Alert archive / Alaska / Storm Warnings in 2023

Storm Warning 12, NWS Anchorage, AK

January 20, 2023

NWS Anchorage, AK issued this storm warning at Jan 20, 2023, 3:26 PM AKST. It was in force for 37 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 20, 2023, 3:26 PM AKST (00:26 UTC)
Expired
Jan 22, 2023, 4:13 AM AKST
In force
37 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

368 
FZAK52 PAFC 210026
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
326 PM AKST Fri Jan 20 2023

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.

PKZ199-211330-
326 PM AKST Fri Jan 20 2023
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 975 mb low 120 nm southeast of Shemya will move 320 nm 
northwest of Shemya at 974 mb Saturday afternoon. The low then 
moves over Siberia Sunday morning. A second 970 mb North Pacific 
low moves 130 nm southwest of Dutch Harbor Sunday afternoon.

$$

PKZ150-211330-
South of the AK Peninsula Sitkinak to Castle Cape-
326 PM AKST Fri Jan 20 2023

...GALE WARNING TONIGHT AND SATURDAY NIGHT...

.TONIGHT...NW wind 40 kt. Seas 14 ft. Freezing spray.
.SAT...N wind 30 kt becoming NE 20 kt in the afternoon. 
Seas 9 ft. Freezing spray.
.SAT NIGHT...E wind 35 kt increasing to 45 kt after midnight. 
Seas 8 ft building to 16 ft after midnight. Snow and rain.
.SUN...SE wind 45 kt. Seas 18 ft.
.SUN NIGHT...S wind 30 kt. Seas 22 ft.
.MON...S wind 25 kt. Seas 21 ft.
.TUE...S wind 20 kt. Seas 16 ft.
.WED...SW wind 20 kt. Seas 10 ft.

$$

PKZ155-211330-
South of the AK Peninsula Castle Cape to Cape Sarichef-
326 PM AKST Fri Jan 20 2023

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...N wind 30 kt. Seas 9 ft. Freezing spray.
.SAT...NE wind 35 kt becoming E 45 kt in the afternoon. From 
the Shumagin Islands E, NE wind 25 kt becoming E 35 kt in the 
afternoon. Seas 7 ft building to 12 ft in the afternoon. Freezing 
spray.
.SAT NIGHT...E wind 50 kt except E 45 kt from the Shumagin Islands
E. Seas 23 ft. From the Shumagin Islands E, seas 12 ft building to
20 ft after midnight. Rain and snow.
.SUN...E wind 40 kt. Seas 19 ft.
.SUN NIGHT...S wind 30 kt. Seas 20 ft.
.MON...S wind 30 kt. Seas 18 ft.
.TUE...SW wind 20 kt. Seas 14 ft.
.WED...SW wind 25 kt. Seas 13 ft.

$$

PKZ160-211330-
Bristol Bay-
326 PM AKST Fri Jan 20 2023

...GALE WARNING SATURDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...NW wind 30 kt diminishing to 20 kt after midnight. 
Seas in ice free waters 8 ft. Heavy freezing spray.
.SAT...NE wind 20 kt increasing to 30 kt in the afternoon. 
Seas in ice free waters 5 ft. Heavy freezing spray.
.SAT NIGHT...NE wind 40 kt. Seas in ice free waters 7 ft. 
Heavy freezing spray.
.SUN...NE wind 40 kt. Seas in ice free waters 7 ft.
.SUN NIGHT...NE wind 35 kt. Seas in ice free waters 6 ft.
.MON...SE wind 25 kt. Seas in ice free waters 4 ft.
.TUE...SE wind 15 kt. Seas in ice free waters 2 ft.
.WED...S wind 15 kt. Seas in ice free waters 3 ft.

$$

PKZ165-211330-
Port Heiden to Cape Sarichef-
326 PM AKST Fri Jan 20 2023

...GALE WARNING SATURDAY AND SATURDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY...

.TONIGHT...NW wind 25 kt becoming NE after midnight. Seas 9 ft. 
Heavy freezing spray N of 56N.
.SAT...E wind 45 kt. From Port Moller E, NE wind 25 kt increasing
to 40 kt in the afternoon. Seas 12 ft. Heavy freezing spray in the morning.
.SAT NIGHT...NE wind 45 kt. Seas 16 ft. Freezing spray.
.SUN...E wind 45 kt. Seas 16 ft.
.SUN NIGHT...E wind 30 kt. Seas 13 ft.
.MON...SE wind 20 kt. Seas 8 ft.
.TUE...S wind 15 kt. Seas 4 ft.
.WED...S wind 25 kt. Seas 6 ft.

$$

PKZ170-211330-
Cape Sarichef to Nikolski Bering Side-
326 PM AKST Fri Jan 20 2023

...STORM WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...E wind 35 kt. Seas 9 ft. Freezing spray.
.SAT...E wind 50 kt. Seas 17 ft. Freezing spray in the morning.
.SAT NIGHT...E wind 50 kt. Seas 21 ft. Snow and rain.
.SUN...NE wind 40 kt. Seas 18 ft.
.SUN NIGHT...NE wind 20 kt. Seas 14 ft.
.MON...S wind 20 kt. Seas 9 ft.
.TUE...SW wind 20 kt. Seas 6 ft.
.WED...S wind 25 kt. Seas 7 ft.

$$

PKZ171-211330-
Unalaska Bay-
326 PM AKST Fri Jan 20 2023

...STORM WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...E wind 15 kt. Seas 2 ft.
.SAT...E wind 25 kt increasing to 50 kt in the afternoon. Gusts to 
65 kt in the afternoon. Seas 3 ft building to 8 ft in the afternoon.
.SAT NIGHT...E wind 50 kt. Gusts to 65 kt in the evening. Seas 8 ft.
Snow and rain.
.SUN...NE wind 30 kt. Seas 5 ft.
.SUN NIGHT...E wind 10 kt. Seas 3 ft.
.MON...S wind 10 kt. Seas 2 ft.
.TUE...SW wind 15 kt. Seas 2 ft.
.WED...S wind 20 kt. Seas 2 ft.

$$

PKZ172-211330-
Cape Sarichef to Nikolski Pacific Side-
326 PM AKST Fri Jan 20 2023

...STORM WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...E wind 30 kt increasing to 40 kt after midnight. 
Seas 10 ft.
.SAT...E wind 55 kt. Gusts to 70 kt in the afternoon. Seas 15 ft 
building to 22 ft in the afternoon.
.SAT NIGHT...E wind 55 kt diminishing to 45 kt after midnight. 
Gusts to 70 kt before midnight. Seas 28 ft. Rain and snow.
.SUN...NE wind 35 kt. Seas 21 ft.
.SUN NIGHT...SE wind 30 kt. Seas 15 ft.
.MON...S wind 30 kt. Seas 13 ft.
.TUE...SW wind 20 kt. Seas 15 ft.
.WED...S wind 25 kt. Seas 12 ft.

$$

PKZ173-211330-
Nikolski to Seguam Island Bering Side-
326 PM AKST Fri Jan 20 2023

...STORM WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...E wind 40 kt. Seas 14 ft.
.SAT...E wind 50 kt. Seas 17 ft building to 23 ft in the afternoon.
.SAT NIGHT...E wind 50 kt. Seas 26 ft. Rain and snow.
.SUN...NE wind 30 kt. Seas 22 ft.
.SUN NIGHT...N wind 20 kt. Seas 16 ft.
.MON THROUGH TUE...SW wind 20 kt. Seas 11 ft.
.WED...S wind 25 kt. Seas 9 ft.

$$

PKZ174-211330-
Nikolski to Seguam Island Pacific Side-
326 PM AKST Fri Jan 20 2023

...STORM WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...E wind 35 kt increasing to 45 kt after midnight. 
Seas 12 ft building to 17 ft after midnight.
.SAT...E wind 55 kt. Seas 23 ft building to 30 ft in the afternoon. 
Rain.
.SAT NIGHT...E wind 55 kt diminishing to 45 kt after midnight. 
Seas 30 ft. Rain.
.SUN...NE wind 30 kt. Seas 22 ft.
.SUN NIGHT...N wind 15 kt. Seas 16 ft.
.MON...W wind 25 kt. Seas 11 ft.
.TUE...SW wind 25 kt. Seas 17 ft.
.WED...S wind 25 kt. Seas 12 ft.

$$

PKZ175-211330-
Seguam Island to Adak Bering Side-
326 PM AKST Fri Jan 20 2023

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...SE wind 45 kt. Seas 15 ft.
.SAT...E wind 45 kt. Seas 21 ft.
.SAT NIGHT...NE wind 45 kt. Seas 25 ft. Rain and snow.
.SUN...NE wind 30 kt. Seas 22 ft.
.SUN NIGHT...N wind 20 kt. Seas 16 ft.
.MON...W wind 30 kt. Seas 13 ft.
.TUE...SW wind 30 kt. Seas 12 ft.
.WED...SE wind 30 kt. Seas 9 ft.

$$

PKZ176-211330-
Seguam Island to Adak Pacific Side-
326 PM AKST Fri Jan 20 2023

...STORM WARNING SATURDAY...

