000
FZNT01 KWBC 252220
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT SEP 25 2021

CCODE/1:31:04:01:00/AOE/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
VOSOPS@NOAA.GOV(LOWERCASE).

METAREA IV BULLETIN WILL ONLY BE BROADCAST FROM THE INMARSAT
AOE SATELLITE. PLEASE ENSURE YOUR RECEIVER IS POINTED
CORRECTLY.

FOR INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH
ATLANTIC ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.PHP
(ALL LOWERCASE).

SECURITE

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1800 UTC SEP 25.
24 HOUR FORECAST VALID 1800 UTC SEP 26.
48 HOUR FORECAST VALID 1800 UTC SEP 27.

.WARNINGS.

...GALE WARNING...
.LOW E OF AREA NEAR 58N29W 988 MB MOVING SE 15 KT. WITHIN 480 NM
NW AND W AND 540 NM S QUADRANTS WINDS 30 TO 45 KT. SEAS 11 TO
22 FT. ELSEWHERE E OF A LINE FROM 66N58W TO 58N53W TO 47N46W
WINDS 20 TO 30 KT. SEAS 9 TO 17 FT IN MIXED SWELL...EXCEPT N OF
63N W OF 50W SEAS 9 FT OR LESS.
.24 HOUR FORECAST LOW E OF AREA NEAR 57N18W 989 MB. WITHIN 600 NM
E QUADRANT WINDS 25 TO 35 KT. SEAS 14 TO 19 FT. ELSEWHERE WITHIN
780 NM W AND SW QUADRANTS WINDS TO 25 KT. SEAS 9 TO 15 FT IN N
TO NW SWELL.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

...GALE WARNING...
.LOW 37N38W 1007 MB MOVING S 15 KT. WITHIN 240 NM N AND 360 NM NW
QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 14 FT. ELSEWHERE WITHIN
540 NM NW SEMICIRCLE AND 240 NM SW QUADRANT WINDS 20 TO 30 KT.
SEAS TO 10 FT.
.24 HOUR FORECAST LOW 31N38W 1012 MB. WITHIN 480 NM N AND 360 NM
NW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW DISSIPATED. FROM 34N TO 38N E OF 40W AREA
OF E TO NE WINDS TO 25 KT. SEAS 8 TO 11 FT.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 54N48W 1011 MB. FROM 48N TO 54N BETWEEN
43W AND 51W WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
.36 HOUR FORECAST LOW 52N40W 1010 MB. FROM 48N TO 52N BETWEEN
37W AND 44W WINDS 25 TO 35 KT. SEAS 9 TO 13 FT.
.48 HOUR FORECAST LOW E OF AREA 51N35W 1010 MB. FROM 46N TO 50N E
OF 40W AREA OF W WINDS 20 TO 30 KT. SEAS 9 TO 13 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW 45N67W 1000 MB. FRONT TO EXTEND
FROM THE LOW TO 37N61W. WITHIN 300 NM NE QUADRANT AND WITHIN 300
NM E OF FRONT WINDS 20 TO 30 KT. SEAS TO 12 FT...HIGHEST NEAR
41N61W. ELSEWHERE WITHIN 480 NM S QUADRANT WINDS TO 25 KT. SEAS
TO 8 FT.
.30 HOUR FORECAST LOW 47N64W 999 MB. WITHIN 240 NM NE AND 360 NM
E QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW INLAND NEAR 53N64W 994 MB. FRONT TO EXTEND
FROM LOW TO 51N59W TO 39N52W. WITHIN 360 NM NE QUADRANT AND
WITHIN 300 NM E OF FRONT AND ALSO WITHIN 540 NM S QUADRANT WINDS
20 TO 30 KT. SEAS TO 11 FT...HIGHEST NEAR 45N52W.

.SYNOPSIS AND FORECAST.

.POST-TROPICAL CYCLONE TERESA NEAR 34.4N 64.30W 1010 MB AT 2100
UTC SEP 25 MOVING E OR 090 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS
30 KT GUSTS 40 KT. WITHIN 360 NM NE AND 300NM N QUADRANTS AND 90
NM SW SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 12 FT...HIGHEST NEAR
38N63W.
.24 HOUR FORECAST...DISSIPATED.

