Gale Warning 305, NWS Anchorage, AK

312 
FZAK52 PAFC 142317
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
317 PM AKDT Sun Apr 14 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.

PKZ199-151200-
317 PM AKDT Sun Apr 14 2019
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 993 mb low 95 nm North of Adak tracks into the North Pacific at 
1000 mb Tue afternoon. Its front dissipates Mon afternoon. High 
pressure moves over the Western Aleutians and Bering through Tue 
afternoon.

$$

PKZ150-151200-
South of the AK Peninsula Sitkinak to Castle Cape-
317 PM AKDT Sun Apr 14 2019

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...Variable wind 10 kt. Seas 10 ft.
.MON...E wind 10 kt in the morning increasing to 20 kt. 
E of Chirikof Island, variable wind 10 kt becoming E 20 kt 
in the afternoon. Seas 10 ft.
.MON NIGHT...E wind 20 kt. Seas 8 ft.
.TUE...Variable wind 10 kt. Seas 7 ft.
.TUE NIGHT...NW wind 15 kt. Seas 7 ft.
.WED THROUGH THU...W wind 25 kt. Seas 7 ft.
.FRI...W wind 20 kt. Seas 7 ft.

$$

PKZ155-151200-
South of the AK Peninsula Castle Cape to Cape Sarichef-
317 PM AKDT Sun Apr 14 2019

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...E wind 25 kt. From the Shumagin Islands E, variable
wind 10 kt becoming SE 20 kt after midnight. Seas 14 ft. Rain.
.MON...E wind 25 kt. Seas 11 ft. Rain.
.MON NIGHT...E wind 20 kt. Seas 9 ft. Rain showers.
.TUE AND TUE NIGHT...N wind 25 kt. Seas 10 ft.
.WED THROUGH FRI...W wind 20 kt. Seas 8 ft.

$$

PKZ160-151200-
Bristol Bay-
317 PM AKDT Sun Apr 14 2019

.TONIGHT...N wind 10 kt. Seas 1 foot.
.MON...E wind 15 kt diminishing to 10 kt in the afternoon. 
Seas 2 ft.
.MON NIGHT...E wind 10 kt becoming W after midnight. Seas 1 foot.
.TUE...NW wind 15 kt. Seas 3 ft.
.TUE NIGHT...NW wind 20 kt. Seas 5 ft.
.WED THROUGH THU...NW wind 20 kt. Seas 5 ft.
.FRI...W wind 15 kt. Seas 5 ft.

$$

PKZ165-151200-
Port Heiden to Cape Sarichef-
317 PM AKDT Sun Apr 14 2019

...SMALL CRAFT ADVISORY MONDAY AND MONDAY NIGHT...

.TONIGHT...E wind 20 kt except E 15 kt from Port Moller E. Seas
3 ft.
.MON...E wind 25 kt except E 15 kt from Port Moller E. Seas 5 ft.
.MON NIGHT...NE wind 25 kt except NE 15 kt from Port Moller E.
Seas 5 ft.
.TUE...N wind 25 kt. Seas 9 ft.
.TUE NIGHT...N wind 20 kt. Seas 8 ft.
.WED...NW wind 20 kt. Seas 7 ft.
.THU...NW wind 25 kt. Seas 10 ft.
.FRI...NW wind 20 kt. Seas 9 ft.

$$

PKZ170-151200-
Cape Sarichef to Nikolski Bering Side-
317 PM AKDT Sun Apr 14 2019

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SE wind 25 kt. Seas 6 ft. Rain showers.
.MON...NE wind 25 kt. Seas 5 ft. Rain.
.MON NIGHT...NE wind 30 kt. Seas 9 ft. Rain.
.TUE...N wind 30 kt. Seas 11 ft.
.TUE NIGHT...N wind 25 kt. Seas 10 ft.
.WED...NW wind 20 kt. Seas 7 ft.
.THU...NW wind 25 kt. Seas 11 ft.
.FRI...NW wind 20 kt. Seas 10 ft.

$$

PKZ171-151200-
Unalaska Bay-
317 PM AKDT Sun Apr 14 2019

.TONIGHT...SE wind 20 kt becoming S 10 kt after midnight. 
Seas 3 ft. Rain showers.
.MON...Variable wind less than 10 kt. Seas 1 foot. Rain showers.
.MON NIGHT...NE wind 10 kt in the morning increasing to 20 kt. 
Seas 2 ft in the morning building to 6 ft. Rain showers.
.TUE...N wind 25 kt. Seas 9 ft.
.TUE NIGHT...N wind 20 kt. Seas 7 ft.
.WED THROUGH THU...NW wind 20 kt. Seas 7 ft.
.FRI...NW wind 15 kt. Seas 5 ft.

$$

PKZ172-151200-
Cape Sarichef to Nikolski Pacific Side-
317 PM AKDT Sun Apr 14 2019