.TONIGHT...E wind 45 kt. Seas 20 ft.
.SAT...E wind 50 kt. Seas 29 ft. Rain and snow.
.SAT NIGHT...NE wind 45 kt diminishing to 35 kt after midnight.
Seas 29 ft. Rain.
.SUN...NE wind 25 kt. Seas 22 ft.
.SUN NIGHT...N wind 20 kt. Seas 15 ft.
.MON THROUGH TUE...SW wind 30 kt. Seas 17 ft.
.WED...S wind 30 kt. Seas 9 ft.

$$

PKZ177-211330-
Adak to Kiska-
326 PM AKST Fri Jan 20 2023

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...S wind 45 kt diminishing to 35 kt after midnight. 
Seas 22 ft. Rain.
.SAT...NE wind 35 kt. Seas 18 ft. Snow and rain.
.SAT NIGHT...NE wind 30 kt. Seas 21 ft. Rain and snow.
.SUN AND SUN NIGHT...NW wind 30 kt. Seas 18 ft.
.MON...W wind 30 kt. Seas 16 ft.
.TUE...SW wind 30 kt. Seas 15 ft.
.WED...SE wind 35 kt. Seas 10 ft.

$$

PKZ178-211330-
Kiska to Attu-
326 PM AKST Fri Jan 20 2023

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...NW wind 45 kt. Seas 18 ft.
.SAT...W wind 40 kt becoming NW 30 kt in the afternoon. 
Seas 18 ft.
.SAT NIGHT...NW wind 40 kt. Seas 19 ft. Snow.
.SUN...NW wind 40 kt. Seas 20 ft.
.SUN NIGHT...NW wind 35 kt. Seas 20 ft.
.MON...W wind 30 kt. Seas 17 ft.
.TUE...S wind 25 kt. Seas 12 ft.
.WED...SE wind 35 kt. Seas 13 ft.

$$

PKZ179-211330-
Pribilof Islands Near Shore Waters-
326 PM AKST Fri Jan 20 2023

...STORM WARNING SATURDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...E wind 30 kt. Seas 8 ft. Heavy freezing spray.
.SAT...E wind 45 kt. Seas 11 ft building to 16 ft in the
afternoon. Heavy freezing spray.
.SAT NIGHT...E wind 50 kt. Seas 20 ft. Heavy freezing spray 
N of Saint George Island.
.SUN...NE wind 40 kt. Seas 19 ft.
.SUN NIGHT...NE wind 35 kt. Seas 17 ft.
.MON...NE wind 30 kt. Seas 13 ft.
.TUE...N wind 15 kt. Seas 6 ft.
.WED...E wind 25 kt. Seas 8 ft.

$$

PKZ180-211330-
Kuskokwim Delta and Etolin Strait-
326 PM AKST Fri Jan 20 2023

...GALE WARNING SATURDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...N wind 30 kt. Seas in ice free waters 5 ft. Extreme freezing spray 
at a rate of 4 cm per hour or greater may rapidly accumulate on vessels.
.SAT...NE wind 30 kt. Seas in ice free waters 5 ft. Extreme freezing spray 
at a rate of 4 cm per hour or greater may rapidly accumulate on vessels.
.SAT NIGHT...NE wind 40 kt. Seas in ice free waters 9 ft. Extreme freezing spray 
at a rate of 4 cm per hour or greater may rapidly accumulate on vessels.
.SUN...NE wind 40 kt. Seas in ice free waters 9 ft.
.SUN NIGHT...NE wind 35 kt. Seas in ice free waters 8 ft.
.MON...NE wind 30 kt. Seas in ice free waters 6 ft.
.TUE...NE wind 20 kt. Seas in ice free waters 3 ft.
.WED...E wind 20 kt. Seas in ice free waters 5 ft.

$$

PKZ181-211330-
North and West of Nunivak Island-
326 PM AKST Fri Jan 20 2023

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...NE wind 15 kt.
.SAT...NE wind 25 kt.
.SAT NIGHT...NE wind 35 kt.
.SUN AND SUN NIGHT...NE wind 40 kt.
.MON...NE wind 35 kt.
.TUE...N wind 25 kt.
.WED...NE wind 20 kt.

$$

PKZ185-211330-
Saint Matthew Island Waters-
326 PM AKST Fri Jan 20 2023

...GALE WARNING THROUGH SATURDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...E of Saint Matthew Island, NE wind 20 kt. W of Saint
Matthew Island, E wind 30 kt increasing to 45 kt after midnight.
Seas in ice free waters 6 ft building to 11 ft after midnight. Heavy
freezing spray.
.SAT...NE wind 30 kt E of Saint Matthew Island...E 45 kt W of
Saint Matthew Island. Seas in ice free waters 19 ft. Extreme 
freezing spray near the ice edge at a rate of 4 cm per hour or 
greater may rapidly accumulate on vessels.
.SAT NIGHT...NE wind 40 kt E of Saint Matthew Island...E 45 kt W
of Saint Matthew Island. Seas in ice free waters 18 ft. Extreme 
freezing spray near the ice edge at a rate of 4 cm per hour or 
greater may rapidly accumulate on vessels.
.SUN AND SUN NIGHT...NE wind 45 kt. Seas in ice free waters 19 ft.
.MON...NE wind 40 kt. Seas in ice free waters 16 ft.
.TUE...NE wind 35 kt. Seas in ice free waters 13 ft.
.WED...NE wind 30 kt. Seas in ice free waters 10 ft.

$$
4 follow-up statements
749 
FZAK52 PAFC 211239
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
339 AM AKST Sat Jan 21 2023

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.

PKZ199-220200-
339 AM AKST Sat Jan 21 2023
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 967 mb low 260 nm northwest of Shemya this morning will move 
over Siberia Sunday morning. A 959 mb low 610 nm southwest of 
Dutch Harbor Saturday morning will move 260 nm southeast of Dutch
Harbor at 968 mb Sunday morning. This low will move over Bristol 
Bay at 989 mb Monday morning. A second 978 mb low will move 420 nm
west of Dutch Harbor Monday morning.


$$

PKZ150-220200-
South of the AK Peninsula Sitkinak to Castle Cape-
339 AM AKST Sat Jan 21 2023

...GALE WARNING TONIGHT AND SUNDAY...

.TODAY...N wind 30 kt becoming NE 20 kt in the afternoon.
Seas 9 ft. Freezing spray.
.TONIGHT...E wind 35 kt increasing to 45 kt after midnight.
Seas 8 ft building to 17 ft after midnight.
Snow showers and rain showers.
.SUN...E wind 40 kt becoming SE 30 kt in the afternoon.
Seas 19 ft. Rain showers.
.SUN NIGHT...S wind 30 kt. Seas 22 ft.
.MON...S wind 25 kt. Seas 21 ft.
.TUE...S wind 20 kt. Seas 14 ft.
.WED...SW wind 20 kt. Seas 10 ft.

$$

PKZ155-220200-
South of the AK Peninsula Castle Cape to Cape Sarichef-
339 AM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...

.TODAY...NE wind 35 kt becoming E 45 kt in the afternoon. From the
Shumagin Islands E, NE wind 25 kt becoming E 35 kt in the
afternoon. Seas 7 ft building to 12 ft in the afternoon.
.TONIGHT...E wind 50 kt except E 45 kt from the Shumagin Islands
E. Seas 23 ft. From the Shumagin Islands E, seas 12 ft building to 
19 ft after midnight. Snow and rain showers.
.SUN...E wind 40 kt diminishing to 25 kt in the afternoon.
Seas 19 ft. Rain showers and snow showers.
.SUN NIGHT...S wind 30 kt. Seas 20 ft.
.MON...S wind 30 kt. Seas 18 ft.
.TUE...S wind 15 kt. Seas 13 ft.
.WED...SW wind 20 kt. Seas 13 ft.

$$

PKZ160-220200-
Bristol Bay-
339 AM AKST Sat Jan 21 2023

...GALE WARNING TONIGHT AND SUNDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...NE wind 20 kt increasing to 30 kt in the afternoon. Seas
in ice free waters 5 ft. Heavy freezing spray.
.TONIGHT...NE wind 40 kt. Seas in ice free waters 7 ft. Heavy
freezing spray.
.SUN...NE wind 40 kt. Seas in ice free waters 7 ft. Heavy freezing
spray N of 58N.
.SUN NIGHT...NE wind 35 kt. Seas in ice free waters 6 ft.
.MON...E wind 25 kt. Seas in ice free waters 4 ft.
.TUE...SE wind 15 kt. Seas in ice free waters 2 ft.
.WED...W wind 15 kt. Seas in ice free waters 3 ft.

$$

PKZ165-220200-
Port Heiden to Cape Sarichef-
339 AM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY...
...HEAVY FREEZING SPRAY WARNING TODAY...

