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National Weather Service Marine Forecast FZAK52 PAFC

FZAK52 PAFC 172353
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
253 PM AKST Sun Jan 17 2021

Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The
Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out.

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ199-181315-
253 PM AKST Sun Jan 17 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 967 mb low at 215 nm northwest of Shemya moves to 175 nm
northwest of Shemya at 974 mb Tue afternoon. Its associated front
moves across the Bering through Tue afternoon. Along the frontal
axis, a 988 mb low develops south of the Aleutians Mon afternoon
then moves to 170 nm northwest of Port Heiden Tue afternoon. An
area of low pressure lingers over the central Bering between Mon
night and Tue afternoon.



PKZ150-181315-
South of the AK Peninsula Sitkinak to Castle Cape-
253 PM AKST Sun Jan 17 2021

GALE WARNING THROUGH MONDAY NIGHT


TONIGHT
SE wind 20 kt becoming NE 40 kt after midnight. Seas
14 ft. Snow and rain.

MON
NW wind 45 kt gusts to 60 kt through bays and passes. Seas 23
ft. Rain.

MON NIGHT
W wind 40 kt gusts to 50 kt through bays and passes
becoming SW 30 kt after midnight. Seas 20 ft.

TUE
S wind 40 kt. Seas 19 ft.

TUE NIGHT
W wind 45 kt. Seas 28 ft.

WED THROUGH THU
S wind 30 kt. Seas 20 ft.

FRI
W wind 30 kt. Seas 16 ft.



PKZ155-181315-
South of the AK Peninsula Castle Cape to Cape Sarichef-
253 PM AKST Sun Jan 17 2021

GALE WARNING THROUGH MONDAY


TONIGHT
NW wind 30 kt increasing to 40 kt after midnight gusts to
55 kt through bays and passes. Seas 11 ft. Freezing spray.

MON
NW wind 40 kt gusts to 50 kt through bays and passes. Seas 17 ft.
Freezing spray.

MON NIGHT
SW wind 30 kt. Seas 14 ft. Snow showers and rain showers.

TUE AND TUE NIGHT
W wind 45 kt. Seas 23 ft.

WED
S wind 35 kt. Seas 18 ft.

THU
S wind 20 kt. Seas 17 ft.

FRI
W wind 25 kt. Seas 14 ft.



PKZ160-181315-
Bristol Bay-
253 PM AKST Sun Jan 17 2021

GALE WARNING MONDAY AND MONDAY NIGHT

HEAVY FREEZING SPRAY WARNING MONDAY AND MONDAY NIGHT


TONIGHT
SW wind 15 kt becoming NW after midnight. Seas in ice
free waters 7 ft. Freezing spray.

MON
NW wind 35 kt. Seas in ice free waters 7 ft building to 13 ft
in the afternoon. Heavy Freezing spray near ice edge. Snow.

MON NIGHT
W wind 35 kt diminishing to 25 kt after midnight.
Seas in ice free waters 13 ft subsiding to 7 ft after midnight.
Heavy Freezing spray near ice edge.

TUE
E wind 30 kt. Seas in ice free waters 5 ft.

TUE NIGHT
W wind 30 kt. Seas in ice free waters 4 ft.

WED
SE wind 35 kt. Seas in ice free waters 7 ft.

THU
SE wind 25 kt. Seas in ice free waters 6 ft.

FRI
W wind 20 kt. Seas in ice free waters 8 ft.



PKZ165-181315-
Port Heiden to Cape Sarichef-
253 PM AKST Sun Jan 17 2021

GALE WARNING MONDAY

HEAVY FREEZING SPRAY WARNING MONDAY


TONIGHT
NW wind 30 kt. Seas 14 ft. Freezing spray. Snow.

MON
NW wind 35 kt. Seas 13 ft. Heavy Freezing spray.

MON NIGHT
E wind 25 kt. From Port Moller E, W wind 30 kt
becoming SE after midnight. Seas 10 ft subsiding to 6 ft after
midnight. Freezing spray. Snow showers.

TUE
S wind 35 kt. Seas 8 ft.

TUE NIGHT
W wind 35 kt. Seas 10 ft.

WED
SE wind 35 kt. Seas 10 ft.

THU
S wind 30 kt. Seas 10 ft.

FRI
W wind 20 kt. Seas 8 ft.



PKZ170-181315-
Cape Sarichef to Nikolski Bering Side-
253 PM AKST Sun Jan 17 2021

SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT


TONIGHT
NW wind 25 kt. Seas 13 ft. Freezing Spray.

MON
W wind 25 kt becoming SE in the afternoon. Seas 9 ft. Freezing
Spray.

