High Seas Forecast
Issued by NWS

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000
FZPN03 KNHC 252141
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC TUE JUL 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC TUE JUL 25.
24 HOUR FORECAST VALID 1800 UTC WED JUL 26.
48 HOUR FORECAST VALID 1800 UTC THU JUL 27.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE HILARY NEAR 15.5N 108.8W 974 MB AT 2100 UTC JUL 25
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 150 NM N AND 90 NM S SEMICIRCLES
WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA FROM 13N
TO 19N BETWEEN 105W AND 111W WINDS 20 KT OR LESS. SEAS TO 10 FT
IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE HILARY NEAR 16.4N 112.7W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 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
210 NM N AND 90 NM S SEMICIRCLES WITH SEAS TO 33 FT. ELSEWHERE
WITHIN 210 NM N AND 120 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS
9 TO 12 FT. REMAINDER OF AREA FROM 12N TO 22N BETWEEN 108W AND
118W WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE HILARY NEAR 17.5N 116.8W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS 105 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 270 NM NW AND 150 NM SE
SEMICIRCLES WITH SEAS TO 32 FT. ELSEWHERE WITHIN 300 NM NW AND
180 NM SE SEMICIRCLE WINDS 20 TO 33 KT. SEAS 9 TO 12 FT.
REMAINDER OF AREA BOUNDED BY 18N110W TO 26N118W TO 20N125W TO
11N115W TO 18N110W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED
SWELL.
.72 HOUR FORECAST HURRICANE HILARY NEAR 18.7N 120.4W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE HILARY NEAR 19.7N 124.0W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.120 HOUR FORECAST TROPICAL STORM HILARY NEAR 20.5N 127.5W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.

...HURRICANE WARNING...
.HURRICANE IRWIN NEAR 15.7N 120.1W 983 MB AT 2100 UTC JUL 25
MOVING W OR 270 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 75 KT GUSTS
90 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM N SEMICIRCLE...40
NM SE QUADRANT AND 30 NM SW QUADRANT. SEAS 12 FT OR GREATER
WITHIN 90 NM N SEMICIRCLE AND 60 NM S SEMICIRCLE WITH SEAS TO 23
FT. ELSEWHERE WITHIN 120 NM OF CENTER WINDS 20 TO 33 KT. SEAS 9
TO 12 FT. REMAINDER OF AREA WITHIN 180 NM OF CENTER WINDS 20 KT
OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE IRWIN NEAR 14.8N 122.1W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 70 NM N SEMICIRCLE AND 50 NM S SEMICIRCLE. SEAS 12 FT OR
GREATER WITHIN 120 NM OF CENTER WITH SEAS TO 24 FT. ELSEWHERE
WITHIN 150 NM OF CENTER WINDS 20 TO 33 KT. SEAS 9 TO 12 FT.
REMAINDER OF AREA FROM 11N TO 20N BETWEEN 118W AND 126W WINDS 20
KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM IRWIN NEAR 14.3N 123.6W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. LITTLE CHANGE IN
RADIUS OF TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER.
ELSEWHERE WITHIN 120 NM NW AND 240 NM SE SEMICIRCLES WINDS 20 TO
33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA BOUNDED BY 11N115W TO
06N120W TO 15N131W TO 20N125W TO 11N115W WINDS 20 KT OR LESS.
SEAS TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM IRWIN NEAR 14.7N 123.4W.
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 17.5N 123.0W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.
.120 HOUR FORECAST TROPICAL STORM IRWIN NEAR 21.5N 125.5W.
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 16.2N 137.9W 1005 MB AT 2100 UTC
JUL 25 MOVING WNW OR 295 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS
30 KT GUSTS 40 KT. SEAS 12 FT OR GREATER WITHIN 60 NM N
SEMICIRCLE...30 NM SE QUADRANT AND 0 NM SW QUADRANT WITH SEAS TO
13 FT. ELSEWHERE WITHIN 180 NM NW AND 90 NM SE SEMICIRCLES WINDS
20 TO 30 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA W OF LINE FROM
19N134W TO 15N134W TO 09N140W WINDS 20 KT OR LESS. SEAS TO 9 FT
IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL DEPRESSION GREG W OF AREA NEAR 17.6N
140.4W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 12 FT OR
GREATER WITHIN 150 NM NW SEMICIRCLE WITH SEAS TO 13 FT. OVER
FORECAST WATERS FROM 18N TO 20N W OF 139W WINDS 20 TO 30 KT.
SEAS10 TO 12 FT. ELSEWHERE FROM 17N TO 21N W OF 138W 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
17.7N 143.5W. 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 16.9N
146.6W. 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
149.5W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.
.120 HOUR FORECAST...DISSIPATED.

.36 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 01N BETWEEN 85W AND 116W...INCLUDING
WATERS BETWEEN ECUADOR AND THE GALAPAGOS ISLANDS...WINDS 20 KT
OR LESS. SEAS 8 FT IN S TO SW SWELL.

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

CONVECTION VALID AT 2100 UTC TUE JUL 25...

.HURRICANE HILARY...SCATTERED TO NUMEROUS STRONG NW
QUADRANT WITHIN 120 NM. SCATTERED MODERATE ISOLATED STRONG
ELSEWHERE WITHIN 180 NM NW AND 90 NM SE SEMICIRCLES.

.HURRICANE IRWIN...SCATTERED MODERATE TO STRONG WITHIN 75 NM
W AND 30 NM E SEMICIRCLES.

.TROPICAL DEPRESSION GREG...ISOLATED MODERATE WITHIN 90 NM
SW SEMICIRCLE.

.TROPICAL WAVE ALONG 98W/99W...SCATTERED MODERATE FROM 08N TO
14N BETWEEN 92W AND 96W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N78W TO 10N85W TO 11N99W TO 10N104W.
SCATTERED MODERATE FROM 05N TO 09N E OF 82W.

$$
.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.


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