Gale Warning 364, NWS Anchorage, AK

474 
FZAK52 PAFC 032300
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
300 PM AKDT Thu May 3 2018

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.

PKZ199-041215-
300 PM AKDT Thu May 3 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A complex 989 mb low 160 nm northwest of Dutch Harbor moves 50 nm
south of Chignik at 974 mb tonight then it will move inland Fri 
afternoon at 973 mb. A 996 mb low approaches the western Aleutians
Sat afternoon.

$$

PKZ150-041215-
South of the AK Peninsula Sitkinak to Castle Cape-
300 PM AKDT Thu May 3 2018

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...SE wind 30 kt becoming S 40 kt after midnight. Seas 9
ft building to 14 ft after midnight. Rain.
.FRI...SW wind 45 kt. Seas 18 ft.
.FRI NIGHT...S wind 30 kt. Seas 15 ft.
.SAT...SW wind 25 kt. Seas 12 ft.
.SAT NIGHT...SW wind 20 kt. Seas 8 ft.
.SUN...S wind 20 kt. Seas 7 ft.
.MON THROUGH TUE...SE wind 30 kt. Seas 15 ft.

$$

PKZ155-041215-
South of the AK Peninsula Castle Cape to Cape Sarichef-
300 PM AKDT Thu May 3 2018

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...W wind 30 kt. From the Shumagin Islands E, SE wind 30
kt becoming SW 40 kt after midnight. Seas 12 ft. Widespread rain and
snow showers.
.FRI...W wind 30 kt. From the Shumagin Islands E, SW wind 40 kt
diminishing to 30 kt in the afternoon. Seas 13 ft.
.FRI NIGHT...W wind 30 kt. Seas 12 ft.
.SAT...W wind 25 kt. Seas 10 ft.
.SAT NIGHT...SW wind 20 kt. Seas 7 ft.
.SUN...S wind 30 kt. Seas 9 ft.
.MON...S wind 30 kt. Seas 19 ft.
.TUE...S wind 25 kt. Seas 19 ft.

$$

PKZ160-041215-
Bristol Bay-
300 PM AKDT Thu May 3 2018

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

.TONIGHT...SE wind 15 kt becoming NE 30 kt after midnight. Seas
5 ft. Patchy fog. Rain.
.FRI...NE wind 30 kt becoming SW in the afternoon. Seas 7 ft.
Rain.
.FRI NIGHT...SW wind 30 kt. Seas 8 ft. Rain showers.
.SAT...SW wind 25 kt. Seas 9 ft.
.SAT NIGHT...SW wind 20 kt. Seas 7 ft.
.SUN THROUGH TUE...SE wind 30 kt. Seas 6 ft.

$$

PKZ165-041215-
Port Heiden to Cape Sarichef-
300 PM AKDT Thu May 3 2018

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

.TONIGHT...NW wind 15 kt except E 20 kt from Port Moller E. Seas
6 ft.
.FRI...NW wind 20 kt increasing to 30 kt in the afternoon. From
Port Moller E, NW wind 30 kt. Seas 9 ft. Rain showers and snow.
.FRI NIGHT...W wind 30 kt. Seas 13 ft. Rain showers.
.SAT...W wind 25 kt. Seas 11 ft.
.SAT NIGHT...SW wind 20 kt. Seas 8 ft.
.SUN...S wind 30 kt. Seas 6 ft.
.MON...SE wind 25 kt. Seas 10 ft.
.TUE...SE wind 20 kt. Seas 6 ft.

$$

PKZ170-041215-
Cape Sarichef to Nikolski Bering Side-
300 PM AKDT Thu May 3 2018

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...W wind 25 kt becoming NW 35 kt after midnight. Seas
13 ft. Rain showers.
.FRI...NW wind 35 kt. Seas 17 ft. Rain showers.
.FRI NIGHT...NW wind 30 kt. Seas 15 ft.
.SAT...W wind 20 kt. Seas 12 ft.
.SAT NIGHT...SW wind 15 kt. Seas 8 ft.
.SUN...S wind 30 kt. Seas 9 ft.
.MON...S wind 25 kt. Seas 12 ft.
.TUE...W wind 25 kt. Seas 14 ft.

$$

PKZ171-041215-
Unalaska Bay-
300 PM AKDT Thu May 3 2018

...GALE WARNING FRIDAY...

.TONIGHT...W wind 20 kt. Seas 3 ft building to 5 ft after
midnight. Rain showers and snow showers.
.FRI...NW wind 35 kt. Seas 15 ft. Rain showers and snow showers.
.FRI NIGHT...NW wind 30 kt. Seas 13 ft. Snow showers.
.SAT...W wind 20 kt. Seas 3 ft.
.SAT NIGHT...SW wind 10 kt. Seas 2 ft.
.SUN...S wind 25 kt. Seas 4 ft.
.MON...S wind 15 kt. Seas 2 ft.
.TUE...W wind 20 kt. Seas 3 ft.

$$

PKZ172-041215-
Cape Sarichef to Nikolski Pacific Side-
300 PM AKDT Thu May 3 2018

...GALE WARNING FRIDAY...

.TONIGHT...W wind 30 kt. Seas 11 ft. Rain showers and snow
showers.
.FRI...NW wind 35 kt. Seas 13 ft.
.FRI NIGHT...NW wind 30 kt. Seas 11 ft.
.SAT...W wind 20 kt. Seas 8 ft.
.SAT NIGHT...SW wind 15 kt. Seas 6 ft.
.SUN...S wind 35 kt. Seas 10 ft.
.MON...SW wind 25 kt. Seas 17 ft.
.TUE...W wind 30 kt. Seas 17 ft.

$$

PKZ173-041215-
Nikolski to Seguam Island Bering Side-
300 PM AKDT Thu May 3 2018

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...NW wind 35 kt. Seas 12 ft building to 17 ft after
midnight. Rain showers.
.FRI...NW wind 35 kt. Seas 16 ft.
.FRI NIGHT...NW wind 30 kt becoming W 20 kt after midnight. Seas
15 ft.
.SAT...W wind 20 kt. Seas 10 ft.
.SAT NIGHT...SW wind 15 kt. Seas 7 ft.
.SUN...S wind 35 kt. Seas 13 ft.
.MON THROUGH TUE...NW wind 30 kt. Seas 15 ft.

$$

PKZ174-041215-
Nikolski to Seguam Island Pacific Side-
300 PM AKDT Thu May 3 2018

