000
FZPN03 KNHC 230905
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC WED SEP 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC WED SEP 23.
24 HOUR FORECAST VALID 0600 UTC THU SEP 24.
48 HOUR FORECAST VALID 0600 UTC FRI SEP 25.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM LOWELL NEAR 19.8N 119.9W 1001 MB AT 0900 UTC SEP
23 MOVING WNW OR 295 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM S
SEMICIRCLE...100 NM NE QUADRANT AND 60 NM NW QUADRANT. SEAS 12 
FT OR GREATER WITHIN 180 NM NE...120 NM SE...30 NM SW AND 90 NM 
NW QUADRANTS WITH SEAS TO 20 FT. ELSEWHERE WITHIN 18N117W TO 
19N122W TO 22N122W TO 23N120W TO 21N116W TO 18N117W WINDS 20 TO 
33 KT. SEAS 9 TO 12 FT. REMAINDER AREA WITHIN 19N115W TO 17N118W 
TO 20N123W TO 24N121W TO 24N114W TO 19N115W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM LOWELL NEAR 20.7N 123.0W. 
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS WITHIN 60 NM NW AND SE QUADRANTS...70 NM NE QUADRANT AND 50
NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM NE...90 NM 
SE...60 NM SW AND 150 NM NW QUADRANTS WITH SEAS TO 24 FT. 
ELSEWHERE WITHIN 20N121W TO 20N126W TO 23N126W TO 24N122W TO 
22N121W TO 20N121W WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER 
AREA WITHIN 21N119W TO 18N123W TO 20N127W TO 24N127W TO 25N120W 
TO 21N119W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM LOWELL NEAR 21.1N 126.9W. 
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS WITHIN 70 NM N AND 50 NM S SEMICIRCLE. SEAS 12 FT OR 
GREATER WITHIN 150 NM N AND 75 NM S SEMICIRCLES WITH SEAS TO 25 
FT. ELSEWHERE WITHIN 20N125W TO 20N128W TO 23N130W TO 25N128W TO 
22N124W TO 20N125W WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER 
AREA WITHIN 19N124W TO 18N130W TO 21N132W TO 27N130W TO 26N126W 
TO 19N124W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM LOWELL NEAR 21.2N 131.3W. 
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW LOWELL NEAR 21.0N 
135.7W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW LOWELL NEAR 21.1N 
140.5W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 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.

.24 HOUR FORECAST NW OF LINE FROM 30N137W TO 28N140W WINDS 20 KT
OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.48 HOUR FORECAST NW OF LINE FROM 30N120W TO 20N140W WINDS 20 KT
OR LESS. SEAS 8 TO 11 FT IN NW SWELL.

.24 HOUR FORECAST WITHIN 07N91W TO 07N94W TO 08N94W TO 08N92W TO
08N91W TO 07N91W SW WINDS 20 TO 25 KT. SEAS 8 FT IN SW SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 0900 UTC WED SEP 23...

.TROPICAL STORM LOWELL...NUMEROUS MODERATE TO STRONG CONVECTION
WITHIN 200 NM S SEMICIRCLE. SCATTERED MODERATE ISOLATED STRONG 
WITHIN 60 NM N SEMICIRCLE.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO 12N92W TO 10N100W TO 10N112W. ITCZ 
FROM 12N128W TO 11N140W. SCATTERED MODERATE TO STRONG FROM 11N TO
14N BETWEEN 88W AND 92W. SCATTERED MODERATE ISOLATED STRONG FROM
08N TO 11N BETWEEN 91W AND 115W.

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.