High Seas Forecast
Issued by NWS

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000
FZNT02 KNHC 232053
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC SAT SEP 23 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

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

SYNOPSIS VALID 1800 UTC SAT SEP 23.
24 HOUR FORECAST VALID 1800 UTC SUN SEP 24.
48 HOUR FORECAST VALID 1800 UTC MON SEP 25.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE MARIA NEAR 26.3N 72.5W 950 MB AT 2100 UTC SEP 23
MOVING NNW OR 345 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 100 KT
GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 210 NM NE
QUADRANT...200 NM SE QUADRANT...100 NM SW QUADRANT...AND 150 NM
NW QUADRANT.  SEAS 12 FT OR GREATER WITHIN 330 NM N
SEMICIRCLE...300 NM SE QUADRANT AND 180 NM SW QUADRANT WITH SEAS
TO 40 FT. ELSEWHERE WITHIN 360 NM NE AND 210 NM SW SEMICIRCLES
OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER ATLC
WATERS E OF BAHAMAS FROM 20N TO 31N BETWEEN 64W AND 80W WINDS 20
KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. NUMEROUS STRONG
TSTMS WITHIN 120 NM SW AND 60 NM NE SEMICIRCLES OF CENTER.
SCATTERED MODERATE ISOLATED STRONG ELSEWHERE FROM 23N TO 28N
BETWEEN 68W AND 75W.
.24 HOUR FORECAST HURRICANE MARIA NEAR 29.1N 73.1W. MAXIMUM
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS
WITHIN 200 NM E SEMICIRCLE...120 NM SW QUADRANT AND 160 NM NW
QUADRANT. SEAS 12 FT OR GREATER OVER FORECAST WATERS N OF 24N
BETWEEN 66W AND 80W NE OF BAHAMAS WITH SEAS TO 40 FT. ELSEWHERE
OVER FORECAST WATERS N OF 24N BETWEEN 66W AND 78W WINDS 20 TO 33
KT. SEAS 9 TO 14 FT. REMAINDER ATLC WATERS E OF BAHAMAS FROM 20N
TO 31N W OF 63W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED
SWELL.
.48 HOUR FORECAST HURRICANE MARIA NEAR 31.1N 73.3W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS
WITHIN 200 NM E SEMICIRCLE...140 NM SW QUADRANT AND 160 NM NW
QUADRANT. SEAS 12 FT OR GREATER OVER FORECAST WATERS N OF 26N
BETWEEN 65W AND 80W NE OF BAHAMAS WITH SEAS TO 36 FT. ELSEWHERE
OVER FORECAST WATERS N OF 26N BETWEEN 65W AND 76W WINDS 20 TO 33
KT. SEAS 9 TO 14 FT. REMAINDER ATLC WATERS E OF BAHAMAS FROM 22N
TO 31N W OF 64W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED
SWELL.
.72 HOUR FORECAST HURRICANE MARIA NEAR 32.9N 73.3W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE MARIA NEAR 34.5N 73.5W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.120 HOUR FORECAST HURRICANE MARIA NEAR 35.0N 72.0W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 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.

.TROPICAL STORM LEE NORTH OF AREA. OVER FORECAST WATERS N OF 30N
BETWEEN 48W AND 52W SW TO W WINDS 20 TO 25 KT. SEAS TO 10 FT.
.TROPICAL STORM LEE N OF AREA. OVER FORECAST WATERS N OF 30N
BETWEEN 47W AND 50W SW TO W WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST TROPICAL STORM LEE N OF AREA. N OF 30N BETWEEN
44W AND 49W SW TO W WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.

.ATLC 24 HOUR FORECAST N OF 29N E OF 40W WINDS 20 KT OR LESS.
SEAS 8 TO 9 FT IN NW TO N SWELL.
.48 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.

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.



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