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...S wind 20 kt becoming W after midnight. Seas 13 ft. 
Rain showers.
.MON...W wind 15 kt becoming NW in the afternoon. Seas 9 ft.
.MON NIGHT...NW wind 20 kt becoming NE. Seas 7 ft building to 12 ft 
after midnight.
.TUE...N wind 30 kt. Seas 12 ft.
.TUE NIGHT...N wind 25 kt. Seas 9 ft.
.WED...NW wind 20 kt. Seas 7 ft.
.THU...NW wind 25 kt. Seas 7 ft.
.FRI...NW wind 20 kt. Seas 7 ft.

$$

PKZ173-151200-
Nikolski to Seguam Island Bering Side-
317 PM AKDT Sun Apr 14 2019

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...SW wind 15 kt. Seas 6 ft.
.MON...Variable wind 10 kt becoming N 15 kt in the afternoon. 
Seas 5 ft.
.MON NIGHT...N wind 15 kt in the evening increasing to 30 kt. 
Seas 7 ft building to 11 ft after midnight.
.TUE...N wind 30 kt. Seas 12 ft.
.TUE NIGHT...N wind 25 kt. Seas 10 ft.
.WED THROUGH FRI...NW wind 20 kt. Seas 8 ft.

$$

PKZ174-151200-
Nikolski to Seguam Island Pacific Side-
317 PM AKDT Sun Apr 14 2019

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW wind 15 kt. Seas 12 ft.
.MON...Variable wind 10 kt. Seas 8 ft.
.MON NIGHT...N wind 15 kt increasing to 30 kt after midnight. 
Seas 12 ft.
.TUE...N wind 30 kt. Seas 12 ft.
.TUE NIGHT...N wind 25 kt. Seas 10 ft.
.WED THROUGH FRI...NW wind 20 kt. Seas 7 ft.

$$

PKZ175-151200-
Seguam Island to Adak Bering Side-
317 PM AKDT Sun Apr 14 2019

...SMALL CRAFT ADVISORY MONDAY AND MONDAY NIGHT...

.TONIGHT...S wind 15 kt. Seas 4 ft.
.MON...NE wind 15 kt becoming N 25 kt in the afternoon. Seas 7 ft.
.MON NIGHT...N wind 30 kt. Seas 11 ft.
.TUE...N wind 30 kt. Seas 12 ft.
.TUE NIGHT...N wind 20 kt. Seas 9 ft.
.WED THROUGH FRI...NW wind 20 kt. Seas 7 ft.

$$

PKZ176-151200-
Seguam Island to Adak Pacific Side-
317 PM AKDT Sun Apr 14 2019

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 10 ft. Rain.
.MON...N wind 20 kt. Seas 12 ft.
.MON NIGHT...N wind 30 kt. Seas 12 ft.
.TUE...N wind 30 kt. Seas 10 ft.
.TUE NIGHT...N wind 25 kt. Seas 8 ft.
.WED...NW wind 20 kt. Seas 5 ft.
.THU THROUGH FRI...NW wind 15 kt. Seas 6 ft.

$$

PKZ177-151200-
Adak to Kiska-
317 PM AKDT Sun Apr 14 2019

...GALE WARNING THROUGH MONDAY...

.TONIGHT...NW wind increasing to 35 kt. Seas 9 ft building to 15 ft 
after midnight. Rain showers.
.MON...N wind 35 kt. Seas 16 ft. Rain.
.MON NIGHT...N wind 30 kt. Seas 11 ft.
.TUE...N wind 25 kt. Seas 10 ft.
.TUE NIGHT...NE wind 15 kt. Seas 7 ft.
.WED THROUGH FRI...N wind 15 kt. Seas 6 ft.

$$

PKZ178-151200-
Kiska to Attu-
317 PM AKDT Sun Apr 14 2019

...GALE WARNING THROUGH MONDAY...

.TONIGHT...NW wind 35 kt. Seas 13 ft. Snow and rain showers.
.MON...N wind 35 kt. Seas 12 ft.
.MON NIGHT...N wind 25 kt. Seas 11 ft.
.TUE...NE wind 15 kt. Seas 8 ft.
.TUE NIGHT...E wind 15 kt. Seas 6 ft.
.WED...E wind 15 kt. Seas 7 ft.
.THU...Variable wind 10 kt. Seas 7 ft.
.FRI...N wind 15 kt. Seas 5 ft.

$$

PKZ179-151200-
Pribilof Islands Near Shore Waters-
317 PM AKDT Sun Apr 14 2019

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...E wind 25 kt. Seas 7 ft.
.MON...NE wind 25 kt. Seas 8 ft.
.MON NIGHT...NE wind 30 kt. Seas 10 ft.
.TUE...N wind 25 kt. Seas 9 ft.
.TUE NIGHT...NW wind 20 kt. Seas 6 ft.
.WED...NW wind 20 kt. Seas 6 ft.
.THU...NW wind 25 kt. Seas 11 ft.
.FRI...N wind 20 kt. Seas 8 ft.

