000
FZPN03 KNHC 181558
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC TUE AUG 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC TUE AUG 18.
24 HOUR FORECAST VALID 1200 UTC WED AUG 19.
48 HOUR FORECAST VALID 1200 UTC THU AUG 20.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE GENEVIEVE NEAR 18.0N 108.0W 950 MB AT 1500 UTC AUG 18
MOVING NW OR 310 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 115 KT
GUSTS 140 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM NE
QUADRANT...110 NM SE QUADRANT...80 NM SW QUADRANT...AND 90 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM NE QUADRANT...270 
NM SE QUADRANT...120 NM SW QUADRANT...AND 150 NM NW QUADRANT WITH
SEAS TO 36 FT. ELSEWHERE WITHIN 14N99W TO 08N107W TO 09N111W TO
19N111W TO 21N108W TO 14N99W...INCLUDING NEAR CABO 
CORRIENTES...WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST HURRICANE GENEVIEVE NEAR 20.2N 110.4W. MAXIMUM
SUSTAINED WINDS 130 KT GUSTS 160 KT. TROPICAL STORM FORCE WINDS 
WITHIN 130 NM NE QUADRANT...120 NM SE QUADRANT...90 NM SW 
QUADRANT...AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
210 NM N SEMICIRCLE...270 NM SE QUADRANT AND 180 NM SW QUADRANT
WITH SEAS TO 41 FT. ELSEWHERE WITHIN 14N103W TO 09N112W TO 
17N118W TO 28N117W TO 25N109W TO 14N103W...INCLUDING GULF OF 
CALIFORNIA AND NEAR CABO CORRIENTES...WINDS 20 TO 33 KT. SEAS 8 
TO 12 FT.
.48 HOUR FORECAST HURRICANE GENEVIEVE NEAR 22.2N 112.3W. MAXIMUM
SUSTAINED WINDS 105 KT GUSTS 130 KT. TROPICAL STORM FORCE WINDS 
WITHIN 110 NM E SEMICIRCLE...80 NM SW QUADRANT AND 100 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM OF CENTER EXCEPT
120 NM NE QUADRANT WITH SEAS TO 39 FT. ELSEWHERE WITHIN 15N102W
TO 09N110W TO 14N118W TO 30N127W TO 23N106W TO 15N102W... 
INCLUDING GULF OF CALIFORNIA AND NEAR CABO CORRIENTES...WINDS 20 
TO 33 KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST HURRICANE GENEVIEVE NEAR 24.1N 115.0W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM GENEVIEVE NEAR 26.3N 118.1W. 
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
.120 HOUR FORECAST POST-TROPICAL GENEVIEVE NEAR 28.7N 121.4W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.

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.

.24 HOUR FORECAST WITHIN 05N83W TO 05N88W TO 07N87W TO 08N85W TO
07N83W TO 05N83W WINDS 20 KT OR LESS. SEAS 8 FT IN SW SWELL.
.48 HOUR FORECAST WITHIN 06N81W TO 04N85W TO 06N93W TO 09N94W TO
09N84W TO 06N81W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN SW 
SWELL.

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

CONVECTION VALID AT 1500 UTC TUE AUG 18...

.HURRICANE GENEVIEVE...NUMEROUS MODERATE TO STRONG 180 NM IN THE
SOUTHERN SEMICIRCLE AND SCATTERED MODERATE TO STRONG 180 NM IN 
THE NE QUADRANT. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 09N83W TO 13N97W...THEN RESUMES WEST
OF HURRICANE GENEVIEVE FROM 14N111W TO 13N126W TO 1010 MB LOW 
PRESSURE NEAR 14N139W. SCATTERED MODERATE ISOLATED STRONG 
SOUTH OF THE MONSOON TROUGH FROM 05N-09N EAST OF 87W. SCATTERED 
MODERATE ABOUT 200 NM OF THE MONSOON TROUGH ELSEWHERE.

$$
.FORECASTER TORRES. NATIONAL HURRICANE CENTER.