Small Craft Advisory 644, NWS Anchorage, AK

308 
FZAK52 PAFC 161448 AAA
CWFALU

Coastal Waters Forecast...UPDATED
National Weather Service Anchorage AK
648 AM AKDT Mon Aug 16 2021

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.

PKZ199-170315-
648 AM AKDT Mon Aug 16 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 996 mb North Pacific low 160 nm south of Adak will move to 60 
nm southeast of Dutch Harbor at 1004 mb Tue morning and then 
weaken Tue afternoon. Its associated front will cross the Aleutian
Islands and spread east over Bristol Bay through Tue afternoon. A
1004 mb Bering low will move to 340 nm northwest of Saint Paul 
Wed morning.

$$

PKZ150-170315-
South of the AK Peninsula Sitkinak to Castle Cape-
648 AM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW wind 20 kt becoming SE 30 kt in the afternoon. 
Seas 8 ft. Rain. 
.TONIGHT...S wind 30 kt. Seas 11 ft. 
.TUE...SW wind 20 kt. Seas 9 ft. 
.TUE NIGHT...W wind 15 kt. Seas 9 ft. 
.WED THROUGH FRI...SW wind 15 kt. Seas 7 ft.

$$

PKZ155-170315-
South of the AK Peninsula Castle Cape to Cape Sarichef-
648 AM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SE wind 30 kt. Seas 9 ft. Rain. 
.TONIGHT...SW wind 25 kt. Seas 9 ft. 
.TUE...SW wind 20 kt. Seas 10 ft. 
.TUE NIGHT...W wind 15 kt. Seas 10 ft. 
.WED THROUGH THU...SW wind 15 kt. Seas 7 ft. 
.FRI...Variable wind 10 kt. Seas 6 ft.

$$

PKZ160-170315-
Bristol Bay-
648 AM AKDT Mon Aug 16 2021

.TODAY...S wind 10 kt becoming SE 15 kt in the afternoon. 
Seas 3 ft. Rain. 
.TONIGHT...E wind 20 kt. Seas 4 ft.
.TUE...NE wind 15 kt in the morning becoming variable 
less than 10 kt. Seas 2 ft. 
.TUE NIGHT...W wind 15 kt. Seas 2 ft. 
.WED...SW wind 15 kt. Seas 2 ft. 
.THU...SW wind 20 kt. Seas 4 ft. 
.FRI...NW wind 15 kt. Seas 3 ft.

$$

PKZ165-170315-
Port Heiden to Cape Sarichef-
648 AM AKDT Mon Aug 16 2021

.TODAY...SE wind 20 kt. Gusts to 30 kt out of bays and passes in
the morning. Seas 5 ft.
.TONIGHT...NE wind 15 kt. Seas 4 ft. 
.TUE...NE wind 15 kt. Seas 3 ft. 
.TUE NIGHT...Variable wind 10 kt. Seas 2 ft. 
.WED THROUGH THU...SW wind 20 kt. Seas 4 ft. 
.FRI...N wind 15 kt. Seas 5 ft.

$$

PKZ170-170315-
Cape Sarichef to Nikolski Bering Side-
648 AM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...E wind 25 kt. Seas 7 ft. 
.TONIGHT...NE wind 20 kt. Seas 5 ft. 
.TUE...N wind 15 kt. Seas 5 ft. 
.TUE NIGHT...N wind 15 kt. Seas 4 ft. 
.WED THROUGH THU...SW wind 20 kt. Seas 5 ft. 
.FRI...N wind 15 kt. Seas 5 ft.

$$

PKZ171-170315-
Unalaska Bay-
648 AM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...E wind 25 kt diminishing to 15 kt in the afternoon. 
Seas 3 ft. Rain. 
.TONIGHT...Variable wind less than 10 kt. Seas 2 ft. 
.TUE...N wind 10 kt. Seas 2 ft. 
.TUE NIGHT...N wind 10 kt. Seas 3 ft. 
.WED THROUGH THU...SW wind 15 kt. Seas 3 ft. 
.FRI...N wind 10 kt. Seas 3 ft.

$$

PKZ172-170315-
Cape Sarichef to Nikolski Pacific Side-
648 AM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SE wind 25 kt. Seas 8 ft. 
.TONIGHT...S wind 20 kt. Seas 11 ft. 
.TUE...NW wind 20 kt. Seas 11 ft. 
.TUE NIGHT...N wind 15 kt. Seas 8 ft. 
.WED...NW wind 15 kt. Seas 6 ft. 
.THU...SW wind 15 kt. Seas 6 ft. 
.FRI...NE wind 15 kt. Seas 9 ft.

$$

PKZ173-170315-
Nikolski to Seguam Island Bering Side-
648 AM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...E wind 25 kt. Seas 7 ft. Rain. 
.TONIGHT...NE wind 20 kt. Seas 8 ft. 
.TUE...N wind 20 kt. Seas 7 ft. 
.TUE NIGHT...Variable wind 10 kt. Seas 5 ft. 
.WED THROUGH THU...SW wind 15 kt. Seas 5 ft. 
.FRI...N wind 15 kt. Seas 6 ft.

$$

PKZ174-170315-
Nikolski to Seguam Island Pacific Side-
648 AM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...S wind 25 kt. Seas 11 ft. 
.TONIGHT...SE wind 20 kt becoming NW after midnight. Seas 12 ft. 
.TUE...N wind 15 kt. Seas 9 ft. 
.TUE NIGHT...N wind 15 kt. Seas 6 ft. 
.WED...W wind 15 kt. Seas 6 ft. 
.THU...SW wind 15 kt. Seas 5 ft. 
.FRI...N wind 20 kt. Seas 9 ft.

$$

PKZ175-170315-
Seguam Island to Adak Bering Side-
648 AM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt. Seas 8 ft. Rain. 
.TONIGHT...N wind 25 kt. Seas 8 ft. 
.TUE...N wind 15 kt. Seas 6 ft. 
.TUE NIGHT...Variable wind 10 kt. Seas 3 ft. 
.WED THROUGH THU...SW wind 15 kt. Seas 4 ft. 
.FRI...Variable wind 10 kt. Seas 4 ft.

$$

PKZ176-170315-
Seguam Island to Adak Pacific Side-
648 AM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NE wind 25 kt. Seas 10 ft. 
.TONIGHT...NW wind 30 kt becoming N 20 kt after midnight. Seas
10  ft. 
.TUE...N wind 20 kt. Seas 7 ft. 
.TUE NIGHT...Variable wind 10 kt. Seas 5 ft. 
.WED THROUGH THU...W wind 15 kt. Seas 6 ft. 
.FRI...NW wind 15 kt. Seas 5 ft.

