549
FZPN03 KNHC 210421
HSFEP2
HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC MON SEP 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MON SEP 21.
24 HOUR FORECAST VALID 0000 UTC TUE SEP 22.
48 HOUR FORECAST VALID 0000 UTC WED SEP 23.
.WARNINGS.
..HURRICANE WARNING
.TROPICAL STORM POLO NEAR 15.1N 104.6W 1004 MB AT 0300 UTC SEP
21 MOVING ENE OR 075 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM E
SEMICIRCLE AND 0 NM W SEMICIRCLE. SEAS 4 M OR GREATER WITHIN 60
NM E SEMICIRCLE...45 NM SW QUADRANT AND 30 NM NW QUADRANT WITH
SEAS TO 5.0 M. WITHIN 15N102W TO 17N104W TO 17N105W TO 15N107W
TO 12N105W TO 12N103W TO 15N102W WINDS 20 TO 33 KT. SEAS 2.5 TO
4.5 M.
.24 HOUR FORECAST TROPICAL STORM POLO NEAR 15.4N 103.1W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS
WITHIN 60 NM NE QUADRANT...70 NM SE QUADRANT...50 NM SW
QUADRANT...AND 40 NM NW QUADRANT. SEAS 4 M OR GREATER
WITHIN 60 NM OF CENTER EXCEPT 30 NM NW QUADRANT WITH SEAS TO 7.0
M. WITHIN 16N101W TO 17N104W TO 15N106W TO 13N105W TO 12N103W TO
13N101W TO 16N101W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.5 M.
.36 HOUR FORECAST HURRICANE POLO NEAR 15.2N 102.4W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT.
.48 HOUR FORECAST HURRICANE POLO NEAR 15.5N 102.4W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS
WITHIN 100 NM NE QUADRANT...90 NM SE QUADRANT...80 NM SW
QUADRANT...AND 70 NM NW QUADRANT. SEAS 4 M OR GREATER
WITHIN 90 NM N SEMICIRCLE AND 120 NM S SEMICIRCLE WITH SEAS TO
7.0 M. WITHIN 16N98W TO 18N104W TO 16N106W TO 12N106W TO 09N103W
TO 10N99W TO 16N98W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.5 M.
..TROPICAL STORM WARNING
.TROPICAL STORM ODALYS NEAR 13.1N 127.7W 1002 MB AT 0300 UTC SEP
21 MOVING NW OR 310 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM S
SEMICIRCLE...60 NM NE QUADRANT AND 40 NM NW QUADRANT. SEAS 4 M
OR GREATER WITHIN 120 NM NE QUADRANT...75 NM SE QUADRANT...30 NM
SW QUADRANT...AND 90 NM NW QUADRANT WITH SEAS TO 5.5 M. WITHIN
14N122W TO 18N126W TO 15N132W TO 13N130W TO 09N130W TO 09N126W TO
14N122W WINDS 20 TO 33 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST TROPICAL STORM ODALYS NEAR 15.1N 130.0W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 80 NM NE QUADRANT...50 NM SE QUADRANT...30 NM SW
QUADRANT...AND 60 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 150
NM E SEMICIRCLE...180 NM NW QUADRANT...AND 120 NM SW QUADRANT
WITH SEAS TO 7.0 M. WITHIN 20N127W TO 20N133W TO 15N134W TO
10N128W TO 10N125W TO 15N123W TO 20N127W WINDS 20 TO 33 KT. SEAS
2.5 TO 4.5 M.
.48 HOUR FORECAST TROPICAL STORM ODALYS NEAR 15.6N 129.5W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE
WINDS WITHIN 80 NM NE QUADRANT...60 NM SE QUADRANT...50 NM SW
QUADRANT...AND 70 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 180
NM OF CENTER...EXCEPT 210 NM WW QUADRANT WITH SEAS TO 8.0 M.
WITHIN 17N124W TO 21N127W TO 21N138W TO 16N139W TO 10N130W TO
10N126W TO 17N124W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.5 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.
.WITHIN 19N132W TO 23N136W TO 23N140W TO 16N140W TO 16N135W TO
17N132W TO 19N132W NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 19N134W TO 20N136W TO 23N140W TO
15N140W TO 16N136W TO 19N134W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN E SWELL.
.48 HOUR FORECAST WITHIN 18N139W TO 20N139.5W TO 20.5N140W TO
16N140W TO 16N139.5W TO 18N139.5W TO 18N139W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN E TO SE SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 0350 UTC MON SEP 21...
TROPICAL STORM POLO
NUMEROUS MODERATE AND ISOLATED STRONG
CONVECTION IS FROM 12N TO 17N BETWEEN 100W AND 108W.
TROPICAL STORM ODALYS
NUMEROUS MODERATE TO STRONG CONVECTION
IS FROM 08N TO 13N BETWEEN 125W AND 131W. SCATTERED MODERATE AND
ISOLATED STRONG CONVECTION IS FOUND ELSEWHERE FROM 01N TO 16N
BETWEEN 120W AND 140W.
TROPICAL WAVE NEAR 86W
SCATTERED MODERATE ISOLATED STRONG
CONVECTION EXTENDS FROM 02N TO 10N E OF 100W.
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
THE MONSOON TROUGH EXTENDS FROM 12N87W TO 16N98W. IT RESUMES
SW OF POLO NEAR 13N108W TO 09N120W. SCATTERED MODERATE AND
ISOLATED STRONG CONVECTION IS NOTED FROM 07N TO 12N BETWEEN 112W
AND 120W.
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.
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