873
FZPN01 KWBC 192135
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT OCT 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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
VOSOPS@NOAA.GOV(LOWERCASE).

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

SECURITE

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT
TO 50N 160E

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1800 UTC OCT 19.
24 HOUR FORECAST VALID 1800 UTC OCT 20.
48 HOUR FORECAST VALID 1800 UTC OCT 21.

.WARNINGS.

...STORM WARNING...
.LOW NW OF AREA 54N160E MOVING NE 30 KT. W OF A LINE FROM
54N166E TO 49N166E TO 45N160E WINDS 35 TO 50 KT. SEAS 14 TO 22
FT. ELSEWHERE W OF A LINE FROM 55N171E TO 47N166E TO 42N160E
WINDS 25 TO 40 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW INLAND 64N167E 962 MB. W OF A LINE FROM
66N167W TO 60N165W TO 53N172W TO 48N180W TO 46N160E WINDS 30 TO
45 KT. SEAS 12 TO 26 FT...EXCEPT 8 TO 12 FT E OF 172W. ELSEWHERE
W OF A LINE FROM 47N176E TO 40N165E WINDS 20 TO 30 KT. SEAS 8 TO
14 FT.
.48 HOUR FORECAST LOW WELL NW OF AREA. W OF A LINE FROM 66N160W
TO 53N176W TO 52N180W WINDS 25 TO 40 KT. SEAS 12 TO 23 FT.

...GALE WARNING...
.LOW 59N143W 1006 MB MOVING SE 10 KT. FROM 55N TO 59N BETWEEN
150W AND 156W WINDS 25 TO 35 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW DISSIPATED. FROM 50N TO 59N BETWEEN 146W
AND 157W WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

...GALE WARNING...
.WITHIN 240 NM N OF A LINE FROM 30N172W TO 32N157W TO 34N150W
WINDS 20 TO 30 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 32N171W 1015 MB. WITHIN 300 NM N OF A LINE
FROM 33N172W TO 33N160W WINDS 25 TO 40 KT. SEAS 9 TO 15 FT.
ELSEWHERE WITHIN 420 NM N OF A LINE FROM 35N179W TO 32N160W
WINDS 20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 33N175W 1011 MB. WITHIN 300 NM N OF A LINE
FROM 31N157W TO 33N165W TO 34N175W TO 34N180W WINDS 25 TO 40 KT.
SEAS 10 TO 18 FT.

...GALE WARNING...
.LOW 47N142W 1015 MB MOVING E 20 KT. FROM 41N TO 48N BETWEEN
141W AND 152W WINDS TO 25 KT. SEAS TO 10 FT.
.18 HOUR FORECAST LOW 48N134W 1010 MB. FROM 43N TO 47N BETWEEN
133W AND 137W WINDS 25 TO 35 KT. SEAS 9 TO 13 FT.
.24 HOUR FORECAST LOW 46N132W 1014 MB. FROM 42N TO 49N BETWEEN
131W AND 145W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 47N125W 1016 MB. WITHIN 180 NM S
SEMICIRCLE WINDS TO 25 KT. SEAS TO 10 FT.

...GALE WARNING...
.24 HOUR FORECAST W OF A LINE FROM 41N166E TO 37N160E WINDS 20
TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST WITHIN 180 NM N OF A LINE FROM 36N160E TO
37N166E WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.

.SYNOPSIS AND FORECAST.

.A VOLCANIC ASH CLOUD HAS BEEN OBSERVED IN THE VICINITY OF
KATMAI VOLCANO LOCATED AT 58.17N 154.58W. IT IS RESUSPENDED ASH
FROM THE 1912 ERUPTION. THERE IS NO ERUPTION. ASH MAY BE
REACHING THE OCEAN SURFACE IN OR NEAR SHELIKOF STRAIT. MARINERS
ARE ENCOURAGED TO REPORT ANY OBSERVATON OF ASH ON THE OCEAN
SURFACE BY CALLING THE OCEAN PREDICTION CENTER AT 301-683-1520.

.FORECASTER SHAW. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1800 UTC SAT OCT 19.
24 HOUR FORECAST VALID 1800 UTC SUN OCT 20.
48 HOUR FORECAST VALID 1800 UTC MON OCT 21.

.WARNINGS.

...GALE WARNING...
.WITHIN 30 NM OF A LINE FROM 16N96W TO 14N95W...INCLUDING THE
GULF OF TEHUANTEPEC...N WINDS 30 TO 40 KT. SEAS 9 TO 14 FT.
ELSEWHERE WITHIN 60 NM OF A LINE FROM 16N95W TO 14N95W TO 11N96W
N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
.18 HOUR FORECAST WITHIN 30 NM OF A LINE FROM 16N95W TO
14N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO
35 KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 60 NM OF A LINE FROM
16N95W TO 14N95W TO 11N96W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO
12 FT. REMAINDER OF AREA FROM 08N TO 13N BETWEEN 93W AND 98W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED N AND SW SWELL.
.24 HOUR FORECAST WITHIN 45 NM OF A LINE FROM 16N95W TO 14N95W
TO 10N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20
TO 30 KT. SEAS 8 TO 11 FT. ELSEWHERE FROM 07N TO 13N BETWEEN 93W
AND 98W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED N AND SW
SWELL.
.48 HOUR FORECAST LOW PRESSURE NEAR 12N98.5W. N OF 15N BETWEEN
95W AND 97W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS
20 TO 25 KT. SEAS 8 TO 9 FT. FROM 12N TO 15N BETWEEN 95W AND
100W NE TO E WINDS WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.

.SYNOPSIS AND FORECAST.

.N OF 26N BETWEEN 120W AND 126W WINDS 20 KT OR LESS. SEAS 8 TO
10 FT IN NW SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.S OF A LINE FROM 03.4S105W TO 02S108W TO 02S120W WINDS 20 KT OR
LESS. SEAS 8 TO 10 FT IN SW SWELL.
.24 HOUR FORECAST S OF 02S BETWEEN 100W AND 115W WINDS 20 KT OR
LESS. SEAS 8 FT IN SW SWELL.
.36 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.

CONVECTION VALID AT 2100 UTC SAT OCT 19...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 10N86W TO 08N100W TO A 1012 MB
LOW PRESSURE CENTERED NEAR 14N116W TO 11N125W TO 12N140W.
CLUSTERS OF MODERATE TO STRONG CONVECTION ARE NOTED OVER PARTS
OF PANAMA AND THE GULF OF PANAMA, MAINLY N OF 06N BETWEEN 78W
AND 81W. SCATTERED MODERATE CONVECTION IS NOTED FROM 07N TO 11N
BETWEEN 100W AND 111W...AND FROM 09N TO 13N BETWEEN 115W AND
132W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.