Gale Warning 336, NWS Anchorage, AK

261 
FZAK52 PAFC 231138
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
338 AM AKDT Mon Apr 23 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.

PKZ199-240045-
338 AM AKDT Mon Apr 23 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 979 mb low 225 nm West of St Paul Island pulls its front across
the northern Bering and dissipates Tue morning. A 973 mb low 50 nm 
northwest of Kiska moves to 60 nm north of Atka at 967 mb Mon 
evening and shifts to 45 nm southwest of Kipnuk at 982 mb for Wed 
morning. A 974 mb low forms on the front 60 nm west of Kipnuk Tue 
morning and moves to 120 nm southwest of St Matthew Island at 972 mb 
Wed morning.

$$

PKZ150-240045-
South of the AK Peninsula Sitkinak to Castle Cape-
338 AM AKDT Mon Apr 23 2018

...GALE WARNING TONIGHT and TUESDAY...

.TODAY...S wind 25 kt. Seas 11 ft.
.TONIGHT...S wind 35 kt. Seas 18 ft. Rain.
.TUE...SW wind 35 kt decreasing to 30 kt in the afternoon. 
Seas 18 ft.
.TUE NIGHT...SW wind 30 kt. Seas 18 ft.
.WED...SW wind 30 kt. Seas 18 ft.
.THU...SW wind 20 kt. Seas 14 ft.
.FRI...Variable wind 10 kt. Seas 7 ft.

$$

PKZ155-240045-
South of the AK Peninsula Castle Cape to Cape Sarichef-
338 AM AKDT Mon Apr 23 2018

...GALE WARNING TUESDAY...

.TODAY...S wind 30 kt. Seas 14 ft. Widespread rain showers.
.TONIGHT...S wind 30 kt. Seas 17 ft. Rain.
.TUE...SW wind 35 kt. Seas 21 ft.
.TUE NIGHT...SW wind 35 kt. Seas 22 ft.
.WED...SW wind 30 kt. Seas 21 ft.
.THU...SW wind 20 kt. Seas 14 ft.
.FRI...Variable wind 10 kt. Seas 12 ft.

$$

PKZ160-240045-
Bristol Bay-
338 AM AKDT Mon Apr 23 2018

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

.TODAY...SE wind 20 kt. Seas 6 ft. Snow.
.TONIGHT...SE wind 30 kt. Seas 8 ft. Rain.
.TUE...SW wind 25 kt. Seas 9 ft.
.TUE NIGHT...S wind 30 kt. Seas 11 ft.
.WED...S wind 30 kt. Seas 12 ft.
.THU...S wind 15 kt. Seas 6 ft.
.FRI...S wind 10 kt. Seas 5 ft.

$$

PKZ165-240045-
Port Heiden to Cape Sarichef-
338 AM AKDT Mon Apr 23 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...S wind 25 kt decreasing to 15 kt in the afternoon. 
Seas 8 ft.
.TONIGHT...S wind 25 kt. Seas 9 ft. Rain.
.TUE...S wind 30 kt. Seas 15 ft.
.TUE NIGHT...SW wind 35 kt. Seas 16 ft.
.WED...SW wind 30 kt. Seas 14 ft.
.THU...SW wind 20 kt. Seas 9 ft.
.FRI...Variable wind 10 kt. Seas 11 ft.

$$

PKZ170-240045-
Cape Sarichef to Nikolski Bering Side-
338 AM AKDT Mon Apr 23 2018

...GALE WARNING TUESDAY...

.TODAY...SW wind 30 kt decreasing to 20 kt in the afternoon. 
Seas 10 ft.
.TONIGHT...S wind 30 kt. Seas 15 ft. Rain showers.
.TUE...SW wind 30 increasing to 35 kt in the afternoon. 
Seas 16 ft. Rain showers.
.TUE NIGHT...SW wind 35 kt. Seas 16 ft.
.WED...W wind 25 kt. Seas 13 ft.
.THU...W wind 20 kt. Seas 10 ft.
.FRI...SW wind 15 kt. Seas 13 ft.

$$

PKZ171-240045-
Unalaska Bay-
338 AM AKDT Mon Apr 23 2018

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

.TODAY...S wind 10 kt. Seas 2 ft.
.TONIGHT...SW wind 15 kt increasing to 25 kt after midnight. 
Seas 2 ft building to 4 ft after midnight. Rain showers.
.TUE...SW wind 30 kt. Gusts up to 40 kt increasing to 50 kt in the 
afternoon. Seas 5 ft. Rain showers.
.TUE NIGHT...SW wind 30 kt. Seas 5 ft.
.WED...SW wind 20 kt. Seas 3 ft.
.THU...W wind 15 kt. Seas 2 ft.
.FRI...SW wind 10 kt. Seas 2 ft.

$$

PKZ172-240045-
Cape Sarichef to Nikolski Pacific Side-
338 AM AKDT Mon Apr 23 2018

...GALE WARNING TONIGHT AND TUESDAY...

.TODAY...SW wind 25 kt. Seas 12 ft.
.TONIGHT...SW wind 25 kt increasing to 35 kt after midnight. Seas
14 ft building to 20 ft after midnight. Widespread rain showers.
.TUE...SW wind 40 kt. Seas 23 ft. Rain showers.
.TUE NIGHT...SW wind 40 kt. Seas 24 ft.
.WED...W wind 30 kt. Seas 20 ft.
.THU...W wind 20 kt. Seas 12 ft.
.FRI...SW wind 15 kt. Seas 14 ft.

$$

PKZ173-240045-
Nikolski to Seguam Island Bering Side-
338 AM AKDT Mon Apr 23 2018

...GALE WARNING TUESDAY...

.TODAY...SW wind 30 kt. Seas 13 ft.
.TONIGHT...S wind 30 kt. Seas 15 ft. Widespread rain showers.
.TUE...SW wind 30 kt increasing to 40 kt in the afternoon. 
Seas 19 ft. Rain showers.
.TUE NIGHT...W wind 30 kt. Seas 18 ft.
.WED...W wind 25 kt. Seas 14 ft.
.THU...W wind 20 kt. Seas 11 ft.
.FRI...S wind 20 kt. Seas 14 ft.

$$

PKZ174-240045-
Nikolski to Seguam Island Pacific Side-
338 AM AKDT Mon Apr 23 2018

...GALE WARNING TONIGHT AND TUESDAY...

.TODAY...SW wind 30 kt. Seas 17 ft.
.TONIGHT...SW wind 35 kt. Seas 22 ft. Widespread rain showers.
.TUE...SW wind 40 kt. Seas 25 ft. Rain showers.
.TUE NIGHT...W wind 35 kt. Seas 24 ft.
.WED...W wind 30 kt. Seas 19 ft.
.THU...W wind 20 kt. Seas 11 ft.
.FRI...SW wind 20 kt. Seas 17 ft.

$$

PKZ175-240045-
Seguam Island to Adak Bering Side-
338 AM AKDT Mon Apr 23 2018

...GALE WARNING TODAY AND TUESDAY...

.TODAY...SW wind 35 kt. Seas 15 ft. Widespread rain showers.
.TONIGHT...SW wind 30 kt. Seas 14 ft. Rain showers.
.TUE...W wind 35 kt. Seas 16 ft. Rain showers.
.TUE NIGHT...W wind 30 kt. Seas 15 ft.
.WED THROUGH THU...W wind 25 kt. Seas 11 to 13 ft.
.FRI...S wind 25 kt. Seas 14 ft.

$$

PKZ176-240045-
Seguam Island to Adak Pacific Side-
338 AM AKDT Mon Apr 23 2018

...GALE WARNING THROUGH TUESDAY...

.TODAY...SW wind 35 kt. Seas 24 ft.
.TONIGHT...SW wind 35 kt. Seas 24 ft. Widespread rain showers.
.TUE...W wind 40 kt. Seas 25 ft. Rain showers.
.TUE NIGHT...W wind 35 kt. Seas 22 ft.
.WED...W wind 25 kt. Seas 17 ft.
.THU...W wind 20 kt. Seas 10 ft.
.FRI...S wind 25 kt. Seas 18 ft.

$$

PKZ177-240045-
Adak to Kiska-
338 AM AKDT Mon Apr 23 2018

...GALE WARNING THROUGH TUESDAY...

