854 
FZPN03 KNHC 070546 AAA
HSFEP2

HIGH SEAS FORECAST...UPDATED 
NWS NATIONAL HURRICANE CENTER MIAMI FL 
0546 UTC TUE AUG 07 2018

UPDATED FOR NEWLY DEVELOPED TROPICAL DEPRESSION THIRTEEN-E

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE AUG 07.
24 HOUR FORECAST VALID 0000 UTC WED AUG 08.
48 HOUR FORECAST VALID 0000 UTC THU AUG 09.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE JOHN NEAR 16.7N 108.6W 989 MB AT 0300 UTC AUG 07 
MOVING NW OR 325 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 65 KT 
GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM OF CENTER 
EXCEPT 90 NM SE QUADRANT.  SEAS 12 FT OR GREATER WITHIN 120 NM W 
SEMICIRCLE...180 NM NE QUADRANT AND 150 NM SE QUADRANT WITH SEAS 
TO 28 FT. ELSEWHERE WITHIN 210 NM OF CENTER WINDS 20 TO 33 KT. 
SEAS 10 TO 12 FT. REMAINDER OF AREA FROM 11N TO 20N BETWEEN 101W 
AND 113W...EXCEPT AS NOTED WITH TROPICAL STORM ILEANA...WINDS 20 
KT OR LESS. SEAS TO 11 FT IN MIXED SWELL. 
.24 HOUR FORECAST HURRICANE JOHN NEAR 18.8N 110.4W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS 
WITHIN 130 NM NW AND SE QUADRANTS...100 NM NE QUADRANT AND 80 NM 
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM ALL QUADRANTS 
EXCEPT 180 NM SW QUADRANT WITH SEAS TO 37 FT. ELSEWHERE WITHIN 
270 NM W SEMICIRCLE...EXCEPT AS NOTED WITH HURRICANE 
ILEANA...WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA 
FROM 11N TO 25N BETWEEN 103W AND 118W WINDS 20 KT OR LESS. SEAS 
8 TO 11 FT IN MIXED SWELL. 
.48 HOUR FORECAST HURRICANE JOHN NEAR 22.3N 114.0W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM NE QUADRANT...120 NM SE QUADRANT...60 NM SW 
QUADRANT...AND 80 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
330 NM NE SEMICIRCLE AND 210 NM SW SEMICIRCLE WITH SEAS TO 40 
FT. ELSEWHERE WITHIN 330 NM SE SEMICIRCLE AND 210 NM NW 
SEMICIRCLE WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF 
AREA FROM 15N TO 30N E OF 125W...EXCEPT GULF OF CALIFORNIA N OF 
25.5...WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL. 
.72 HOUR FORECAST HURRICANE JOHN NEAR 25.5N 118.5W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM JOHN NEAR 27.5N 122.5W. MAXIMUM 
SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW JOHN NEAR 27.5N 
126.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.

...TROPICAL STORM WARNING...
.TROPICAL STORM ILEANA NEAR 18.0N 104.9W 999 MB AT 0300 UTC AUG 
07 MOVING NW OR 305 DEG AT 18 KT. MAXIMUM SUSTAINED WINDS 50 KT 
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM NW AND SE 
QUADRANTS...60 NM NE QUADRANT AND 0 NM SW QUADRANT. SEAS 12 FT 
OR GREATER WITHIN 60 NM OF CENTER EXCEPT 30 NM SW QUADRANT WITH 
SEAS TO 17 FT. ELSEWHERE WITHIN 90 NM OF CENTER WINDS 20 TO 33 
KT. SEAS 8 TO 12 FT IN MIXED SWELL. SEE CONDITIONS ASSOCIATED 
WITH HURRICANE JOHN.
.24 HOUR FORECAST TROPICAL STORM ILEANA NEAR 20.8N 111.2W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE 
WINDS WITHIN 30 NM NW AND SE QUADRANTS...50 NM NE QUADRANT AND 0 
NM SW QUADRANT. SEAS 12 FT OR GREATER MERGED WITH THOSE FROM 
HURRICANE JOHN.
.36 HOUR FORECAST...DISSIPATED. CONDITIONS MERGED WITH HURRICANE 
JOHN.

