Storm Warning 66, NWS Anchorage, AK

790 
FZAK52 PAFC 172259
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
259 PM AKDT Tue Mar 17 2020

Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The
Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out.

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ199-181215-
259 PM AKDT Tue Mar 17 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 965 mb low 400 nm west of Attu this afternoon moves to 125 nm 
northwest of Attu at 966 mb late tonight, then moves north through
the Western Bering at 975 mb late Wed night. High pressure is in 
place over the eastern Bering for Wed.

$$

PKZ150-181215-
South of the AK Peninsula Sitkinak to Castle Cape-
259 PM AKDT Tue Mar 17 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...NW wind increasing to 25 kt. Seas 7 ft.
.WED...NW wind 25 kt becoming W 15 kt in the afternoon. Seas 6 ft.
.WED NIGHT...SW wind 15 kt. Seas 4 ft.
.THU...SW wind 25 kt. Seas 8 ft.
.THU NIGHT...W wind 20 kt. Seas 10 ft.
.FRI...SW wind 20 kt. Seas 10 ft.
.SAT THROUGH SUN...NW wind 25 kt. Seas 8 ft.

$$

PKZ155-181215-
South of the AK Peninsula Castle Cape to Cape Sarichef-
259 PM AKDT Tue Mar 17 2020

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...W wind 15 kt. Seas 6 ft.
.WED...S wind 15 kt increasing to 25 kt in the afternoon. From the
Shumagin Islands E, SW wind 15 kt. Seas 6 ft.
.WED NIGHT...S wind 25 kt. From the Shumagin Islands E, SW wind
15 kt increasing to 25 kt after midnight. Seas 10 ft. Rain.
.THU...SW wind 25 kt. Seas 15 ft.
.THU NIGHT...SW wind 20 kt. Seas 15 ft.
.FRI...SW wind 20 kt. Seas 13 ft.
.SAT...NW wind 15 kt. Seas 7 ft.
.SUN...Variable wind 10 kt. Seas 7 ft.

$$

PKZ160-181215-
Bristol Bay-
259 PM AKDT Tue Mar 17 2020

.TONIGHT...W wind 20 kt.
.WED...Variable wind 10 kt.
.WED NIGHT...SE wind 10 kt increasing to 20 kt after midnight. Snow.
.THU...SW wind 20 kt. 
.THU NIGHT...SW wind 25 kt. 
.FRI...SW wind 20 kt. 
.SAT...W wind 15 kt. 
.SUN...W wind 10 kt.

$$

PKZ165-181215-
Port Heiden to Cape Sarichef-
259 PM AKDT Tue Mar 17 2020

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...Variable wind 10 kt becoming S 20 kt after midnight.
From Port Moller E, W wind 20 kt in the evening becoming variable 10
kt. Seas 5 ft.
.WED...S wind 30 kt except S 20 kt from Port Moller E. Seas 7 ft.
Rain.
.WED NIGHT...S wind 25 kt. Seas 7 ft. Rain.
.THU AND THU NIGHT...SW wind 25 kt. Seas 13 ft.
.FRI...SW wind 25 kt. Seas 13 ft.
.SAT...NW wind 15 kt. Seas 7 ft.
.SUN...Variable wind 10 kt. Seas 5 ft.

$$

PKZ170-181215-
Cape Sarichef to Nikolski Bering Side-
259 PM AKDT Tue Mar 17 2020

...GALE WARNING WEDNESDAY...

.TONIGHT...S wind increasing to 30 kt. Seas 8 ft.
.WED...S wind 35 kt. Seas 10 ft. Rain.
.WED NIGHT...SW wind 30 kt. Seas 13 ft.
.THU...SW wind 30 kt. Seas 16 ft.
.THU NIGHT...SW wind 25 kt. Seas 15 ft.
.FRI...SW wind 25 kt. Seas 13 ft.
.SAT...SE wind 15 kt. Seas 6 ft.
.SUN...SE wind 20 kt. Seas 5 ft.

$$

PKZ171-181215-
Unalaska Bay-
259 PM AKDT Tue Mar 17 2020

...SMALL CRAFT ADVISORY WEDNESDAY...

.TONIGHT...Variable wind less than 10 kt increasing to 20 kt after 
midnight. Seas 3 ft.
.WED...S wind 25 kt. Seas 4 ft. Rain.
.WED NIGHT...S wind 20 kt becoming SW 15 kt after midnight. Seas 2 
ft.
.THU AND THU NIGHT...SW wind 15 kt. Seas 2 ft.
.FRI...SW wind 15 kt. Seas 2 ft.
.SAT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...SE wind 15 kt. Seas 2 ft.

$$

PKZ172-181215-
Cape Sarichef to Nikolski Pacific Side-
259 PM AKDT Tue Mar 17 2020

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

.TONIGHT...S wind increasing to 25 kt. Seas 7 ft.
.WED...S wind 30 kt. Seas 13 ft. Rain.
.WED NIGHT...S wind 30 kt. Seas 16 ft. Rain.
.THU...SW wind 25 kt. Seas 19 ft.
.THU NIGHT...SW wind 20 kt. Seas 17 ft.
.FRI...SW wind 20 kt. Seas 12 ft.
.SAT...NE wind 15 kt. Seas 9 ft.
.SUN...SE wind 25 kt. Seas 9 ft.

$$

PKZ173-181215-
Nikolski to Seguam Island Bering Side-
259 PM AKDT Tue Mar 17 2020

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...S wind 30 kt increasing to 40 kt after midnight. Seas
9 ft building to 14 ft after midnight. Rain.
.WED...S wind 40 kt diminishing to 30 kt in the afternoon. Seas
14 ft. Rain.
.WED NIGHT...SW wind 30 kt. Seas 17 ft.
.THU...SW wind 30 kt. Seas 16 ft.
.THU NIGHT...SW wind 25 kt. Seas 13 ft.
.FRI...SW wind 25 kt. Seas 12 ft.
.SAT...E wind 20 kt. Seas 7 ft.
.SUN...SE wind 25 kt. Seas 12 ft.

$$

PKZ174-181215-
Nikolski to Seguam Island Pacific Side-
259 PM AKDT Tue Mar 17 2020

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...S wind 30 kt increasing to 40 kt after midnight. Seas
9 ft building to 14 ft after midnight. Rain.
.WED...S wind 35 kt becoming SW 25 kt in the afternoon. Seas 17 ft. 
Rain.
.WED NIGHT...SW wind 25 kt. Seas 24 ft.
.THU...SW wind 25 kt. Seas 23 ft.
.THU NIGHT...SW wind 20 kt. Seas 17 ft.
.FRI...S wind 20 kt. Seas 12 ft.
.SAT...E wind 20 kt. Seas 10 ft.
.SUN...SE wind 25 kt. Seas 14 ft.

