Brisk Wind Advisory 63, NWS Anchorage, AK

045 
FZAK52 PAFC 012351
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
351 PM AKDT Wed Apr 1 2020

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.

PKZ199-021230-
351 PM AKDT Wed Apr 1 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

High pressure will continue over the Aleutians through Thursday
night. A 981 mb low 350 nm SW of Shemya early Friday morning will
move 200 nm NW of Shemya at 989 mb Friday afternoon.

$$

PKZ150-021230-
South of the AK Peninsula Sitkinak to Castle Cape-
351 PM AKDT Wed Apr 1 2020

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SE wind 25 kt. Seas 7 ft. Rain.
.THU...NW wind 20 kt. From Chirikof Island E, SE wind 20 kt becoming
NW in the afternoon. Seas 7 ft. Rain.
.THU NIGHT...W wind 20 kt. Seas 7 ft.
.FRI AND FRI NIGHT...W wind 25 kt. Seas 7 ft.
.SAT THROUGH SUN...W wind 25 kt. Seas 8 ft.
.MON...W wind 30 kt. Seas 11 ft.

$$

PKZ155-021230-
South of the AK Peninsula Castle Cape to Cape Sarichef-
351 PM AKDT Wed Apr 1 2020

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 30 kt except NE 20 kt from the Shumagin Islands
E. Seas 6 ft. Rain.
.THU...N wind 20 kt. Seas 6 ft.
.THU NIGHT...W wind 20 kt. Seas 7 ft.
.FRI AND FRI NIGHT...SW wind 25 kt. Seas 7 ft.
.SAT THROUGH MON...W wind 25 kt. Seas 11 ft.

$$

PKZ160-021230-
Bristol Bay-
351 PM AKDT Wed Apr 1 2020

.TONIGHT...W wind 10 kt increasing to 15 kt after midnight. Seas
in ice free waters 2 ft. Freezing spray after midnight. Rain in the 
evening changing to snow.
.THU...W wind 15 kt. Seas in ice free waters 2 ft.
.THU NIGHT...SW wind 20 kt. Seas in ice free waters 3 ft. Freezing
spray.
.FRI...W wind 25 kt. Seas in ice free waters 4 ft.
.FRI NIGHT...SW wind 30 kt. Seas in ice free waters 5 ft.
.SAT...SW wind 30 kt. Seas in ice free waters 5 ft.
.SUN...W wind 20 kt. Seas in ice free waters 3 ft.
.MON...W wind 25 kt. Seas in ice free waters 3 ft.

$$

PKZ165-021230-
Port Heiden to Cape Sarichef-
351 PM AKDT Wed Apr 1 2020

.TONIGHT...NW wind 20 kt. Seas 5 ft.
.THU...SW wind 20 kt. Seas 4 ft.
.THU NIGHT...SW wind 20 kt. Seas 7 ft.
.FRI...SW wind 35 kt. Seas 11 ft.
.FRI NIGHT...SW wind 30 kt. Seas 13 ft.
.SAT...SW wind 30 kt. Seas 14 ft.
.SUN...W wind 25 kt. Seas 13 ft.
.MON...W wind 30 kt. Seas 13 ft.

$$

PKZ170-021230-
Cape Sarichef to Nikolski Bering Side-
351 PM AKDT Wed Apr 1 2020

...SMALL CRAFT ADVISORY TONIGHT AND THURSDAY NIGHT...

.TONIGHT...N wind 25 kt becoming NW 15 kt after midnight. 
Seas 6 ft.
.THU...SW wind 20 kt. Seas 6 ft.
.THU NIGHT...W wind 25 kt. Seas 9 ft.
.FRI AND FRI NIGHT...SW wind 35 kt. Seas 14 ft.
.SAT...SW wind 30 kt. Seas 17 ft.
.SUN THROUGH MON...W wind 25 kt. Seas 13 ft.

$$

PKZ171-021230-
Unalaska Bay-
351 PM AKDT Wed Apr 1 2020

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 25 kt becoming NW 15 kt after midnight. 
Seas 6 ft.
.THU...W wind 10 kt. Seas 3 ft.
.THU NIGHT...W wind 20 kt. Seas 3 ft.
.FRI AND FRI NIGHT...SW wind 30 kt. Seas 5 ft.
.SAT...SW wind 30 kt. Seas 5 ft.
.SUN THROUGH MON...W wind 20 kt. Seas 3 ft.

$$

PKZ172-021230-
Cape Sarichef to Nikolski Pacific Side-
351 PM AKDT Wed Apr 1 2020

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 30 kt. Seas 7 ft.
.THU...NW wind 20 kt. Seas 5 ft.
.THU NIGHT...W wind 20 kt. Seas 6 ft.
.FRI...SW wind 25 kt. Seas 7 ft.
.FRI NIGHT...SW wind 30 kt. Seas 9 ft.
.SAT...SW wind 30 kt. Seas 12 ft.
.SUN...W wind 25 kt. Seas 12 ft.
.MON...W wind 25 kt. Seas 7 ft.

$$

PKZ173-021230-
Nikolski to Seguam Island Bering Side-
351 PM AKDT Wed Apr 1 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...NW wind 20 kt. Seas 5 ft.
.THU...W wind 25 kt. Seas 8 ft.
.THU NIGHT...SW wind 25 kt increasing to 35 kt after midnight.
Seas 11 ft.
.FRI...SW wind 40 kt. Seas 15 ft.
.FRI NIGHT...SW wind 35 kt. Seas 15 ft.
.SAT...SW wind 30 kt. Seas 18 ft.
.SUN THROUGH MON...W wind 20 kt. Seas 13 ft.

$$

PKZ174-021230-
Nikolski to Seguam Island Pacific Side-
351 PM AKDT Wed Apr 1 2020

...SMALL CRAFT ADVISORY TONIGHT AND THURSDAY NIGHT...

