High Seas Forecast
Issued by NWS

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000
FZNT02 KNHC 231003
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SAT SEP 23.
24 HOUR FORECAST VALID 0600 UTC SUN SEP 24.
48 HOUR FORECAST VALID 0600 UTC MON SEP 25.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE MARIA NEAR 24.8N 72.0W 952 MB AT 0900 UTC SEP 23
MOVING NNW OR 345 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 105 KT
GUSTS 130 KT. TROPICAL STORM FORCE WINDS WITHIN 170 NM E
SEMICIRCLE...100 NM SW QUADRANT AND 120 NM NW QUADRANT. SEAS 12
FT OR GREATER WITHIN 360 NM NE QUADRANT...240 NM SE QUADRANT
...150 NM SW QUADRANT...AND 390 NM NW QUADRANT WITH SEAS TO 44
FT. ELSEWHERE WITHIN 360 NM NE AND 150 NM SW SEMICIRCLES OF
CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER ATLC WATERS
FROM 20N TO 31N BETWEEN 63W 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 21N TO 26N BETWEEN 67W AND 69W.
.24 HOUR FORECAST HURRICANE MARIA NEAR 27.7N 72.7W. MAXIMUM
SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS
WITHIN 170 NM E SEMICIRCLE...110 NM SW QUADRANT AND 140 NM NW
QUADRANT. SEAS 12 FT OR GREATER N OF 23N BETWEEN 67W AND 80W NE
OF BAHAMAS WITH SEAS TO 40 FT. ELSEWHERE OVER FORECAST WATERS
WITHIN 330 NM NW AND 240 NM SE SEMICIRCLES OF CENTER WINDS 20 TO
33 KT. SEAS 9 TO 14 FT. REMAINDER OPEN WATERS N OF 20N W OF 61W
INCLUDING BAHAMAS PASSAGES WINDS 20 KT OR LESS. SEAS 8 TO 12 FT
IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE MARIA NEAR 30.3N 73.0W. MAXIMUM
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS
WITHIN 170 NM E SEMICIRCLE...140 NM SW QUADRANT AND 150 NM NW
QUADRANT. SEAS 12 FT OR GREATER N OF 24N BETWEEN 66W AND 79W N
AND NE OF BAHAMAS WITH SEAS TO 40 FT. ELSEWHERE OVER FORECAST
WATERS WITHIN 330 NM E AND 240 NM W SEMICIRCLES OF CENTER WINDS
20 TO 33 KT. SEAS 10 TO 19 FT IN OPEN WATERS. REMAINDER OF OPEN
WATERS N OF 20N W OF 62W WINDS 20 KT OR LESS. SEAS 9 TO 14 FT IN
MIXED SWELL.
.72 HOUR FORECAST HURRICANE MARIA NEAR 32.0N 73.0W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS 105 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE MARIA NEAR 34.0N 73.0W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.120 HOUR FORECAST HURRICANE MARIA NEAR 36.0N 71.5W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT.

...ATLC TROPICAL STORM WARNING...
.TROPICAL STORM LEE NEAR 31.7N 49.2W 1009 MB AT 0900 UTC SEP 23
MOVING N OR 360 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 35 KT GUSTS
45 KT. TROPICAL STORM FORCE WINDS WITHIN 30 NM OF CENTER. SEAS
12 FT OR GREATER WITHIN 30 NM OF CENTER WITH SEAS TO 14 FT.
.24 HOUR FORECAST TROPICAL STORM LEE NEAR 32.4N 48.5W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS
WITHIN 50 NM OF CENTER EXCEPT 40 NM NW QUADRANT. SEAS 12 FT OR
GREATER WITHIN 60 NM E AND 30 NM W SEMICIRCLES OF CENTER WITH
SEAS TO 15 FT. ELSEWHERE WITHIN 60 NM OF CENTER WINDS 20 TO 33
KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST TROPICAL STORM LEE NEAR 31.7N 46.2W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 KT. SEAS 12 FT OR GREATER WITHIN
60 NM OF CENTER WITH SEAS TO 22 FT. ELSEWHERE WITHIN 90 NM E
SEMICIRCLE AND 60 NM W SEMICIRCLE OF CENTER WINDS 20 TO 33 KT.
SEAS 8 TO 12 FT.
.72 HOUR FORECAST HURRICANE LEE NEAR 30.5N 44.5W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE LEE NEAR 29.8N 45.0W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.120 HOUR FORECAST TROPICAL STORM LEE NEAR 30.5N 46.5W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 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.

.ATLC 24 HOUR FORECAST FROM 10N TO 16N BETWEEN 44W AND 50W WINDS
20 KT OR LESS. SEAS TO 8 FT IN MIXED NE AND SE SWELL.
.36 HOUR FORECAST FROM 09N TO 15N BETWEEN 45W AND 53W WINDS 20
KT OR LESS. SEAS TO 8 FT IN MIXED NE AND SE SWELL.
.48 HOUR FORECAST FROM 10N TO 14N BETWEEN 48W AND 54W WINDS 20
KT OR LESS. SEAS TO 8 FT IN MIXED NE AND SE SWELL.

.ATLC 36 HOUR FORECAST N OF 28N E OF 48W WINDS 20 KT OR LESS.
SEAS 8 TO 9 FT IN NW TO N SWELL.
.48 HOUR FORECAST N OF 18N E OF 42W WINDS 20 KT OR LESS. SEAS
8 FT IN N SWELL.

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

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.


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