$$

PKZ175-181215-
Seguam Island to Adak Bering Side-
259 PM AKDT Tue Mar 17 2020

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...SE wind 45 kt becoming S 35 kt after midnight. Seas 14 
ft. Rain.
.WED...S wind 40 kt. Seas 14 ft building to 20 ft in the
afternoon.
.WED NIGHT...SW wind 35 kt. Seas 21 ft.
.THU...SW wind 30 kt. Seas 17 ft.
.THU NIGHT...SW wind 25 kt. Seas 12 ft.
.FRI...SW wind 25 kt. Seas 11 ft.
.SAT...SE wind 20 kt. Seas 5 ft.
.SUN...SE wind 25 kt. Seas 11 ft.

$$

PKZ176-181215-
Seguam Island to Adak Pacific Side-
259 PM AKDT Tue Mar 17 2020

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 45 kt. Seas 20 ft. Rain.
.WED...SW wind 35 kt. Seas 21 ft building to 28 ft in the afternoon.
.WED NIGHT...SW wind 35 kt. Seas 30 ft.
.THU...SW wind 30 kt. Seas 24 ft.
.THU NIGHT...S wind 25 kt. Seas 15 ft.
.FRI...SE wind 20 kt. Seas 11 ft.
.SAT...E wind 25 kt. Seas 9 ft.
.SUN...E wind 30 kt. Seas 14 ft.

$$

PKZ177-181215-
Adak to Kiska-
259 PM AKDT Tue Mar 17 2020

...STORM WARNING THROUGH WEDNESDAY...

.TONIGHT...S wind 50 kt. Seas 25 ft.
.WED...S wind 50 kt. Seas 30 ft Bering side...39 ft Pacific side. 
Snow and rain showers.
.WED NIGHT...SW wind 40 kt. Seas 32 ft.
.THU...SW wind 35 kt. Seas 21 ft.
.THU NIGHT...SW wind 25 kt. Seas 14 ft.
.FRI THROUGH SAT...SE wind 20 kt. Seas 10 ft.
.SUN...E wind 25 kt. Seas 11 ft.

$$

PKZ178-181215-
Kiska to Attu-
259 PM AKDT Tue Mar 17 2020

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...SE wind 45 kt. Seas 26 ft. Rain.
.WED...SW wind 45 kt. Seas 30 ft Bering side...37 ft Pacific side. 
Rain and snow showers.
.WED NIGHT...SW wind 40 kt. Seas 30 ft subsiding to 24 ft after
midnight.
.THU...SW wind 30 kt. Seas 20 ft.
.THU NIGHT...SW wind 25 kt. Seas 14 ft.
.FRI THROUGH SAT...S wind 30 kt. Seas 12 ft.
.SUN...SE wind 20 kt. Seas 10 ft.

$$

PKZ179-181215-
Pribilof Islands Near Shore Waters-
259 PM AKDT Tue Mar 17 2020

...GALE WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...S wind 15 kt increasing to 30 kt after midnight. Seas 10 
ft.
.WED...S wind 35 kt. Seas 15 ft. Rain.
.WED NIGHT...S wind 35 kt. Seas 21 ft.
.THU...SW wind 35 kt. Seas 21 ft.
.THU NIGHT...SW wind 30 kt. Seas 19 ft.
.FRI...SW wind 25 kt. Seas 16 ft.
.SAT THROUGH SUN...SE wind 15 kt. Seas 7 ft.

$$

PKZ180-181215-
Kuskokwim Delta and Etolin Strait-
259 PM AKDT Tue Mar 17 2020

...BRISK WIND ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...W wind 20 kt. 
.WED...SE wind 30 kt. 
.WED NIGHT...S wind 30 kt. 
.THU AND THU NIGHT...SW wind 30 kt.
.FRI...SW wind 25 kt.
.SAT THROUGH SUN...S wind 15 kt.

$$

PKZ181-181215-
North and West of Nunivak Island-
259 PM AKDT Tue Mar 17 2020

...BRISK WIND ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...W wind 15 kt becoming S after midnight.
.WED...SE wind 30 kt, except 20 kt S of Cape Newenham. Rain.
.WED NIGHT...SE wind 30 kt.
.THU...S wind 35 kt.
.THU NIGHT...SW wind 30 kt.
.FRI...SW wind 30 kt.
.SAT THROUGH SUN...S wind 20 kt.

$$

PKZ185-181215-
Saint Matthew Island Waters-
259 PM AKDT Tue Mar 17 2020

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...E of Saint Matthew Island, SW wind 15 kt becoming SE
30 kt after midnight. W of Saint Matthew Island, S wind 30 kt
becoming SE 40 kt after midnight. Seas in ice free waters 14 ft.
Rain.
.WED...SE wind 40 kt. Seas in ice free waters 20 ft. Snow.
.WED NIGHT...S wind 40 kt. Seas in ice free waters 24 ft. Rain and
snow.
.THU...SW wind 40 kt. Seas in ice free waters 25 ft.
.THU NIGHT...SW wind 35 kt. Seas in ice free waters 21 ft.
.FRI...SW wind 30 kt. Seas in ice free waters 17 ft.
.SAT THROUGH SUN...S wind 25 kt. Seas in ice free waters 11 ft.

$$

371 
FZAK52 PAFC 172304
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
304 PM AKDT Tue Mar 17 2020

Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The
Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out.

