000
FZPN03 KNHC 190343
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC SAT AUG 19 2023

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SAT AUG 19.
24 HOUR FORECAST VALID 0000 UTC SUN AUG 20.
48 HOUR FORECAST VALID 0000 UTC MON AUG 21.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE HILARY NEAR 19.7N 112.7W 948 MB AT 0300 UTC AUG 19
MOVING NNW OR 335 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 115 KT
GUSTS 140 KT. TROPICAL STORM FORCE WINDS WITHIN 220 NM NE
QUADRANT...200 NM SE QUADRANT...110 NM SW QUADRANT...AND 170 NM
NW QUADRANT.  SEAS 12 FT OR GREATER WITHIN 330 NM NE
QUADRANT...390 NM SE QUADRANT...300 NM SW QUADRANT...AND 270 NM
NW QUADRANT WITH SEAS TO 44 FT. ELSEWHERE WITHIN 21N107W TO 
24N113W TO 20N117W TO 13N116W TO 11N110W TO 13N107W TO 21N107W
WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 
18N103W TO 26N109W TO 27N116W TO 17N122W TO 08N118W TO 09N107W TO
18N103W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE HILARY NEAR 24.2N 114.4W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS 
WITHIN 230 NM NE QUADRANT...190 NM SE QUADRANT...130 NM SW 
QUADRANT...AND 170 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
240 NM NE AND 360 NM SW SEMICIRCLES WITH SEAS TO 34 FT. 
ELSEWHERE WITHIN 25N108W TO 28N111W TO 27N118W TO 21N118W TO 
19N114W TO 22N109W TO 25N108W WINDS 20 TO 33 KT. SEAS 10 TO 12 
FT. REMAINDER OF AREA WITHIN 30N113W TO 29N122W TO 18N127W TO 
09N119W TO 10N106W TO 17N101W TO 30N113W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN MIXED SWELL. 
.48 HOUR FORECAST TROPICAL STORM HILARY INLAND NEAR 32.1N 
116.8W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM
FORCE WINDS WITHIN 90 NM W SEMICIRCLE...180 NM NE QUADRANT AND 
150 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 30N115W TO 
30N120W TO 22N111W TO 30N115W WITH SEAS TO 18 FT. ELSEWHERE 
WITHIN 31N113W TO 32N115W TO 30N116W TO 30N120W TO 28N117W TO 
29N112W TO 31N113W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER
OR AREA WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. 
.60 HOUR FORECAST POST-TROPICAL HILARY NEAR 37.8N 117.8W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 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.

.LOW PRES...REMNANTS OF FERNANDA...NEAR 16N139W 1008 MB. WITHIN 
19N137W TO 20N138W TO 20N140W TO 15N140W TO 15N138W TO 17N136W TO
19N137W E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT IN NE TO E SWELL.
.18 HOUR FORECAST LOW W OF AREA. WITHIN 19N137W TO 20N138W TO 
20N140W TO 15N140W TO 15N138W TO 17N136W TO 19N137W WINDS 20 KT 
OR LESS. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 0300 UTC SAT AUG 19...

HURRICANE HILARY...NUMEROUS MODERATE TO SCATTERED STRONG WITHIN
120 NM SE AND 90 NM NW SEMICIRCLES.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 10N85W TO 08N95W TO 12N105W...AND
FROM 12N120W TO 07N140W. SCATTERED MODERATE FROM 04N TO 06N 
BETWEEN 91W AND 93W. 

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.