High Seas Forecast
Issued by NWS

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000
FZPN03 KNHC 281514
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC FRI JUL 28 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 1200 UTC FRI JUL 28.
24 HOUR FORECAST VALID 1200 UTC SAT JUL 29.
48 HOUR FORECAST VALID 1200 UTC SUN JUL 30.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM HILARY NEAR 19.2N 118.4W 996 MB AT 1500 UTC JUL
28 MOVING NW OR 305 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 55 KT
GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM NW AND SE
QUADRANTS...90 NM NE QUADRANT AND 60 NM SW QUADRANT. SEAS 12 FT
OR GREATER WITHIN 120 NM N SEMICIRCLE AND 105 NM S SEMICIRCLE
WITH SEAS TO 22 FT. ELSEWHERE WITHIN 180 NM OF CENTER WINDS 20
TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA BOUNDED BY 21N127W
TO 26N121W TO 20N113W TO 13N117W TO 21N127W WINDS 20 KT OR LESS.
SEAS TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM HILARY NEAR 20.9N 121.3W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. LITTLE CHANGE IN
RADIUS OF TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER
WITH SEAS TO 22 FT. ELSEWHERE WITHIN 180 NM E SEMICIRCLE AND 210
NM W SEMICIRCLE WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF
AREA BOUNDED BY 20N129W TO 27N126W TO 23N116W TO 16N118W TO
20N129W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM HILARY NEAR 22.8N 125.4W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 70 NM N SEMICIRCLE AND 50 NM S SEMICIRCLE. SEAS 12
FT OR GREATER 90 NM E SEMICIRCLE AND 120 NM W SEMICIRCLE WITH
SEAS TO 20 FT. ELSEWHERE WITHIN 180 NM E SEMICIRCLE AND 240 NM W
SEMICIRCLE WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA
BOUNDED BY 20N134W TO 27N136W TO 29N129W TO 27N123W TO 20N118W
TO 20N134W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL DEPRESSION HILARY NEAR 24.0N 129.4W.
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 HILARY NEAR 24.8N
132.6W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW HILARY NEAR 26.5N
135.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.

...TROPICAL STORM WARNING...
.TROPICAL STORM IRWIN NEAR 14.8N 125.3W 998 MB AT 1500 UTC JUL
28 MOVING N OR 360 DEG AT 0 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM E
SEMICIRCLE AND 30 NM W SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN
90 NM N SEMICIRCLE AND 75 NM S SEMICIRCLE WITH SEAS TO 18 FT.
ELSEWHERE WITHIN 150 NM OF CENTER WINDS 20 TO 33 KT. SEAS 9 TO
12 FT. REMAINDER OF AREA BOUNDED BY 21N127W TO 13N117W TO
08N124W TO 16N132W TO 21N127W WINDS 20 KT OR LESS. SEAS TO 11 FT
IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM IRWIN NEAR 15.2N 125.4W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 40 NM W SEMICIRCLE...70 NM NE QUADRANT AND 60 NM SE
QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM E SEMICIRCLE AND
90 NM W SEMICIRCLE WITH SEAS TO 20 FT. ELSEWHERE 210 NM SE
SEMICIRCLE AND 180 NM NW SEMICIRCLE WINDS 20 TO 33 KT. SEAS 9 TO
12 FT. REMAINDER OF AREA BOUNDED BY 20N130W TO 16N118W TO
08N121W TO 13N133W TO 20N130W WINDS 20 KT OR LESS. SEAS TO 11 FT
IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM IRWIN NEAR 18.0N 125.5W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 50 NM W SEMICIRCLE...70 NM NE QUADRANT AND 60 NM SE
QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM OF CENTER WITH
SEAS TO 18 FT. ELSEWHERE WITHIN 180 NM SE SEMICIRCLE AND 120 NM
NW SEMICIRCLE WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF
AREA BOUNDED BY 20N134W TO 20N118W TO 12N114W TO 13N127W TO
20N134W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM IRWIN NEAR 21.5N 128.0W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 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.

.WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W TO 14.5N95W...
INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS 8
FT.
.06 HOUR FORECAST GULF OF TEHUANTEPEC WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.S OF 04N BETWEEN 81W AND 89W...S OF 07N  BETWEEN 92W AND
103W...AND ELSEWHERE S OF 01S BETWEEN 89W AND 116W WINDS 20 KT
OR LESS. SEAS TO 10 FT IN S TO SW SWELL.
.24 HOUR FORECAST S OF A LINE FROM 06N80W TO 10N95W TO 10N105W
TO 03.4S118W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN S TO SW
SWELL.
.48 HOUR FORECAST S OF A LINE FROM 07N79W TO 13N95W TO 13N112W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN S TO SW SWELL.

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

CONVECTION VALID AT 1500 UTC FRI JUL 28...

.TROPICAL STORM HILARY...SCATTERED MODERATE FROM 16N TO 21N
BETWEEN 115W AND 120W.

.TROPICAL STORM IRWIN...SCATTERED TO NUMEROUS MODERATE ISOLATED
STRONG FROM 13N TO 17N BETWEEN 121W AND 128W.

.TROPICAL WAVE FROM 09N97W TO 15N96W. SCATTERED MODERATE FROM
10N TO 16N BETWEEN 93W AND 98W.

.TROPICAL WAVE FROM 06N112W TO 16N112W. SCATTERED MODERATE FROM
07N TO 15N BETWEEN 108W AND 116W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 10N85W TO 08N101W TO 10N111W THEN
RESUMES NEAR 12N130W TO 09N137W. ITCZ EXTENDS FROM 09N137W TO
09N140W. SCATTERED TO NUMEROUS MODERATE ISOLATED STRONG FROM 04N
TO 09N E OF 85W AND FROM 06N TO 11N BETWEEN 93W AND 107W.
SCATTERED MODERATE FROM 07N TO 11N W OF 128W.

$$
.FORECASTER HUFFMAN. NATIONAL HURRICANE CENTER.


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