.TONIGHT...N wind 30 kt becoming NW 15 kt after midnight. 
Seas 8 ft.
.THU...W wind 15 kt. Seas 5 ft.
.THU NIGHT...SW wind 25 kt. Seas 7 ft.
.FRI...SW wind 35 kt. Seas 10 ft.
.FRI NIGHT...S wind 30 kt. Seas 13 ft.
.SAT...SW wind 30 kt. Seas 16 ft.
.SUN...W wind 20 kt. Seas 14 ft.
.MON...NW wind 20 kt. Seas 10 ft.

$$

PKZ175-021230-
Seguam Island to Adak Bering Side-
351 PM AKDT Wed Apr 1 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 7 ft.
.THU...SW wind 25 kt. Seas 10 ft.
.THU NIGHT...SW wind 35 kt becoming S 45 kt after midnight. 
Seas 14 ft.
.FRI...S wind 50 kt. Seas 17 ft.
.FRI NIGHT...SW wind 40 kt. Seas 17 ft.
.SAT...SW wind 40 kt. Seas 19 ft.
.SUN...W wind 20 kt. Seas 13 ft.
.MON...S wind 15 kt. Seas 8 ft.

$$

PKZ176-021230-
Seguam Island to Adak Pacific Side-
351 PM AKDT Wed Apr 1 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...W wind 20 kt. Seas 5 ft.
.THU...W wind 20 kt. Seas 6 ft.
.THU NIGHT...S wind 35 kt. Seas 7 ft building to 11 ft after midnight.
.FRI...S wind 40 kt. Seas 19 ft.
.FRI NIGHT...SW wind 35 kt. Seas 18 ft.
.SAT...SW wind 30 kt. Seas 19 ft.
.SUN...W wind 20 kt. Seas 11 ft.
.MON...E wind 15 kt. Seas 5 ft.

$$

PKZ177-021230-
Adak to Kiska-
351 PM AKDT Wed Apr 1 2020

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

.TONIGHT...SW wind 30 kt. Seas 10 ft.
.THU...SW wind 25 kt becoming S 35 kt in the afternoon. Seas 11 ft.
.THU NIGHT...S wind 45 kt. Seas 20 ft. Rain.
.FRI AND FRI NIGHT...SW wind 45 kt. Seas 24 ft.
.SAT...SW wind 40 kt. Seas 26 ft.
.SUN...W wind 20 kt. Seas 10 ft.
.MON...E wind 25 kt. Seas 7 ft.

$$

PKZ178-021230-
Kiska to Attu-
351 PM AKDT Wed Apr 1 2020

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 35 kt. Seas 16 ft.
.THU...SW wind 25 kt becoming S 45 kt in the afternoon. Seas 14
ft. Rain and snow.
.THU NIGHT...S wind 45 kt. Seas 23 ft. Rain.
.FRI AND FRI NIGHT...SW wind 45 kt. Seas 31 ft.
.SAT...SW wind 40 kt. Seas 27 ft.
.SUN...SW wind 25 kt. Seas 11 ft.
.MON...E wind 30 kt. Seas 8 ft.

$$

PKZ179-021230-
Pribilof Islands Near Shore Waters-
351 PM AKDT Wed Apr 1 2020

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

.TONIGHT...SW wind 15 kt becoming S 25 kt after midnight. Seas 6 ft.
.THU...SW wind 30 kt. Seas 10 ft.
.THU NIGHT...W wind 25 kt. Seas 12 ft.
.FRI...SW wind 45 kt. Seas 19 ft.
.FRI NIGHT...SW wind 40 kt. Seas 19 ft.
.SAT...SW wind 40 kt. Seas 21 ft.
.SUN THROUGH MON...W wind 25 kt. Seas 10 ft.

$$

PKZ180-021230-
Kuskokwim Delta and Etolin Strait-
351 PM AKDT Wed Apr 1 2020

...SMALL CRAFT ADVISORY THURSDAY AND THURSDAY NIGHT...

.TONIGHT...NW wind 20 kt. Seas in ice free waters 2 ft. 
Freezing spray.
.THU...S wind 30 kt. Seas in ice free waters 2 ft.
.THU NIGHT...SW wind 25 kt. Seas in ice free waters 3 ft. 
Freezing spray.
.FRI AND FRI NIGHT...SW wind 30 kt. Seas in ice free waters 5 ft.
.SAT...SW wind 30 kt. Seas in ice free waters 5 ft.
.SUN THROUGH MON...W wind 25 kt. Seas in ice free waters 2 ft.

$$

PKZ181-021230-
North and West of Nunivak Island-
351 PM AKDT Wed Apr 1 2020

...BRISK WIND ADVISORY THURSDAY AND THURSDAY NIGHT...

.TONIGHT...S wind 20 kt.
.THU...S wind 30 kt. Snow showers.
.THU NIGHT...SW wind 25 kt.
.FRI AND FRI NIGHT...S wind 30 kt.
.SAT...SW wind 30 kt.
.SUN THROUGH MON...W wind 25 kt.

$$

PKZ185-021230-
Saint Matthew Island Waters-
351 PM AKDT Wed Apr 1 2020

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

.TONIGHT...E of Saint Matthew Island, SW wind 15 kt becoming S 30
kt after midnight. W of Saint Matthew Island, S wind 30 kt. Seas 9 
ft. Freezing spray. Snow showers.
.THU...SW wind 30 kt. Seas 13 ft. Freezing spray. Snow showers.
.THU NIGHT...W wind 30 kt diminishing to 20 kt after midnight.
Seas 13 ft. Freezing spray.
.FRI AND FRI NIGHT...S wind 30 kt. Seas 13 ft.
.SAT...SW wind 30 kt. Seas 18 ft.
.SUN THROUGH MON...W wind 25 kt. Seas 6 ft.

$$

124 
FZAK52 PAFC 021159
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
359 AM AKDT Thu Apr 2 2020

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.

PKZ199-030030-
359 AM AKDT Thu Apr 2 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A weakening frontal boundary will cross the northern Bering
through Thu afternoon. A strengthening front associated with a
970 mb Kamchatka low will enter the western Aleutians Thu morning
and then cover the remainder of the Aleutians and Bering Sea by
Fri afternoon as the 986 mb parent low enters the western Bering. 

$$

PKZ150-030030-
South of the AK Peninsula Sitkinak to Castle Cape-
359 AM AKDT Thu Apr 2 2020

...SMALL CRAFT ADVISORY FRIDAY...

.TODAY...NW wind 20 kt. Seas 7 ft. Rain.
.TONIGHT...W wind 20 kt. Seas 7 ft.
.FRI...W wind 25 kt. Seas 7 ft.
.FRI NIGHT...W wind 20 kt. Seas 6 ft.
.SAT...SW wind 30 kt. Seas 9 ft.
.SUN...NW wind 30 kt. Seas 9 ft.
.MON...W wind 15 kt. Seas 11 ft.

$$

PKZ155-030030-
South of the AK Peninsula Castle Cape to Cape Sarichef-
359 AM AKDT Thu Apr 2 2020

...SMALL CRAFT ADVISORY FRIDAY...