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...NW wind 35 kt. Seas 13 ft. Rain showers.
.FRI...NW wind 35 kt. Seas 13 ft.
.FRI NIGHT...NW wind 30 kt. Seas 12 ft.
.SAT...W wind 20 kt. Seas 9 ft.
.SAT NIGHT...SW wind 15 kt. Seas 7 ft.
.SUN...S wind 40 kt. Seas 15 ft.
.MON THROUGH TUE...W wind 30 kt. Seas 18 ft.

$$

PKZ175-041215-
Seguam Island to Adak Bering Side-
300 PM AKDT Thu May 3 2018

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

.TONIGHT...NW wind 30 kt. Seas 12 ft.
.FRI...NW wind 30 kt. Seas 13 ft.
.FRI NIGHT...NW wind 25 kt. Seas 13 ft.
.SAT...W wind 20 kt. Seas 9 ft.
.SAT NIGHT...SW wind 15 kt. Seas 6 ft.
.SUN...SE wind 30 kt. Seas 13 ft.
.MON THROUGH TUE...NW wind 30 kt. Seas 14 ft.

$$

PKZ176-041215-
Seguam Island to Adak Pacific Side-
300 PM AKDT Thu May 3 2018

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

.TONIGHT...NW wind 30 kt. Seas 9 ft.
.FRI...NW wind 30 kt. Seas 10 ft.
.FRI NIGHT...NW wind 25 kt. Seas 10 ft.
.SAT...W wind 25 kt. Seas 9 ft.
.SAT NIGHT...SW wind 20 kt. Seas 6 ft.
.SUN...S wind 35 kt. Seas 13 ft.
.MON THROUGH TUE...NW wind 30 kt. Seas 14 ft.

$$

PKZ177-041215-
Adak to Kiska-
300 PM AKDT Thu May 3 2018

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

.TONIGHT...NW wind 25 kt. Seas 9 ft.
.FRI...NW wind 25 kt. Seas 9 ft.
.FRI NIGHT...W wind 25 kt. Seas 10 ft.
.SAT...W wind 25 kt. Seas 9 ft.
.SAT NIGHT...S wind 25 kt. Seas 7 ft.
.SUN...N wind 35 kt. Seas 11 ft.
.MON...NW wind 35 kt. Seas 11 ft.
.TUE...NW wind 30 kt. Seas 11 ft.

$$

PKZ178-041215-
Kiska to Attu-
300 PM AKDT Thu May 3 2018

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

.TONIGHT...NW wind 25 kt. Seas 9 ft.
.FRI...W wind 25 kt. Seas 9 ft.
.FRI NIGHT...W wind 25 kt. Seas 9 ft.
.SAT...W wind 20 kt. Seas 7 ft.
.SAT NIGHT...E wind 25 kt. Seas 8 ft.
.SUN THROUGH MON...NW wind 30 kt. Seas 12 ft.
.TUE...N wind 20 kt. Seas 10 ft.

$$

PKZ179-041215-
Pribilof Islands Near Shore Waters-
300 PM AKDT Thu May 3 2018

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...N wind 35 kt. Seas 13 ft. Rain and snow showers.
.FRI...N wind 40 kt. Seas 16 ft.
.FRI NIGHT...NW wind 30 kt. Seas 12 ft.
.SAT...NW wind 20 kt. Seas 9 ft.
.SAT NIGHT...Variable wind 10 kt. Seas 7 ft.
.SUN...SE wind 25 kt. Seas 10 ft.
.MON...E wind 15 kt. Seas 12 ft.
.TUE...N wind 15 kt. Seas 9 ft.

$$

PKZ180-041215-
Kuskokwim Delta and Etolin Strait-
300 PM AKDT Thu May 3 2018

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

.TONIGHT...NE wind 30 kt. Seas 6 ft. Patchy fog.
.FRI...NW wind 35 kt. Seas 9 ft. Rain.
.FRI NIGHT...NW wind 35 kt. Seas 11 ft.
.SAT...W wind 25 kt. Seas 10 ft.
.SAT NIGHT...SW wind 20 kt. Seas 7 ft.
.SUN THROUGH MON...SE wind 30 kt. Seas 7 ft.
.TUE...E wind 25 kt. Seas 6 ft.

$$

PKZ181-041215-
North and West of Nunivak Island-
300 PM AKDT Thu May 3 2018

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...N wind 35 kt. Seas 10 ft.
.FRI...N wind 35 kt. Seas 12 ft.
.FRI NIGHT...NW wind 35 kt. Seas 11 ft.
.SAT...NW wind 25 kt. Seas 9 ft.
.SAT NIGHT...W wind 20 kt. Seas 7 ft.
.SUN...SE wind 25 kt. Seas 6 ft.
.MON...E wind 25 kt. Seas 7 ft.
.TUE...E wind 20 kt. Seas 7 ft.

$$

PKZ185-041215-
Saint Matthew Island Waters-
300 PM AKDT Thu May 3 2018

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...N wind 35 kt E of Saint Matthew Island...N 25 kt W of
Saint Matthew Island. Seas 8 ft.
.FRI...N wind 35 kt E of Saint Matthew Island...N 25 kt W of Saint
Matthew Island. Seas 10 ft.
.FRI NIGHT...N wind 30 kt. Seas 10 ft.
.SAT...N wind 25 kt. Seas 9 ft.
.SAT NIGHT...N wind 20 kt. Seas 7 ft.
.SUN THROUGH TUE...NE wind 30 kt. Seas 11 ft.

$$

842 
FZAK52 PAFC 041154
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
354 AM AKDT Fri May 4 2018

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.

PKZ199-050045-
354 AM AKDT Fri May 4 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 973 mb low 40 nm southwest of Chignik will move inland to 60 nm
east of Cape Newenham at 972 mb by Sat morning. A new 983 mb low 
Sun morning 200 nm south of Shemya will move towards the western 
Aleutians.

$$

PKZ150-050045-
South of the AK Peninsula Sitkinak to Castle Cape-
354 AM AKDT Fri May 4 2018

...GALE WARNING TODAY...

.TODAY...SW wind 40 kt. Seas 17 ft.
.TONIGHT...S wind 30 kt. Seas 15 ft.
.SAT...SW wind 25 kt. Seas 12 ft.
.SAT NIGHT...SW wind 20 kt. Seas 9 ft.
.SUN...S wind 20 kt. Seas 6 ft.
.MON THROUGH TUE...SE wind 30 kt. Seas 15 ft.

$$

PKZ155-050045-
South of the AK Peninsula Castle Cape to Cape Sarichef-
354 AM AKDT Fri May 4 2018

...GALE WARNING TODAY...

