Gale Warning 313, NWS Anchorage, AK

184 
FZAK52 PAFC 222348
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
348 PM AKDT Mon Apr 22 2019

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.

PKZ199-231230-
348 PM AKDT Mon Apr 22 2019
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A front Monday afternoon in the eastern Bering moves into the 
Central Bering through Wed morning. A 1008 mb low 70 nm southwest
of Cape Newenham Tue afternoon moves into the western Gulf by Wed
afternoon.

$$

PKZ150-231230-
South of the AK Peninsula Sitkinak to Castle Cape-
348 PM AKDT Mon Apr 22 2019

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...W wind 30 kt. Seas 10 ft.
.TUE...W wind 15 kt. Seas 7 ft.
.TUE NIGHT...S wind 20 kt. Seas 7 ft.
.WED...NE wind 20 kt. Seas 6 ft.
.WED NIGHT...N wind 15 kt. Seas 5 ft.
.THU THROUGH FRI...N wind 15 kt. Seas 5 ft.
.SAT...NE wind 15 kt. Seas 4 ft.

$$

PKZ155-231230-
South of the AK Peninsula Castle Cape to Cape Sarichef-
348 PM AKDT Mon Apr 22 2019

...GALE WARNING TUESDAY AND TUESDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 9 ft. Snow showers.
.TUE...W wind 25 kt increasing to 35 kt in the afternoon. From the
Shumagin Islands E, W wind 25 kt. Seas 10 ft. Snow.
.TUE NIGHT...W wind 35 kt except SW 25 kt from the Shumagin
Islands E. Seas 10 ft.
.WED...NW wind 25 kt. Seas 7 ft.
.WED NIGHT...N wind 15 kt. Seas 6 ft.
.THU...N wind 15 kt. Seas 4 ft.
.FRI...E wind 20 kt. Seas 3 ft.
.SAT...E wind 25 kt. Seas 4 ft.

$$

PKZ160-231230-
Bristol Bay-
348 PM AKDT Mon Apr 22 2019

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...W wind 30 kt. Seas 9 ft. Freezing spray.
.TUE...SW wind 20 kt. Seas 6 ft. Freezing spray.
.TUE NIGHT...SE wind 15 kt. Seas 5 ft.
.WED AND WED NIGHT...N wind 15 kt. Seas 4 ft.
.THU...NW wind 15 kt. Seas 2 ft.
.FRI THROUGH SAT...N wind 10 kt. Seas 3 ft.

$$

PKZ165-231230-
Port Heiden to Cape Sarichef-
348 PM AKDT Mon Apr 22 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 9 ft. Snow showers.
.TUE...W wind 30 kt except SW 25 kt from Port Moller E. Seas 8 ft.
Snow.
.TUE NIGHT...NW wind 30 kt. From Port Moller E, S wind 15 kt
becoming NE after midnight. Seas 8 ft.
.WED...N wind 20 kt. Seas 7 ft.
.WED NIGHT...Variable wind 10 kt. Seas 5 ft.
.THU THROUGH FRI...E wind 15 kt. Seas 3 ft.
.SAT...NE wind 20 kt. Seas 5 ft.

$$

PKZ170-231230-
Cape Sarichef to Nikolski Bering Side-
348 PM AKDT Mon Apr 22 2019

...GALE WARNING TUESDAY...

.TONIGHT...W wind 30 kt. Seas 9 ft. Snow showers.
.TUE...W wind 35 kt. Seas 11 ft. Snow.
.TUE NIGHT...NW wind 30 kt. Seas 10 ft.
.WED...NW wind 25 kt. Seas 9 ft.
.WED NIGHT...N wind 15 kt. Seas 6 ft.
.THU...NE wind 15 kt. Seas 4 ft.
.FRI THROUGH SAT...E wind 20 kt. Seas 6 ft.

$$

PKZ171-231230-
Unalaska Bay-
348 PM AKDT Mon Apr 22 2019

...GALE WARNING TUESDAY AND TUESDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 5 ft. Snow showers.
.TUE...W wind 30 kt increasing to 40 kt in the afternoon. Seas 6
ft. Snow showers.
.TUE NIGHT...NW wind 35 kt diminishing to 25 kt after midnight.
Seas 5 ft building to 9 ft after midnight. Snow showers.
.WED...NW wind 25 kt. Seas 9 ft.
.WED NIGHT...NW wind 15 kt. Seas 5 ft.
.THU...NE wind 10 kt. Seas 3 ft.
.FRI THROUGH SAT...E wind 15 kt. Seas 1 foot.

$$

PKZ172-231230-
Cape Sarichef to Nikolski Pacific Side-
348 PM AKDT Mon Apr 22 2019

...GALE WARNING TUESDAY...

