HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC WED JUL 26 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 0000 UTC WED JUL 26.
24 HOUR FORECAST VALID 0000 UTC THU JUL 27.
48 HOUR FORECAST VALID 0000 UTC FRI JUL 28.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE HILARY NEAR 16.0N 109.8W 973 MB AT 0300 UTC JUL 26 
MOVING WNW OR 285 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 90 KT 
GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM S 
SEMICIRCLE...80 NM NE QUADRANT AND 70 NM NW QUADRANT. SEAS 12 FT 
OR GREATER WITHIN 90 NM N SEMICIRCLE AND 60 NM S SEMICIRCLE WITH 
SEAS TO 27 FT. ELSEWHERE WITHIN 180 NM N AND 90 NM S SEMICIRCLES 
WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA FROM 13N 
TO 20N BETWEEN 106W AND 113W WINDS 20 KT OR LESS. SEAS TO 10 FT 
IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE HILARY NEAR 16.9N 113.6W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS 
WITHIN 90 NM NE QUADRANT...70 NM SE QUADRANT...50 NM SW 
QUADRANT...AND 80 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
180 NM N AND 120 NM S SEMICIRCLES WITH SEAS TO 35 FT. ELSEWHERE 
WITHIN 210 NM N AND 150 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 
9 TO 12 FT. REMAINDER OF AREA FROM 11N TO 23N BETWEEN 109W AND 
119W WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE HILARY NEAR 18.0N 117.5W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM N SEMICIRCLE...90 NM SE QUADRANT AND 70 NM SW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM NW AND 150 NM SE 
SEMICIRCLES WITH SEAS TO 36 FT. ELSEWHERE WITHIN 210 NM E AND 
150 NM W SEMICIRCLES WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. 
REMAINDER OF AREA BOUNDED BY 11N115W TO 22N127W TO 27N120W TO 
20N112W TO 11N115W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED 
SWELL.
.72 HOUR FORECAST HURRICANE HILARY NEAR 19.2N 121.1W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM HILARY NEAR 20.0N 124.8W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
.120 HOUR FORECAST TROPICAL STORM HILARY NEAR 21.0N 128.3W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.

...HURRICANE WARNING...

.HURRICANE IRWIN NEAR 15.9N 120.9W 980 MB AT 0300 UTC JUL 26 
MOVING WSW OR 250 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 80 KT 
GUSTS 100 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM N 
SEMICIRCLE...40 NM SE QUADRANT AND 30 NM SW QUADRANT. SEAS 12 FT 
OR GREATER WITHIN 60 NM N SEMICIRCLE AND 45 NM S SEMICIRCLE WITH 
SEAS TO 27 FT. ELSEWHERE WITHIN 120 NM NW AND 60 NM SE 
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF 
AREA WITHIN 210 NM OF CENTER WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE IRWIN NEAR 15.2N 123.0W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. LITTLE CHANGE IN RADIUS OF 
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. ELSEWHERE 
WITHIN 150 NM OF CENTER WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. 
REMAINDER OF AREA FROM 10N TO 19N BETWEEN 119W AND 128W WINDS 20 
KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM IRWIN NEAR 14.7N 124.0W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE 
WINDS WITHIN 60 NM N SEMICIRCLE AND 40 NM S SEMICIRCLE. SEAS 12 
FT OR GREATER WITHIN 270 NM SE AND 120 NM NW SEMICIRCLES WITH 
SEAS TO 22 FT. ELSEWHERE WITHIN 150 NM NW AND 300 NM SE 
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF 
AREA BOUNDED BY 11N115W TO 05N122W TO 14N131W TO 22N127W TO 
11N115W WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM IRWIN NEAR 15.5N 123.5W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM IRWIN NEAR 18.2N 123.5W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.
.120 HOUR FORECAST TROPICAL STORM IRWIN NEAR 22.0N 126.0W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 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.

.TROPICAL DEPRESSION GREG NEAR 17.2N 138.8W 1006 MB AT 0300 UTC 
JUL 26 MOVING NW OR 310 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 30 
KT GUSTS 40 KT. SEAS 12 FT OR GREATER WITHIN 30 NM N SEMICIRCLE 
AND 0 NM S SEMICIRCLE WITH SEAS TO 12 FT. ELSEWHERE WITHIN 180 
NM NE AND 90 NM SW SEMICIRCLES WINDS 20 TO 30 KT. SEAS 8 TO 12 
FT. REMAINDER OF AREA W OF LINE FROM 20N135W TO 15N135W WINDS 20 
KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW GREG W OF AREA NEAR 
18.2N 141.2W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. OVER 
FORECAST WATERS FROM 17N TO 19N W OF 139W WINDS 20 TO 25 KT. 
SEAS TO 9 FT. ELSEWHERE FROM 17N TO 21N W OF 139W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW GREG W OF AREA NEAR 
18.0N 144.7W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. OVER 
FORECAST WATERS WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW GREG NEAR 17.0N 
147.6W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW GREG NEAR 16.0N 
150.5W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.
.120 HOUR FORECAST...DISSIPATED.

.30 HOUR FORECAST S OF 02S BETWEEN 91W AND 116W WINDS 20 KT OR 
LESS. SEAS 8 FT IN S TO SW SWELL.
.48 HOUR FORECAST S OF LINE FROM 03.4S116W TO 08N103W TO 01S81W
...INCLUDING WATERS BETWEEN ECUADOR AND THE GALAPAGOS 
ISLANDS...WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN S TO SW SWELL.

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

CONVECTION VALID AT 0215 UTC WED JUL 26...

.HURRICANE HILARY...NUMEROUS MODERATE TO STRONG NE 
SEMICIRCLE WITHIN 90 NM. NUMEROUS MODERATE ISOLATED STRONG 
ELSEWHERE SW SEMICIRCLE WITHIN 75 NM. MODERATE FROM 16N TO 19N 
BETWEEN 109W AND 111.5W.

.HURRICANE IRWIN...NUMEROUS MODERATE SCATTERED STRONG WITHIN 60 
NM W AND 30 NM E SEMICIRCLE.

.TROPICAL DEPRESSION GREG...SCATTERED MODERATE ISOLATED 
STRONG WITHIN 60 NM W SEMICIRCLE.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N78W TO 09N84W TO 09N90W TO 08N96W TO 
13N105W. SCATTERED MODERATE ISOLATED STRONG N OF 07N E OF 83W.

$$
.