.TODAY...SW wind 35 kt becoming NW 25 kt in the afternoon. Seas 18 
ft Bering side...27 ft Pacific side. Widespread rain showers.
.TONIGHT...NW wind 25 kt becoming W 35 kt after midnight. Bering 
side, seas 12 ft building to 18 ft after midnight. Pacific side, seas
21 ft. Rain showers.
.TUE...W wind 35 kt. Seas 21 ft.
.TUE NIGHT...W wind 30 kt. Seas 18 ft.
.WED THROUGH THU...SW wind 25 kt. Seas 12 to 14 ft.
.FRI...SW wind 30 kt. Seas 19 ft.

$$

PKZ178-240045-
Kiska to Attu-
338 AM AKDT Mon Apr 23 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...N wind 25 kt becoming NW wind 35 kt by noon. Seas 19 ft. 
Rain and snow showers.
.TONIGHT...NW wind 35 kt. Seas 18 ft. Snow showers and rain
showers.
.TUE...NW wind 30 kt. Seas 19 ft.
.TUE NIGHT...W wind 25 kt. Seas 16 ft.
.WED...W wind 25 kt. Seas 13 ft.
.THU THROUGH FRI...SW wind 30 kt. Seas 18 to 20 ft.

$$

PKZ179-240045-
Pribilof Islands Near Shore Waters-
338 AM AKDT Mon Apr 23 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SE wind 15 kt becoming SW 25 kt by late morning. 
Seas 10 ft. Rain showers.
.TONIGHT...S wind 20 kt. Seas 11 ft. Widespread rain showers.
.TUE...SW wind 20 kt. Seas 13 ft. Rain showers.
.TUE NIGHT...W wind 15 kt. Seas 11 ft.
.WED THROUGH THU...W wind 20 kt. Seas 10 to 11 ft.
.FRI...S wind 20 kt. Seas 14 ft.

$$

PKZ180-240045-
Kuskokwim Delta and Etolin Strait-
338 AM AKDT Mon Apr 23 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SE wind 30 kt. Seas 9 ft. Snow and rain showers.
.TONIGHT...SE wind 25 kt. Seas 8 ft.
.TUE...S wind 30 kt. Seas 11 ft.
.TUE NIGHT...S wind 30 kt. Seas 14 ft.
.WED...SW wind 30 kt. Seas 14 ft.
.THU...S wind 20 kt. Seas 8 ft.
.FRI...S wind 15 kt. Seas 10 ft.

$$

PKZ181-240045-
North and West of Nunivak Island-
338 AM AKDT Mon Apr 23 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SE wind 30 kt. Seas 10 ft.
.TONIGHT...SE wind 25 kt becoming E 15 kt after midnight. 
Seas 8 ft. Snow showers.
.TUE...S wind 15 kt becoming S 25 kt in the afternoon. Seas 7 ft.
.TUE NIGHT...S wind 25 kt. Seas 7 ft.
.WED THROUGH THU...SW wind 20 kt. Seas 9 ft.
.FRI...S wind 15 kt. Seas 10 ft.

$$

PKZ185-240045-
Saint Matthew Island Waters-
338 AM AKDT Mon Apr 23 2018

...GALE WARNING TODAY...

.TODAY...E wind 30 kt E of Saint Matthew Island...NE 40 kt decreasing
to 30 kt by noon W of Saint Matthew Island. Seas 17 ft. Rain showers.
.TONIGHT...E wind 25 kt E of Saint Matthew Island...NE 30 kt W of
Saint Matthew Island. Seas 13 ft. Snow and rain showers.
.TUE...E of Saint Matthew Island, NE wind 20 kt becoming NW in the
afternoon. W of Saint Matthew Island, NE wind 30 kt. Seas 10 ft.
.TUE NIGHT...NW wind 30 kt. Seas 13 ft.
.WED...W wind 25 kt. Seas 12 ft.
.THU...W wind 20 kt. Seas 9 ft.
.FRI...S wind 25 kt. Seas 15 ft.

$$

587 
FZAK52 PAFC 232358
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
358 PM AKDT Mon Apr 23 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.

PKZ199-241230-
358 PM AKDT Mon Apr 23 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 968 mb low 130 nm northwest of Adak moves 60 nm north of Saint
Paul at 975 mb Tue afternoon and then dissipates Tue night. A 
second 974 mb low forms 90 nm west of Platinum tonight and moves 
100 nm northwest of Hooper Bay at 968 mb Tue afternoon. The low 
then moves into the Gulf of Anadyr at 981 mb Wed afternoon.

$$

PKZ150-241230-
South of the AK Peninsula Sitkinak to Castle Cape-
358 PM AKDT Mon Apr 23 2018

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...S wind 40 kt. Seas 13 ft building to 18 ft after
midnight. Rain.
.TUE...SW wind 40 kt diminishing to 30 kt in the afternoon. Seas
19 ft.
.TUE NIGHT...SW wind 30 kt. Seas 17 ft.
.WED...SW wind 30 kt. Seas 17 ft.
.WED NIGHT...SW wind 25 kt. Seas 15 ft.
.THU...SW wind 20 kt. Seas 13 ft.
.FRI THROUGH SAT...Variable wind 10 kt. Seas 8 ft.

$$

PKZ155-241230-
South of the AK Peninsula Castle Cape to Cape Sarichef-
358 PM AKDT Mon Apr 23 2018

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...S wind 30 kt except 40 kt from the Shumagin Islands E. 
Seas 16 ft. Rain.
.TUE...SW wind 35 kt. Seas 20 ft.
.TUE NIGHT...SW wind 40 kt except SW 35 kt from the Shumagin
Islands E. Seas 21 ft.
.WED...SW wind 35 kt. Seas 21 ft.
.WED NIGHT...SW wind 25 kt. Seas 16 ft.
.THU...SW wind 20 kt. Seas 13 ft.
.FRI...Variable wind 10 kt. Seas 11 ft.
.SAT...SW wind 15 kt. Seas 11 ft.

$$

PKZ160-241230-
Bristol Bay-
358 PM AKDT Mon Apr 23 2018

...GALE WARNING TONIGHT...

.TONIGHT...SE wind 35 kt. Seas 7 ft. Rain.
.TUE...SW wind 30 kt. Seas 8 ft. Rain.
.TUE NIGHT...S wind 30 kt. Seas 10 ft.
.WED...S wind 30 kt. Seas 10 ft.
.WED NIGHT...SW wind 20 kt. Seas 7 ft.
.THU...S wind 25 kt. Seas 6 ft.
.FRI THROUGH SAT...S wind 10 kt. Seas 6 ft.

$$

PKZ165-241230-
Port Heiden to Cape Sarichef-
358 PM AKDT Mon Apr 23 2018

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...SE wind 25 kt. Seas 7 ft.
.TUE...SW wind 30 kt. Seas 13 ft.
.TUE NIGHT...S wind 40 kt. Seas 16 ft.
.WED...SW wind 30 kt. Seas 14 ft.
.WED NIGHT...SW wind 25 kt. Seas 10 ft.
.THU...SW wind 30 kt. Seas 10 ft.
.FRI THROUGH SAT...S wind 15 kt. Seas 11 ft.

$$

PKZ170-241230-
Cape Sarichef to Nikolski Bering Side-
358 PM AKDT Mon Apr 23 2018

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

.TONIGHT...SW wind 30 kt. Seas 13 ft.
.TUE...SW wind 40 kt. Seas 15 ft.
.TUE NIGHT...SW wind 40 kt. Seas 17 ft.
.WED...W wind 30 kt. Seas 12 ft.
.WED NIGHT...W wind 25 kt. Seas 10 ft.
.THU...W wind 30 kt. Seas 11 ft.
.FRI THROUGH SAT...S wind 20 kt. Seas 12 ft.

$$

PKZ171-241230-
Unalaska Bay-
358 PM AKDT Mon Apr 23 2018

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...SW wind 15 kt increasing to 25 kt after midnight. Seas
2 ft building to 4 ft after midnight.
.TUE...SW wind 30 kt. Seas 5 ft.
.TUE NIGHT...SW wind 35 kt diminishing to 25 kt after midnight.
Seas 5 ft.
.WED...SW wind 20 kt. Seas 3 ft.
.WED NIGHT...W wind 15 kt. Seas 2 ft.
.THU...W wind 15 kt. Seas 2 ft.
.FRI...SW wind 10 kt. Seas 2 ft.
.SAT...S wind 15 kt. Seas 2 ft.

$$

PKZ172-241230-
Cape Sarichef to Nikolski Pacific Side-
358 PM AKDT Mon Apr 23 2018

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...SW wind 25 kt increasing to 35 kt after midnight. Seas
12 ft building to 17 ft after midnight. Snow showers and rain
showers.
.TUE...SW wind 40 kt. Seas 22 ft.
.TUE NIGHT...SW wind 40 kt. Seas 24 ft.
.WED...SW wind 30 kt. Seas 20 ft.
.WED NIGHT...W wind 25 kt. Seas 15 ft.
.THU...W wind 25 kt. Seas 12 ft.
.FRI THROUGH SAT...S wind 20 kt. Seas 13 ft.

$$

PKZ173-241230-
Nikolski to Seguam Island Bering Side-
358 PM AKDT Mon Apr 23 2018

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...S wind 35 kt. Seas 14 ft. Snow showers and rain
showers.
.TUE...SW wind 30 kt increasing to 40 kt in the afternoon. Seas
17 ft.
.TUE NIGHT...W wind 40 kt diminishing to 30 kt after midnight.
Seas 18 ft.
.WED...W wind 30 kt. Seas 14 ft.
.WED NIGHT...W wind 25 kt. Seas 10 ft.
.THU...W wind 30 kt. Seas 11 ft.
.FRI THROUGH SAT...S wind 20 kt. Seas 12 ft.

$$

PKZ174-241230-
Nikolski to Seguam Island Pacific Side-
358 PM AKDT Mon Apr 23 2018

