189 
FZPN03 KNHC 310344
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC FRI AUG 31 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC FRI AUG 31.
24 HOUR FORECAST VALID 0000 UTC SAT SEP 01.
48 HOUR FORECAST VALID 0000 UTC SUN SEP 02.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE NORMAN NEAR 17.3N 119.6W 937 MB AT 0300 UTC AUG 31 
MOVING WSW OR 255 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 130 KT 
GUSTS 160 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM OF CENTER 
EXCEPT 50 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM OF 
CENTER EXCEPT 120 NM SW QUADRANT WITH SEAS TO 40 FT. ELSEWHERE 
WITHIN 180 NM OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
REMAINDER OF AREA WITHIN 240 NM OF CENTER WINDS 20 KT OR LESS. 
SEAS TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE NORMAN NEAR 16.6N 122.3W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 KT. TROPICAL STORM FORCE WINDS 
WITHIN 90 NM OF CENTER EXCEPT 70 NM SW QUADRANT. SEAS 12 FT OR 
GREATER WITHIN 150 NM OF CENTER EXCEPT 120 NM SW QUADRANT WITH 
SEAS TO 40 FT. ELSEWHERE WITHIN 180 NM OF CENTER WINDS 20 TO 33 
KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 240 NM OF CENTER 
WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE NORMAN NEAR 16.3N 126.3W. MAXIMUM 
SUSTAINED WINDS 105 KT GUSTS 130 KT. LITTLE CHANGE IN RADIUS OF 
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. SEAS TO 35 
FT. ELSEWHERE WITHIN 180 NM OF CENTER WINDS 20 TO 33 KT. SEAS 9 
TO 12 FT. REMAINDER OF AREA WITHIN 300 NM OF CENTER WINDS 20 KT 
OR LESS. SEAS TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE NORMAN NEAR 17.8N 131.5W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE NORMAN NEAR 19.5N 137.0W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT.
.120 HOUR FORECAST TROPICAL STORM NORMAN NEAR 20.5N 142.0W.
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.

.HURRICANE MIRIAM W OF AREA NEAR 16.5N 141.6W 982 MB AT 0300 UTC 
AUG 31 MOVING N OR 350 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 75 
KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS AND 12 FT SEAS W OF 
AREA. FROM 14N TO 19N W OF 139W WINDS 20 TO 30 KT. SEAS 8 TO 11 
FT. 
.24 HOUR FORECAST HURRICANE MIRIAM W OF AREA NEAR 19.7N 141.5W. 
MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE 
WINDS AND 12 FT SEAS W OF AREA. FROM 17N TO 22N W OF 138W WINDS 
20 TO 30 KT. SEAS 8 TO 11 FT. 
.48 HOUR FORECAST TROPICAL STORM MIRIAM NEAR 23.2N 143.0W. 
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. OVER FORECAST WATERS 
WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.48 HOUR FORECAST LOW PRES... POSSIBLE TROPICAL CYCLONE...NEAR 
14N109W 1009 MB. WITHIN 60 NM OF CENTER WINDS 20 TO 25 KT. SEAS 
TO 8 FT.

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

CONVECTION VALID AT 0300 UTC FRI AUG 31...

.HURRICANE NORMAN...NUMEROUS MODERATE TO STRONG WITHIN 120 NM OF 
CENTER. SCATTERED MODERATE ISOLATED STRONG ELSEWHERE WITHIN 180 
NM N AND 240 NM S SEMICIRCLES.

.HURRICANE MIRIAM...SCATTERED MODERATE FROM 14N TO 20N W OF 
138W. 

.LOW PRES NEAR 12.5N106W...SCATTERED MODERATE ISOLATED STRONG 
FROM 09N TO 15N BETWEEN 102W AND 109W. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N84W TO LOW PRES NEAR 12.5N106W 1010 MB TO 
12N112W...RESUMES SW OF NORMAN NEAR 14N127W TO 13N135W. 
SCATTERED MODERATE ISOLATED STRONG FROM 05N TO 08N BETWEEN 86W 
AND 94W. 

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.