Alert archive / Alaska / Storm Warnings in 2023

Storm Warning 72, NWS Anchorage, AK

March 1, 2023

NWS Anchorage, AK issued this storm warning at Mar 1, 2023, 3:38 AM AKST. It was in force for 36 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
Mar 1, 2023, 3:38 AM AKST (12:38 UTC)
Expired
Mar 2, 2023, 3:14 PM AKST
In force
36 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

959 
FZAK52 PAFC 011238
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
338 AM AKST Wed Mar 1 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.

PKZ199-020145-
338 AM AKST Wed Mar 1 2023
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 994 mb Kamchatka low moves 140 nm N of Shemya at 992 mb this 
afternoon. It then skirts over the Pribilof Islands at 988 mb Thu 
morning before diving southeastward across the Alaska Peninsula as a 
weaker open wave trough Thu evening. The next western Bering low 
brings a front into the Western Aleutians Fri morning.

$$

PKZ150-020145-
South of the AK Peninsula Sitkinak to Castle Cape-
338 AM AKST Wed Mar 1 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...W wind 50 kt. Seas 23 ft. Snow.
.TONIGHT...W wind 50 kt. Seas 24 ft. Freezing spray.
.THU...W wind 40 kt becoming NW 30 kt in the afternoon. Seas 20 ft
subsiding to 14 ft in the afternoon. Freezing spray. Widespread
snow showers.
.THU NIGHT...NW wind 40 kt. Seas 16 ft.
.FRI...NW wind 45 kt. Seas 18 ft.
.SAT...SW wind 25 kt. Seas 10 ft.
.SUN...SE wind 25 kt. Seas 13 ft.

$$

PKZ155-020145-
South of the AK Peninsula Castle Cape to Cape Sarichef-
338 AM AKST Wed Mar 1 2023

...STORM WARNING TODAY...

.TODAY...W wind 50 kt. Seas 23 ft. Widespread snow showers.
.TONIGHT...W wind 45 kt. Seas 22 ft.
.THU...W wind 40 kt except SW 30 kt from the Shumagin Islands E.
Seas 18 ft. Widespread snow and rain showers.
.THU NIGHT...NW wind 35 kt. Seas 19 ft.
.FRI...W wind 35 kt. Seas 16 ft.
.SAT THROUGH SUN...SE wind 35 kt. Seas 18 ft.

$$

PKZ160-020145-
Bristol Bay-
338 AM AKST Wed Mar 1 2023

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

.TODAY...W wind 35 kt increasing to 45 kt in the afternoon. Seas
in ice free waters 16 ft. Heavy freezing spray. Widespread snow 
showers.
.TONIGHT...W wind 45 kt. Seas in ice free waters 16 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels.
.THU...NW wind 25 kt becoming N 15 kt in the afternoon. Seas in
ice free waters 10 ft subsiding to 6 ft in the afternoon. Heavy 
freezing spray.
.THU NIGHT...NW wind 30 kt. Seas in ice free waters 8 ft.
.FRI...NW wind 30 kt. Seas in ice free waters 9 ft.
.SAT...SE wind 25 kt. Seas in ice free waters 5 ft.
.SUN...SE wind 30 kt. Seas in ice free waters 5 ft.

$$

PKZ165-020145-
Port Heiden to Cape Sarichef-
338 AM AKST Wed Mar 1 2023

...GALE WARNING THROUGH TONIGHT...

.TODAY...W wind 45 kt. Seas 24 ft. Widespread snow showers.
.TONIGHT...W wind 40 kt becoming SW 25 kt after midnight. From
Port Moller E, W wind 45 kt diminishing to 35 kt after midnight. 
Seas 22 ft. Freezing spray.
.THU...SW wind 30 kt. From Port Moller E, SE wind 15 kt becoming
NE in the afternoon. Seas 12 ft. Widespread snow and rain showers.
.THU NIGHT...NW wind 30 kt. Seas 14 ft.
.FRI...W wind 30 kt. Seas 12 ft.
.SAT THROUGH SUN...SE wind 35 kt. Seas 11 ft.

$$

PKZ170-020145-
Cape Sarichef to Nikolski Bering Side-
338 AM AKST Wed Mar 1 2023

...STORM WARNING TODAY...

.TODAY...W wind 50 kt. Seas 23 ft. Widespread snow showers.
.TONIGHT...W wind 35 kt. Seas 20 ft subsiding to 15 ft after
midnight. Snow and rain.
.THU...SW wind 45 kt. Seas 19 ft building to 25 ft in the
afternoon. Widespread snow and rain showers.
.THU NIGHT...NW wind 40 kt. Seas 25 ft.
.FRI...SW wind 30 kt. Seas 12 ft.
.SAT...SE wind 40 kt. Seas 14 ft.
.SUN...SE wind 35 kt. Seas 14 ft.

$$

PKZ171-020145-
Unalaska Bay-
338 AM AKST Wed Mar 1 2023

...STORM WARNING TODAY...

.TODAY...W wind 50 kt. Seas 8 ft. Widespread snow showers.
.TONIGHT...W wind 35 kt becoming SW 25 kt after midnight. Seas 5
ft. Snow and rain.
.THU...W wind 40 kt. Seas 6 ft. Widespread snow and rain showers.
.THU NIGHT...NW wind 35 kt. Seas 10 ft.
.FRI...S wind 20 kt. Seas 2 ft.
.SAT...SE wind 30 kt. Seas 5 ft.
.SUN...SE wind 25 kt. Seas 4 ft.

$$

PKZ172-020145-
Cape Sarichef to Nikolski Pacific Side-
338 AM AKST Wed Mar 1 2023

...GALE WARNING THROUGH THURSDAY...

.TODAY...W wind 45 kt. Seas 21 ft. Widespread snow showers.
.TONIGHT...SW wind 40 kt. Seas 17 ft. Snow and rain.
.THU...W wind 45 kt. Seas 24 ft. Widespread snow and rain showers.
.THU NIGHT...NW wind 40 kt. Seas 22 ft.
.FRI...SW wind 25 kt. Seas 11 ft.
.SAT...SE wind 40 kt. Seas 23 ft.
.SUN...SE wind 35 kt. Seas 23 ft.

$$

PKZ173-020145-
Nikolski to Seguam Island Bering Side-
338 AM AKST Wed Mar 1 2023

...STORM WARNING THURSDAY...

.TODAY...W wind 40 kt. Seas 21 ft. Snow showers.
.TONIGHT...SW wind 45 kt. Seas 18 ft. Widespread snow and rain
showers.
.THU...W wind 50 kt. Seas 30 ft.
.THU NIGHT...W wind 40 kt. Seas 23 ft.
.FRI...S wind 30 kt. Seas 11 ft.
.SAT...SE wind 40 kt. Seas 21 ft.
.SUN...SE wind 25 kt. Seas 16 ft.

$$

PKZ174-020145-
Nikolski to Seguam Island Pacific Side-
338 AM AKST Wed Mar 1 2023

...GALE WARNING THROUGH THURSDAY...

.TODAY...W wind 45 kt diminishing to 35 kt in the afternoon. Seas
21 ft. Snow showers.
.TONIGHT...SW wind 35 kt increasing to 45 kt after midnight. Seas
21 ft. Rain and snow.
.THU...W wind 45 kt. Seas 25 ft.
.THU NIGHT...NW wind 40 kt. Seas 23 ft.
.FRI...S wind 30 kt. Seas 12 ft.
.SAT...SE wind 40 kt. Seas 24 ft.
.SUN...SE wind 25 kt. Seas 19 ft.

$$

PKZ175-020145-
Seguam Island to Adak Bering Side-
338 AM AKST Wed Mar 1 2023

...STORM WARNING TONIGHT AND THURSDAY...

.TODAY...W wind 40 kt. Seas 18 ft.
.TONIGHT...W wind 50 kt. Seas 16 ft building to 23 ft after
midnight. Rain and snow.
.THU...W wind 50 kt diminishing to 40 kt in the afternoon. Seas
27 ft.
.THU NIGHT...W wind 30 kt. Seas 17 ft.
.FRI...S wind 30 kt. Seas 10 ft.
.SAT...SE wind 35 kt. Seas 15 ft.
.SUN...W wind 20 kt. Seas 10 ft.

$$

PKZ176-020145-
Seguam Island to Adak Pacific Side-
338 AM AKST Wed Mar 1 2023

...GALE WARNING THROUGH THURSDAY...

.TODAY...W wind 40 kt becoming SW 30 kt in the afternoon. Seas
17 ft.
.TONIGHT...SW wind 45 kt. Seas 21 ft.
.THU...W wind 40 kt. Seas 22 ft.
.THU NIGHT...W wind 25 kt. Seas 14 ft.
.FRI...SE wind 35 kt. Seas 16 ft.
.SAT...SE wind 40 kt. Seas 23 ft.
.SUN...SW wind 20 kt. Seas 17 ft.

$$

PKZ177-020145-
Adak to Kiska-
338 AM AKST Wed Mar 1 2023

...STORM WARNING TONIGHT...

.TODAY...SW wind 30 kt becoming S 45 kt in the afternoon. Seas
17 ft. Snow and rain.
.TONIGHT...SW wind 50 kt. Seas 23 ft.
.THU...W wind 40 kt diminishing to 25 kt in the afternoon. Seas
21 ft.
.THU NIGHT...S wind 35 kt. Seas 12 ft.
.FRI...SE wind 35 kt. Seas 13 ft.
.SAT THROUGH SUN...NW wind 25 kt. Seas 15 ft.

$$

PKZ178-020145-
Kiska to Attu-
338 AM AKST Wed Mar 1 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...S wind 40 kt becoming SW 50 kt in the afternoon. Seas 15
ft building to 20 ft in the afternoon. Snow and rain.
.TONIGHT...W wind 50 kt diminishing to 40 kt after midnight. Seas
23 ft.
.THU...W wind 30 kt. Seas 18 ft subsiding to 13 ft in the
afternoon. Snow.
.THU NIGHT...S wind 45 kt. Seas 17 ft.
.FRI...S wind 45 kt. Seas 21 ft.
.SAT THROUGH SUN...NW wind 30 kt. Seas 14 ft.

$$

PKZ179-020145-
Pribilof Islands Near Shore Waters-
338 AM AKST Wed Mar 1 2023

...GALE WARNING TODAY...
...HEAVY FREEZING SPRAY WARNING TODAY...