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...SW wind 40 kt. Seas 21 ft. Snow showers and rain
showers.
.TUE...SW wind 40 kt. Seas 24 ft.
.TUE NIGHT...SW wind 40 kt becoming W 30 kt after midnight. 
Seas 24 ft.
.WED...W wind 30 kt. Seas 18 ft.
.WED NIGHT...W wind 25 kt. Seas 13 ft.
.THU...W wind 25 kt. Seas 11 ft.
.FRI THROUGH SAT...S wind 20 kt. Seas 15 ft.

$$

PKZ175-241230-
Seguam Island to Adak Bering Side-
358 PM AKDT Mon Apr 23 2018

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...SW wind 35 kt. Seas 13 ft. Snow showers and rain
showers.
.TUE...SW wind 40 kt. Seas 14 ft. Rain showers and snow showers.
.TUE NIGHT...W wind 30 kt. Seas 14 ft.
.WED...W wind 30 kt. Seas 12 ft.
.WED NIGHT...W wind 25 kt. Seas 10 ft.
.THU...SW wind 30 kt. Seas 11 ft.
.FRI...S wind 25 kt. Seas 13 ft.
.SAT...SW wind 15 kt. Seas 9 ft.

$$

PKZ176-241230-
Seguam Island to Adak Pacific Side-
358 PM AKDT Mon Apr 23 2018

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...SW wind 40 kt. Seas 22 ft. Snow showers and rain
showers.
.TUE...W wind 45 kt. Seas 24 ft.
.TUE NIGHT...W wind 35 kt. Seas 22 ft.
.WED...W wind 25 kt. Seas 16 ft.
.WED NIGHT...W wind 25 kt. Seas 12 ft.
.THU...W wind 25 kt. Seas 10 ft.
.FRI...S wind 25 kt. Seas 17 ft.
.SAT...SW wind 20 kt. Seas 13 ft.

$$

PKZ177-241230-
Adak to Kiska-
358 PM AKDT Mon Apr 23 2018

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...W wind 30 kt increasing to 40 kt after midnight. Seas
15 ft Bering side...19 ft Pacific side. Snow showers and rain
showers.
.TUE...W wind 40 kt. Seas 20 ft.
.TUE NIGHT...W wind 30 kt. Seas 16 ft.
.WED...W wind 25 kt. Seas 13 ft.
.WED NIGHT...W wind 30 kt. Seas 11 ft.
.THU THROUGH FRI...SW wind 30 kt. Seas 17 ft.
.SAT...SW wind 20 kt. Seas 13 ft.

$$

PKZ178-241230-
Kiska to Attu-
358 PM AKDT Mon Apr 23 2018

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...NW wind 40 kt. Seas 18 ft. Snow showers.
.TUE...NW wind 35 kt. Seas 19 ft.
.TUE NIGHT...NW wind 30 kt. Seas 14 ft.
.WED...W wind 25 kt. Seas 12 ft.
.WED NIGHT...SW wind 30 kt. Seas 11 ft.
.THU...S wind 40 kt. Seas 18 ft.
.FRI...SW wind 30 kt. Seas 18 ft.
.SAT...SW wind 25 kt. Seas 18 ft.

$$

PKZ179-241230-
Pribilof Islands Near Shore Waters-
358 PM AKDT Mon Apr 23 2018

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

.TONIGHT...S wind 20 kt. Seas 11 ft. Snow showers.
.TUE...S wind 30 kt. Seas 13 ft.
.TUE NIGHT...SW wind 15 kt becoming W 25 kt after midnight. 
Seas 10 ft.
.WED...W wind 20 kt. Seas 9 ft.
.WED NIGHT...W wind 25 kt. Seas 9 ft.
.THU...W wind 30 kt. Seas 13 ft.
.FRI THROUGH SAT...S wind 20 kt. Seas 13 ft.

$$

PKZ180-241230-
Kuskokwim Delta and Etolin Strait-
358 PM AKDT Mon Apr 23 2018

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...SE wind 25 kt. Seas 7 ft. Widespread rain showers.
.TUE...S wind 30 kt. Seas 10 ft.
.TUE NIGHT...S wind 35 kt. Seas 13 ft.
.WED...SW wind 30 kt. Seas 13 ft.
.WED NIGHT...SW wind 20 kt. Seas 8 ft.
.THU...SW wind 25 kt. Seas 8 ft.
.FRI THROUGH SAT...S wind 15 kt. Seas 9 ft.

$$

PKZ181-241230-
North and West of Nunivak Island-
358 PM AKDT Mon Apr 23 2018

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

.TONIGHT...SE wind 25 kt. Seas 7 ft.
.TUE...N wind 20 kt becoming S in the afternoon. Seas 6 ft.
.TUE NIGHT...S wind 30 kt. Seas 7 ft.
.WED AND WED NIGHT...SW wind 25 kt. Seas 9 ft.
.THU...SW wind 25 kt. Seas 9 ft.
.FRI THROUGH SAT...S wind 20 kt. Seas 10 ft.

$$

PKZ185-241230-
Saint Matthew Island Waters-
358 PM AKDT Mon Apr 23 2018

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

.TONIGHT...E of Saint Matthew Island, E wind 30 kt diminishing to
20 kt after midnight. W of Saint Matthew Island, NE wind 30 kt.
Seas 13 ft.
.TUE...N wind 20 kt E of Saint Matthew Island...NE 30 kt W of
Saint Matthew Island. Seas 10 ft.
.TUE NIGHT...NW wind 30 kt. Seas 11 ft.
.WED AND WED NIGHT...W wind 30 kt. Seas 12 ft.
.THU...SW wind 30 kt. Seas 11 ft.
.FRI...S wind 25 kt. Seas 15 ft.
.SAT...S wind 20 kt. Seas 21 ft.

$$

181 
FZAK52 PAFC 241148
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
348 AM AKDT Tue Apr 24 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.

PKZ199-250100-
348 AM AKDT Tue Apr 24 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 971 mb low 220 nm north of Atka moves to 75 nm south of Mekoryuk 
at 985 mb dissipating Wed morning. A 976 mb low 70 nm southwest of 
Kipnuk moves over St Matthew Island at 970 mb Tue evening then shifts
to 75 nm North of Gambell at 990 mb for Thu morning. A front over 
the Alaska Peninsula moves into the Western Gulf of Alaska by Wed 
morning.

$$

PKZ150-250100-
South of the AK Peninsula Sitkinak to Castle Cape-
348 AM AKDT Tue Apr 24 2018

...GALE WARNING TODAY...

.TODAY...SW wind 35 kt. Seas 20 ft.
.TONIGHT...SW wind 30 kt. Seas 18 ft.
.WED...SW wind 30 kt. Seas 18 ft. Rain showers.
.WED NIGHT...SW wind 25 kt. Seas 15 ft.
.THU...SW wind 20 kt. Seas 13 ft.
.FRI THROUGH SAT...SW wind 20 kt. Seas 10 to 12 ft.

$$

PKZ155-250100-
South of the AK Peninsula Castle Cape to Cape Sarichef-
348 AM AKDT Tue Apr 24 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 35 kt. Seas 21 ft. Rain and snow showers.
.TONIGHT...SW wind 35 kt. Seas 21 ft. Rain showers.
.WED...SW wind 30 kt. Seas 21 ft. Rain showers.
.WED NIGHT...SW wind 25 kt. Seas 16 ft.
.THU...SW wind 20 kt. Seas 12 ft.
.FRI THROUGH SAT...SW wind 25 kt. Seas 13 ft.

$$

PKZ160-250100-
Bristol Bay-
348 AM AKDT Tue Apr 24 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SW wind 30 kt. Seas 9 ft. Rain.
.TONIGHT...S wind 30 kt. Seas 11 ft.
.WED...S wind 30 kt. Seas 11 ft.
.WED NIGHT...S wind 20 kt. Seas 8 ft.
.THU...SW wind 25 kt. Seas 7 ft.
.FRI...SW wind 20 kt. Seas 7 ft.
.SAT...S wind 15 kt. Seas 7 ft.

$$

PKZ165-250100-
Port Heiden to Cape Sarichef-
348 AM AKDT Tue Apr 24 2018

...GALE WARNING TONIGHT...

.TODAY...SW wind 30 kt. Seas 14 ft.
.TONIGHT...S wind 40 kt. Seas 17 ft.
.WED...SW wind 30 kt. Seas 14 ft.
.WED NIGHT...SW wind 25 kt. Seas 10 ft.
.THU THROUGH FRI...SW wind 25 kt. Seas 11 to 13 ft.
.SAT...S wind 20 kt. Seas 12 ft.

$$

PKZ170-250100-
Cape Sarichef to Nikolski Bering Side-
348 AM AKDT Tue Apr 24 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 30 kt increasing to 40 kt in the afternoon. 
Seas 16 ft. Rain showers and snow showers.
.TONIGHT...SW wind 40 kt diminishing to 30 kt after midnight. 
Seas 17 ft. Rain showers.
.WED...SW wind 30 kt. Seas 13 ft. Rain showers.
.WED NIGHT...W wind 20 kt. Seas 10 ft.
.THU...SW wind 25 kt. Seas 10 ft.
.FRI THROUGH SAT...S wind 25 kt. Seas 12 to 14 ft.

$$

PKZ171-250100-
Unalaska Bay-
348 AM AKDT Tue Apr 24 2018

...GALE WARNING TONIGHT...