.TODAY...E wind 45 kt. From Port Moller E, NE wind 25 kt
increasing to 40 kt in the afternoon. Seas 12 ft. Heavy freezing 
spray from Port Moller E.
.TONIGHT...NE wind 45 kt. Seas 16 ft. Freezing spray. Snow.
.SUN...NE wind 40 kt. Seas 16 ft. Snow showers and rain.
.SUN NIGHT...E wind 30 kt. Seas 13 ft.
.MON...SE wind 20 kt. Seas 8 ft.
.TUE...SE wind 15 kt. Seas 3 ft.
.WED...W wind 25 kt. Seas 6 ft.

$$

PKZ170-220200-
Cape Sarichef to Nikolski Bering Side-
339 AM AKST Sat Jan 21 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...E wind 50 kt. Seas 17 ft.
.TONIGHT...E wind 50 kt. Seas 21 ft. Snow and rain.
.SUN...NE wind 35 kt. Seas 17 ft. Rain and snow.
.SUN NIGHT...NE wind 20 kt. Seas 14 ft.
.MON...SE wind 15 kt. Seas 9 ft.
.TUE...NE wind 20 kt. Seas 6 ft.
.WED...SW wind 35 kt. Seas 7 ft.

$$

PKZ171-220200-
Unalaska Bay-
339 AM AKST Sat Jan 21 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...E wind 25 kt increasing to 50 kt in the afternoon. Gusts to
65 kt in the afternoon. Seas 3 ft building to 8 ft in the afternoon.
.TONIGHT...E wind 50 kt. Gusts to 65 kt in the evening. Seas 8 ft. 
Snow and rain.
.SUN...NE wind 25 kt diminishing to 10 kt in the afternoon.
Seas 4 ft. Rain showers.
.SUN NIGHT...E wind 10 kt. Seas 3 ft.
.MON...SE wind 10 kt. Seas 2 ft.
.TUE...E wind 15 kt. Seas 3 ft.
.WED...W wind 20 kt. Seas 3 ft.

$$

PKZ172-220200-
Cape Sarichef to Nikolski Pacific Side-
339 AM AKST Sat Jan 21 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...E wind 55 kt. Gusts to 70 kt in the afternoon. Seas 15 ft 
building to 22 ft in the afternoon. Rain and snow.
.TONIGHT...E wind 55 kt diminishing to 45 kt after midnight. Gusts to
70 kt before midnight. Seas 28 ft. Rain and snow.
.SUN...NE wind 35 kt diminishing to 20 kt in the afternoon.
Seas 20 ft.
.SUN NIGHT...SE wind 30 kt. Seas 15 ft.
.MON...S wind 30 kt. Seas 13 ft.
.TUE...SW wind 25 kt. Seas 15 ft.
.WED...SW wind 35 kt. Seas 12 ft.

$$

PKZ173-220200-
Nikolski to Seguam Island Bering Side-
339 AM AKST Sat Jan 21 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...E wind 50 kt. Seas 17 ft building to 23 ft in the
afternoon. Rain.
.TONIGHT...E wind 50 kt. Seas 26 ft. Rain with snow.
.SUN...NE wind 30 kt. Seas 22 ft.
.SUN NIGHT...N wind 20 kt. Seas 16 ft.
.MON...W wind 15 kt. Seas 12 ft.
.TUE...NW wind 25 kt. Seas 9 ft.
.WED...S wind 40 kt. Seas 9 ft.

$$

PKZ174-220200-
Nikolski to Seguam Island Pacific Side-
339 AM AKST Sat Jan 21 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...E wind 55 kt. Seas 23 ft building to 30 ft in the
afternoon. Rain and snow.
.TONIGHT...E wind 55 kt diminishing to 45 kt after midnight.
Seas 30 ft. Rain and snow.
.SUN...NE wind 30 kt diminishing to 20 kt in the afternoon.
Seas 22 ft. Rain.
.SUN NIGHT...N wind 15 kt. Seas 16 ft.
.MON...W wind 20 kt. Seas 11 ft.
.TUE...W wind 30 kt. Seas 17 ft.
.WED...S wind 40 kt. Seas 12 ft.

$$

PKZ175-220200-
Seguam Island to Adak Bering Side-
339 AM AKST Sat Jan 21 2023

...GALE WARNING THROUGH TONIGHT...

.TODAY...E wind 45 kt. Seas 21 ft. Rain and snow.
.TONIGHT...NE wind 45 kt. Seas 25 ft. Rain and snow.
.SUN...NE wind 30 kt. Seas 22 ft. Rain.
.SUN NIGHT...N wind 20 kt. Seas 16 ft.
.MON THROUGH TUE...W wind 25 kt. Seas 12 ft.
.WED...S wind 35 kt. Seas 9 ft.

$$

PKZ176-220200-
Seguam Island to Adak Pacific Side-
339 AM AKST Sat Jan 21 2023

...STORM WARNING TODAY...

.TODAY...E wind 50 kt. Seas 29 ft. Rain and snow.
.TONIGHT...NE wind 45 kt diminishing to 35 kt after midnight.
Seas 29 ft. Rain showers and snow.
.SUN...NE wind 25 kt. Seas 21 ft. Rain.
.SUN NIGHT...N wind 20 kt. Seas 15 ft.
.MON THROUGH TUE...W wind 30 kt. Seas 16 ft.
.WED...S wind 40 kt. Seas 9 ft.

$$

PKZ177-220200-
Adak to Kiska-
339 AM AKST Sat Jan 21 2023

...GALE WARNING TODAY...

.TODAY...NE wind 35 kt. Seas 18 ft. Snow and rain.
.TONIGHT...NE wind 30 kt. Seas 21 ft. Rain and snow.
.SUN...N wind 30 kt. Seas 19 ft. Rain and snow.
.SUN NIGHT...NW wind 30 kt. Seas 17 ft.
.MON THROUGH TUE...W wind 35 kt. Seas 16 ft.
.WED...SE wind 40 kt. Seas 10 ft.

$$

PKZ178-220200-
Kiska to Attu-
339 AM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY...

.TODAY...W wind 40 kt becoming NW 30 kt in the afternoon.
Seas 18 ft.
.TONIGHT...NW wind 35 kt. Seas 18 ft. Snow.
.SUN...NW wind 40 kt. Seas 21 ft. Snow showers.
.SUN NIGHT...NW wind 35 kt. Seas 20 ft.
.MON...W wind 30 kt. Seas 17 ft.
.TUE...SW wind 35 kt. Seas 16 ft.
.WED...SE wind 45 kt. Seas 13 ft.

$$

PKZ179-220200-
Pribilof Islands Near Shore Waters-
339 AM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING SUNDAY...

.TODAY...E wind 45 kt. Seas 11 ft building to 16 ft in the
afternoon. Freezing spray.
.TONIGHT...E wind 50 kt. Seas 20 ft. Freezing spray.
.SUN...NE wind 40 kt. Seas 19 ft. Heavy freezing spray N of 57N.
.SUN NIGHT...NE wind 35 kt. Seas 17 ft.
.MON...NE wind 30 kt. Seas 13 ft.
.TUE...N wind 25 kt. Seas 8 ft.
.WED...NE wind 30 kt. Seas 8 ft.

$$

PKZ180-220200-
Kuskokwim Delta and Etolin Strait-
339 AM AKST Sat Jan 21 2023

...GALE WARNING TONIGHT AND SUNDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...NE wind 30 kt. Seas in ice free waters 5 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels.
.TONIGHT AND SUN...NE wind 40 kt. Seas in ice free waters 9 ft. 
Extreme freezing spray at a rate of 4 cm per hour or greater may 
rapidly accumulate on vessels.
.SUN NIGHT...NE wind 35 kt. Seas in ice free waters 8 ft.
.MON...NE wind 30 kt. Seas in ice free waters 6 ft.
.TUE...N wind 25 kt. Seas in ice free waters 2 ft.
.WED...NW wind 20 kt. Seas in ice free waters 5 ft.

$$

PKZ181-220200-
North and West of Nunivak Island-
339 AM AKST Sat Jan 21 2023

...GALE WARNING TONIGHT AND SUNDAY...

.TODAY...NE wind 25 kt.
.TONIGHT...NE wind 35 kt.
.SUN AND SUN NIGHT...NE wind 40 kt.
.MON...NE wind 35 kt.
.TUE...N wind 30 kt.
.WED...NW wind 20 kt.

$$

PKZ185-220200-
Saint Matthew Island Waters-
339 AM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...NE wind 30 kt E of Saint Matthew Island...E 45 kt W of
Saint Matthew Island. Seas in ice free waters 19 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels.
.TONIGHT...NE wind 40 kt E of Saint Matthew Island...E 45 kt W of
Saint Matthew Island. Seas in ice free waters 19 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels.spray.
.SUN...NE wind 45 kt. Seas in ice free waters 20 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels.
.SUN NIGHT...NE wind 45 kt. Seas in ice free waters 18 ft.
.MON...NE wind 40 kt. Seas in ice free waters 17 ft.
.TUE...N wind 35 kt. Seas in ice free waters 15 ft.
.WED...NE wind 40 kt. Seas in ice free waters 10 ft.

$$
887 
FZAK52 PAFC 211934
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage AK
1034 AM AKST Sat Jan 21 2023

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.

PKZ199-220415-
1034 AM AKST Sat Jan 21 2023
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 967 mb low 260 nm northwest of Shemya this morning will move 
over Siberia Sunday morning. A 959 mb low 610 nm southwest of 
Dutch Harbor Saturday morning will move 260 nm southeast of Dutch
Harbor at 968 mb Sunday morning. This low will move over Bristol 
Bay at 989 mb Monday morning. A second 978 mb low will move 420 nm
west of Dutch Harbor Monday morning.


$$

PKZ150-220415-
South of the AK Peninsula Sitkinak to Castle Cape-
1034 AM AKST Sat Jan 21 2023

...GALE WARNING TONIGHT AND SUNDAY...