.TONIGHT...W wind 30 kt. Seas 8 ft.
.TUE...W wind 35 kt. Seas 9 ft.
.TUE NIGHT...W wind 30 kt. Seas 8 ft.
.WED...NW wind 25 kt. Seas 7 ft.
.WED NIGHT...N wind 15 kt. Seas 5 ft.
.THU...NE wind 20 kt. Seas 4 ft.
.FRI THROUGH SAT...NE wind 25 kt. Seas 7 ft.

$$

PKZ173-231230-
Nikolski to Seguam Island Bering Side-
348 PM AKDT Mon Apr 22 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 9 ft.
.TUE...NW wind 30 kt. Seas 8 ft.
.TUE NIGHT...NW wind 25 kt. Seas 9 ft.
.WED...NW wind 20 kt. Seas 8 ft.
.WED NIGHT...Variable wind 10 kt. Seas 5 ft.
.THU...E wind 15 kt. Seas 4 ft.
.FRI...E wind 20 kt. Seas 7 ft.
.SAT...E wind 20 kt. Seas 11 ft.

$$

PKZ174-231230-
Nikolski to Seguam Island Pacific Side-
348 PM AKDT Mon Apr 22 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 8 ft.
.TUE...NW wind 25 kt. Seas 8 ft.
.TUE NIGHT...NW wind 25 kt. Seas 7 ft.
.WED...NW wind 20 kt. Seas 6 ft.
.WED NIGHT...NE wind 15 kt. Seas 5 ft.
.THU...E wind 20 kt. Seas 6 ft.
.FRI THROUGH SAT...NE wind 25 kt. Seas 9 ft.

$$

PKZ175-231230-
Seguam Island to Adak Bering Side-
348 PM AKDT Mon Apr 22 2019

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW wind 25 kt. Seas 7 ft.
.TUE...NW wind 20 kt. Seas 6 ft.
.TUE NIGHT...NW wind 15 kt. Seas 7 ft.
.WED AND WED NIGHT...NE wind 15 kt. Seas 6 ft.
.THU...E wind 15 kt. Seas 4 ft.
.FRI THROUGH SAT...E wind 20 kt. Seas 7 ft.

$$

PKZ176-231230-
Seguam Island to Adak Pacific Side-
348 PM AKDT Mon Apr 22 2019

.TONIGHT...W wind 20 kt. Seas 5 ft.
.TUE...NW wind 20 kt. Seas 5 ft.
.TUE NIGHT...NW wind 15 kt. Seas 4 ft.
.WED...NE wind 15 kt. Seas 5 ft.
.WED NIGHT...NE wind 20 kt. Seas 6 ft.
.THU...E wind 20 kt. Seas 7 ft.
.FRI THROUGH SAT...E wind 25 kt. Seas 12 ft.

$$

PKZ177-231230-
Adak to Kiska-
348 PM AKDT Mon Apr 22 2019

.TONIGHT...NW wind 15 kt. Seas 5 ft.
.TUE...Variable wind 10 kt. Seas 4 ft.
.TUE NIGHT...E wind 15 kt. Seas 4 ft.
.WED AND WED NIGHT...E wind 20 kt. Seas 7 ft.
.THU...SE wind 20 kt. Seas 7 ft.
.FRI...SE wind 20 kt. Seas 13 ft.
.SAT...E wind 20 kt. Seas 13 ft.

$$

PKZ178-231230-
Kiska to Attu-
348 PM AKDT Mon Apr 22 2019

.TONIGHT...NW wind 15 kt. Seas 5 ft.
.TUE...Variable wind 10 kt. Seas 4 ft.
.TUE NIGHT...SE wind 15 kt. Seas 4 ft.
.WED...SE wind 20 kt. Seas 7 ft.
.WED NIGHT...SE wind 25 kt. Seas 8 ft.
.THU...S wind 35 kt. Seas 11 ft.
.FRI THROUGH SAT...SE wind 30 kt. Seas 11 ft.

$$

PKZ179-231230-
Pribilof Islands Near Shore Waters-
348 PM AKDT Mon Apr 22 2019

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 25 kt becoming W 35 kt after midnight. Seas 9
ft. Freezing spray. Snow.
.TUE...NW wind 30 kt. Seas 10 ft. Freezing spray. Snow.
.TUE NIGHT...NW wind 30 kt. Seas 9 ft.
.WED...NW wind 20 kt. Seas 7 ft.
.WED NIGHT...N wind 15 kt. Seas 4 ft.
.THU...Variable wind 10 kt. Seas 3 ft.
.FRI...SE wind 15 kt. Seas 8 ft.
.SAT...E wind 15 kt. Seas 12 ft.