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ199-181230-
304 PM AKDT Tue Mar 17 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 965 mb low 400 nm west of Attu this afternoon moves to 125 nm 
northwest of Attu at 966 mb late tonight, then moves north through
the Western Bering at 975 mb late Wed night. High pressure is in 
place over the eastern Bering for Wed.

$$

PKZ150-181230-
South of the AK Peninsula Sitkinak to Castle Cape-
304 PM AKDT Tue Mar 17 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...NW wind increasing to 25 kt. Seas 7 ft.
.WED...NW wind 25 kt becoming W 15 kt in the afternoon. Seas 6 ft.
.WED NIGHT...SW wind 15 kt. Seas 4 ft.
.THU...SW wind 25 kt. Seas 8 ft.
.THU NIGHT...W wind 20 kt. Seas 10 ft.
.FRI...SW wind 20 kt. Seas 10 ft.
.SAT THROUGH SUN...NW wind 25 kt. Seas 8 ft.

$$

PKZ155-181230-
South of the AK Peninsula Castle Cape to Cape Sarichef-
304 PM AKDT Tue Mar 17 2020

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...W wind 15 kt. Seas 6 ft.
.WED...S wind 15 kt increasing to 25 kt in the afternoon. From the
Shumagin Islands E, SW wind 15 kt. Seas 6 ft.
.WED NIGHT...S wind 25 kt. From the Shumagin Islands E, SW wind
15 kt increasng to 25 kt after midnight. Seas 10 ft. Rain.
.THU...SW wind 25 kt. Seas 15 ft.
.THU NIGHT...SW wind 20 kt. Seas 15 ft.
.FRI...SW wind 20 kt. Seas 13 ft.
.SAT...NW wind 15 kt. Seas 7 ft.
.SUN...Variable wind 10 kt. Seas 7 ft.

$$

PKZ160-181230-
Bristol Bay-
304 PM AKDT Tue Mar 17 2020

.TONIGHT...W wind 20 kt.
.WED...Variable wind 10 kt.
.WED NIGHT...SE wind 10 kt increasing to 20 kt after midnight. Snow.
.THU...SW wind 20 kt. 
.THU NIGHT...SW wind 25 kt. 
.FRI...SW wind 20 kt. 
.SAT...W wind 15 kt. 
.SUN...W wind 10 kt.

$$

PKZ165-181230-
Port Heiden to Cape Sarichef-
304 PM AKDT Tue Mar 17 2020

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...Variable wind 10 kt becoming S 20 kt after midnight.
From Port Moller E, W wind 20 kt in the evening becoming variable 10
kt. Seas 5 ft.
.WED...S wind 30 kt except S 20 kt from Port Moller E. Seas 7 ft.
Rain.
.WED NIGHT...S wind 25 kt. Seas 7 ft. Rain.
.THU AND THU NIGHT...SW wind 25 kt. Seas 13 ft.
.FRI...SW wind 25 kt. Seas 13 ft.
.SAT...NW wind 15 kt. Seas 7 ft.
.SUN...Variable wind 10 kt. Seas 5 ft.

$$

PKZ170-181230-
Cape Sarichef to Nikolski Bering Side-
304 PM AKDT Tue Mar 17 2020

...GALE WARNING WEDNESDAY...

.TONIGHT...S wind increasing to 30 kt. Seas 8 ft.
.WED...S wind 35 kt. Seas 10 ft. Rain.
.WED NIGHT...SW wind 30 kt. Seas 13 ft.
.THU...SW wind 30 kt. Seas 16 ft.
.THU NIGHT...SW wind 25 kt. Seas 15 ft.
.FRI...SW wind 25 kt. Seas 13 ft.
.SAT...SE wind 15 kt. Seas 6 ft.
.SUN...SE wind 20 kt. Seas 5 ft.

$$

PKZ171-181230-
Unalaska Bay-
304 PM AKDT Tue Mar 17 2020

...SMALL CRAFT ADVISORY WEDNESDAY...

.TONIGHT...Variable wind less than 10 kt increasing to 20 kt after 
midnight. Seas 3 ft.
.WED...S wind 25 kt. Seas 4 ft. Rain.
.WED NIGHT...S wind 20 kt becoming SW 15 kt after midnight. Seas 2 
ft.
.THU AND THU NIGHT...SW wind 15 kt. Seas 2 ft.
.FRI...SW wind 15 kt. Seas 2 ft.
.SAT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...SE wind 15 kt. Seas 2 ft.

$$

PKZ172-181230-
Cape Sarichef to Nikolski Pacific Side-
304 PM AKDT Tue Mar 17 2020

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

.TONIGHT...S wind increasing to 25 kt. Seas 7 ft.
.WED...S wind 30 kt. Seas 13 ft. Rain.
.WED NIGHT...S wind 30 kt. Seas 16 ft. Rain.
.THU...SW wind 25 kt. Seas 19 ft.
.THU NIGHT...SW wind 20 kt. Seas 17 ft.
.FRI...SW wind 20 kt. Seas 12 ft.
.SAT...NE wind 15 kt. Seas 9 ft.
.SUN...SE wind 25 kt. Seas 9 ft.

$$

PKZ173-181230-
Nikolski to Seguam Island Bering Side-
304 PM AKDT Tue Mar 17 2020

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...S wind 30 kt increasing to 40 kt after midnight. Seas
9 ft building to 14 ft after midnight. Rain.
.WED...S wind 40 kt diminishing to 30 kt in the afternoon. Seas
14 ft. Rain.
.WED NIGHT...SW wind 30 kt. Seas 17 ft.
.THU...SW wind 30 kt. Seas 16 ft.
.THU NIGHT...SW wind 25 kt. Seas 13 ft.
.FRI...SW wind 25 kt. Seas 12 ft.
.SAT...E wind 20 kt. Seas 7 ft.
.SUN...SE wind 25 kt. Seas 12 ft.

$$

PKZ174-181230-
Nikolski to Seguam Island Pacific Side-
304 PM AKDT Tue Mar 17 2020

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...S wind 30 kt increasing to 40 kt after midnight. Seas
9 ft building to 14 ft after midnight. Rain.
.WED...S wind 35 kt becoming SW 25 kt in the afternoon. Seas 17 ft. 
Rain.
.WED NIGHT...SW wind 25 kt. Seas 24 ft.
.THU...SW wind 25 kt. Seas 23 ft.
.THU NIGHT...SW wind 20 kt. Seas 17 ft.
.FRI...S wind 20 kt. Seas 12 ft.
.SAT...E wind 20 kt. Seas 10 ft.
.SUN...SE wind 25 kt. Seas 14 ft.

$$

PKZ175-181230-
Seguam Island to Adak Bering Side-
304 PM AKDT Tue Mar 17 2020

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...SE wind 45 kt becoming S 35 kt after midnight. Seas 14 
ft. Rain.
.WED...S wind 40 kt. Seas 14 ft building to 20 ft in the
afternoon.
.WED NIGHT...SW wind 35 kt. Seas 21 ft.
.THU...SW wind 30 kt. Seas 17 ft.
.THU NIGHT...SW wind 25 kt. Seas 12 ft.
.FRI...SW wind 25 kt. Seas 11 ft.
.SAT...SE wind 20 kt. Seas 5 ft.
.SUN...SE wind 25 kt. Seas 11 ft.

$$

PKZ176-181230-
Seguam Island to Adak Pacific Side-
304 PM AKDT Tue Mar 17 2020

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 45 kt. Seas 20 ft. Rain.
.WED...SW wind 35 kt. Seas 21 ft building to 28 ft in the afternoon.
.WED NIGHT...SW wind 35 kt. Seas 30 ft.
.THU...SW wind 30 kt. Seas 24 ft.
.THU NIGHT...S wind 25 kt. Seas 15 ft.
.FRI...SE wind 20 kt. Seas 11 ft.
.SAT...E wind 25 kt. Seas 9 ft.
.SUN...E wind 30 kt. Seas 14 ft.

$$

PKZ177-181230-
Adak to Kiska-
304 PM AKDT Tue Mar 17 2020

...STORM WARNING THROUGH WEDNESDAY...

