610 
FZPN03 KNHC 270911
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC MON AUG 27 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MON AUG 27.
24 HOUR FORECAST VALID 0600 UTC TUE AUG 28.
48 HOUR FORECAST VALID 0600 UTC WED AUG 29.

.WARNINGS.

...HURRICANE WARNING...

.TROPICAL STORM MIRIAM NEAR 13.9N 129.2W 1000 MB AT 0900 UTC AUG 
27 MOVING W OR 270 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 50 KT 
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM OF CENTER 
EXCEPT 30 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 0 NM OF 
CENTER EXCEPT 60 NM NE QUADRANT WITH SEAS TO 17 FT.
.24 HOUR FORECAST HURRICANE MIRIAM NEAR 13.8N 133.0W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS 
WITHIN 50 NM NW AND SE QUADRANTS...60 NM NE QUADRANT AND 40 NM 
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 105 NM N AND 75 NM S 
SEMICIRCLES WITH SEAS TO 28 FT. ELSEWHERE WITHIN 150 NM N AND 
120 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST HURRICANE MIRIAM NEAR 14.0N 137.1W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS 
WITHIN 70 NM N SEMICIRCLE...60 NM SE QUADRANT AND 50 NM SW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM N AND 105 NM S 
SEMICIRCLES WITH SEAS TO 34 FT. ELSEWHERE WITHIN 210 NM N AND 
210 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.
.72 HOUR FORECAST HURRICANE MIRIAM NEAR 14.7N 140.2W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE MIRIAM NEAR 17.5N 141.6W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT.
.120 HOUR FORECAST TROPICAL STORM MIRIAM NEAR 22.0N 142.4W.
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.

.42 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
16N115W 1005 MB. WITHIN 90 NM NE QUADRANT WINDS 20 TO 25 KT. 
SEAS TO 8 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
17N116W 1005 MB. WITHIN 120 NM NE QUADRANT WINDS 20 TO 25 KT. 
SEAS TO 9 FT.

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

CONVECTION VALID AT 0900 UTC MON AUG 27...

TROPICAL STORM MIRIAM...NUMEROUS MODERATE TO STRONG FROM 11N TO 
15N BETWEEN 127W AND 131W. SCATTERED MODERATE ELSEWHERE FROM 10N 
TO 16N BETWEEN 125W AND 133W.

TROPICAL WAVE AND ASSOCIATED 1008 MB LOW PRES NEAR 14N108W. 
SCATTERED MODERATE FROM 11N TO 17N BETWEEN 105W AND 111W.  

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 08N78W TO 07N94W TO 10N101W
...THEN RESUMES NEAR 11N109W TO 10N114W TO 11N119W...THEN FROM 
15N134W TO 13N140W. SCATTERED MODERATE CONVECTION FROM 03N TO 
08N E OF 95W...FROM 07N TO 13N BETWEEN 110W AND 121W.

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.