$$

PKZ177-170315-
Adak to Kiska-
648 AM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 25 kt. Seas 7 ft. 
.TONIGHT...N wind 25 kt becoming NW 15 kt after midnight. Seas
7 ft. 
.TUE...NW wind 15 kt. Seas 5 ft. 
.TUE NIGHT...W wind 15 kt. Seas 4 ft. 
.WED...W wind 15 kt. Seas 5 ft. 
.THU THROUGH FRI...SW wind 15 kt. Seas 5 ft.

$$

PKZ178-170315-
Kiska to Attu-
648 AM AKDT Mon Aug 16 2021

.TODAY...NW wind 20 kt. Seas 5 ft. 
.TONIGHT...NW wind 15 kt. Seas 4 ft. 
.TUE...W wind 20 kt. Seas 5 ft. 
.TUE NIGHT...W wind 20 kt. Seas 5 ft. 
.WED...SW wind 20 kt. Seas 5 ft. 
.THU...S wind 15 kt. Seas 5 ft. 
.FRI...S wind 20 kt. Seas 6 ft.

$$

PKZ179-170315-
Pribilof Islands Near Shore Waters-
648 AM AKDT Mon Aug 16 2021

.TODAY...E wind 15 kt. Seas 5 ft. 
.TONIGHT...Variable wind 10 kt. Seas 4 ft. 
.TUE...Variable wind 10 kt. Seas 4 ft. 
.TUE NIGHT...SW wind 15 kt. Seas 4 ft. 
.WED...SW wind 20 kt. Seas 5 ft. 
.THU...W wind 15 kt. Seas 6 ft. 
.FRI...Variable wind 10 kt. Seas 3 ft.

$$

PKZ180-170315-
Kuskokwim Delta and Etolin Strait-
648 AM AKDT Mon Aug 16 2021

.TODAY...S wind 20 kt. Seas 5 ft. 
.TONIGHT...E wind 15 kt becoming N after midnight. Seas 3 ft. 
.TUE...N wind 15 kt becoming NW in the afternoon. Seas 3 ft. 
.TUE NIGHT...W wind 15 kt. Seas 3 ft. 
.WED...SW wind 25 kt. Seas 6 ft. 
.THU...W wind 20 kt. Seas 6 ft. 
.FRI...NW wind 15 kt. Seas 5 ft.

$$

PKZ181-170315-
North and West of Nunivak Island-
648 AM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...SW wind 25 kt. Seas 7 ft. 
.TONIGHT...NW wind 15 kt. Seas 4 ft. 
.TUE...NE wind 15 kt. Seas 4 ft. 
.TUE NIGHT...SE wind 15 kt. Seas 4 ft. 
.WED...SW wind 25 kt. Seas 7 ft. 
.THU...W wind 20 kt. Seas 9 ft. 
.FRI...W wind 15 kt. Seas 5 ft.

$$

PKZ185-170315-
Saint Matthew Island Waters-
648 AM AKDT Mon Aug 16 2021

.TODAY...NW wind 20 kt. Seas 6 ft. 
.TONIGHT...NE wind 15 kt. Seas 5 ft. 
.TUE...SE wind 20 kt. Seas 5 ft. 
.TUE NIGHT...S wind 25 kt. Seas 6 ft. 
.WED...NW wind 25 kt. Seas 8 ft. 
.THU...W wind 20 kt. Seas 8 ft. 
.FRI...S wind 15 kt. Seas 4 ft.

$$

079 
FZAK52 PAFC 162346
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
346 PM AKDT Mon Aug 16 2021

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.

PKZ199-171300-
346 PM AKDT Mon Aug 16 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 997 mb low 105 nm W of Nikolski swings to 45 nm north of 
Sitkinak and weakens to 1016 mb Wed afternoon. Its front remains 
south of the Aleutians and spreads into the Gulf through Wed 
afternoon. A 1006 mb North Kamchatka low slides to 65 nm north of 
St Matthew Island at 1003 mb Wed afternoon.

$$

PKZ150-171300-
South of the AK Peninsula Sitkinak to Castle Cape-
346 PM AKDT Mon Aug 16 2021

...GALE WARNING TONIGHT...

.TONIGHT...S wind 35 kt becoming SW 25 kt after midnight. Seas
12 ft.
.TUE...SW wind 20 kt. Seas 9 ft.
.TUE NIGHT...SW wind 15 kt. Seas 8 ft.
.WED...Variable wind 10 kt. Seas 7 ft.
.WED NIGHT...SW wind 15 kt. Seas 7 ft.
.THU THROUGH FRI...SW wind 15 kt. Seas 6 ft.
.SAT...SW wind 20 kt. Seas 11 ft.

$$

PKZ155-171300-
South of the AK Peninsula Castle Cape to Cape Sarichef-
346 PM AKDT Mon Aug 16 2021

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

.TONIGHT...SW wind 25 kt. Seas 10 ft. Patchy fog.
.TUE...SW wind 20 kt. Seas 9 ft. Patchy fog.
.TUE NIGHT...W wind 15 kt. Seas 9 ft. Patchy fog.
.WED...Variable wind 10 kt. Seas 7 ft.
.WED NIGHT...W wind 15 kt. Seas 6 ft.
.THU...SW wind 15 kt. Seas 6 ft.
.FRI...Variable wind 10 kt. Seas 6 ft.
.SAT...SW wind 20 kt. Seas 11 ft.

$$

PKZ160-171300-
Bristol Bay-
346 PM AKDT Mon Aug 16 2021

.TONIGHT...E wind 20 kt. Seas 3 ft.
.TUE...NE wind 15 kt becoming N in the afternoon. Seas 2 ft.
.TUE NIGHT...NW wind 10 kt. Seas 2 ft.
.WED...W wind 10 kt. Seas 2 ft.
.WED NIGHT...SW wind 20 kt. Seas 3 ft.
.THU...SW wind 25 kt. Seas 5 ft.
.FRI THROUGH SAT...NW wind 15 kt. Seas 4 ft.

$$

PKZ165-171300-
Port Heiden to Cape Sarichef-
346 PM AKDT Mon Aug 16 2021

.TONIGHT...E wind 20 kt. Seas 5 ft. Patchy fog.
.TUE...NE wind 15 kt. Seas 4 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 2 ft. Patchy fog.
.WED...Variable wind 10 kt. Seas 2 ft.
.WED NIGHT...SW wind 20 kt. Seas 4 ft.
.THU...SW wind 20 kt. Seas 6 ft.
.FRI...N wind 15 kt. Seas 5 ft.
.SAT...W wind 20 kt. Seas 5 ft.

