Storm Warning 60, NWS Anchorage, AK

149 
FZAK52 PAFC 010055
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
355 PM AKST Tue Feb 28 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.

PKZ199-011400-
355 PM AKST Tue Feb 28 2023
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 960 mb low 60 nm W of St. Matthew will move over the Y-K Delta 
coast Wednesday morning. The low will move inland and dissipate 
Wednesday afternoon. A low near the Kamchatka Peninsula Wednesday 
morning will move to 250 nm W of St. Paul at 994 mb Thursday morning 
and then exit the eastern Bering across the Alaska Peninsula at 1002 
mb by Thursday afternoon.

$$

PKZ150-011400-
South of the AK Peninsula Sitkinak to Castle Cape-
355 PM AKST Tue Feb 28 2023

...STORM WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...SW wind 40 kt. Seas 19 ft. Rain and snow.
.WED...W wind 50 kt. Seas 24 ft. Snow.
.WED NIGHT...W wind 50 kt. Seas 25 ft. Freezing spray.
.THU...W wind 40 kt. Seas 20 ft.
.THU NIGHT...NW wind 40 kt. Seas 15 ft.
.FRI...NW wind 45 kt. Seas 17 ft.
.SAT...W wind 25 kt. Seas 9 ft.
.SUN...S wind 30 kt. Seas 13 ft.

$$

PKZ155-011400-
South of the AK Peninsula Castle Cape to Cape Sarichef-
355 PM AKST Tue Feb 28 2023

...STORM WARNING WEDNESDAY...

.TONIGHT...W wind 40 kt. Seas 19 ft. Rain and snow.
.WED...W wind 50 kt. Seas 24 ft. Widespread snow showers.
.WED NIGHT...W wind 45 kt. Seas 23 ft.
.THU...W wind 40 kt. Seas 19 ft.
.THU NIGHT...NW wind 40 kt. Seas 19 ft.
.FRI...W wind 35 kt. Seas 15 ft.
.SAT...S wind 40 kt. Seas 12 ft.
.SUN...SE wind 40 kt. Seas 19 ft.

$$

PKZ160-011400-
Bristol Bay-
355 PM AKST Tue Feb 28 2023

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

.TONIGHT...W wind 25 kt increasing to 35 kt after midnight. Seas
in ice free waters 10 ft.
.WED...W wind 35 kt increasing to 45 kt in the afternoon. Seas in
ice free waters 16 ft. Freezing spray. Widespread snow showers.
.WED NIGHT...W wind 45 kt. Seas in ice free waters 16 ft. Heavy
freezing spray.
.THU...N wind 25 kt. Seas in ice free waters 10 ft.
.THU NIGHT...NW wind 30 kt. Seas in ice free waters 8 ft.
.FRI...NW wind 30 kt. Seas in ice free waters 8 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.

$$

PKZ165-011400-
Port Heiden to Cape Sarichef-
355 PM AKST Tue Feb 28 2023

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...W wind 30 kt increasing to 45 kt after midnight. Seas
20 ft. Widespread snow showers.
.WED...W wind 45 kt. Seas 24 ft. Freezing spray. Widespread snow
showers.
.WED NIGHT...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 23 ft. Freezing spray.
.THU...SW wind 30 kt. Seas 13 ft.
.THU NIGHT...NW wind 30 kt. Seas 14 ft.
.FRI...W wind 30 kt. Seas 12 ft.
.SAT THROUGH SUN...SE wind 40 kt. Seas 11 ft.

$$

PKZ170-011400-
Cape Sarichef to Nikolski Bering Side-
355 PM AKST Tue Feb 28 2023

...STORM WARNING WEDNESDAY...

.TONIGHT...W wind 45 kt. Seas 22 ft. Widespread snow showers.
.WED...W wind 50 kt. Seas 23 ft. Widespread snow showers.
.WED NIGHT...W wind 35 kt. Seas 20 ft subsiding to 15 ft after
midnight. Snow and rain.
.THU...W wind 45 kt. Seas 26 ft.
.THU NIGHT...NW wind 40 kt. Seas 25 ft.
.FRI...SW wind 30 kt. Seas 12 ft.
.SAT THROUGH SUN...SE wind 45 kt. Seas 16 ft.

$$

PKZ171-011400-
Unalaska Bay-
355 PM AKST Tue Feb 28 2023

...STORM WARNING WEDNESDAY...

