187 
FZPN03 KNHC 270300
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MON AUG 27.
24 HOUR FORECAST VALID 0000 UTC TUE AUG 28.
48 HOUR FORECAST VALID 0000 UTC WED AUG 29.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM MIRIAM NEAR 13.8N 127.9W 1001 MB AT 0300 UTC AUG 
27 MOVING W OR 275 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 45 KT 
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM OF CENTER 
EXCEPT 20 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 0 NM OF 
CENTER EXCEPT 30 NM NE QUADRANT WITH SEAS TO 13 FT.
.24 HOUR FORECAST HURRICANE MIRIAM NEAR 13.7N 131.9W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 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 90 NM N AND 90 NM S 
SEMICIRCLES WITH SEAS TO 28 FT. ELSEWHERE WITHIN 180 NM N AND 
120 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST HURRICANE MIRIAM NEAR 13.9N 136.0W. 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 150 NM NW AND 90 NM SE 
SEMICIRCLES WITH SEAS TO 34 FT. ELSEWHERE WITHIN 300 NM NW AND 
180 NM SE SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.
.72 HOUR FORECAST HURRICANE MIRIAM NEAR 14.3N 139.5W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE MIRIAM NEAR 14.3N 139.5W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT.
.120 HOUR FORECAST HURRICANE MIRIAM NEAR 14.3N 139.5W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 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.

.LOW PRES NEAR 11N107W 1009 MB. WINDS 20 KT OR LESS. SEAS LESS 
THAN 8 FT.
.09 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
11N114W 1009 MB. FROM 12N TO 14N BETWEEN 106W AND 108W SE WINDS 
20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
14N112W 1008 MB. WITHIN 210 NM NE QUADRANT WINDS 20 TO 25 KT.
SEAS 8 TO 10 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
15N116W 1007 MB. WITHIN 150 NM N SEMICIRCLE WINDS 20 TO 25 KT. 
SEAS 8 TO 11 FT.

.FROM 10N TO 13N E OF 88W...INCLUDING GULF OF PAPAGAYO...NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.09 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST FROM 10N TO 13N E OF 88W...INCLUDING GULF OF 
PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.33 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. 
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 0245 UTC MON AUG 27...

TROPICAL STORM MIRIAM...NUMEROUS MODERATE TO STRONG FROM 12N TO 
15N BETWEEN 125W AND 129W. SCATTERED MODERATE ELSEWHERE FROM 09N 
TO 17N BETWEEN 124W AND 132W.

TROPICAL WAVE AND ASSOCIATED 1009 MB LOW PRES NEAR 11N107W. 
SCATTERED MODERATE FROM 08N TO 16N BETWEEN 104W AND 110W.  

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 08N78W TO 07N94W TO 
09N101W...THEN RESUMES NEAR 10N109W TO 09N114W TO 12N118W...THEN 
FROM 15N133W TO 13N140W. SCATTERED MODERATE CONVECTION FROM 04N 
TO 10N BETWEEN 82W AND 93W...FROM 07N TO 13N BETWEEN 110W AND 
121W. ISOLATED MODERATE WITHIN 90 NM EITHER SIDE OF MONSOON W OF 
132W.

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.