$$

PKZ180-231230-
Kuskokwim Delta and Etolin Strait-
348 PM AKDT Mon Apr 22 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...W wind 30 kt. Seas 9 ft. Freezing spray.
.TUE...W wind 25 kt becoming E 15 kt in the afternoon. Seas 7 ft.
Freezing spray.
.TUE NIGHT...E wind 15 kt. Seas 5 ft.
.WED...N wind 15 kt. Seas 5 ft.
.WED NIGHT...N wind 10 kt. Seas 3 ft.
.THU THROUGH SAT...NE wind 10 kt. Seas 4 ft.

$$

PKZ181-231230-
North and West of Nunivak Island-
348 PM AKDT Mon Apr 22 2019

...HEAVY FREEZING SPRAY WARNING TONIGHT...
...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...NW wind 30 kt. Seas 8 ft. Freezing spray. Heavy freezing
spray north of Nunivak Island. Snow.
.TUE...N wind 25 kt. Seas 7 ft. Freezing spray.
.TUE NIGHT...N wind 20 kt. Seas 6 ft. Freezing spray.
.WED...NW wind 15 kt. Seas 4 ft.
.WED NIGHT...Variable wind 10 kt. Seas 3 ft.
.THU...Variable wind 10 kt. Seas 2 ft.
.FRI...SE wind 15 kt. Seas 6 ft.
.SAT...Variable wind 10 kt. Seas 8 ft.

$$

PKZ185-231230-
Saint Matthew Island Waters-
348 PM AKDT Mon Apr 22 2019

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING TONIGHT...

.TONIGHT...NW wind 35 kt. Seas 11 ft. Freezing spray. Heavy freezing
spray north of Saint Matthew Island. Snow.
.TUE...N wind 30 kt. Seas 10 ft. Freezing spray.
.TUE NIGHT...NW wind 25 kt. Seas 7 ft. Freezing spray.
.WED...NW wind 20 kt. Seas 5 ft.
.WED NIGHT...NW wind 15 kt. Seas 3 ft.
.THU...SW wind 25 kt. Seas 9 ft.
.FRI...S wind 25 kt. Seas 11 ft.
.SAT...S wind 20 kt. Seas 11 ft.

$$

002 
FZAK52 PAFC 231146
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
346 AM AKDT Tue Apr 23 2019

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.

PKZ199-240045-
346 AM AKDT Tue Apr 23 2019
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 1002 mb low 50 nm west of Hooper Bay moves to 60 nm Northwest of
Cold Bay at 1010 mb Tue night then merges with a 1007 mb low 170
nm south of Kodiak City Wed morning. This low moves to 110 nm East
of Kodiak City at 1005 mb for Thu morning. Its front tracks over 
the Eastern Bering and Southwest Alaska through Thu morning. High 
pressure moves into the Western Bering for Thu morning.

$$

PKZ150-240045-
South of the AK Peninsula Sitkinak to Castle Cape-
346 AM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY TODAY AND WEDNESDAY...

.TODAY...W wind 25 kt, except variable 10 kt N of Chirikof Island. 
Seas 8 ft. Slight chance of thunderstorms. 
.TONIGHT...W wind 15 kt, except E 15 kt N of Chirikof Island. Seas 7 ft.
Slight chance of thunderstorms.
.WED...NW wind 25 kt. Seas 9 ft.
.WED NIGHT...N wind 25 kt. Seas 9 ft.
.THU...NW wind 20 kt. Seas 6 ft.
.FRI...N wind 15 kt. Seas 5 ft.
.SAT...E wind 15 kt. Seas 9 ft.

$$

PKZ155-240045-
South of the AK Peninsula Castle Cape to Cape Sarichef-
346 AM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...W wind 25 kt. Seas 8 ft. Slight chance of thunderstorms. 
.TONIGHT...W wind 25 kt. Seas 8 ft.
.WED...NW wind 25 kt except NE 15 kt W of the Shumagin Islands. Seas
8 ft.
.WED NIGHT...N wind 15 kt. Seas 5 ft.
.THU...NE wind 15 kt. Seas 4 ft.
.FRI THROUGH SAT...E wind 20 kt. Seas 11 ft.

$$

PKZ160-240045-
Bristol Bay-
346 AM AKDT Tue Apr 23 2019

.TODAY...W wind 20 kt diminishing to 10 kt in the afternoon. Seas 6 
ft. Freezing spray.
.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.WED...N wind 10 kt. Seas 3 ft.
.WED NIGHT...N wind 15 kt. Seas 3 ft.
.THU...NW wind 15 kt. Seas 2 ft.
.FRI...N wind 10 kt. Seas 1 foot.
.SAT...E wind 10 kt. Seas 2 ft.

$$

PKZ165-240045-
Port Heiden to Cape Sarichef-
346 AM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY TODAY..