.TODAY...W wind 40 kt. Seas 20 ft. Heavy freezing spray. Snow 
showers.
.TONIGHT...W wind 25 kt becoming SE after midnight. Seas 13 ft.
Freezing spray. Snow.
.THU...S wind 25 kt becoming NE in the afternoon. Seas 14 ft.
Freezing spray. Snow showers.
.THU NIGHT...W wind 20 kt. Seas 15 ft.
.FRI...SW wind 30 kt. Seas 13 ft.
.SAT...SE wind 40 kt. Seas 20 ft.
.SUN...SE wind 35 kt. Seas 20 ft.

$$

PKZ180-020145-
Kuskokwim Delta and Etolin Strait-
338 AM AKST Wed Mar 1 2023

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

.TODAY...W wind 45 kt. Seas in ice free waters 18 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels near the ice edge. Widespread snow showers.
.TONIGHT...W wind 45 kt becoming NW 35 kt after midnight. Seas in
ice free waters 18 ft. Extreme freezing spray at a rate of 4 cm per 
hour or greater may rapidly accumulate on vessels near the ice edge.
.THU...N wind 20 kt. Seas in ice free waters 8 ft. Heavy freezing
spray.
.THU NIGHT...NW wind 30 kt. Seas in ice free waters 9 ft.
.FRI...S wind 30 kt. Seas in ice free waters 8 ft.
.SAT THROUGH SUN...SE wind 40 kt. Seas in ice free waters 11 ft.

$$

PKZ181-020145-
North and West of Nunivak Island-
338 AM AKST Wed Mar 1 2023

...GALE WARNING TODAY...

.TODAY...W wind 40 kt.
.TONIGHT...W wind 30 kt becoming NW 15 kt after midnight.
.THU...N wind 15 kt.
.THU NIGHT...Variable wind 10 kt.
.FRI...SE wind 30 kt.
.SAT THROUGH SUN...SE wind 40 kt.

$$

PKZ185-020145-
Saint Matthew Island Waters-
338 AM AKST Wed Mar 1 2023

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

.TODAY...NW wind 40 kt E of Saint Matthew Island... NW 35 kt W of
Saint Matthew Island. Seas in ice free waters 12 ft. Extreme 
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels.
.TONIGHT...NW wind 25 kt E of Saint Matthew Island... NE 20 kt W
of Saint Matthew Island. Seas in ice free waters 8 ft. Heavy 
freezing spray.
.THU...NE wind 20 kt. Seas in ice free waters 8 ft. Heavy freezing
spray. Snow showers.
.THU NIGHT...NW wind 30 kt. Seas in ice free waters 11 ft.
.FRI...SE wind 40 kt. Seas in ice free waters 24 ft.
.SAT...SE wind 35 kt. Seas in ice free waters 23 ft.
.SUN...SW wind 35 kt. Seas in ice free waters 14 ft.

$$
4 follow-up statements
230 
FZAK52 PAFC 020036
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
336 PM AKST Wed Mar 1 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.

PKZ199-021315-
336 PM AKST Wed Mar 1 2023
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 990 mb low 125 nm North of Attu moves to 30 nm North of Cold 
Bay at 1003 mb Thu morning and dissipates Thu afternoon. Its front 
moves over the Aleutians Thu morning, then South of the Alaska 
Peninsula Thu afternoon. A 992 mb North Pacific low approaches the 
Western Aleutians Fri afternoon.

$$

PKZ150-021315-
South of the AK Peninsula Sitkinak to Castle Cape-
336 PM AKST Wed Mar 1 2023

...STORM WARNING TONIGHT...

.TONIGHT...W wind 50 kt. Seas 24 ft. Freezing spray.
.THU...W wind 45 kt becoming NW 30 kt in the afternoon. Seas 20 ft
subsiding to 14 ft in the afternoon. Freezing spray in the morning. 
Widespread snow showers.
.THU NIGHT...NW wind 30 kt increasing to 40 kt after midnight.
Seas 16 ft. Freezing spray.
.FRI...NW wind 45 kt. Seas 18 ft.
.FRI NIGHT...NW wind 40 kt. Seas 14 ft.
.SAT...SW wind 25 kt. Seas 8 ft.
.SUN THROUGH MON...SE wind 25 kt. Seas 13 ft.

$$

PKZ155-021315-
South of the AK Peninsula Castle Cape to Cape Sarichef-
336 PM AKST Wed Mar 1 2023

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...W wind 40 kt diminishing to 30 kt after midnight. From
the Shumagin Islands E, W wind 45 kt. Seas 21 ft.
.THU...W wind 40 kt. Seas 20 ft. Widespread snow and rain showers.
.THU NIGHT...NW wind 40 kt diminishing to 30 kt after midnight.
From the Shumagin Islands E, NW wind 35 kt. Seas 20 ft.
.FRI...NW wind 35 kt. Seas 16 ft.
.FRI NIGHT...W wind 30 kt. Seas 9 ft.
.SAT THROUGH SUN...SE wind 35 kt. Seas 18 ft.
.MON...SE wind 30 kt. Seas 18 ft.

$$

PKZ160-021315-
Bristol Bay-
336 PM AKST Wed Mar 1 2023

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...W wind 45 kt. Seas in ice free waters 16 ft. Heavy 
freezing spray.
.THU...NW wind 25 kt becoming N 15 kt in the afternoon. Seas in
ice free waters 11 ft subsiding to 6 ft in the afternoon. Heavy 
freezing spray.
.THU NIGHT...NW wind 20 kt increasing to 30 kt after midnight.
Seas in ice free waters 5 ft building to 8 ft after midnight. Extreme
freezing spray at a rate of 4 cm per hour or greater may rapidly 
accumulate on vessels near the ice edge.
.FRI...NW wind 30 kt. Seas in ice free waters 9 ft.
.FRI NIGHT...NE wind 20 kt. Seas in ice free waters 6 ft.
.SAT...E wind 25 kt. Seas in ice free waters 4 ft.
.SUN THROUGH MON...SE wind 30 kt. Seas in ice free waters 5 ft.

$$

PKZ165-021315-
Port Heiden to Cape Sarichef-
336 PM AKST Wed Mar 1 2023

...GALE WARNING TONIGHT...

.TONIGHT...W wind 40 kt becoming SW 25 kt after midnight. From
Port Moller E, W wind 45 kt diminishing to 35 kt after midnight. 
Seas 22 ft. Freezing spray.
.THU...SW wind 30 kt except SE 15 kt from Port Moller E. Seas 15
ft except 11 ft from Port Moller E. Snow and rain showers.
.THU NIGHT...N wind 30 kt. Seas 17 ft except 12 ft from Port
Moller E. Freezing spray.
.FRI...NW wind 25 kt. Seas 13 ft.
.FRI NIGHT...SW wind 20 kt. Seas 9 ft.
.SAT THROUGH SUN...SE wind 35 kt. Seas 11 ft.
.MON...SE wind 30 kt. Seas 7 ft.

$$

PKZ170-021315-
Cape Sarichef to Nikolski Bering Side-
336 PM AKST Wed Mar 1 2023

...STORM WARNING THURSDAY...

.TONIGHT...SW wind 35 kt. Seas 19 ft. Snow and rain.
.THU...W wind 50 kt. Seas 27 ft. Widespread snow and rain showers.
.THU NIGHT...NW wind 45 kt diminishing to 25 kt after midnight.
Seas 26 ft subsiding to 18 ft after midnight.
.FRI...SW wind 20 kt. Seas 13 ft.
.FRI NIGHT...S wind 30 kt. Seas 9 ft.
.SAT...SE wind 40 kt. Seas 14 ft.
.SUN...SE wind 35 kt. Seas 14 ft.
.MON...SE wind 25 kt. Seas 8 ft.

$$

PKZ171-021315-
Unalaska Bay-
336 PM AKST Wed Mar 1 2023

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...W wind 30 kt becoming SW 25 kt after midnight. Seas 5 ft.
Snow and rain.
.THU...W wind 45 kt. Seas 7 ft. Widespread snow and rain showers.
.THU NIGHT...NW wind 45 kt diminishing to 25 kt after midnight.
Seas 10 ft subsiding to 5 ft after midnight.
.FRI...SW wind 20 kt. Seas 3 ft.
.FRI NIGHT...S wind 25 kt. Seas 3 ft.
.SAT...SE wind 30 kt. Seas 5 ft.
.SUN...SE wind 25 kt. Seas 4 ft.
.MON...SE wind 15 kt. Seas 2 ft.

$$

PKZ172-021315-
Cape Sarichef to Nikolski Pacific Side-
336 PM AKST Wed Mar 1 2023

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...W wind 30 kt becoming SW 40 kt after midnight. Seas
17 ft. Snow and rain.
.THU...W wind 45 kt. Seas 23 ft. Snow showers and rain showers.
.THU NIGHT...NW wind 45 kt diminishing to 35 kt after midnight.
Seas 22 ft.
.FRI...W wind 20 kt. Seas 11 ft.
.FRI NIGHT...S wind 30 kt. Seas 7 ft.
.SAT...SE wind 40 kt. Seas 23 ft.
.SUN...SE wind 35 kt. Seas 23 ft.
.MON...SE wind 30 kt. Seas 19 ft.

$$

PKZ173-021315-
Nikolski to Seguam Island Bering Side-
336 PM AKST Wed Mar 1 2023

...STORM WARNING THURSDAY...