$$

PKZ180-151200-
Kuskokwim Delta and Etolin Strait-
317 PM AKDT Sun Apr 14 2019

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...NE wind 15 kt. Seas 3 ft.
.MON...NE wind 20 kt. Seas 4 ft.
.MON NIGHT...N wind 25 kt. Seas 6 ft. 
Freezing spray N of Cape Newenham.
.TUE...N wind 25 kt. Seas 7 ft.
.TUE NIGHT...NW wind 20 kt. Seas 6 ft.
.WED THROUGH THU...NW wind 20 kt. Seas 6 ft.
.FRI...NW wind 15 kt. Seas 5 ft.

$$

PKZ181-151200-
North and West of Nunivak Island-
317 PM AKDT Sun Apr 14 2019

...SMALL CRAFT ADVISORY MONDAY AND MONDAY NIGHT...

.TONIGHT...NE wind 20 kt. Seas 5 ft. Freezing spray.
.MON...NE wind 25 kt. Seas 7 ft. Freezing spray.
.MON NIGHT...N wind 25 kt. Seas 7 ft. Freezing spray.
.TUE...N wind 25 kt. Seas 7 ft.
.TUE NIGHT...NW wind 20 kt. Seas 6 ft.
.WED THROUGH THU...N wind 25 kt. Seas 10 ft.
.FRI...N wind 20 kt. Seas 7 ft.

$$

PKZ185-151200-
Saint Matthew Island Waters-
317 PM AKDT Sun Apr 14 2019

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...NE wind 25 kt. Seas 7 ft. Freezing spray.
.MON...NE wind 25 kt. Seas 8 ft. Freezing spray.
.MON NIGHT...N wind 25 kt. Seas 8 ft. Freezing spray.
.TUE AND TUE NIGHT...NW wind 20 kt. Seas 6 ft.
.WED THROUGH THU...N wind 25 kt. Seas 8 ft.
.FRI...N wind 20 kt. Seas 8 ft.

$$

286 
FZAK52 PAFC 151132
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
332 AM AKDT Mon Apr 15 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.

PKZ199-160015-
332 AM AKDT Mon Apr 15 2019
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 989 mb low near Adak will move into the North Pacific and 
dissipate Tue morning. High pressure builds in the Bering through 
Wed morning.

$$

PKZ150-160015-
South of the AK Peninsula Sitkinak to Castle Cape-
332 AM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...E wind 10 kt increasing to 20 kt. Seas 10 ft.
.TONIGHT...E wind 20 kt. Seas 8 ft.
.TUE...N wind 15 kt. Seas 6 ft.
.TUE NIGHT...NW wind 20 kt. Seas 7 ft.
.WED...NW wind 20 kt. Seas 7 ft.
.THU...W wind 25 kt. Seas 7 ft.
.FRI...W wind 20 kt. Seas 10 ft.

$$

PKZ155-160015-
South of the AK Peninsula Castle Cape to Cape Sarichef-
332 AM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...E wind 25 kt. Seas 11 ft. Rain.
.TONIGHT...E wind 25 kt. Seas 9 ft.
.TUE...NE wind 15 kt becoming N 25 kt in the afternoon. From the
Shumagin Islands E, NE wind 15 kt. Seas 10 ft.
.TUE NIGHT...N wind 25 kt. Seas 9 ft.
.WED THROUGH THU...W wind 20 kt. Seas 7 ft.
.FRI...W wind 20 kt. Seas 12 ft.

$$

PKZ160-160015-
Bristol Bay-
332 AM AKDT Mon Apr 15 2019

.TODAY...E wind 15 kt. Seas 2 ft.
.TONIGHT...NE wind 10 kt becoming NW after midnight. Seas 2 ft.
.TUE...NW wind 15 kt. Seas 4 ft.
.TUE NIGHT...NW wind 20 kt. Seas 5 ft.
.WED...NW wind 20 kt. Seas 5 ft.
.THU THROUGH FRI...W wind 15 kt. Seas 4 ft.

$$

PKZ165-160015-
Port Heiden to Cape Sarichef-
332 AM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...E wind 25 kt. Seas 5 ft.
.TONIGHT...NE wind 25 kt except NE 15 kt from Port Moller E. Seas
5 ft.
.TUE...N wind 25 kt. Seas 8 ft.
.TUE NIGHT...N wind 20 kt. Seas 8 ft.
.WED THROUGH THU...W wind 20 kt. Seas 6 ft.
.FRI...NW wind 15 kt. Seas 5 ft.

$$

PKZ170-160015-
Cape Sarichef to Nikolski Bering Side-
332 AM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...Variable wind less than 10 kt becoming NE 25 kt in the 
afternoon. Seas 5 ft. Rain.
.TONIGHT...NE wind 30 kt. Seas 8 ft.
.TUE...NE wind 30 kt. Seas 10 ft.
.TUE NIGHT...N wind 25 kt. Seas 9 ft.
.WED THROUGH FRI...NW wind 20 kt. Seas 7 ft.

$$

PKZ171-160015-
Unalaska Bay-
332 AM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY TUESDAY...