.TODAY...N wind 30 kt becoming NE 20 kt in the afternoon. Seas
9 ft. Freezing spray. 
.TONIGHT...E wind 35 kt increasing to 45 kt after midnight. Seas
8 ft building to 17 ft after midnight. Snow showers and rain
showers. 
.SUN...E wind 40 kt becoming SE 30 kt in the afternoon. Seas
19 ft. Rain showers. 
.SUN NIGHT...S wind 30 kt. Seas 22 ft. 
.MON...S wind 25 kt. Seas 21 ft. 
.TUE...S wind 20 kt. Seas 14 ft. 
.WED...SW wind 20 kt. Seas 10 ft.

$$

PKZ155-220415-
South of the AK Peninsula Castle Cape to Cape Sarichef-
1034 AM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...

.TODAY...NE wind 35 kt becoming E 45 kt in the afternoon. From
the Shumagin Islands E, NE wind 25 kt becoming E 35 kt in the
afternoon. Seas 7 ft building to 12 ft in the afternoon. 
.TONIGHT...E wind 50 kt except E 45 kt from the Shumagin Islands
E. Seas 23 ft. From the Shumagin Islands E, seas 12 ft building
to  19 ft after midnight. Snow and rain showers. 
.SUN...E wind 40 kt diminishing to 25 kt in the afternoon. Seas
19 ft. Rain showers and snow showers. 
.SUN NIGHT...S wind 30 kt. Seas 20 ft. 
.MON...S wind 30 kt. Seas 18 ft. 
.TUE...S wind 15 kt. Seas 13 ft. 
.WED...SW wind 20 kt. Seas 13 ft.

$$

PKZ160-220415-
Bristol Bay-
1034 AM AKST Sat Jan 21 2023

...GALE WARNING TONIGHT AND SUNDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...NE wind 20 kt increasing to 30 kt in the afternoon. Seas
in ice free waters 5 ft. Heavy freezing spray. 
.TONIGHT...NE wind 40 kt. Seas in ice free waters 7 ft. Heavy
freezing spray. 
.SUN...NE wind 40 kt. Seas in ice free waters 7 ft. Heavy
freezing spray N of 58N. 
.SUN NIGHT...NE wind 35 kt. Seas in ice free waters 6 ft. 
.MON...E wind 25 kt. Seas in ice free waters 4 ft. 
.TUE...SE wind 15 kt. Seas in ice free waters 2 ft. 
.WED...W wind 15 kt. Seas in ice free waters 3 ft.

$$

PKZ165-220415-
Port Heiden to Cape Sarichef-
1034 AM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY...
...HEAVY FREEZING SPRAY WARNING TODAY...

.TODAY...E wind 45 kt. From Port Moller E, NE wind 25 kt
increasing to 40 kt in the afternoon. Seas 12 ft. Heavy freezing 
spray from Port Moller E. 
.TONIGHT...NE wind 45 kt. Seas 16 ft. Freezing spray. Snow. 
.SUN...NE wind 40 kt. Seas 16 ft. Snow showers and rain. 
.SUN NIGHT...E wind 30 kt. Seas 13 ft. 
.MON...SE wind 20 kt. Seas 8 ft. 
.TUE...SE wind 15 kt. Seas 3 ft. 
.WED...W wind 25 kt. Seas 6 ft.

$$

PKZ170-220415-
Cape Sarichef to Nikolski Bering Side-
1034 AM AKST Sat Jan 21 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...E wind 50 kt. Seas 17 ft. 
.TONIGHT...E wind 50 kt. Seas 21 ft. Snow and rain. 
.SUN...NE wind 35 kt. Seas 17 ft. Rain and snow. 
.SUN NIGHT...NE wind 20 kt. Seas 14 ft. 
.MON...SE wind 15 kt. Seas 9 ft. 
.TUE...NE wind 20 kt. Seas 6 ft. 
.WED...SW wind 35 kt. Seas 7 ft.

$$

PKZ171-220415-
Unalaska Bay-
1034 AM AKST Sat Jan 21 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...E wind 25 kt increasing to 50 kt in the afternoon. Gusts
to 65 kt in the afternoon. Seas 3 ft building to 8 ft in the
afternoon. 
.TONIGHT...E wind 50 kt. Gusts to 65 kt in the evening. Seas
8 ft.  Snow and rain. 
.SUN...NE wind 25 kt diminishing to 10 kt in the afternoon. Seas
4 ft. Rain showers. 
.SUN NIGHT...E wind 10 kt. Seas 3 ft. 
.MON...SE wind 10 kt. Seas 2 ft. 
.TUE...E wind 15 kt. Seas 3 ft. 
.WED...W wind 20 kt. Seas 3 ft.

$$

PKZ172-220415-
Cape Sarichef to Nikolski Pacific Side-
1034 AM AKST Sat Jan 21 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...E wind 55 kt. Gusts to 70 kt in the afternoon. Seas
15 ft  building to 22 ft in the afternoon. Rain and snow. 
.TONIGHT...E wind 55 kt diminishing to 45 kt after midnight.
Gusts to 70 kt before midnight. Seas 28 ft. Rain and snow. 
.SUN...NE wind 35 kt diminishing to 20 kt in the afternoon. Seas
20 ft. 
.SUN NIGHT...SE wind 30 kt. Seas 15 ft. 
.MON...S wind 30 kt. Seas 13 ft. 
.TUE...SW wind 25 kt. Seas 15 ft. 
.WED...SW wind 35 kt. Seas 12 ft.

$$

PKZ173-220415-
Nikolski to Seguam Island Bering Side-
1034 AM AKST Sat Jan 21 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...E wind 50 kt. Seas 17 ft building to 23 ft in the
afternoon. Rain. 
.TONIGHT...E wind 50 kt. Seas 26 ft. Rain with snow. 
.SUN...NE wind 30 kt. Seas 22 ft. 
.SUN NIGHT...N wind 20 kt. Seas 16 ft. 
.MON...W wind 15 kt. Seas 12 ft. 
.TUE...NW wind 25 kt. Seas 9 ft. 
.WED...S wind 40 kt. Seas 9 ft.

$$

PKZ174-220415-
Nikolski to Seguam Island Pacific Side-
1034 AM AKST Sat Jan 21 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...E wind 55 kt. Seas 30 ft. Rain and snow. 
.TONIGHT...E wind 55 kt diminishing to 45 kt after midnight. Seas
30 ft. Rain and snow. 
.SUN...NE wind 30 kt diminishing to 20 kt in the afternoon. Seas
22 ft. Rain. 
.SUN NIGHT...N wind 15 kt. Seas 16 ft. 
.MON...W wind 20 kt. Seas 11 ft. 
.TUE...W wind 30 kt. Seas 17 ft. 
.WED...S wind 40 kt. Seas 12 ft.

$$

PKZ175-220415-
Seguam Island to Adak Bering Side-
1034 AM AKST Sat Jan 21 2023

...GALE WARNING THROUGH TONIGHT...

.TODAY...E wind 45 kt. Seas 21 ft. Rain and snow. 
.TONIGHT...NE wind 45 kt. Seas 25 ft. Rain and snow. 
.SUN...NE wind 30 kt. Seas 22 ft. Rain. 
.SUN NIGHT...N wind 20 kt. Seas 16 ft. 
.MON THROUGH TUE...W wind 25 kt. Seas 12 ft. 
.WED...S wind 35 kt. Seas 9 ft.

$$

PKZ176-220415-
Seguam Island to Adak Pacific Side-
1034 AM AKST Sat Jan 21 2023

...STORM WARNING TODAY...

.TODAY...E wind 50 kt. Seas 29 ft. Rain and snow. 
.TONIGHT...NE wind 45 kt diminishing to 35 kt after midnight.
Seas 29 ft. Rain showers and snow. 
.SUN...NE wind 25 kt. Seas 21 ft. Rain. 
.SUN NIGHT...N wind 20 kt. Seas 15 ft. 
.MON THROUGH TUE...W wind 30 kt. Seas 16 ft. 
.WED...S wind 40 kt. Seas 9 ft.

$$

PKZ177-220415-
Adak to Kiska-
1034 AM AKST Sat Jan 21 2023

...GALE WARNING TODAY...

.TODAY...NE wind 35 kt. Seas 18 ft. Snow and rain. 
.TONIGHT...NE wind 30 kt. Seas 21 ft. Rain and snow. 
.SUN...N wind 30 kt. Seas 19 ft. Rain and snow. 
.SUN NIGHT...NW wind 30 kt. Seas 17 ft. 
.MON THROUGH TUE...W wind 35 kt. Seas 16 ft. 
.WED...SE wind 40 kt. Seas 10 ft.

$$

PKZ178-220415-
Kiska to Attu-
1034 AM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY...