.TODAY...W wind 30 kt. From the Shumagin Islands E, SW wind 40 kt
diminishing to 30 kt in the afternoon. Seas 13 ft.
.TONIGHT...W wind 30 kt. From the Shumagin Islands E, W wind 20 kt. 
Seas 11 ft.
.SAT...W wind 20 kt. Seas 10 ft.
.SAT NIGHT...SW wind 20 kt. Seas 7 ft.
.SUN...S wind 40 kt. Seas 15 ft.
.MON...S wind 40 kt. Seas 19 ft.
.TUE...S wind 30 kt. Seas 17 ft.

$$

PKZ160-050045-
Bristol Bay-
354 AM AKDT Fri May 4 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...E wind 25 kt becoming SW 35 kt in the afternoon. Seas 6
ft building to 10 ft in the afternoon. Rain.
.TONIGHT...SW wind 35 kt diminishing to 25 kt after midnight. Seas
10 ft. Rain showers and snow showers.
.SAT...SW wind 25 kt. Seas 9 ft.
.SAT NIGHT...SW wind 15 kt. Seas 6 ft.
.SUN...S wind 25 kt. Seas 5 ft.
.MON THROUGH TUE...SE wind 35 kt. Seas 8 ft.

$$

PKZ165-050045-
Port Heiden to Cape Sarichef-
354 AM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...NW wind 20 kt increasing to 30 kt in the afternoon. From
Port Moller E, W wind 30 kt. Seas 10 ft. Rain showers and snow
showers.
.TONIGHT...W wind 30 kt. Seas 14 ft. Snow and rain.
.SAT...W wind 25 kt. Seas 12 ft.
.SAT NIGHT...SW wind 15 kt. Seas 8 ft.
.SUN THROUGH MON...SE wind 40 kt. Seas 11 ft.
.TUE...SE wind 35 kt. Seas 8 ft.

$$

PKZ170-050045-
Cape Sarichef to Nikolski Bering Side-
354 AM AKDT Fri May 4 2018

...GALE WARNING TODAY...

.TODAY...NW wind 35 kt. From Dutch Harbor E, NW wind 20 kt increasing
to 35 kt in the afternoon. Seas 16 ft. Rain showers.
.TONIGHT...NW wind 30 kt. Seas 16 ft.
.SAT...W wind 20 kt. Seas 12 ft.
.SAT NIGHT...SW wind 15 kt. Seas 8 ft.
.SUN THROUGH MON...S wind 40 kt. Seas 13 ft.
.TUE...S wind 35 kt. Seas 10 ft.

$$

PKZ171-050045-
Unalaska Bay-
354 AM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 15 kt in the morning increasing to 30 kt. Seas 13 
ft. Snow showers and rain showers.
.TONIGHT...NW wind 30 kt diminishing to 20 kt after midnight. Seas 
13 ft. Snow showers.
.SAT...W wind 20 kt diminishing to 10 kt in the afternoon. Seas 3 
ft. Snow showers.
.SAT NIGHT...SW wind 10 kt. Seas 2 ft.
.SUN...SE wind 30 kt. Seas 5 ft.
.MON...SE wind 25 kt. Seas 4 ft.
.TUE...S wind 20 kt. Seas 2 ft.

$$

PKZ172-050045-
Cape Sarichef to Nikolski Pacific Side-
354 AM AKDT Fri May 4 2018

...GALE WARNING TODAY...

.TODAY...NW wind 35 kt. From Dutch Harbor E, NW wind 20 kt increasing
to 30 kt in the afternoon. Seas 11 ft.
.TONIGHT...NW wind 30 kt. Seas 11 ft.
.SAT...W wind 20 kt. Seas 8 ft.
.SAT NIGHT...SW wind 15 kt. Seas 6 ft.
.SUN THROUGH MON...S wind 40 kt. Seas 21 ft.
.TUE...SW wind 30 kt. Seas 20 ft.

$$

PKZ173-050045-
Nikolski to Seguam Island Bering Side-
354 AM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...NW wind 30 kt. Seas 15 ft.
.TONIGHT...NW wind 30 kt diminishing to 20 kt after midnight. Seas 
14 ft.
.SAT...W wind 20 kt. Seas 11 ft.
.SAT NIGHT...SW wind 15 kt. Seas 8 ft.
.SUN...S wind 40 kt. Seas 13 ft.
.MON...SW wind 30 kt. Seas 14 ft.
.TUE...W wind 30 kt. Seas 14 ft.

$$

PKZ174-050045-
Nikolski to Seguam Island Pacific Side-
354 AM AKDT Fri May 4 2018

...GALE WARNING TODAY...

.TODAY...NW wind 35 kt. Seas 14 ft.
.TONIGHT...NW wind 30 kt diminishing to 20 kt after midnight. Seas 
12 ft.
.SAT...W wind 20 kt. Seas 9 ft.
.SAT NIGHT...SW wind 20 kt. Seas 7 ft.
.SUN...S wind 40 kt. Seas 18 ft.
.MON...SW wind 35 kt. Seas 24 ft.
.TUE...W wind 40 kt. Seas 20 ft.

$$

PKZ175-050045-
Seguam Island to Adak Bering Side-
354 AM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...NW wind 30 kt. Seas 12 ft.
.TONIGHT...NW wind 25 kt. Seas 13 ft.
.SAT...W wind 20 kt. Seas 9 ft.
.SAT NIGHT...SW wind 20 kt. Seas 7 ft.
.SUN...SE wind 30 kt. Seas 10 ft.
.MON THROUGH TUE...W wind 40 kt. Seas 22 ft.

$$

PKZ176-050045-
Seguam Island to Adak Pacific Side-
354 AM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...NW wind 25 kt. Seas 10 ft.
.TONIGHT...NW wind 25 kt. Seas 10 ft.
.SAT...W wind 25 kt. Seas 8 ft.
.SAT NIGHT...SW wind 30 kt. Seas 8 ft.
.SUN...S wind 35 kt. Seas 15 ft.
.MON...W wind 45 kt. Seas 21 ft.
.TUE...W wind 40 kt. Seas 19 ft.

$$

PKZ177-050045-
Adak to Kiska-
354 AM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...NW wind 25 kt. Seas 10 ft.
.TONIGHT...W wind 25 kt. Seas 9 ft.
.SAT...W wind 20 kt. Seas 8 ft.
.SAT NIGHT...S wind 30 kt. Seas 7 ft.
.SUN...NE wind 40 kt. Seas 20 ft.
.MON...NW wind 45 kt. Seas 22 ft.
.TUE...NW wind 40 kt. Seas 20 ft.

$$

PKZ178-050045-
Kiska to Attu-
354 AM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 30 kt in the morning diminishing to 20 kt. Seas 9 
ft.
.TONIGHT...W wind 25 kt. Seas 8 ft.
.SAT...W wind 20 kt becoming S 10 kt in the afternoon. Seas 7 ft.
.SAT NIGHT...S wind 15 kt becoming E 30 kt after midnight. Seas 8 
ft.
.SUN...N wind 40 kt. Seas 19 ft.
.MON...NW wind 40 kt. Seas 19 ft.
.TUE...NW wind 30 kt. Seas 15 ft.

$$

PKZ179-050045-
Pribilof Islands Near Shore Waters-
354 AM AKDT Fri May 4 2018

...GALE WARNING TODAY...