MON NIGHT
SE wind 30 kt becoming W 20 kt late. Seas 7 ft. Snow
showers.

TUE
W wind 30 kt. Seas 10 ft.

TUE NIGHT
S wind 35 kt. Seas 10 ft.

WED
S wind 40 kt. Seas 16 ft.

THU THROUGH FRI
SW wind 30 kt. Seas 16 ft.



PKZ171-181315-
Unalaska Bay-
253 PM AKST Sun Jan 17 2021

SMALL CRAFT ADVISORY TONIGHT AND MONDAY NIGHT


TONIGHT
NW wind 25 kt. Seas 10 ft. Freezing spray.

MON
W wind 20 kt becoming S in the afternoon. Seas 7 ft
subsiding to 2 ft in the afternoon. Freezing spray.

MON NIGHT
SE wind 30 kt becoming S 15 kt after midnight. Seas
4 ft subsiding to 2 ft after midnight. Rain showers and snow
showers.

TUE
W wind 30 kt. Seas 5 ft.

TUE NIGHT
S wind 30 kt. Seas 5 ft.

WED
S wind 35 kt. Seas 5 ft.

THU
SW wind 20 kt. Seas 3 ft.

FRI
W wind 15 kt. Seas 3 ft.



PKZ172-181315-
Cape Sarichef to Nikolski Pacific Side-
253 PM AKST Sun Jan 17 2021

SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT


TONIGHT
NW wind 30 kt. Seas 10 ft.

MON
W wind 30 kt becoming S in the afternoon. Seas 9 ft.

MON NIGHT
SE wind 30 kt becoming SW after midnight. Seas 14 ft.
Snow showers.

TUE
W wind 30 kt. Seas 17 ft.

TUE NIGHT
S wind 40 kt. Seas 18 ft.

WED
S wind 35 kt. Seas 19 ft.

THU
S wind 25 kt. Seas 19 ft.

FRI
W wind 25 kt. Seas 18 ft.



PKZ173-181315-
Nikolski to Seguam Island Bering Side-
253 PM AKST Sun Jan 17 2021

SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT


TONIGHT
W wind 15 kt becoming S 25 kt after midnight. Seas 10 ft.

MON
S wind 30 kt. Seas 11 ft. Snow showers and rain showers.

MON NIGHT
SW wind 30 kt becoming W 20 kt after midnight. Seas 10 ft.

TUE
W wind 25 kt. Seas 11 ft.

TUE NIGHT
SE wind 45 kt. Seas 19 ft.

WED
S wind 45 kt. Seas 27 ft.

THU
SW wind 30 kt. Seas 17 ft.

FRI
S wind 35 kt. Seas 18 ft.



PKZ174-181315-
Nikolski to Seguam Island Pacific Side-
253 PM AKST Sun Jan 17 2021

SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT


TONIGHT
NW wind 20 kt becoming SW after midnight. Seas 10 ft.

MON
S wind 30 kt. Seas 13 ft. Snow showers and rain showers.

MON NIGHT
W wind 25 kt. Seas 13 ft.

TUE
W wind 25 kt. Seas 16 ft.

TUE NIGHT
SE wind 45 kt. Seas 24 ft.

WED
SW wind 40 kt. Seas 28 ft.

THU
W wind 25 kt. Seas 19 ft.

FRI
S wind 35 kt. Seas 23 ft.



PKZ175-181315-
Seguam Island to Adak Bering Side-
253 PM AKST Sun Jan 17 2021

GALE WARNING TONIGHT


TONIGHT
S wind 35 kt. Seas 12 ft. Snow showers.

MON
S wind 30 kt becoming W 20 kt in the afternoon. Seas 11 ft.

MON NIGHT
W wind 20 kt. Seas 9 ft.

TUE
SW wind 25 kt. Seas 10 ft.

TUE NIGHT
SE wind 45 kt. Seas 17 ft.

WED
SW wind 45 kt. Seas 22 ft.

THU
SW wind 30 kt. Seas 13 ft.

FRI
S wind 35 kt. Seas 17 ft.



PKZ176-181315-
Seguam Island to Adak Pacific Side-
253 PM AKST Sun Jan 17 2021

GALE WARNING TONIGHT


TONIGHT
S wind 35 kt. Seas 9 ft building to 14 ft after
midnight. Widespread snow showers.

MON
SW wind 30 kt becoming W 20 kt in the afternoon. Seas 14 ft.

MON NIGHT
W wind 30 kt. Seas 15 ft.

TUE
SW wind 30 kt. Seas 16 ft.

