000
FZNT02 KNHC 200240
HSFAT2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC THU OCT 20 2011

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND 
GULF OF MEXICO

SYNOPSIS VALID 0000 UTC THU OCT 20.
24 HOUR FORECAST VALID 0000 UTC FRI OCT 21.
48 HOUR FORECAST VALID 0000 UTC SAT OCT 22.

.WARNINGS.

...ATLC GALE WARNING...
.COLD FRONT 31N78W TO 23N81W. N OF 27N E OF FRONT TO 73W S TO SW 
WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.
.12 HOUR FORECAST WINDS LESS THAN GALE FORCE.

.SYNOPSIS AND FORECAST.

.ATLC EXCEPT AS NOTED IN WARNING...N OF 27N W OF 65W AND S OF 
27N W OF 73W S TO SW WINDS 20 TO 25 KT. SEAS TO 10 FT.
.12 HOUR FORECAST COLD FRONT 31N73W TO 22N78W. W OF FRONT W TO 
NW WINDS 20 KT. SEAS TO 11 FT N OF 27N. N OF 27N WITHIN 300 NM E 
OF FRONT S TO SW WINDS 20 TO 25 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST COLD FRONT 31N70W TO 21N77W. N OF 27N W OF 
FRONT TO 75W W WINDS 20 KT. SEAS TO 10 FT IN NW SWELL. S OF 27N 
W OF FRONT NW TO N WINDS 20 KT. SEAS LESS THAN 8 FT. N OF 28N 
WITHIN 180 NM E OF FRONT S TO SW WINDS 20 KT. SEAS TO 10 FT IN S 
AND W SWELL. 
.48 HOUR FORECAST WEAKENING STATIONARY FRONT 31N69W TO 21N76W. S 
OF 27N W OF FRONT NE WINDS 20 KT. SEAS LESS THAN 8 FT.

.ATLC LOW PRES 28N42W 1015 MB. N OF 28N E OF 45W NE TO E WINDS 
20 TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW PRES DISSIPATED. N OF 27N E OF 58W NE TO E 
WINDS 20 TO 25 KT. SEAS TO 11 FT.
.48 HOUR FORECAST N OF 23N E OF 63W NE TO E WINDS 20 KT. SEAS 8 
TO 11 FT PRIMARILY IN NE SWELL.

.ATLC TROUGH 07N50W TO 17N35W. WITHIN 300 NM NW OF TROUGH NE 
WINDS 20 KT. SEAS TO 8 FT. SCATTERED TSTMS S OF 13N BETWEEN 55W 
AND 35W. 
.24 HOUR FORECAST TROUGH 07N50W TO 21N35W. E OF 45W WITHIN 180 
NM NW OF TROUGH NE WINDS 20 KT. SEAS TO 8 FT. E OF 45W WITHIN 
180 NM SE OF TROUGH S TO SW WINDS 20 KT. SEAS TO 8 FT. SCATTERED 
TSTMS WITHIN 180 NM OF TROUGH. 
.48 HOUR FORECAST TROUGH 11N55W TO 14N55W TO 20N35W. E OF 45W 
WITHIN 180 NM NW OF TROUGH NE WINDS 20 KT. SEAS TO 9 FT. E OF 
45W WITHIN 240 NM SE OF TROUGH S TO SW WINDS 20 TO 25 KT. SEAS 
TO 10 FT. SCATTERED TSTMS WITHIN 240 NM OF TROUGH. 

.CARIBBEAN COLD FRONT 23N81W TO 18N88W. N OF 16N W OF 83W NW 
WINDS 20 TO 25 KT. SEAS TO 10 FT IN YUCATAN CHANNEL.
.24 HOUR FORECAST STATIONARY FRONT 21N77W TO 15N80W TO LOW PRES 
12N80W 1010 MB. W OF FRONT NW TO N WINDS 20 TO 25 KT. SEAS TO 9 
FT.
.48 HOUR FORECAST FRONTAL TROUGH 22N76W TO 15N81W TO BROAD LOW 
PRES 11N81W 1010 MB. W OF FRONTAL TROUGH AND LOW NW TO N WINDS 
20 KT. SEAS TO 8 FT. SCATTERED TSTMS NEAR TROUGH AND LOW. 

.GULF OF MEXICO E OF 96W NW TO N WINDS 20 TO 25 KT. SEAS 8 TO 13 
FT IN NW SWELL.
.24 HOUR FORECAST N OF 26N E OF 85W AND S OF 26N E OF 87W WINDS 
LESS THAN 20 KT. SEAS TO 9 FT PRIMARILY IN NW SWELL.
.36 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. 

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

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.