.TODAY...SW wind increasing to 30 kt. Gusts up to 40 kt increasing 
to 50 kt in the afternoon. Seas 5 ft. Rain showers.
.TONIGHT...SW wind 35 kt diminishing to 25 kt by midnight. 
Seas 5 ft. Rain showers.
.WED...SW wind 20 kt. Seas 3 ft. Rain showers.
.WED NIGHT...W wind 20 kt. Seas 3 ft.
.THU...SW wind 15 kt. Seas 2 ft.
.FRI...SW wind 20 kt. Seas 3 ft.
.SAT...S wind 15 kt. Seas 2 ft.

$$

PKZ172-250100-
Cape Sarichef to Nikolski Pacific Side-
348 AM AKDT Tue Apr 24 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 40 kt. Seas 22 ft. Rain showers and snow showers.
.TONIGHT...SW wind 40 kt. Seas 23 ft. Rain showers.
.WED...SW wind 30 kt. Seas 20 ft.
.WED NIGHT...W wind 25 kt. Seas 15 ft.
.THU...W wind 20 kt. Seas 11 ft.
.FRI THROUGH SAT...SW wind 25 kt. Seas 14 to 15 ft.

$$

PKZ173-250100-
Nikolski to Seguam Island Bering Side-
348 AM AKDT Tue Apr 24 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 30 kt increasing to 40 kt in the afternoon. 
Seas 16 ft. Rain showers.
.TONIGHT...W wind 35 kt decreasing to 30 kt by midnight. Seas 18 ft.
Rain showers.
.WED...W wind 30 kt. Seas 14 ft.  and snow showers.
.WED NIGHT...W wind 25 kt. Seas 11 ft.
.THU THROUGH FRI...SW wind 30 kt. Seas 12 to 14 ft.
.SAT...SW wind 20 kt. Seas 11 ft.

$$

PKZ174-250100-
Nikolski to Seguam Island Pacific Side-
348 AM AKDT Tue Apr 24 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 40 kt. Seas 23 ft. Rain showers and snow showers.
.TONIGHT...SW wind 40 kt becoming W 30 kt after midnight. 
Seas 23 ft. Rain showers.
.WED...W wind 25 kt. Seas 18 ft.
.WED NIGHT...W wind 25 kt. Seas 13 ft.
.THU...SW wind 25 kt. Seas 10 ft.
.FRI...SW wind 30 kt. Seas 17 ft.
.SAT...SW wind 25 kt. Seas 15 ft.

$$

PKZ175-250100-
Seguam Island to Adak Bering Side-
348 AM AKDT Tue Apr 24 2018

...GALE WARNING TODAY...

.TODAY...SW wind 35 kt. Seas 15 ft. Rain showers and snow showers.
.TONIGHT...W wind 30 kt. Seas 14 ft. Rain showers.
.WED...W wind 25 kt. Seas 12 ft.
.WED NIGHT...W wind 25 kt. Seas 10 ft.
.THU THROUGH FRI...SW wind 35 kt. Seas 13 to 15 ft.
.SAT...SW wind 20 kt. Seas 9 ft.

$$

PKZ176-250100-
Seguam Island to Adak Pacific Side-
348 AM AKDT Tue Apr 24 2018

...GALE WARNING TODAY...

.TODAY...W wind 45 kt. Seas 23 ft. Rain showers and snow showers.
.TONIGHT...W wind 30 kt. Seas 22 ft.
.WED...W wind 25 kt. Seas 16 ft.
.WED NIGHT...W wind 25 kt. Seas 12 ft.
.THU...SW wind 35 kt. Seas 12 ft.
.FRI...SW wind 35 kt. Seas 18 ft.
.SAT...SW wind 20 kt. Seas 14 ft.

$$

PKZ177-250100-
Adak to Kiska-
348 AM AKDT Tue Apr 24 2018

...GALE WARNING TODAY...

.TODAY...W wind 40 kt. Seas 21 ft. Rain showers and snow showers.
.TONIGHT...W wind 30 kt. Seas 18 ft.
.WED...W wind 25 kt. Seas 14 ft.
.WED NIGHT...W wind 25 kt. Seas 11 ft.
.THU THROUGH FRI...SW wind 40 kt. Seas 18 to 19 ft.
.SAT...SW wind 20 kt. Seas 14 ft.

$$

PKZ178-250100-
Kiska to Attu-
348 AM AKDT Tue Apr 24 2018

...GALE WARNING TODAY...

.TODAY...NW wind 35 kt decreasing to 25 kt in the afternoon. 
Seas 18 ft.
.TONIGHT...NW wind 25 kt. Seas 16 ft.
.WED...W wind 25 kt. Seas 12 ft.
.WED NIGHT...SW wind 30 kt. Seas 12 ft.
.THU...S wind 40 kt. Seas 19 ft.
.FRI...SW wind 35 kt. Seas 19 ft.
.SAT...SW wind 30 kt. Seas 21 ft.

$$

PKZ179-250100-
Pribilof Islands Near Shore Waters-
348 AM AKDT Tue Apr 24 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...S wind 15 kt increasing to 30 kt in the afternoon. 
Seas 13 ft.
.TONIGHT...SW wind 15 kt becoming W 25 kt after midnight. 
Seas 11 ft.
.WED...W wind 20 kt. Seas 11 ft.
.WED NIGHT...W wind 20 kt. Seas 9 ft.
.THU THROUGH FRI...SW wind 25 kt. Seas 12 to 14 ft.
.SAT...SW wind 20 kt. Seas 13 ft.

$$

PKZ180-250100-
Kuskokwim Delta and Etolin Strait-
348 AM AKDT Tue Apr 24 2018

...GALE WARNING TONIGHT...

.TODAY...SW wind 20 kt becoming S 30 kt in the afternoon. 
Seas 11 ft.
.TONIGHT...S wind 35 kt. Seas 14 ft.
.WED...SW wind 30 kt diminishing to 20 kt in the afternoon. 
Seas 14 ft.
.WED NIGHT...SW wind 20 kt. Seas 9 ft.
.THU THROUGH FRI...S wind 25 kt. Seas 9 to 11 ft.
.SAT...S wind 20 kt. Seas 11 ft.

$$

PKZ181-250100-
North and West of Nunivak Island-
348 AM AKDT Tue Apr 24 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...N wind 20 kt becoming S 25 kt in the afternoon. Seas 8 ft.
.TONIGHT...S wind 25 kt. Seas 10 ft.
.WED...SW wind 25 kt. Seas 9 ft.
.WED NIGHT...SW wind 25 kt. Seas 9 ft.
.THU...SW wind 20 kt. Seas 9 ft.
.FRI THROUGH SAT...S wind 25 kt. Seas 11 to 12 ft.

$$

PKZ185-250100-
Saint Matthew Island Waters-
348 AM AKDT Tue Apr 24 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...N wind 20 kt E of Saint Matthew Island...NE 30 kt W of
Saint Matthew Island. Seas 10 ft.
.TONIGHT...NW wind 25 kt. Seas 11 ft.
.WED...W wind 30 kt. Seas 12 ft.
.WED NIGHT...W wind 25 kt. Seas 11 ft.
.THU...SW wind 25 kt. Seas 11 ft.
.FRI THROUGH SAT...SW wind 25 kt. Seas 15 to 17 ft.

$$

904 
FZAK52 PAFC 241439 AAA
CWFALU

Coastal Waters Forecast...UPDATED
National Weather Service Anchorage AK
639 AM AKDT Tue Apr 24 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.

PKZ199-250315-
639 AM AKDT Tue Apr 24 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 971 mb low 220 nm north of Atka moves to 75 nm south of Mekoryuk 
at 985 mb dissipating Wed morning. A 976 mb low 70 nm southwest of 
Kipnuk moves over St Matthew Island at 970 mb Tue evening then shifts
to 75 nm North of Gambell at 990 mb for Thu morning. A front over 
the Alaska Peninsula moves into the Western Gulf of Alaska by Wed 
morning.

$$

PKZ150-250315-
South of the AK Peninsula Sitkinak to Castle Cape-
639 AM AKDT Tue Apr 24 2018

...GALE WARNING TODAY...