TUE NIGHT
SE wind 45 kt. Seas 26 ft.

WED
SW wind 40 kt. Seas 31 ft.

THU
W wind 25 kt. Seas 17 ft.

FRI
S wind 35 kt. Seas 24 ft.



PKZ177-181315-
Adak to Kiska-
253 PM AKST Sun Jan 17 2021

GALE WARNING TONIGHT


TONIGHT
S wind 40 kt becoming SW 25 kt after midnight. Seas
18 ft. Widespread snow showers.

MON
W wind 25 kt. Seas 16 ft.

MON NIGHT
W wind 30 kt. Seas 14 ft Bering side... 20 ft Pac side.
Snow showers.

TUE
SW wind 30 kt. Seas 18 ft.

TUE NIGHT
E wind 35 kt. Seas 19 ft.

WED
W wind 40 kt. Seas 21 ft.

THU
W wind 25 kt. Seas 13 ft.

FRI
SE wind 35 kt. Seas 25 ft.



PKZ178-181315-
Kiska to Attu-
253 PM AKST Sun Jan 17 2021

GALE WARNING MONDAY NIGHT


TONIGHT
SW wind 30 kt. Seas 20 ft. Freezing spray. Snow showers.

MON
SW wind 30 kt. Seas 21 ft. Freezing spray. Snow showers.

MON NIGHT
SW wind 35 kt. Seas 25 ft. Freezing spray. Snow
showers.

TUE
SW wind 35 kt. Seas 23 ft.

TUE NIGHT
SW wind 30 kt. Seas 17 ft.

WED
NW wind 30 kt. Seas 16 ft.

THU
SW wind 25 kt. Seas 14 ft.

FRI
SE wind 35 kt. Seas 22 ft.



PKZ179-181315-
Pribilof Islands Near Shore Waters-
253 PM AKST Sun Jan 17 2021

SMALL CRAFT ADVISORY TONIGHT AND MONDAY NIGHT


TONIGHT
NW wind 20 kt. Seas 9 ft. Freezing spray.

MON
Variable wind 10 kt becoming SE 20 kt in the afternoon.
Seas 5 ft.

MON NIGHT
SE wind 30 kt. Seas 11 ft. Freezing spray. Snow
showers.

TUE
S wind 30 kt. Seas 10 ft.

TUE NIGHT
S wind 25 kt. Seas 10 ft.

WED
SE wind 40 kt. Seas 25 ft.

THU
SW wind 40 kt. Seas 21 ft.

FRI
S wind 30 kt. Seas 17 ft.



PKZ180-181315-
Kuskokwim Delta and Etolin Strait-
253 PM AKST Sun Jan 17 2021

GALE WARNING MONDAY


TONIGHT
NW wind 25 kt. Freezing spray near ice edge.

MON
NW wind 35 kt. Freezing spray near ice edge.

MON NIGHT
NW wind 25 kt becoming NE 15 kt after midnight.
Freezing spray near ice edge.

TUE
NE wind 25 kt.

TUE NIGHT
NW wind 25 kt.

WED
SE wind 35 kt.

THU
S wind 30 kt.

FRI
SW wind 20 kt.



PKZ181-181315-
North and West of Nunivak Island-
253 PM AKST Sun Jan 17 2021

TONIGHT
NW wind 20 kt.

MON
NW wind 20 kt.

MON NIGHT
NW wind 15 kt becoming NE late.

TUE
NE wind 20 kt.

TUE NIGHT
N wind 15 kt.

WED
E wind 35 kt.

THU
S wind 35 kt.

FRI
S wind 25 kt.



PKZ185-181315-
Saint Matthew Island Waters-
253 PM AKST Sun Jan 17 2021

HEAVY FREEZING SPRAY WARNING THROUGH MONDAY NIGHT

SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT


TONIGHT
N wind 15 kt E of Saint Matthew Island...NE 25 kt W of
Saint Matthew Island. Seas 6 ft. Heavy freezing spray.

MON
Variable wind 10 kt E of Saint Matthew Island...NE 30 kt W
of Saint Matthew Island. Seas 10 ft. Heavy freezing spray.

MON NIGHT
E of Saint Matthew Island, NE wind 15 kt becoming E
25 kt after midnight. W of Saint Matthew Island, E wind 30 kt.
Seas 17 ft. Heavy freezing spray.

TUE
E wind 35 kt. Seas 16 ft.

TUE NIGHT
E wind 30 kt. Seas 15 ft.

WED
E wind 45 kt. Seas 23 ft.

THU
SW wind 30 kt. Seas 23 ft.

FRI
S wind 30 kt. Seas 17 ft.