000
FZPN03 KNHC 201548
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC FRI AUG 20 2021

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FRI AUG 20.
24 HOUR FORECAST VALID 1200 UTC SAT AUG 21.
48 HOUR FORECAST VALID 1200 UTC SUN AUG 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 28N123W TO 20N140W TO 30N140W TO 28N132W TO 30N123W TO
28N123W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN PRIMARILY NE 
SWELL...EXCEPT 10 FT NEAR 24.5N140W.
.24 HOUR FORECAST WITHIN 27N129W TO 27N135W TO 30N140W TO 
30N125W TO 27N129W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO 
NE SWELL.
.48 HOUR FORECAST WITHIN 27N128W TO 26N131W TO 27N135W TO 
29N135W TO 30N127W TO 27N128W WINDS 20 KT OR LESS. SEAS 8 FT IN N
TO NE SWELL.

.WITHIN 10N109W TO 09N114W TO 11N115W TO 12N112W TO 11N110W TO
10N109W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SW SWELL.
.24 HOUR FORECAST WITHIN 10N112W TO 10N120W TO 12N114W TO 
14N107W TO 13N107W TO 10N112W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT
IN MIXED SW SWELL.
.48 HOUR FORECAST WITHIN 10N108W TO 11N118W TO 13N117W TO 
12N111W TO 13N107W TO 10N108W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT
IN MIXED SW TO W SWELL.

.WITHIN 02N82W TO 02N83W TO 04N91W TO 05N90W TO 05N81W TO 02N82W
WINDS 20 KT OR LESS. SEAS TO 8 FT IN SW SWELL. 
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.48 HOUR FORECAST LOW PRES NEAR 19N105W 1002 MB. WITHIN 
18.5N105W TO 18.5N106W TO 18N106W TO 19N106.5W TO 19N106W TO 
18.5N105W W TO NW WINDS 20 TO 25 KT. SEAS TO 8 FT.

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

CONVECTION VALID AT 1530 UTC FRI AUG 20...

TROPICAL WAVE NEAR 113W...SCATTERED MODERATE ISOLATED STRONG FROM
10N TO 15N BETWEEN 106W AND 120W.

TROPICAL WAVE NEAR 126W...SCATTERED MODERATE ISOLATED STRONG FROM
10N TO 15N BETWEEN 121W AND 126W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 09N73W TO 08.5N87W TO LOW PRES
NEAR 16.5N104.5W 1007 MB TO 11.5N120W TO 13.5N140W. ASIDE FROM 
THE CONVECTION DESCRIBED IN THE TROPICAL WAVES SECTION, SCATTERED
MODERATE ISOLATED STRONG CONVECTION IS N OF 04.5N E OF 101W, AND
WITHIN 120 NM OF TROUGH W OF 128W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.