$$

PKZ170-171300-
Cape Sarichef to Nikolski Bering Side-
346 PM AKDT Mon Aug 16 2021

.TONIGHT...E wind 20 kt. Seas 5 ft. Patchy fog.
.TUE...N wind 20 kt. Seas 6 ft. Patchy fog.
.TUE NIGHT...N wind 15 kt. Seas 5 ft. Patchy fog.
.WED...W wind 15 kt. Seas 3 ft.
.WED NIGHT...SW wind 20 kt. Seas 5 ft.
.THU...SW wind 20 kt. Seas 5 ft.
.FRI...N wind 15 kt. Seas 5 ft.
.SAT...W wind 15 kt. Seas 7 ft.

$$

PKZ171-171300-
Unalaska Bay-
346 PM AKDT Mon Aug 16 2021

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft. Patchy fog.
.TUE...N wind 10 kt. Seas 3 ft. Patchy fog.
.TUE NIGHT...N wind 10 kt. Seas 3 ft. Patchy fog.
.WED...Variable wind less than 10 kt. Seas 3 ft.
.WED NIGHT...SW wind 10 kt. Seas 2 ft.
.THU...SW wind 10 kt. Seas 3 ft.
.FRI...N wind 10 kt. Seas 3 ft.
.SAT...W wind 10 kt. Seas 3 ft.

$$

PKZ172-171300-
Cape Sarichef to Nikolski Pacific Side-
346 PM AKDT Mon Aug 16 2021

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

.TONIGHT...SW wind 25 kt. Seas 10 ft. Patchy fog.
.TUE...W wind 15 kt. Seas 10 ft. Patchy fog.
.TUE NIGHT...N wind 15 kt. Seas 8 ft. Patchy fog.
.WED...Variable wind 10 kt. Seas 6 ft.
.WED NIGHT...W wind 15 kt. Seas 6 ft.
.THU...SW wind 15 kt. Seas 6 ft.
.FRI...NE wind 15 kt. Seas 9 ft.
.SAT...W wind 15 kt. Seas 10 ft.

$$

PKZ173-171300-
Nikolski to Seguam Island Bering Side-
346 PM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NE wind 30 kt. Seas 9 ft. Patchy fog.
.TUE...N wind 20 kt. Seas 7 ft.
.TUE NIGHT...NW wind 15 kt. Seas 5 ft. Patchy fog.
.WED AND WED NIGHT...SW wind 15 kt. Seas 5 ft.
.THU...SW wind 15 kt. Seas 5 ft.
.FRI...N wind 15 kt. Seas 6 ft.
.SAT...W wind 15 kt. Seas 6 ft.

$$

PKZ174-171300-
Nikolski to Seguam Island Pacific Side-
346 PM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...SW wind 25 kt becoming NW after midnight. Seas 12 ft.
Patchy fog.
.TUE...N wind 20 kt. Seas 10 ft. Patchy fog.
.TUE NIGHT...N wind 20 kt. Seas 7 ft. Patchy fog.
.WED AND WED NIGHT...Variable wind 10 kt. Seas 5 ft.
.THU...Variable wind 10 kt. Seas 5 ft.
.FRI...N wind 20 kt. Seas 9 ft.
.SAT...W wind 15 kt. Seas 9 ft.

$$

PKZ175-171300-
Seguam Island to Adak Bering Side-
346 PM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 30 kt. Seas 8 ft.
.TUE...NW wind 20 kt in the morning becoming variable 10 kt. Seas
6 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 4 ft.
.WED AND WED NIGHT...W wind 15 kt. Seas 4 ft.
.THU THROUGH FRI...Variable wind 10 kt. Seas 4 ft.
.SAT...SW wind 20 kt. Seas 4 ft.

$$

PKZ176-171300-
Seguam Island to Adak Pacific Side-
346 PM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...NW wind 30 kt. Seas 10 ft.
.TUE...N wind 20 kt. Seas 9 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 5 ft.
.WED AND WED NIGHT...Variable wind 10 kt. Seas 5 ft.
.THU...Variable wind 10 kt. Seas 5 ft.
.FRI...NW wind 15 kt. Seas 5 ft.
.SAT...SW wind 15 kt. Seas 5 ft.

$$

PKZ177-171300-
Adak to Kiska-
346 PM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 25 kt becoming NW 15 kt after midnight. Seas 7
ft.
.TUE...NW wind 15 kt. Seas 5 ft.
.TUE NIGHT...W wind 15 kt. Seas 4 ft.
.WED AND WED NIGHT...W wind 15 kt. Seas 5 ft.
.THU THROUGH FRI...SW wind 15 kt. Seas 5 ft.
.SAT...SW wind 20 kt. Seas 6 ft.

$$

PKZ178-171300-
Kiska to Attu-
346 PM AKDT Mon Aug 16 2021

.TONIGHT...NW wind 15 kt. Seas 4 ft.
.TUE...W wind 15 kt. Seas 4 ft.
.TUE NIGHT...W wind 20 kt. Seas 5 ft.
.WED...SW wind 20 kt. Seas 5 ft.
.WED NIGHT...SW wind 15 kt. Seas 5 ft.
.THU...S wind 15 kt. Seas 5 ft.
.FRI THROUGH SAT...SW wind 20 kt. Seas 7 ft.

$$

PKZ179-171300-
Pribilof Islands Near Shore Waters-
346 PM AKDT Mon Aug 16 2021

.TONIGHT...NE wind 15 kt. Seas 5 ft.
.TUE...Variable wind 10 kt. Seas 4 ft.
.TUE NIGHT...SW wind 15 kt. Seas 5 ft.
.WED...SW wind 25 kt. Seas 5 ft.
.WED NIGHT...W wind 20 kt. Seas 6 ft.
.THU...W wind 15 kt. Seas 6 ft.
.FRI...Variable wind 10 kt. Seas 3 ft.
.SAT...Variable wind 10 kt. Seas 5 ft.

$$

PKZ180-171300-
Kuskokwim Delta and Etolin Strait-
346 PM AKDT Mon Aug 16 2021

.TONIGHT...E wind 15 kt except variable 10 kt N of Cape Newenham. 
Seas 4 ft.
.TUE...N wind 15 kt diminishing to 10 kt in the afternoon. Seas
3 ft.
.TUE NIGHT...NW wind 10 kt. Seas 2 ft.
.WED...SW wind 25 kt. Seas 4 ft.
.WED NIGHT...SW wind 30 kt. Seas 7 ft.
.THU...W wind 20 kt. Seas 7 ft.
.FRI THROUGH SAT...NW wind 15 kt. Seas 5 ft.

