346 
FZPN03 KNHC 062103
HSFEP2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL 
2230 UTC MON AUG 06 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MON AUG 06.
24 HOUR FORECAST VALID 1800 UTC TUE AUG 07.
48 HOUR FORECAST VALID 1800 UTC WED AUG 08.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE JOHN NEAR 16.0N 108.0W 990 MB AT 2100 UTC AUG 06 
MOVING NW OR 315 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 AND 150 NM SE QUADRANTS WITH SEAS TO 24 
FT. ELSEWHERE WITHIN 180 NM OF CENTER WINDS 20 TO 33 KT. SEAS 9 
TO 11 FT. REMAINDER WATERS WITHIN 290 NM E AND 240 NM W 
SEMICIRCLES OF CENTER WINDS 20 KT OR LESS. SEAS TO 10 FT 
PRIMARILY IN MIXED SWELL. 
.24 HOUR FORECAST HURRICANE JOHN NEAR 18.1N 109.9W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM NW AND SE QUADRANTS...110 NM NE AND 80 NM SW 
QUADRANTS. WINDS 20 TO 33 KT AND SEAS 12 FT OR GREATER WITHIN 
180 NM OF CENTER WITH SEAS TO 35 FT. ELSEWHERE WITHIN 360 NM OF 
CENTER WINDS 20 KT OR LESS. SEAS TO 10 FT PRIMARILY IN MIXED 
SWELL. 
.36 HOUR FORECAST HURRICANE JOHN NEAR 19.6N 111.3W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM NE...100 MN SE AND SW AND 90 NM SW QUADRANTS. 
WINDS 20 TO 33 KT AND SEAS 12 FT OR GREATER WITHIN 240 NM OF 
CENTER INCLUDING THE REMNANTS OF ILEANA...WITH SEAS TO 38 FT. 
ELSEWHERE WITHIN 480 NM OF CENTER WINDS 20 KT OR LESS. SEAS TO 
11 FT PRIMARILY IN MIXED SWELL. 
.48 HOUR FORECAST HURRICANE JOHN NEAR 21.0N 112.8W. MAXIMUM 
SUSTAINED WINDS 105 KT GUSTS 130 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM NW AND SE QUADRANTS...140 NM NE AND 100 NM SW 
QUADRANTS. WINDS 20 TO 33 KT AND SEAS 12 FT OR GREATER WITHIN 
270 NM OF CENTER WITH SEAS TO 35 FT. ELSEWHERE WITHIN 420 NM AND 
600 NM NW SEMICIRCLES OF CENTER WINDS 20 KT OR LESS. SEAS TO 10 
FT PRIMARILY IN MIXED SWELL.  
.72 HOUR FORECAST HURRICANE JOHN NEAR 24.3N 117.0W. 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 24.3N 117.0W. MAXIMUM 
SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST TROPICAL DEPRESSION JOHN NEAR 24.3N 117.0W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.

...TROPICAL STORM WARNING...
.TROPICAL STORM ILEANA NEAR 17.0N 103.3W 998 MB AT 2100 UTC AUG 
06 MOVING NW OR 305 DEG AT 15 KT. MAXIMUM SUSTAINED WINDS 55 KT 
GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM NW AND SE 
QUADRANTS...70 NM NE AND 0 NM SW QUADRANTS. SEAS 12 FT OR 
GREATER WITHIN 75 NM E SEMICIRCLE...30 NM SW AND 60 NM NW 
QUADRANTS WITH SEAS TO 21 FT. ELSEWHERE WITHIN 75 NM OF CENTER 
WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER WATERS WITHIN 180 
NM SE AND 90 NM NW SEMICIRCLES OF CENTER WINDS 20 KT OR LESS. 
SEAS TO 10 FT PRIMARILY IN MIXED SWELL. 
.24 HOUR FORECAST TROPICAL STORM ILEANA NEAR 19.5N 109.0W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS WITHIN 40 NM NW AND SE QUADRANTS...60 NM NE AND 0 NM SW 
QUADRANTS. WINDS 20 TO 33 KT AND SEAS 12 FT OR GREATER WITHIN 90 
NM OF CENTER WITH SEAS TO 20 FT. SEE CONDITIONS ASSOCIATED WITH 
HURRICANE JOHN.
.36 HOUR FORECAST...DISSIPATED...CONDITIONS MERGE WITH HURRICANE 
JOHN.

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. WITHIN AREA BOUNDED BY KINE FROM 
22N140W TO 18N135W TO 09N137W TO 06N140W TO 22N140W E TO SE 
WINDS 20 TO 25 KT. SEAS 8 TO 14 FT...HIGHEST AT 16N140W. 
.24 HOUR FORECAST CONDITIONS W OF AREA.

.LOW PRES 15N122W 1006 MB. WITHIN 180 NM SE SEMICIRCLE S TO SW 
WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. ELSEWHERE WITHIN 300 NM SE 
AND 120 NM NW SEMICIRCLES WINDS 20 KT OR LESS. SEAS TO 9 FT IN 
MIXED SWELL. 
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
15N126W 1005 MB. WITHIN 150 NM OF CENTER WINDS 20 TO 30 KT. SEAS 
9 TO 12 FT. ELSEWHERE WITHIN 360 NM NE AND 240 NM SW SEMICIRCLES 
OF CENTER WINDS 20 KT OR LESS. SEAS TO 10 FT PRIMARILY IN MIXED 
SWELL. 
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
15N128W 1005 MB. WITHIN 180 NM OF CENTER WINDS 20 TO 30 KT. SEAS 
9 TO 13 FT. ELSEWHERE WITHIN 360 NM OF CENTER WINDS 20 KT OR 
LESS. SEAS TO 10 FT PRIMARILY IN MIXED SWELL. 

.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.
.12 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.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.36 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.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.S OF LINE FROM 03.4S105W TO 06N120W WINDS 20 KT OR LESS. SEAS 
TO 8 FT IN MIXED SE AND SW SWELL.
.24 HOUR FORECAST S OF 03S BETWEEN 110W AND 120W WINDS 20 KT OR 
LESS. SEAS TO 8 FT IN MIXED SE AND SW SWELL.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.06 HOUR FORECAST 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. 
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.36 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. 
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.12 HOUR FORECAST GULF OF CALIFORNIA FROM 29N TO 31N S WINDS
20 TO 25 KT. SEAS LESS THAN 8 FT. 
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.36 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 S OF 25N SE WINDS 20 TO 25 KT. SEAS TO 10 FT.

.24 HOUR FORECAST N OF 29N BETWEEN 120W AND 124W WINDS 20 KT OR 
LESS. SEAS 8 FT IN N SWELL. 
.36 HOUR FORECAST N OF 26N BETWEEN 120W AND 124W WINDS 20 KT OR 
LESS. SEAS 8 FT IN N SWELL
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. 

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

CONVECTION VALID AT 2100 UTC MON AUG 06...

.TROPICAL STORM ILEANA AND HURRICANE JOHN...SCATTERED MODERATE TO 
STRONG WITHIN AREA BOUNDED BY 21N106W TO 11.5N97W TO 11N110W TO
18N115W TO 21N106W. 

.LOW PRES 15N122W...SCATTERED MODERATE TO STRONG WITHIN 150 NM 
OF LINE FROM 14.5N117W TO 14N123W TO 12N130W.  

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N76W TO 09N84W TO 07N91W TO 12N100W. 
ISOLATED MODERATE AND STRONG WITHIN 60 NM OF LINE FROM 06N77W TO 
05N85W. SCATTERED MODERATE ISOLATED STRONG WITHIN 30 NM OF LINE 
FROM 13N135W TO 10N140W.   

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.