.TONIGHT...W wind 40 kt. Seas 6 ft. Widespread snow showers.
.WED...W wind 50 kt. Seas 8 ft. Widespread snow showers.
.WED NIGHT...W wind 35 kt becoming SW 25 kt after midnight. Seas
5 ft. Snow and rain.
.THU...W wind 40 kt. Seas 6 ft.
.THU NIGHT...NW wind 35 kt. Seas 10 ft.
.FRI...S wind 15 kt. Seas 2 ft.
.SAT THROUGH SUN...SE wind 30 kt. Seas 5 ft.

$$

PKZ172-011400-
Cape Sarichef to Nikolski Pacific Side-
355 PM AKST Tue Feb 28 2023

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...W wind 40 kt. Seas 18 ft.
.WED...W wind 45 kt. Seas 22 ft. Snow showers.
.WED NIGHT...SW wind 40 kt. Seas 17 ft. Rain.
.THU...W wind 45 kt. Seas 23 ft.
.THU NIGHT...NW wind 40 kt. Seas 22 ft.
.FRI...SW wind 25 kt. Seas 12 ft.
.SAT THROUGH SUN...SE wind 45 kt. Seas 25 ft.

$$

PKZ173-011400-
Nikolski to Seguam Island Bering Side-
355 PM AKST Tue Feb 28 2023

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...W wind 45 kt. Seas 20 ft.
.WED...W wind 40 kt. Seas 21 ft. Snow showers.
.WED NIGHT...SW wind 45 kt. Seas 17 ft. Snow and rain.
.THU...W wind 50 kt. Seas 29 ft.
.THU NIGHT...W wind 40 kt. Seas 25 ft.
.FRI...S wind 30 kt. Seas 11 ft.
.SAT...SE wind 45 kt. Seas 24 ft.
.SUN...SW wind 40 kt. Seas 24 ft.

$$

PKZ174-011400-
Nikolski to Seguam Island Pacific Side-
355 PM AKST Tue Feb 28 2023

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...W wind 35 kt increasing to 45 kt after midnight. Seas
19 ft. Snow showers.
.WED...W wind 45 kt diminishing to 35 kt in the afternoon. Seas
21 ft. Snow showers.
.WED NIGHT...SW wind 35 kt increasing to 45 kt after midnight.
Seas 19 ft. Rain.
.THU...W wind 45 kt. Seas 23 ft.
.THU NIGHT...NW wind 40 kt. Seas 22 ft.
.FRI...S wind 30 kt. Seas 11 ft.
.SAT...SE wind 45 kt. Seas 28 ft.
.SUN...SW wind 40 kt. Seas 27 ft.

$$

PKZ175-011400-
Seguam Island to Adak Bering Side-
355 PM AKST Tue Feb 28 2023

...STORM WARNING WEDNESDAY NIGHT...

.TONIGHT...W wind 45 kt. Seas 17 ft. Snow showers.
.WED...W wind 40 kt. Seas 17 ft.
.WED NIGHT...W wind 50 kt. Seas 15 ft building to 23 ft after
midnight. Rain and snow.
.THU...W wind 45 kt. Seas 26 ft.
.THU NIGHT...W wind 30 kt. Seas 18 ft.
.FRI...S wind 30 kt. Seas 10 ft.
.SAT...SE wind 40 kt. Seas 18 ft.
.SUN...W wind 30 kt. Seas 14 ft.

$$

PKZ176-011400-
Seguam Island to Adak Pacific Side-
355 PM AKST Tue Feb 28 2023

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...W wind 45 kt. Seas 18 ft. Snow.
.WED...W wind 40 kt becoming SW 30 kt in the afternoon. Seas 18 ft.
.WED NIGHT...SW wind 45 kt. Seas 20 ft.
.THU...W wind 40 kt. Seas 20 ft.
.THU NIGHT...W wind 25 kt. Seas 15 ft.
.FRI...SE wind 30 kt. Seas 12 ft.
.SAT...SE wind 45 kt. Seas 28 ft.
.SUN...W wind 30 kt. Seas 22 ft.

$$

PKZ177-011400-
Adak to Kiska-
355 PM AKST Tue Feb 28 2023

...STORM WARNING WEDNESDAY NIGHT...