$$

PKZ181-171300-
North and West of Nunivak Island-
346 PM AKDT Mon Aug 16 2021

.TONIGHT...SW wind 20 kt becoming N 20 kt after midnight. Seas 5 ft.
.TUE...NE wind 15 kt. Seas 5 ft.
.TUE NIGHT...NE wind 15 kt. Seas 4 ft.
.WED...S wind 30 kt. Seas 7 ft.
.WED NIGHT...W wind 25 kt. Seas 8 ft.
.THU...NW wind 25 kt. Seas 9 ft.
.FRI...W wind 15 kt. Seas 5 ft.
.SAT...Variable wind 10 kt. Seas 3 ft.

$$

PKZ185-171300-
Saint Matthew Island Waters-
346 PM AKDT Mon Aug 16 2021

...SMALL CRAFT ADVISORY TUESDAY NIGHT...

.TONIGHT...NE wind 20 kt. Seas 5 ft.
.TUE...E wind 15 kt. Seas 5 ft.
.TUE NIGHT...SE wind 25 kt. Seas 5 ft. Rain.
.WED AND WED NIGHT...N wind 25 kt. Seas 8 ft.
.THU...W wind 25 kt. Seas 8 ft.
.FRI...S wind 15 kt. Seas 4 ft.
.SAT...Variable wind 10 kt. Seas 3 ft.

$$

724 
FZAK52 PAFC 171145
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
345 AM AKDT Tue Aug 17 2021

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.

PKZ199-180030-
345 AM AKDT Tue Aug 17 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 1003 mb low 120 nm southwest of Nikolski moves south in the 
North Pacific and weakens to 1010 mb this afternoon. Its 
associated front remains south of the Aleutians and spreads into 
the Gulf through Wed afternoon. A 1004 mb North Kamchatka low 145 
nm west of St Matthew Island Wed morning moves to 100 nm northwest
of Hooper Bay at 1003 mb Thu morning.

$$

PKZ150-180030-
South of the AK Peninsula Sitkinak to Castle Cape-
345 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SW wind 20 kt. Seas 9 ft.
.TONIGHT...SW wind 20 kt. Seas 9 ft.
.WED...W wind 15 kt. Seas 7 ft.
.WED NIGHT...SW wind 15 kt. Seas 7 ft.
.THU...W wind 20 kt. Seas 7 ft.
.FRI...W wind 15 kt. Seas 6 ft.
.SAT...S wind 20 kt. Seas 5 ft.

$$

PKZ155-180030-
South of the AK Peninsula Castle Cape to Cape Sarichef-
345 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SW wind 20 kt. Seas 9 ft. Patchy fog.
.TONIGHT...SW wind 15 kt. Seas 9 ft. Patchy fog.
.WED...Variable wind 10 kt. Seas 7 ft.
.WED NIGHT...W wind 15 kt. Seas 7 ft.
.THU...SW wind 20 kt. Seas 6 ft.
.FRI...S wind 15 kt. Seas 5 ft.
.SAT...S wind 20 kt. Seas 7 ft.

$$

PKZ160-180030-
Bristol Bay-
345 AM AKDT Tue Aug 17 2021

.TODAY...NE wind 15 kt becoming N in the afternoon. Seas 3 ft.
.TONIGHT...NW wind 10 kt. Seas 2 ft.
.WED...W wind 10 kt increasing to 15 kt in the afternoon. Seas 1 foot.
.WED NIGHT...SW wind 20 kt. Seas 2 ft.
.THU...SW wind 20 kt. Seas 6 ft.
.FRI...NW wind 15 kt. Seas 5 ft.
.SAT...E wind 15 kt. Seas 3 ft.

$$

PKZ165-180030-
Port Heiden to Cape Sarichef-
345 AM AKDT Tue Aug 17 2021

.TODAY...NE wind 20 kt. Seas 4 ft.
.TONIGHT...N wind 20 kt in the evening becoming variable 10 kt.
Seas 4 ft. Patchy fog.
.WED...Variable wind 10 kt. Seas 2 ft.
.WED NIGHT...SW wind 20 kt. Seas 4 ft.
.THU...SW wind 20 kt. Seas 6 ft.
.FRI...E wind 20 kt. Seas 4 ft.
.SAT...SE wind 15 kt. Seas 4 ft.

$$

PKZ170-180030-
Cape Sarichef to Nikolski Bering Side-
345 AM AKDT Tue Aug 17 2021

.TODAY...N wind 20 kt. Seas 6 ft. Patchy fog.
.TONIGHT...N wind 15 kt. Seas 5 ft. Patchy fog.
.WED...SW wind 15 kt. Seas 4 ft.
.WED NIGHT...SW wind 20 kt. Seas 5 ft.
.THU...SW wind 20 kt. Seas 5 ft.
.FRI...E wind 20 kt. Seas 5 ft.
.SAT...SE wind 20 kt. Seas 5 ft.

$$

PKZ171-180030-
Unalaska Bay-
345 AM AKDT Tue Aug 17 2021

.TODAY...NW wind 10 kt increasing to 20 kt in the afternoon. Seas
4 ft. Patchy fog.
.TONIGHT...NW wind 15 kt diminishing to 10 kt after midnight. Seas
3 ft. Patchy fog.
.WED...NW wind 10 kt. Seas 2 ft.
.WED NIGHT...W wind 15 kt. Seas 2 ft.
.THU...W wind 10 kt. Seas 3 ft.
.FRI...E wind 10 kt. Seas 2 ft.
.SAT...SE wind 10 kt. Seas 2 ft.

$$

PKZ172-180030-
Cape Sarichef to Nikolski Pacific Side-
345 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 20 kt. Seas 10 ft. Patchy fog.
.TONIGHT...NW wind 20 kt. Seas 8 ft. Patchy fog.
.WED...NW wind 15 kt. Seas 6 ft.
.WED NIGHT...W wind 15 kt. Seas 6 ft.
.THU...SW wind 20 kt. Seas 5 ft.
.FRI...SE wind 20 kt. Seas 7 ft.
.SAT...S wind 20 kt. Seas 7 ft.

$$

PKZ173-180030-
Nikolski to Seguam Island Bering Side-
345 AM AKDT Tue Aug 17 2021