.TODAY...N wind 20 kt. Seas 6 ft.
.TONIGHT...W wind 20 kt. Seas 7 ft.
.FRI...SW wind 25 kt. Seas 7 ft.
.FRI NIGHT...SW wind 25 kt. Seas 7 ft.
.SAT...SW wind 25 kt. Seas 10 ft.
.SUN...NW wind 25 kt. Seas 12 ft.
.MON...W wind 20 kt. Seas 9 ft.

$$

PKZ160-030030-
Bristol Bay-
359 AM AKDT Thu Apr 2 2020

...SMALL CRAFT ADVISORY FRIDAY...

.TODAY...W wind 15 kt. Seas in ice free waters 2 ft.
.TONIGHT...SW wind 20 kt. Seas in ice free waters 3 ft. Freezing
spray.
.FRI...SW wind 25 kt. Seas in ice free waters 4 ft. Freezing
spray.
.FRI NIGHT...SW wind 30 kt. Seas in ice free waters 5 ft.
.SAT THROUGH SUN...W wind 30 kt. Seas in ice free waters 6 ft.
.MON...SW wind 20 kt. Seas in ice free waters 5 ft.

$$

PKZ165-030030-
Port Heiden to Cape Sarichef-
359 AM AKDT Thu Apr 2 2020

...GALE WARNING FRIDAY...

.TODAY...SW wind 20 kt. Seas 5 ft.
.TONIGHT...SW wind 20 kt. Seas 6 ft.
.FRI...SW wind 25 kt increasing to 35 kt in the afternoon. Seas 7
ft building to 11 ft in the afternoon.
.FRI NIGHT...SW wind 30 kt. Seas 12 ft.
.SAT...SW wind 35 kt. Seas 15 ft.
.SUN THROUGH MON...W wind 25 kt. Seas 14 ft.

$$

PKZ170-030030-
Cape Sarichef to Nikolski Bering Side-
359 AM AKDT Thu Apr 2 2020

...GALE WARNING FRIDAY...

.TODAY...SW wind 20 kt. Seas 5 ft.
.TONIGHT...W wind 25 kt. Seas 8 ft.
.FRI...SW wind 35 kt. Seas 13 ft.
.FRI NIGHT...SW wind 35 kt. Seas 14 ft.
.SAT...SW wind 35 kt. Seas 17 ft.
.SUN THROUGH MON...W wind 25 kt. Seas 14 ft.

$$

PKZ171-030030-
Unalaska Bay-
359 AM AKDT Thu Apr 2 2020

...SMALL CRAFT ADVISORY FRIDAY...

.TODAY...W wind 10 kt. Seas 3 ft.
.TONIGHT...W wind 20 kt. Seas 3 ft.
.FRI...SW wind 20 kt increasing to 30 kt in the afternoon. Seas 2
ft building to 4 ft in the afternoon.
.FRI NIGHT...SW wind 30 kt. Seas 5 ft.
.SAT...SW wind 25 kt. Seas 4 ft.
.SUN...W wind 20 kt. Seas 3 ft.
.MON...W wind 15 kt. Seas 5 ft.

$$

PKZ172-030030-
Cape Sarichef to Nikolski Pacific Side-
359 AM AKDT Thu Apr 2 2020

...SMALL CRAFT ADVISORY FRIDAY...

.TODAY...NW wind 20 kt. Seas 5 ft.
.TONIGHT...W wind 20 kt. Seas 5 ft.
.FRI...SW wind 25 kt. Seas 7 ft.
.FRI NIGHT...SW wind 30 kt. Seas 9 ft.
.SAT...W wind 30 kt. Seas 12 ft.
.SUN...NW wind 20 kt. Seas 12 ft.
.MON...NW wind 20 kt. Seas 7 ft.

$$

PKZ173-030030-
Nikolski to Seguam Island Bering Side-
359 AM AKDT Thu Apr 2 2020

...GALE WARNING FRIDAY...

.TODAY...W wind 25 kt. Seas 7 ft.
.TONIGHT...SW wind 30 kt. Seas 10 ft.
.FRI...S wind 30 kt becoming SW 40 kt in the afternoon. Seas 15
ft.
.FRI NIGHT...SW wind 35 kt. Seas 14 ft.
.SAT...W wind 35 kt. Seas 17 ft.
.SUN...W wind 20 kt. Seas 14 ft.
.MON...NW wind 20 kt. Seas 11 ft.

$$

PKZ174-030030-
Nikolski to Seguam Island Pacific Side-
359 AM AKDT Thu Apr 2 2020

...GALE WARNING FRIDAY...

.TODAY...W wind 15 kt. Seas 5 ft.
.TONIGHT...SW wind 25 kt. Seas 6 ft.
.FRI...S wind 25 kt becoming SW 35 kt in the afternoon. Seas 10
ft.
.FRI NIGHT...S wind 30 kt. Seas 14 ft.
.SAT...W wind 30 kt. Seas 17 ft.
.SUN...W wind 20 kt. Seas 14 ft.
.MON...NW wind 20 kt. Seas 10 ft.

$$

PKZ175-030030-
Seguam Island to Adak Bering Side-
359 AM AKDT Thu Apr 2 2020

...STORM WARNING FRIDAY...

.TODAY...SW wind 25 kt. Seas 9 ft.
.TONIGHT...SW wind 35 kt becoming S 45 kt after midnight. Seas
14 ft.
.FRI...S wind 50 kt. Seas 17 ft.
.FRI NIGHT...SW wind 40 kt. Seas 16 ft.
.SAT...W wind 40 kt. Seas 18 ft.
.SUN...W wind 20 kt. Seas 13 ft.
.MON...NW wind 20 kt. Seas 8 ft.

$$

PKZ176-030030-
Seguam Island to Adak Pacific Side-
359 AM AKDT Thu Apr 2 2020

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...W wind 20 kt. Seas 5 ft.
.TONIGHT...S wind 35 kt. Seas 10 ft.
.FRI...S wind 40 kt. Seas 18 ft.
.FRI NIGHT...SW wind 35 kt. Seas 18 ft.
.SAT...W wind 35 kt. Seas 21 ft.
.SUN...W wind 20 kt. Seas 12 ft.
.MON...N wind 15 kt. Seas 8 ft.

$$

PKZ177-030030-
Adak to Kiska-
359 AM AKDT Thu Apr 2 2020

...GALE WARNING THROUGH FRIDAY...

