SWELL.
.36 HOUR FORECAST...DISSIPATED. FROM 11N TO 15N BETWEEN 96W AND
102W SW WINDS 20 TO 30 KT. SEAS 11 TO 17 FT. LITTLE CHANGE
ELSEWHERE.
.48 HOUR FORECAST LITTLE CHANGE.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

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

CONVECTION VALID AT 0315 UTC TUE SEP 24...

.HURRICANE JOHN...NUMEROUS STRONG WITHIN 120 NM E SEMICIRCLE
...90 SW QUADRANT AND 60 NM NW QUADRANT. SIMILAR CONVECTION IS
FROM 16N TO 19N BETWEEN 100W AND 104W. NUMEROUS MODERATE
ISOLATED STRONG FROM 12N TO 15N BETWEEN 96W AND 102W.

.SCATTERED TO NUMEROUS MODERATE ISOLATED STRONG FROM 11N TO
14N BETWEEN 88W AND 96W AND FROM 11M TO 18N BETWEEN 104W
AND 110W.

.SCATTERED MODERATE FROM 06N TO 10N BETWEEN 80W AND 87W AND
FROM 06N TO 08N BETWEEN 88W AND 92W AND WITHIN 60 NM OF 17N106W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 14N110W TO 14N123W TO 10N129W
TO 12N140W. SCATTERED MODERATE WITHIN 120 NM S OF THE TROUGH
BETWEEN 110W AND 113W.

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.