.TONIGHT...W wind 40 kt. Seas 17 ft. Snow showers.
.WED...SW wind 30 kt becoming S 45 kt in the afternoon. Seas 16 ft. 
Rain.
.WED NIGHT...SW wind 50 kt. Seas 23 ft.
.THU...W wind 40 kt. Seas 20 ft.
.THU NIGHT...S wind 35 kt. Seas 13 ft.
.FRI...S wind 35 kt. Seas 13 ft.
.SAT...N wind 35 kt. Seas 20 ft.
.SUN...W wind 35 kt. Seas 20 ft.

$$

PKZ178-011400-
Kiska to Attu-
355 PM AKST Tue Feb 28 2023

...STORM WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...W wind 40 kt. Seas 17 ft. Freezing spray. Snow showers.
.WED...S wind 40 kt becoming SW 50 kt in the afternoon. Seas 19 ft. 
Snow and rain.
.WED NIGHT...W wind 50 kt diminishing to 40 kt after midnight.
Seas 22 ft.
.THU...SW wind 30 kt. Seas 17 ft.
.THU NIGHT...S wind 45 kt. Seas 19 ft.
.FRI...S wind 45 kt. Seas 21 ft.
.SAT THROUGH SUN...W wind 35 kt. Seas 16 ft.

$$

PKZ179-011400-
Pribilof Islands Near Shore Waters-
355 PM AKST Tue Feb 28 2023

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...W wind 45 kt. Seas 22 ft. Freezing spray. Widespread
snow showers.
.WED...W wind 40 kt. Seas 20 ft. Freezing spray. Snow.
.WED NIGHT...W wind 25 kt becoming SE after midnight. Seas 14 ft.
Snow.
.THU...NW wind 30 kt. Seas 14 ft.
.THU NIGHT...NW wind 25 kt. Seas 15 ft.
.FRI...S wind 30 kt. Seas 14 ft.
.SAT THROUGH SUN...S wind 40 kt. Seas 22 ft.

$$

PKZ180-011400-
Kuskokwim Delta and Etolin Strait-
355 PM AKST Tue Feb 28 2023

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

.TONIGHT...SW wind 40 kt. Seas in ice free waters 18 ft. Heavy
freezing spray. Snow showers.
.WED...W wind 45 kt. 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. Widespread snow showers.
.WED NIGHT...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 in the evening.
.THU...N wind 20 kt. Seas in ice free waters 8 ft.
.THU NIGHT...NW wind 30 kt. Seas in ice free waters 9 ft.
.FRI...S wind 25 kt. Seas in ice free waters 8 ft.
.SAT THROUGH SUN...SE wind 40 kt. Seas in ice free waters 13 ft.

$$

PKZ181-011400-
North and West of Nunivak Island-
355 PM AKST Tue Feb 28 2023

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...SW wind 40 kt.
.WED...W wind 40 kt.
.WED NIGHT...W wind 30 kt becoming NW 15 kt after midnight.
.THU...N wind 15 kt.
.THU NIGHT...NW wind 15 kt.
.FRI...SE wind 30 kt.
.SAT...S wind 35 kt.
.SUN...SE wind 40 kt.

