255 
FZPN03 KNHC 130923
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC SUN SEP 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SUN SEP 13.
24 HOUR FORECAST VALID 0600 UTC MON SEP 14.
48 HOUR FORECAST VALID 0600 UTC TUE SEP 15.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM NORBERT NEAR 18.0N 131.7W 1000 MB AT 0900 UTC
SEP 13 MOVING W OR 280 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 45
KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM N
SEMICIRCLE...30 NM SE QUADRANT AND 20 NM SW QUADRANT.  SEAS 4 M
OR GREATER WITHIN 120 NM N SEMICIRCLE...45 NM SE QUADRANT AND 60
NM SW QUADRANT WITH SEAS TO 6.0 M. ELSEWHERE WITHIN 22N129W TO 
23N132W TO 20N134W TO 18N133W TO 17N130W TO 18N128W TO 22N129W
WINDS 20 TO 33 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 
22N128W TO 24N134W TO 20N136W TO 16N135W TO 15N130W TO 19N127W TO
22N128W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM NORBERT NEAR 18.8N 135.8W. 
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS WITHIN 70 NM N SEMICIRCLE...10 NM SE QUADRANT AND 20 NM SW 
QUADRANT. SEAS 4 M OR GREATER WITHIN 120 NM N AND 60 NM S
SEMICIRCLES WITH SEAS TO 5.0 M. ELSEWHERE WITHIN 23N130W TO 
25N136W TO 22N139W TO 18N139W TO 16N137W TO 19N131W TO 23N130W
WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM NORBERT W OF AREA NEAR 19.4N 
141.1W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM
FORCE WINDS WITHIN 50 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE. 
SEAS 4 M OR GREATER WITHIN 150 NM NE QUADRANT WITH SEAS TO 4.5 
M. ELSEWHERE OVER FORECAST WATERS E OF 140W WITHIN 22N134W TO 24N137W TO 24N140W TO
20N140W TO 19N138W TO 20N135W TO 22N134W WINDS 20 TO 33 KT. SEAS
3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 26N134W TO 26N140W TO
18N140W TO 18N134W TO 22N131W TO 26N134W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN MIXED SWELL.

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 17N115W 1009 MB. WITHIN 20N115W TO 19N117W TO
18N116W TO 18N115W TO 16N114W TO 17N113W TO 20N115W SE WINDS 20 
TO 25 KT. SEAS 2.5 TO 3.0 M IN SE SWELL.
.24 HOUR FORECAST LOW PRESSURE...POSSIBLE TROPICAL CYCLONE...NEAR
17N117W 1007 MB. WITHIN 20N116W TO 20N119W TO 19N121W TO 17N120W
TO 16N116W TO 17N115W TO 20N116W E WINDS 20 TO 30 KT. SEAS 2.5 
TO 3.0 M.
.42 HOUR FORECAST LOW PRESSURE...POSSIBLE TROPICAL CYCLONE...NEAR
17N120W 1005 MB. WITHIN 19N119.5W TO 19N120W TO 19N121W TO 
18N121W TO 18.5N119.5W TO 19N119.5W E WINDS 30 TO 35 KT. SEAS 2.5
TO 3.0 M. ELSEWHERE WITHIN 21N118W TO 22N124W TO 19N126W TO 
17N123W TO 16N118W TO 17N116W TO 21N118W NE TO E WINDS 20 TO 30
KT. SEAS 2.5 M.
.48 HOUR FORECAST LOW PRESSURE...POSSIBLE TROPICAL CYCLONE...NEAR
17N121W 1004 MB. LITTLE CHANGE IN WINDS AND SEAS.

.SYNOPSIS AND FORECAST.

.WITHIN 11N86W TO 12N89W TO 11N90W TO 10N89W TO 10N87W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E WINDS 20 TO
25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.WITHIN 03N119W TO 00N131W TO 03.4S120W TO 01S120W TO 03.4S113W
TO 03N119W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S SWELL.
.24 HOUR FORECAST WITHIN 01N102W TO 02N123W TO 00N133W TO
03.4S120W TO 03.4S94W TO 01N102W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.0 M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 03N98W TO 04N105W TO 00N120W TO
03.4S120W TO 03.4S94W TO 03N98W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN S TO SW SWELL.

.24 HOUR FORECAST WITHIN 30N120W TO 30N124W TO 29N124W TO
28N122W TO 30N120W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N
SWELL.
.48 HOUR FORECAST WITHIN 30N121W TO 30N128W TO 29N128W TO
28N125W TO 28N122W TO 30N121W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN N SWELL.

.48 HOUR FORECAST WITHIN 16.5N94.5W TO 16.5N95W TO 16N95.5W TO
14.5N95.5W TO 14.5N95W TO 15N94.5W TO 16.5N94.5W...INCLUDING THE
GULF OF TEHUANTEPEC... N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5
M.

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

CONVECTION VALID AT 0900 UTC SUN SEP 13...

.T.S. NORBERT...NUMEROUS MODERATE TO SCATTERED STRONG WITHIN 90
NM NW AND 60 NM SE SEMICIRCLES.

.INVEST EP97...SCATTERED MODERATE WITHIN 60 NM OF CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N78W TO 07N110W...AND FROM 14N130W TO 
BEYOND 11N140W. SCATTERED MODERATE FROM 05N TO 11N EAST OF 105W.

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.