.TODAY...W wind 40 kt becoming NW 30 kt in the afternoon. Seas
18 ft. 
.TONIGHT...NW wind 35 kt. Seas 18 ft. Snow. 
.SUN...NW wind 40 kt. Seas 21 ft. Snow showers. 
.SUN NIGHT...NW wind 35 kt. Seas 20 ft. 
.MON...W wind 30 kt. Seas 17 ft. 
.TUE...SW wind 35 kt. Seas 16 ft. 
.WED...SE wind 45 kt. Seas 13 ft.

$$

PKZ179-220415-
Pribilof Islands Near Shore Waters-
1034 AM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING SUNDAY...

.TODAY...E wind 45 kt. Seas 11 ft building to 16 ft in the
afternoon. Freezing spray. 
.TONIGHT...E wind 50 kt. Seas 20 ft. Freezing spray. 
.SUN...NE wind 40 kt. Seas 19 ft. Heavy freezing spray N of 57N. 
.SUN NIGHT...NE wind 35 kt. Seas 17 ft. 
.MON...NE wind 30 kt. Seas 13 ft. 
.TUE...N wind 25 kt. Seas 8 ft. 
.WED...NE wind 30 kt. Seas 8 ft.

$$

PKZ180-220415-
Kuskokwim Delta and Etolin Strait-
1034 AM AKST Sat Jan 21 2023

...GALE WARNING TONIGHT AND SUNDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...NE wind 30 kt. Seas in ice free waters 5 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels. 
.TONIGHT AND SUN...NE wind 40 kt. Seas in ice free waters 9 ft. 
Extreme freezing spray at a rate of 4 cm per hour or greater may 
rapidly accumulate on vessels. 
.SUN NIGHT...NE wind 35 kt. Seas in ice free waters 8 ft. 
.MON...NE wind 30 kt. Seas in ice free waters 6 ft. 
.TUE...N wind 25 kt. Seas in ice free waters 2 ft. 
.WED...NW wind 20 kt. Seas in ice free waters 5 ft.

$$

PKZ181-220415-
North and West of Nunivak Island-
1034 AM AKST Sat Jan 21 2023

...GALE WARNING TONIGHT AND SUNDAY...

.TODAY...NE wind 25 kt. 
.TONIGHT...NE wind 35 kt. 
.SUN AND SUN NIGHT...NE wind 40 kt. 
.MON...NE wind 35 kt. 
.TUE...N wind 30 kt. 
.WED...NW wind 20 kt.

$$

PKZ185-220415-
Saint Matthew Island Waters-
1034 AM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...NE wind 30 kt E of Saint Matthew Island...E 45 kt W of
Saint Matthew Island. Seas in ice free waters 19 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels. 
.TONIGHT...NE wind 40 kt E of Saint Matthew Island...E 45 kt W of
Saint Matthew Island. Seas in ice free waters 19 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels.spray. 
.SUN...NE wind 45 kt. Seas in ice free waters 20 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels. 
.SUN NIGHT...NE wind 45 kt. Seas in ice free waters 18 ft. 
.MON...NE wind 40 kt. Seas in ice free waters 17 ft. 
.TUE...N wind 35 kt. Seas in ice free waters 15 ft. 
.WED...NE wind 40 kt. Seas in ice free waters 10 ft.

$$
036 
FZAK52 PAFC 220025
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
325 PM AKST Sat Jan 21 2023

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.

PKZ199-221330-
325 PM AKST Sat Jan 21 2023
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 972 mb low 240 nm NW of Shemya moves into Siberia Sun morning. 
A 958 mb low 470 nm S of Unalaska moves 70 nm S of Sand Point at 
976 mb Sun evening, before dissipating over the Alaska Peninsula 
Mon evening.

$$

PKZ150-221330-
South of the AK Peninsula Sitkinak to Castle Cape-
325 PM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...E wind increasing to 45 kt. Seas 8 ft building 
to 16 ft after midnight. Rain and snow.
.SUN...E wind 40 kt becoming SE 30 kt in the afternoon. 
Seas 18 ft. Widespread rain showers.
.SUN NIGHT...SE wind 25 kt. Seas 24 ft. Rain.
.MON...SW wind 30 kt. Seas 24 ft.
.MON NIGHT...S wind 20 kt. Seas 17 ft.
.TUE...SE wind 20 kt. Seas 13 ft.
.WED THROUGH THU...S wind 20 kt. Seas 9 ft.

$$

PKZ155-221330-
South of the AK Peninsula Castle Cape to Cape Sarichef-
325 PM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...E wind 45 kt. Seas 22 ft. From the Shumagin Islands E, 
seas 12 ft building to 19 ft after midnight. Rain and snow.
.SUN...E wind 40 kt diminishing to 25 kt in the afternoon. 
Seas 19 ft. Rain.
.SUN NIGHT...SW wind 25 kt. Seas 20 ft.
.MON...SW wind 25 kt. Seas 18 ft.
.MON NIGHT...SE wind 15 kt. Seas 14 ft.
.TUE...SE wind 15 kt. Seas 13 ft.
.WED...SW wind 20 kt. Seas 13 ft.
.THU...SE wind 25 kt. Seas 12 ft.

$$

PKZ160-221330-
Bristol Bay-
325 PM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...NE wind 40 kt. Seas in ice free waters 7 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels.
.SUN...NE wind 40 kt. Seas in ice free waters 7 ft. Heavy freezing
spray in the morning.
.SUN NIGHT...NE wind 25 kt. Seas in ice free waters 6 ft. Heavy
freezing spray.
.MON...E wind 25 kt. Seas in ice free waters 5 ft.
.MON NIGHT...E wind 15 kt. Seas in ice free waters 2 ft.
.TUE...E wind 20 kt. Seas in ice free waters 3 ft.
.WED...W wind 15 kt. Seas in ice free waters 3 ft.
.THU...SE wind 20 kt. Seas in ice free waters 2 ft.

$$

PKZ165-221330-
Port Heiden to Cape Sarichef-
325 PM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...NE wind 45 kt. Seas 16 ft. Freezing spray in the evening.
snow in the evening, snow and rain after midnight.
.SUN...NE wind 40 kt. Seas 16 ft. Rain and snow.
.SUN NIGHT...NE wind 25 kt except E 30 kt from Port Moller E. 
Seas 11 ft.
.MON...S wind 20 kt. Seas 8 ft.
.MON NIGHT...SE wind 15 kt. Seas 5 ft.
.TUE...E wind 15 kt. Seas 4 ft.
.WED...W wind 25 kt. Seas 6 ft.
.THU...SE wind 30 kt. Seas 5 ft.

$$

PKZ170-221330-
Cape Sarichef to Nikolski Bering Side-
325 PM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...

.TONIGHT...E wind 50 kt diminishing to 40 kt after midnight. 
Gusts to 65 kt in the evening. Seas 20 ft. Snow and rain.
.SUN...NE wind 35 kt. Seas 17 ft. Rain and snow.
.SUN NIGHT...NE wind 20 kt. Seas 13 ft.
.MON AND MON NIGHT...SE wind 15 kt. Seas 8 ft.
.TUE...NE wind 20 kt. Seas 6 ft.
.WED...SW wind 35 kt. Seas 7 ft.
.THU...SE wind 35 kt. Seas 9 ft.

$$

PKZ171-221330-
Unalaska Bay-
325 PM AKST Sat Jan 21 2023

...GALE WARNING TONIGHT...

.TONIGHT...E wind 45 kt. Gusts to 65 kt in the evening. 
Seas 7 ft. Rain and snow.
.SUN...NE wind 25 kt diminishing to 15 kt in the afternoon. 
Seas 5 ft subsiding to 3 ft in the afternoon. Widespread rain 
showers.
.SUN NIGHT...Variable wind less than 10 kt. Seas 3 ft. Rain.
.MON AND MON NIGHT...SE wind 10 kt. Seas 2 ft.
.TUE...N wind 15 kt. Seas 3 ft.
.WED...W wind 20 kt. Seas 3 ft.
.THU...SE wind 25 kt. Seas 2 ft.

$$

PKZ172-221330-
Cape Sarichef to Nikolski Pacific Side-
325 PM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...

.TONIGHT...E wind 50 kt. Gusts to 65 kt in the evening. 
Seas 27 ft. Rain and snow.
.SUN...NE wind 35 kt diminishing to 20 kt in the afternoon. 
Seas 21 ft.
.SUN NIGHT...Variable wind 10 kt becoming S 20 kt after midnight.
Seas 15 ft.
.MON...S wind 25 kt. Seas 16 ft.
.MON NIGHT...SE wind 15 kt. Seas 12 ft.
.TUE...SW wind 25 kt. Seas 15 ft.
.WED...SW wind 35 kt. Seas 12 ft.
.THU...SE wind 35 kt. Seas 14 ft.

$$

PKZ173-221330-
Nikolski to Seguam Island Bering Side-
325 PM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...

.TONIGHT...E wind 50 kt diminishing to 40 kt after midnight. 
Seas 25 ft. Rain and snow.
.SUN...NE wind 30 kt diminishing to 20 kt in the afternoon. 
Seas 21 ft. Rain and snow.
.SUN NIGHT...NE wind 20 kt. Seas 15 ft.
.MON AND MON NIGHT...S wind 15 kt. Seas 11 ft.
.TUE...W wind 25 kt. Seas 9 ft.
.WED THROUGH THU...S wind 40 kt. Seas 10 ft.

$$

PKZ174-221330-
Nikolski to Seguam Island Pacific Side-
325 PM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...