.TODAY...N wind 20 kt. Seas 7 ft.
.TONIGHT...NW wind 15 kt. Seas 5 ft. Patchy fog.
.WED...SW wind 15 kt. Seas 4 ft. Patchy fog.
.WED NIGHT...SW wind 15 kt. Seas 5 ft.
.THU...S wind 20 kt. Seas 5 ft.
.FRI...E wind 25 kt. Seas 8 ft.
.SAT...SE wind 15 kt. Seas 7 ft.

$$

PKZ174-180030-
Nikolski to Seguam Island Pacific Side-
345 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 20 kt. Seas 9 ft. Patchy fog.
.TONIGHT...NW wind 15 kt. Seas 6 ft. Patchy fog.
.WED...Variable wind 10 kt. Seas 5 ft. Patchy fog.
.WED NIGHT...SW wind 15 kt. Seas 5 ft.
.THU THROUGH FRI...SE wind 25 kt. Seas 8 ft.
.SAT...S wind 20 kt. Seas 8 ft.

$$

PKZ175-180030-
Seguam Island to Adak Bering Side-
345 AM AKDT Tue Aug 17 2021

.TODAY...NW wind 15 kt. Seas 5 ft.
.TONIGHT...W wind 15 kt. Seas 3 ft.
.WED...SW wind 15 kt. Seas 3 ft. Patchy fog.
.WED NIGHT...W wind 15 kt. Seas 4 ft.
.THU...NW wind 20 kt. Seas 4 ft.
.FRI...NE wind 25 kt. Seas 7 ft.
.SAT...SW wind 20 kt. Seas 5 ft.

$$

PKZ176-180030-
Seguam Island to Adak Pacific Side-
345 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 20 kt. Seas 8 ft.
.TONIGHT...W wind 10 kt. Seas 5 ft.
.WED...W wind 10 kt. Seas 6 ft. Patchy fog.
.WED NIGHT...Variable wind 10 kt. Seas 5 ft.
.THU THROUGH FRI...E wind 25 kt. Seas 8 ft.
.SAT...SW wind 25 kt. Seas 8 ft.

$$

PKZ177-180030-
Adak to Kiska-
345 AM AKDT Tue Aug 17 2021

.TODAY...NW wind 15 kt. Seas 5 ft.
.TONIGHT...W wind 15 kt. Seas 5 ft.
.WED...W wind 15 kt. Seas 6 ft. Patchy fog.
.WED NIGHT...W wind 15 kt. Seas 6 ft.
.THU...NW wind 20 kt. Seas 5 ft.
.FRI...N wind 25 kt. Seas 6 ft.
.SAT...W wind 25 kt. Seas 6 ft.

$$

PKZ178-180030-
Kiska to Attu-
345 AM AKDT Tue Aug 17 2021

.TODAY...W wind 20 kt. Seas 5 ft.
.TONIGHT...W wind 20 kt. Seas 6 ft.
.WED...W wind 20 kt. Seas 6 ft. Patchy fog.
.WED NIGHT...SW wind 15 kt. Seas 5 ft.
.THU THROUGH FRI...W wind 15 kt. Seas 5 ft.
.SAT...W wind 20 kt. Seas 6 ft.

$$

PKZ179-180030-
Pribilof Islands Near Shore Waters-
345 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...Variable wind 10 kt. Seas 4 ft.
.TONIGHT...S wind 15 kt. Seas 4 ft.
.WED...SW wind 15 increasing to 25 kt in the afternoon. Seas 5 ft.
.WED NIGHT...W wind 25 kt. Seas 6 ft.
.THU...W wind 15 kt. Seas 6 ft.
.FRI THROUGH SAT...E wind 20 kt. Seas 6 ft.

$$

PKZ180-180030-
Kuskokwim Delta and Etolin Strait-
345 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...N wind 15 kt. Seas 4 ft.
.TONIGHT...NW wind 15 kt. Seas 3 ft.
.WED...SW wind 15 kt increasing to 25 kt in the afternoon. Seas 3 ft.
.WED NIGHT...SW wind 25 kt. Seas 6 ft.
.THU...W wind 20 kt. Seas 6 ft.
.FRI...E wind 15 kt. Seas 4 ft.
.SAT...E wind 20 kt. Seas 6 ft.

$$

PKZ181-180030-
North and West of Nunivak Island-
345 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...NE wind 15 kt. Seas 5 ft.
.TONIGHT...NE wind 15 kt. Seas 4 ft.
.WED...S wind 20 kt increasing to 30 kt in the afternoon. Seas 6 ft. Rain.
.WED NIGHT...SW wind 30 kt. Seas 7 ft.
.THU...W wind 25 kt. Seas 9 ft.
.FRI...S wind 15 kt. Seas 4 ft.
.SAT...E wind 20 kt. Seas 6 ft.

$$

PKZ185-180030-
Saint Matthew Island Waters-
345 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY TONIGHT AND WEDNESDAY...

.TODAY...E wind 15 kt. Seas 5 ft.
.TONIGHT...SE wind 20 kt E of Saint Matthew Island... SE 25 kt W of 
Saint Matthew Island. Seas 6 ft. Rain.
.WED...SW wind 30 kt. Seas 6 ft.
.WED NIGHT...NW wind 25 kt. Seas 6 ft.
.THU...W wind 25 kt. Seas 7 ft.
.FRI...SE wind 20 kt. Seas 5 ft.
.SAT...NE wind 15 kt. Seas 6 ft.

$$

426 
FZAK52 PAFC 171347 CCA
CWFALU

Coastal Waters Forecast...CORRECTED
National Weather Service Anchorage Alaska
547 AM AKDT Tue Aug 17 2021

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.

PKZ199-180030-
547 AM AKDT Tue Aug 17 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

Semisopochnoi Volcano which is located approximately 140 nautical
miles west of Adak has been having occasional eruptions and a 
plume of ash has been observed on nighttime microphysics satellite
imagery this morning.