.TODAY...Variable wind less than 10 kt becoming NW 10 kt in the
afternoon. Seas 2 ft. Rain.
.TONIGHT...NE wind 15 kt. Seas 4 ft. Rain showers and snow showers.
.TUE...N wind 25 kt. Seas 7 ft.
.TUE NIGHT...N wind 20 kt. Seas 7 ft.
.WED THROUGH THU...NW wind 15 kt. Seas 5 ft.
.FRI...NW wind 10 kt. Seas 3 ft.

$$

PKZ172-160015-
Cape Sarichef to Nikolski Pacific Side-
332 AM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...W wind 15 kt. Seas 9 ft.
.TONIGHT...W wind 15 kt becoming NE 20 kt after midnight. Seas 7 ft 
building to 11 ft after midnight.
.TUE...NE wind 25 kt. Seas 13 ft.
.TUE NIGHT...N wind 25 kt. Seas 9 ft.
.WED THROUGH FRI...NW wind 20 kt. Seas 7 ft.

$$

PKZ173-160015-
Nikolski to Seguam Island Bering Side-
332 AM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY TONIGHT AND TUESDAY...

.TODAY...Variable wind 10 kt. Seas 4 ft.
.TONIGHT...N wind 10 kt becoming NE 30 kt after midnight. Seas 6 ft 
building to 10 ft after midnight.
.TUE...N wind 30 kt. Seas 11 ft.
.TUE NIGHT...N wind 25 kt. Seas 9 ft.
.WED THROUGH FRI...NW wind 20 kt. Seas 7 ft.

$$

PKZ174-160015-
Nikolski to Seguam Island Pacific Side-
332 AM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...S wind 15 kt becoming E in the afternoon. Seas 10 ft.
.TONIGHT...N wind 15 kt increasing to 30 kt after midnight. Seas
12 ft.
.TUE...N wind 30 kt. Seas 11 ft.
.TUE NIGHT...N wind 25 kt. Seas 10 ft.
.WED THROUGH THU...NW wind 15 kt. Seas 6 ft.
.FRI...NW wind 20 kt. Seas 8 ft.

$$

PKZ175-160015-
Seguam Island to Adak Bering Side-
332 AM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY TONIGHT AND TUESDAY...

.TODAY...NE wind 15 kt. Seas 7 ft.
.TONIGHT...N wind 30 kt. Seas 11 ft.
.TUE...N wind 30 kt diminishing to 20 kt in the afternoon. Seas 11 
ft.
.TUE NIGHT...N wind 20 kt. Seas 9 ft.
.WED THROUGH THU...N wind 15 kt. Seas 6 ft.
.FRI...N wind 20 kt. Seas 8 ft.

$$

PKZ176-160015-
Seguam Island to Adak Pacific Side-
332 AM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...NW wind 20 kt. Seas 14 ft.
.TONIGHT...N wind 20 kt increasing to 30 kt after midnight. Seas
12 ft.
.TUE...N wind 30 kt. Seas 10 ft.
.TUE NIGHT...N wind 25 kt. Seas 8 ft.
.WED...Variable wind 10 kt. Seas 5 ft.
.THU...N wind 15 kt. Seas 5 ft.
.FRI...N wind 20 kt. Seas 7 ft.

$$

PKZ177-160015-
Adak to Kiska-
332 AM AKDT Mon Apr 15 2019

...GALE WARNING TODAY...

.TODAY...NW wind 40 kt becoming N 30 kt in the afternoon. Seas
16 ft. Rain with snow.
.TONIGHT...N wind 30 kt. Seas 12 ft.
.TUE...N wind 25 kt diminishing to 15 kt in the afternoon. Seas 10 
ft.
.TUE NIGHT...NE wind 15 kt. Seas 7 ft.
.WED THROUGH THU...N wind 15 kt. Seas 6 ft.
.FRI...N wind 20 kt. Seas 7 ft.

$$

PKZ178-160015-
Kiska to Attu-
332 AM AKDT Mon Apr 15 2019

...GALE WARNING TODAY...