.TONIGHT...S wind 50 kt. Seas 25 ft.
.WED...S wind 50 kt. Seas 30 ft Bering side...39 ft Pacific side. 
Snow and rain showers.
.WED NIGHT...SW wind 40 kt. Seas 32 ft.
.THU...SW wind 35 kt. Seas 21 ft.
.THU NIGHT...SW wind 25 kt. Seas 14 ft.
.FRI THROUGH SAT...SE wind 20 kt. Seas 10 ft.
.SUN...E wind 25 kt. Seas 11 ft.

$$

PKZ178-181230-
Kiska to Attu-
304 PM AKDT Tue Mar 17 2020

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...SE wind 45 kt. Seas 26 ft. Rain.
.WED...SW wind 45 kt. Seas 30 ft Bering side... 37 ft Pacific side.
Rain and snow showers.
.WED NIGHT...SW wind 40 kt. Seas 30 ft subsiding to 24 ft after
midnight.
.THU...SW wind 30 kt. Seas 20 ft.
.THU NIGHT...SW wind 25 kt. Seas 14 ft.
.FRI THROUGH SAT...S wind 30 kt. Seas 12 ft.
.SUN...SE wind 20 kt. Seas 10 ft.

$$

PKZ179-181230-
Pribilof Islands Near Shore Waters-
304 PM AKDT Tue Mar 17 2020

...GALE WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...S wind 15 kt increasing to 30 kt after midnight. Seas 10 
ft.
.WED...S wind 35 kt. Seas 15 ft. Rain.
.WED NIGHT...S wind 35 kt. Seas 21 ft.
.THU...SW wind 35 kt. Seas 21 ft.
.THU NIGHT...SW wind 30 kt. Seas 19 ft.
.FRI...SW wind 25 kt. Seas 16 ft.
.SAT THROUGH SUN...SE wind 15 kt. Seas 7 ft.

$$

PKZ180-181230-
Kuskokwim Delta and Etolin Strait-
304 PM AKDT Tue Mar 17 2020

...BRISK WIND ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...W wind 20 kt. 
.WED...SE wind 30 kt. 
.WED NIGHT...S wind 30 kt. 
.THU AND THU NIGHT...SW wind 30 kt.
.FRI...SW wind 25 kt.
.SAT THROUGH SUN...S wind 15 kt.

$$

PKZ181-181230-
North and West of Nunivak Island-
304 PM AKDT Tue Mar 17 2020

.TONIGHT...W wind 15 kt becoming S after midnight.
.WED...SE wind 30 kt, except 20 kt S of Cape Newenham. Rain.
.WED NIGHT...SE wind 30 kt.
.THU...S wind 35 kt.
.THU NIGHT...SW wind 30 kt.
.FRI...SW wind 30 kt.
.SAT THROUGH SUN...S wind 20 kt.

$$

PKZ185-181230-
Saint Matthew Island Waters-
304 PM AKDT Tue Mar 17 2020

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...E of Saint Matthew Island, SW wind 15 kt becoming SE
30 kt after midnight. W of Saint Matthew Island, S wind 30 kt
becoming SE 40 kt after midnight. Seas in ice free waters 14 ft.
Rain.
.WED...SE wind 40 kt. Seas in ice free waters 20 ft. Snow.
.WED NIGHT...S wind 40 kt. Seas in ice free waters 24 ft. Rain and
snow.
.THU...SW wind 40 kt. Seas in ice free waters 25 ft.
.THU NIGHT...SW wind 35 kt. Seas in ice free waters 21 ft.
.FRI...SW wind 30 kt. Seas in ice free waters 17 ft.
.SAT THROUGH SUN...S wind 25 kt. Seas in ice free waters 11 ft.

$$

575 
FZAK52 PAFC 181204
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
404 AM AKDT Wed Mar 18 2020

Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The
Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out.

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ199-190100-
404 AM AKDT Wed Mar 18 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 967 mb low 175 nm northwest of Attu moves into eastern Russia 
late Wed night. Its associated front dissipates over the eastern 
Bering through Wed afternoon. High pressure builds over the 
eastern Bering and Aleutians Thu night.

$$

PKZ150-190100-
South of the AK Peninsula Sitkinak to Castle Cape-
404 AM AKDT Wed Mar 18 2020

...SMALL CRAFT ADVISORY TODAY AND THURSDAY...

.TODAY...NW wind 25 kt becoming W 15 kt in the afternoon. Seas 6
ft.
.TONIGHT...SW wind 20 kt. Seas 6 ft.
.THU...SW wind 25 kt. Seas 7 ft.
.THU NIGHT...W wind 20 kt. Seas 11 ft.
.FRI...SW wind 20 kt. Seas 10 ft.
.SAT THROUGH SUN...NW wind 25 kt. Seas 8 ft.

$$

PKZ155-190100-
South of the AK Peninsula Castle Cape to Cape Sarichef-
404 AM AKDT Wed Mar 18 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...S wind 15 kt increasing to 25 kt in the afternoon. From
the Shumagin Islands E, SW wind 15 kt. Seas 6 ft.
.TONIGHT...S wind 25 kt except S 20 kt from the Shumagin Islands
E. Seas 9 ft except seas 6 ft from the Shumagin Islands E. Rain.
.THU...SW wind 25 kt. Seas 11 ft building to 15 ft in the afternoon.
Rain.
.THU NIGHT...SW wind 15 kt. Seas 15 ft.
.FRI...SW wind 20 kt. Seas 13 ft.
.SAT...NW wind 15 kt. Seas 7 ft.
.SUN...W wind 15 kt. Seas 11 ft.

$$

PKZ160-190100-
Bristol Bay-
404 AM AKDT Wed Mar 18 2020

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...SW wind 10 kt becoming SE in the afternoon. Seas in ice
free waters 2 ft.
.TONIGHT...SE wind 20 kt. Seas in ice free waters 2 foot. Snow and 
rain.
.THU...S wind 25 kt. Seas in ice free waters 2 ft. Rain and snow.
.THU NIGHT...SW wind 25 kt. Seas in ice free waters 3 ft.
.FRI...SW wind 20 kt. Seas in ice free waters 1 foot.
.SAT...W wind 15 kt. Seas in ice free waters 1 foot.
.SUN...W wind 10 kt. Seas in ice free waters 1 foot.

$$

PKZ165-190100-
Port Heiden to Cape Sarichef-
404 AM AKDT Wed Mar 18 2020

...GALE WARNING TODAY...

