000
FZPN03 KNHC 250312
HSFEP2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC TUE SEP 25 2012

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SYNOPSIS VALID 0000 UTC TUE SEP 25.
24 HOUR FORECAST VALID 0000 UTC WED SEP 26.
48 HOUR FORECAST VALID 0000 UTC THU SEP 27.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE MIRIAM AT 18.5N 113.9W 968 MB AT 0300 UTC SEP 25 
MOVING NW OR 305 DEG AT 7 KT. MAXIMUM SUSTAINED WIND 90 GUSTS 
110 KT. TROPICAL STORM FORCE WIND WITHIN 110 NM NE QUADRANT... 
100 NM SE QUADRANT...80 NM SW QUADRANT...AND 90 NM NW QUADRANT. 
SEAS 12 FT OR GREATER WITHIN 210 NM NW AND SE QUADRANTS...240 NM 
NE QUADRANT AND 180 NM SW QUADRANT WITH SEAS TO 37 FT.
.24 HOUR FORECAST HURRICANE MIRIAM NEAR 19.8N 114.9W. MAXIMUM 
SUSTAINED WIND 80 GUSTS 100 KT. TROPICAL STORM FORCE WIND 
WITHIN 100 NM NE QUADRANT...90 NM SE QUADRANT...60 NM SW 
QUADRANT...AND 80 NM NW QUADRANT. LITTLE CHANGE IN SEAS 12 FT 
OR GREATER.
.48 HOUR FORECAST HURRICANE MIRIAM NEAR 21.8N 115.2W. MAXIMUM 
SUSTAINED WIND 65 GUSTS 80 KT. TROPICAL STORM FORCE WIND WITHIN 
60 NM W SEMICIRCLE...100 NM NE QUADRANT AND 90 NM SE QUADRANT. 
SEAS 12 FT OR GREATER WITHIN 120 NM E AND 60 NM W SEMICIRCLES 
WITH SEAS TO FT.
.72 HOUR FORECAST TROPICAL STORM MIRIAM NEAR 23.7N 115.4W. 
MAXIMUM SUSTAINED WIND 50 GUSTS 60 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM MIRIAM NEAR 25.5N 115.0W. 
MAXIMUM SUSTAINED WIND 40 GUSTS 50 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW MIRIAM NEAR 27.0N 
114.5W. MAXIMUM SUSTAINED WIND 30 GUSTS 40 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.

.EXCEPT AS NOTED IN WARNINGS...WITHIN 360 NM NE...300 NM SE AND 
NW AND 180 NM SW QUADRANTS WINDS TO 33 KT. SEAS TO 12 FT.
.24 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS...WITHIN 300 NM 
...EXCEPT 150 NM SW QUADRANT WINDS TO 33 KT. SEAS TO 12 FT. 
ELSEWHERE FROM 12N TO 25N BETWEEN 108 AND 122W WINDS 20 KT OR 
LESS. SEAS TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS...WITHIN 270 NM 
...EXCEPT 150 NM SW QUADRANT WINDS TO 33 KT. SEAS TO 12 FT.

.W OF LINE 30N125W TO 13N133W TO 00N112W WINDS 20 KT OR LESS.  
SEAS TO 12 FT IN MIXED SE AND NW SWELL.
.24 HOUR FORECAST ELSEWHERE W OF LINE 30N116W TO 10N125W TO 
00N110W WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SW AND NW 
SWELL.
.48 HOUR FORECAST ELSEWHERE W OF 110W WINDS 20 KT OR LESS. 
SEAS TO 11 FT IN MIXED SW AND NW SWELL.

.WITHIN 30 NM OF LINE 16N95W TO 14N96W INCLUDING GULF OF 
TEHUANTEPEC...N TO NE WINDS 20 KT OF LESS. SEAS TO 8 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 0300 UTC WED SEP 25...

.HURRICANE MIRIAM NUMEROUS STRONG FROM 16N TO 22N BETWEEN 111W 
AND 116W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO 11N97W TO 11N103W TO 13N106W... 
THEN RESUMES FROM 16N115W TO 14N123W THEN ITCZ 09N140W. 
SCATTERED MODERATE WITHIN 270 NM S OF AXIS E OF 87W...WITHIN 150 
NM S OF AXIS FROM 96W TO 106W AND WITHIN 120 NM S OF AXIS W OF 
131W.

$$
.FORECASTER WALLY BARNES. NATIONAL HURRICANE CENTER.