.TODAY...NW wind 35 kt. Seas 12 ft. Snow showers and rain showers.
.TONIGHT...N wind 30 kt diminishing to 20 kt after midnight. Seas 11
ft.
.TUE...N wind 20 kt becoming NE 10 kt in the afternoon. Seas 8 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 6 ft.
.WED THROUGH THU...N wind 20 kt. Seas 7 ft.
.FRI...N wind 15 kt. Seas 5 ft.

$$

PKZ179-160015-
Pribilof Islands Near Shore Waters-
332 AM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...NE wind 25 kt. Seas 8 ft.
.TONIGHT...NE wind 30 kt. Seas 9 ft. Freezing spray.
.TUE...N wind 25 kt. Seas 9 ft. Snow showers.
.TUE NIGHT...NW wind 20 kt. Seas 6 ft.
.WED THROUGH FRI...N wind 20 kt. Seas 6 ft.

$$

PKZ180-160015-
Kuskokwim Delta and Etolin Strait-
332 AM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY TONIGHT AND TUESDAY...

.TODAY...NE wind 20 kt. Seas 4 ft.
.TONIGHT...N wind 25 kt. Seas 6 ft. Freezing spray.
.TUE...N wind 25 kt. Seas 6 ft. Freezing spray.
.TUE NIGHT...NW wind 25 kt. Seas 6 ft.
.WED...NW wind 20 kt. Seas 5 ft.
.THU...NW wind 15 kt. Seas 3 ft.
.FRI...NW wind 20 kt. Seas 4 ft.

$$

PKZ181-160015-
North and West of Nunivak Island-
332 AM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...NE wind 25 kt. Seas 7 ft. Freezing spray.
.TONIGHT...N wind 25 kt. Seas 7 ft. Freezing spray.
.TUE...N wind 25 kt. Seas 7 ft. Freezing spray.
.TUE NIGHT...NW wind 20 kt. Seas 5 ft.
.WED THROUGH FRI...N wind 20 kt. Seas 6 ft.

$$

PKZ185-160015-
Saint Matthew Island Waters-
332 AM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NE wind 25 kt. Seas 8 ft. Freezing spray.
.TONIGHT...N wind 25 kt. Seas 8 ft. Freezing spray.
.TUE...NW wind 20 kt. Seas 6 ft. Freezing spray.
.TUE NIGHT...NW wind 15 kt. Seas 4 ft.
.WED THROUGH THU...N wind 25 kt. Seas 7 ft.
.FRI...N wind 20 kt. Seas 7 ft.

$$

828 
FZAK52 PAFC 152345
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
345 PM AKDT Mon Apr 15 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.

PKZ199-161215-
345 PM AKDT Mon Apr 15 2019
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 983 mb low at 260 nm southeast of Sand Point Mon afternoon will
move to 220 nm southeast of Middleton Island at 990 mb by Tue 
afternoon. A front over the western Aleutians and Bering Mon 
afternoon moves over the central Aleutians and weakens by Tue 
afternoon. High pressure builds in the Bering Wed afternoon.

$$

PKZ150-161215-
South of the AK Peninsula Sitkinak to Castle Cape-
345 PM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...E wind 20 kt. Seas 8 ft.
.TUE...N wind 15 kt. Seas 7 ft.
.TUE NIGHT...NW wind 20 kt. Seas 7 ft.
.WED AND WED NIGHT...NW wind 20 kt. Seas 8 ft.
.THU THROUGH FRI...W wind 20 kt. Seas 9 ft.
.SAT...NE wind 20 kt. Seas 13 ft.

$$

PKZ155-161215-
South of the AK Peninsula Castle Cape to Cape Sarichef-
345 PM AKDT Mon Apr 15 2019

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

.TONIGHT...E wind 25 kt. Seas 10 ft.
.TUE...NE wind 20 kt, except variable 10 kt E of the Shumagin 
Islands. Seas 9 ft.
.TUE NIGHT...N wind 25 kt. Seas 9 ft.
.WED...NW wind 20 kt. Seas 7 ft.
.WED NIGHT...W wind 20 kt. Seas 5 ft.
.THU...W wind 20 kt. Seas 6 ft.
.FRI...NW wind 20 kt. Seas 12 ft.
.SAT...N wind 20 kt. Seas 12 ft.

$$

PKZ160-161215-
Bristol Bay-
345 PM AKDT Mon Apr 15 2019

.TONIGHT...Variable wind 10 kt. Seas 2 ft.
.TUE...NW wind 15 kt. Seas 4 ft.
.TUE NIGHT...NW wind 15 kt. Seas 5 ft. 
.WED...NW wind 20 kt. Seas 5 ft.
.WED NIGHT...NW wind 15 kt. Seas 4 ft.
.THU THROUGH FRI...W wind 15 kt. Seas 4 ft.
.SAT...N wind 15 kt. Seas 3 ft.

$$

PKZ165-161215-
Port Heiden to Cape Sarichef-
345 PM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY TUESDAY AND TUESDAY NIGHT...