.TODAY...SW wind 25 kt becoming S 35 kt in the afternoon. Seas
11 ft. Rain.
.TONIGHT...S wind 45 kt. Seas 19 ft. Rain.
.FRI...SW wind 45 kt. Seas 22 ft. Rain.
.FRI NIGHT...SW wind 45 kt. Seas 25 ft.
.SAT...W wind 40 kt. Seas 24 ft.
.SUN...SW wind 25 kt. Seas 12 ft.
.MON...E wind 25 kt. Seas 10 ft.

$$

PKZ178-030030-
Kiska to Attu-
359 AM AKDT Thu Apr 2 2020

...GALE WARNING THROUGH FRIDAY...

.TODAY...SW wind 25 kt becoming S 45 kt in the afternoon. Seas
16 ft. Rain.
.TONIGHT...S wind 45 kt. Seas 22 ft. Rain.
.FRI...SW wind 45 kt. Seas 22 ft building to 29 ft in the
afternoon.
.FRI NIGHT...SW wind 50 kt. Seas 28 ft.
.SAT...W wind 30 kt. Seas 23 ft.
.SUN...SW wind 25 kt. Seas 11 ft.
.MON...SE wind 25 kt. Seas 12 ft.

$$

PKZ179-030030-
Pribilof Islands Near Shore Waters-
359 AM AKDT Thu Apr 2 2020

...GALE WARNING FRIDAY...

.TODAY...SW wind 30 kt. Seas 8 ft.
.TONIGHT...SW wind 30 kt. Seas 11 ft. Rain.
.FRI...SW wind 40 kt. Seas 17 ft. Rain.
.FRI NIGHT...SW wind 40 kt. Seas 20 ft.
.SAT...SW wind 35 kt. Seas 20 ft.
.SUN...SW wind 30 kt. Seas 17 ft.
.MON...W wind 20 kt. Seas 10 ft.

$$

PKZ180-030030-
Kuskokwim Delta and Etolin Strait-
359 AM AKDT Thu Apr 2 2020

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...S wind 30 kt. Seas in ice free waters 2 ft.
.TONIGHT...SW wind 25 kt. Seas in ice free waters 3 ft. Freezing
spray.
.FRI...S wind 30 kt. Seas in ice free waters 4 ft. Rain with snow.
.FRI NIGHT...SW wind 30 kt. Seas in ice free waters 6 ft.
.SAT...SW wind 35 kt. Seas in ice free waters 6 ft.
.SUN...SW wind 30 kt. Seas in ice free waters 5 ft.
.MON...W wind 20 kt. Seas in ice free waters 2 ft.

$$

PKZ181-030030-
North and West of Nunivak Island-
359 AM AKDT Thu Apr 2 2020

...BRISK WIND ADVISORY THROUGH FRIDAY...

.TODAY...S wind 30 kt. Widespread snow showers.
.TONIGHT...SW wind 25 kt.
.FRI...S wind 30 kt. Snow and rain.
.FRI NIGHT...S wind 30 kt.
.SAT...SW wind 35 kt.
.SUN...W wind 30 kt.
.MON...W wind 20 kt.

$$

PKZ185-030030-
Saint Matthew Island Waters-
359 AM AKDT Thu Apr 2 2020

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...SW wind 30 kt. Seas 12 ft. Freezing spray. Widespread
snow showers.
.TONIGHT...W wind 30 kt becoming SW 20 kt after midnight. Seas
12 ft. Freezing spray.
.FRI...SE wind 30 kt. Seas 11 ft. Snow and rain.
.FRI NIGHT...S wind 30 kt. Seas 15 ft.
.SAT THROUGH SUN...W wind 40 kt. Seas 18 ft.
.MON...W wind 20 kt. Seas 6 ft.

$$

697 
FZAK52 PAFC 022345
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
345 PM AKDT Thu Apr 2 2020

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.

PKZ199-031300-
345 PM AKDT Thu Apr 2 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 981 mb low 340 nm SW of Shemya tonight will move 330 nm NW of
Shemya at 990 mb Friday afternoon. A front in the western
Aleutians Friday night will move to the eastern Aleutians Saturday
afternoon. 

$$

PKZ150-031300-
South of the AK Peninsula Sitkinak to Castle Cape-
345 PM AKDT Thu Apr 2 2020

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TONIGHT...W wind 20 kt. Seas 8 ft. Rain showers.
.FRI...W wind 25 kt. Seas 7 ft.
.FRI NIGHT...W wind 20 kt. Seas 6 ft.
.SAT AND SAT NIGHT...W wind 30 kt. Seas 8 ft.
.SUN...NW wind 30 kt. Seas 8 ft.
.MON...W wind 15 kt. Seas 11 ft.
.TUE...NW wind 20 kt. Seas 8 ft.

$$

PKZ155-031300-
South of the AK Peninsula Castle Cape to Cape Sarichef-
345 PM AKDT Thu Apr 2 2020

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...W wind 20 kt. Seas 6 ft.
.FRI...SW wind 25 kt. Seas 7 ft.
.FRI NIGHT...SW wind 25 kt. Seas 7 ft.
.SAT AND SAT NIGHT...W wind 25 kt. Seas 9 ft.
.SUN...NW wind 25 kt. Seas 9 ft.
.MON...W wind 20 kt. Seas 9 ft.
.TUE...N wind 20 kt. Seas 7 ft.

$$

PKZ160-031300-
Bristol Bay-
345 PM AKDT Thu Apr 2 2020

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas in ice free waters 3 ft.
.FRI...SW wind 25 kt. Seas in ice free waters 4 ft.
.FRI NIGHT...SW wind 30 kt. Seas in ice free waters 5 ft.
.SAT...SW wind 20 kt. Seas in ice free waters 4 ft.
.SAT NIGHT...SW wind 30 kt. Seas in ice free waters 6 ft.
.SUN...W wind 30 kt. Seas in ice free waters 5 ft.
.MON...SW wind 20 kt. Seas in ice free waters 5 ft.
.TUE...NW wind 15 kt. Seas in ice free waters 5 ft.

$$

PKZ165-031300-
Port Heiden to Cape Sarichef-
345 PM AKDT Thu Apr 2 2020

...GALE WARNING FRIDAY...

