FZNT01 KWBC 180956
HSFAT1 1030
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC WED SEP 18 2024
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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
[email protected](LOWERCASE).
FOR INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH
ATLANTIC ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.PHP
(ALL LOWERCASE).
FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).
THE NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL
OCTOBER 16 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN
DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND
GRAPHICAL PRODUCTS FOR THE HIGH SEAS AREAS ONLY.
TO LEARN MORE PLEASE VISIT (WEB ADDRESS LOWERCASE)
HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP
FROM OCTOBER 15 TO APRIL 1, DUE TO THE CLIMATOLOGY OF THE NORTH
ATLANTIC AND THE FREQUENCY AND VOLUME OF WEATHER HAZARDS, ALONG
WITH CUSTOMER FEEDBACK, HIGH SEAS FORECASTS WILL BE LIMITED TO
WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 12 FEET OR
GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, VOLCANIC ASH,
AND ANYTHING TROPICAL (INCLUDING A DEPRESSION). LESSER
CONDITIONS WILL BE INCLUDED FOR WARNING CONDITIONS AND TO
PRESERVE CONTINUITY WHERE APPROPRIATE.
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 0600 UTC SEP 18.
24 HOUR FORECAST VALID 0600 UTC SEP 19.
48 HOUR FORECAST VALID 0600 UTC SEP 20.
.WARNINGS.
…GALE WARNING…
.LOW 48N41W 1002 MB MOVING NE 10 KT. FROM 40N TO 53N E OF 47W
WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW 52N37W 1001 MB. FROM 47N TO 58N E OF 45W
WINDS 25 TO 35 KT. SEAS 8 TO 14 FT…HIGHEST N OF CENTER.
.48 HOUR FORECAST LOW 54N42W 998 MB. WITHIN 300 NM N QUADRANT
WINDS 35 TO 45 KT. SEAS 12 TO 18 FT. ELSEWHERE FROM 51N TO 64N E
OF 52W WINDS 20 TO 35 KT. SEAS 8 TO 14 FT…HIGHEST NW OF CENTER.
.SYNOPSIS AND FORECAST.
.LOW 60N42W 1014 MB MOVING NE 20 KT. WITHIN 120 NM S SEMICIRCLE
WINDS 20 TO 30 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW AND CONDITIONS NE OF AREA.
.S OF 35N E OF 60W AREA OF NE TO E WINDS 20 TO 30 KT. SEAS 8 TO
13 FT…HIGHEST NEAR 31N52W.
.24 HOUR FORECAST S OF 35N E OF 60W AREA OF NE TO E WINDS TO 25
KT. SEAS TO 10 FT.
.48 HOUR FORECAST S OF 35N E OF 60W AREA OF NE TO E WINDS 20 TO
30 KT. SEAS TO 9 FT.
.LOW 36N76W 1013 MB MOVING NE 10 KT. WITHIN 420 NM NE OF A LINE
FROM 31N65W TO 37N76W WINDS TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 38N73W 1006 MB. WITHIN 90
