339
FZPN03 KNHC 240908
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC TUE SEP 24.
24 HOUR FORECAST VALID 0600 UTC WED SEP 25.
48 HOUR FORECAST VALID 0600 UTC THU SEP 26.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM JOHN JUST INLAND NEAR 17.3N 100.0W 990 MB AT
0900 UTC SEP 24 MOVING NW OR 310 DEG AT 7 KT. MAXIMUM SUSTAINED
WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 30 NM
N SEMICIRCLE AND 40 NM S SEMICIRCLE. SEAS 12 FT OR GREATER
WITHIN 90 NM SE QUADRANT WITH SEAS TO 16 FT. ELSEWHERE OVER
FORECAST WATERS WITHIN 240 NM SE AND 360 NM SW QUADRANTS OF
CENTER WINDS 20 TO 33 KT. SEAS 9 TO 14 FT. FROM 09N TO 13N
BETWEEN 96W AND 100W AND FROM 09N TO 11N BETWEEN 100W AND 113W
SW TO W WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. FROM 06N TO 09N
BETWEEN 93W AND 100W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW
TO N SWELL.
.12 HOUR FORECAST TROPICAL DEPRESSION JOHN INLAND NEAR 17.4N
100.8W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 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 14N BETWEEN 102W AND 115W SW TO W WINDS 20
TO 25 KT. SEAS 8 TO 10 FT. FROM 07N TO 09N BETWEEN 90W AND 100W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW TO N SWELL.
.24 HOUR FORECAST TROPICAL DEPRESSION JOHN OVER WATER NEAR 17.0N
101.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. FROM 09N TO
16N BETWEEN 95W AND 102W SW WINDS 20 TO 30 KT. SEAS 8 TO 12
FT...EXCEPT 11 TO 16 FT FROM 11N TO 16N BETWEEN 97W AND 102W.
FROM 08N TO 13N BETWEEN 102W AND 118W SW TO W 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.
.48 HOUR FORECAST TROPICAL DEPRESSION JOHN NEAR 16.9N 100.6W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. 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 0845 UTC TUE SEP 24...

.TROPICAL STORM JOHN...NUMEROUS STRONG WITHIN 120 NM NE
QUADRANT...210 SE QUADRANT...150 NM SW QUADRANT AND 60 NM NW
QUADRANT.

.NUMEROUS STRONG FROM 15N TO 18N BETWEEN 101W AND 105W AND N
OF 10N BETWEEN 85W AND 89W.

.SCATTERED MODERATE TO ISOLATED STRONG FROM 11N TO 13N BETWEEN
89W AND 93W AND FROM 20N TO 22N BETWEEN 105W AND 106W.

.SCATTERED MODERATE FROM 12N TO 14N BETWEEN 93W AND 97W AND
FROM 06N TO 09N BETWEEN 88W AND 92W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 14N108W TO 14N121W TO 10N130W
TO 12N140W. SCATTERED MODERATE WITHIN 120 NM S OF THE TROUGH
BETWEEN 108W AND 112W AND WITHIN 30 NM OF THE TROUGH BETWEEN
126W AND 129W.

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.