.TONIGHT...E wind 50 kt diminishing to 35 kt after midnight. 
Seas 32 ft subsiding to 25 ft after midnight. Rain.
.SUN...NE wind 30 kt diminishing to 15 kt in the afternoon. 
Seas 21 ft.
.SUN NIGHT...Variable wind 10 kt becoming S 15 kt after midnight.
Seas 15 ft.
.MON...SW wind 20 kt. Seas 11 ft.
.MON NIGHT...SW wind 15 kt. Seas 10 ft.
.TUE...W wind 30 kt. Seas 14 ft.
.WED THROUGH THU...S wind 40 kt. Seas 14 ft.

$$

PKZ175-221330-
Seguam Island to Adak Bering Side-
325 PM AKST Sat Jan 21 2023

...GALE WARNING TONIGHT...

.TONIGHT...NE wind 45 kt diminishing to 30 kt after midnight. 
Seas 23 ft subsiding to 17 ft after midnight. Rain and snow.
.SUN...NE wind 30 kt. Seas 21 ft. Rain and snow.
.SUN NIGHT...NE wind 20 kt. Seas 16 ft.  and snow.
.MON...NW wind 20 kt. Seas 12 ft.
.MON NIGHT...W wind 30 kt. Seas 12 ft.
.TUE...W wind 30 kt. Seas 13 ft.
.WED...S wind 35 kt. Seas 9 ft.
.THU...S wind 30 kt. Seas 9 ft.

$$

PKZ176-221330-
Seguam Island to Adak Pacific Side-
325 PM AKST Sat Jan 21 2023

...GALE WARNING TONIGHT...

.TONIGHT...NE wind 45 kt diminishing to 30 kt after midnight. 
Seas 32 ft subsiding to 25 ft after midnight. Rain and snow.
.SUN...NE wind 25 kt. Seas 21 ft. Rain.
.SUN NIGHT...N wind 15 kt. Seas 15 ft. Rain.
.MON...W wind 25 kt. Seas 11 ft.
.MON NIGHT...W wind 35 kt. Seas 14 ft.
.TUE...W wind 40 kt. Seas 18 ft.
.WED...S wind 40 kt. Seas 9 ft.
.THU...S wind 30 kt. Seas 18 ft.

$$

PKZ177-221330-
Adak to Kiska-
325 PM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...N wind 35 kt except 20 kt E of Amchitka Pass. 
Seas 20 ft. Rain and snow.
.SUN...N wind 35 kt except 20 kt E of Amchitka Pass. 
Seas 19 ft. Rain and snow.
.SUN NIGHT...NW wind 30 kt except 15 kt E of Amchitka Pass. 
Seas 18 ft. Rain and snow.
.MON...NW wind 35 kt. Seas 15 ft.
.MON NIGHT...NW wind 40 kt. Seas 16 ft.
.TUE...W wind 40 kt. Seas 16 ft.
.WED...SE wind 40 kt. Seas 10 ft.
.THU...S wind 35 kt. Seas 21 ft.

$$

PKZ178-221330-
Kiska to Attu-
325 PM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...NW wind 35 kt. Seas 17 ft.
.SUN...NW wind 40 kt. Seas 19 ft. Snow and rain.
.SUN NIGHT...NW wind 35 kt. Seas 19 ft.
.MON...NW wind 30 kt. Seas 16 ft.
.MON NIGHT...W wind 35 kt. Seas 15 ft.
.TUE...W wind 35 kt. Seas 16 ft.
.WED...SE wind 45 kt. Seas 13 ft.
.THU...S wind 40 kt. Seas 27 ft.

$$

PKZ179-221330-
Pribilof Islands Near Shore Waters-
325 PM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...E wind 50 kt. Seas 20 ft. Freezing spray.
.SUN...NE wind 40 kt. Seas 19 ft. Heavy freezing spray from Saint 
Paul north. Snow.
.SUN NIGHT...NE wind 35 kt. Seas 16 ft. Heavy freezing spray from 
Saint Paul north. Snow.
.MON AND MON NIGHT...NE wind 30 kt. Seas 12 ft.
.TUE THROUGH WED...NE wind 30 kt. Seas 9 ft.
.THU...SE wind 30 kt. Seas 11 ft.

$$

PKZ180-221330-
Kuskokwim Delta and Etolin Strait-
325 PM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...NE wind increasing to 40 kt. Seas in ice free waters 9 
ft. Extreme freezing spray at a rate of 4 cm per hour or greater may
rapidly accumulate on vessels. 
.SUN...NE wind 40 kt. Seas in ice free waters 9 ft. Extreme freezing 
spray at a rate of 4 cm per hour or greater may rapidly accumulate 
on vessels. 
.SUN NIGHT...NE wind 35 kt diminishing to 25 kt after midnight. Seas
in ice free waters 9 ft. Extreme freezing spray at a rate of 4 cm 
per hour or greater may rapidly accumulate on vessels. 
.MON...NE wind 30 kt. Seas in ice free waters 6 ft.
.MON NIGHT...NE wind 25 kt. Seas in ice free waters 4 ft.
.TUE...N wind 25 kt. Seas in ice free waters 3 ft.
.WED...NW wind 20 kt. Seas in ice free waters 5 ft.
.THU...SE wind 25 kt. Seas in ice free waters 4 ft.

$$

PKZ181-221330-
North and West of Nunivak Island-
325 PM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...NE wind 30 kt increasing to 40 kt after midnight.
.SUN...NE wind 40 kt.
.SUN NIGHT...NE wind 40 kt.
.MON AND MON NIGHT...NE wind 30 kt.
.TUE...N wind 25 kt.
.WED...NW wind 20 kt.
.THU...SE wind 25 kt.

$$

PKZ185-221330-
Saint Matthew Island Waters-
325 PM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...NE wind 40 kt E of Saint Matthew Island...E 45 kt W of
Saint Matthew Island. Seas in ice free waters 20 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels. 
.SUN...NE wind 45 kt. Seas in ice free waters 20 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels. 
.SUN NIGHT...NE wind 45 kt. Seas in ice free waters 20 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels.
.MON AND MON NIGHT...NE wind 40 kt. Seas in ice free waters 17 ft.
.TUE...NE wind 35 kt. Seas in ice free waters 15 ft.
.WED...NE wind 40 kt. Seas in ice free waters 10 ft.
.THU...E wind 40 kt. Seas in ice free waters 17 ft.

$$
519 
FZAK52 PAFC 221313
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
413 AM AKST Sun Jan 22 2023

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.

PKZ199-230145-
413 AM AKST Sun Jan 22 2023
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 983mb low 380 nm NW of Attu moves into Siberia through Sun 
afternoon. A 958mb low 460 nm S of Unalaska moves to 110 nm S of
Cold Bay at 975mb Sun night before dissipating over the Alaska 
Peninsula Mon afternoon. A 974mb forms 170 nm SE of Atka Sun 
afternoon and moves to 110 nm E of Atka at 984mb by Tue morning.

$$

PKZ150-230145-
South of the AK Peninsula Sitkinak to Castle Cape-
413 AM AKST Sun Jan 22 2023

...GALE WARNING TODAY...

.TODAY...E wind 40 kt diminishing to 30 kt in the afternoon.
Seas 18 ft. Widespread rain showers.
.TONIGHT...SE wind 30 kt. Seas 18 ft building to 25 ft after
midnight. Rain showers.
.MON...S wind 30 kt. Seas 24 ft.
.MON NIGHT...S wind 20 kt. Seas 17 ft.
.TUE...SE wind 25 kt. Seas 13 ft.
.WED...SW wind 20 kt. Seas 12 ft.
.THU...SW wind 25 kt. Seas 8 ft.

$$

PKZ155-230145-
South of the AK Peninsula Castle Cape to Cape Sarichef-
413 AM AKST Sun Jan 22 2023

...GALE WARNING TODAY...

.TODAY...E wind 35 kt diminishing to 25 kt in the afternoon.
Seas 18 ft. Rain showers.
.TONIGHT...E wind 20 kt becoming S 30 kt after midnight.
Seas 20 ft. Rain showers.
.MON...SW wind 30 kt. Seas 20 ft.
.MON NIGHT...SE wind 15 kt. Seas 14 ft.
.TUE...S wind 20 kt. Seas 13 ft.
.WED...SW wind 20 kt. Seas 12 ft.
.THU...S wind 35 kt. Seas 12 ft.

$$

PKZ160-230145-
Bristol Bay-
413 AM AKST Sun Jan 22 2023

...GALE WARNING TODAY...
...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY...

.TODAY...NE wind 40 kt. Seas in ice free waters 7 ft.
Heavy freezing spray near the ice edge. Snow.
.TONIGHT...NE wind 30 kt. Seas in ice free waters 6 ft.
Heavy freezing spray near the ice edge.
.MON...NE wind 30 kt. Seas in ice free waters 5 ft.
Heavy freezing spray near the ice edge.
.MON NIGHT...E wind 20 kt. Seas in ice free waters 3 ft.
.TUE...NE wind 20 kt. Seas in ice free waters 3 ft.
.WED...SW wind 10 kt. Seas in ice free waters 2 ft.
.THU...SE wind 25 kt. Seas in ice free waters 2 ft.

$$

PKZ165-230145-
Port Heiden to Cape Sarichef-
413 AM AKST Sun Jan 22 2023

...GALE WARNING TODAY...