...TROPICAL STORM WARNING...
.TROPICAL DEPRESSION THIRTEEN-E NEAR 14.5N 124.3W 1004 MB AT 
0500 UTC AUG 07 MOVING W OR 270 DEG AT 9 KT. MAXIMUM SUSTAINED 
WINDS 30 KT GUSTS 40 KT. WITHIN 180 NM SE SEMICIRCLE AND 90 NM N 
QUADRANT WINDS 20 TO 30 KT. SEAS 9 TO 12 FT. ELSEWHERE FROM 10N 
TO 19N BETWEEN 116W AND 127W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN MIXED SWELL. 
.24 HOUR FORECAST TROPICAL STORM THIRTEEN-E NEAR 14.4N 127.2W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS WITHIN 20 NM OF CENTER EXCEPT 30 NM NE QUADRANT. SEAS 12 
FT OR GREATER WITHIN 60 NM E SEMICIRCLE AND 30 NM W SEMICIRCLE 
WITH SEAS TO 14 FT. ELSEWHERE WITHIN 90 NM OF CENTER WINDS 20 TO 
33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 210 NM E 
SEMICIRCLE AND 150 NM W SEMICIRCLE WINDS 20 KT OR LESS. SEAS 8 
TO 10 FT IN MIXED SWELL. 
.48 HOUR FORECAST TROPICAL STORM THIRTEEN-E NEAR 15.2N 129.9W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE 
WINDS WITHIN 40 NM NW AND SE QUADRANTS...50 NM NE QUADRANT AND 
30 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 NM E 
SEMICIRCLE AND 30 NM W SEMICIRCLE WITH SEAS TO 16 FT. ELSEWHERE 
WITHIN 150 NM OF CENTER WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. 
REMAINDER OF AREA FROM 12N TO 18N BETWEEN 121W AND 133W WINDS 20 
KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. 
.72 HOUR FORECAST TROPICAL STORM SPECIAL NEAR 17.0N 130.5W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM SPECIAL NEAR 19.5N 131.0W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
.120 HOUR FORECAST TROPICAL STORM SPECIAL NEAR 22.0N 132.5W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 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.

.HURRICANE HECTOR W OF AREA. FROM 07N TO 22N W OF 137W WINDS 20 
KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.  
.18 HOUR FORECAST CONDITIONS W OF AREA. WINDS 20 KT OR LESS. 
SEAS LESS THAN 8 FT. 

.WITHIN 15 NM OF LINE FROM 16N95W TO 15N95W...INCLUDING THE 
GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 
8 FT.
.06 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 14N95W... 
INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 30 KT. SEAS TO 
9 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE. 
.30 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 
14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 
TO 25 KT. SEAS TO 9 FT.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.S OF LINE FROM 03.4S105W TO 07N117W TO 07N120W WINDS 20 KT OR 
LESS. SEAS TO 8 FT IN MIXED SE AND SW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.WITHIN 15 NM OF LINE FROM 11N86W TO 10N88.5W...INCLUDING THE 
GULF OF PAPAGAYAO...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 15 NM OF LINE FROM 11.5N86W TO 
11.5N88.5W...INCLUDING THE GULF OF PAPAGAYAO...E WINDS 20 TO 25 
KT. SEAS LESS THAN 8 FT. 
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.06 HOUR FORECAST GULF OF CALIFORNIA FROM 29N TO 31N S WINDS 20 
TO 25 KT. SEAS LESS THAN 8 FT. 
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST GULF OF CALIFORNIA N OF 29N SE TO S WINDS 20 
TO 25 KT. SEAS LESS THAN 8 FT. S OF 25N WINDS 20 KT OR LESS. 
SEAS TO 9 FT IN S SWELL.
.48 HOUR FORECAST CONDITIONS MERGED WITH HURRICANE JOHN.

.24 HOUR FORECAST N OF 29N BETWEEN 120W AND 124W WINDS 20 KT OR 
LESS. SEAS 8 FT IN N SWELL. 
.30 HOUR FORECAST N OF 26N BETWEEN 120W AND 124W WINDS 20 KT OR 
LESS. SEAS 8 FT IN N SWELL
.48 HOUR FORECAST CONDITIONS MERGED WITH HURRICANE JOHN.

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

CONVECTION VALID AT 0300 UTC TUE AUG 07...

.HURRICANE JOHN...NUMEROUS MODERATE TO STRONG WITHIN 120 NM OF 
CENTER. SCATTERED MODERATE ISOLATED STRONG ELSEWHERE FROM 12N TO 
20N BETWEEN 107W AND 114W. 

.TROPICAL STORM ILEANA...NUMEROUS MODERATE TO STRONG FROM 15N TO 
19N BETWEEN 102W AND 106W. 

.TROPICAL DEPRESSION THIRTEEN-E...SCATTERED MODERATE ISOLATED 
STRONG FROM 12N TO 15N BETWEEN 123W AND 127W. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N78W TO 07N90W TO 07N91W TO 13N101W. ITCZ 
FROM 14N126W TO 12N132W TO 14N138W. SCATTERED MODERATE ISOLATED 
STRONG WITHIN 60 NM OF CENTRAL AMERICA COAST. SCATTERED MODERATE 
CONVECTION FROM 08N TO 16N BETWEEN 127W AND 140W. 

$$
.FORECASTER LATTO. NATIONAL HURRICANE CENTER.