000
FZPN03 KNHC 031451
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC TUE AUG 3 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE AUG 3.
24 HOUR FORECAST VALID 1200 UTC WED AUG 4.
48 HOUR FORECAST VALID 1200 UTC THU AUG 5.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM HILDA NEAR 17.5N 124.5W 992 MB AT 1500 UTC AUG 
03 MOVING NW OR 315 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 60 KT 
GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM N 
SEMICIRCLE...70 NM SE QUADRANT AND 50 NM SW QUADRANT. SEAS 12 FT 
OR GREATER WITHIN 90 NM W SEMICIRCLE...120 NM NE QUADRANT AND 150
NM SE QUADRANT WITH SEAS TO 25 FT. ELSEWHERE WITHIN 14N122W TO 
14N124W TO 16N126W TO 19N126W TO 18N121W TO 14N122W WINDS 20 TO 
33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 16N118W TO 
12N122W TO 15N127W TO 19N126W TO 21N122W TO 16N118W WINDS 20 KT 
OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM HILDA NEAR 19.1N 126.4W. 
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS WITHIN 60 NM E SEMICIRCLE...40 NM SW QUADRANT AND 50 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM NE QUADRANT...90 NM
SE QUADRANT...60 NM SW QUADRANT...AND 75 NM NW QUADRANT WITH 
SEAS TO 18 FT. ELSEWHERE WITHIN 17N124W TO 17N127W TO 20N127W TO 
20N124W TO 19N123W TO 17N124W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
REMAINDER OF AREA WITHIN 18N122W TO 15N125W TO 19N130W TO 
23N128W TO 22N125W TO 18N122W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM HILDA NEAR 20.8N 129.4W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE 
WINDS WITHIN 40 NM OF CENTER EXCEPT 0 NM SW QUADRANT. SEAS 12 FT 
OR GREATER WITHIN 30 NM OF CENTER...EXCEPT 0 NM SE QUADRANT 
WITH SEAS TO 13 FT. ELSEWHERE WITHIN 20N126W TO 19N129W TO 
20N132W TO 23N130W TO 22N127W TO 20N126W WINDS 20 TO 33 KT. SEAS 
8 TO 12 FT. REMAINDER OF AREA WITHIN 21N127W TO 20N129W TO 
21N130W TO 22N129W TO 23N127W TO 21N127W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN MIXED SWELL.
.60 HOUR FORECAST TROPICAL DEPRESSION HILDA NEAR 21.6N 131.4W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW HILDA NEAR 22.3N 
133.5W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW HILDA NEAR 23.0N 
138.0W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 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.

.TROPICAL DEPRESSION IGNACIO NEAR 20.5N 116.7W 1007 MB AT 1500
UTC AUG 03 MOVING NNW OR 335 DEG AT 5 KT. MAXIMUM SUSTAINED
WINDS 30 KT GUSTS 40 KT. WITHIN 19N114W TO 18N118W TO 21N118W TO  
21N116W TO 20N114W TO 19N114W WINDS 20 TO 30 KT. SEAS 8 TO 11 
FT.
.12 HOUR FORECAST POST-TROPICAL REMNANT LOW IGNACIO NEAR 20.9N 
116.8W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 19N116W
TO 20N117W TO 21N117W TO 22N116W TO 21N115W TO 19N116W WINDS 20 
TO 25 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW IGNACIO NEAR 20.6N 
116.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. OVER FORECAST 
WATERS WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.36 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.

.LOW PRES NEAR 14N133W 1008 MB. WITHIN 12N131W TO 13N135W TO 
16N135W TO 16N133W TO 14N131W TO 12N131W WINDS 20 TO 30 KT. SEAS
8 TO 11FT. ELSEWHERE WITHIN 10N128W TO 11N134W TO 15N137W TO 
18N132W TO 14N127W TO 10N128W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
14.5N135W 1006 MB. WITHIN 15N133W TO 15N135W TO 15N136W TO 
17N136W TO 17N133W TO 15N133W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
ELSEWHERE WITHIN 13N131W TO 14N134W TO 14N139W TO 17N135W TO 
17N132W TO 13N131W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED 
SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
16N136.5W 1004 MB. WITHIN 16N134W TO 16N136W TO 17N136W TO 
17N135W TO 17N134W TO 16N134W WINDS 20 TO 30 KT. SEAS 8 TO 12 
FT. ELSEWHERE WITHIN 15N134W TO 15N138W TO 19N139W TO 20N136W 
TO 17N133W TO 15N134W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN
MIXED SWELL.

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

CONVECTION VALID AT 1310 UTC TUE AUG 3...

.TROPICAL STORM HILDA...NUMEROUS MODERATE ISOLATED STRONG WITHIN
240 NM SW SEMICIRCLE OF HILDA.

.TROPICAL DEPRESSION IGNACIO...SCATTERED MODERATE ISOLATED 
STRONG WITHIN 150 NM SW QUADRANT.

.LOW PRES NEAR 14N133W...SCATTERED MODERATE ISOLATED STRONG 
WITHIN 60 NM SE QUADRANT.

.TROPICAL WAVE ALONG 90W N OF 05N...NUMEROUS MODERATE ISOLATED 
STRONG FROM 05N TO 16N BETWEEN 90W AND 98W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N76W TO 10N83W TO LOW PRES NEAR 08N110W TO
07N114W THEN RESUMES FROM 15N128W TO LOW PRES NEAR 14N133W TO 
11N136W. ITCZ FROM 11N136W TO 09N140W. SCATTERED MODERATE 
ISOLATED STRONG WITHIN 210 NM S-SW OF COAST OF CENTRAL AMERICA 
BETWEEN 77W TO 90W...AND FROM 06N TO 11N BETWEEN 100W AND 117W. 
SIMILAR CONVECTION FROM 19N TO 25N BETWEEN 105W AND 109W. 
SCATTERED MODERATE WITHIN 90 TO 120 NM SE OF MONSOON TROUGH 
BETWEEN 133W AND 140W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.