.TODAY...S wind 35 kt except SE 20 kt from Port Moller E. Seas 7
ft. Rain.
.TONIGHT...S wind 30 kt. Seas 7 ft. Rain.
.THU...SW wind 25 kt. Seas 8 ft building to 13 ft in the afternoon. 
Rain.
.THU NIGHT...SW wind 25 kt. Seas 13 ft.
.FRI...SW wind 25 kt. Seas 13 ft.
.SAT...NW wind 15 kt. Seas 7 ft.
.SUN...SE wind 15 kt. Seas 5 ft.

$$

PKZ170-190100-
Cape Sarichef to Nikolski Bering Side-
404 AM AKDT Wed Mar 18 2020

...GALE WARNING TODAY...

.TODAY...S wind 35 kt. Seas 11 ft. Rain.
.TONIGHT...S wind 30 kt. Seas 12 ft.
.THU...SW wind 30 kt. Seas 15 ft.
.THU NIGHT...SW wind 25 kt. Seas 14 ft.
.FRI...SW wind 25 kt. Seas 13 ft.
.SAT...SE wind 15 kt. Seas 6 ft.
.SUN...SE wind 20 kt. Seas 9 ft.

$$

PKZ171-190100-
Unalaska Bay-
404 AM AKDT Wed Mar 18 2020

...SMALL CRAFT ADVISORY TODAY...

.TODAY...S wind 30 kt. Seas 5 ft. Rain.
.TONIGHT...S wind 20 kt. Seas 3 ft. Rain.
.THU...SW wind 15 kt. Seas 2 ft.
.THU NIGHT...SW wind 15 kt. Seas 2 ft.
.FRI...SW wind 15 kt. Seas 2 ft.
.SAT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...SE wind 15 kt. Seas 2 ft.

$$

PKZ172-190100-
Cape Sarichef to Nikolski Pacific Side-
404 AM AKDT Wed Mar 18 2020

...GALE WARNING TODAY...

.TODAY...S wind 35 kt. Seas 12 ft. Rain.
.TONIGHT...S wind 30 kt. Seas 16 ft. Rain.
.THU...SW wind 25 kt. Seas 20 ft.
.THU NIGHT...SW wind 20 kt. Seas 17 ft.
.FRI...SW wind 20 kt. Seas 12 ft.
.SAT...NE wind 15 kt. Seas 9 ft.
.SUN...SE wind 25 kt. Seas 14 ft.

$$

PKZ173-190100-
Nikolski to Seguam Island Bering Side-
404 AM AKDT Wed Mar 18 2020

...GALE WARNING TODAY...

.TODAY...S wind 40 kt diminishing to 30 kt in the afternoon. Seas
14 ft. Rain.
.TONIGHT...SW wind 30 kt. Seas 16 ft.
.THU...SW wind 30 kt. Seas 16 ft.
.THU NIGHT...SW wind 25 kt. Seas 12 ft.
.FRI...SW wind 25 kt. Seas 12 ft.
.SAT...E wind 20 kt. Seas 7 ft.
.SUN...SE wind 25 kt. Seas 12 ft.

$$

PKZ174-190100-
Nikolski to Seguam Island Pacific Side-
404 AM AKDT Wed Mar 18 2020

...GALE WARNING TODAY...

.TODAY...S wind 35 kt. Seas 17 ft. Rain.
.TONIGHT...SW wind 30 kt. Seas 19 ft in the evening building to 24 
ft.
.THU...SW wind 25 kt. Seas 22 ft.
.THU NIGHT...S wind 20 kt. Seas 17 ft.
.FRI...S wind 20 kt. Seas 12 ft.
.SAT...E wind 20 kt. Seas 10 ft.
.SUN...E wind 25 kt. Seas 14 ft.

$$

PKZ175-190100-
Seguam Island to Adak Bering Side-
404 AM AKDT Wed Mar 18 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...S wind 40 kt. Seas 13 ft building to 19 ft in the
afternoon.
.TONIGHT...SW wind 40 kt. Seas 20 ft.
.THU...SW wind 30 kt. Seas 16 ft.
.THU NIGHT...S wind 25 kt. Seas 11 ft.
.FRI...SW wind 25 kt. Seas 11 ft.
.SAT...SE wind 20 kt. Seas 5 ft.
.SUN...SE wind 25 kt. Seas 11 ft.

$$

PKZ176-190100-
Seguam Island to Adak Pacific Side-
404 AM AKDT Wed Mar 18 2020

...GALE WARNING TODAY...

.TODAY...S wind 35 kt. Seas 19 ft building to 28 ft in the
afternoon.
.TONIGHT...SW wind 30 kt. Seas 30 ft.
.THU...SW wind 30 kt. Seas 23 ft.
.THU NIGHT...S wind 25 kt. Seas 14 ft.
.FRI...SE wind 20 kt. Seas 11 ft.
.SAT...E wind 25 kt. Seas 9 ft.
.SUN...E wind 30 kt. Seas 14 ft.

$$

PKZ177-190100-
Adak to Kiska-
404 AM AKDT Wed Mar 18 2020

...STORM WARNING TODAY...

.TODAY...S wind 50 kt. Seas 29 ft Bering side...39 ft Pacific side.
Widespread snow showers and rain.
.TONIGHT...SW wind 40 kt. Seas 32 ft subsiding to 26 ft after
midnight. Rain showers and snow showers.
.THU...SW wind 30 kt. Seas 20 ft.
.THU NIGHT...SW wind 25 kt. Seas 13 ft.
.FRI THROUGH SAT...SE wind 20 kt. Seas 10 ft.
.SUN...E wind 25 kt. Seas 11 ft.

$$

PKZ178-190100-
Kiska to Attu-
404 AM AKDT Wed Mar 18 2020

...GALE WARNING THROUGH THURSDAY...