.TONIGHT...SW wind 20 kt. Seas 6 ft.
.FRI...SW wind 25 kt increasing to 35 kt in the afternoon. Seas
11 ft.
.FRI NIGHT...SW wind 30 kt. Seas 12 ft.
.SAT...SW wind 30 kt. Seas 13 ft.
.SAT NIGHT...W wind 35 kt. Seas 15 ft.
.SUN THROUGH MON...W wind 25 kt. Seas 14 ft.
.TUE...NW wind 15 kt. Seas 8 ft.

$$

PKZ170-031300-
Cape Sarichef to Nikolski Bering Side-
345 PM AKDT Thu Apr 2 2020

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

.TONIGHT...W wind 25 kt. Seas 8 ft.
.FRI...SW wind 35 kt. Seas 13 ft.
.FRI NIGHT...SW wind 35 kt. Seas 14 ft.
.SAT...SW wind 35 kt. Seas 16 ft.
.SAT NIGHT...W wind 30 kt. Seas 17 ft.
.SUN THROUGH MON...W wind 25 kt. Seas 13 ft.
.TUE...N wind 15 kt. Seas 7 ft.

$$

PKZ171-031300-
Unalaska Bay-
345 PM AKDT Thu Apr 2 2020

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...W wind 20 kt. Seas 3 ft.
.FRI...SW wind 20 kt increasing to 30 kt in the afternoon. Seas 2
ft building to 4 ft in the afternoon.
.FRI NIGHT...SW wind 30 kt. Seas 5 ft.
.SAT...SW wind 20 kt. Seas 3 ft.
.SAT NIGHT...W wind 25 kt. Seas 4 ft.
.SUN...W wind 20 kt. Seas 3 ft.
.MON...W wind 15 kt. Seas 5 ft.
.TUE...N wind 10 kt. Seas 3 ft.

$$

PKZ172-031300-
Cape Sarichef to Nikolski Pacific Side-
345 PM AKDT Thu Apr 2 2020

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...W wind 20 kt. Seas 5 ft.
.FRI...SW wind 25 kt. Seas 7 ft.
.FRI NIGHT...SW wind 30 kt. Seas 8 ft.
.SAT...SW wind 30 kt. Seas 12 ft.
.SAT NIGHT...W wind 30 kt. Seas 12 ft.
.SUN...NW wind 20 kt. Seas 11 ft.
.MON...NW wind 20 kt. Seas 7 ft.
.TUE...N wind 15 kt. Seas 6 ft.

$$

PKZ173-031300-
Nikolski to Seguam Island Bering Side-
345 PM AKDT Thu Apr 2 2020

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

.TONIGHT...SW wind 30 kt. Seas 10 ft.
.FRI...S wind 30 kt becoming SW 40 kt in the afternoon. Seas 14
ft.
.FRI NIGHT...SW wind 35 kt. Seas 14 ft.
.SAT...SW wind 35 kt. Seas 17 ft.
.SAT NIGHT...NW wind 25 kt. Seas 16 ft.
.SUN...W wind 20 kt. Seas 13 ft.
.MON...NW wind 20 kt. Seas 11 ft.
.TUE...E wind 15 kt. Seas 8 ft.

$$

PKZ174-031300-
Nikolski to Seguam Island Pacific Side-
345 PM AKDT Thu Apr 2 2020

...GALE WARNING FRIDAY...

.TONIGHT...SW wind 25 kt. Seas 6 ft.
.FRI...S wind 25 kt becoming SW 35 kt in the afternoon. Seas 10
ft.
.FRI NIGHT...S wind 30 kt. Seas 14 ft.
.SAT...SW wind 30 kt. Seas 16 ft.
.SAT NIGHT...NW wind 25 kt. Seas 16 ft.
.SUN THROUGH MON...NW wind 20 kt. Seas 12 ft.
.TUE...NE wind 15 kt. Seas 8 ft.

$$

PKZ175-031300-
Seguam Island to Adak Bering Side-
345 PM AKDT Thu Apr 2 2020

...STORM WARNING FRIDAY...

.TONIGHT...SW wind 35 kt becoming S 45 kt after midnight. Seas
14 ft.
.FRI...S wind 50 kt. Seas 17 ft.
.FRI NIGHT...SW wind 40 kt. Seas 16 ft.
.SAT...W wind 40 kt. Seas 19 ft.
.SAT NIGHT...NW wind 25 kt. Seas 14 ft.
.SUN...W wind 20 kt. Seas 12 ft.
.MON...NW wind 20 kt. Seas 8 ft.
.TUE...SE wind 20 kt. Seas 8 ft.

$$

PKZ176-031300-
Seguam Island to Adak Pacific Side-
345 PM AKDT Thu Apr 2 2020

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...S wind 35 kt. Seas 10 ft.
.FRI...S wind 40 kt. Seas 18 ft.
.FRI NIGHT...SW wind 35 kt. Seas 18 ft.
.SAT...W wind 35 kt. Seas 21 ft.
.SAT NIGHT...NW wind 20 kt. Seas 17 ft.
.SUN...W wind 20 kt. Seas 12 ft.
.MON...N wind 15 kt. Seas 8 ft.
.TUE...E wind 20 kt. Seas 10 ft.

$$

PKZ177-031300-
Adak to Kiska-
345 PM AKDT Thu Apr 2 2020

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...S wind 45 kt. Seas 19 ft. Rain.
.FRI...SW wind 45 kt. Seas 22 ft. Rain.
.FRI NIGHT...SW wind 45 kt. Seas 25 ft.
.SAT...W wind 40 kt. Seas 25 ft.
.SAT NIGHT...NW wind 20 kt. Seas 16 ft.
.SUN...SW wind 25 kt. Seas 10 ft.
.MON THROUGH TUE...SE wind 25 kt. Seas 11 ft.

$$

PKZ178-031300-
Kiska to Attu-
345 PM AKDT Thu Apr 2 2020

...STORM WARNING FRIDAY NIGHT...

.TONIGHT...S wind 45 kt. Seas 22 ft. Rain.
.FRI...SW wind 45 kt. Seas 22 ft building to 29 ft in the
afternoon. Rain.
.FRI NIGHT...SW wind 50 kt. Seas 29 ft. Rain.
.SAT...NW wind 30 kt. Seas 22 ft.
.SAT NIGHT...SW wind 25 kt. Seas 15 ft.
.SUN...SW wind 25 kt. Seas 11 ft.
.MON THROUGH TUE...E wind 25 kt. Seas 12 ft.

$$

PKZ179-031300-
Pribilof Islands Near Shore Waters-
345 PM AKDT Thu Apr 2 2020

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

.TONIGHT...SW wind 30 kt. Seas 11 ft. Rain and snow.
.FRI...SW wind 40 kt. Seas 17 ft. Rain.
.FRI NIGHT...SW wind 40 kt. Seas 20 ft.
.SAT...SW wind 35 kt. Seas 21 ft.
.SAT NIGHT...W wind 35 kt. Seas 21 ft.
.SUN...SW wind 30 kt. Seas 17 ft.
.MON...W wind 20 kt. Seas 10 ft.
.TUE...Variable wind 10 kt. Seas 6 ft.