.TODAY...NW wind 25 kt, except NW 15 kt W of Port Moller. Seas 7 ft.
.TONIGHT...NW wind 20 kt, except variable wind less than 10 kt 
W of Port Moller. Seas 7 ft.
.WED...Variable wind 10 kt. Seas 7 ft.
.WED NIGHT...Variable wind 10 kt. Seas 5 ft.
.THU...Variable wind 10 kt. Seas 4 ft.
.FRI THROUGH SAT...E wind 15 kt. Seas 3 ft.

$$

PKZ170-240045-
Cape Sarichef to Nikolski Bering Side-
346 AM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...NW wind 30 kt. Seas 9 ft.
.TONIGHT...NW wind 25 kt. Seas 9 ft.
.WED...N wind 15 kt. Seas 8 ft.
.WED NIGHT...Variable wind 10 kt. Seas 5 ft.
.THU THROUGH SAT...E wind 15 kt. Seas 5 ft.

$$

PKZ171-240045-
Unalaska Bay-
346 AM AKDT Tue Apr 23 2019

...GALE WARNING TONIGHT...

.TODAY...NW wind 25 kt. Seas 4 ft building to 7 ft in the
afternoon. Snow showers.
.TONIGHT...W wind 35 kt becoming NW 25 kt after midnight. Seas 7
ft. Snow showers.
.WED...NW wind 25 kt diminishing to 15 kt in the afternoon. Seas 8 
ft subsiding to 5 ft in the afternoon. Snow showers.
.WED NIGHT...NW wind 15 kt. Seas 3 ft.
.THU...NE wind 10 kt. Seas 3 ft.
.FRI...E wind 15 kt. Seas 2 ft.
.SAT...E wind 10 kt. Seas 2 ft.

$$

PKZ172-240045-
Cape Sarichef to Nikolski Pacific Side-
346 AM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 25 kt. Seas 8 ft.
.TONIGHT...NW wind 25 kt. Seas 8 ft.
.WED...NW wind 15 kt. Seas 7 ft.
.WED NIGHT...N wind 15 kt. Seas 4 ft.
.THU...NE wind 20 kt. Seas 6 ft.
.FRI...E wind 25 kt. Seas 12 ft.
.SAT...E wind 20 kt. Seas 12 ft.

$$

PKZ173-240045-
Nikolski to Seguam Island Bering Side-
346 AM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...NW wind 25 kt. Seas 9 ft.
.TONIGHT...NW wind 25 diminishing to 15 kt after midnight. Seas 9 ft.
.WED...N wind 15 kt. Seas 8 ft.
.WED NIGHT...NE wind 15 kt. Seas 5 ft.
.THU THROUGH FRI...E wind 15 kt. Seas 5 ft.
.SAT...SE wind 20 kt. Seas 6 ft.

$$

PKZ174-240045-
Nikolski to Seguam Island Pacific Side-
346 AM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NW wind 30 kt diminishing to 20 kt in the afternoon. Seas
8 ft.
.TONIGHT...NW wind 15 kt. Seas 7 ft.
.WED...NW wind 15 kt. Seas 6 ft.
.WED NIGHT...N wind 15 kt. Seas 5 ft.
.THU THROUGH FRI...E wind 25 kt. Seas 10 ft.
.SAT...E wind 20 kt. Seas 11 ft.

$$

PKZ175-240045-
Seguam Island to Adak Bering Side-
346 AM AKDT Tue Apr 23 2019

.TODAY...N wind 15 kt. Seas 6 ft.
.TONIGHT...Variable wind 10 kt. Seas 7 ft.
.WED...Variable wind 10 kt. Seas 6 ft.
.WED NIGHT...NE wind 15 kt. Seas 5 ft.
.THU...E wind 15 kt. Seas 4 ft.
.FRI...SE wind 15 kt. Seas 5 ft.
.SAT...SE wind 25 kt. Seas 6 ft.

$$

PKZ176-240045-
Seguam Island to Adak Pacific Side-
346 AM AKDT Tue Apr 23 2019

.TODAY...Variable wind 10 kt. Seas 5 ft.
.TONIGHT...Variable wind 10 kt. Seas 4 ft.
.WED...E wind 15 kt. Seas 5 ft.
.WED NIGHT...NE wind 20 kt. Seas 6 ft.
.THU THROUGH SAT...SE wind 20 kt. Seas 9 ft.

$$

PKZ177-240045-
Adak to Kiska-
346 AM AKDT Tue Apr 23 2019

.TODAY...Variable wind 10 kt. Seas 4 ft.
.TONIGHT...E wind 15 kt. Seas 5 ft.
.WED...E wind 20 kt. Seas 6 ft.
.WED NIGHT...E wind 20 kt. Seas 7 ft.
.THU...SE wind 20 kt. Seas 7 ft.
.FRI...S wind 25 kt. Seas 8 ft.
.SAT...S wind 30 kt. Seas 14 ft.