.TODAY...SE wind 35 kt becoming SW 35 kt by late morning. 
Seas 20 ft.
.TONIGHT...SW wind 30 kt. Seas 18 ft. 
.WED...SW wind 30 kt. Seas 18 ft. Rain showers. 
.WED NIGHT...SW wind 25 kt. Seas 15 ft. 
.THU...SW wind 20 kt. Seas 13 ft. 
.FRI THROUGH SAT...SW wind 20 kt. Seas 10 to 12 ft.

$$

PKZ155-250315-
South of the AK Peninsula Castle Cape to Cape Sarichef-
639 AM AKDT Tue Apr 24 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 35 kt. Seas 21 ft. Rain and snow showers. 
.TONIGHT...SW wind 35 kt. Seas 21 ft. Rain showers. 
.WED...SW wind 30 kt. Seas 21 ft. Rain showers. 
.WED NIGHT...SW wind 25 kt. Seas 16 ft. 
.THU...SW wind 20 kt. Seas 12 ft. 
.FRI THROUGH SAT...SW wind 25 kt. Seas 13 ft.

$$

PKZ160-250315-
Bristol Bay-
639 AM AKDT Tue Apr 24 2018

...GALE WARNING TODAY...

.TODAY...SE wind 35 kt becoming SW 30 kt by late morning. 
Seas 9 ft. Rain.
.TONIGHT...S wind 30 kt. Seas 11 ft. 
.WED...S wind 30 kt. Seas 11 ft. 
.WED NIGHT...S wind 20 kt. Seas 8 ft. 
.THU...SW wind 25 kt. Seas 7 ft. 
.FRI...SW wind 20 kt. Seas 7 ft. 
.SAT...S wind 15 kt. Seas 7 ft.

$$

PKZ165-250315-
Port Heiden to Cape Sarichef-
639 AM AKDT Tue Apr 24 2018

...GALE WARNING TONIGHT...

.TODAY...SW wind 30 kt. Seas 14 ft. 
.TONIGHT...S wind 40 kt. Seas 17 ft. 
.WED...SW wind 30 kt. Seas 14 ft. 
.WED NIGHT...SW wind 25 kt. Seas 10 ft. 
.THU THROUGH FRI...SW wind 25 kt. Seas 11 to 13 ft. 
.SAT...S wind 20 kt. Seas 12 ft.

$$

PKZ170-250315-
Cape Sarichef to Nikolski Bering Side-
639 AM AKDT Tue Apr 24 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 30 kt increasing to 40 kt in the afternoon. 
Seas 16 ft. Rain showers and snow showers. 
.TONIGHT...SW wind 40 kt diminishing to 30 kt after midnight. 
Seas 17 ft. Rain showers. 
.WED...SW wind 30 kt. Seas 13 ft. Rain showers. 
.WED NIGHT...W wind 20 kt. Seas 10 ft. 
.THU...SW wind 25 kt. Seas 10 ft. 
.FRI THROUGH SAT...S wind 25 kt. Seas 12 to 14 ft.

$$

PKZ171-250315-
Unalaska Bay-
639 AM AKDT Tue Apr 24 2018

...GALE WARNING TONIGHT...

.TODAY...SW wind increasing to 30 kt. Gusts up to 40 kt
increasing  to 50 kt in the afternoon. Seas 5 ft. Rain showers. 
.TONIGHT...SW wind 35 kt diminishing to 25 kt by midnight.  
Seas 5 ft. Rain showers. 
.WED...SW wind 20 kt. Seas 3 ft. Rain showers. 
.WED NIGHT...W wind 20 kt. Seas 3 ft. 
.THU...SW wind 15 kt. Seas 2 ft. 
.FRI...SW wind 20 kt. Seas 3 ft. 
.SAT...S wind 15 kt. Seas 2 ft.

$$

PKZ172-250315-
Cape Sarichef to Nikolski Pacific Side-
639 AM AKDT Tue Apr 24 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 40 kt. Seas 22 ft. Rain showers and snow
showers. 
.TONIGHT...SW wind 40 kt. Seas 23 ft. Rain showers. 
.WED...SW wind 30 kt. Seas 20 ft. 
.WED NIGHT...W wind 25 kt. Seas 15 ft. 
.THU...W wind 20 kt. Seas 11 ft. 
.FRI THROUGH SAT...SW wind 25 kt. Seas 14 to 15 ft.

$$

PKZ173-250315-
Nikolski to Seguam Island Bering Side-
639 AM AKDT Tue Apr 24 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 30 kt increasing to 40 kt in the afternoon. 
Seas 16 ft. Rain showers. 
.TONIGHT...W wind 35 kt decreasing to 30 kt by midnight. Seas
18 ft. Rain showers. 
.WED...W wind 30 kt. Seas 14 ft.  and snow showers. 
.WED NIGHT...W wind 25 kt. Seas 11 ft. 
.THU THROUGH FRI...SW wind 30 kt. Seas 12 to 14 ft. 
.SAT...SW wind 20 kt. Seas 11 ft.

$$

PKZ174-250315-
Nikolski to Seguam Island Pacific Side-
639 AM AKDT Tue Apr 24 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 40 kt. Seas 23 ft. Rain showers and snow
showers. 
.TONIGHT...SW wind 40 kt becoming W 30 kt after midnight.  
Seas 23 ft. Rain showers. 
.WED...W wind 25 kt. Seas 18 ft. 
.WED NIGHT...W wind 25 kt. Seas 13 ft. 
.THU...SW wind 25 kt. Seas 10 ft. 
.FRI...SW wind 30 kt. Seas 17 ft. 
.SAT...SW wind 25 kt. Seas 15 ft.

$$

PKZ175-250315-
Seguam Island to Adak Bering Side-
639 AM AKDT Tue Apr 24 2018

...GALE WARNING TODAY...

.TODAY...SW wind 35 kt. Seas 15 ft. Rain showers and snow
showers. 
.TONIGHT...W wind 30 kt. Seas 14 ft. Rain showers. 
.WED...W wind 25 kt. Seas 12 ft. 
.WED NIGHT...W wind 25 kt. Seas 10 ft. 
.THU THROUGH FRI...SW wind 35 kt. Seas 13 to 15 ft. 
.SAT...SW wind 20 kt. Seas 9 ft.

$$

PKZ176-250315-
Seguam Island to Adak Pacific Side-
639 AM AKDT Tue Apr 24 2018

...GALE WARNING TODAY...

.TODAY...W wind 45 kt. Seas 23 ft. Rain showers and snow showers.
.TONIGHT...W wind 30 kt. Seas 22 ft. 
.WED...W wind 25 kt. Seas 16 ft. 
.WED NIGHT...W wind 25 kt. Seas 12 ft. 
.THU...SW wind 35 kt. Seas 12 ft. 
.FRI...SW wind 35 kt. Seas 18 ft. 
.SAT...SW wind 20 kt. Seas 14 ft.

$$

PKZ177-250315-
Adak to Kiska-
639 AM AKDT Tue Apr 24 2018

...GALE WARNING TODAY...

.TODAY...W wind 40 kt. Seas 21 ft. Rain showers and snow showers.
.TONIGHT...W wind 30 kt. Seas 18 ft. 
.WED...W wind 25 kt. Seas 14 ft. 
.WED NIGHT...W wind 25 kt. Seas 11 ft. 
.THU THROUGH FRI...SW wind 40 kt. Seas 18 to 19 ft. 
.SAT...SW wind 20 kt. Seas 14 ft.

$$

PKZ178-250315-
Kiska to Attu-
639 AM AKDT Tue Apr 24 2018

...GALE WARNING TODAY...

.TODAY...NW wind 35 kt decreasing to 25 kt in the afternoon. 
Seas 18 ft. 
.TONIGHT...NW wind 25 kt. Seas 16 ft. 
.WED...W wind 25 kt. Seas 12 ft. 
.WED NIGHT...SW wind 30 kt. Seas 12 ft. 
.THU...S wind 40 kt. Seas 19 ft. 
.FRI...SW wind 35 kt. Seas 19 ft. 
.SAT...SW wind 30 kt. Seas 21 ft.

$$

PKZ179-250315-
Pribilof Islands Near Shore Waters-
639 AM AKDT Tue Apr 24 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...S wind 15 kt increasing to 30 kt in the afternoon.  
Seas 13 ft. 
.TONIGHT...SW wind 15 kt becoming W 25 kt after midnight.  
Seas 11 ft. 
.WED...W wind 20 kt. Seas 11 ft. 
.WED NIGHT...W wind 20 kt. Seas 9 ft. 
.THU THROUGH FRI...SW wind 25 kt. Seas 12 to 14 ft. 
.SAT...SW wind 20 kt. Seas 13 ft.

$$

PKZ180-250315-
Kuskokwim Delta and Etolin Strait-
639 AM AKDT Tue Apr 24 2018

...GALE WARNING TONIGHT...