.TONIGHT...SW wind 45 kt. Seas 14 ft building to 19 ft after
midnight. Widespread snow and rain showers.
.THU...W wind 50 kt. Seas 29 ft.
.THU NIGHT...NW wind 40 kt becoming W 20 kt after midnight. Seas
23 ft subsiding to 16 ft after midnight.
.FRI...SW wind 25 kt. Seas 11 ft.
.FRI NIGHT...SE wind 35 kt. Seas 12 ft.
.SAT...SE wind 45 kt. Seas 22 ft.
.SUN...SE wind 25 kt. Seas 16 ft.
.MON...SE wind 15 kt. Seas 9 ft.

$$

PKZ174-021315-
Nikolski to Seguam Island Pacific Side-
336 PM AKST Wed Mar 1 2023

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 35 kt increasing to 45 kt after midnight. Seas 21
ft. Rain and snow.
.THU...W wind 45 kt. Seas 23 ft.
.THU NIGHT...NW wind 35 kt becoming W 20 kt after midnight. Seas
21 ft subsiding to 14 ft after midnight.
.FRI...S wind 20 kt. Seas 11 ft.
.FRI NIGHT...SE wind 35 kt. Seas 14 ft.
.SAT...SE wind 45 kt. Seas 24 ft.
.SUN...SE wind 25 kt. Seas 19 ft.
.MON...SE wind 15 kt. Seas 12 ft.

$$

PKZ175-021315-
Seguam Island to Adak Bering Side-
336 PM AKST Wed Mar 1 2023

...STORM WARNING TONIGHT...

.TONIGHT...SW wind 40 kt becoming W 50 kt after midnight. Seas 15
ft building to 25 ft after midnight. Rain and snow.
.THU...W wind 45 kt. Seas 26 ft.
.THU NIGHT...W wind 25 kt. Seas 16 ft.
.FRI...S wind 30 kt. Seas 9 ft.
.FRI NIGHT...SE wind 35 kt. Seas 11 ft.
.SAT...S wind 40 kt. Seas 16 ft.
.SUN...W wind 20 kt. Seas 10 ft.
.MON...NW wind 25 kt. Seas 12 ft.

$$

PKZ176-021315-
Seguam Island to Adak Pacific Side-
336 PM AKST Wed Mar 1 2023

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SW wind 40 kt. Seas 21 ft. Rain and snow.
.THU...W wind 40 kt. Seas 20 ft.
.THU NIGHT...W wind 25 kt. Seas 13 ft.
.FRI...S wind 20 kt. Seas 8 ft.
.FRI NIGHT...SE wind 40 kt. Seas 19 ft.
.SAT...S wind 40 kt. Seas 24 ft.
.SUN...SW wind 20 kt. Seas 17 ft.
.MON...NW wind 20 kt. Seas 11 ft.

$$

PKZ177-021315-
Adak to Kiska-
336 PM AKST Wed Mar 1 2023

...STORM WARNING TONIGHT...

.TONIGHT...SW wind 50 kt. Seas 23 ft.
.THU...W wind 35 kt diminishing to 25 kt in the afternoon. Seas
20 ft subsiding to 15 ft in the afternoon.
.THU NIGHT...S wind 35 kt. Seas 11 ft.
.FRI...S wind 35 kt. Seas 11 ft.
.FRI NIGHT...SE wind 30 kt. Seas 13 ft.
.SAT THROUGH SUN...NW wind 25 kt. Seas 16 ft.
.MON...NW wind 25 kt. Seas 12 ft.

$$

PKZ178-021315-
Kiska to Attu-
336 PM AKST Wed Mar 1 2023

...STORM WARNING TONIGHT...

.TONIGHT...W wind 50 kt diminishing to 35 kt after midnight. Seas
22 ft.
.THU...W wind 30 kt. Seas 17 ft subsiding to 12 ft in the
afternoon. Snow.
.THU NIGHT...S wind 45 kt. Seas 16 ft.
.FRI...S wind 45 kt. Seas 21 ft.
.FRI NIGHT...SW wind 30 kt. Seas 18 ft.
.SAT THROUGH SUN...NW wind 30 kt. Seas 14 ft.
.MON...W wind 25 kt. Seas 10 ft.

$$

PKZ179-021315-
Pribilof Islands Near Shore Waters-
336 PM AKST Wed Mar 1 2023

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...W wind 25 kt becoming SE after midnight. Seas 13 ft.
Freezing spray. Snow.
.THU...SW wind 20 kt becoming N 30 kt in the afternoon. Seas 10 ft
building to 16 ft in the afternoon. Freezing spray. Snow showers.
.THU NIGHT...NW wind 25 kt. Seas 16 ft. Freezing spray.
.FRI AND FRI NIGHT...S wind 30 kt. Seas 12 ft.
.SAT...SE wind 40 kt. Seas 20 ft.
.SUN...SE wind 35 kt. Seas 20 ft.
.MON...E wind 15 kt. Seas 8 ft.

$$

PKZ180-021315-
Kuskokwim Delta and Etolin Strait-
336 PM AKST Wed Mar 1 2023

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...W wind 45 kt becoming NW 35 kt after midnight. Seas in
ice free waters 18 ft. Extreme freezing spray at a rate of 4 cm per 
hour or greater may rapidly accumulate on vessels near the ice edge.
.THU...N wind 20 kt. Seas in ice free waters 8 ft. Heavy freezing
spray.
.THU NIGHT...N wind 25 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 near the ice edge.
.FRI...NW wind 25 kt. Seas in ice free waters 9 ft.
.FRI NIGHT...S wind 25 kt. Seas in ice free waters 7 ft.
.SAT THROUGH SUN...SE wind 40 kt. Seas in ice free waters 11 ft.
.MON...SE wind 30 kt. Seas in ice free waters 9 ft.

$$

PKZ181-021315-
North and West of Nunivak Island-
336 PM AKST Wed Mar 1 2023

...BRISK WIND ADVISORY TONIGHT...

.TONIGHT...W wind 30 kt becoming NW 15 kt after midnight.
.THU...NE wind 15 kt.
.THU NIGHT...SW wind 15 kt.
.FRI...NE wind 20 kt.
.FRI NIGHT...S wind 30 kt.
.SAT THROUGH SUN...SE wind 40 kt.
.MON...SE wind 20 kt.

$$

PKZ185-021315-
Saint Matthew Island Waters-
336 PM AKST Wed Mar 1 2023

...HEAVY FREEZING SPRAY WARNING THROUGH THURSDAY NIGHT...
...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...NW wind 25 kt E of Saint Matthew Island... NE 20 kt W
of Saint Matthew Island. Seas in ice free waters 7 ft. Heavy 
freezing spray.
.THU...E of Saint Matthew Island, NE wind 20 kt. W of Saint
Matthew Island, NE wind 20 kt becoming N 30 kt in the afternoon. 
Seas in ice free waters 8 ft. Heavy freezing spray.
.THU NIGHT...E of Saint Matthew Island, NW wind 20 kt. W of Saint
Matthew Island, NW wind 30 kt diminishing to 20 kt after midnight.
Seas in ice free waters 12 ft. Heavy freezing spray.
.FRI...E wind 40 kt. Seas in ice free waters 12 ft.
.FRI NIGHT...S wind 40 kt. Seas in ice free waters 23 ft.
.SAT...SE wind 35 kt. Seas in ice free waters 20 ft.
.SUN...SW wind 35 kt. Seas in ice free waters 14 ft.
.MON...N wind 20 kt. Seas in ice free waters 8 ft.

$$
881 
FZAK52 PAFC 020045 AAA
CWFALU

Coastal Waters Forecast...UPDATED
National Weather Service Anchorage AK
345 PM AKST Wed Mar 1 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.

PKZ199-021330-
345 PM AKST Wed Mar 1 2023
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 990 mb low 125 nm North of Attu moves to 30 nm North of Cold 
Bay at 1003 mb Thu morning and dissipates Thu afternoon. Its front 
moves over the Aleutians Thu morning, then South of the Alaska 
Peninsula Thu afternoon. A 992 mb North Pacific low approaches the 
Western Aleutians Fri afternoon.

$$

PKZ150-021330-
South of the AK Peninsula Sitkinak to Castle Cape-
345 PM AKST Wed Mar 1 2023

...STORM WARNING TONIGHT...