$$

PKZ178-240045-
Kiska to Attu-
346 AM AKDT Tue Apr 23 2019

.TODAY...Variable wind 10 kt. Seas 4 ft.
.TONIGHT...E wind 20 kt. Seas 5 ft.
.WED...E wind 20 kt. Seas 7 ft.
.WED NIGHT...SE wind 25 kt. Seas 8 ft.
.THU...S wind 35 kt. Seas 12 ft.
.FRI THROUGH SAT...S wind 30 kt. Seas 16 ft.

$$

PKZ179-240045-
Pribilof Islands Near Shore Waters-
346 AM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 25 kt. Seas 9 ft. Freezing spray. Snow showers.
.TONIGHT...NW wind 25 kt. Seas 9 ft.
.WED...NW wind 15 kt. Seas 6 ft.
.WED NIGHT...Variable wind 10 kt. Seas 4 ft.
.THU...Variable wind 10 kt. Seas 3 ft.
.FRI...SE wind 15 kt. Seas 4 ft.
.SAT...SE wind 20 kt. Seas 6 ft.

$$

PKZ180-240045-
Kuskokwim Delta and Etolin Strait-
346 AM AKDT Tue Apr 23 2019

.TODAY...W wind 20 kt becoming variable 10 kt in the afternoon. Seas
6 ft. Freezing spray.
.TONIGHT...Variable wind less than 10 kt. Seas 5 ft.
.WED...Variable wind less than 10 kt. Seas 3 ft.
.WED NIGHT...NW wind 10 kt. Seas 3 ft.
.THU...N wind 10 kt. Seas 2 ft.
.FRI...E wind 10 kt. Seas 2 ft.
.SAT...SE wind 20 kt. Seas 4 ft.

$$

PKZ181-240045-
North and West of Nunivak Island-
346 AM AKDT Tue Apr 23 2019

.TODAY...NW wind 20 kt, except variable less than 10 kt E of Nunivak
Island. Seas 6 ft. Freezing spray.
.TONIGHT...N wind 15 kt, except variable less the 10 kt E of Nunivak
Island. Seas 5 ft. Freezing spray.
.WED...Variable wind 10 kt. Seas 4 ft. Freezing spray.
.WED NIGHT...Variable wind 10 kt. Seas 3 ft.
.THU...Variable wind 10 kt. Seas 2 ft.
.FRI...SE wind 15 kt. Seas 3 ft.
.SAT...SE wind 20 kt. Seas 7 ft.

$$

PKZ185-240045-
Saint Matthew Island Waters-
346 AM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt. Seas 10 ft. Freezing spray.
.TONIGHT...N wind 25 kt. Seas 7 ft. Freezing spray.
.WED...NW wind 15 kt. Seas 5 ft. Freezing spray.
.WED NIGHT...NW wind 15 kt. Seas 3 ft.
.THU...SW wind 25 kt. Seas 3 ft.
.FRI THROUGH SAT...S wind 30 kt. Seas 18 ft.

$$

595 
FZAK52 PAFC 232259
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
259 PM AKDT Tue Apr 23 2019

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.

PKZ199-241130-
259 PM AKDT Tue Apr 23 2019
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A complex 1008 mb low 90 nm north of Cold Bay Tue afternoon moves
out of the eastern Bering by Wed afternoon. High pressure moves 
into the western Bering Wed morning and remains through Thu 
afternoon.

$$

PKZ150-241130-
South of the AK Peninsula Sitkinak to Castle Cape-
259 PM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 10 ft.
.WED...NW wind 30 kt. Seas 11 ft.
.WED NIGHT...N wind 20 kt. Seas 8 ft.
.THU...NW wind 20 kt. Seas 6 ft.
.THU NIGHT...NW wind 15 kt. Seas 5 ft.
.FRI...N wind 15 kt. Seas 4 ft.
.SAT THROUGH SUN...E wind 15 kt. Seas 9 ft.

$$

PKZ155-241130-
South of the AK Peninsula Castle Cape to Cape Sarichef-
259 PM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...W wind 25 kt. Seas 9 ft.
.WED...NW wind 25 kt diminishing to 15 kt in the afternoon. Seas
8 ft.
.WED NIGHT...N wind 15 kt. Seas 5 ft.
.THU AND THU NIGHT...NE wind 15 kt. Seas 4 ft.
.FRI THROUGH SAT...E wind 20 kt. Seas 11 ft.
.SUN...E wind 15 kt. Seas 8 ft.

$$

PKZ160-241130-
Bristol Bay-
259 PM AKDT Tue Apr 23 2019

.TONIGHT...NE wind 20 kt. Seas 4 ft.
.WED...NE wind 20 kt. Seas 4 ft.
.WED NIGHT...N wind 15 kt. Seas 3 ft.
.THU AND THU NIGHT...NW wind 15 kt. Seas 3 ft.
.FRI...N wind 10 kt. Seas 3 ft.
.SAT...E wind 10 kt. Seas 2 ft.
.SUN...SE wind 10 kt. Seas 2 ft.