.TODAY...SW wind 45 kt. Seas 30 ft Bering side...38 ft Pacific side.
Widespread rain and snow showers.
.TONIGHT...SW wind 40 kt. Seas 29 ft.
.THU...SW wind 35 kt. Seas 19 ft.
.THU NIGHT...SW wind 25 kt. Seas 14 ft.
.FRI THROUGH SAT...S wind 30 kt. Seas 12 ft.
.SUN...SE wind 20 kt. Seas 10 ft.

$$

PKZ179-190100-
Pribilof Islands Near Shore Waters-
404 AM AKDT Wed Mar 18 2020

...GALE WARNING THROUGH THURSDAY...

.TODAY...S wind 35 kt. Seas 15 ft. Rain.
.TONIGHT...S wind 35 kt. Seas 16 ft in the evening building to 21 
ft.
.THU...SW wind 35 kt. Seas 20 ft.
.THU NIGHT...SW wind 30 kt. Seas 18 ft.
.FRI...SW wind 25 kt. Seas 16 ft.
.SAT THROUGH SUN...SE wind 15 kt. Seas 8 ft.

$$

PKZ180-190100-
Kuskokwim Delta and Etolin Strait-
404 AM AKDT Wed Mar 18 2020

...GALE WARNING TODAY...

.TODAY...SE wind 35 kt. Seas in ice free waters 3 ft. Snow and
rain.
.TONIGHT...S wind 30 kt. Seas in ice free waters 3 ft. Rain and
snow.
.THU...SW wind 30 kt. Seas in ice free waters 3 ft.
.THU NIGHT...SW wind 30 kt. Seas in ice free waters 3 ft.
.FRI...SW wind 25 kt. Seas in ice free waters 2 ft.
.SAT...SW wind 15 kt. Seas in ice free waters 1 foot.
.SUN...S wind 15 kt. Seas in ice free waters 2 ft.

$$

PKZ181-190100-
North and West of Nunivak Island-
404 AM AKDT Wed Mar 18 2020

...GALE WARNING THROUGH THURSDAY...

.TODAY...SE wind 30 kt increasing to 40 kt in the afternoon. Snow 
and rain.
.TONIGHT...S wind 40 kt. Rain.
.THU...S wind 35 kt.
.THU NIGHT...SW wind 35 kt.
.FRI...SW wind 30 kt.
.SAT THROUGH SUN...S wind 20 kt.

$$

PKZ185-190100-
Saint Matthew Island Waters-
404 AM AKDT Wed Mar 18 2020

...GALE WARNING THROUGH THURSDAY...

.TODAY...SE wind 40 kt. Seas in ice free waters 20 ft. Snow.
.TONIGHT...S wind 40 kt. Seas in ice free waters 25 ft. Snow.
.THU...SW wind 40 kt. Seas in ice free waters 25 ft. Snow.
.THU NIGHT...SW wind 35 kt. Seas in ice free waters 21 ft.
.FRI...SW wind 30 kt. Seas in ice free waters 17 ft.
.SAT THROUGH SUN...S wind 25 kt. Seas in ice free waters 11 ft.

$$

327 
FZAK52 PAFC 182335
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
335 PM AKDT Wed Mar 18 2020

Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The
Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out.

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ199-191245-
335 PM AKDT Wed Mar 18 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 969 mb low 370 nm north of Attu moves into the Gulf of Anadyr 
Thursday morning while slowly dissipating. Southwesterly flow 
develops across the Bering Thursday morning and continues through 
Saturday afternoon. 

$$

PKZ150-191245-
South of the AK Peninsula Sitkinak to Castle Cape-
335 PM AKDT Wed Mar 18 2020

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

.TONIGHT...SW wind 20 kt. Seas 5 ft.
.THU...SW wind 25 kt. Seas 7 ft.
.THU NIGHT...W wind 20 kt. Seas 10 ft.
.FRI...Variable wind 10 kt. Seas 9 ft.
.FRI NIGHT...SW wind 20 kt. Seas 8 ft.
.SAT THROUGH SUN...NW wind 25 kt. Seas 8 ft.
.MON...W wind 15 kt. Seas 9 ft.

$$

PKZ155-191245-
South of the AK Peninsula Castle Cape to Cape Sarichef-
335 PM AKDT Wed Mar 18 2020

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

.TONIGHT...S wind 25 kt except S 20 kt from the Shumagin Islands
E. Seas 9 ft. Rain.
.THU...SW wind 25 kt. Seas 15 ft. Rain.
.THU NIGHT...W wind 15 kt. Seas 15 ft.
.FRI...S wind 15 kt. Seas 11 ft.
.FRI NIGHT...SW wind 20 kt. Seas 7 ft.
.SAT...NW wind 15 kt. Seas 7 ft.
.SUN...W wind 15 kt. Seas 11 ft.
.MON...S wind 15 kt. Seas 11 ft.

$$

PKZ160-191245-
Bristol Bay-
335 PM AKDT Wed Mar 18 2020

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

.TONIGHT...SE wind 20 kt. Seas in ice free waters 1 foot. Snow and
rain.
.THU...S wind 25 kt. Seas in ice free waters 3 ft. Rain and snow.
.THU NIGHT...SW wind 25 kt. Seas in ice free waters 3 ft.
.FRI...SW wind 20 kt. Seas in ice free waters 2 ft.
.FRI NIGHT...SW wind 15 kt. Seas in ice free waters 3 ft.
.SAT...W wind 20 kt. Seas in ice free waters 2 ft.
.SUN THROUGH MON...SW wind 10 kt. Seas in ice free waters 1 foot.

$$

PKZ165-191245-
Port Heiden to Cape Sarichef-
335 PM AKDT Wed Mar 18 2020

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

.TONIGHT...S wind 30 kt. Seas 7 ft. Rain.
.THU...SW wind 25 kt. Seas 12 ft. Rain.
.THU NIGHT...SW wind 25 kt. Seas 13 ft.
.FRI AND FRI NIGHT...SW wind 20 kt. Seas 9 ft.
.SAT...NW wind 20 kt. Seas 7 ft.
.SUN THROUGH MON...SE wind 15 kt. Seas 6 ft.

$$

PKZ170-191245-
Cape Sarichef to Nikolski Bering Side-
335 PM AKDT Wed Mar 18 2020

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

.TONIGHT...S wind 30 kt. Seas 12 ft.
.THU...SW wind 30 kt. Seas 15 ft.
.THU NIGHT...SW wind 25 kt. Seas 13 ft.
.FRI...S wind 20 kt. Seas 10 ft.
.FRI NIGHT...SW wind 20 kt. Seas 8 ft.
.SAT...SE wind 15 kt. Seas 6 ft.
.SUN THROUGH MON...SE wind 20 kt. Seas 9 ft.