A 1003 mb low 120 nm southwest of Nikolski moves south in the 
North Pacific and weakens to 1010 mb this afternoon. Its 
associated front remains south of the Aleutians and spreads into 
the Gulf through Wed afternoon. A 1004 mb North Kamchatka low 145 
nm west of St Matthew Island Wed morning moves to 100 nm northwest
of Hooper Bay at 1003 mb Thu morning.

$$

PKZ150-180030-
South of the AK Peninsula Sitkinak to Castle Cape-
547 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SW wind 20 kt. Seas 9 ft.
.TONIGHT...SW wind 20 kt. Seas 9 ft.
.WED...W wind 15 kt. Seas 7 ft.
.WED NIGHT...SW wind 15 kt. Seas 7 ft.
.THU...W wind 20 kt. Seas 7 ft.
.FRI...W wind 15 kt. Seas 6 ft.
.SAT...S wind 20 kt. Seas 5 ft.

$$

PKZ155-180030-
South of the AK Peninsula Castle Cape to Cape Sarichef-
547 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SW wind 20 kt. Seas 9 ft. Patchy fog.
.TONIGHT...SW wind 15 kt. Seas 9 ft. Patchy fog.
.WED...Variable wind 10 kt. Seas 7 ft.
.WED NIGHT...W wind 15 kt. Seas 7 ft.
.THU...SW wind 20 kt. Seas 6 ft.
.FRI...S wind 15 kt. Seas 5 ft.
.SAT...S wind 20 kt. Seas 7 ft.

$$

PKZ160-180030-
Bristol Bay-
547 AM AKDT Tue Aug 17 2021

.TODAY...NE wind 15 kt becoming N in the afternoon. Seas 3 ft.
.TONIGHT...NW wind 10 kt. Seas 2 ft.
.WED...W wind 10 kt increasing to 15 kt in the afternoon. Seas 1 foot.
.WED NIGHT...SW wind 20 kt. Seas 2 ft.
.THU...SW wind 20 kt. Seas 6 ft.
.FRI...NW wind 15 kt. Seas 5 ft.
.SAT...E wind 15 kt. Seas 3 ft.

$$

PKZ165-180030-
Port Heiden to Cape Sarichef-
547 AM AKDT Tue Aug 17 2021

.TODAY...NE wind 20 kt. Seas 4 ft.
.TONIGHT...N wind 20 kt in the evening becoming variable 10 kt.
Seas 4 ft. Patchy fog.
.WED...Variable wind 10 kt. Seas 2 ft.
.WED NIGHT...SW wind 20 kt. Seas 4 ft.
.THU...SW wind 20 kt. Seas 6 ft.
.FRI...E wind 20 kt. Seas 4 ft.
.SAT...SE wind 15 kt. Seas 4 ft.

$$

PKZ170-180030-
Cape Sarichef to Nikolski Bering Side-
547 AM AKDT Tue Aug 17 2021

.TODAY...N wind 20 kt. Seas 6 ft. Patchy fog.
.TONIGHT...N wind 15 kt. Seas 5 ft. Patchy fog.
.WED...SW wind 15 kt. Seas 4 ft.
.WED NIGHT...SW wind 20 kt. Seas 5 ft.
.THU...SW wind 20 kt. Seas 5 ft.
.FRI...E wind 20 kt. Seas 5 ft.
.SAT...SE wind 20 kt. Seas 5 ft.

$$

PKZ171-180030-
Unalaska Bay-
547 AM AKDT Tue Aug 17 2021

.TODAY...NW wind 10 kt increasing to 20 kt in the afternoon. Seas
4 ft. Patchy fog.
.TONIGHT...NW wind 15 kt diminishing to 10 kt after midnight. Seas
3 ft. Patchy fog.
.WED...NW wind 10 kt. Seas 2 ft.
.WED NIGHT...W wind 15 kt. Seas 2 ft.
.THU...W wind 10 kt. Seas 3 ft.
.FRI...E wind 10 kt. Seas 2 ft.
.SAT...SE wind 10 kt. Seas 2 ft.

$$

PKZ172-180030-
Cape Sarichef to Nikolski Pacific Side-
547 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 20 kt. Seas 10 ft. Patchy fog.
.TONIGHT...NW wind 20 kt. Seas 8 ft. Patchy fog.
.WED...NW wind 15 kt. Seas 6 ft.
.WED NIGHT...W wind 15 kt. Seas 6 ft.
.THU...SW wind 20 kt. Seas 5 ft.
.FRI...SE wind 20 kt. Seas 7 ft.
.SAT...S wind 20 kt. Seas 7 ft.

$$

PKZ173-180030-
Nikolski to Seguam Island Bering Side-
547 AM AKDT Tue Aug 17 2021

.TODAY...N wind 20 kt. Seas 7 ft.
.TONIGHT...NW wind 15 kt. Seas 5 ft. Patchy fog.
.WED...SW wind 15 kt. Seas 4 ft. Patchy fog.
.WED NIGHT...SW wind 15 kt. Seas 5 ft.
.THU...S wind 20 kt. Seas 5 ft.
.FRI...E wind 25 kt. Seas 8 ft.
.SAT...SE wind 15 kt. Seas 7 ft.

$$

PKZ174-180030-
Nikolski to Seguam Island Pacific Side-
547 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 20 kt. Seas 9 ft. Patchy fog.
.TONIGHT...NW wind 15 kt. Seas 6 ft. Patchy fog.
.WED...Variable wind 10 kt. Seas 5 ft. Patchy fog.
.WED NIGHT...SW wind 15 kt. Seas 5 ft.
.THU THROUGH FRI...SE wind 25 kt. Seas 8 ft.
.SAT...S wind 20 kt. Seas 8 ft.

$$

PKZ175-180030-
Seguam Island to Adak Bering Side-
547 AM AKDT Tue Aug 17 2021

.TODAY...NW wind 15 kt. Seas 5 ft.
.TONIGHT...W wind 15 kt. Seas 3 ft.
.WED...SW wind 15 kt. Seas 3 ft. Patchy fog.
.WED NIGHT...W wind 15 kt. Seas 4 ft.
.THU...NW wind 20 kt. Seas 4 ft.
.FRI...NE wind 25 kt. Seas 7 ft.
.SAT...SW wind 20 kt. Seas 5 ft.

$$

PKZ176-180030-
Seguam Island to Adak Pacific Side-
547 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 20 kt. Seas 8 ft.
.TONIGHT...W wind 10 kt. Seas 5 ft.
.WED...W wind 10 kt. Seas 6 ft. Patchy fog.
.WED NIGHT...Variable wind 10 kt. Seas 5 ft.
.THU THROUGH FRI...E wind 25 kt. Seas 8 ft.
.SAT...SW wind 25 kt. Seas 8 ft.

$$

PKZ177-180030-
Adak to Kiska-
547 AM AKDT Tue Aug 17 2021

.TODAY...NW wind 15 kt. Seas 5 ft.
.TONIGHT...W wind 15 kt. Seas 5 ft.
.WED...W wind 15 kt. Seas 6 ft. Patchy fog.
.WED NIGHT...W wind 15 kt. Seas 6 ft.
.THU...NW wind 20 kt. Seas 5 ft.
.FRI...N wind 25 kt. Seas 6 ft.
.SAT...W wind 25 kt. Seas 6 ft.