.TODAY...NE wind 40 kt. Seas 16 ft. Snow with rain.
.TONIGHT...NE wind 30 kt. Seas 12 ft.
.MON...SE wind 15 kt except E 25 kt from Port Moller E. Seas 7 ft.
.MON NIGHT...SE wind 20 kt. Seas 5 ft.
.TUE...E wind 15 kt. Seas 5 ft.
.WED...W wind 25 kt. Seas 5 ft.
.THU...SE wind 30 kt. Seas 5 ft.

$$

PKZ170-230145-
Cape Sarichef to Nikolski Bering Side-
413 AM AKST Sun Jan 22 2023

...GALE WARNING TODAY...

.TODAY...NE wind 40 kt diminishing to 30 kt in the afternoon.
Seas 18 ft. Rain and snow.
.TONIGHT...NE wind 20 kt. Seas 13 ft. Rain showers.
.MON...S wind 15 kt. Seas 9 ft.
.MON NIGHT...SE wind 15 kt. Seas 7 ft.
.TUE...N wind 20 kt. Seas 9 ft.
.WED...SW wind 35 kt. Seas 9 ft.
.THU...SE wind 35 kt. Seas 9 ft.

$$

PKZ171-230145-
Unalaska Bay-
413 AM AKST Sun Jan 22 2023

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NE wind 30 kt diminishing to 15 kt in the afternoon. Gusts
to 40 kt early. Seas 5 ft subsiding to 3 ft in the afternoon. 
Widespread rain and snow showers.
.TONIGHT...N wind 10 kt in the evening becoming variable less than
10 kt. Seas 3 ft. Rain showers.
.MON...S wind 10 kt increasing to 15 kt in the afternoon.
Seas 2 ft. Rain showers.
.MON NIGHT...SE wind 10 kt. Seas 2 ft.
.TUE...W wind 10 kt. Seas 3 ft.
.WED...SW wind 25 kt. Seas 2 ft.
.THU...SE wind 25 kt. Seas 3 ft.

$$

PKZ172-230145-
Cape Sarichef to Nikolski Pacific Side-
413 AM AKST Sun Jan 22 2023

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...NE wind 30 kt. Seas 20 ft.
.TONIGHT...N wind 15 kt becoming SW after midnight. Seas 16 ft.
.MON...S wind 25 kt. Seas 13 ft.
.MON NIGHT...SE wind 15 kt. Seas 12 ft.
.TUE...SW wind 20 kt. Seas 15 ft.
.WED...SW wind 35 kt. Seas 13 ft.
.THU...S wind 35 kt. Seas 14 ft.

$$

PKZ173-230145-
Nikolski to Seguam Island Bering Side-
413 AM AKST Sun Jan 22 2023

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...NE wind 30 kt. Seas 22 ft. Rain and snow.
.TONIGHT...NE wind 20 kt in the evening becoming variable 10 kt.
Seas 16 ft.
.MON AND MON NIGHT...Variable wind 10 kt. Seas 10 ft.
.TUE...NW wind 20 kt. Seas 10 ft.
.WED...S wind 35 kt. Seas 10 ft.
.THU...S wind 30 kt. Seas 10 ft.

$$

PKZ174-230145-
Nikolski to Seguam Island Pacific Side-
413 AM AKST Sun Jan 22 2023

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...NE wind 30 kt diminishing to 15 kt in the afternoon.
Seas 21 ft. Rain.
.TONIGHT...Variable wind 10 kt. Seas 15 ft.
.MON...S wind 20 kt. Seas 11 ft.
.MON NIGHT...SW wind 15 kt. Seas 10 ft.
.TUE...W wind 25 kt. Seas 14 ft.
.WED...S wind 40 kt. Seas 13 ft.
.THU...S wind 35 kt. Seas 15 ft.

$$

PKZ175-230145-
Seguam Island to Adak Bering Side-
413 AM AKST Sun Jan 22 2023

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...NE wind 30 kt. Seas 22 ft. Rain and snow.
.TONIGHT...NE wind 20 kt. Seas 17 ft. Rain showers.
.MON...NW wind 20 kt. Seas 13 ft. Rain showers and snow showers.
.MON NIGHT...W wind 30 kt. Seas 12 ft.
.TUE...NW wind 30 kt. Seas 13 ft.
.WED...SE wind 40 kt. Seas 11 ft.
.THU...S wind 30 kt. Seas 9 ft.

$$

PKZ176-230145-
Seguam Island to Adak Pacific Side-
413 AM AKST Sun Jan 22 2023

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...NE wind 25 kt. Seas 21 ft. Rain.
.TONIGHT...N wind 15 kt. Seas 15 ft. Rain.
.MON...W wind 25 kt. Seas 11 ft.
.MON NIGHT...W wind 35 kt. Seas 15 ft.
.TUE...W wind 40 kt. Seas 18 ft.
.WED...S wind 40 kt. Seas 12 ft.
.THU...S wind 30 kt. Seas 18 ft.

$$

PKZ177-230145-
Adak to Kiska-
413 AM AKST Sun Jan 22 2023

...GALE WARNING TODAY...

.TODAY...N wind 25 kt Bering side...NW 40 kt Pac side. Seas 20 ft.
.TONIGHT...NW wind 30 kt. Seas 18 ft. Rain with snow.
.MON...NW wind 30 kt. Seas 15 ft. Snow and rain.
.MON NIGHT...NW wind 40 kt. Seas 17 ft.
.TUE...NW wind 40 kt. Seas 16 ft.
.WED...SE wind 45 kt. Seas 15 ft.
.THU...S wind 40 kt. Seas 21 ft.

$$

PKZ178-230145-
Kiska to Attu-
413 AM AKST Sun Jan 22 2023

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW wind 40 kt. Seas 20 ft.
.TONIGHT...NW wind 35 kt. Seas 20 ft. Snow.
.MON...NW wind 30 kt. Seas 17 ft. Snow.
.MON NIGHT...NW wind 35 kt. Seas 15 ft.
.TUE...NW wind 45 kt. Seas 16 ft.
.WED...SE wind 50 kt. Seas 21 ft.
.THU...SE wind 45 kt. Seas 27 ft.

$$

PKZ179-230145-
Pribilof Islands Near Shore Waters-
413 AM AKST Sun Jan 22 2023

...GALE WARNING THROUGH TONIGHT...
...HEAVY FREEZING SPRAY WARNING TODAY AND MONDAY...

.TODAY...NE wind 40 kt. Seas 20 ft. Heavy freezing spray N of Saint
George Island.
.TONIGHT...NE wind 40 kt. Seas 17 ft. Freezing spray.
.MON...NE wind 30 kt. Seas 14 ft. Heavy freezing spray N of Saint
George Island.
.MON NIGHT...NE wind 30 kt. Seas 12 ft.
.TUE THROUGH WED...NE wind 30 kt. Seas 10 ft.
.THU...SE wind 30 kt. Seas 11 ft.

$$

PKZ180-230145-
Kuskokwim Delta and Etolin Strait-
413 AM AKST Sun Jan 22 2023

...GALE WARNING THROUGH TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY...

.TODAY...NE wind 40 kt. Seas in ice free waters 9 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels. 
.TONIGHT...NE wind 35 kt. Seas in ice free waters 8 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels. 
.MON...NE wind 30 kt. Seas in ice free waters 6 ft. Extreme freezing
spray at a rate of 4 cm per hour or greater may rapidly accumulate 
on vessels. 
.MON NIGHT...NE wind 30 kt. Seas in ice free waters 5 ft.
.TUE...N wind 25 kt. Seas in ice free waters 3 ft.
.WED...NW wind 20 kt. Seas in ice free waters 2 ft.
.THU...SE wind 30 kt. Seas in ice free waters 4 ft.

$$

PKZ181-230145-
North and West of Nunivak Island-
413 AM AKST Sun Jan 22 2023

...GALE WARNING THROUGH TONIGHT...

.TODAY...NE wind 40 kt.
.TONIGHT...NE wind 40 kt.
.MON AND MON NIGHT...NE wind 30 kt.
.TUE...N wind 25 kt.
.WED...N wind 20 kt.
.THU...SE wind 30 kt.

$$

PKZ185-230145-
Saint Matthew Island Waters-
413 AM AKST Sun Jan 22 2023

...GALE WARNING THROUGH MONDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY...

.TODAY...NE wind 45 kt. Seas in ice free waters 20 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels. 
.TONIGHT...NE wind 45 kt. Seas in ice free waters 20 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels. 
.MON...NE wind 35 kt E of Saint Matthew Island... NE 40 kt W of
Saint Matthew Island. Seas in ice free waters 17 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels. 
.MON NIGHT...NE wind 40 kt. Seas in ice free waters 16 ft.
.TUE...NE wind 35 kt. Seas in ice free waters 15 ft.
.WED...NE wind 40 kt. Seas in ice free waters 10 ft.
.THU...E wind 40 kt. Seas in ice free waters 17 ft.

$$

What forecasters said that day

The local office's own words before this storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Anchorage, AK wrote its last area forecast discussion before this storm warning went out at Jan 20, 5:46 AM AKST, 9 hours 40 minutes earlier.