.TODAY...SW wind 20 kt becoming S 30 kt in the afternoon.  
Seas 11 ft. 
.TONIGHT...S wind 35 kt. Seas 14 ft. 
.WED...SW wind 30 kt diminishing to 20 kt in the afternoon.  
Seas 14 ft. 
.WED NIGHT...SW wind 20 kt. Seas 9 ft. 
.THU THROUGH FRI...S wind 25 kt. Seas 9 to 11 ft. 
.SAT...S wind 20 kt. Seas 11 ft.

$$

PKZ181-250315-
North and West of Nunivak Island-
639 AM AKDT Tue Apr 24 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...N wind 20 kt becoming S 25 kt in the afternoon. 
Seas 8 ft. 
.TONIGHT...S wind 25 kt. Seas 10 ft. 
.WED...SW wind 25 kt. Seas 9 ft. 
.WED NIGHT...SW wind 25 kt. Seas 9 ft. 
.THU...SW wind 20 kt. Seas 9 ft. 
.FRI THROUGH SAT...S wind 25 kt. Seas 11 to 12 ft.

$$

PKZ185-250315-
Saint Matthew Island Waters-
639 AM AKDT Tue Apr 24 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...N wind 20 kt E of Saint Matthew Island...NE 30 kt 
W of Saint Matthew Island. Seas 10 ft. 
.TONIGHT...NW wind 25 kt. Seas 11 ft. 
.WED...W wind 30 kt. Seas 12 ft. 
.WED NIGHT...W wind 25 kt. Seas 11 ft. 
.THU...SW wind 25 kt. Seas 11 ft. 
.FRI THROUGH SAT...SW wind 25 kt. Seas 15 to 17 ft.

$$

675 
FZAK52 PAFC 242351
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
351 PM AKDT Tue Apr 24 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.

PKZ199-251300-
351 PM AKDT Tue Apr 24 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 970 mb low 160 nm NW of Mekoryuk moves to 43 nm northwest of 
Gambell at 981 mb by Wednesday afternoon. It weakens to 994 mb 
and moves to 136 nm north of Gambell by Thursday afternoon. A 
front associated with this low extends southward across the Bering
Sea this afternoon, then moves across the Bering and onshore by 
Wednesday afternoon.

$$

PKZ150-251300-
South of the AK Peninsula Sitkinak to Castle Cape-
351 PM AKDT Tue Apr 24 2018

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

.TONIGHT...SW wind 30 kt. Seas 18 ft.
.WED...SW wind 30 kt. Seas 16 ft. Rain showers.
.WED NIGHT...SW wind 25 kt. Seas 14 ft. Rain showers.
.THU...SW wind 20 kt. Seas 12 ft.
.THU NIGHT...SW wind 25 kt. Seas 9 ft.
.FRI...SW wind 30 kt. Seas 11 ft.
.SAT...SW wind 20 kt. Seas 11 ft.
.SUN...SW wind 15 kt. Seas 11 ft.

$$

PKZ155-251300-
South of the AK Peninsula Castle Cape to Cape Sarichef-
351 PM AKDT Tue Apr 24 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 35 kt. Seas 20 ft. Rain showers and snow
showers.
.WED...SW wind 30 kt. Seas 20 ft. Rain showers and snow showers.
.WED NIGHT...SW wind 25 kt. Seas 16 ft.
.THU...SW wind 20 kt. Seas 11 ft.
.THU NIGHT...SW wind 30 kt. Seas 9 ft.
.FRI...SW wind 35 kt. Seas 13 ft.
.SAT...SW wind 25 kt. Seas 13 ft.
.SUN...S wind 20 kt. Seas 13 ft.

$$

PKZ160-251300-
Bristol Bay-
351 PM AKDT Tue Apr 24 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...S wind 30 kt. Seas 9 ft.
.WED...S wind 30 kt. Seas 10 ft.
.WED NIGHT...S wind 20 kt. Seas 7 ft.
.THU...SW wind 20 kt. Seas 7 ft.
.THU NIGHT...S wind 30 kt. Seas 8 ft.
.FRI...SW wind 20 kt. Seas 7 ft.
.SAT THROUGH SUN...S wind 15 kt. Seas 8 ft.

$$

PKZ165-251300-
Port Heiden to Cape Sarichef-
351 PM AKDT Tue Apr 24 2018

...GALE WARNING TONIGHT...

.TONIGHT...S wind 40 kt. Seas 15 ft.
.WED...SW wind 30 kt. Seas 14 ft.
.WED NIGHT...SW wind 25 kt. Seas 10 ft.
.THU...SW wind 25 kt. Seas 8 ft.
.THU NIGHT...SW wind 30 kt. Seas 12 ft.
.FRI...SW wind 35 kt. Seas 12 ft.
.SAT...S wind 25 kt. Seas 12 ft.
.SUN...S wind 20 kt. Seas 12 ft.

$$

PKZ170-251300-
Cape Sarichef to Nikolski Bering Side-
351 PM AKDT Tue Apr 24 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 40 kt. Seas 15 ft. Rain showers and snow
showers.
.WED...SW wind 30 kt. Seas 12 ft. Rain showers and snow showers.
.WED NIGHT...W wind 25 kt. Seas 10 ft.
.THU AND THU NIGHT...SW wind 30 kt. Seas 10 ft.
.FRI...S wind 40 kt. Seas 14 ft.
.SAT...S wind 25 kt. Seas 12 ft.
.SUN...S wind 20 kt. Seas 12 ft.

$$

PKZ171-251300-
Unalaska Bay-
351 PM AKDT Tue Apr 24 2018

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SW wind 30 kt diminishing to 20 kt after midnight. Seas
5 ft subsiding to 3 ft after midnight. Rain showers.
.WED...SW wind 20 kt. Seas 3 ft. Rain showers and snow showers.
.WED NIGHT...W wind 15 kt. Seas 2 ft.
.THU...SW wind 10 kt. Seas 2 ft.
.THU NIGHT...SW wind 15 kt. Seas 2 ft.
.FRI...S wind 25 kt. Seas 4 ft.
.SAT THROUGH SUN...S wind 15 kt. Seas 2 ft.

$$

PKZ172-251300-
Cape Sarichef to Nikolski Pacific Side-
351 PM AKDT Tue Apr 24 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 40 kt. Seas 22 ft. Rain showers and snow
showers.
.WED...SW wind 30 kt. Seas 20 ft. Snow showers.
.WED NIGHT...W wind 25 kt. Seas 14 ft.
.THU...W wind 20 kt. Seas 10 ft.
.THU NIGHT...SW wind 30 kt. Seas 9 ft.
.FRI...SW wind 40 kt. Seas 15 ft.
.SAT...SW wind 25 kt. Seas 14 ft.
.SUN...S wind 20 kt. Seas 14 ft.

$$

PKZ173-251300-
Nikolski to Seguam Island Bering Side-
351 PM AKDT Tue Apr 24 2018

...GALE WARNING TONIGHT...

.TONIGHT...W wind 40 kt diminishing to 30 kt after midnight. Seas
16 ft. Rain showers and snow showers.
.WED...W wind 25 kt. Seas 13 ft. Snow showers.
.WED NIGHT...W wind 25 kt. Seas 10 ft.
.THU AND THU NIGHT...SW wind 30 kt. Seas 10 ft.
.FRI...SW wind 40 kt. Seas 13 ft.
.SAT THROUGH SUN...S wind 20 kt. Seas 12 ft.

$$

PKZ174-251300-
Nikolski to Seguam Island Pacific Side-
351 PM AKDT Tue Apr 24 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 40 kt becoming W 30 kt after midnight. Seas
22 ft. Rain showers.
.WED...W wind 25 kt. Seas 17 ft.
.WED NIGHT...W wind 20 kt. Seas 12 ft.
.THU...W wind 25 kt. Seas 10 ft.
.THU NIGHT...SW wind 30 kt. Seas 9 ft.
.FRI...SW wind 40 kt. Seas 16 ft.
.SAT...S wind 25 kt. Seas 15 ft.
.SUN...S wind 20 kt. Seas 14 ft.

$$

PKZ175-251300-
Seguam Island to Adak Bering Side-
351 PM AKDT Tue Apr 24 2018

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

.TONIGHT...W wind 30 kt. Seas 13 ft. Snow showers and rain
showers.
.WED...W wind 25 kt. Seas 11 ft.
.WED NIGHT...W wind 25 kt. Seas 10 ft.
.THU...SW wind 25 kt. Seas 10 ft.
.THU NIGHT...SW wind 40 kt. Seas 10 ft.
.FRI...SW wind 40 kt. Seas 14 ft.
.SAT...SW wind 20 kt. Seas 9 ft.
.SUN...SW wind 15 kt. Seas 10 ft.

$$

PKZ176-251300-
Seguam Island to Adak Pacific Side-
351 PM AKDT Tue Apr 24 2018

...GALE WARNING TONIGHT...

