000
FZPN03 KNHC 210946
HSFEP2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
1030 UTC TUE SEP 21 2010

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W

SYNOPSIS VALID 0600 UTC TUE SEP 21.
24 HOUR FORECAST VALID 0600 UTC WED SEP 22.
48 HOUR FORECAST VALID 0600 UTC THU SEP 23.

.WARNINGS.
...GALE WARNING...
.LOW PRES NEAR 21.5N109W 1001 MB MOVING NW 9 KT. WITHIN 90 NM OF 
LOW CENTER WINDS 25 TO 35 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST LOW PRES NEAR 23.5N111W 1003 MB. WITHIN 90 NM 
OF LOW CENTER WINDS 25 TO 35 KT. SEAS TO 10 FT.
.30 HOUR FORECAST LOW PRES 24N112W 1005 MB. WINDS BELOW GALE 
FORCE. 
 
.SYNOPSIS AND FORECAST.
.EXCEPT AS NOTED IN WARNINGS SECTION...WITHIN 180 NM SE 
SEMICIRCLE WINDS 20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
23.5N111W 1003 MB. EXCEPT AS NOTED ABOVE...WITHIN 120 NM OF LOW 
WINDS 20 KT. SEAS TO 8 FT.
.30 HOUR FORECAST LOW PRES 24N112W 1005 MB. WITHIN 120 NM OF LOW 
WINDS 20 TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW PRES 26N112W 1004 MB. OVER FORECAST WATERS 
WITHIN 90 NM OF LOW CENTER WINDS 20 TO 25 KT. SEAS TO 9 FT.  

.LOW PRES NEAR 13N123.5W 1009 MB MOVING NE 5 KT. WITHIN 90 NM OF 
LOW CENTER WINDS 20 TO 25 KT. SEAS 8 TO 12 FT IN SW SWELL. 
ELSEWHERE FROM 09N TO 13N BETWEEN 100W AND 127W SW TO W WINDS 20 
TO 25 KT. SEAS 8 TO 11 FT IN MIXED SW SWELL. ELSEWHERE FROM 09N 
TO 11N BETWEEN 127W AND 135W SW TO W WINDS 20 KT. SEAS 8 T0 9 FT 
IN MIXED SW SWELL. REMAINDER OF AREA FROM 08N TO 18N BETWEEN 93W 
AND 112W WINDS LESS THAN 20 KT. SEAS TO 8 FT IN SW SWELL.
.24 HOUR FORECAST LOW PRES 14N119W 1006 MB. WITHIN 120 NM SE AND 
60 NM NW SEMICIRCLES OF LOW WINDS 20 TO 25 KT. SEAS 8 TO 12 FT 
IN SW SWELL. ELSEWHERE FROM 09N TO 14N BETWEEN 102W AND 123W SW 
TO W WINDS 20 TO 25 KT. SEAS 8 TO 11 FT IN MIXED SW SWELL. 
REMAINDER OF AREA FROM 08N TO 16N BETWEEN 98W AND 122W WINDS 
LESS THAN 20 KT. SEAS TO 8 FT IN SW SWELL.
.48 HOUR FORECAST LOW PRES 14.5N112.5W 1004 MB. WITHIN 60 NM OF 
LOW CENTER WINDS 20 TO 25 KT. SEAS 8 TO 12 FT IN SW SWELL. 
ELSEWHERE FROM 10N TO 14N BETWEEN 100W AND 120W...AND FROM 10N 
TO 13N BETWEEN 120W AND 130W SW TO W WINDS 20 TO 25 KT. SEAS 8 
TO 11 FT IN SW SWELL. FROM 06N TO 11N BETWEEN 91W AND 100W SW 
WINDS 20 KT. SEAS TO 9 FT IN SW SWELL.

.N OF 23N BETWEEN 112W AND 121W NW TO N WINDS 20 KT. SEAS TO 9 
FT. FROM 20N TO 23N BETWEEN 114W AND 121W WINDS LESS THAN 20 KT. 
SEAS TO 8 FT IN NW SWELL.
.24 HOUR FORECAST N OF 26N E OF 121W TO W COAST OF BAJA 
CALIFORNIA NW TO N WINDS TO 20 KT. SEAS TO 8 FT. FROM 20N TO 26N 
BETWEEN 114W AND 118W WINDS LESS THAN 20 KT. SEAS TO 8 FT IN NW 
SWELL.  
.48 HOUR FORECAST N OF 28N E OF 122W NW WINDS 20 KT. SEAS 8 FT. 

.GULF OF CALIFORNIA S TO SE WINDS 20 KT LOCALLY TO 25 KT. SEAS 
LESS THAN 8 FT. 
.24 HOUR FORECAST GULF OF CALIFORNIA N OF 25N...EXCEPT AS NOTED 
ABOVE SE TO S WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

.24 HOUR FORECAST LOW PRES 12N129W 1008 MB. WITHIN 120 NM OF LOW 
CENTER WINDS 20 TO 25 KT. SEAS TO 10 FT. ELSEWHERE FROM 09N TO 
12N BETWEEN 123W AND 132W WINDS 20 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW PRES 12N125.5W 1007 MB. WITHIN 120 NM OF 
LOW CENTER WINDS 20 TO 25 KT. SEAS TO 9 FT. ELSEWHERE FROM 09N 
TO 14N BETWEEN 120W AND 130W WINDS 20 KT. SEAS TO 9 FT.

.24 HOUR FORECAST FROM 14N TO 20N W OF 130W WINDS LESS THAN 20 
KT. SEAS TO 8 FT IN PRIMARILY NW SWELL.
.48 HOUR FORECAST FROM 15N TO 19N W OF 135W NE WINDS TO 20 KT. 
SEAS TO 8 FT IN NW SWELL.

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

CONVECTION VALID AS OF 0900 UTC MON SEP 21...

.SCATTERED MODERATE TO STRONG FROM 10N TO 15N BETWEEN 92W AND 
110W. SIMILAR CONVECTION WAS N OF 05N E OF 99W.  

INTERTROPICAL CONVERGENCE ZONE...MONSOONAL S TO SW WINDS 
DOMINATE THE DEEP TROPICS. THE ASSOCIATED MONSOON TROUGH WAS 
ANALYZED FROM 19N107W TO 14N113W TO LOW PRES 13N123.5W 1009 MB 
TO 11N140W. SCATTERED TO LOCALLY NUMEROUS MODERATE ISOLATED 
STRONG CONVECTION WAS NOTED WITHIN 45 NM N AND 210 NM S OF AXIS 
W OF 117W.

$$
.FORECASTER STRIPLING. TROPICAL PREDICTION CENTER.