.TONIGHT...NE wind 15 kt. Seas 5 ft.
.TUE...N wind 20 kt. Seas 8 ft.
.TUE NIGHT...N wind 20 kt. Seas 8 ft.
.WED...NW wind 15 kt. Seas 6 ft.
.WED NIGHT...W wind 20 kt. Seas 5 ft.
.THU...W wind 20 kt. Seas 5 ft.
.FRI...NW wind 15 kt. Seas 5 ft.
.SAT...N wind 20 kt. Seas 10 ft.

$$

PKZ170-161215-
Cape Sarichef to Nikolski Bering Side-
345 PM AKDT Mon Apr 15 2019

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

.TONIGHT...NE wind 25 kt. Seas 8 ft.
.TUE...NE wind 30 kt. Seas 10 ft.
.TUE NIGHT...N wind 20 kt. Seas 8 ft.
.WED...NW wind 15 kt. Seas 6 ft.
.WED NIGHT...W wind 20 kt. Seas 6 ft.
.THU THROUGH SAT...NW wind 20 kt. Seas 7 ft.

$$

PKZ171-161215-
Unalaska Bay-
345 PM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY TUESDAY...

.TONIGHT...NE wind 15 kt. Seas 3 ft building to 5 ft after midnight. Rain.
.TUE...NE wind 15 kt increasing to 25 kt in the afternoon. Seas 7 ft.
.TUE NIGHT...N wind 20 kt. Seas 7 ft.
.WED...NW wind 15 kt. Seas 5 ft.
.WED NIGHT...W wind 20 kt. Seas 3 ft.
.THU...NW wind 20 kt. Seas 5 ft.
.FRI...NW wind 10 kt. Seas 3 ft.
.SAT...NW wind 15 kt. Seas 5 ft.

$$

PKZ172-161215-
Cape Sarichef to Nikolski Pacific Side-
345 PM AKDT Mon Apr 15 2019

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

.TONIGHT...NW wind 15 kt becoming NE 25 kt after midnight. Seas 7 ft
building to 11 ft after midnight. Rain.
.TUE...NE wind 25 kt. Seas 12 ft.
.TUE NIGHT...NE wind 25 kt. Seas 8 ft.
.WED...NW wind 20 kt. Seas 6 ft.
.WED NIGHT...W wind 20 kt. Seas 5 ft.
.THU THROUGH SAT...NW wind 20 kt. Seas 7 ft.

$$

PKZ173-161215-
Nikolski to Seguam Island Bering Side-
345 PM AKDT Mon Apr 15 2019

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

.TONIGHT...N wind 15 kt becoming NE 25 kt after midnight. Seas 5 ft 
building to 9 ft after midnight.
.TUE...NE wind 30 kt. Seas 11 ft.
.TUE NIGHT...N wind 20 kt. Seas 9 ft.
.WED...NW wind 15 kt. Seas 6 ft.
.WED NIGHT...W wind 20 kt. Seas 6 ft.
.THU THROUGH SAT...NW wind 20 kt. Seas 7 ft.

$$

PKZ174-161215-
Nikolski to Seguam Island Pacific Side-
345 PM AKDT Mon Apr 15 2019

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

.TONIGHT...N wind 15 kt increasing to 25 kt after midnight. Seas 12 ft.
Rain.
.TUE...N wind 30 kt. Seas 11 ft.
.TUE NIGHT...NE wind 20 kt. Seas 10 ft.
.WED...NW wind 15 kt. Seas 6 ft.
.WED NIGHT...W wind 20 kt. Seas 5 ft.
.THU...NW wind 15 kt. Seas 5 ft.
.FRI...NW wind 20 kt. Seas 8 ft.
.SAT...NW wind 25 kt. Seas 8 ft.

$$

PKZ175-161215-
Seguam Island to Adak Bering Side-
345 PM AKDT Mon Apr 15 2019

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

.TONIGHT...N wind 20 kt becoming NE 30 kt after midnight. Seas 11 ft.
.TUE...N wind 25 kt. Seas 10 ft.
.TUE NIGHT...NE wind 15 kt. Seas 9 ft.
.WED AND WED NIGHT...NW wind 15 kt. Seas 5 ft.
.THU...N wind 15 kt. Seas 5 ft.
.FRI...NW wind 20 kt. Seas 8 ft.
.SAT...NW wind 25 kt. Seas 7 ft.

$$

PKZ176-161215-
Seguam Island to Adak Pacific Side-
345 PM AKDT Mon Apr 15 2019

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

.TONIGHT...N wind 20 kt increasing to 30 kt after midnight. Seas
13 ft.
.TUE...NE wind 30 kt. Seas 9 ft.
.TUE NIGHT...NE wind 25 kt diminishing to 15 kt after midnight. Seas
8 ft.
.WED...Variable wind 10 kt. Seas 5 ft.
.WED NIGHT...NW wind 15 kt. Seas 4 ft.
.THU...N wind 15 kt. Seas 4 ft.
.FRI...N wind 20 kt. Seas 7 ft.
.SAT...NW wind 25 kt. Seas 7 ft.