.TONIGHT...W wind 50 kt. Seas 24 ft. Freezing spray. 
.THU...W wind 45 kt becoming NW 30 kt in the afternoon. Seas
20 ft subsiding to 14 ft in the afternoon. Freezing spray in the
morning. Widespread snow showers. 
.THU NIGHT...NW wind 30 kt increasing to 40 kt after midnight.
Seas 16 ft. Freezing spray. 
.FRI...NW wind 45 kt. Seas 18 ft. 
.FRI NIGHT...NW wind 40 kt. Seas 14 ft. 
.SAT...SW wind 25 kt. Seas 8 ft. 
.SUN THROUGH MON...SE wind 25 kt. Seas 13 ft.

$$

PKZ155-021330-
South of the AK Peninsula Castle Cape to Cape Sarichef-
345 PM AKST Wed Mar 1 2023

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...W wind 40 kt diminishing to 30 kt after midnight. From
the Shumagin Islands E, W wind 45 kt. Seas 21 ft. 
.THU...W wind 40 kt. Seas 20 ft. Widespread snow and rain
showers. 
.THU NIGHT...NW wind 40 kt diminishing to 30 kt after midnight.
From the Shumagin Islands E, NW wind 35 kt. Seas 20 ft. 
.FRI...NW wind 35 kt. Seas 16 ft. 
.FRI NIGHT...W wind 30 kt. Seas 9 ft. 
.SAT THROUGH SUN...SE wind 35 kt. Seas 18 ft. 
.MON...SE wind 30 kt. Seas 18 ft.

$$

PKZ160-021330-
Bristol Bay-
345 PM AKST Wed Mar 1 2023

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...W wind 45 kt. Seas in ice free waters 16 ft. Heavy 
freezing spray. 
.THU...NW wind 25 kt becoming N 15 kt in the afternoon. Seas in
ice free waters 11 ft subsiding to 6 ft in the afternoon. Heavy 
freezing spray. 
.THU NIGHT...NW wind 20 kt increasing to 30 kt after midnight.
Seas in ice free waters 5 ft building to 8 ft after midnight.
Heavy freezing spray. 
.FRI...NW wind 30 kt. Seas in ice free waters 9 ft. 
.FRI NIGHT...NE wind 20 kt. Seas in ice free waters 6 ft. 
.SAT...E wind 25 kt. Seas in ice free waters 4 ft. 
.SUN THROUGH MON...SE wind 30 kt. Seas in ice free waters 5 ft.

$$

PKZ165-021330-
Port Heiden to Cape Sarichef-
345 PM AKST Wed Mar 1 2023

...GALE WARNING TONIGHT...

.TONIGHT...W wind 40 kt becoming SW 25 kt after midnight. From
Port Moller E, W wind 45 kt diminishing to 35 kt after midnight. 
Seas 22 ft. Freezing spray. 
.THU...SW wind 30 kt except SE 15 kt from Port Moller E. Seas
15 ft except 11 ft from Port Moller E. Snow and rain showers. 
.THU NIGHT...N wind 30 kt. Seas 17 ft except 12 ft from Port
Moller E. Freezing spray. 
.FRI...NW wind 25 kt. Seas 13 ft. 
.FRI NIGHT...SW wind 20 kt. Seas 9 ft. 
.SAT THROUGH SUN...SE wind 35 kt. Seas 11 ft. 
.MON...SE wind 30 kt. Seas 7 ft.

$$

PKZ170-021330-
Cape Sarichef to Nikolski Bering Side-
345 PM AKST Wed Mar 1 2023

...STORM WARNING THURSDAY...

.TONIGHT...SW wind 35 kt. Seas 19 ft. Snow and rain. 
.THU...W wind 50 kt. Seas 27 ft. Widespread snow and rain
showers. 
.THU NIGHT...NW wind 45 kt diminishing to 25 kt after midnight.
Seas 26 ft subsiding to 18 ft after midnight. 
.FRI...SW wind 20 kt. Seas 13 ft. 
.FRI NIGHT...S wind 30 kt. Seas 9 ft. 
.SAT...SE wind 40 kt. Seas 14 ft. 
.SUN...SE wind 35 kt. Seas 14 ft. 
.MON...SE wind 25 kt. Seas 8 ft.

$$

PKZ171-021330-
Unalaska Bay-
345 PM AKST Wed Mar 1 2023

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...W wind 30 kt becoming SW 25 kt after midnight. Seas
5 ft. Snow and rain. 
.THU...W wind 45 kt. Seas 7 ft. Widespread snow and rain showers.
.THU NIGHT...NW wind 45 kt diminishing to 25 kt after midnight.
Seas 10 ft subsiding to 5 ft after midnight. 
.FRI...SW wind 20 kt. Seas 3 ft. 
.FRI NIGHT...S wind 25 kt. Seas 3 ft. 
.SAT...SE wind 30 kt. Seas 5 ft. 
.SUN...SE wind 25 kt. Seas 4 ft. 
.MON...SE wind 15 kt. Seas 2 ft.

$$

PKZ172-021330-
Cape Sarichef to Nikolski Pacific Side-
345 PM AKST Wed Mar 1 2023

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...W wind 30 kt becoming SW 40 kt after midnight. Seas
17 ft. Snow and rain. 
.THU...W wind 45 kt. Seas 23 ft. Snow showers and rain showers. 
.THU NIGHT...NW wind 45 kt diminishing to 35 kt after midnight.
Seas 22 ft. 
.FRI...W wind 20 kt. Seas 11 ft. 
.FRI NIGHT...S wind 30 kt. Seas 7 ft. 
.SAT...SE wind 40 kt. Seas 23 ft. 
.SUN...SE wind 35 kt. Seas 23 ft. 
.MON...SE wind 30 kt. Seas 19 ft.

$$

PKZ173-021330-
Nikolski to Seguam Island Bering Side-
345 PM AKST Wed Mar 1 2023

...STORM WARNING THURSDAY...

.TONIGHT...SW wind 45 kt. Seas 14 ft building to 19 ft after
midnight. Widespread snow and rain showers. 
.THU...W wind 50 kt. Seas 29 ft. 
.THU NIGHT...NW wind 40 kt becoming W 20 kt after midnight. Seas
23 ft subsiding to 16 ft after midnight. 
.FRI...SW wind 25 kt. Seas 11 ft. 
.FRI NIGHT...SE wind 35 kt. Seas 12 ft. 
.SAT...SE wind 45 kt. Seas 22 ft. 
.SUN...SE wind 25 kt. Seas 16 ft. 
.MON...SE wind 15 kt. Seas 9 ft.

$$

PKZ174-021330-
Nikolski to Seguam Island Pacific Side-
345 PM AKST Wed Mar 1 2023

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 35 kt increasing to 45 kt after midnight. Seas
21 ft. Rain and snow. 
.THU...W wind 45 kt. Seas 23 ft. 
.THU NIGHT...NW wind 35 kt becoming W 20 kt after midnight. Seas
21 ft subsiding to 14 ft after midnight. 
.FRI...S wind 20 kt. Seas 11 ft. 
.FRI NIGHT...SE wind 35 kt. Seas 14 ft. 
.SAT...SE wind 45 kt. Seas 24 ft. 
.SUN...SE wind 25 kt. Seas 19 ft. 
.MON...SE wind 15 kt. Seas 12 ft.

$$

PKZ175-021330-
Seguam Island to Adak Bering Side-
345 PM AKST Wed Mar 1 2023

...STORM WARNING TONIGHT...

.TONIGHT...SW wind 40 kt becoming W 50 kt after midnight. Seas
15 ft building to 25 ft after midnight. Rain and snow. 
.THU...W wind 45 kt. Seas 26 ft. 
.THU NIGHT...W wind 25 kt. Seas 16 ft. 
.FRI...S wind 30 kt. Seas 9 ft. 
.FRI NIGHT...SE wind 35 kt. Seas 11 ft. 
.SAT...S wind 40 kt. Seas 16 ft. 
.SUN...W wind 20 kt. Seas 10 ft. 
.MON...NW wind 25 kt. Seas 12 ft.

$$

PKZ176-021330-
Seguam Island to Adak Pacific Side-
345 PM AKST Wed Mar 1 2023

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SW wind 40 kt. Seas 21 ft. Rain and snow. 
.THU...W wind 40 kt. Seas 20 ft. 
.THU NIGHT...W wind 25 kt. Seas 13 ft. 
.FRI...S wind 20 kt. Seas 8 ft. 
.FRI NIGHT...SE wind 40 kt. Seas 19 ft. 
.SAT...S wind 40 kt. Seas 24 ft. 
.SUN...SW wind 20 kt. Seas 17 ft. 
.MON...NW wind 20 kt. Seas 11 ft.

$$

PKZ177-021330-
Adak to Kiska-
345 PM AKST Wed Mar 1 2023

...STORM WARNING TONIGHT...

.TONIGHT...SW wind 50 kt. Seas 23 ft. 
.THU...W wind 35 kt diminishing to 25 kt in the afternoon. Seas
20 ft subsiding to 15 ft in the afternoon. 
.THU NIGHT...S wind 35 kt. Seas 11 ft. 
.FRI...S wind 35 kt. Seas 11 ft. 
.FRI NIGHT...SE wind 30 kt. Seas 13 ft. 
.SAT THROUGH SUN...NW wind 25 kt. Seas 16 ft. 
.MON...NW wind 25 kt. Seas 12 ft.

$$

PKZ178-021330-
Kiska to Attu-
345 PM AKST Wed Mar 1 2023

...STORM WARNING TONIGHT...

.TONIGHT...W wind 50 kt diminishing to 35 kt after midnight. Seas
22 ft. 
.THU...W wind 30 kt. Seas 17 ft subsiding to 12 ft in the
afternoon. Snow. 
.THU NIGHT...S wind 45 kt. Seas 16 ft. 
.FRI...S wind 45 kt. Seas 21 ft. 
.FRI NIGHT...SW wind 30 kt. Seas 18 ft. 
.SAT THROUGH SUN...NW wind 30 kt. Seas 14 ft. 
.MON...W wind 25 kt. Seas 10 ft.

$$

PKZ179-021330-
Pribilof Islands Near Shore Waters-
345 PM AKST Wed Mar 1 2023

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...W wind 25 kt becoming SE after midnight. Seas 13 ft.
Freezing spray. Snow. 
.THU...SW wind 20 kt becoming N 30 kt in the afternoon. Seas
10 ft building to 16 ft in the afternoon. Freezing spray. Snow
showers. 
.THU NIGHT...NW wind 25 kt. Seas 16 ft. Freezing spray. 
.FRI AND FRI NIGHT...S wind 30 kt. Seas 12 ft. 
.SAT...SE wind 40 kt. Seas 20 ft. 
.SUN...SE wind 35 kt. Seas 20 ft. 
.MON...E wind 15 kt. Seas 8 ft.

$$

PKZ180-021330-
Kuskokwim Delta and Etolin Strait-
345 PM AKST Wed Mar 1 2023

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...W wind 45 kt becoming NW 35 kt after midnight. Seas in
ice free waters 18 ft. Extreme freezing spray at a rate of 4 cm
per hour or greater may rapidly accumulate on vessels near the 
ice edge. 
.THU...N wind 20 kt. Seas in ice free waters 8 ft. Heavy freezing
spray. 
.THU NIGHT...N wind 25 kt. Seas in ice free waters 9 ft. Heavy
freezing Spray.
.FRI...NW wind 25 kt. Seas in ice free waters 9 ft. 
.FRI NIGHT...S wind 25 kt. Seas in ice free waters 7 ft. 
.SAT THROUGH SUN...SE wind 40 kt. Seas in ice free waters 11 ft. 
.MON...SE wind 30 kt. Seas in ice free waters 9 ft.

$$

PKZ181-021330-
North and West of Nunivak Island-
345 PM AKST Wed Mar 1 2023

...BRISK WIND ADVISORY TONIGHT...