.W OF A LINE FROM 62N63W TO 59N61W AREA OF E TO SE WINDS 20 TO 30
KT. SEAS TO 9 FT.
.24 HOUR FORECAST FROM 60N TO 62N W OF 63W AREA OF E WINDS TO 25
KT. SEAS TO 8 FT.
.48 HOUR FORECAST W OF A LINE FROM 63N64W TO 59N61W AREA OF E TO
SE WINDS 20 TO 30 KT. SEAS TO 10 FT.

.48 HOUR FORECAST N OF 63N BETWEEN 51W AND 59W AREA OF N WINDS
TO 25 KT. SEAS LESS THAN 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 41N TO 45N
BETWEEN 66W AND 69W AND ALSO FROM 52N TO 54N BETWEEN 47W AND
52W.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 45N BETWEEN 64W AND 67W
AND FROM 51N TO 54N BETWEEN 50W AND 54W.
48 HOUR FORECAST DENSE FOG FROM 43N TO 53N BETWEEN 50W AND 55W.

.HIGH 47N50W 1031 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH 44N43W 1027 MB.
.48 HOUR FORECAST HIGH 41N34W 1027 MB.

.48 HOUR FORECAST HIGH 34N78W 1021 MB.

.FORECASTER BANCROFT. OCEAN PREDICTION CENTER.

NWS NATIONAL HURRICANE CENTER MIAMI FL

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

SYNOPSIS VALID 1800 UTC SAT SEP 25.
24 HOUR FORECAST VALID 1800 UTC SUN SEP 26.
48 HOUR FORECAST VALID 1800 UTC MON SEP 27.

.WARNINGS.

...ATLANTIC HURRICANE WARNING...
.HURRICANE SAM NEAR 13.3N 48.5W 943 MB AT 2100 UTC SEP 25 MOVING
WNW OR 290 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 120 KT GUSTS 145
KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM NE QUADRANT...90 NM
SE QUADRANT...40 NM SW QUADRANT...AND 60 NM NW QUADRANT. SEAS 12
FT OR GREATER WITHIN 120 NM OF CENTER EXCEPT 90 NM SE QUADRANT
WITH SEAS TO 29 FT. ELSEWHERE WITHIN 12N46W TO 12N48W TO 13N50W
TO 15N49W TO 15N47W TO 12N46W WINDS 20 TO 33 KT. SEAS 9 TO 12 FT.
REMAINDER OF AREA WITHIN 13N45W TO 09N48W TO 09N50W TO 16N52W TO
18N47W TO 13N45W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED
SWELL.
.24 HOUR FORECAST HURRICANE SAM NEAR 14.3N 50.5W. MAXIMUM
SUSTAINED WINDS 125 KT GUSTS 150 KT. TROPICAL STORM FORCE WINDS
WITHIN 80 NM NE QUADRANT...90 NM SE QUADRANT...50 NM SW
QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
120 NM OF CENTER WITH SEAS TO 32 FT. ELSEWHERE WITHIN 14N48W TO
13N49W TO 14N52W TO 16N52W TO 16N49W TO 14N48W WINDS 20 TO 33 KT.
SEAS 9 TO 12 FT. REMAINDER OF AREA WITHIN 12N47W TO 09N50W TO
15N57W TO 21N52W TO 19N48W TO 12N47W WINDS 20 KT OR LESS. SEAS 8
TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE SAM NEAR 15.7N 52.7W. MAXIMUM
SUSTAINED WINDS 120 KT GUSTS 145 KT. TROPICAL STORM FORCE WINDS
WITHIN 90 NM E SEMICIRCLE...60 NM SW QUADRANT AND 80 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM IN N SEMICIRCLE AND
120 NM IN S SEMICIRCLE WITH SEAS TO 34 FT. ELSEWHERE WITHIN
14N51W TO 14N53W TO 17N54W TO 18N53W TO 17N50W TO 14N51W WINDS 20
TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA WITHIN 15N49W TO
09N55W TO 16N59W TO 22N56W TO 22N52W TO 15N49W WINDS 20 KT OR
LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE SAM NEAR 17.4N 55.0W. MAXIMUM
SUSTAINED WINDS 115 KT GUSTS 140 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE SAM NEAR 19.5N 58.0W. MAXIMUM
SUSTAINED WINDS 110 KT GUSTS 135 KT.
.120 HOUR FORECAST HURRICANE SAM NEAR 22.5N 61.0W. MAXIMUM
SUSTAINED WINDS 110 KT GUSTS 135 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.

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


.FORECASTER AREINHART. NATIONAL HURRICANE CENTER.

$$