$$

PKZ165-241130-
Port Heiden to Cape Sarichef-
259 PM AKDT Tue Apr 23 2019

.TONIGHT...NW wind 20 kt. Seas 7 ft.
.WED...NE wind 20 kt. Seas 6 ft.
.WED NIGHT...N wind 15 kt. Seas 6 ft.
.THU AND THU NIGHT...N wind 15 kt. Seas 4 ft.
.FRI THROUGH SUN...SE wind 15 kt. Seas 4 ft.

$$

PKZ170-241130-
Cape Sarichef to Nikolski Bering Side-
259 PM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...NW wind 25 kt. Seas 9 ft.
.WED...NW wind 20 kt. Seas 8 ft.
.WED NIGHT...N wind 15 kt. Seas 5 ft.
.THU AND THU NIGHT...E wind 15 kt. Seas 4 ft.
.FRI THROUGH SAT...E wind 15 kt. Seas 4 ft.
.SUN...SE wind 20 kt. Seas 6 ft.

$$

PKZ171-241130-
Unalaska Bay-
259 PM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...W wind 30 kt. Seas 4 ft.
.WED...NW wind 20 kt. Seas 7 ft.
.WED NIGHT...N wind 10 kt. Seas 3 ft.
.THU...NE wind 15 kt. Seas 4 ft.
.THU NIGHT...E wind 10 kt. Seas 2 ft.
.FRI THROUGH SAT...E wind 10 kt. Seas 2 ft.
.SUN...SE wind 15 kt. Seas 2 ft.

$$

PKZ172-241130-
Cape Sarichef to Nikolski Pacific Side-
259 PM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...W wind 25 kt. Seas 7 ft.
.WED...NW wind 20 kt. Seas 6 ft.
.WED NIGHT...NE wind 15 kt. Seas 4 ft.
.THU...NE wind 20 kt. Seas 5 ft.
.THU NIGHT...E wind 25 kt. Seas 6 ft.
.FRI...E wind 25 kt. Seas 12 ft.
.SAT...E wind 20 kt. Seas 12 ft.
.SUN...SE wind 15 kt. Seas 8 ft.

$$

PKZ173-241130-
Nikolski to Seguam Island Bering Side-
259 PM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW wind 25 kt. Seas 9 ft.
.WED...NW wind 15 kt. Seas 7 ft.
.WED NIGHT...N wind 15 kt. Seas 5 ft.
.THU...NE wind 15 kt. Seas 4 ft.
.THU NIGHT...E wind 20 kt. Seas 4 ft.
.FRI...E wind 15 kt. Seas 6 ft.
.SAT THROUGH SUN...SE wind 20 kt. Seas 6 ft.

$$

PKZ174-241130-
Nikolski to Seguam Island Pacific Side-
259 PM AKDT Tue Apr 23 2019

.TONIGHT...NW wind 20 kt. Seas 6 ft.
.WED...NW wind 15 kt. Seas 6 ft.
.WED NIGHT...NE wind 15 kt. Seas 6 ft.
.THU...NE wind 20 kt. Seas 5 ft.
.THU NIGHT...NE wind 25 kt. Seas 8 ft.
.FRI...NE wind 25 kt. Seas 12 ft.
.SAT...E wind 20 kt. Seas 11 ft.
.SUN...SE wind 20 kt. Seas 9 ft.

$$

PKZ175-241130-
Seguam Island to Adak Bering Side-
259 PM AKDT Tue Apr 23 2019

.TONIGHT...N wind 15 kt. Seas 7 ft.
.WED...N wind 15 kt. Seas 6 ft.
.WED NIGHT...NE wind 15 kt. Seas 5 ft.
.THU AND THU NIGHT...E wind 15 kt. Seas 4 ft.
.FRI...SE wind 15 kt. Seas 5 ft.
.SAT THROUGH SUN...S wind 25 kt. Seas 7 ft.

$$

PKZ176-241130-
Seguam Island to Adak Pacific Side-
259 PM AKDT Tue Apr 23 2019

.TONIGHT...NE wind 15 kt. Seas 4 ft.
.WED...NE wind 15 kt. Seas 5 ft.
.WED NIGHT...NE wind 20 kt. Seas 5 ft.
.THU AND THU NIGHT...NE wind 20 kt. Seas 7 ft.
.FRI THROUGH SUN...S wind 20 kt. Seas 10 ft.

$$

PKZ177-241130-
Adak to Kiska-
259 PM AKDT Tue Apr 23 2019

.TONIGHT...E wind 20 kt. Seas 6 ft.
.WED...E wind 20 kt. Seas 6 ft.
.WED NIGHT...E wind 20 kt. Seas 7 ft.
.THU...E wind 15 kt. Seas 6 ft.
.THU NIGHT...SE wind 25 kt. Seas 6 ft.
.FRI...S wind 25 kt. Seas 8 ft.
.SAT...S wind 30 kt. Seas 14 ft.
.SUN...S wind 25 kt. Seas 14 ft.