.TODAY...N wind 35 kt. Seas 15 ft.
.TONIGHT...NW wind 30 kt. Seas 13 ft.
.SAT...NW wind 20 kt. Seas 10 ft.
.SAT NIGHT...Variable wind 10 kt. Seas 7 ft.
.SUN THROUGH MON...SE wind 35 kt. Seas 15 ft.
.TUE...SE wind 30 kt. Seas 14 ft.

$$

PKZ180-050045-
Kuskokwim Delta and Etolin Strait-
354 AM AKDT Fri May 4 2018

...GALE WARNING TODAY...

.TODAY...N wind 25 kt becoming NW 35 kt in the afternoon. Seas 9 ft.
Rain.
.TONIGHT...NW wind 30 kt. Seas 11 ft.
.SAT...W wind 30 kt diminishing to 20 kt in the afternoon. Seas 10 
ft.
.SAT NIGHT...W wind 20 kt. Seas 7 ft.
.SUN...SE wind 30 kt. Seas 7 ft.
.MON...SE wind 40 kt. Seas 13 ft.
.TUE...SE wind 35 kt. Seas 11 ft.

$$

PKZ181-050045-
North and West of Nunivak Island-
354 AM AKDT Fri May 4 2018

...GALE WARNING TODAY...

.TODAY...N wind 35 kt. Seas 12 ft.
.TONIGHT...N wind 30 kt. Seas 11 ft.
.SAT...NW wind 30 kt diminishing to 20 kt in the afternoon. Seas
10 ft.
.SAT NIGHT...W wind 20 kt. Seas 7 ft.
.SUN...S wind 30 kt. Seas 6 ft.
.MON...E wind 40 kt. Seas 13 ft.
.TUE...E wind 30 kt. Seas 9 ft.

$$

PKZ185-050045-
Saint Matthew Island Waters-
354 AM AKDT Fri May 4 2018

...GALE WARNING TODAY...

.TODAY...E of Saint Matthew Island, N wind 35 kt. W of Saint Matthew
Island, N wind 25 kt. Seas 10 ft.
.TONIGHT...N wind 30 kt. Seas 11 ft.
.SAT...N wind 25 kt. Seas 9 ft.
.SAT NIGHT...N wind 20 kt. Seas 7 ft.
.SUN...E wind 30 kt. Seas 8 ft.
.MON...NE wind 40 kt. Seas 17 ft.
.TUE...NE wind 35 kt. Seas 15 ft.

$$

203 
FZAK52 PAFC 042355
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
355 PM AKDT Fri May 4 2018

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.

PKZ199-051245-
355 PM AKDT Fri May 4 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 972 mb low 50 nm northeast of Platinum moves into the northern
Bering with its front persisting over the eastern Bering through Sun
afternoon. A 996 mb low 440 nm southwest of Attu Sat afternoon moves
to 80 nm south of Kiska at 975 mb for Sun afternoon. Its front moves
over the Aleutians through Sun afternoon.

$$

PKZ150-051245-
South of the AK Peninsula Sitkinak to Castle Cape-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 15 ft.
.SAT...SW wind 25 kt. Seas 11 ft.
.SAT NIGHT...SW wind 20 kt. Seas 8 ft.
.SUN...SW wind 15 kt. Seas 7 ft.
.SUN NIGHT...S wind 20 kt. Seas 5 ft.
.MON THROUGH TUE...SE wind 30 kt. Seas 15 ft.
.WED...S wind 15 kt. Seas 11 ft.

$$

PKZ155-051245-
South of the AK Peninsula Castle Cape to Cape Sarichef-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...W wind increasing to 25 kt. Seas 12 ft.
.SAT...W wind 25 kt. Seas 9 ft.
.SAT NIGHT...W wind 20 kt. Seas 7 ft.
.SUN...S wind 20 kt. Seas 6 ft.
.SUN NIGHT...S wind 40 kt. Seas 14 ft.
.MON...S wind 40 kt. Seas 19 ft.
.TUE...S wind 30 kt. Seas 17 ft.
.WED...S wind 20 kt. Seas 13 ft.

$$

PKZ160-051245-
Bristol Bay-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...SW wind 30 kt. Seas 10 ft. Rain and snow.
.SAT...SW wind 25 kt. Seas 9 ft.
.SAT NIGHT...SW wind 20 kt. Seas 6 ft.
.SUN...S wind 15 kt. Seas 4 ft.
.SUN NIGHT...SE wind 20 kt. Seas 4 ft.
.MON THROUGH TUE...SE wind 35 kt. Seas 8 ft.
.WED...SE wind 20 kt. Seas 4 ft.

$$

PKZ165-051245-
Port Heiden to Cape Sarichef-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 8 ft in the evening building to 14 ft.
Rain showers.
.SAT...W wind 25 kt. Seas 12 ft.
.SAT NIGHT...W wind 15 kt. Seas 8 ft.
.SUN...S wind 20 kt. Seas 7 ft.
.SUN NIGHT...SE wind 40 kt. Seas 11 ft.
.MON...SE wind 40 kt. Seas 11 ft.
.TUE...SE wind 35 kt. Seas 8 ft.
.WED...S wind 25 kt. Seas 7 ft.

$$

PKZ170-051245-
Cape Sarichef to Nikolski Bering Side-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 15 ft.
.SAT...W wind 20 kt. Seas 12 ft.
.SAT NIGHT...W wind 15 kt. Seas 8 ft.
.SUN...S wind 30 kt. Seas 7 ft.
.SUN NIGHT...SE wind 45 kt. Seas 14 ft.
.MON...SE wind 40 kt. Seas 13 ft.
.TUE...S wind 35 kt. Seas 10 ft.
.WED...SW wind 25 kt. Seas 10 ft.

