748 
FZPN03 KNHC 310939
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC FRI AUG 31.
24 HOUR FORECAST VALID 0600 UTC SAT SEP 01.
48 HOUR FORECAST VALID 0600 UTC SUN SEP 02.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE NORMAN NEAR 16.9N 120.2W 946 MB AT 0900 UTC AUG 31 
MOVING WSW OR 250 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 120 KT 
GUSTS 145 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM OF CENTER 
EXCEPT 70 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 160 NM OF 
CENTER EXCEPT 135 NM SW QUADRANT WITH SEAS TO 40 FT. ELSEWHERE 
WITHIN 150 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 16.3N 123.1W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 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 38 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 16.7N 127.4W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT. LITTLE CHANGE IN RADIUS OF 
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. SEAS TO 32 
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 18.4N 133.0W. MAXIMUM 
SUSTAINED WINDS 85 KT GUSTS 105 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE NORMAN NEAR 19.5N 139.0W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.120 HOUR FORECAST TROPICAL STORM NORMAN NEAR 20.5N 143.5W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 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 17.4N 141.5W 978 MB AT 0900 UTC 
AUG 31 MOVING N OR 360 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 80 
KT GUSTS 100 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 10 
FT. 
.24 HOUR FORECAST HURRICANE MIRIAM W OF AREA NEAR 20.5N 141.5W. 
MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE 
WINDS AND 12 FT SEAS W OF AREA. FROM 19N TO 23N W OF 139W WINDS 
20 TO 30 KT. SEAS 8 TO 10 FT. 
.48 HOUR FORECAST TROPICAL STORM MIRIAM NEAR 24.2N 143.6W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. OVER FORECAST WATERS 
WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.48 HOUR FORECAST LOW PRES... POSSIBLE TROPICAL CYCLONE...NEAR 
16N112W 1009 MB. WITHIN 60 NM OF CENTER WINDS 20 TO 25 KT. SEAS 
TO 8 FT.

.48 HOUR FORECAST N OF 29N BETWEEN 120W AND 124W WINDS 20 KT OR 
LESS. SEAS 8 FT IN N TO NW SWELL.

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

CONVECTION VALID AT 0900 UTC FRI AUG 31...

.HURRICANE NORMAN...NUMEROUS MODERATE TO STRONG WITHIN 120 NM OF 
CENTER EXCEPT 75 NM NE QUADRANT. SCATTERED MODERATE ISOLATED 
STRONG ELSEWHERE WITHIN 150 NM NE AND 210 NM SW SEMICIRCLES.

.HURRICANE MIRIAM...SCATTERED MODERATE FROM 15N TO 20N W OF 
139W. 

.LOW PRES NEAR 13N109W...SCATTERED MODERATE ISOLATED STRONG 
FROM 10N TO 17N BETWEEN 105W AND 110W. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N84W TO LOW PRES NEAR 13N109W 1010 MB TO 
13N111W...RESUMES SW OF NORMAN NEAR 14N126W TO 13N135W. 
SCATTERED MODERATE ISOLATED STRONG FROM 06N TO 10N BETWEEN 83W 
AND 98W.

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.