$$

PKZ171-191245-
Unalaska Bay-
335 PM AKDT Wed Mar 18 2020

.TONIGHT...S wind 20 kt. Seas 3 ft. Rain.
.THU...SW wind 15 kt. Seas 2 ft.
.THU NIGHT...SW wind 15 kt. Seas 2 ft.
.FRI...S wind 15 kt. Seas 2 ft.
.FRI NIGHT...SW wind 10 kt. Seas 2 ft.
.SAT...Variable wind less than 10 kt. Seas 2 ft.
.SUN THROUGH MON...SE wind 15 kt. Seas 2 ft.

$$

PKZ172-191245-
Cape Sarichef to Nikolski Pacific Side-
335 PM AKDT Wed Mar 18 2020

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

.TONIGHT...S wind 30 kt. Seas 17 ft. Rain.
.THU...SW wind 25 kt. Seas 19 ft.
.THU NIGHT...SW wind 20 kt. Seas 17 ft.
.FRI...S wind 15 kt. Seas 9 ft.
.FRI NIGHT...SW wind 20 kt. Seas 7 ft.
.SAT...NE wind 15 kt. Seas 9 ft.
.SUN...SE wind 25 kt. Seas 14 ft.
.MON...SE wind 20 kt. Seas 14 ft.

$$

PKZ173-191245-
Nikolski to Seguam Island Bering Side-
335 PM AKDT Wed Mar 18 2020

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

.TONIGHT...SW wind 30 kt. Seas 15 ft.
.THU...SW wind 30 kt. Seas 15 ft.
.THU NIGHT...SW wind 25 kt. Seas 12 ft.
.FRI...S wind 20 kt. Seas 9 ft.
.FRI NIGHT...W wind 15 kt. Seas 7 ft.
.SAT...E wind 20 kt. Seas 7 ft.
.SUN...SE wind 25 kt. Seas 12 ft.
.MON...SE wind 20 kt. Seas 10 ft.

$$

PKZ174-191245-
Nikolski to Seguam Island Pacific Side-
335 PM AKDT Wed Mar 18 2020

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

.TONIGHT...SW wind 30 kt. Seas 23 ft.
.THU...SW wind 25 kt. Seas 23 ft.
.THU NIGHT...SW wind 20 kt. Seas 17 ft subsiding to 12 ft after
midnight.
.FRI...S wind 15 kt. Seas 9 ft.
.FRI NIGHT...Variable wind 10 kt. Seas 8 ft.
.SAT...E wind 20 kt. Seas 9 ft.
.SUN...E wind 25 kt. Seas 14 ft.
.MON...SE wind 20 kt. Seas 14 ft.

$$

PKZ175-191245-
Seguam Island to Adak Bering Side-
335 PM AKDT Wed Mar 18 2020

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 40 kt. Seas 20 ft.
.THU...SW wind 30 kt. Seas 16 ft.
.THU NIGHT...S wind 25 kt. Seas 11 ft.
.FRI...SW wind 20 kt. Seas 9 ft.
.FRI NIGHT...Variable wind 10 kt. Seas 6 ft.
.SAT...SE wind 20 kt. Seas 6 ft.
.SUN...SE wind 25 kt. Seas 11 ft.
.MON...SE wind 15 kt. Seas 7 ft.

$$

PKZ176-191245-
Seguam Island to Adak Pacific Side-
335 PM AKDT Wed Mar 18 2020

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

.TONIGHT...SW wind 30 kt. Seas 29 ft.
.THU...SW wind 30 kt. Seas 23 ft.
.THU NIGHT...S wind 25 kt. Seas 15 ft.
.FRI...SW wind 15 kt. Seas 10 ft.
.FRI NIGHT...Variable wind 10 kt. Seas 6 ft.
.SAT...E wind 25 kt. Seas 9 ft.
.SUN...E wind 30 kt. Seas 14 ft.
.MON...SE wind 15 kt. Seas 10 ft.

$$

PKZ177-191245-
Adak to Kiska-
335 PM AKDT Wed Mar 18 2020

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 40 kt. Seas 31 ft. Rain showers and snow
showers.
.THU...SW wind 30 kt. Seas 20 ft subsiding to 15 ft in the
afternoon.
.THU NIGHT...SW wind 25 kt. Seas 13 ft.
.FRI...SW wind 15 kt. Seas 9 ft.
.FRI NIGHT...SE wind 20 kt. Seas 8 ft.
.SAT...SE wind 20 kt. Seas 8 ft.
.SUN...E wind 25 kt. Seas 11 ft.
.MON...SE wind 20 kt. Seas 9 ft.

$$

PKZ178-191245-
Kiska to Attu-
335 PM AKDT Wed Mar 18 2020

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SW wind 40 kt. Seas 29 ft subsiding to 23 ft after
midnight.
.THU...SW wind 35 kt. Seas 18 ft.
.THU NIGHT...SW wind 25 kt. Seas 14 ft.
.FRI...SW wind 25 kt. Seas 10 ft.
.FRI NIGHT...S wind 35 kt. Seas 10 ft.
.SAT...S wind 35 kt. Seas 14 ft.
.SUN THROUGH MON...SE wind 20 kt. Seas 10 ft.

$$

PKZ179-191245-
Pribilof Islands Near Shore Waters-
335 PM AKDT Wed Mar 18 2020

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...S wind 35 kt. Seas 20 ft.
.THU...SW wind 35 kt. Seas 20 ft.
.THU NIGHT...SW wind 30 kt. Seas 17 ft.
.FRI...SW wind 25 kt. Seas 12 ft.
.FRI NIGHT...SW wind 15 kt. Seas 11 ft.
.SAT THROUGH SUN...SE wind 15 kt. Seas 8 ft.
.MON...SE wind 20 kt. Seas 9 ft.

$$

PKZ180-191245-
Kuskokwim Delta and Etolin Strait-
335 PM AKDT Wed Mar 18 2020

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

.TONIGHT...S wind 30 kt. Seas in ice free waters 3 ft. Rain and
snow.
.THU...SW wind 30 kt. Seas in ice free waters 3 ft.
.THU NIGHT...SW wind 30 kt. Seas in ice free waters 4 ft.
.FRI...SW wind 25 kt. Seas in ice free waters 2 ft.
.FRI NIGHT...SW wind 20 kt. Seas in ice free waters 2 ft.
.SAT...W wind 15 kt. Seas in ice free waters 2 ft.
.SUN THROUGH MON...S wind 15 kt. Seas in ice free waters 2 ft.