$$

PKZ178-241130-
Kiska to Attu-
259 PM AKDT Tue Apr 23 2019

.TONIGHT...E wind 20 kt. Seas 5 ft.
.WED...E wind 20 kt. Seas 7 ft.
.WED NIGHT...E wind 20 kt. Seas 7 ft.
.THU...SE wind 35 kt. Seas 10 ft.
.THU NIGHT...S wind 40 kt. Seas 13 ft.
.FRI...S wind 35 kt. Seas 15 ft.
.SAT...S wind 30 kt. Seas 17 ft.
.SUN...S wind 20 kt. Seas 13 ft.

$$

PKZ179-241130-
Pribilof Islands Near Shore Waters-
259 PM AKDT Tue Apr 23 2019

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW wind 25 kt. Seas 8 ft.
.WED...N wind 15 kt. Seas 6 ft.
.WED NIGHT...Variable wind 10 kt. Seas 4 ft.
.THU...Variable wind 10 kt. Seas 3 ft.
.THU NIGHT...Variable wind 10 kt. Seas 3 ft.
.FRI...SE wind 15 kt. Seas 4 ft.
.SAT THROUGH SUN...S wind 20 kt. Seas 7 ft.

$$

PKZ180-241130-
Kuskokwim Delta and Etolin Strait-
259 PM AKDT Tue Apr 23 2019

.TONIGHT...E wind 10 kt increasing to 15 kt after midnight. Seas
4 ft.
.WED...NE wind 15 kt becoming N in the afternoon. Seas 4 ft.
.WED NIGHT...NW wind 15 kt. Seas 3 ft.
.THU AND THU NIGHT...NW wind 15 kt. Seas 3 ft.
.FRI...N wind 10 kt. Seas 3 ft.
.SAT THROUGH SUN...SE wind 20 kt. Seas 5 ft.

$$

PKZ181-241130-
North and West of Nunivak Island-
259 PM AKDT Tue Apr 23 2019

.TONIGHT...N wind 15 kt. Seas 4 ft. Freezing spray.
.WED...Variable wind 10 kt. Seas 3 ft. Freezing spray.
.WED NIGHT...Variable wind 10 kt. Seas 3 ft.
.THU...Variable wind 10 kt. Seas 2 ft.
.THU NIGHT...Variable wind 10 kt. Seas 3 ft.
.FRI...S wind 15 kt. Seas 3 ft.
.SAT THROUGH SUN...S wind 20 kt. Seas 7 ft.

$$

PKZ185-241130-
Saint Matthew Island Waters-
259 PM AKDT Tue Apr 23 2019

.TONIGHT...N wind 20 kt. Seas 7 ft. Freezing spray.
.WED...NW wind 15 kt. Seas 4 ft. Freezing spray.
.WED NIGHT...NW wind 15 kt. Seas 3 ft.
.THU...Variable wind 10 kt. Seas 3 ft.
.THU NIGHT...SW wind 25 kt. Seas 3 ft.
.FRI...S wind 35 kt. Seas 16 ft.
.SAT...S wind 30 kt. Seas 19 ft.
.SUN...S wind 25 kt. Seas 19 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
421 PM AKDT Sun Apr 21 2019

.ANALYSIS AND UPPER LEVELS...
A low that has been moving across the Gulf has now tracked over
the Kenai Peninsula as it pushes off to the northwest. The front
associated with this low is bringing precipitation to areas all
along the north Gulf coast and western portions of the Alaska
Range. Areas near the water are seeing primarily rain while higher
elevations are seeing mostly snow. Cold air advection is
following behind the low which has helped bring snow to areas
around Kachemak Bay. Out west, cold northerly flow dominates the
central and eastern Bering while ridging is building in over the
western Aleutians.

&&

.MODEL DISCUSSION...
The models are in decent agreement with the main synoptic
features into the mid term. This includes locking in on the
position of a low moving into the eastern Gulf tonight, which has
been a challenge for the models to get a handle on the last
several model runs. Even though guidance is doing better handling
the synoptic features there are still some struggles with a
deformation zone over southwest Alaska this evening into Monday,
in particular with snow amounts and wind over the area.