$$

PKZ180-031300-
Kuskokwim Delta and Etolin Strait-
345 PM AKDT Thu Apr 2 2020

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

.TONIGHT...SW wind 25 kt. Seas in ice free waters 3 ft.
.FRI...S wind 30 kt. Seas in ice free waters 4 ft. Snow and rain.
.FRI NIGHT...SW wind 30 kt. Seas in ice free waters 6 ft. Rain.
.SAT...S wind 30 kt. Seas in ice free waters 5 ft.
.SAT NIGHT...SW wind 35 kt. Seas in ice free waters 6 ft.
.SUN...SW wind 30 kt. Seas in ice free waters 5 ft.
.MON...W wind 20 kt. Seas in ice free waters 2 ft.
.TUE...W wind 15 kt. Seas in ice free waters 2 ft.

$$

PKZ181-031300-
North and West of Nunivak Island-
345 PM AKDT Thu Apr 2 2020

...BRISK WIND ADVISORY THROUGH FRIDAY NIGHT...

.TONIGHT...SW wind 25 kt.
.FRI...S wind 30 kt. Snow and rain.
.FRI NIGHT...S wind 30 kt. Rain.
.SAT...S wind 35 kt.
.SAT NIGHT...SW wind 30 kt.
.SUN...W wind 30 kt.
.MON...W wind 20 kt.
.TUE...Variable wind 10 kt.

$$

PKZ185-031300-
Saint Matthew Island Waters-
345 PM AKDT Thu Apr 2 2020

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

.TONIGHT...W wind 30 kt becoming SW 20 kt after midnight. Seas
12 ft. Snow.
.FRI...SE wind 30 kt. Seas 11 ft. Rain and snow.
.FRI NIGHT...S wind 30 kt. Seas 15 ft. Rain and snow.
.SAT...SW wind 35 kt. Seas 20 ft.
.SAT NIGHT...W wind 40 kt. Seas 19 ft.
.SUN...W wind 40 kt. Seas 18 ft.
.MON...W wind 20 kt. Seas 6 ft.
.TUE...Variable wind 10 kt. Seas 6 ft.

$$

057 
FZAK52 PAFC 031147
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
347 AM AKDT Fri Apr 3 2020

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.

PKZ199-040045-
347 AM AKDT Fri Apr 3 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 978 mb low 380 nm SW of Shemya will move to 370 nm NE of Shemya
at 989 mb Sat morning then move into the Bering Strait by Sun
morning.

$$

PKZ150-040045-
South of the AK Peninsula Sitkinak to Castle Cape-
347 AM AKDT Fri Apr 3 2020

...SMALL CRAFT ADVISORY TODAY AND SATURDAY...

.TODAY...W wind 25 kt. Seas 7 ft.
.TONIGHT...W wind 20 kt. Seas 6 ft.
.SAT...SW wind 30 kt. Seas 7 ft.
.SAT NIGHT...W wind 30 kt. Seas 8 ft.
.SUN...W wind 25 kt. Seas 8 ft.
.MON...N wind 20 kt. Seas 11 ft.
.TUE...NW wind 25 kt. Seas 8 ft.

$$

PKZ155-040045-
South of the AK Peninsula Castle Cape to Cape Sarichef-
347 AM AKDT Fri Apr 3 2020

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...SW wind 25 kt. Seas 7 ft.
.TONIGHT...SW wind 25 kt. Seas 7 ft.
.SAT...SW wind 25 kt. Seas 8 ft.
.SAT NIGHT...W wind 25 kt. Seas 9 ft.
.SUN...NW wind 20 kt. Seas 9 ft.
.MON THROUGH TUE...NW wind 20 kt. Seas 8 ft.

$$

PKZ160-040045-
Bristol Bay-
347 AM AKDT Fri Apr 3 2020

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SW wind 25 kt. Seas in ice free waters 4 ft. Freezing
spray.
.TONIGHT...SW wind 30 kt. Seas in ice free waters 5 ft.
.SAT...S wind 20 kt. Seas in ice free waters 4 ft.
.SAT NIGHT...SW wind 30 kt. Seas in ice free waters 6 ft.
.SUN...W wind 30 kt. Seas in ice free waters 6 ft.
.MON...W wind 20 kt. Seas in ice free waters 5 ft.
.TUE...NW wind 20 kt. Seas in ice free waters 5 ft.

$$

PKZ165-040045-
Port Heiden to Cape Sarichef-
347 AM AKDT Fri Apr 3 2020

...GALE WARNING TODAY...

.TODAY...SW wind 25 kt increasing to 35 kt in the afternoon. Seas
11 ft.
.TONIGHT...SW wind 30 kt. Seas 12 ft.
.SAT...S wind 30 kt. Seas 13 ft.
.SAT NIGHT...W wind 30 kt. Seas 16 ft.
.SUN...W wind 25 kt. Seas 15 ft.
.MON...W wind 15 kt. Seas 13 ft.
.TUE...NW wind 20 kt. Seas 8 ft.

$$

PKZ170-040045-
Cape Sarichef to Nikolski Bering Side-
347 AM AKDT Fri Apr 3 2020

...GALE WARNING THROUGH SATURDAY...

.TODAY...SW wind 35 kt. Seas 13 ft.
.TONIGHT...SW wind 35 kt. Seas 14 ft.
.SAT...S wind 35 kt. Seas 15 ft.
.SAT NIGHT...W wind 30 kt. Seas 18 ft.
.SUN...W wind 25 kt. Seas 15 ft.
.MON...NW wind 20 kt. Seas 12 ft.
.TUE...NW wind 15 kt. Seas 7 ft.

$$

PKZ171-040045-
Unalaska Bay-
347 AM AKDT Fri Apr 3 2020

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SW wind 20 kt increasing to 30 kt in the afternoon. Seas
2 ft building to 4 ft in the afternoon.
.TONIGHT...SW wind 30 kt. Seas 5 ft.
.SAT...S wind 20 kt. Seas 3 ft.
.SAT NIGHT...W wind 20 kt. Seas 3 ft.
.SUN...W wind 25 kt. Seas 3 ft.
.MON THROUGH TUE...NW wind 15 kt. Seas 5 ft.

$$

PKZ172-040045-
Cape Sarichef to Nikolski Pacific Side-
347 AM AKDT Fri Apr 3 2020

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...SW wind 25 kt. Seas 7 ft.
.TONIGHT...SW wind 30 kt. Seas 8 ft.
.SAT...SW wind 30 kt. Seas 11 ft.
.SAT NIGHT...W wind 25 kt. Seas 12 ft.
.SUN...NW wind 20 kt. Seas 11 ft.
.MON THROUGH TUE...N wind 20 kt. Seas 7 ft.

$$

PKZ173-040045-
Nikolski to Seguam Island Bering Side-
347 AM AKDT Fri Apr 3 2020

...GALE WARNING THROUGH SATURDAY...