$$

PKZ181-191245-
North and West of Nunivak Island-
335 PM AKDT Wed Mar 18 2020

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...S wind 40 kt.
.THU...S wind 35 kt.
.THU NIGHT...SW wind 35 kt.
.FRI...SW wind 30 kt.
.FRI NIGHT...SW wind 20 kt.
.SAT THROUGH MON...S wind 20 kt.

$$

PKZ185-191245-
Saint Matthew Island Waters-
335 PM AKDT Wed Mar 18 2020

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...S wind 40 kt. Seas in ice free waters 25 ft. Snow
showers.
.THU...SW wind 40 kt. Seas in ice free waters 24 ft. Snow.
.THU NIGHT...SW wind 35 kt. Seas in ice free waters 20 ft.
.FRI...SW wind 25 kt. Seas in ice free waters 15 ft.
.FRI NIGHT...SW wind 20 kt. Seas in ice free waters 10 ft.
.SAT THROUGH SUN...S wind 25 kt. Seas in ice free waters 11 ft.
.MON...S wind 20 kt. Seas in ice free waters 9 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
438 PM AKDT Mon Mar 16 2020

.ANALYSIS AND UPPER LEVELS...
The high pressure over the Gulf and Southcentral remains today,
but is weakening and moving southeastward away from the region.
A weak trough along the north Gulf of Alaska coast is a small
feature, but important enough to keep those gap winds from Seward
through Prince William Sound going today.

A low south of the Alaska Peninsula and associated front will
move over Kodiak tonight and into Southcentral tomorrow. The large
low is still a bit southwest of Attu but will move into the
Bering Sea Tuesday night and become the main weather feature out
west the remainder of the week.

&&

.MODEL DISCUSSION...
Models can now be considered in very good agreement with forecast
confidence increasing. Even the precipitation-type questions over
Southwest Alaska are becoming more clear with the latest model
runs.

&&

.AVIATION...
PANC...VFR conditions and light winds will persist through Monday
night. Snow will move into the area Tuesday bringing MVFR or IFR
conditions to the terminal in the afternoon.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
High pressure remains in place over Southcentral AK. However, a
weak area of low pressure will push northeastward from Kodiak into
the Southcentral coast tonight into tomorrow night. This will
induce a barrier jet and turnagain arm winds. Recent model runs
show the barrier jet will be stronger than initially forecast, so
we upped barrier jet strength. Southcentral can continue to
expect light precipitation out of this system as well. Most
locations will remain cold enough to see snow, however it will be
warm enough along the coast of the southern Kenai for places like
Homer to see rain. Overall, the forecast looks to be on track so
little change was made. Confidence is high with good model
agreement with this system.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3)...
An area of low pressure currently centered south of the Alaska
Peninsula will drift northward and inland over the Bristol Bay
region. As the leading warm front moves in over Southwest Alaska,
expect warming temperatures and widespread precipitation. The main
forecast challenge continues to be precipitation type. A mix of
snow and potentially freezing rain will begin at the onset tonight
followed by a change to rain Tuesday as temperatures continue to
warm. As an upper level trough moves over the area late Tuesday,
colder temperatures will be reintroduced at the mid-levels,
allowing for a return to snow, especially over the Kuskokwim Delta
area Tuesday evening.

Any lingering precipitation will taper off by Wednesday as an
upper level ridge moves in over Southwest Alaska. A frontal
system associated with a storm force low moving north toward the
Gulf of Anadyr will bring the area another round of wintry weather
beginning Wednesday night and continuing through Thursday
afternoon. Areas north of Dillingham and King Salmon will remain
all snow at this time as temperatures will be falling at 850mb as
the precipitation is moving through. Areas south will remain
mostly rain with the an area of rain/snow mix possible near
Egegik.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3)...
Weak, unorganized flow across the Bering is keeping stratus and
low level moisture in place, especially over the Pribilof Islands.
A ridge of high pressure builds over the area for Tuesday
morning, allowing low level stratus and fog to persist.

Meanwhile, a storm force low over the North Pacific will continue
moving northward early Wednesday morning with the center
remaining west of the western Aleutians and western Bering Sea.
Strong cold air advection on the backside of this low will bring
strong gusty winds to the region as a result. Therefore, storm
force winds were introduced in this forecast package for Wednesday
afternoon and evening over the western Aleutians. Winds will
begin to slowly subside early Thursday but still remain fairly
gusty with gale force winds expected through Thursday afternoon
and evening before subsiding further to small craft advisory
level.

The aforementioned low pressure will send a cold front through the
central Bering and central Aleutians Wednesday morning along with
strong southerly winds. This front will continue moving eastward
with a faster timeline expected for the Pribilof Islands.
Therefore, pops were increased to the likely category a few hours
earlier. All rain is expected with this front as plenty of warm
air will be in place as the front pushes through. Behind the
front, cold air advection will take over which will create gusty
winds on the backside of the low.

&&

.MARINE (Days 3 through 5 Thu through Sat)...
On Thursday morning a front associated with a low in the eastern
Bering will enter the western Gulf bringing with it small craft
winds. There is low confidence that another triple point low will
form in the northern Gulf Thursday night. If it does, expect gale
force winds to occur through channels including Shelikof Strait,
the Barren Islands and through gaps and passes on the Pacific side
of the Alaska Peninsula through Saturday morning.

A gale force front over the Bering will continue to push
northeastward through Thursday before it exits the Bering
Friday. There is moderate confidence that another front will enter
the western Bering Friday night. Depending on the strength and
track of this front, gale force winds will be possible in the
western Bering through Saturday.

&&

.LONG TERM FORECAST (Days 3 through 7 Thu through Tue)...
Models continue to show good agreement that an upper level ridge
that extends from the Gulf north across the state, will continue
eastward into Canada on Thursday. Upstream, ahead of a large
Bering low, a strong front moves eastward across western Alaska
and the Peninsula. This front will impact the southwest coast
Thursday into Friday, bringing precipitation and strong southerly
flow. The track of this low still remains uncertain, though models
are showing the center departing the Bering to the north by
Friday. This will be followed by another upper level ridge moving
across the Bering and into southern Alaska through Sunday. Similar
to last week, warm temperatures and moist conditions will advect
into the Aleutians and Bering following the backside of the ridge.
This pattern will continue to alternate through Tuesday as upper
level troughs and ridges continue to follow one another across the
Bering.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Gale Warning 173>178 185.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...EZ
SOUTHCENTRAL ALASKA...BB
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...KO/MV
MARINE/LONG TERM...CK