$$

PKZ177-161215-
Adak to Kiska-
345 PM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...N wind 30 kt. Seas 12 ft.
.TUE...N wind 20 kt. Seas 10 ft.
.TUE NIGHT...N wind 15 kt. Seas 7 ft.
.WED...Variable wind 10 kt. Seas 5 ft.
.WED NIGHT...N wind 15 kt. Seas 5 ft.
.THU THROUGH FRI...N wind 20 kt. Seas 7 ft.
.SAT...NW wind 25 kt. Seas 7 ft.

$$

PKZ178-161215-
Kiska to Attu-
345 PM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...N wind 30 kt. Seas 11 ft.
.TUE...N wind 20 kt. Seas 8 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 6 ft.
.WED...NE wind 15 kt. Seas 6 ft.
.WED NIGHT...NE wind 20 kt. Seas 7 ft.
.THU...NE wind 20 kt. Seas 7 ft.
.FRI...N wind 15 kt. Seas 5 ft.
.SAT...NW wind 20 kt. Seas 6 ft.

$$

PKZ179-161215-
Pribilof Islands Near Shore Waters-
345 PM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...NE wind 25 kt. Seas 9 ft.
.TUE...NE wind 20 kt. Seas 9 ft.
.TUE NIGHT...N wind 15 kt. Seas 6 ft.
.WED...NW wind 15 kt. Seas 5 ft.
.WED NIGHT...NW wind 20 kt. Seas 4 ft.
.THU THROUGH SAT...N wind 20 kt. Seas 6 ft.

$$

PKZ180-161215-
Kuskokwim Delta and Etolin Strait-
345 PM AKDT Mon Apr 15 2019

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

.TONIGHT...NE wind 25 kt, except NE 15 kt S of Cape Newenham. Seas 6
ft. Freezing spray.
.TUE...N wind 25 kt. Seas 7 ft. Freezing spray.
.TUE NIGHT...NW wind 25 kt. Seas 6 ft. Freezing spray.
.WED AND WED NIGHT...NW wind 15 kt. Seas 4 ft.
.THU...NW wind 15 kt. Seas 3 ft.
.FRI THROUGH SAT...N wind 20 kt. Seas 5 ft.

$$

PKZ181-161215-
North and West of Nunivak Island-
345 PM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...N wind 25 kt. Seas 7 ft. Freezing spray.
.TUE...N wind 25 kt. Seas 6 ft. Freezing spray.
.TUE NIGHT...NW wind 15 kt. Seas 4 ft. Freezing spray.
.WED...NW wind 20 kt. Seas 4 ft.
.WED NIGHT...NW wind 25 kt. Seas 6 ft.
.THU...N wind 25 kt. Seas 7 ft.
.FRI THROUGH SAT...N wind 20 kt. Seas 5 ft.

$$

PKZ185-161215-
Saint Matthew Island Waters-
345 PM AKDT Mon Apr 15 2019

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 25 kt. Seas 8 ft. Freezing spray.
.TUE...NW wind 15 kt. Seas 5 ft. Freezing spray.
.TUE NIGHT...NW wind 15 kt. Seas 4 ft. Freezing spray.
.WED...N wind 20 kt. Seas 5 ft.
.WED NIGHT...N wind 25 kt. Seas 7 ft.
.THU...N wind 25 kt. Seas 8 ft.
.FRI THROUGH SAT...N wind 20 kt. Seas 7 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
340 PM AKDT Sat Apr 13 2019

.ANALYSIS AND UPPER LEVELS...

The core of the Pacific jet stream is south of the Aleutian Chain
this afternoon with a weak blocking high over the center of the
Bering Sea. A 989 mb low is tracking east along the Central
Aleutian Chain, but it is weakening as it does with a broad
confluent flow regime aloft. Another surface low, also rather
weak, is crossing the Southern Gulf of Alaska. Over the mainland,
a shortwave trough is digging south across Western Alaska into
Southwest Alaska. A closed low is centered over the North Gulf
Coast, but this circulation is only a remnant circulation,
although it does look impressive on visible satellite as a tight
mesoscale circulation wrapping convective showers around it. With
all these details, however, weather is rather quiescent region
wide, with weak pressure gradients and largely dry weather. The
main concern is low stratus and fog across parts of the Kuskokwim
Delta as well as over the Bering Sea.

&&

.MODEL DISCUSSION...

The numerical weather models are in very good agreement with the
general pattern through Tuesday. They are in lesser agreement with
the complex interactions between merging arctic shortwave troughs
with a low in the Gulf of Alaska Monday and Tuesday. The impacts
are not large, but there will be changes to the forecast by Monday
night, especially across Southwest Alaska where there will be
higher chances for precipitation as an arctic trough digs south.

&&

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

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...

