625
FZPN03 KNHC 101521
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC THU SEP 10 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU SEP 10.
24 HOUR FORECAST VALID 1200 UTC FRI SEP 11.
48 HOUR FORECAST VALID 1200 UTC SAT SEP 12.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM NORBERT NEAR 16.5N 119.3W 1003 MB AT 1500 UTC SEP 10
MOVING W OR 275 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45
KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM OF CENTER EXCEPT 50 NM NE
QUADRANT. SEAS 4 M OR GREATER WITHIN 0 NM OF CENTER EXCEPT 90 NM NE
QUADRANT WITH SEAS TO 4.5 M. ELSEWHERE WITHIN 180 NM N SEMICIRCLE
AND 60 NM SE QUADRANT OF CENTER WINDS 20 TO 33 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST TROPICAL STORM NORBERT NEAR 16.5N 123.7W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 80 NM NE QUADRANT...30 NM SE QUADRANT...0 NM SW
QUADRANT...AND 40 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM N
AND 30 NM S SEMICIRCLES WITH SEAS TO 5.0 M. ELSEWHERE WITHIN 180 NM
N AND 60 NM S SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS 2.5 TO 4
M.
.48 HOUR FORECAST TROPICAL STORM NORBERT NEAR 17.0N 127.9W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 80 NM NE QUADRANT...40 NM SE QUADRANT...20 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 WITHIN 210
NM N AND 90 NM S SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS 2.5
TO 4 M.

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.

.N OF 14.5N BETWEEN 94.5W AND 95.5W...INCLUDING THE GULF OF
TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.FROM 10N TO 11.5N E OF 89W...INCLUDING THE GULF OF PAPAGAYO...NE TO
E WINDS 20 TO 25 KT. SEAS 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.S OF 00N BETWEEN 96W AND 111W WINDS 20 KT OR LESS. SEAS 2.5 M
PRIMARILY IN SW SWELL. S OF 00N BETWEEN 115W AND 118W WINDS 20 KT OR
LESS. SEAS 2.5 M PRIMARILY IN SW SWELL.
.24 HOUR FORECAST S OF 00S BETWEEN 107W AND 112W WINDS 20 KT OR
LESS. SEAS 2.5 M PRIMARILY IN SW SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

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

CONVECTION VALID AT 1500 UTC THU SEP 10...

.TROPICAL STORM NORBERT...NUMEROUS MODERATE TO STRONG FROM 14.5N
TO 17.5N BETWEEN 117W AND 120W. SCATTERED MODERATE TO ISOLATED
STRONG ELSEWHERE FROM 15N TO 19N BETWEEN 115W AND 117W.

..TROPICAL WAVE ALONG 95W...SCATTERED MODERATE TO ISOLATED STRONG
FROM 09N TO 11N BETWEEN 93W AND 97W.

.TROPICAL WAVE ALONG 110W...SCATTERED MODERATE TO ISOLATED STRONG
FROM 10N TO 17N BETWEEN 102W AND 112W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH AXIS EXTENDS FROM 09N84W TO 07N100W TO 10N111W,
THEN CONTINUES SW OF T.S. NORBERT FROM 12N120W TO 10N140W. IN
ADDITION TO THE CONVECTION ASSOCIATED WITH NORBERT AND THE TROPICAL
WAVES...SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS NOTED
FROM 03N TO 08N E OF 89W TO THE COAST OF COLOMBIA, AND FROM 00N TO
10N BETWEEN 119W AND 127W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.