000
FZPN03 KNHC 292111
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC SAT AUG 29.
24 HOUR FORECAST VALID 1800 UTC SUN AUG 30.
48 HOUR FORECAST VALID 1800 UTC MON AUG 31.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM ISELLE NEAR 21.0N 114.5W 1002 MB AT 2100 UTC AUG
29 MOVING NNE OR 015 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM OF CENTER
EXCEPT 40 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 30 NM OF 
CENTER WITH SEAS TO 13 FT. WITHIN 20N113W TO 19N114W TO 20N115W 
TO 21N115W TO 22N114W TO 20N113W S TO SW WINDS 25 TO 33 KT. SEAS 
9 TO 12 FT. WITHIN 17N110W TO 14N114W TO 23N115W TO 23N112W TO 
20N108W TO 17N110W S TO SW WINDS 20 KT OR LESS. SEAS 8 TO 10 FT.
.24 HOUR FORECAST TROPICAL DEPRESSION ISELLE NEAR 23.4N 114.8W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS TO 8 FT.
.36 HOUR FORECAST POST-TROPICAL REMNANT LOW ISELLE NEAR 24.2N 
115.3W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. 
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW ISELLE NEAR 24.8N 
115.6W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. SEAS LESS THAN
8 FT.
.60 HOUR FORECAST POST-TROPICAL REMNANT LOW ISELLE NEAR 25.4N 
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 30N113W TO 30N114W TO 32N114W TO 31N113W TO 30N113W...INCLUDING
GULF OF CALIFORNIA...SE TO S WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT. 
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.48 HOUR FORECAST WITHIN 29N127.5W TO 29.5N131.5W TO 30N134W TO
30N125.5W TO 29N127.5W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N
SWELL.

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

CONVECTION VALID AT 2100 UTC SAT AUG 29...

.TROPICAL STORM ISELLE...NUMEROUS MODERATE ISOLATED STRONG FROM 
19N TO 21N BETWEEN 114W AND 118W. SCATTERED MODERATE ELSEWHERE
FROM 15N TO 22N BETWEEN 114W AND 119W.

.TROPICAL WAVE ALONG 99W...SCATTERED MODERATE FROM 11N TO 18N 
BETWEEN 97W AND 105W.

.TROPICAL WAVE ALONG 85W...SCATTERED MODERATE N OF 04N E OF 92W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 10N86W TO 17N102W THEN RESUMES
NEAR 15N120W TO 12N130W TO 11N140W. SCATTERED MODERATE CONVECTION
WITHIN 210 NM S AND 90 NM N OF THE MONSOON TROUGH.

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.