&&

.AVIATION...
PANC...There are two main challenges for this forecast with the
first being the onset and duration of winds this afternoon. At
this point it looks more likely that Turnagain Arm winds will not
bend over the airport, but rather southerly winds from a low
moving through the area will move in as the Turnagain Arm winds
diminish. However, if the Turnagain Arm winds did move in then
southeast winds would come in and be stronger than the forecast.
The other challenge is with snow Monday afternoon and there is
still fairly high confidence that it should not drop conditions
below VFR, but it is possible.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
A strong low is moving inland around Cook Inlet, with the
associated low end storm force front already clearing the North
Gulf Coast. The strongest winds are now in PWS and will diminish
rapidly as the low moves inland. Southwest cold air advection will
impact Kachemak Bay through this evening before weakening. Cold
air advection will move up Cook Inlet, but with the modified
marine air, temps will not feel the effect of the advection until
Monday night. A second low moving inland around Yakutat will
spread more moisture northwest tonight through Monday, bringing
more rain and snow to the coast. Moisture will spread inland
through the Copper Basin and northern Susitna Valley, with chances
of snow dropping into Anchorage and the Mat Valley as well Monday
and Monday evening. However, accumulations will be light in lower
elevations with the best accumulations over higher
elevations/mountains. Snow shower threats will continue into
Tuesday, favoring the mountains, as upper troughing remains over
the region.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2/Tonight
through Tuesday)...
A sharp upper level short-wave and associated surface low in the
vicinity of Cook Inlet this afternoon will track westward across
interior Southwest Alaska tonight. Snow will persist all night
from interior Bristol Bay to the Kuskokwim Valley and spread
westward into the Kuskokwim Delta. Meanwhile, cold air advection
across the eastern Bering Sea combined with tightening pressure
gradients ahead of the surface low will lead to strengthening
winds along the coast, particularly along the Kuskokwim Delta
coast and Nunivak Island. All of this cold air and wind will
produce a steady stream of showers over the open waters along the
coast, so bordering villages can expect snow and blowing snow at
times. As the steady snow reaches Bethel and villages along the
lower Kuskokwim River overnight, expect blowing snow and reduced
visibilities. However, the worst conditions will develop along the
coast Monday morning as steady snow arrives and combines with
winds gusting 35 to 50 mph. A blizzard warning has been issued for
the coast and Nunivak Island from 7am to 7pm Monday. Snow will
move in from north to south along the coast, so expect blizzard
conditions to develop near Hooper Bay and Chevak first thing in
the morning, then spread to Toksook Bay and Mekoryuk by around
midday. As is typical in these scenarios, winds will accelerate
through Etolin Strait, so also expect some locally higher winds in
Toksook Bay and vicinity.

The upper level wave and surface low will head back south across
the Eastern Bering Sea Monday night, bringing an end to steady
snow over Southwest Alaska. An upper level low will persist over
Bristol Bay, maintaining considerable cloudiness and a few snow
showers across the region through Tuesday. The chilly (below
normal) temperatures will persist.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2/Tonight
through Tuesday)...
The big story for the Eastern half of the Bering Sea, Pribilof
Islands, Eastern Aleutians, and southern Alaska Peninsula for the
next couple days will be strengthening winds and increasing snow
showers. A series of strong upper level short-waves will dive
south across the region along with low level Arctic air. Unlike
most of the showers of recent days, this will result in heavier
showers with much more vertical extent. The combination of wind
and more frequent snow showers will lead to blowing snow, with
visibilities one half mile or less in heavier showers/stronger
winds. While do not expect any prolonged periods of low
visibility, there is potential for steadier snow ahead of the
upper wave and surface low moving out of Southwest Alaska during
the day Tuesday. Will keep an eye on the track of this low and
associated steadier precipitation in case a blowing snow advisory
or blizzard warning are warranted.

&&

.MARINE (Days 3 through 5)...
On Wednesday low pressure over the Southwest and the Bering begins
a southeastward shift toward the Gulf. Two low pressure centers
look to merge into one. However, there is uncertainty on this
solution as they may just meander about each other while
continuing to move east. Either way...expect directional wind
changes with gusty conditions on Thursday across the Gulf. To the
west...much of the Bering stays under the influence of a building
ridge Wednesday and Thursday with a front moving to the western
waters late Thursday. Southerly Gales are expected along the
frontal boundary as it moves slowly toward the central waters on
Friday.

&&

.LONG TERM FORECAST (Days 3 through 7)...
On Wednesday, the low over the Southwest begins to move on a slow
southeastward track as a strong wave of vorticity dives down the
backside of the trough. This system continues to advect a colder
air mass across the Gulf and Southcentral. Meanwhile ridging
builds across the Aleutian Chain which pulls a subtropical air
mass across the Bering and to the Southwest coast toward the end
of the week. This pattern shift will moderate temperatures to
warmer trends as the tap of cold air is cut off. The main
challenge for the end of next week is on the timing and track of
the next low pressure system expected to push a front into the
western Bering mid week. The forecast blends for the end of the
week were once again heavily weighted toward the 00Z ECMWF/ensembles
to maintain consistency. There is low confidence in the extended
forecast as the 12Z ECMWF came into closer agreement with this
mornings GFS run.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Gale Warning 179>181 185.
 Heavy Freezing Spray 160 180 181 185.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...DK
SOUTHCENTRAL ALASKA...JA
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...SB
MARINE/LONG TERM...KH