.TONIGHT...W wind 35 kt. Seas 22 ft. Snow and rain showers.
.WED...W wind 25 kt. Seas 15 ft.
.WED NIGHT...W wind 25 kt. Seas 11 ft.
.THU...W wind 25 kt. Seas 9 ft.
.THU NIGHT...SW wind 40 kt. Seas 11 ft.
.FRI...SW wind 40 kt. Seas 17 ft.
.SAT THROUGH SUN...SW wind 20 kt. Seas 13 ft.

$$

PKZ177-251300-
Adak to Kiska-
351 PM AKDT Tue Apr 24 2018

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

.TONIGHT...W wind 30 kt. Seas 15 ft.
.WED...W wind 25 kt. Seas 11 ft.
.WED NIGHT...W wind 25 kt. Seas 10 ft.
.THU...SW wind 25 kt. Seas 10 ft.
.THU NIGHT...S wind 45 kt. Seas 16 ft.
.FRI...SW wind 40 kt. Seas 18 ft.
.SAT...SW wind 25 kt. Seas 13 ft.
.SUN...SW wind 15 kt. Seas 15 ft.

$$

PKZ178-251300-
Kiska to Attu-
351 PM AKDT Tue Apr 24 2018

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

.TONIGHT...NW wind 25 kt. Seas 13 ft.
.WED...W wind 25 kt. Seas 11 ft.
.WED NIGHT...SW wind 30 kt. Seas 10 ft.
.THU...SW wind 30 kt. Seas 11 ft.
.THU NIGHT...S wind 40 kt. Seas 17 ft.
.FRI THROUGH SAT...SW wind 35 kt. Seas 19 ft.
.SUN...SW wind 20 kt. Seas 18 ft.

$$

PKZ179-251300-
Pribilof Islands Near Shore Waters-
351 PM AKDT Tue Apr 24 2018

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

.TONIGHT...SW wind 20 kt. Seas 10 ft.
.WED...W wind 15 kt becoming NW 25 kt in the afternoon. Seas 8 ft.
.WED NIGHT...W wind 20 kt. Seas 8 ft.
.THU AND THU NIGHT...W wind 30 kt. Seas 11 ft.
.FRI...S wind 30 kt. Seas 14 ft.
.SAT...SW wind 25 kt. Seas 14 ft.
.SUN...S wind 20 kt. Seas 13 ft.

$$

PKZ180-251300-
Kuskokwim Delta and Etolin Strait-
351 PM AKDT Tue Apr 24 2018

...GALE WARNING TONIGHT...

.TONIGHT...S wind 35 kt. Seas 12 ft.
.WED...SW wind 30 kt. Seas 12 ft.
.WED NIGHT...SW wind 20 kt. Seas 8 ft.
.THU...SW wind 25 kt. Seas 7 ft.
.THU NIGHT...SW wind 30 kt. Seas 10 ft.
.FRI THROUGH SAT...S wind 25 kt. Seas 10 ft.
.SUN...S wind 20 kt. Seas 10 ft.

$$

PKZ181-251300-
North and West of Nunivak Island-
351 PM AKDT Tue Apr 24 2018

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

.TONIGHT...S wind 25 kt. Seas 6 ft.
.WED...SW wind 25 kt. Seas 8 ft.
.WED NIGHT...SW wind 25 kt. Seas 9 ft.
.THU AND THU NIGHT...SW wind 25 kt. Seas 8 ft.
.FRI THROUGH SUN...S wind 25 kt. Seas 11 ft.

$$

PKZ185-251300-
Saint Matthew Island Waters-
351 PM AKDT Tue Apr 24 2018

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

.TONIGHT...NW wind 25 kt. Seas 10 ft.
.WED...W wind 30 kt. Seas 10 ft.
.WED NIGHT...W wind 25 kt. Seas 9 ft.
.THU...SW wind 30 kt. Seas 10 ft.
.THU NIGHT...W wind 25 kt. Seas 9 ft.
.FRI...SE wind 30 kt. Seas 16 ft.
.SAT...SW wind 30 kt. Seas 16 ft.
.SUN...S wind 20 kt. Seas 14 ft.

$$

833 
FZAK52 PAFC 251128
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
328 AM AKDT Wed Apr 25 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.

PKZ199-260030-
328 AM AKDT Wed Apr 25 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 974 mb over St Lawrence Island loops into the Chukotsk 
Peninsula at 996 mb for Fri morning. Its front spreads across 
Northern Alaska through Fri morning. A 978 mb Kamchatka low 
extends a front across the Aleutians into Western Bering by Fri 
morning.

$$

PKZ150-260030-
South of the AK Peninsula Sitkinak to Castle Cape-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SW wind 30 kt. Seas 18 ft.
.TONIGHT...SW wind 25 kt. Seas 15 ft.
.THU...SW wind 20 kt. Seas 12 ft.
.THU NIGHT...SW wind 25 kt. Seas 9 ft.
.FRI THROUGH SAT...SW wind 30 kt. Seas 13 to 15 ft.
.SUN...SW wind 20 kt. Seas 12 ft.

$$

PKZ155-260030-
South of the AK Peninsula Castle Cape to Cape Sarichef-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SW wind 30 kt. Seas 20 ft. Rain showers and snow showers.
.TONIGHT...SW wind 25 kt. Seas 16 ft.
.THU...SW wind 20 kt. Seas 12 ft.
.THU NIGHT...SW wind 30 kt. Seas 9 ft.
.FRI...SW wind 35 kt. Seas 15 ft.
.SAT...SW wind 30 kt. Seas 15 ft.
.SUN...SW wind 20 kt. Seas 13 ft.

$$

PKZ160-260030-
Bristol Bay-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...S wind 30 kt. Seas 11 ft.
.TONIGHT...S wind 15 kt. Seas 8 ft.
.THU...SW wind 15 kt. Seas 6 ft.
.THU NIGHT...S wind 25 kt. Seas 8 ft.
.FRI THROUGH SAT...S wind 20 kt. Seas 8 to 9 ft.
.SUN...SW wind 15 kt. Seas 8 ft.

$$

PKZ165-260030-
Port Heiden to Cape Sarichef-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SW wind 30 kt. Seas 14 ft.
.TONIGHT...SW wind 20 kt. Seas 9 ft.
.THU...SW wind 15 kt increasing to 25 kt in the afternoon. 
Seas 8 ft.
.THU NIGHT...SW wind 30 kt. Seas 11 ft.
.FRI...SW wind 30 kt. Seas 13 ft.
.SAT...SW wind 25 kt. Seas 13 ft.
.SUN...SW wind 20 kt. Seas 10 ft.

$$

PKZ170-260030-
Cape Sarichef to Nikolski Bering Side-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SW wind 30 kt. Seas 12 ft. Rain showers and snow showers.
.TONIGHT...W wind 20 kt. Seas 9 ft.
.THU...SW wind 15 kt increasing to 25 kt in the afternoon. 
Seas 9  ft.
.THU NIGHT...SW wind 30 kt. Seas 11 ft.
.FRI...SW wind 35 kt. Seas 14 ft.
.SAT...SW wind 30 kt. Seas 13 ft.
.SUN...SW wind 20 kt. Seas 11 ft.

$$

PKZ171-260030-
Unalaska Bay-
328 AM AKDT Wed Apr 25 2018

.TODAY...SW wind 20 kt with gusts to 30 kt. Seas 3 ft. Rain showers 
and snow showers.
.TONIGHT...W wind 15 kt. Seas 3 ft.
.THU...W wind 10 kt. Seas 2 ft.
.THU NIGHT...SW wind 15 kt. Seas 2 ft.
.FRI...SW wind 30 kt. Seas 5 ft.
.SAT...SW wind 20 kt. Seas 3 ft.
.SUN...S wind 15 kt. Seas 2 ft.

$$

PKZ172-260030-
Cape Sarichef to Nikolski Pacific Side-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SW wind 30 kt. Seas 20 ft.
.TONIGHT...W wind 20 kt. Seas 15 ft.
.THU...W wind 20 kt. Seas 10 ft.
.THU NIGHT...SW wind 25 kt. Seas 10 ft.
.FRI...SW wind 40 kt. Seas 15 ft.
.SAT...SW wind 30 kt. Seas 14 ft.
.SUN...SW wind 20 kt. Seas 13 ft.

$$

PKZ173-260030-
Nikolski to Seguam Island Bering Side-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W wind 25 kt. Seas 13 ft. Rain showers.
.TONIGHT...W wind 20 kt. Seas 10 ft.
.THU...SW wind 25 kt. Seas 10 ft.
.THU NIGHT...SW wind 25 kt. Seas 10 ft.
.FRI...SW wind 40 kt. Seas 14 ft.
.SAT...SW wind 25 kt. Seas 13 ft.
.SUN...SW wind 20 kt. Seas 12 ft.

$$

PKZ174-260030-
Nikolski to Seguam Island Pacific Side-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W wind 25 kt. Seas 18 ft.
.TONIGHT...W wind 20 kt. Seas 13 ft.
.THU...SW wind 25 kt. Seas 10 ft.
.THU NIGHT...SW wind 25 kt. Seas 10 ft.
.FRI...SW wind 40 kt. Seas 16 ft.
.SAT...SW wind 25 kt. Seas 15 ft.
.SUN...SW wind 20 kt. Seas 12 ft.

$$

PKZ175-260030-
Seguam Island to Adak Bering Side-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W wind 25 kt. Seas 11 ft.
.TONIGHT...W wind 20 kt. Seas 10 ft.
.THU...W wind 25 kt. Seas 10 ft.
.THU NIGHT...SW wind 35 kt. Seas 11 ft.
.FRI...SW wind 40 kt. Seas 14 ft.
.SAT THROUGH SUN...SW wind 20 kt. Seas 11 to 13 ft.