$$

PKZ171-051245-
Unalaska Bay-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW wind 30 kt. Gusts to 40 kt in the evening. Seas 13 ft.
Snow showers.
.SAT...W wind 20 kt. Seas 3 ft. Snow showers.
.SAT NIGHT...W wind 10 kt in the evening becoming variable less
than 10 kt. Seas 2 ft.
.SUN...S wind 25 kt. Seas 4 ft.
.SUN NIGHT...SE wind 35 kt. Seas 5 ft.
.MON...SE wind 25 kt. Seas 4 ft.
.TUE...S wind 20 kt. Seas 2 ft.
.WED...SW wind 15 kt. Seas 2 ft.

$$

PKZ172-051245-
Cape Sarichef to Nikolski Pacific Side-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...NW wind 30 kt. Seas 10 ft.
.SAT...W wind 20 kt. Seas 8 ft.
.SAT NIGHT...W wind 15 kt. Seas 6 ft.
.SUN...S wind 35 kt. Seas 8 ft.
.SUN NIGHT...S wind 45 kt. Seas 20 ft.
.MON...S wind 40 kt. Seas 22 ft.
.TUE...SW wind 30 kt. Seas 20 ft.
.WED...SW wind 25 kt. Seas 14 ft.

$$

PKZ173-051245-
Nikolski to Seguam Island Bering Side-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 14 ft.
.SAT...W wind 20 kt. Seas 11 ft.
.SAT NIGHT...W wind 15 kt. Seas 8 ft.
.SUN AND SUN NIGHT...S wind 40 kt. Seas 15 ft.
.MON...SW wind 30 kt. Seas 14 ft.
.TUE THROUGH WED...W wind 30 kt. Seas 13 ft.

$$

PKZ174-051245-
Nikolski to Seguam Island Pacific Side-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...NW wind 25 kt. Seas 11 ft.
.SAT...W wind 20 kt. Seas 10 ft.
.SAT NIGHT...SW wind 20 kt. Seas 7 ft.
.SUN...SE wind 40 kt. Seas 17 ft.
.SUN NIGHT...S wind 45 kt. Seas 20 ft.
.MON...SW wind 35 kt. Seas 23 ft.
.TUE...W wind 40 kt. Seas 20 ft.
.WED...W wind 30 kt. Seas 15 ft.

$$

PKZ175-051245-
Seguam Island to Adak Bering Side-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...NW wind 25 kt. Seas 12 ft.
.SAT...W wind 20 kt. Seas 10 ft.
.SAT NIGHT...S wind 20 kt. Seas 7 ft.
.SUN...SE wind 35 kt. Seas 13 ft.
.SUN NIGHT...S wind 25 kt. Seas 12 ft.
.MON THROUGH TUE...W wind 40 kt. Seas 22 ft.
.WED...W wind 30 kt. Seas 13 ft.

$$

PKZ176-051245-
Seguam Island to Adak Pacific Side-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...NW wind 25 kt. Seas 9 ft.
.SAT...W wind 25 kt. Seas 8 ft.
.SAT NIGHT...SW wind 15 kt becoming S 25 kt after midnight. Seas
6 ft. Snow.
.SUN...SE wind 40 kt. Seas 16 ft.
.SUN NIGHT...SW wind 30 kt. Seas 17 ft.
.MON...W wind 45 kt. Seas 21 ft.
.TUE...W wind 40 kt. Seas 19 ft.
.WED...W wind 30 kt. Seas 12 ft.

$$

PKZ177-051245-
Adak to Kiska-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 9 ft.
.SAT...W wind 20 kt. Seas 8 ft.
.SAT NIGHT...SW wind 15 kt becoming SE 30 kt after midnight. Seas
8 ft. Snow and rain.
.SUN...E wind 35 kt. Seas 14 ft.
.SUN NIGHT...NW wind 40 kt. Seas 19 ft.
.MON...NW wind 45 kt. Seas 23 ft.
.TUE...NW wind 40 kt. Seas 20 ft.
.WED...NW wind 30 kt. Seas 13 ft.

$$

PKZ178-051245-
Kiska to Attu-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY TONIGHT AND SATURDAY NIGHT...

.TONIGHT...W wind 20 kt. Seas 8 ft.
.SAT...W wind 20 kt. Seas 7 ft.
.SAT NIGHT...SE wind 20 kt becoming E 30 kt after midnight. Seas
5 ft building to 9 ft after midnight.  and rain.
.SUN...NE wind 35 kt. Seas 15 ft.
.SUN NIGHT...N wind 40 kt. Seas 22 ft.
.MON...NW wind 40 kt. Seas 21 ft.
.TUE THROUGH WED...NW wind 30 kt. Seas 14 ft.

$$

PKZ179-051245-
Pribilof Islands Near Shore Waters-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...NW wind 30 kt. Gusts to 40 kt through the evening. Seas 
13 ft.
.SAT...NW wind 20 kt. Seas 10 ft.
.SAT NIGHT...W wind 15 kt. Seas 7 ft.
.SUN...SE wind 25 kt. Seas 5 ft.
.SUN NIGHT...SE wind 40 kt. Seas 17 ft.
.MON THROUGH TUE...SE wind 30 kt. Seas 15 ft.
.WED...S wind 20 kt. Seas 8 ft.

$$

PKZ180-051245-
Kuskokwim Delta and Etolin Strait-
355 PM AKDT Fri May 4 2018

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 35 kt. Seas 11 ft. Rain showers.
.SAT...W wind 25 kt. Seas 10 ft.
.SAT NIGHT...W wind 20 kt. Seas 7 ft.
.SUN...S wind 15 kt. Seas 5 ft.
.SUN NIGHT...SE wind 30 kt. Seas 7 ft.
.MON...SE wind 40 kt. Seas 14 ft.
.TUE...SE wind 35 kt. Seas 11 ft.
.WED...SE wind 25 kt. Seas 7 ft.

$$

PKZ181-051245-
North and West of Nunivak Island-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...NW wind 30 kt. Seas 11 ft.
.SAT...NW wind 30 kt. Seas 10 ft.
.SAT NIGHT...W wind 20 kt. Seas 7 ft.
.SUN...Variable wind 10 kt. Seas 4 ft.
.SUN NIGHT...SE wind 30 kt. Seas 6 ft.
.MON...E wind 40 kt. Seas 14 ft.
.TUE...E wind 30 kt. Seas 9 ft.
.WED...E wind 25 kt. Seas 8 ft.

$$

PKZ185-051245-
Saint Matthew Island Waters-
355 PM AKDT Fri May 4 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...N wind 30 kt. Seas 11 ft. Freezing spray.
.SAT...NW wind 25 kt. Seas 10 ft.
.SAT NIGHT...NW wind 20 kt. Seas 8 ft. Freezing spray.
.SUN...NE wind 15 kt. Seas 6 ft.
.SUN NIGHT...E wind 30 kt. Seas 8 ft.
.MON...NE wind 40 kt. Seas 17 ft.
.TUE...NE wind 35 kt. Seas 15 ft.
.WED...E wind 30 kt. Seas 11 ft.

$$

787 
FZAK52 PAFC 051144
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
344 AM AKDT Sat May 5 2018

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.

