000
FZNT02 KNHC 212105
HSFAT2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC FRI OCT 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC FRI OCT 21.
24 HOUR FORECAST VALID 1800 UTC SAT OCT 22.
48 HOUR FORECAST VALID 1800 UTC SUN OCT 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC STATIONARY FRONT 31N69W TO 21N78W. S OF 25N W OF FRONT N 
TO NE WINDS 20 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST TROUGH 31N71W TO 21N76W. WINDS LESS THAN 20 
KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST TROUGH 31N70W TO 23N73W. N OF 29N W OF 78W NE 
WINDS 20 KT. SEAS LESS THAN 8 FT.

.ATLC N OF 22N BETWEEN 35W AND 62W NE TO E WINDS 20 KT. SEAS TO 
10 FT IN E SWELL.
.24 HOUR FORECAST N OF 23N BETWEEN 38W AND 65W WINDS LESS THAN 
20 KT. SEAS TO 9 FT IN NE SWELL.
.48 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

.ATLC TROUGH 09N55W TO 21N38W. E OF 45N WITHIN 120 NM S OF 
TROUGH S WINDS 20 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST TROUGH DISSIPATED. WINDS LESS THAN 20 KT. SEAS 
LESS THAN 8 FT.

.CARIBBEAN FRONTAL TROUGH 21N79W TO 16N83W AND LOW PRES 13N80W 
1008 MB. W OF TROUGH NE TO N WINDS 20 TO 25 KT. SEAS TO 10 FT.
POSSIBLE TROPICAL CYCLONE FORMATION.
.24 HOUR FORECAST FRONTAL TROUGH 21N76W TO 15N83W AND LOW 
PRES...POSSIBLE TROPICAL CYCLONE...NEAR 13N80W 1008 MB. W OF 
TROUGH AND LOW PRES NE TO N WINDS 20 KT. SEAS TO 10 FT.
.48 HOUR FORECAST TROUGH DIFFUSE AND LOW PRES...POSSIBLE 
TROPICAL CYCLONE NEAR 14.5N80W 1007 MB. WITHIN 150 NM OF LOW AND 
ELSEWHERE W OF 81W WINDS 20 KT. SEAS TO 9 FT.

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

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.