$$

PKZ178-180030-
Kiska to Attu-
547 AM AKDT Tue Aug 17 2021

.TODAY...W wind 20 kt. Seas 5 ft.
.TONIGHT...W wind 20 kt. Seas 6 ft.
.WED...W wind 20 kt. Seas 6 ft. Patchy fog.
.WED NIGHT...SW wind 15 kt. Seas 5 ft.
.THU THROUGH FRI...W wind 15 kt. Seas 5 ft.
.SAT...W wind 20 kt. Seas 6 ft.

$$

PKZ179-180030-
Pribilof Islands Near Shore Waters-
547 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...Variable wind 10 kt. Seas 4 ft.
.TONIGHT...S wind 15 kt. Seas 4 ft.
.WED...SW wind 15 increasing to 25 kt in the afternoon. Seas 5 ft.
.WED NIGHT...W wind 25 kt. Seas 6 ft.
.THU...W wind 15 kt. Seas 6 ft.
.FRI THROUGH SAT...E wind 20 kt. Seas 6 ft.

$$

PKZ180-180030-
Kuskokwim Delta and Etolin Strait-
547 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...N wind 15 kt. Seas 4 ft.
.TONIGHT...NW wind 15 kt. Seas 3 ft.
.WED...SW wind 15 kt increasing to 25 kt in the afternoon. Seas 3 ft.
.WED NIGHT...SW wind 25 kt. Seas 6 ft.
.THU...W wind 20 kt. Seas 6 ft.
.FRI...E wind 15 kt. Seas 4 ft.
.SAT...E wind 20 kt. Seas 6 ft.

$$

PKZ181-180030-
North and West of Nunivak Island-
547 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...NE wind 15 kt. Seas 5 ft.
.TONIGHT...NE wind 15 kt. Seas 4 ft.
.WED...S wind 20 kt increasing to 30 kt in the afternoon. Seas 6 ft. Rain.
.WED NIGHT...SW wind 30 kt. Seas 7 ft.
.THU...W wind 25 kt. Seas 9 ft.
.FRI...S wind 15 kt. Seas 4 ft.
.SAT...E wind 20 kt. Seas 6 ft.

$$

PKZ185-180030-
Saint Matthew Island Waters-
547 AM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY TONIGHT AND WEDNESDAY...

.TODAY...E wind 15 kt. Seas 5 ft.
.TONIGHT...SE wind 20 kt E of Saint Matthew Island... SE 25 kt W of 
Saint Matthew Island. Seas 6 ft. Rain.
.WED...SW wind 30 kt. Seas 6 ft.
.WED NIGHT...NW wind 25 kt. Seas 6 ft.
.THU...W wind 25 kt. Seas 7 ft.
.FRI...SE wind 20 kt. Seas 5 ft.
.SAT...NE wind 15 kt. Seas 6 ft.

$$

901 
FZAK52 PAFC 172226
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
226 PM AKDT Tue Aug 17 2021

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.

PKZ199-181145-
226 PM AKDT Tue Aug 17 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

Semisopochnoi Volcano 72 nm east of Kiska is currently active

A 1008 mb low 120 nm south of Dutch Harbor moves along the front 
and dissipates in the northern Gulf by Thu morning. A 1003 mb low 
385 nm west of St Matthew Island swings east across the northern 
Bering into Norton Sound Thu afternoon. A developing North Pacific 
low and front approaches the Central Aleutians through Thu 
afternoon.

$$

PKZ150-181145-
South of the AK Peninsula Sitkinak to Castle Cape-
226 PM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SW wind 20 kt. Seas 9 ft.
.WED...Variable wind 10 kt. Seas 7 ft.
.WED NIGHT...Variable wind 10 kt. Seas 7 ft.
.THU...W wind 15 kt. Seas 6 ft.
.THU NIGHT...W wind 20 kt. Seas 7 ft.
.FRI...W wind 15 kt. Seas 6 ft.
.SAT THROUGH SUN...SW wind 20 kt. Seas 7 ft.

$$

PKZ155-181145-
South of the AK Peninsula Castle Cape to Cape Sarichef-
226 PM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SW wind 15 kt. Seas 8 ft. Patchy fog.
.WED...Variable wind 10 kt. Seas 7 ft.
.WED NIGHT...W wind 15 kt. Seas 6 ft.
.THU...W wind 15 kt. Seas 6 ft.
.THU NIGHT...W wind 20 kt. Seas 6 ft.
.FRI THROUGH SAT...S wind 20 kt. Seas 6 ft.
.SUN...SW wind 20 kt. Seas 9 ft.

$$

PKZ160-181145-
Bristol Bay-
226 PM AKDT Tue Aug 17 2021

.TONIGHT...NW wind 10 kt. Seas 2 ft.
.WED...Variable wind less than 10 kt becoming SW 10 kt in the
afternoon. Seas 2 ft.
.WED NIGHT...SW wind 15 kt. Seas 2 ft.
.THU...SW wind 25 kt. Seas 5 ft.
.THU NIGHT...W wind 20 kt. Seas 5 ft.
.FRI...NW wind 15 kt. Seas 4 ft.
.SAT...E wind 15 kt. Seas 3 ft.
.SUN...SE wind 10 kt. Seas 3 ft.

$$

PKZ165-181145-
Port Heiden to Cape Sarichef-
226 PM AKDT Tue Aug 17 2021

.TONIGHT...N wind 15 kt. Seas 3 ft. Patchy fog.
.WED...Variable wind 10 kt. Seas 2 ft.
.WED NIGHT...SW wind 20 kt. Seas 3 ft.
.THU...SW wind 25 kt. Seas 5 ft.
.THU NIGHT...W wind 20 kt. Seas 5 ft.
.FRI...E wind 20 kt. Seas 4 ft.
.SAT...SE wind 15 kt. Seas 4 ft.
.SUN...SW wind 15 kt. Seas 4 ft.

$$

PKZ170-181145-
Cape Sarichef to Nikolski Bering Side-
226 PM AKDT Tue Aug 17 2021

.TONIGHT...N wind 15 kt. Seas 4 ft. Patchy fog.
.WED...SW wind 15 kt. Seas 3 ft.
.WED NIGHT...SW wind 20 kt. Seas 5 ft.
.THU...SW wind 20 kt. Seas 5 ft.
.THU NIGHT...S wind 15 kt. Seas 4 ft.
.FRI...SE wind 30 kt. Seas 6 ft.
.SAT...SE wind 20 kt. Seas 5 ft.
.SUN...SW wind 15 kt. Seas 5 ft.

