000
FZPN03 KNHC 290925
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC SAT AUG 29 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SAT AUG 29.
24 HOUR FORECAST VALID 0600 UTC SUN AUG 30.
48 HOUR FORECAST VALID 0600 UTC MON AUG 31.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM ISELLE NEAR 19.7N 115.1W 1001 MB AT 0900 UTC AUG
29 MOVING N OR 010 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 30 NM N
SEMICIRCLE AND 40 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 
90 NM E SEMICIRCLE AND 30 NM W SEMICIRCLE WITH SEAS TO 18 FT. 
ELSEWHERE WITHIN 17N113W TO 18N115W TO 20N116W TO 21N114W TO 
19N111W TO 17N113W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER
OF AREA WITHIN 17N108W TO 15N110W TO 12N118W TO 21N115W TO 
22N107W TO 17N108W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED 
SWELL. 
.24 HOUR FORECAST TROPICAL DEPRESSION ISELLE NEAR 22.2N 114.9W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 12 FT. ELSEWHERE 
WITHIN 22N114W TO 22N115W TO 23N115W TO 24N114W TO 23N114W TO 
22N114W WINDS 20 TO 30 KT. SEAS 9 TO 11 FT. REMAINDER OF AREA 
WITHIN 21N112W TO 22N116W TO 24N115W TO 24N113W TO 23N111W TO 
21N112W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SWELL.
.36 HOUR FORECAST POST-TROPICAL REMNANT LOW ISELLE NEAR 23.5N 
115.1W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW ISELLE NEAR 24.5N 
115.5W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. SEAS LESS THAN
8 FT.
.60 HOUR FORECAST POST-TROPICAL REMNANT LOW ISELLE NEAR 25.3N 
116.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.
.72 HOUR FORECAST...DISSIPATED.

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 27N110W TO 27N111W TO 30N115W TO 31N113W TO 29N112W TO
27N110W...INCLUDING GULF OF CALIFORNIA...SE WINDS 20 TO 25 KT. 
SEAS LESS THAN 8 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.48 HOUR FORECAST WITHIN 30N127W TO 29N130W TO 29N132W TO
30N134W TO 30N126W TO 30N127W WINDS 20 KT OR LESS. SEAS TO 9 FT
IN MIXED SWELL.

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

CONVECTION VALID AT 0900 UTC SAT AUG 29...

.TROPICAL STORM ISELLE...SCATTERED MODERATE FROM 15N TO 21N 
BETWEEN 109W AND 120W.

.TROPICAL WAVE ALONG 98W...SCATTERED MODERATE FROM 10N TO 20N 
BETWEEN 95W AND 100W.

.TROPICAL WAVE ALONG 83W...SCATTERED MODERATE FROM 07N TO 14N 
BETWEEN 81W AND 90W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EMERGES OFF OF CENTRAL AMERICA TO NEAR 
17N101W...THEN RESUMES WEST OF T.S. ISELLE NEAR 15N118W TO BEYOND
11N140W. SCATTERED MODERATE NOTED WITHIN 150 NM S OF THE 
BOUNDARY. 

$$

.FORECASTER ERA. NATIONAL HURRICANE CENTER.