000
FZPN03 KNHC 220940
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC SAT JUL 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SAT JUL 22.
24 HOUR FORECAST VALID 0600 UTC SUN JUL 23.
48 HOUR FORECAST VALID 0600 UTC MON JUL 24.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL DEPRESSION NINE-E NEAR 9.6N 96.6W 1006 MB AT 0900 UTC 
JUL 22 MOVING WNW OR 285 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 
30 KT GUSTS 40 KT. WITHIN 150 NM NE QUADRANT WINDS 20 TO 30 KT. 
SEAS 8 TO 10 FT.
.24 HOUR FORECAST TROPICAL STORM NINE-E NEAR 11.1N 100.1W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS WITHIN 50 NM N AND 30 NM S SEMICIRCLES. SEAS 12 FT OR 
GREATER WITHIN 75 NM N AND 30 NM S SEMICIRCLES WITH SEAS TO 14 
FT. ELSEWHERE WITHIN 180 NM OF CENTER EXCEPT 90 NM SW QUADRANT 
WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST HURRICANE NINE-E NEAR 13.2N 103.4W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM NE...70 NM SE...60 NM SW AND 80 NM NW QUADRANTS. 
SEAS 12 FT OR GREATER WITHIN 90 NM OF CENTER...EXCEPT 120 NM NE 
QUADRANT WITH SEAS TO 24 FT. ELSEWHERE WITHIN 120 NM OF CENTER 
EXCEPT 150 NM NE QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.
.72 HOUR FORECAST HURRICANE NINE-E NEAR 15.1N 106.5W. MAXIMUM 
SUSTAINED WINDS 85 KT GUSTS 105 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE NINE-E NEAR 16.8N 109.9W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT.
.120 HOUR FORECAST HURRICANE NINE-E NEAR 18.0N 113.5W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 KT.

...TROPICAL STORM WARNING...
.TROPICAL STORM GREG NEAR 15.2N 123.1W 1001 MB AT 0900 UTC JUL 
22 MOVING W OR 275 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 45 KT 
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM N AND 30 NM 
S SEMICIRCLES. SEAS 12 FT OR GREATER WITHIN 90 NM N AND 45 NM S 
SEMICIRCLES WITH SEAS TO 17 FT. ELSEWHERE WITHIN 150 NM OF 
CENTER EXCEPT 105 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 12 
FT. REMAINDER OF AREA WITHIN 210 NM OF CENTER EXCEPT 150 NM SW 
QUADRANT WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM GREG NEAR 15.4N 127.2W. MAXIMUM 
SUSTAINED WINDS 45 KT GUSTS 55 KT. LITTLE CHANGE IN RADIUS OF 
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. 
.48 HOUR FORECAST TROPICAL STORM GREG NEAR 15.2N 131.6W. MAXIMUM 
SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS 
WITHIN 60 NM N AND 40 NM S SEMICIRCLES. SEAS 12 FT OR GREATER 
WITHIN 120 NM N AND 75 NM S SEMICIRCLES WITH SEAS TO 18 FT. 
ELSEWHERE WITHIN 270 NM NW AND 120 NM SE SEMICIRCLES WINDS 20 TO 
33 KT. SEAS 8 TO 12 FT. REMAINDER AREA FROM 08N TO 24N BETWEEN 
128W AND 138W WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM GREG NEAR 15.7N 134.6W. MAXIMUM 
SUSTAINED WINDS 45 KT GUSTS 55 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM GREG NEAR 17.2N 137.0W. MAXIMUM 
SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW GREG NEAR 18.0N 
139.0W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 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.

.LOW PRES NEAR 14N112W 1007 MB. WITHIN 90 NM OF CENTER WINDS 20 
TO 25 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
14N115W 1007 MB. WITHIN 90 NM OF LOW CENTER WINDS 20 TO 30 KT. 
SEAS TO 10 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
15N117W 1005 MB. WITHIN 90 NM OF LOW CENTER WINDS 20 TO 30 KT. 
SEAS 8 TO 12 FT.

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

CONVECTION VALID AT 0900 UTC SAT JUL 22...

.TROPICAL STORM GREG...SCATTERED MODERATE TO STRONG WITHIN 120 
NM N OF CENTER.  

.TROPICAL DEPRESSION NINE-E...SCATTERED MODERATE TO STRONG 
WITHIN 150 NM NW SEMICIRCLE. 

.LOW PRES NEAR 14N112W...SCATTERED MODERATE TO STRONG WITHIN 120 
NM SW QUADRANT.  

.LOW PRES NEAR 11N127W...SCATTERED MODERATE ISOLATED STRONG 
WITHIN 60 NM SW QUADRANT.  

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 10N85W TO 08N93W. THE MONSOON 
TROUGH BREAKS DOWN IN THE VICINITY OF T.D. NINE-E AND A SURFACE 
LOW NEAR 14N111W, THEN RESUMES FROM 14N122W TO THE REMNANT LOW 
OF T.D. EIGHT-E NEAR 11N128W. THE ITCZ EXTENDS FROM 11N129W TO 
10N140W. EXCEPT NOTED WITH THE TROPICAL SYSTEMS DECRIBED 
ABOVE...MINIMAL CONVECTION IS ASSOCIATED WITH THE TROUGH AXIS.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.