.TONIGHT...W wind 30 kt becoming NW 15 kt after midnight. 
.THU...NE wind 15 kt. 
.THU NIGHT...SW wind 15 kt. 
.FRI...NE wind 20 kt. 
.FRI NIGHT...S wind 30 kt. 
.SAT THROUGH SUN...SE wind 40 kt. 
.MON...SE wind 20 kt.

$$

PKZ185-021330-
Saint Matthew Island Waters-
345 PM AKST Wed Mar 1 2023

...HEAVY FREEZING SPRAY WARNING THROUGH THURSDAY NIGHT...
...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...NW wind 25 kt E of Saint Matthew Island... NE 20 kt W
of Saint Matthew Island. Seas in ice free waters 7 ft. Heavy 
freezing spray. 
.THU...E of Saint Matthew Island, NE wind 20 kt. W of Saint
Matthew Island, NE wind 20 kt becoming N 30 kt in the afternoon. 
Seas in ice free waters 8 ft. Heavy freezing spray. 
.THU NIGHT...E of Saint Matthew Island, NW wind 20 kt. W of Saint
Matthew Island, NW wind 30 kt diminishing to 20 kt after
midnight. Seas in ice free waters 12 ft. Heavy freezing spray. 
.FRI...E wind 40 kt. Seas in ice free waters 12 ft. 
.FRI NIGHT...S wind 40 kt. Seas in ice free waters 23 ft. 
.SAT...SE wind 35 kt. Seas in ice free waters 20 ft. 
.SUN...SW wind 35 kt. Seas in ice free waters 14 ft. 
.MON...N wind 20 kt. Seas in ice free waters 8 ft.

$$
623 
FZAK52 PAFC 021221
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
321 AM AKST Thu Mar 2 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.

PKZ199-030115-
321 AM AKST Thu Mar 2 2023
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 992 mb low 220 nm W of Saint Paul moves over the Pribilof 
Islands later this morning. It then dives southeastward across the
Alaska Peninsula and into the N Pacific as an open wave trough 
later this evening. A Kamchatka low brings a front across the 
Western and Central Aleutians through Sat morning.

$$

PKZ150-030115-
South of the AK Peninsula Sitkinak to Castle Cape-
321 AM AKST Thu Mar 2 2023

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

.TODAY...W wind 40 kt becoming NW 30 kt in the afternoon. Seas 20
ft subsiding to 14 ft in the afternoon. Freezing spray. Widespread 
snow.
.TONIGHT...NW wind 35 kt. Seas 15 ft. Heavy freezing spray.
.FRI...NW wind 40 kt. Seas 18 ft. Heavy freezing spray.
.FRI NIGHT...NW wind 40 kt. Seas 15 ft.
.SAT...W wind 30 kt. Seas 8 ft.
.SUN THROUGH MON...SE wind 30 kt. Seas 14 ft.

$$

PKZ155-030115-
South of the AK Peninsula Castle Cape to Cape Sarichef-
321 AM AKST Thu Mar 2 2023

...GALE WARNING THROUGH FRIDAY...

.TODAY...W wind 40 kt. Seas 20 ft. Snow and rain.
.TONIGHT...NW wind 40 kt diminishing to 30 kt after midnight. From
the Shumagin Islands E, NW wind 30 kt. Seas 20 ft.
.FRI...NW wind 35 kt. Seas 15 ft. Freezing spray.
.FRI NIGHT...W wind 25 kt. Seas 9 ft.
.SAT THROUGH MON...SE wind 35 kt. Seas 17 ft.

$$

PKZ160-030115-
Bristol Bay-
321 AM AKST Thu Mar 2 2023

...HEAVY FREEZING SPRAY WARNING THROUGH FRIDAY...
...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...NW wind 25 kt becoming N 15 kt in the afternoon. Seas in
ice free waters 10 ft subsiding to 6 ft in the afternoon. Heavy
freezing spray.
.TONIGHT...NW wind 20 kt increasing to 30 kt after midnight. Seas
in ice free waters 5 ft building to 8 ft after midnight. Heavy 
freezing spray.
.FRI...NW wind 30 kt. Seas in ice free waters 10 ft. Heavy
freezing spray.
.FRI NIGHT...N wind 25 kt. Seas in ice free waters 6 ft.
.SAT...E wind 25 kt. Seas in ice free waters 4 ft.
.SUN THROUGH MON...SE wind 30 kt. Seas in ice free waters 6 ft.

$$

PKZ165-030115-
Port Heiden to Cape Sarichef-
321 AM AKST Thu Mar 2 2023

...HEAVY FREEZING SPRAY WARNING TONIGHT AND FRIDAY...
...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...SW wind 30 kt except E 20 kt from Port Moller E. Seas 16
ft except 12 ft from Port Moller E. Snow and rain showers.
.TONIGHT...NW wind 25 kt. Seas 18 ft except 13 ft from Port Moller
E. Heavy freezing spray.
.FRI...NW wind 25 kt. Seas 14 ft. Heavy freezing spray.
.FRI NIGHT...S wind 20 kt. Seas 9 ft.
.SAT...SE wind 40 kt. Seas 10 ft.
.SUN THROUGH MON...SE wind 35 kt. Seas 9 ft.

$$

PKZ170-030115-
Cape Sarichef to Nikolski Bering Side-
321 AM AKST Thu Mar 2 2023

...STORM WARNING TODAY...

.TODAY...W wind 50 kt. Seas 27 ft. Widespread snow and rain
showers.
.TONIGHT...NW wind 45 kt diminishing to 25 kt after midnight. Seas
27 ft subsiding to 20 ft after midnight.
.FRI...W wind 20 kt. Seas 14 ft.
.FRI NIGHT...S wind 35 kt. Seas 9 ft.
.SAT...SE wind 40 kt. Seas 14 ft.
.SUN...SE wind 35 kt. Seas 13 ft.
.MON...S wind 25 kt. Seas 9 ft.

$$

PKZ171-030115-
Unalaska Bay-
321 AM AKST Thu Mar 2 2023

...GALE WARNING THROUGH TONIGHT...

.TODAY...W wind 45 kt. Seas 7 ft. Widespread snow and rain showers.
.TONIGHT...W wind 45 kt becoming NW 30 kt after midnight. Seas
16 ft.
.FRI...W wind 20 kt becoming SW 10 kt in the afternoon. Seas 3 ft.
.FRI NIGHT...S wind 30 kt. Seas 5 ft.
.SAT...SE wind 35 kt. Seas 5 ft.
.SUN...SE wind 25 kt. Seas 3 ft.
.MON...S wind 10 kt. Seas 2 ft.

$$

PKZ172-030115-
Cape Sarichef to Nikolski Pacific Side-
321 AM AKST Thu Mar 2 2023

...GALE WARNING THROUGH TONIGHT...

.TODAY...W wind 45 kt. Seas 22 ft. Snow showers and rain showers.
.TONIGHT...W wind 45 kt becoming NW 35 kt after midnight. Seas
22 ft.
.FRI...NW wind 20 kt. Seas 12 ft.
.FRI NIGHT...S wind 35 kt. Seas 8 ft.
.SAT...SE wind 40 kt. Seas 22 ft.
.SUN...SE wind 35 kt. Seas 22 ft.
.MON...S wind 25 kt. Seas 15 ft.

$$

PKZ173-030115-
Nikolski to Seguam Island Bering Side-
321 AM AKST Thu Mar 2 2023

...STORM WARNING TODAY...

.TODAY...W wind 50 kt. Seas 29 ft.
.TONIGHT...NW wind 40 kt becoming W 20 kt after midnight. Seas 23
ft subsiding to 16 ft after midnight.
.FRI...S wind 25 kt. Seas 12 ft.
.FRI NIGHT...SE wind 40 kt. Seas 14 ft.
.SAT...SE wind 45 kt. Seas 22 ft.
.SUN...S wind 20 kt. Seas 15 ft.
.MON...SW wind 15 kt. Seas 10 ft.

$$

PKZ174-030115-
Nikolski to Seguam Island Pacific Side-
321 AM AKST Thu Mar 2 2023

...GALE WARNING THROUGH TONIGHT...

.TODAY...W wind 45 kt. Seas 23 ft.
.TONIGHT...NW wind 35 kt becoming W 25 kt after midnight. Seas 20
ft subsiding to 14 ft after midnight.
.FRI...SW wind 15 kt becoming S 25 kt in the afternoon. Seas 11
ft.
.FRI NIGHT...SE wind 40 kt. Seas 15 ft.
.SAT...SE wind 45 kt. Seas 25 ft.
.SUN...SW wind 20 kt. Seas 18 ft.
.MON...SW wind 20 kt. Seas 11 ft.

$$

PKZ175-030115-
Seguam Island to Adak Bering Side-
321 AM AKST Thu Mar 2 2023

...GALE WARNING TODAY...