Area forecast discussion, Jan 20, 5:46 AM AKST, 9 hours 40 minutes before
Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
546 AM AKST Fri Jan 20 2023

.ANALYSIS AND UPPER LEVELS...

The pattern remains amplified across the North Pacific with upper
level ridging extending across the west coast of the lower-48. A
deep upper level low currently extends across eastern Sibera
through the Seward Peninsula. A negatively tilted trough currently
extends southeastward from the aforementioned low center into the
North Pacific. A second upper level low is currently lingering
over the western Aleutians. A third low is currently developing
along a negatively tilted trough extending from the aforementioned
low over the western Aleutians into the North Pacific. This third
low is currently moving northward.

Closer to the surface, radar imagery shows precipitation moving
northward from the Gulf of Alaska to over Southcentral Alaska.
Observations show precipitation type to be rain along the
immediate coastal areas of the southern Kenai Peninsula and across
Prince William Sound. Snow is the precipitation type across the
Kenai and Chugach Mountains as well as in the Anchorage Bowl.

Radar imagery also shows areas of light snow across the Kuskokwim
Delta and across the northern Alaska Peninsula and in Bristol Bay.

&&

.MODEL DISCUSSION...

Guidance remains in good agreement with respect to the placement
and intensity of synoptic scale features. The biggest forecast
challenge continues to be smaller scale mesoscale features and
local effects. Forecast confidence overall is average.

&&

.AVIATION...
PANC...Conditions will mainly be MVFR to IFR this TAF period as
ceilings and visiblity will both fluctuate. Winds will remain
light during this time.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3:
Today through Sunday night)...

A North Pacific low center with the elongated trough is moving
northward into the Gulf this morning. Easterly waves wrapping
around the low is pushing snow showers across Southcentral last
night through this morning. Northerly winds at the surface for
Anchorage along with this passage has led to a little higher than
expected snow amounts. This is expected to taper off over the next
few hours this morning as the synoptic wind field shifts
easterly, downsloping Anchorage and western Kenai Peninsula, and
finally northerly this afternoon. Cooler air will then advect
across Southcentral. The low track has come into better agreement
with the center moving towards Cape Suckling and Yakutat. There
are still some uncertainties that remain with the timing of each
successive wave and timing of the low tracking more inland and
eastward, especially for Saturday as a ridge begins to build in
from west to east. Widespread gales over the Gulf is likely with
this low. As the low approaches the coast, winds are expected to
increase in the Valdez and Cordova area. Snow falling in Thompson
Pass along with the increased north to northeasterly winds will
lead to reduced visibility and blowing snow. Although overall
accumulations are expected to be about two to four inches, a
Winter Weather Advisory is in effect from noon to 9PM. Winds
appear to remain beyond midnight elevated after snow diminishes.

With a more progressive pattern, the ridge will be brief and
allow temperatures to be cooler this weekend. The next system will
enter the western Gulf late Saturday night into Sunday morning.
Higher end gales and easterly winds are likely through Sunday
across the Gulf. Plenty of moisture and winds will blow into
Kodiak and through the Barren Islands and Kamishak Gap. Another
repeat of unsettled weather and precipitation type challenges
return with the passage of this trough going into next week.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3: Today
through Sunday night)...

An upper-level trough lifting northeast across Southwest Alaska
will continue to produce light snow showers across much of the
region today. Light snow will gradually clear from west to east
by midday, becoming limited to the slopes of the Western Alaska
Range by tonight. A strong upper-level ridge will move in behind
the trough, bringing dry and clear conditions for Southwest Alaska
beginning Friday night. Clear skies will allow temperatures to
fall area-wide, with temperatures approaching 20 below zero in
the Kuskokwim Delta. This will allow wind chills to reach near 40
below zero by early Saturday morning with light northerly flow.
Winds increase on Saturday as the pressure gradient increases in
response to a deep low nearing the Bering Sea, but temperatures
recover somewhat as the winds mix down warmer air from aloft.
Increasing offshore flow will have the potential to transport
already existing snow within the Kuskokwim Delta and Bristol Bay
regions through Sunday even as the area remains otherwise dry.
Then, clouds and precipitation reach the Alaska Peninsula starting
Saturday night as the low pushes its front northward. By Sunday,
the leading edge of the front reaches the Southwest coast,
allowing for the onset of light and showery precipitation.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 3: Today
through Sunday night)...

Active weather is forecast to continue for the Bering
Sea/Aleutians through the weekend. First, a weak low south of
Kiska will deepen this morning as it pushes north across the
western Aleutians. This low will develop into a strong, compact
system, bringing gales, with localized storm force winds, to the
western/central Aleutians today. Snow may briefly be possible
before changing over to rain by midday. The low then moves into
the western Bering Sea tonight as it continues to deepen, exiting
toward Russia by Saturday morning.

Then, a second low in the North Pacific, located several hundred
miles south of Adak this morning, will push a front across the
Aleutian Islands beginning Saturday morning. This low will prove
more impactful as it begins to run up against strong surface
ridging in the northern Bering Sea, driving storm force easterly
winds through the eastern Aleutians on Saturday. Steep low-level
lapse rates will be present in an environment with 90 mph winds
in the low levels of the atmosphere, suggesting a significant
potential for hurricane force gusts to mix down to the surface as
the front pushes through. This has prompted the issuance of a High
Wind Watch for the eastern Aleutians, including Dutch Harbor and
Nikolski, which may see gusts as high as 80 mph. As the peak of
the winds ends Saturday evening with the front pushing northward,
snow will begin for the Aleutian Chain before transitioning to
rain later Saturday night. Strong, gusty winds also move into the
Pribilof Islands within a similar environment Saturday afternoon
and evening as the low tracks northward. However, hurricane force
gusts appear less likely there at this time. Gale force winds
with air temperatures in the single digits driving off the ice
cover will also induce the potential for extreme freezing spray
near the ice edge.

By Sunday, the low begins to occlude, allowing for the strongest
winds to diminish along the front. Though, strong surface high
pressure will persist in the Chukchi Sea, continuing to support a
strong pressure gradient across the Bering. As a result, storm
force winds stick around into Sunday as the front pushes into the
northern Bering.

&&
.LONG TERM FORECAST (Days 4 through 7: Monday through
Thursday)...

The overall pattern in the extended range continues to be
difficult to resolve, with even some of the larger scale players
in the pattern evolution shifting around considerably in terms of
the run-to-run continuity. One of the biggest changes is that
newer model runs from today are no longer showing the Arctic low
currently drifting near Siberia move nearly as far south as it
heads east towards northern Alaska over the weekend, resulting in
a very different looking setup across the Bering and Southwest at
the start of the extended period on Monday. Most solutions now
keep the low and most of the bitterly cold Arctic air well removed
from the outlook area over the Interior and North Slope, with the
projections showing the low stretch out to the south and allow
very cold air to spread into the eastern Bering and Southwest
losing support. The lack of cold, dense air and higher pressure
developing across the same region has resulted in big shifts for
the track of a large area of low pressure expected to move past
the Aleutians into the southern Bering early next week. The
consensus from 12z guidance has shifted the low track
significantly north, now showing the low and a deep upper trough
lift well into the Bering on Monday and Tuesday rather than
staying along or south of the Aleutian Chain.

The potential for precipitation east of the low extending across
Southwest and Southcentral has shifted notably north as well, with
much higher potential for interior parts of the southern Mainland
to see periods of snow or even rain as deep, southerly flow
pushes warm air and multiple shortwaves inland from the Gulf
through midweek. All of the large, wild shifts in even the broader
scale pattern make it nearly impossible to hash out details for
individual systems, but it does look like a clear tilt towards a
warmer/wetter period for much of next week. There is also an
emerging signal for a very potent low to enter the far western
Bering by Thursday, possibly impacting the western fringes of the
Aleutians/Bering with storm force winds, and perhaps even
stronger. The GFS is by far the most bullish with this scenario,
currently depicting a 930-940 mb Hurricane force low move west of
Attu by Thursday afternoon. The ECMWF/Canadian are much weaker
with this system and are showing the low move much farther west.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...High Wind Watch 185.
Winter Weather Advisory 131.
MARINE...Heavy Freezing Spray Warning 160 165 179 180 185 412 414.
Storm Warning 130 170 171 172 173 174 176 177 411 412 413 414.
Gale Warning 119 131 132 138 150 155 160 165 175 178 179 180 185 351 352.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...ED
SOUTHCENTRAL ALASKA...VR
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...CQ
LONG TERM...AS

The office that day

Everything else NWS Anchorage, AK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 20, 3:26 PM AKSTGale WarningAFC6 days
Jan 20, 3:43 PM AKSTGale WarningAFC12 hr
Jan 20, 3:43 PM AKSTSmall Craft AdvisoryAFC37 hr
Jan 20, 3:57 PM AKSTHigh Wind WarningAFC29 hr
Jan 21, 3:37 AM AKSTGale WarningAFC72 hr
Jan 21, 3:42 AM AKSTGale WarningAFC48 hr
Jan 21, 3:42 AM AKSTSmall Craft AdvisoryAFC48 hr

Nearby

Storm Warnings in Alaska, 2023Every storm warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.