766
FZPN03 KNHC 121539
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SAT SEP 12 2026

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 1200 UTC SAT SEP 12.
24 HOUR FORECAST VALID 1200 UTC SUN SEP 13.
48 HOUR FORECAST VALID 1200 UTC MON SEP 14.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM NORBERT NEAR 17.3N 128.3W 999 MB AT 1500 UTC SEP 12
MOVING WNW OR 285 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 50 KT GUSTS
60 KT. TROPICAL STORM FORCE WINDS WITHIN 25 NM S SEMICIRCLE...80 NM
NE QUADRANT AND 90 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 150 NM
N SEMICIRCLE...30 NM SE QUADRANT AND 90 NM SW QUADRANT WITH SEAS TO
6.0 M. ELSEWHERE FROM 16N TO 20N BETWEEN 125W AND 131W WINDS 20 TO
33 KT. SEAS 2.5 TO 4.0 M FROM 14N TO 22N BETWEEN 124W AND 132W.
.24 HOUR FORECAST TROPICAL STORM NORBERT NEAR 18.1N 131.6W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 90 NM N SEMICIRCLE AND 40 NM S SEMICIRCLE. SEAS 4 M OR
GREATER WITHIN 120 NM N AND 75 NM S SEMICIRCLES WITH SEAS TO 7.0 M.
ELSEWHERE FROM 17N TO 21N BETWEEN 129W AND 133W WINDS 20 TO 33 KT.
SEAS 2.5 TO 4.0 M FROM 15N TO 23N BETWEEN 128W AND 136W.
.48 HOUR FORECAST TROPICAL STORM NORBERT NEAR 18.6N 136.0W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 80 NM NE QUADRANT...40 NM SE QUADRANT...30 NM SW
QUADRANT...AND 50 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 120 NM
N AND 60 NM S SEMICIRCLES WITH SEAS TO 6.0 M. ELSEWHERE FROM 18N TO
22N BETWEEN 133W AND 138W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M FROM
16N TO 25N BETWEEN 131W AND 139W.

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

...GALE WARNING...
.LOW PRESSURE NEAR 15.5N114W 1006 MB. WITHIN 150 NM NE SEMICIRCLE
WINDS 20 TO 30 KT WITH HIGHER GUSTS. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST LOW PRESSURE...POSSIBLE TROPICAL CYCLONE...NEAR
16N115.5W 1005 MB. WITHIN 120 NM NE SEMICIRCLE WINDS 30 TO 35 KT.
SEAS 3.0 TO 4.5 M. ELSEWHERE WITHIN 150 NM NE AND 90 NM SW
SEMICIRCLES WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST LOW PRESSURE...POSSIBLE TROPICAL CYCLONE...NEAR
16N118W 1004 MB. WITHIN 150 NM N SEMICIRCLE WINDS 30 TO 40 KT. SEAS
3.0 TO 4.5 M. ELSEWHERE WITHIN 180 NM N AND 120 NM S SEMICIRCLES
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.

.SYNOPSIS AND FORECAST.

.FROM 10N TO 11N E OF 90W...INCLUDING THE GULF OF PAPAGAYO...NE TO
E WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.S OF 00N BETWEEN 110W AND 120W WINDS 20 KT OR LESS. SEAS 2.5 M
PRIMARILY IN SW SWELL.
.24 HOUR FORECAST S OF 00S BETWEEN 117W AND 120W WINDS 20 KT OR
LESS. SEAS 2.5 M PRIMARILY IN SW SWELL.
.48 HOUR FORECAST S OF 00S BETWEEN 100W AND 116W WINDS 20 KT OR
LESS. SEAS 2.5 M PRIMARILY IN SW SWELL.

.42 HOUR FORECAST N OF 29N BETWEEN 118W AND 122W NW WINDS 20 TO 25
KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LITTLE CHANGE.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

CONVECTION VALID AT 1500 UTC SAT SEP 12...

.T.S. NORBERT...NUMEROUS MODERATE TO STRONG WITHIN 150 NM NW
SEMICIRCLE.

.LOW PRESSURE (EP97)...NUMEROUS MODERATE WITHIN 60 NM OF CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 10N85W TO 07N95W TO 16N115W TO
13N110W, AND FROM 13N130W TO BEYOND 13N140W. IN ADDITION TO THE
CONVECTION ASSOCIATED WITH T.S. NORBERT AND INVEST EP97...SCATTERED
MODERATE CONVECTION IS FOUND FROM 03N TO 12N BETWEEN 80W AND 95W...
FROM 07N TO 11N BETWEEN 105W AND 111W...AND FROM 08N TO 16N BETWEEN
116W AND 125W. SCATTERED MODERATE TO ISOLATED STRONG IS NOTED FROM
04N TO 09N W OF 130W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.