$$

PKZ185-011400-
Saint Matthew Island Waters-
355 PM AKST Tue Feb 28 2023

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

.TONIGHT...W wind 40 kt. Seas in ice free waters 16 ft subsiding to 
11 ft after midnight. Extreme freezing spray at a rate of 4 cm per 
hour or greater may rapidly accumulate on vessels. Snow showers.
.WED...NW wind 40 kt E of Saint Matthew Island... NW 35 kt W of
Saint Matthew Island. Seas in ice free waters 11 ft. Heavy
freezing spray.
.WED NIGHT...E of Saint Matthew Island, NW wind 25 kt becoming N
15 kt after midnight. W of Saint Matthew Island, NE wind 20 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 in the evening.
.THU...NE wind 30 kt. Seas in ice free waters 8 ft.
.THU NIGHT...W 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 24 ft.
.SUN...SE wind 35 kt. Seas in ice free waters 18 ft.

$$

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.

$$

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.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
656 PM AKST Mon Feb 27 2023

.ANALYSIS AND UPPER LEVELS...

In the upper levels the jet stream is pumping warm, moist air
across the Bering and Aleutians ahead of a low pressure system
that is currently moving across the Bering. This system is
producing gale force winds across the Bering and Pribilofs with
snow changing to rain. The trailing cold front across the
Aleutians is producing periods of rain. Across the southern
mainland a broad ridge is producing mostly clear skies with high
clouds increasing from the west.

&&

.MODEL DISCUSSION...

Models are in good agreement today, but then quickly diverage with
a triple point low forming across the western Gulf. At 500mb the
GFS, EC and GEM have a shortwave moving across the Gulf becoming
negatively titled Wednesday morning while the NAM is more
progressive with no negative tilt. At the surface all the models
have an elongated area of low pressure just east of Kodiak Island
and extending south of the AKPen Tuesday afternoon. Tuesday night
into Wednesday the models form on stronger consolidated low
moving east of the Kenai Peninsula and then towards the northern
Gulf hugging the coast line near Cordova. The NAM is the fastest
and farthest east with the GFS the slowest of the bunch, with the
EC and GEM somewhere in between. This low track will affect the
snowfall amounts and location of heaviest snowfall in the
deformation band. The GEFS and GEM ensembles show similar tracks
and timing, so we have opted to a blend of the GFS and GEM.
Another potential issue is both the GFS and GEM show the low
pressure stalling out across the northern Gulf near Prince William
Sound with lingering light snow Wednesday and Thursday which
could potentially bring several more inches of snow to Anchorage
and the MAT valley.

&&

.AVIATION...
PANC...VFR conditions and light winds will persist through
tonight. High clouds will increase tonight ahead of the next storm
system with ceiling and visibility decreasing to MVFR and possibly
IFR as snow develops tomorrow morning with up to 4 inches of
snowfall through the day on Tuesday.

&&

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

Gap winds along the north Gulf coast will diminish gradually this
evening as a large low pressure system approaches from the west,
shifting low-level winds out of the south. Clear, cold conditions
will continue, at least through the evening hours, before a shield
of cirrus begins to overspread Southcentral tonight out ahead of
the low's approaching front. The occluded front pushes across
Kodiak Island early Tuesday morning as easterly winds and snow
develop ahead of the front. The snow will change over to rain
across the island through Tuesday morning as the front lifts north
and warmer air filters in. A triple point low is then expected to
develop along the front northeast of Kodiak Island and move
toward Prince William Sound by Tuesday afternoon. Snow will
progress toward the mainland Tuesday morning, with an atmospheric
environment primed for snow production.

While upper-level dynamics are not particularly pronounced over
Southcentral on Tuesday, copious moisture streaming into the
region on southwesterly flow and a deep dendritic growth layer
through the atmospheric profile is expected to amount to a light,
fluffy snow going into midday Tuesday. By the afternoon, a
downslope hole starts to develop while the front weakens, causing
snow intensity to lighten or even stop for locations west of the
Chugach Front Range and the Kenai Mountains. Before this lull sets
in, the Anchorage Bowl should see 2 to 4 inches of snow, with
accumulations closer to 6 inches for the western Kenai Peninsula.
Light snow is likely to persist into the evening further from the
mountains, near Cook Inlet along the western Kenai Peninsula,
where localized accumulations may begin to approach a foot.
Additionally, strong southeasterly winds are expected to develop
through favored gap locations, with gusty winds likely for
Whittier, Portage Valley, and into Turnagain Arm. This is expected
to produce whiteout conditions through the Portage Valley and
eastern Turnagain Arm areas, for which a Blizzard Warning has been
issued.