PKZ199-060045-
344 AM AKDT Sat May 5 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 996 mb low this afternoon 420 nm southwest of Shemya moves to 
190 nm south of Shemya at 977 mb by Sun morning and then to 110 
nm southwest of Adak at 972 mb by Mon morning. The associated 
front moves across the Aleutians through Mon morning.

$$

PKZ150-060045-
South of the AK Peninsula Sitkinak to Castle Cape-
344 AM AKDT Sat May 5 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SW wind 25 kt. Seas 12 ft.
.TONIGHT...SW wind 20 kt. Seas 8 ft.
.SUN...SW wind 10 kt. Seas 6 ft.
.SUN NIGHT...S wind 20 kt. Seas 5 ft.
.MON THROUGH TUE...SE wind 30 kt. Seas 13 ft.
.WED...S wind 15 kt. Seas 13 ft.

$$

PKZ155-060045-
South of the AK Peninsula Castle Cape to Cape Sarichef-
344 AM AKDT Sat May 5 2018

...SMALL CRAFT ADVISORY TODAY...

.TODAY...W wind 25 kt. Seas 9 ft.
.TONIGHT...W wind 20 kt. Seas 7 ft.
.SUN...S wind 20 kt. Seas 6 ft.
.SUN NIGHT...S wind 40 kt. Seas 14 ft.
.MON...S wind 40 kt. Seas 18 ft.
.TUE...S wind 30 kt. Seas 19 ft.
.WED...S wind 20 kt. Seas 14 ft.

$$

PKZ160-060045-
Bristol Bay-
344 AM AKDT Sat May 5 2018

...SMALL CRAFT ADVISORY TODAY...

.TODAY...SW wind 25 kt. Seas 8 ft.
.TONIGHT...SW wind 20 kt. Seas 6 ft.
.SUN...S wind 15 kt becoming variable up to 10 kt in the afternoon. 
Seas 4 ft.
.SUN NIGHT...SE wind 20 kt. Seas 5 ft.
.MON THROUGH TUE...SE wind 35 kt. Seas 8 ft.
.WED...SE wind 20 kt. Seas 4 ft.

$$

PKZ165-060045-
Port Heiden to Cape Sarichef-
344 AM AKDT Sat May 5 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...W wind 25 kt. Seas 11 ft.
.TONIGHT...W wind 15 kt. Seas 8 ft.
.SUN...S wind 20 kt. Seas 6 ft.
.SUN NIGHT...SE wind 40 kt. Seas 11 ft.
.MON...SE wind 40 kt. Seas 11 ft.
.TUE...SE wind 35 kt. Seas 8 ft.
.WED...SE wind 20 kt. Seas 5 ft.

$$

PKZ170-060045-
Cape Sarichef to Nikolski Bering Side-
344 AM AKDT Sat May 5 2018

...GALE WARNING SUNDAY...

.TODAY...W wind 25 kt. Seas 12 ft.
.TONIGHT...W wind 15 kt. Seas 8 ft.
.SUN...E of Dutch Harbor, S wind 15 kt increasing to 25 kt in the
afternoon. W of Dutch Harbor, S wind 20 kt increasing to 35 kt in 
the afternoon. Seas 7 ft. Rain.
.SUN NIGHT...SE wind 45 kt. Seas 14 ft.
.MON...SE wind 40 kt. Seas 13 ft.
.TUE...S wind 35 kt. Seas 11 ft.
.WED...SW wind 25 kt. Seas 9 ft.

$$

PKZ171-060045-
Unalaska Bay-
344 AM AKDT Sat May 5 2018

...SMALL CRAFT ADVISORY TODAY AND SUNDAY...

.TODAY...W wind 25 kt diminishing to 15 kt in the afternoon. Seas
4 ft subsiding to 2 ft in the afternoon.
.TONIGHT...W wind 10 kt in the evening becoming variable less than
10 kt. Seas 2 ft.
.SUN...S wind 10 kt becoming SE 25 kt in the afternoon. Seas 2 ft 
building to 4 ft in the afternoon. Rain.
.SUN NIGHT...SE wind 35 kt. Seas 5 ft.
.MON...SE wind 25 kt. Seas 4 ft.
.TUE...S wind 20 kt. Seas 2 ft.
.WED...S wind 10 kt. Seas 2 ft.

$$

PKZ172-060045-
Cape Sarichef to Nikolski Pacific Side-
344 AM AKDT Sat May 5 2018

...GALE WARNING SUNDAY...

.TODAY...W wind 25 kt. Seas 8 ft.
.TONIGHT...W wind 15 kt. Seas 6 ft.
.SUN...E of Dutch Harbor, S wind 15 kt increasing to 25 kt in the
afternoon. W of Dutch Harbor, S wind 20 kt increasing to 35 kt in 
the afternoon. Seas 8 ft. Rain.
.SUN NIGHT...S wind 45 kt. Seas 20 ft.
.MON...S wind 40 kt. Seas 22 ft.
.TUE...SW wind 30 kt. Seas 20 ft.
.WED...SW wind 25 kt. Seas 14 ft.

$$

PKZ173-060045-
Nikolski to Seguam Island Bering Side-
344 AM AKDT Sat May 5 2018

...GALE WARNING SUNDAY...

.TODAY...W wind 20 kt. Seas 11 ft.
.TONIGHT...W wind 15 kt. Seas 8 ft.
.SUN...SE wind 25 kt increasing to 40 kt in the afternoon. Seas 6
ft building to 14 ft in the afternoon. Patchy fog. Snow and rain.
.SUN NIGHT...S wind 45 kt. Seas 16 ft.
.MON...SW wind 30 kt. Seas 14 ft.
.TUE...W wind 30 kt. Seas 12 ft.
.WED...W wind 25 kt. Seas 11 ft.

$$

PKZ174-060045-
Nikolski to Seguam Island Pacific Side-
344 AM AKDT Sat May 5 2018

...GALE WARNING SUNDAY...

