238 
FZPN03 KNHC 182107
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC SAT AUG 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SAT AUG 18.
24 HOUR FORECAST VALID 1800 UTC SUN AUG 19.
48 HOUR FORECAST VALID 1800 UTC MON AUG 20.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE LANE NEAR 12.5N 139.7W 948 MB AT 2100 UTC AUG 18 
MOVING WNW OR 285 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 120 KT 
GUSTS 145 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM NE 
QUADRANT...70 NM SE QUADRANT...40 NM SW QUADRANT...AND 60 NM NW 
QUADRANT.  SEAS 12 FT OR GREATER WITHIN 240 NM NE QUADRANT...180 
NM SE QUADRANT...120 NM SW QUADRANT...AND 150 NM NW QUADRANT 
WITH SEAS TO 43 FT. ELSEWHERE WITHIN 180 NM N AND 120 NM S 
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER AREA 
BOUNDED BY 20N140W TO 19N131W TO 13N131W TO 08N140W TO 20N140W 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE LANE WEST OF AREA NEAR 13.4N 143.6W. 
MAXIMUM SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM 
FORCE WINDS WITHIN 110 NM NE QUADRANT...100 NM SE QUADRANT...60 
NM SW QUADRANT...AND 90 NM NW QUADRANT. OVER FORECAST WATERS 
WITHIN AREA BOUNDED BY 21N140W TO 20N134W TO 16N134W TO 11N140W 
TO 21N140W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE LANE WEST OF AREA NEAR 13.9N 147.5W. 
MAXIMUM SUSTAINED WINDS 100 KT GUSTS 120 KT. LITTLE CHANGE IN 
RADIUS OF TROPICAL STORM FORCE WINDS. OVER FORECAST WATERS WINDS 
20 KT OR LESS. SEAS LESS THAN 8 FT. 
.72 HOUR FORECAST HURRICANE LANE NEAR 14.1N 151.1W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE LANE NEAR 14.8N 154.7W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.120 HOUR FORECAST TROPICAL STORM LANE NEAR 15.9N 158.2W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 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.

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

CONVECTION VALID AT 2100 UTC SAT AUG 18...

.HURRICANE LANE...NUMEROUS MODERATE SCATTERED STRONG WITHIN 60 
NM OF CENTER. SCATTERED MODERATE ISOLATED STRONG ELSEWHERE FROM 
09N TO 14N BETWEEN 136W AND 140W.

.TROPICAL WAVE AXIS NEAR 107W FROM 05N TO 17N...SCATTERED 
MODERATE ISOLATED STRONG FROM 11N TO 18N BETWEEN 100W AND 107W.

.TROPICAL WAVE AXIS NEAR 120W FROM 05N TO 17N...SCATTERED 
MODERATE ISOLATED STRONG FROM 12N TO 16N BETWEEN 114W AND 120W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N78W TO 09N87W TO 07N97W TO 12N111W TO 
09N121W. ITCZ FROM 09N121W TO 09N124W TO 11N131W. SCATTERED 
MODERATE ISOLATED STRONG FROM 03N TO 08N E OF 83W. SCATTERED 
MODERATE ISOLATED STRONG FROM 05N TO 12N BETWEEN 90W AND 95W. 

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.