Tuesday afternoon, uncertainty increases, with two distinct
solutions possible. With the first, the triple point low
strengthens and continues to push eastward, leading to a
continuation of Tuesday afternoon's conditions into Wednesday
morning before the low exits to the east and snow ends rather
quickly from west to east across Southcentral. With the second
solution, a strong shortwave lifting out of the North Pacific
intensifies a weak surface trough into a closed low south of
Kodiak Island. This low tracks south of the Kenai Peninsula by
Wednesday morning, and contributes to another round of heavier
snow over the western Kenai Peninsula and potentially northward
into Anchorage on Wednesday. This forecast package sides closer
to the second solution based on the reasoning that the stronger
shortwave is more likely to assist the development of the western
low compared to the eastern one, which is much further away.
However, confidence in this solution winning out is still low.

Going along with this thinking, the heaviest snow tapers off
Wednesday afternoon across the Kenai Peninsula and Anchorage after
producing a widespread 6 to 12 inch amounts in the western Kenai
Peninsula, with locally higher amounts for the immediate west
coast along Cook Inlet. Tuesday through Wednesday, Anchorage may
see 4 to 8 inches of snow in total, with a bit less for the
Matanuska Valley, but these values may still vary with changes in
expected storm track. Cordova, Valdez, and the portions of the
Copper River Basin could also see storm total amounts ranging from
6 to 12 inches.

A return of colder air and gusty outflow winds is then expected
for the latter half of the week as the low exits the region.

&&

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

An active weather pattern is expected across Southwest Alaska as a
storm system moves across the area on Tuesday. Snow along with
strong winds will reduce visibility across the area. A Blizzard
Warning is in effect for the Kuskokwim Delta and Winter Weather
Advisories for Bristol Bay and the lower Kuskokwim Valley for
Tuesday. Conditions will then gradually ease Tuesday night into
Wednesday across the region from west to east.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 3)...

A large storm system will continue moving over the Bering Sea
through Wednesday evening. This storm system will produce
widespread gale and storm force winds. Conditions will then ease
Wednesday evening and night, however a second low will bring gale
force winds to the Aleutians on Thursday into Friday.

&&

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

Models have come into better agreement for the long-term in terms
of synoptic features, but are still struggling with the finer
details. By Friday afternoon the leading front of a northern
Bering low approaches Southwest Alaska. This front will bring
widespread light showers from the Kuskokwim Delta, to the Lower
Kuskokwim Valley and Greater Bristol Bay region through Saturday
afternoon. This wave is expected to break-up along the Alaska
Range, and not extend into Southcentral. High confidence is had
that a ridge of high pressure will build over the Mainland and
bring warmer temperatures to Southwest. These temperatures may be
moderated by shortwaves that traverse over the ride near the
Kuskokwim Delta/Valley, but the Bristol Bay region and AKPen are
expected to be "warmer". The aforementioned ridge will also aide
in keeping much of the activity out of Southcentral during this
period. Late Saturday evening a North Pacific low will surge
towards the Western/Central Aleutians, bringing widespread light
precipitation and southerly gales from Adak to Unalaska lasting
until Sunday morning. Precipitation associated with this system
will likely be blocked to the east, with only a few showers
possibly reaching the Southwest coastline late Sunday morning.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Blizzard Warning: 125
		 Winter Weather Advisory: 121
MARINE...Storm Warning: 119, 120, 125, 170, 175, 177-179, 181,
						411-414
		 Gale Warning: 125, 130, 131, 139, 150, 155, 160, 165,
					   171-174, 176, 180, 185, 351, 352
	     Heavy Freezing Spray: 126-128, 130, 139, 160, 180, 181,
							   185, 414
FIRE WEATHER...NONE.

&&

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