000
FZPN03 KNHC 241604
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC THU SEP 24 2020

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 24.
24 HOUR FORECAST VALID 1200 UTC FRI SEP 25.
48 HOUR FORECAST VALID 1200 UTC SAT SEP 26.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM LOWELL NEAR 21.5N 124.9W 1003 MB AT 1500 UTC SEP
24 MOVING WNW OR 285 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM E
SEMICIRCLE AND 0 NM W SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 
120 NM NE QUADRANT...60 NM SE QUADRANT...90 NM SW QUADRANT...AND 
150 NM NW QUADRANT WITH SEAS TO 19 FT. ELSEWHERE WITHIN 19N124W
TO 20N127W TO 22N128W TO 25N124W TO 23N122W TO 19N124W WINDS 20 
TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 19N123W TO 
18N126W TO 21N128W TO 26N125W TO 24N120W TO 19N123W WINDS 20 KT 
OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM LOWELL NEAR 21.8N 128.7W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE 
WINDS WITHIN 0 NM S SEMICIRCLE...50 NM NE QUADRANT AND 40 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM N SEMICIRCLE AND
90 NM S SEMICIRCLE WITH SEAS TO 18 FT. ELSEWHERE WITHIN 20N127W
TO 21N131W TO 26N131W TO 26N128W TO 24N126W TO 20N127W WINDS 20 
TO 33 KT. SEAS 8 TO 12 FT.
.36 HOUR FORECAST TROPICAL DEPRESSION LOWELL NEAR 21.7N 131.2W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 12 FT OR 
GREATER WITHIN 270 NM N SEMICIRCLE AND 120 NM S SEMICIRCLE WITH
SEAS TO 17 FT. ELSEWHERE WITHIN 20N130W TO 23N136W TO 26N135W 
TO 26N131W TO 24N128W TO 20N130W WINDS 20 TO 30 KT. SEAS 8 TO 12 
FT.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW LOWELL NEAR 21.5N 
133.7W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 12 FT OR 
GREATER WITHIN 210 NM N SEMICIRCLE 120 NM S SEMICIRCLE WITH SEAS
TO 17 FT. ELSEWHERE WITHIN 19N132W TO 20N135W TO 25N136W TO 
26N133W TO 24N130W TO 19N132W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW LOWELL NEAR 21.4N 
139.2W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW LOWELL NEAR 21.5N 
144.0W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW LOWELL NEAR 21.5N 
148.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.

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 29N136W TO 27N140W TO 30N140W TO 30N134W TO 29N136W
WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL.
.24 HOUR FORECAST WITHIN 18N128W TO 17N140W TO 30N140W TO 
26N131W TO 30N119W TO 18N128W WINDS 20 KT OR LESS. SEAS 8 TO 12 
FT IN NW SWELL.
.48 HOUR FORECAST WITHIN 10N140W TO 27N140W TO 24N130W TO 
30N116W TO 10N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW TO
N SWELL.

.WITHIN 07N89W TO 07N94W TO 07N97W TO 08N98W TO 09N89W TO 07N89W
WINDS 20 KT OR LESS. SEAS 8 FT IN S TO SW SWELL.
.24 HOUR FORECAST WITHIN 10N97W TO 09N98W TO 09N99W TO 11N98W TO
10N97W WINDS 20 KT OR LESS. SEAS 8 FT IN SW SWELL.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.36 HOUR FORECAST WITHIN 03.4S116W TO 03.4S120W TO 03S120W TO
02.5S118.5W TO 02.5S117W TO 03.4S116W WINDS 20 KT OR LESS. SEAS
8 FT IN MIXED SE AND SW SWELL.
.48 HOUR FORECAST WITHIN 03.4S111W TO 03.4S120W TO 02S120W TO 
02S116W TO 03.4S111W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED
SE AND SW SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 1520 UTC THU SEP 24...

.TROPICAL STORM LOWELL...SCATTERED MODERATE WITHIN 60 NM OF
CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N86W TO 09N94W TO 10N107W THEN CONTINUES
FROM 15N124W TO 10N140W. SCATTERED MODERATE ISOLATED STRONG 
FROM 05N TO 09N BETWEEN 78W AND 85W...FROM 07N TO 16N BETWEEN 
86W AND 99W...FROM 08N TO 12N BETWEEN 99W AND 104W...AND ALSO 
FROM 11N TO 14N BETWEEN 120W AND 127W. SCATTERED MODERATE 
FROM 08N TO 10N BETWEEN 104W AND 108W...FROM 06N TO 12N BETWEEN 
109W AND 114W...AND ALSO FROM 09N TO 13N BETWEEN 134W AND 140W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.