$$

PKZ176-260030-
Seguam Island to Adak Pacific Side-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W wind 25 kt. Seas 16 ft.
.TONIGHT...W wind 20 kt. Seas 11 ft.
.THU...W wind 25 kt. Seas 9 ft.
.THU NIGHT...SW wind 35 kt. Seas 12 ft.
.FRI...SW wind 40 kt. Seas 16 ft.
.SAT...SW wind 25 kt. Seas 14 ft.
.SUN...SW wind 20 kt. Seas 13 ft.

$$

PKZ177-260030-
Adak to Kiska-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W wind 25 kt. Seas 13 ft.
.TONIGHT...W wind 25 kt. Seas 11 ft.
.THU...W wind 25 kt. Seas 11 ft.
.THU NIGHT...S wind 40 kt. Seas 16 ft.
.FRI...SW wind 35 kt. Seas 18 ft.
.SAT...SW wind 25 kt. Seas 13 ft.
.SUN...SW wind 20 kt. Seas 17 ft.

$$

PKZ178-260030-
Kiska to Attu-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W wind 25 kt. Seas 12 ft.
.TONIGHT...SW wind 30 kt. Seas 11 ft.
.THU...SW wind 25 kt becoming S 30 kt in the afternoon. Seas 11 ft.
.THU NIGHT...S wind 40 kt. Seas 17 ft.
.FRI THROUGH SAT...SW wind 30 kt. Seas 18 ft.
.SUN...SW wind 25 kt. Seas 17 ft.

$$

PKZ179-260030-
Pribilof Islands Near Shore Waters-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W wind 10 kt. Seas 9 ft.
.TONIGHT...W wind 15 kt. Seas 8 ft.
.THU...SW wind 20 kt increasing to 30 kt in the afternoon. 
Seas 11 ft.
.THU NIGHT...W wind 25 kt. Seas 11 ft.
.FRI...SW wind 30 kt. Seas 14 ft.
.SAT...SW wind 25 kt. Seas 14 ft.
.SUN...SW wind 20 kt. Seas 12 ft.

$$

PKZ180-260030-
Kuskokwim Delta and Etolin Strait-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SW wind 30 kt diminishing to 20 kt in the afternoon. 
Seas 13 ft.
.TONIGHT...SW wind 15 kt. Seas 8 ft.
.THU...SW wind 15 kt becoming S 25 kt in the afternoon. Seas 7 ft.
.THU NIGHT...SW wind 30 kt. Seas 10 ft.
.FRI...S wind 25 kt. Seas 11 ft.
.SAT THROUGH SUN...SW wind 20 kt. Seas 9 to 11 ft.

$$

PKZ181-260030-
North and West of Nunivak Island-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SW wind 15 kt increasing to 25 kt in the afternoon. 
Seas 9 ft.
.TONIGHT...SW wind 25 kt. Seas 9 ft.
.THU...S wind 25 kt. Seas 8 ft. Snow.
.THU NIGHT...SW wind 20 kt. Seas 9 ft.
.FRI...S wind 25 kt. Seas 9 ft.
.SAT THROUGH SUN...S wind 20 kt. Seas 9 to 10 ft.

$$

PKZ185-260030-
Saint Matthew Island Waters-
328 AM AKDT Wed Apr 25 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W wind 25 kt. Seas 11 ft.
.TONIGHT...W wind 25 kt. Seas 10 ft.
.THU...SW wind 25 kt. Seas 11 ft. Snow.
.THU NIGHT...W wind 25 kt. Seas 10 ft.
.FRI...E wind 25 kt. Seas 10 ft.
.SAT THROUGH SUN...SW wind 20 kt. Seas 10 to 11 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
504 AM AKDT Sun Apr 22 2018

.ANALYSIS AND UPPER LEVELS...
An upper level low centered over the Bering just to the north of
the Pribilof Islands early this morning will rotate to the south
as a surface low south of the Alaska Peninsula and associated
upper trough lifts gradually north and east. An associated frontal
system stretching from the Alaska Peninsula east across the
central Gulf continues north, bringing Gales to the Gulf and
strong gap winds to the typical channeled locations such as
Turnagain Arm and the gaps and passes in the Alaska/Aleutian
Range. A deformation band extends from Bristol Bay north along the
Southwest Alaska coastal waters and then curves back to the
northwest towards the upper low near the Pribilofs. To the west a
frontal system associated with a deepening surface low tracking to
the east away from the Kamchatka Peninsula approaches the western
Aleutians.

&&

.MODEL DISCUSSION...
Models remain in good agreement through Monday with some small
differences becoming introduced Monday night and Tuesday
regarding the smaller scale troughs associate with the low in the
Bering and the triple point feature that rotates north across the
Bristol Bay coast.

&&

.AVIATION...
PANC...VFR conditions will continue. Northerly down-Inlet flow
will keep the easterly Turnagain Arm surface winds bent south and
away from the terminal. Wind shear however will still remain a
concern this morning. East to southeasterly flow across the area
will gradually diminishing tonight through Monday morning.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
A strong front in the Gulf of Alaska is pushing toward the north
Gulf coast this morning bringing increasing winds and rain to
coastal regions. The wind through the typical gaps inland will be
a little different today as the low center near Kodiak will have
the Turnagain Arm winds turn down Cook Inlet today instead of
moving over Anchorage. The Copper River winds should also be
mitigated as the pressure gradient will be less in that region
today.
Tomorrow will see a little better chance for rain showers to make
it inland to the lee side of the mountains as the cross-barrier
flow will be less than today.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2...Sat and Sun)...
Just when signs of Spring were perhaps on the horizon, the
weather pattern is set to turn much more Fall-like over the next
several days. First things first, while the low SE of the Alaska
Peninsula is falling apart, it has helped to push some more
moisture up into Bristol Bay and through the West Coast. This
moisture is interacting with what is left of the lift associated
with the Arctic Trough over the Eastern Bering. This will allow
steady precipitation to redevelop across this area through the
day. By later today, this area of precipitation will push east and
spread inland from the coast through tonight. Ahead of this
front, gusty east to southeast winds will continue through the
day. These winds should also help keep the airmass warm enough
that the precipitation should remain all rain for population
centers as it does move in. However, by Mon, the front gets hung
up over the Lower Kuskokwim Valley. Cold air filters in behind it,
so those inland locations should see a gradual mix to some light
snow as precipitations winds down Mon afternoon. This forecast did
keep the PoPs higher over the Alaska Range, but we still don't
expect much accumulation at all.

By late Mon into Tue is when the bigger weather maker moves in.
A very broad (picture basically the entire Bering Sea) low
pressure center moves towards the Central Bering. As it does so,
plenty of jet support aloft and some upper level vorticity round
the base of the low. As they emerge on its SE flank (Bristol Bay),
the combine to produce another triple point low. This feature
looks to take aim right at the west coast as it tracks quickly
from north to south. This will bring moderate to heavy rain to
upslope areas and the coast. The bigger impacts though will likely
be strong east to southeast winds across much of SW AK. Gusts to
50 mph would not be out of the question, which is a little unusual
as we head towards the start of May. Then...as the parent low
moves towards the coast...a long fetch over the Bering with an
onshore pulse of winds could make for some high surf Tue-Wed. Stay
tuned to the forecast for updates regarding this potent weather
system.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
The Bering is set to see a fairly active next couple of days. The
remnants of the Arctic trough will continue to impact the Eastern
Bering today with continued snow showers for the Pribilof Islands
through this morning. This feature will also keep rain falling
over much of the Alaska Peninsula until it is pushed east this
afternoon. Meanwhile, another stronger low is tracking towards the
Western Aleutians. Its accompanying gale-force front will slowly
weakens as it moves towards Adak and Atka today. On the south side
of the system though, cold air advection and a strong upper level
jet will keep gales in the forecast. The system then maintains its
strength in the upper 960mb-lower 970mb range as it continues to
recycle cold air across the entire Bering. Its progress slows and
nearly stalls over the Central Bering into Tue. This will leave
the whole domain vulnerable to showers (possibly mixing with snow
at times) and gale-force (or very near gale-force) winds. Mon
night into Tue, a low will develop near Bristol and strengthen as
it skirts through the Eastern Bering into the Bering Strait.

&&

.LONG TERM FORECAST (Days 3 through 7)...
Beginning Monday night a broad area of low pressure will continue
to dominate the Bering with its front having pushed through the
southern mainland bringing rain to the north Gulf coast and
southwest Alaska. Current model runs are in better agreement than
previous runs with a triple point low forming in the eastern
Bering Monday night, but there does remain some discrepancies with
placement of this feature. These discrepancies grow through
Tuesday as the triple point low moves into the northern Bering
while the parent low tracks east. Impacts will remain fairly
similar for the southern mainland and Aleutians even through
guidance is struggling with where exactly to put these two lows.
On Wednesday high pressure will build in from the west and the
models fall apart with how to handle low pressure over the Bering
with widely varying solutions. This resulted in ensembles being
preferred for the remainder of the week into the weekend.
&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Gale 119 120 130 131 132 138 139 160 175-178 180-185.

&&

SYNOPSIS AND MODEL DISCUSSION...JR
SOUTHCENTRAL ALASKA...EZ
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...MSO
LONG TERM...DK