000
FZPN03 KNHC 241527
HSFEP2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC MON SEP 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MON SEP 24.
24 HOUR FORECAST VALID 1200 UTC TUE SEP 25.
48 HOUR FORECAST VALID 1200 UTC WED SEP 26.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE MIRIAM NEAR 17.7N 112.9W 958 MB AT 1500 UTC SEP 24
MOVING NW OR 305 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 105 KT
GUSTS 125 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM NW AND SE
QUADRANTS...100 NM NE QUADRANT AND 70 NM SW QUADRANT.  SEAS 12
FT OR GREATER WITHIN 230 NM NE QUADRANT...180 NM SE
QUADRANT...120 NM SW QUADRANT...AND 150 NM NW QUADRANT WITH SEAS
TO 30 FT.
.24 HOUR FORECAST HURRICANE MIRIAM NEAR 19.1N 114.6W. 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 29 
FT.
.48 HOUR FORECAST HURRICANE MIRIAM NEAR 20.9N 115.1W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS
WITHIN 110 NM NE QUADRANT...90 NM SE QUADRANT...70 NM SW
QUADRANT...AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
210 NM...EXCEPT 180 NM SW QUADRANT WITH SEAS TO 28 FT.
.72 HOUR FORECAST HURRICANE MIRIAM NEAR 22.8N 115.3W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM MIRIAM NEAR 24.8N 114.8W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
.120 HOUR FORECAST TROPICAL STORM MIRIAM NEAR 26.1N 113.7W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 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 280 NM NE 230 NM SE AND NW 
AND 180 NM SW QUADRANTS OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 
12 FT.
.24 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS...WITHIN 270 
NM...EXCEPT 180 NM SW QUADRANT OF CENTER WINDS 20 TO 33 KT. SEAS 
8 TO 12 FT. ELSEWHERE FROM 12N TO 25N BETWEEN 108 AND 122W WINDS 
20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS...WITHIN 270 
NM...EXCEPT 210 NM SW QUADRANT OF CENTER WINDS 20 TO 33 KT. SEAS 
8 TO 12 FT.

.NW OF LINE 30N130W TO 18N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 
FT IN NW SWELL.
.24 HOUR FORECAST NW OF LINE 30N119W TO 20N125W TO 05N140W WINDS 
20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.48 HOUR FORECAST ELSEWHERE N OF 10N W OF 110W WINDS 20 KT OR 
LESS. SEAS 8 TO 11 FT IN MIXED SWELL.

.WITHIN 30 NM EITHER SIDE OF LINE 16N95W TO 14N96W INCLUDING THE 
GULF OF TEHUANTEPEC...N TO NE WINDS 20 KT OF LESS. SEAS TO 8 FT.
.24 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 1500 UTC MON SEP 24...

.HURRICANE MIRIAM NUMEROUS STRONG FROM 15N TO 21N BETWEEN 110W 
AND 114W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO 11N100W TO 09102W...THEN RESUMES 
FROM 13N117W TO 10N130W. ITCZ FROM 10N130W TO 07N140W. SCATTERED 
STRONG WITHIN 200 NM N OF AXIS FROM 92W TO 97W. SCATTERED 
MODERATE WITHIN 60 NM S OF AXIS FROM 132W TO 137W.

$$
.FORECASTER DGS. NATIONAL HURRICANE CENTER.