000
FZPN03 KNHC 041758 CCA
HSFEP2

HIGH SEAS FORECAST...CORRECTED
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC WED AUG 4 2021

CORRECTED FOR GALE WARNING

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 WED AUG 4.
24 HOUR FORECAST VALID 1200 UTC THU AUG 5.
48 HOUR FORECAST VALID 1200 UTC FRI AUG 6.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM HILDA NEAR 19.1N 127.4W 1005 MB AT 1500 UTC AUG
04 MOVING WNW OR 295 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM OF CENTER
EXCEPT 40 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM E 
SEMICIRCLE AND 90 NM W SEMICIRCLE WITH SEAS TO 18 FT. ELSEWHERE 
WITHIN 19N124W TO 17N125W TO 17N128W TO 22N128W TO 22N125W TO
19N124W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA
WITHIN 18N122W TO 16N123W TO 17N128W TO 21N133W TO 23N125W TO 
18N122W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.12 HOUR FORECAST TROPICAL DEPRESSION HILDA NEAR 19.7N 128.7W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 12 FT OR GREATER
WITHIN 75 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE WITH SEAS TO 14
FT. ELSEWHERE WITHIN 20N127W TO 18N128W TO 20N131W TO 22N131W 
TO 22N127W TO 20N127W NE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. 
REMAINDER OF AREA WITHIN 18N132W TO 14N133W TO 14N140W TO 22N136W
TO 21N126W TO 18N132W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN 
MIXED SWELL.
.24 HOUR FORECAST TROPICAL DEPRESSION HILDA NEAR 20.6N 130.6W. 
MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 21N129W TO 
20N132W TO 22N133W TO 24N132W TO 23N129W TO 21N129W WINDS 20 TO 
25 KT. SEAS 8 TO 11 FT. REMAINDER OF AREA WITHIN 20N128W TO 
18N131W TO 19N133W TO 23N135W TO 23N129W TO 20N128W WINDS 20 KT 
OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. 
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW HILDA NEAR 22.2N 
135.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. WITHIN 23N133W
TO 22N137W TO 24N138W TO 26N137W TO 27N133W TO 23N133W WINDS 20 
KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL.
.60 HOUR FORECAST POST-TROPICAL REMNANT LOW HILDA NEAR 22.7N 
137.3W. 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.

...GALE WARNING...
.LOW PRES NEAR 14N135W 1007 MB. WITHIN 13N134W TO 14N137W TO 
16N136W TO 17N134W TO 15N133W TO 13N134W WINDS 20 TO 30 KT. SEAS
9 TO 12 FT. ELSEWHERE WITHIN 15N130W TO 11N133W TO 14N140W TO 
18N136W TO 18N130W TO 15N130W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN MIXED SWELL.
.12 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
14.5N135.5W 1006 MB. WITHIN 14N134W TO 14N135W TO 15N137W TO 
17N137W TO 17N135W TO 14N134W WINDS 20 TO 35 KT. SEAS 9 TO 13 FT.
ELSEWHERE WITHIN 15N132W TO 13N134W TO 14N140W TO 18N139W TO 
20N134W TO 15N132W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED
SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
15.5N136.5W 1005 MB. WITHIN 14N135W TO 15N137W TO 17N138W TO 
18N136W TO 17N135W TO 14N135W WINDS 20 TO 35 KT. SEAS 9 TO 13 FT.
ELSEWHERE WITHIN 14N134W TO 17N137W TO 17N140W TO 19N139W TO 
19N136W TO 14N134W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED
SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
17.5N138.5W 1004 MB. WITHIN 18N137W TO 17N140W TO 19N140W TO 
20N139W TO 20N137W TO 18N137W WINDS 20 TO 35 KT. SEAS 8 TO 14 FT.

.SYNOPSIS AND FORECAST.

.18 HOUR FORECAST WITHIN 30N112W TO 29N113W TO 30N114W TO
31N114W TO 31N113W TO 30N112W...INCLUDING THE GULF OF 
CALIFORNIA...SE TO S WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.36 HOUR FORECAST WITHIN 29N119W TO 29N120W TO 29N122W TO
30N122W TO 30N118W TO 29N119W WINDS 20 KT OR LESS. SEAS 8 FT IN
N SWELL SWELL.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 1430 UTC WED AUG 4...

.TROPICAL STORM HILDA... NUMEROUS MODERATE ISOLATED STRONG 
WITHIN 210 NM S QUADRANT.

.LOW PRES NEAR 14N135W...SCATTERED MODERATE ISOLATED STRONG 
WITHIN 210 NM SE SEMICIRCLE AND WITHIN 150 NM N QUADRANT.

.TROPICAL WAVE ALONG 95W N OF 06N...CLUSTERS OF SCATTERED 
MODERATE ISOLATED STRONG WITHIN 330 NM SSW OF COAST OF MEXICO 
BETWEEN 92W AND 103W.

.TROPICAL WAVE ALONG 111W N OF 06N...CLUSTERS OF SCATTERED 
MODERATE ISOLATED STRONG FROM 10N TO 13N BETWEEN 106W AND 112W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N83W TO 10N102W TO 07N121W. SCATTERED 
MODERATE ISOLATED STRONG FROM 06N TO 10N BETWEEN 83W AND 87W... 
WITHIN 180 NM SSW OF MONSOON TROUGH BETWEEN 94W AND 104W...FROM 
07N TO 10N BETWEEN 110W AND 121W...AND FROM 10N TO 12N W OF 
137W. SIMILAR CONVECTION FROM 21N TO 25N BETWEEN 106W AND 109W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.