.TODAY...S wind 30 kt becoming SW 40 kt in the afternoon. Seas
14 ft.
.TONIGHT...SW wind 35 kt. Seas 14 ft.
.SAT...SW wind 35 kt. Seas 18 ft.
.SAT NIGHT...W wind 25 kt. Seas 17 ft.
.SUN THROUGH MON...NW wind 20 kt. Seas 12 ft.
.TUE...SW wind 15 kt. Seas 8 ft.

$$

PKZ174-040045-
Nikolski to Seguam Island Pacific Side-
347 AM AKDT Fri Apr 3 2020

...GALE WARNING TODAY...

.TODAY...S wind 25 kt becoming SW 35 kt in the afternoon. Seas
10 ft.
.TONIGHT...S wind 30 kt. Seas 14 ft.
.SAT...SW wind 30 kt. Seas 16 ft.
.SAT NIGHT...NW wind 20 kt. Seas 15 ft.
.SUN...NW wind 15 kt. Seas 12 ft.
.MON...NW wind 20 kt. Seas 10 ft.
.TUE...NE wind 20 kt. Seas 8 ft.

$$

PKZ175-040045-
Seguam Island to Adak Bering Side-
347 AM AKDT Fri Apr 3 2020

...STORM WARNING TODAY...

.TODAY...S wind 50 kt. Seas 17 ft.
.TONIGHT...SW wind 40 kt. Seas 16 ft.
.SAT...SW wind 40 kt. Seas 19 ft.
.SAT NIGHT...NW wind 25 kt. Seas 15 ft.
.SUN...W wind 15 kt. Seas 13 ft.
.MON...NW wind 15 kt. Seas 8 ft.
.TUE...S wind 25 kt. Seas 8 ft.

$$

PKZ176-040045-
Seguam Island to Adak Pacific Side-
347 AM AKDT Fri Apr 3 2020

...GALE WARNING THROUGH SATURDAY...

.TODAY...S wind 40 kt. Seas 18 ft.
.TONIGHT...SW wind 35 kt. Seas 18 ft.
.SAT...SW wind 35 kt. Seas 21 ft.
.SAT NIGHT...NW wind 20 kt. Seas 16 ft.
.SUN...W wind 15 kt. Seas 11 ft.
.MON...N wind 20 kt. Seas 8 ft.
.TUE...SE wind 25 kt. Seas 10 ft.

$$

PKZ177-040045-
Adak to Kiska-
347 AM AKDT Fri Apr 3 2020

...GALE WARNING THROUGH SATURDAY...

.TODAY...SW wind 45 kt. Seas 22 ft. Rain.
.TONIGHT...SW wind 45 kt. Seas 25 ft.
.SAT...W wind 40 kt diminishing to 25 kt in the afternoon. Seas
24 ft.
.SAT NIGHT...NW wind 20 kt. Seas 16 ft.
.SUN...W wind 20 kt. Seas 11 ft.
.MON...NE wind 20 kt. Seas 10 ft.
.TUE...SE wind 25 kt. Seas 12 ft.

$$

PKZ178-040045-
Kiska to Attu-
347 AM AKDT Fri Apr 3 2020

...STORM WARNING TONIGHT...

.TODAY...SW wind 45 kt. Seas 22 ft building to 29 ft in the
afternoon. Rain.
.TONIGHT...W wind 50 kt. Seas 29 ft. Snow.
.SAT...NW wind 30 kt. Seas 23 ft.
.SAT NIGHT...SW wind 25 kt. Seas 15 ft.
.SUN...W wind 25 kt. Seas 10 ft.
.MON THROUGH TUE...SE wind 30 kt. Seas 12 ft.

$$

PKZ179-040045-
Pribilof Islands Near Shore Waters-
347 AM AKDT Fri Apr 3 2020

...GALE WARNING THROUGH SATURDAY...

.TODAY...SW wind 40 kt. Seas 17 ft. Rain.
.TONIGHT...SW wind 40 kt. Seas 20 ft.
.SAT...SW wind 35 kt. Seas 22 ft.
.SAT NIGHT...W wind 35 kt. Seas 23 ft.
.SUN...W wind 30 kt. Seas 18 ft.
.MON...W wind 25 kt. Seas 10 ft.
.TUE...Variable wind 10 kt. Seas 6 ft.

$$

PKZ180-040045-
Kuskokwim Delta and Etolin Strait-
347 AM AKDT Fri Apr 3 2020

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...S wind 30 kt. Seas in ice free waters 5 ft. Snow and
rain.
.TONIGHT...S wind 30 kt. Seas in ice free waters 6 ft. Rain.
.SAT...S wind 30 kt. Seas in ice free waters 5 ft.
.SAT NIGHT...SW wind 35 kt. Seas in ice free waters 6 ft.
.SUN...W wind 30 kt. Seas in ice free waters 5 ft.
.MON THROUGH TUE...NW wind 15 kt. Seas in ice free waters 2 ft.

$$

PKZ181-040045-
North and West of Nunivak Island-
347 AM AKDT Fri Apr 3 2020

...GALE WARNING SATURDAY...

.TODAY...S wind 30 kt. Snow and rain.
.TONIGHT...S wind 30 kt. Rain.
.SAT...S wind 35 kt. Snow and rain.
.SAT NIGHT...SW wind 35 kt.
.SUN...W wind 35 kt.
.MON...W wind 15 kt.
.TUE...Variable wind 10 kt.

$$

PKZ185-040045-
Saint Matthew Island Waters-
347 AM AKDT Fri Apr 3 2020

...GALE WARNING SATURDAY...