.TODAY...W wind 45 kt. Seas 26 ft.
.TONIGHT...W wind 25 kt. Seas 16 ft.
.FRI...S wind 25 kt. Seas 9 ft.
.FRI NIGHT...SE wind 40 kt. Seas 14 ft.
.SAT...S wind 45 kt. Seas 17 ft.
.SUN...SW wind 20 kt. Seas 10 ft.
.MON...W wind 25 kt. Seas 10 ft.

$$

PKZ176-030115-
Seguam Island to Adak Pacific Side-
321 AM AKST Thu Mar 2 2023

...GALE WARNING TODAY...

.TODAY...W wind 40 kt. Seas 21 ft.
.TONIGHT...W wind 25 kt becoming SW 15 kt after midnight. Seas
13 ft.
.FRI...SE wind 25 kt. Seas 8 ft.
.FRI NIGHT...SE wind 45 kt. Seas 22 ft.
.SAT...S wind 45 kt. Seas 24 ft.
.SUN...SW wind 20 kt. Seas 16 ft.
.MON...W wind 20 kt. Seas 9 ft.

$$

PKZ177-030115-
Adak to Kiska-
321 AM AKST Thu Mar 2 2023

...GALE WARNING THROUGH TONIGHT...

.TODAY...W wind 35 kt diminishing to 25 kt in the afternoon. Seas
19 ft.
.TONIGHT...S wind 35 kt. Seas 11 ft.
.FRI...S wind 30 kt. Seas 11 ft.
.FRI NIGHT...SE wind 30 kt. Seas 13 ft.
.SAT THROUGH SUN...W wind 30 kt. Seas 15 ft.
.MON...W wind 30 kt. Seas 11 ft.

$$

PKZ178-030115-
Kiska to Attu-
321 AM AKST Thu Mar 2 2023

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...W wind 30 kt. Seas 16 ft.
.TONIGHT...S wind 40 kt. Seas 16 ft. Snow.
.FRI...S wind 45 kt. Seas 21 ft.
.FRI NIGHT...W wind 30 kt. Seas 19 ft.
.SAT THROUGH SUN...NW wind 25 kt. Seas 14 ft.
.MON...SW wind 25 kt. Seas 10 ft.

$$

PKZ179-030115-
Pribilof Islands Near Shore Waters-
321 AM AKST Thu Mar 2 2023

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...SW wind 25 kt becoming N in the afternoon. Seas 9 ft
building to 16 ft in the afternoon. Freezing spray. Snow.
.TONIGHT...NW wind 25 kt. Seas 18 ft. Freezing spray.
.FRI...W wind 15 kt becoming S 25 kt in the afternoon. Seas 11 ft.
Freezing spray.
.FRI NIGHT...S wind 30 kt. Seas 12 ft.
.SAT...SE wind 45 kt. Seas 21 ft.
.SUN...SE wind 30 kt. Seas 19 ft.
.MON...Variable wind 10 kt. Seas 6 ft.

$$

PKZ180-030115-
Kuskokwim Delta and Etolin Strait-
321 AM AKST Thu Mar 2 2023

...HEAVY FREEZING SPRAY WARNING THROUGH FRIDAY...
...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...N wind 20 kt. Seas in ice free waters 8 ft. Heavy
freezing spray.
.TONIGHT...N wind 25 kt. Seas in ice free waters 10 ft. Heavy
freezing spray.
.FRI...NW wind 20 kt. Seas in ice free waters 9 ft. Heavy freezing
spray.
.FRI NIGHT...SE wind 30 kt. Seas in ice free waters 7 ft.
.SAT THROUGH SUN...SE wind 40 kt. Seas in ice free waters 13 ft.
.MON...SE wind 35 kt. Seas in ice free waters 10 ft.

$$

PKZ181-030115-
North and West of Nunivak Island-
321 AM AKST Thu Mar 2 2023

.TODAY...NE wind 15 kt.
.TONIGHT...Variable wind 10 kt becoming SW 20 kt after midnight.
.FRI...NW wind 20 kt becoming E in the afternoon.
.FRI NIGHT...SE wind 35 kt.
.SAT THROUGH SUN...SE wind 40 kt.
.MON...SE wind 25 kt.

$$

PKZ185-030115-
Saint Matthew Island Waters-
321 AM AKST Thu Mar 2 2023

...GALE WARNING FRIDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH FRIDAY...

.TODAY...NE wind 25 kt E of Saint Matthew Island...E 30 kt W of
Saint Matthew Island. Seas in ice free waters 9 ft. Heavy freezing
spray.
.TONIGHT...E of Saint Matthew Island, W wind 20 kt. W of Saint
Matthew Island, W wind 30 kt becoming NW 20 kt after midnight.
Seas in ice free waters 12 ft. Heavy freezing spray.
.FRI...E of Saint Matthew Island, N wind 15 kt becoming SE 35 kt
in the afternoon. W of Saint Matthew Island, SE wind 45 kt. Seas in 
ice free waters 13 ft. Heavy freezing spray. Snow.
.FRI NIGHT...S wind 40 kt. Seas in ice free waters 22 ft.
.SAT...SE wind 40 kt. Seas in ice free waters 20 ft.
.SUN...W wind 40 kt. Seas in ice free waters 18 ft.
.MON...N wind 25 kt. Seas in ice free waters 9 ft.

$$
314 
FZAK52 PAFC 030014
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
314 PM AKST Thu Mar 2 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.

PKZ199-031330-
314 PM AKST Thu Mar 2 2023
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A ridge moves across the Bering through Sat morning. A 994 mb 
South Kamchatka low moves to the North Kamchatka Coast at 993 mb 
and dissipates Sat afternoon. Its front moves over the Bering 
through Sat afternoon. A 999 mb North Pacific low moves to 160 nm 
North of Adak at 983 mb for Sat afternoon.

$$

PKZ150-031330-
South of the AK Peninsula Sitkinak to Castle Cape-
314 PM AKST Thu Mar 2 2023

...GALE WARNING THROUGH FRIDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND FRIDAY...

.TONIGHT...NW wind 30 kt increasing to 40 kt after midnight. Seas
15 ft. Heavy freezing spray.
.FRI...NW wind 45 kt. Seas 18 ft. Heavy freezing spray.
.FRI NIGHT...NW wind 45 kt diminishing to 35 kt after midnight.
Seas 15 ft. Freezing spray.
.SAT...NW wind 30 kt. Seas 8 ft.
.SAT NIGHT...S wind 20 kt. Seas 5 ft.
.SUN THROUGH MON...SE wind 30 kt. Seas 14 ft.
.TUE...SE wind 25 kt. Seas 14 ft.

$$

PKZ155-031330-
South of the AK Peninsula Castle Cape to Cape Sarichef-
314 PM AKST Thu Mar 2 2023

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...NW wind 40 kt diminishing to 30 kt after midnight. From
the Shumagin Islands E, NW wind 30 kt. Seas 21 ft.
.FRI...NW wind 35 kt. Seas 14 ft. Freezing spray.
.FRI NIGHT...NW wind 25 kt becoming W 15 kt after midnight. Seas
9 ft.
.SAT...SE wind 30 kt. Seas 7 ft.
.SAT NIGHT...SE wind 35 kt. Seas 15 ft.
.SUN THROUGH MON...SE wind 35 kt. Seas 18 ft.
.TUE...E wind 20 kt. Seas 13 ft.

$$

PKZ160-031330-
Bristol Bay-
314 PM AKST Thu Mar 2 2023

...HEAVY FREEZING SPRAY WARNING THROUGH FRIDAY NIGHT...
...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TONIGHT...NW wind 20 kt increasing to 30 kt after midnight. Seas
in ice free waters 7 ft. Heavy freezing spray.
.FRI...NW wind 30 kt. Seas in ice free waters 9 ft. Heavy freezing
spray.
.FRI NIGHT...NW wind 20 kt becoming NE 10 kt after midnight. Seas
in ice free waters 6 ft. Heavy freezing spray.
.SAT...E wind 20 kt. Seas in ice free waters 4 ft.
.SAT NIGHT...E wind 25 kt. Seas in ice free waters 4 ft.
.SUN THROUGH MON...SE wind 30 kt. Seas in ice free waters 6 ft.
.TUE...E wind 20 kt. Seas in ice free waters 4 ft.

$$

PKZ165-031330-
Port Heiden to Cape Sarichef-
314 PM AKST Thu Mar 2 2023

...HEAVY FREEZING SPRAY WARNING TONIGHT AND FRIDAY...
...SMALL CRAFT ADVISORY THROUGH FRIDAY NIGHT...

.TONIGHT...N wind 25 kt. Seas 18 ft except 13 ft from Port Moller
E. Heavy freezing spray.
.FRI...NW wind 25 kt. Seas 13 ft. Heavy freezing spray.
.FRI NIGHT...SE wind 20 kt. Seas 9 ft.
.SAT...SE wind 35 kt. Seas 8 ft.
.SAT NIGHT...SE wind 40 kt. Seas 10 ft.
.SUN THROUGH MON...SE wind 35 kt. Seas 9 ft.
.TUE...E wind 15 kt. Seas 7 ft.

$$

PKZ170-031330-
Cape Sarichef to Nikolski Bering Side-
314 PM AKST Thu Mar 2 2023

...STORM WARNING TONIGHT... 

.TONIGHT...NW wind 50 kt diminishing to 30 kt after midnight. 
Seas 25 ft subsiding to 19 ft after midnight.
.FRI...W wind 20 kt. Seas 14 ft.
.FRI NIGHT...S wind 25 kt becoming SE 35 kt after midnight. 
Seas 9 ft.
.SAT AND SAT NIGHT...SE wind 45 kt. Seas 14 ft.
.SUN...SE wind 35 kt. Seas 11 ft.
.MON...S wind 25 kt. Seas 9 ft.
.TUE...NW wind 15 kt. Seas 10 ft.

$$

PKZ171-031330-
Unalaska Bay-
314 PM AKST Thu Mar 2 2023

...GALE WARNING TONIGHT...

