625
FZPN03 KNHC 102121
HSFEP2
HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC THU SEP 10.
24 HOUR FORECAST VALID 1800 UTC FRI SEP 11.
48 HOUR FORECAST VALID 1800 UTC SAT SEP 12.
.WARNINGS.
..TROPICAL STORM WARNING
.TROPICAL STORM NORBERT NEAR 16.5N 120.5W 1002 MB AT 2100 UTC SEP 10
MOVING W OR 270 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50
KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM S SEMICIRCLE...50 NM NE
QUADRANT AND 30 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 0 NM S
SEMICIRCLE...90 NM NE QUADRANT AND 30 NM NW QUADRANT WITH SEAS TO
4.5 M. ELSEWHERE WITHIN 180 NM N SEMICIRCLE AND 90 NM SE QUADRANT OF
CENTER WINDS 20 TO 33 KT. SEAS 3.0 TO 4 M. REMAINDER OF THE AREA
FROM 15N TO 20N BETWEEN 115W AND 122W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM NORBERT NEAR 16.5N 124.9W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 70 NM NE QUADRANT...30 NM SE QUADRANT...0 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 5.0 M. ELSEWHERE WITHIN 210
NM N AND 90 NM S SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS 3.0
TO 4 M. REMAINDER OF THE AREA FROM 15N TO 21N BETWEEN 121W AND 127W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM NORBERT NEAR 17.0N 129.0W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE
WINDS WITHIN 70 NM NE QUADRANT...40 NM SE QUADRANT...30 NM SW
QUADRANT...AND 60 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 240
NM N AND 90 NM S SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS 3.0
TO 4 M. REMAINDER OF THE AREA FROM 15N TO 23N BETWEEN 125W AND
133W 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.
.SYNOPSIS AND FORECAST.
N OF 14N BETWEEN 94.5W AND 95.5W
INCLUDING THE GULF OF
TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.12 HOUR FORECAST LITTLE CHANGE.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
FROM 09.5N TO 11N E OF 89W...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 WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.S OF 00N BETWEEN 98W AND 112W WINDS 20 KT OR LESS. SEAS 2.5 M
PRIMARILY IN SW SWELL.
.24 HOUR FORECAST S OF 00S BETWEEN 108W 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 2100 UTC THU SEP 10...
TROPICAL STORM NORBERT
NUMEROUS MODERATE TO SCATTERED STRONG
CONVECTION IS NOTED WITHIN 60 NM OF CENTER. SCATTERED MODERATE TO
ISOLATED STRONG CONVECTION IS ELSEWHERE FROM 15N TO 18N BETWEEN 117W
AND 119W.
.TROPICAL WAVE ALONG 96W
SCATTERED MODERATE TO ISOLATED STRONG
CONVECTION IS SEEN FROM 09N TO 11N BETWEEN 96W AND 99W.
TROPICAL WAVE ALONG 110W
SCATTERED MODERATE TO ISOLATED STRONG
CONVECTION IS OBSERVED FROM 10N TO 17N BETWEEN 102W AND 112W.
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
THE MONSOON TROUGH EXTENDS FROM 09N84W TO 07N96W TO 10N110W...THEN
CONTINUES SW OF T.S. NORBERT FROM 11N120W TO 07N130W TO 11N140W. IN
ADDITION TO THE CONVECTION ASSOCIATED WITH NORBERT AND THE TROPICAL
WAVES...SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS NOTED
FROM 03N TO 07N BETWEEN 78W AND 88W...AND FROM 00N TO 10N W OF 132W.
.FORECASTER GR. NATIONAL HURRICANE CENTER.
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