.TODAY...W wind 20 kt. Seas 9 ft.
.TONIGHT...W wind 15 kt. Seas 7 ft.
.SUN...S wind 30 kt becoming SE 45 kt in the afternoon. Seas 7 ft
building to 16 ft in the afternoon. Patchy fog. Rain and snow.
.SUN NIGHT...S wind 45 kt. Seas 21 ft.
.MON...SW wind 35 kt. Seas 24 ft.
.TUE...W wind 40 kt. Seas 21 ft.
.WED...W wind 25 kt. Seas 15 ft.

$$

PKZ175-060045-
Seguam Island to Adak Bering Side-
344 AM AKDT Sat May 5 2018

...GALE WARNING SUNDAY...

.TODAY...W wind 20 kt. Seas 9 ft.
.TONIGHT...S wind 20 kt. Seas 8 ft.
.SUN...SE wind 25 kt in the morning increasing to 40 kt. Seas 8 ft 
building to 13 ft in the afternoon. Patchy fog. Rain and snow.
.SUN NIGHT...S wind 25 kt. Seas 11 ft.
.MON THROUGH TUE...W wind 40 kt. Seas 19 ft.
.WED...W wind 25 kt. Seas 12 ft.

$$

PKZ176-060045-
Seguam Island to Adak Pacific Side-
344 AM AKDT Sat May 5 2018

...GALE WARNING SUNDAY...

.TODAY...W wind 25 kt diminishing to 15 kt in the afternoon. Seas
8 ft.
.TONIGHT...SW wind 15 kt becoming S 25 kt after midnight. Seas 6
ft. Snow and rain.
.SUN...SE wind 40 kt. Seas 16 ft. Patchy fog. Rain and snow.
.SUN NIGHT...S wind 30 kt. Seas 17 ft.
.MON...W wind 45 kt. Seas 22 ft.
.TUE...W wind 40 kt. Seas 20 ft.
.WED...W wind 25 kt. Seas 12 ft.

$$

PKZ177-060045-
Adak to Kiska-
344 AM AKDT Sat May 5 2018

...GALE WARNING SUNDAY...

.TODAY...W wind 20 kt. Seas 8 ft.
.TONIGHT...SW wind 15 kt becoming SE 30 kt after midnight. Seas
8 ft. Rain and snow.
.SUN...E wind 35 kt. Pacific side, E wind 35 kt becoming S 25 kt in 
the afternoon. Seas 13 ft. Patchy fog. Rain and snow.
.SUN NIGHT...NW wind 40 kt. Seas 20 ft.
.MON...NW wind 45 kt. Seas 23 ft.
.TUE...NW wind 40 kt. Seas 21 ft.
.WED...NW wind 25 kt. Seas 12 ft.

$$

PKZ178-060045-
Kiska to Attu-
344 AM AKDT Sat May 5 2018

...GALE WARNING SUNDAY...

.TODAY...W wind 15 kt becoming variable up to 10 kt in the afternoon.
Seas 7 ft.
.TONIGHT...Bering side, variable up to 10 kt in the evening becoming
E 20 kt. Pacific side, SE wind 20 kt in the evening becoming E 30 
kt. Seas 8 ft. Rain.
.SUN...NE wind 35 kt. Seas 15 ft. Rain and snow.
.SUN NIGHT...N wind 45 kt. Seas 22 ft.
.MON...NW wind 40 kt. Seas 22 ft.
.TUE...NW wind 30 kt. Seas 17 ft.
.WED...NW wind 30 kt. Seas 12 ft.

$$

PKZ179-060045-
Pribilof Islands Near Shore Waters-
344 AM AKDT Sat May 5 2018

...SMALL CRAFT ADVISORY TODAY AND SUNDAY...

.TODAY...NW wind 25 kt diminishing to 15 kt in the afternoon. Seas 
10 ft.
.TONIGHT...W wind 15 kt. Seas 7 ft.
.SUN...Variable wind 10 kt in the morning becoming SE 25 kt. Seas 5 
ft.
.SUN NIGHT...SE wind 40 kt. Seas 17 ft.
.MON THROUGH TUE...E wind 30 kt. Seas 16 ft.
.WED...SE wind 20 kt. Seas 7 ft.

$$

PKZ180-060045-
Kuskokwim Delta and Etolin Strait-
344 AM AKDT Sat May 5 2018

...SMALL CRAFT ADVISORY TODAY...

.TODAY...W wind 25 kt. Seas 9 ft.
.TONIGHT...W wind 20 kt. Seas 7 ft.
.SUN...SW wind 10 kt becoming S in the afternoon. Seas 4 ft.
.SUN NIGHT...SE wind 30 kt. Seas 8 ft.
.MON...SE wind 40 kt. Seas 14 ft.
.TUE...SE wind 35 kt. Seas 11 ft.
.WED...SE wind 20 kt. Seas 7 ft.

$$

PKZ181-060045-
North and West of Nunivak Island-
344 AM AKDT Sat May 5 2018

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NW wind 30 kt. Seas 10 ft. Freezing spray in the morning.
.TONIGHT...W wind 20 kt. Seas 7 ft. Freezing spray.
.SUN...SW wind 15 kt. Seas 4 ft.
.SUN NIGHT...SE wind 30 kt. Seas 7 ft.
.MON...E wind 40 kt. Seas 13 ft.
.TUE...E wind 30 kt. Seas 9 ft.
.WED...E wind 25 kt. Seas 7 ft.

$$

PKZ185-060045-
Saint Matthew Island Waters-
344 AM AKDT Sat May 5 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 25 kt. Seas 9 ft. Freezing spray N of Saint Matthew
Island in the morning.
.TONIGHT...W of Saint Matthew Island, NW wind 20 kt. E of Saint
Matthew Island, NW wind 20 kt in the evening diminishing to 10 kt. 
Seas 8 ft. Freezing spray N of Saint Matthew Island.
.SUN...W of Saint Matthew Island, NW wind 15 kt becoming E in the 
afternoon. E of Saint Matthew Island, variable wind up to 10 kt. Seas
5 ft.
.SUN NIGHT...E wind 30 kt. Seas 8 ft.
.MON...NE wind 40 kt. Seas 17 ft.
.TUE...NE wind 35 kt. Seas 14 ft.
.WED...NE wind 25 kt. Seas 10 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
459 PM AKDT Wed May 2 2018

.ANALYSIS AND UPPER LEVELS...
The upper level shortwave that brought a round of late season
snowfall to the Matanuska Valley eastward into the Copper River
Basin and Thompson Pass areas overnight continues to slowly move
off to the east and dissipate. An area of weak high pressure
behind this shortwave brought a brief period of sunny skies to
Southcentral this morning, however this quickly filled in as
diurnal convection from the Kenai Peninsula spreads northward
towards the Anchorage Bowl. This area of convection even produced
some very small hail near the Soldotna area late this morning as
showers fell through low freezing levels. Further west over
Southwest Mainland this high pressure was too weak to provide much
relief from the stratus and areas of snow that developed,
allowing for widespread cloud cover to continue into this
afternoon. This is quickly beginning to fill in as the next
system approaches from the Eastern Bering. This low will be the
focus not only for another round of rain/snow and gusty easterly
winds for the Southwest Mainland, but also for a developing
triple point low that will develop in the Gulf on Thursday.