.TONIGHT...W wind 45 kt becoming NW 35 kt after midnight. Gusts to
55 kt before midnight. Seas 7 ft building to 16 ft after midnight.
.FRI...W wind 20 kt becoming S 10 kt in the afternoon. Seas 3 ft.
.FRI NIGHT...SE wind 25 kt. Seas 4 ft.
.SAT...SE wind 30 kt. Seas 5 ft.
.SAT NIGHT...SE wind 35 kt. Seas 5 ft.
.SUN...SE wind 25 kt. Seas 3 ft.
.MON...S wind 10 kt. Seas 2 ft.
.TUE...NW wind 10 kt. Seas 3 ft.

$$

PKZ172-031330-
Cape Sarichef to Nikolski Pacific Side-
314 PM AKST Thu Mar 2 2023

...GALE WARNING TONIGHT...

.TONIGHT...W wind 45 kt becoming NW 35 kt after midnight. Seas
21 ft.
.FRI...NW wind 25 kt becoming SW 15 kt in the afternoon. Seas 12
ft subsiding to 7 ft in the afternoon.
.FRI NIGHT...SE wind 30 kt. Seas 8 ft.
.SAT...SE wind 40 kt. Seas 18 ft.
.SAT NIGHT...SE wind 45 kt. Seas 23 ft.
.SUN...SE wind 35 kt. Seas 21 ft.
.MON...S wind 25 kt. Seas 15 ft.
.TUE...NW wind 15 kt. Seas 16 ft.

$$

PKZ173-031330-
Nikolski to Seguam Island Bering Side-
314 PM AKST Thu Mar 2 2023

...GALE WARNING TONIGHT AND FRIDAY NIGHT...

.TONIGHT...NW wind 40 kt becoming W 20 kt after midnight. Seas 22
ft subsiding to 16 ft after midnight.
.FRI...S wind 25 kt. Seas 11 ft.
.FRI NIGHT...SE wind 30 kt increasing to 40 kt after midnight.
Seas 9 ft building to 14 ft after midnight.
.SAT AND SAT NIGHT...S wind 45 kt. Seas 23 ft.
.SUN...Variable wind 10 kt. Seas 12 ft.
.MON...SW wind 15 kt. Seas 10 ft.
.TUE...NW wind 15 kt. Seas 12 ft.

$$

PKZ174-031330-
Nikolski to Seguam Island Pacific Side-
314 PM AKST Thu Mar 2 2023

...GALE WARNING TONIGHT AND FRIDAY NIGHT...

.TONIGHT...NW wind 35 kt diminishing to 25 kt after midnight. Seas
19 ft subsiding to 14 ft after midnight.
.FRI...S wind 15 kt becoming SE 25 kt in the afternoon. Seas 10
ft.
.FRI NIGHT...SE wind 40 kt. Seas 9 ft building to 15 ft after
midnight.
.SAT AND SAT NIGHT...S wind 45 kt. Seas 26 ft.
.SUN...W wind 15 kt. Seas 16 ft.
.MON...SW wind 20 kt. Seas 11 ft.
.TUE...NW wind 15 kt. Seas 14 ft.

$$

PKZ175-031330-
Seguam Island to Adak Bering Side-
314 PM AKST Thu Mar 2 2023

...GALE WARNING FRIDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 16 ft.
.FRI...S wind 25 kt. Seas 9 ft.
.FRI NIGHT...SE wind 40 kt. Seas 9 ft building to 14 ft after
midnight. Rain.
.SAT...SE wind 45 kt. Seas 18 ft.
.SAT NIGHT...SW wind 30 kt. Seas 15 ft.
.SUN...NW wind 20 kt. Seas 9 ft.
.MON...W wind 25 kt. Seas 10 ft.
.TUE...W wind 15 kt. Seas 10 ft.

$$

PKZ176-031330-
Seguam Island to Adak Pacific Side-
314 PM AKST Thu Mar 2 2023

...GALE WARNING FRIDAY NIGHT...

.TONIGHT...W wind 25 kt becoming SW 15 kt after midnight. Seas
13 ft.
.FRI...SE wind 25 kt. Seas 8 ft.
.FRI NIGHT...SE wind 45 kt. Seas 13 ft building to 22 ft after
midnight. Rain.
.SAT...SE wind 45 kt. Seas 25 ft.
.SAT NIGHT...SW wind 30 kt. Seas 22 ft.
.SUN...W wind 20 kt. Seas 14 ft.
.MON THROUGH TUE...W wind 20 kt. Seas 10 ft.

$$

PKZ177-031330-
Adak to Kiska-
314 PM AKST Thu Mar 2 2023

...GALE WARNING TONIGHT AND FRIDAY NIGHT...

.TONIGHT...S wind 35 kt. Seas 11 ft.
.FRI...S wind 30 kt. Seas 10 ft.
.FRI NIGHT...E wind 35 kt. Bering side, seas 10 ft. Pacific side, 
seas 10 ft building to 18 ft after midnight. Rain.
.SAT...NW wind 30 kt. Seas 17 ft.
.SAT NIGHT...NW wind 25 kt. Seas 15 ft.
.SUN THROUGH MON...W wind 30 kt. Seas 12 ft.
.TUE...SW wind 20 kt. Seas 8 ft.

$$

PKZ178-031330-
Kiska to Attu-
314 PM AKST Thu Mar 2 2023

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...S wind 40 kt. Seas 16 ft. Snow.
.FRI...S wind 45 kt. Seas 21 ft.
.FRI NIGHT...SW wind 30 kt becoming NW 20 kt after midnight. Seas
19 ft subsiding to 14 ft after midnight.
.SAT AND SAT NIGHT...NW wind 25 kt. Seas 13 ft.
.SUN...NW wind 25 kt. Seas 11 ft.
.MON...SW wind 25 kt. Seas 10 ft.
.TUE...S wind 20 kt. Seas 12 ft.

$$

PKZ179-031330-
Pribilof Islands Near Shore Waters-
314 PM AKST Thu Mar 2 2023

...SMALL CRAFT ADVISORY THROUGH FRIDAY NIGHT...

.TONIGHT...NW wind 25 kt. Seas 17 ft. Freezing spray.
.FRI...SW wind 15 kt becoming S 25 kt in the afternoon. Seas 10
ft.
.FRI NIGHT...S wind 30 kt. Seas 12 ft.
.SAT...SE wind 40 kt. Seas 18 ft.
.SAT NIGHT...SE wind 45 kt. Seas 22 ft.
.SUN...SE wind 30 kt. Seas 17 ft.
.MON...Variable wind 10 kt. Seas 6 ft.
.TUE...Variable wind 10 kt. Seas 7 ft.

$$

PKZ180-031330-
Kuskokwim Delta and Etolin Strait-
314 PM AKST Thu Mar 2 2023

...HEAVY FREEZING SPRAY WARNING THROUGH FRIDAY NIGHT...
...SMALL CRAFT ADVISORY THROUGH FRIDAY NIGHT...

.TONIGHT...N wind 25 kt. Seas in ice free waters 10 ft. Heavy
freezing spray.
.FRI...NW wind 25 kt. Seas in ice free waters 9 ft. Heavy freezing
spray.
.FRI NIGHT...SE wind 30 kt. Seas in ice free waters 6 ft. Heavy
freezing spray.
.SAT...SE wind 35 kt. Seas in ice free waters 7 ft.
.SAT NIGHT...SE wind 40 kt. Seas in ice free waters 8 ft.
.SUN...SE wind 40 kt. Seas in ice free waters 9 ft.
.MON...SE wind 35 kt. Seas in ice free waters 9 ft.
.TUE...E wind 20 kt. Seas in ice free waters 6 ft.

$$

PKZ181-031330-
North and West of Nunivak Island-
314 PM AKST Thu Mar 2 2023

...BRISK WIND ADVISORY FRIDAY NIGHT...

.TONIGHT...Variable wind 10 kt becoming W 20 kt after midnight.
.FRI...NW wind 20 kt becoming SE in the afternoon.
.FRI NIGHT...SE wind 30 kt. Snow.
.SAT...S wind 35 kt.
.SAT NIGHT...SE wind 45 kt.
.SUN...SE wind 40 kt.
.MON...SE wind 25 kt.
.TUE...E wind 15 kt.

$$

PKZ185-031330-
Saint Matthew Island Waters-
314 PM AKST Thu Mar 2 2023

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

.TONIGHT...E of Saint Matthew Island, SW wind 15 kt becoming W 25
kt after midnight. W of Saint Matthew Island, W wind 30 kt becoming 
NW 20 kt after midnight. Seas in ice free waters 12 ft. Heavy 
freezing spray.
.FRI...E of Saint Matthew Island, N wind 15 kt becoming SE 35 kt
in the afternoon. W of Saint Matthew Island, E wind 40 kt. Seas in 
ice free waters 12 ft. Heavy freezing spray. Snow.
.FRI NIGHT...S wind 35 kt E of Saint Matthew Island... S 40 kt W
of Saint Matthew Island. Seas in ice free waters 21 ft.
.SAT AND SAT NIGHT...SE wind 40 kt. Seas in ice free waters 19 ft.
.SUN...W wind 35 kt. Seas in ice free waters 17 ft.
.MON...N wind 25 kt. Seas in ice free waters 9 ft.
.TUE...SE wind 15 kt. Seas in ice free waters 7 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 Feb 28, 5:46 PM AKST, 9 hours 52 minutes earlier.