.TODAY...SE wind 30 kt. Seas 11 ft. Rain and snow.
.TONIGHT...S wind 30 kt. Seas 15 ft. Snow and rain.
.SAT...W wind 35 kt. Seas 19 ft. Snow.
.SAT NIGHT...W wind 40 kt. Seas 19 ft.
.SUN...W wind 35 kt. Seas 18 ft.
.MON...W wind 15 kt. Seas 7 ft.
.TUE...S wind 15 kt. Seas 6 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
444 PM AKDT Tue Mar 31 2020

.ANALYSIS AND UPPER LEVELS...
A short-wave ridge has moved over Southcentral Alaska, with
widespread sunny skies and generally light winds. A long-wave
trough encompasses the Bering Sea and western Alaska. The feature
of most interest is a surface low along the Alaska Peninsula,
which has been tracking very slowly northeastward. Rain is falling
across the southern Alaska Peninsula, and slowly spreading toward
Bristol Bay, where a colder air mass is in place and will mostly
lead to snow as precipitation first arrives this afternoon or
evening. Meanwhile, a short-wave trough is digging southeastward
across the western Bering Sea and into the North Pacific. This is
leading to amplification of the upper level flow, which will cause
the surface low along the Alaska Peninsula to take a more northerly
track across the Alaska Peninsula and toward Bristol Bay. There
are a few showers ahead of the upper short-wave crossing the
Bering, but overall weather conditions across the Bering and
Aleutians are benign.

&&

.MODEL DISCUSSION...
Models are in good agreement with large scale features through
Friday. The primary forecast challenge will be precipitation type
and snow accumulation, as these become more difficult late in the
season due to the increasing sun angle and solar radiation.

&&

.AVIATION...
PANC...VFR conditions and light winds will persist.

&&

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

A return to a more unsettled pattern is in store for all of
southcentral Alaska and Kodiak Island, as a series of disturbances
cross the region. The first pair of disturbances is a jet streak
in the northern jet stream, currently lifting from the coastal
regions of the Yukon Delta towards the North Slope, and a
southern jet streak rounding the base of a ridge centered in the
north central Pacific. This southern disturbance is currently
south of Cold Bay and is heading for Kodiak Island.

This places Kodiak island, the Mat-Su Valleys, and the Anchorage
Bowl/Kenai Peninsula in a coupled jet region to some extent
(spacing between the northern and southern streams is a little
further than what you'd normally prefer to see), allowing
precipitation to continue to expand in coverage through at least
Wednesday morning. This is also evident on the latest infrared
satellite loop, as it shows cloud top cooling commencing.

As we head into Wednesday afternoon and Thursday morning, a lead
vorticity lobe (another type of disturbance aloft) will pivot
across the region that's attached to a Siberian mid-level low,
followed by a deepening trough that dives from the Kuskokwim Delta
towards the southwestern Gulf. This latter feature has shown a
deeper signature in the latest numerical runs, as energy in the
jet stream from the Siberian low gets infused into it as it
enters our neck of the woods. This places all of southcentral in a
favorable left exit region, with cyclogenesis (low pressure
development) occurring in the base of the trough over the Gulf by
Friday. These features will be good sources of lift in an
increasingly moist atmosphere.

The net affect of all this is precipitation will affect all of the
region at some point during the next few days, with snow being the
predominating precipitation type for the interior mainland, aside
from near the Cook Inlet where sufficient warming may allow for a
brief mix of rain and snow to occur during peak heating on
Thursday, and near the coastal locations of the Gulf.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2...Wed and Thu)...
A weak closed low is drifting across the Alaska Peninsula and
pushing a frontal system onto the coast of Bristol Bay this
evening. This will bring light snow and gusty winds to the area
through the evening. However, the system will also bring some
warmer air, especially in locations where winds shift out of the
southeast (King Salmon, Iliamna). This will allow rain to mix in
with the snow and limit potential accumulations for many
population centers. The other factors that will keep
accumulations in check will be the sun angle and length of day. As
we move into April, significant accumulating snows become harder
to come by. That said, the area north and west of King Salmon may
see several inches of snow.

This system now appears to hang up along the Alaska Range longer
into Thu. We have increased PoPs over those interior locations
Thu with a deep (albeit fast-moving) trough, cold air advection,
and moderate southwest flow. This feature holds on until a much
stronger shortwave plows into SW AK from the Bering Strait. This
final system won't have much moisture associated with it, but it
will bring a robust, reinforcing shot of cold air. After a final
passing shot of snow, there will be a short-lived lull in the
active pattern for Fri before another system arrives for the
weekend.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2...Wed and
Thu)...
A weak closed low will slide over the Alaska Peninsula while
weather remains relatively quiet over the Bering to start this
period. The low will continue to keep low ceilings and mostly rain
(mixed with some snow at higher elevations) along the Alaska
Peninsula tonight. A developing inverted trough will help to keep
light rain falling from Sand Point east Wed night into Thu. Active
weather will resume over the Bering courtesy of a potent shortwave
tracking east off the Kamchatka Peninsula. This should bring gale
force winds to much of the Bering Sea late Wed into Thu. The next
system will drive up from the North Pacific into the Western
Aleutians late Thu into Fri. We have introduced some storm force
gusts with this feature. It will also bring very warm air (850 mb
temperatures at 6C) and widespread moderate rain.

&&

.MARINE (Days 3 through 5/Friday through Sunday)...

Bering Sea/Aleutians...
A large and strong storm system approaches the Bering from the
North Pacific on Friday. There is a fairly large disagreement with
respect to how fast the system is moving, though there is
consistency with the system tracking northeastward from the
western Bering/Aleutians into the central Bering. Gale force winds
are expected Friday afternoon and evening across the western
Aleutians. There is low to moderate confidence that these gale
force sustained winds will reach the central Aleutians. Confidence
in the overall forecast rapidly degrades on Saturday as large
discrepancies exist between guidance. The forecast challenge
during this period will be the location of gale force sustained
winds as different solutions show gales, however they show these
gales are in different portions of the Bering.

Gulf of Alaska...
Uncertainty increases on Friday as solutions show a weak low
developing in the northern Gulf, though solutions vary with the
placement and intensity of the low center. There is a chance that
this low will produce gale force northwesterly gap winds at times
through the straits in the western Gulf on Friday. There is low
confidence in the wind forecast on Saturday, especially across the
western Gulf as solutions show significant differences in a low
over the central to eastern Bering.

&&

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

The upper ridging over the Bering is expected to move over the
Alaskan mainland on Saturday which will result in quiet weather
across the area. This upper ridging will not last long as guidance
is consistent with a second upper trough moving over the Alaskan
mainland Sunday afternoon. There is a high degree of variation in
the magnitude of this incoming upper trough but we can infer this
will mean colder than normal temperatures for the region. Guidance
shows the upper trough remaining in place over the Alaskan mainland
on Monday and Tuesday which will allow for these cold temperatures
to continue across the area.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Gale 178. Heavy Freezing Spray 180.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...SEB
SOUTHCENTRAL ALASKA...PD
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...MSO
MARINE/LONG TERM...ED