&&

.MODEL DISCUSSION...
The models remain in generally good synoptic scale agreement
through Thursday with the Eastern Bering low as it develops a
triple point low near the AKPen this evening. Ahead of this low,
none of the model guidance has handled the early diurnal convection
that has occurred over Southcentral well, as even the high
resolution models held off until late this afternoon to bring any
showers into the area. Afterwards there remains some uncertainty
in the low track and intensity of the low that will rapidly
develop under the Bering low and enter the Southwest Mainland for
Friday. The GFS in particular continues to be an outlier by
producing a deeper and further west position as the low makes
landfall late Friday. Since the GFS has been one of more variable
models with this system as it had previously been much further
east and deeper, this was treated as an outlier in favor of the
more consistent NAM and EC.

&&

.AVIATION...
PANC...The first question for early this evening will be for the
possible development of convective rain showers around the
terminal not only along the mountains be also around Cook Inlet as
showers from the Kenai Peninsula move northward. These should
generally be light and spotty with VFR conditions expected. Winds
will also shift to southeasterly and gust to around 20 kt this
evening as the gradient through Turnagain Arm increases.
Afterwards VFR conditions with light southeast winds are expected
into Thursday.

&&

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

A pattern shift in the upper level jet stream sets an active wet
and windy pattern into motion for the end of the week. The main
challenge in the forecast is focused around a storm system which
pushes across the Gulf on Thursday and then northward through
Southcentral Thursday night through Friday evening. Precipitation
with this storm system is primarily forecast as rain; however,
higher elevations over 1500 feet will stay cold enough to see all
snow and cooler locations inland changes over to light snow
during the night and early morning hours.

Gusty southeasterly winds and rain develop along the front which
is expected to move across Kodiak Island late this evening. The
frontal boundary moves quickly north making it to the Kenai and
north gulf coast by Thursday morning. The highest accumulations
are expected along the coast as abundant subtropical moisture
advects toward the southern mainland with the jet stream orienting
south to north as it noses along the Kenai on Friday. The jet
nudges toward the Alaska range into the the evening bringing the
best chance for accumulating rain across inland locations.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
A frontal system currently centered over the Pribilof Islands will
move east tonight and spread precipitation across the coast and up
the Kuskokwim River Valley tomorrow. Easterly winds will increase
tonight and tomorrow as the front lifts northward with the highest
gusts seen through the Kamishak Gap and across Lake Iliamna.

The system will retrograde back to the south Thursday night as a
vigorous upper level low drops south across the Aleutians,
swinging around the old low while spinning up a strong surface
low. This low will be supported by a stout southerly upper level
jet which will send the system north across the AKPEN and into the
Bristol Bay area by Friday afternoon. A long southerly fetch of
wind and moisture will slam into the southern AKPEN coast and will
spread across the SW interior. Rain will be focused over the
Bristol Bay area and the Kuskokwim River Valley Friday morning
before spreading north and west into the Kuskokwim Delta by the
afternoon. Warm air associated with this system will keep freezing
levels higher so precipitation should stay all rain for most
lower elevation sites. Another round of gusty winds across the
western side of the Alaska and Aleutian Ranges are also expected
with this system, with the strongest gusts seen through the
Kamishak Gap and across Lake Iliamna.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
A series of low pressure systems will impact the eastern Bering
and Aleutian Island chain bringing strong winds and precipitation
to the area through the end of the week. The strongest low will
form south of Cold Bay Thursday evening and rapidly strengthen as
it moves north. Cold air wrapping around the backside of the low
combined with a tightening pressure gradient will lead to a
a narrow band of northerly gale force winds developing from the
Pribilofs south to Dutch Harbor Thursday night through Friday
evening. Conditions will be a bit quieter for the western half of
the Bering though cold northerly flow will lead to some snow
showers developing between Adak and Dutch Harbor through the end
of the week.

&&

.LONG TERM FORECAST (Days 3 through 7...Sat through Wed)...
The weekend will start out with yet another strong low pressure
system moving inland. This system will bring strong winds, heavy
rain, and even the chance for heavy snow for higher elevations.
The low pressure center at the surface will drive from south to
north across SW AK early Sat morning. This will bring strong winds
to parts of Kodiak Island, into Bristol Bay, and along the Gulf of
AK coastline. The difference with this system from yesterday is
that it does not hold together and move far enough north to spread
much of these winds inland across Southcentral and Cook Inlet.

This system will be interesting in how far south it taps into
moisture. The fetch will extend all the way down to nearly 30N.
This is known as an atmospheric river. And at least to start the
weekend, it will be pointed at the Gulf Coast. The heaviest
precipitation does slide slightly east late Sat, but is quickly
reinforced along the coast by another shortwave moving into the
area early Sun. This heavy precipitation will work in tandem with
some cold air that filters into this system to provide some snow
for the higher elevations such as Thompson Pass. Being that it is
early May, it becomes harder and harder to get significant
snowfall, but certainly not impossible. There are many variables
that need to come together to keep the precipitation from turning
over to rain, but we have introduced a healthy (5-10") of snow to
the coastal mountains with this package.

By Sun and Mon, the pattern starts to show two main features: a
building North American Ridge and a very broad, unseasonably deep
low over the Central Aleutians. The ridge will try to build up
from SE AK, but as it does so, it ushers in another shot of
moderate rain and wind for Prince William Sound and areas east.
By the middle of next week, all models are in fairly good
agreement that the Aleutian low will slide very near the Cold Bay
area. The trend has been to take this low slightly further south
and try to build some weak ridging over the mainland from the
Yukon Territory. However, for now, it looks to continue to be
mostly cloudy and slightly warmer for Southcentral with continued
wet along the Gulf Coast.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Flood Watch 155. Flood Advisory 152.
MARINE...Gale 132 150 155 170 172 173 174 179.

&&

SYNOPSIS AND MODEL DISCUSSION...DEK
SOUTHCENTRAL ALASKA...KH
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...KVP
LONG TERM...MSO