Area forecast discussion, Feb 28, 5:46 PM AKST, 9 hours 52 minutes before
Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
546 PM AKST Tue Feb 28 2023

.ANALYSIS AND UPPER LEVELS...

The upper level pattern continues to amplify as a strong shortwave
is developing south of the AKPen deepening the longwave trough
across the Bering and Aleutians. The jet stream continues to
bring moisture into the southern part of Alaska. Currently a front
is moving across Southcentral with light snow observed across
most of the area, but has diminished across Anchorage and the
Matanuska valley. Across the Southwest light snow and blowing
snow is occurring across the Kuskokwim Delta and the lower
Kuskokwim valley. Across the Bering and Pribilof Islands high end
gales have been observed and will continue through tomorrow.

&&

.MODEL DISCUSSION...

Models still continue to show some differences on the development
and track of the low across the Gulf tonight, but overall this
will not impact snow totals much. The biggest challenge is where
the low deepens and where the strongest winds will occur. Currently
it looks like the eastern side of Kodiak Island may briefly see
high winds as pressure rises rapidly but will then decrease fairly
quickly as the low moves northeast. However, if the low tracks a
bit farther to the east than the high winds may miss Kodiak Island
Wednesday morning. Models are in fairly good agreement with high
winds across Kodiak Island and nearby areas by Wednesday evening
into Thursday morning as colder air advection enhances the winds.

&&

.AVIATION...
PANC...Low level windshear is expected until around midnight
tonight. Winds are expected to increase tomorrow near mid-day out
of the north with gusts near 25 knots possible.Light snow will
taper off this afternoon with conditions expected to improve to
VFR as downsloping begins. Another storm is expected to move into
the Gulf Wednesday morning, which may return IFR to MVFR
visibility and ceilings with light snow.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3:
Tonight through Friday)...

A large low tracking into Western Alaska is pushing its occluded
front eastward across Southcentral this evening. The main focus
of activity is expected to be over Cook Inlet, though intermittent
periods of light snowfall will be possible across the western
Kenai Peninsula and Anchorage as moist southwesterly flow aloft
fights low-level southeasterly downsloping tonight. This will keep
snow accumulations scattered and spotty for inland locations.
Meanwhile, snow will persist along the north Gulf coast as a weak
triple point low drapes its front along the coast.

A vigorous upper-level shortwave trough will aid in the deepening
of a surface low passing south of the Alaska Peninsula this
evening. The low takes aim at Kodiak tonight, bringing another
round of precipitation which is likely to begin as rain, but could
transition back to snow. If this happens, there will be potential
for blowing snow to significantly reduce visibility as winds pick
up early Wednesday morning. The deep low passes just east of the
island and cold advection wrapping around the back side of the
low combined with pressure rises in its wake may lead to a brief
period of high winds during the morning hours. As the low tracks
into the northern Gulf, these winds subside somewhat for Kodiak,
while a storm- force barrier jet sets up along the north Gulf
coast.

As the low tracks south of the Kenai Peninsula on Wednesday
morning, a second round of steadier, heavier snow sets up across
the western Kenai Peninsula. This will combine with increased
winds, resulting in blowing snow, especially along Cook Inlet.
Blizzard-like conditions persist with gusty winds continuing to
blow through Whittier, Portage Valley, and eastern Turnagain arm,
leading to visibility as low as one quarter mile at times. These
conditions will also briefly be possible in Seward as the low
passes just to the east, drawing northerly winds through
Resurrection Bay gusting up to 50 mph during the morning hours.

The low continues east, pushing heavier snow into eastern Prince
William Sound and the southern Copper River Basin on Wednesday as
well, where snow accumulations of near 6 inches in 12 hours will
be possible. Through Thompson Pass, strong winds contribute to
the threat of blowing snow. With the low shifting east, snow
begins to end from west to east over the Kenai Peninsula, and
winds shift out of the west through Passage Canal. Light snow will
linger along the western slopes of the Chugach Front Range and the
Kenai Mountains with a push of northwesterly cold air advection
wringing out moisture in the wake of the low, and upwards of 6
inches of snow accumulation will be possible along the Anchorage
Hillside midday Wednesday into Wednesday night, for which a new
Winter Weather Advisory has been issued. For Kodiak Island, this
push of cold air leads to a second potential round of high winds
Wednesday afternoon. Gusts to 80 mph will be possible, and there
is greater confidence in this round of winds exceeding the 75 mph
high wind threshold.

By Wednesday evening, the low moves into the eastern Gulf,
allowing snow to taper off across the Copper River Basin, and
leaving only upslope snow showers along select mountain ranges.
Drier, colder air works its way across Southcentral and the Gulf
of Alaska, bringing colder temperatures for Thursday and Friday.
As the low in the Gulf weakens on Thursday, its ability to draw
cold air across the Western Alaska/Aleutian Range eastward and gap
winds begin to wane. Upslope snow showers also gradually taper
off, with uncertain end timing. Friday, cooler, relatively benign
weather conditions take over for inland locations, with cold air
continuing to filter out through gaps in the coastal mountains.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3)...

An unsettled weather pattern will continue across Southwest Alaska
as snow and blowing snow continue to reduce visibility this
evening. However, the general trend is conditions will gradually
improve over the course of this evening. Temperatures will rapidly
cool as the flow becomes northwesterly. Lingering snow showers are
likely, though no significant accumulations are expected.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...

Unsettled weather continues across the Bering/Aleutians as a
second low pressure system moves in the wake of this current
departing low. Widespread gale force winds with areas of storm
force winds are expected. This second low will then exit on
Friday. A third low will move into the western Bering on Friday
and produce gale force winds.

&&

.LONG TERM FORECAST (Days 4 through 7: Saturday through Tuesday)

The primary story in the extended forecast will be a high-
amplitude ridge moving over Mainland Alaska, bringing the
potential for above-freezing temperatures and rain. The ridge
begins to move into Mainland Alaska on Saturday. Increasing
pressure will lead to a spell of quiet weather for Southcentral as
gusty gap winds shut off and little, if any, precipitation is
expected through Tuesday. Maximum temperatures will steadily
increase from day to day under the ridge, though the development
of low stratus or fog under high pressure may help moderate
temperatures near the coast.

Southwest Alaska and the Bering/Aleutians can expect to see much
more unsettled conditions as various storm systems run up against
the ridge and are shunted into these regions. While there remain
model differences regarding the trajectory of individual storms,
there is decent consensus that warm and wet conditions will
prevail. The first storm will be a North Pacific low moving north
across the Central Aleutians and into Southwest Alaska, bringing
gales and moderate to heavy rain at times. Another low developing
near the Central Aleutians will likely bring an additional shot of
moisture. Overall, the primary hazards to keep an eye on will be
above-freezing temperatures and rain amounts/duration.

The ridge looks to persist through Tuesday, though it will be weakened
by the storms moving along its western edge. There is uncertainty
with the evolution of this ridge by Monday/Tuesday, with some
guidance suggesting the ridge will shift further eastward versus
other guidance suggesting that it will degrade in place.

&&
.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Blizzard Warning: 125
		 Winter Weather Advisory: 101, 121, 131, 141
	 	 High Wind Warning: 171
MARINE...Storm Warning: 119, 120, 130-132, 150, 155, 170, 171,
						175, 178, 351, 352, 413
 		 Gale Warning: 125, 129, 136-139, 141, 160, 165, 172-174, 176,
					   179-181, 185, 411, 412, 414
		 Heavy Freezing Spray: 130, 138, 139, 160, 180, 185, 414
FIRE WEATHER...NONE.

&&

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

In the hours before

Local storm report, Feb 28, 10:45 PM AKST, 4 hours 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
1045 PM AKST TUE FEB 28 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0537 PM     SNOW             1 SSE SUTTON            61.71N 148.87W
02/28/2023  M0.1 INCH        MATANUSKA-SUSITNA  AK   TRAINED SPOTTER

            GUSTY WINDS CAUSING SNOW TO BLOW AROUND
            MAKING EXACT MEASUREMENT DIFFICULT.

&&
Local storm report, Feb 28, 10:50 PM AKST, 4 hours 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
1050 PM AKST TUE FEB 28 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1012 PM     SNOW             EAGLE RIVER             61.31N 149.48W
02/28/2023  M0.8 INCH        ANCHORAGE          AK   PUBLIC

            GUSTY WINDS CAUSING DRIFTING SNOW AND MAKING
            MEASUREMENT DIFFICULT.

&&
Local storm report, Feb 28, 10:52 PM AKST, 4 hours 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
1052 PM AKST TUE FEB 28 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0753 PM     SNOW             2 SE BUTTE              61.53N 149.01W
02/28/2023  M0.5 INCH        MATANUSKA-SUSITNA  AK   PUBLIC

            SNOW BLOWING AND DRIFTING WITH SOUTHEAST
            WINDS MAKING MEASUREMENT DIFFICULT.

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 28, 3:47 PM AKSTGale WarningAFC36 hr
Feb 28, 3:47 PM AKSTStorm WarningAFC4 days
Feb 28, 3:47 PM AKSTHeavy Freezing Spray WarningAFC4 days
Feb 28, 3:55 PM AKSTGale WarningAFC24 hr
Feb 28, 3:55 PM AKSTStorm WarningAFC35 hr
Feb 28, 3:58 PM AKSTGale WarningAFC47 hr
Feb 28, 3:58 PM AKSTStorm WarningAFC60 hr
Mar 1, 3:38 AM AKSTHeavy Freezing Spray WarningAFC12 hr
Mar 1, 3:38 AM AKSTHeavy Freezing Spray WarningAFC12 hr
Mar 1, 3:42 AM AKSTWinter Weather AdvisoryAFC25 hr
Mar 1, 4:27 AM AKSTStorm WarningAFC11 hr
Mar 1, 4:27 AM AKSTHeavy Freezing Spray WarningAFC35 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.