Light winds and limited precipitation will be the story for
Southcentral Alaska the next couple of days. The low over the
northern Gulf will slowly drift south through Monday which will
allow for some light, isolated showers along the north Gulf
coast. Cloud cover over the Cook Inlet area will diminish into
Monday leaving mostly clear skies. Meanwhile, cloud cover over
the Copper River Basin will increase through Sunday before
clearing out again Monday.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...

A shortwave centered over the western Alaska interior will drop
south across the Kuskokwim Valley this evening. As it does, its
associated surface trough will move across the region, getting
hung up over the Alaska Range tonight. These features will combine
to produce areas of rain and snow showers from Sleetmute and the
Nushagak Hills east to the Alaska Range through late Sunday as the
shortwave continues its southward movement over the AKPEN. Behind
it, a cool, northerly low-level flow is yielding low stratus and
patchy fog from Norton Sound south across the Y-K Delta. This is
expected to continue (although not as widespread as today) through
the overnight and early morning hours Sunday as the upper-level
ridge axis moves overhead. As the ridge expands, an offshore flow
will set in over the mainland bringing drier conditions for the
remainder of Sunday into Monday. The next shortwave then drops in
form the north late Monday into Tuesday bringing another shot of
mixed rain and snow from interior Bristol Bay to the Kuskokwim
Valley and a return to more seasonable temperatures across the
Y-K Delta.

&&

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

The main weather feature is a 988 mb vertically stacked low south
of Atka and its occluded front draped south of the central and
eastern Aleutians. This system will continue to weaken and fill
tonight as a new triple-point low forms well south of the AKPEN
and quickly advances east. Farther west, a deepening shortwave
east of Kamchatka will spin up a new surface low over the western
Aleutians by Sunday morning. An amplifying ridge/trough pattern
upstream will yield the development of strong cold air advection,
enhancing northerly wind gusts on the back side of the surface low
through early next week as the low drifts south and east.
Widespread rain and snow showers in cold air advection are likely
along the backside of the low, while a moist southerly flow ahead
of the low will maintain warm conditions and rain across the
eastern Aleutians and southern AKPEN. Over the Bering, widespread
low stratus will persist through the remainder of the weekend as
an upper-level ridge dominates.

&&

.MARINE (Days 3 through 5...Tue through Thu)...

Over the Bering Sea...confidence is high in small craft northerly
winds to start the period, primarily in the Eastern Bering. As
high pressure builds in from the west, winds should slowly
decrease leaving very few concerns for the area.

Gulf of AK...the period will start out relatively quiet with high
confidence in sub-small craft cyclonic (counter-clockwise) flow.
As we move towards Thu, models diverge drastically with a strong
low moving quickly from south to north into the area. The GFS is
the strongest solution advertising a mid 970 mb low with gale-
force winds. However, the GFS is an outlier and the consensus is
to take this low further to the east and keep it slightly weaker.
Thus the forecast will continue to advertise small-craft winds or
less for winds. Because of these model differences, forecast
confidence remains low to moderate.

&&

.LONG TERM FORECAST (Days 3 through 7...Tue through Sat)...

As is often the case in this timeframe, the extended forecast is
starting to become slightly more certain as it draws closer to the
short-term. Early in the period, confidence has improved markedly
in a weak deformation band setting up over the interior portions
of SW Alaska on Tue. All models are advertising a potent upper
level shortwave dropping in from the Bering Strait area. With weak
cyclonic flow swinging moisture in from the Gulf of AK, this will
set the stage for some potential rain and/or snow Tue-Wed. There
is still some slight uncertainty regarding the exact timing of
the upper level wave. So for this forecast package, we have only
trended PoPs up rather than putting in a widespread area of
likelys. The other important note with this pattern would be a
return to much cooler (more seasonable) temperatures for the
middle portion of the week, primarily from Aniak west.

Toward the Gulf of AK, things look to remain fairly quiet early
in the period. There will be a weak low creating cyclonic
circulation. Where exactly that low sets up and exactly how strong
that flow is remains in flux. Models are trending slightly
further east and weaker, so this forecast moves ever-so-slightly
in that direction. This could also lead to another day of mostly
sunny skies for Southcentral.

As we move into the latter half of the week, model disparity jumps
up significantly. Over the Gulf of AK, all the models agree a
strong low moves from south to north by early Thu. However, the
GFS is an outlier with this system as it is by far the strongest
and further west. Thus, we are trending the forecast slightly
further to the east for the low track using some of the ensemble
model guidance. Either way, it looks like the potential for more
winds and rain for coastal areas. Over the Bering, a closed upper
level high builds in during this time. This will leave the Western
Bering relatively quiet, but will serve to dig out a longwave
trough over SW AK. That type of pattern supports unsettled weather
with cooler temperatures over SW with cloudy and showery
conditions extending over to Southcentral AK.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...NONE.
FIRE WEATHER...NONE.

&&

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