$$

PKZ171-181145-
Unalaska Bay-
226 PM AKDT Tue Aug 17 2021

.TONIGHT...NW wind 15 kt diminishing to 10 kt after midnight. Seas
3 ft. Patchy fog.
.WED...NW wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.WED NIGHT...W wind 10 kt. Seas 2 ft.
.THU...W wind 10 kt. Seas 2 ft.
.THU NIGHT...Variable wind less than 10 kt. Seas 3 ft.
.FRI...SE wind 20 kt. Seas 3 ft.
.SAT...SE wind 10 kt. Seas 2 ft.
.SUN...SW wind 10 kt. Seas 2 ft.

$$

PKZ172-181145-
Cape Sarichef to Nikolski Pacific Side-
226 PM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 20 kt. Seas 8 ft. Patchy fog.
.WED...NW wind 15 kt. Seas 6 ft.
.WED NIGHT...W wind 15 kt. Seas 6 ft.
.THU...SW wind 15 kt. Seas 5 ft.
.THU NIGHT...S wind 20 kt. Seas 4 ft.
.FRI...SE wind 25 kt. Seas 7 ft.
.SAT...S wind 20 kt. Seas 7 ft.
.SUN...SW wind 20 kt. Seas 8 ft.

$$

PKZ173-181145-
Nikolski to Seguam Island Bering Side-
226 PM AKDT Tue Aug 17 2021

.TONIGHT...Variable wind 10 kt. Seas 5 ft. Patchy fog.
.WED...SW wind 15 kt. Seas 4 ft. Patchy fog.
.WED NIGHT...SW wind 20 kt. Seas 5 ft. Patchy fog.
.THU...SW wind 15 kt. Seas 5 ft.
.THU NIGHT...SE wind 20 kt. Seas 4 ft.
.FRI...SE wind 30 kt. Seas 9 ft.
.SAT...SE wind 15 kt. Seas 7 ft.
.SUN...W wind 15 kt. Seas 8 ft.

$$

PKZ174-181145-
Nikolski to Seguam Island Pacific Side-
226 PM AKDT Tue Aug 17 2021

.TONIGHT...NW wind 15 kt. Seas 7 ft. Patchy fog.
.WED...Variable wind 10 kt. Seas 5 ft. Patchy fog.
.WED NIGHT...Variable wind 10 kt. Seas 5 ft. Patchy fog.
.THU...Variable wind 10 kt. Seas 5 ft.
.THU NIGHT...E wind 30 kt. Seas 7 ft.
.FRI...SE wind 30 kt. Seas 12 ft.
.SAT...S wind 20 kt. Seas 8 ft.
.SUN...SW wind 25 kt. Seas 8 ft.

$$

PKZ175-181145-
Seguam Island to Adak Bering Side-
226 PM AKDT Tue Aug 17 2021

.TONIGHT...Variable wind 10 kt. Seas 3 ft.
.WED...SW wind 15 kt. Seas 3 ft. Patchy fog.
.WED NIGHT...W wind 15 kt. Seas 4 ft. Patchy fog.
.THU...Variable wind 10 kt. Seas 4 ft.
.THU NIGHT...NE wind 20 kt. Seas 4 ft.
.FRI...NE wind 30 kt. Seas 9 ft.
.SAT...SW wind 20 kt. Seas 5 ft.
.SUN...W wind 20 kt. Seas 7 ft.

$$

PKZ176-181145-
Seguam Island to Adak Pacific Side-
226 PM AKDT Tue Aug 17 2021

.TONIGHT...Variable wind 10 kt. Seas 5 ft.
.WED...Variable wind 10 kt. Seas 5 ft. Patchy fog.
.WED NIGHT...Variable wind 10 kt. Seas 5 ft. Patchy fog.
.THU...Variable wind 10 kt. Seas 5 ft.
.THU NIGHT...NE wind 30 kt. Seas 8 ft.
.FRI...E wind 30 kt. Seas 12 ft.
.SAT THROUGH SUN...W wind 25 kt. Seas 8 ft.

$$

PKZ177-181145-
Adak to Kiska-
226 PM AKDT Tue Aug 17 2021

.TONIGHT...W wind 15 kt. Seas 4 ft.
.WED...W wind 15 kt. Seas 5 ft. Patchy fog.
.WED NIGHT...W wind 15 kt. Seas 5 ft. Patchy fog.
.THU...Variable wind 10 kt. Seas 4 ft.
.THU NIGHT...N wind 20 kt. Seas 4 ft.
.FRI...N wind 25 kt. Seas 8 ft.
.SAT THROUGH SUN...W wind 25 kt. Seas 6 ft.

$$

PKZ178-181145-
Kiska to Attu-
226 PM AKDT Tue Aug 17 2021

.TONIGHT...W wind 20 kt. Seas 5 ft.
.WED...W wind 20 kt. Seas 5 ft. Patchy fog.
.WED NIGHT...SW wind 15 kt. Seas 5 ft. Patchy fog.
.THU AND THU NIGHT...SW wind 20 kt. Seas 4 ft.
.FRI...W wind 15 kt. Seas 5 ft.
.SAT THROUGH SUN...SW wind 20 kt. Seas 6 ft.

$$

PKZ179-181145-
Pribilof Islands Near Shore Waters-
226 PM AKDT Tue Aug 17 2021

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

.TONIGHT...Variable wind 10 kt becoming S 15 kt after midnight.
Seas 4 ft.
.WED...S wind 15 kt becoming SW 25 kt in the afternoon. Seas 5 ft.
.WED NIGHT...SW wind 25 kt. Seas 6 ft.
.THU...W wind 20 kt. Seas 6 ft.
.THU NIGHT...Variable wind 10 kt. Seas 5 ft.
.FRI THROUGH SAT...E wind 20 kt. Seas 6 ft.
.SUN...Variable wind 10 kt. Seas 6 ft.

$$

PKZ180-181145-
Kuskokwim Delta and Etolin Strait-
226 PM AKDT Tue Aug 17 2021

...SMALL CRAFT ADVISORY WEDNESDAY NIGHT...

.TONIGHT...N wind 15 kt becoming NW after midnight. Seas 3 ft.
.WED...W wind 10 kt becoming SW 20 kt in the afternoon. Seas 3 ft.
.WED NIGHT...SW wind 25 kt. Seas 6 ft.
.THU AND THU NIGHT...W wind 25 kt. Seas 7 ft.
.FRI...SE wind 15 kt. Seas 5 ft.
.SAT...E wind 20 kt. Seas 6 ft.
.SUN...NE wind 15 kt. Seas 6 ft.

$$

PKZ181-181145-
North and West of Nunivak Island-
226 PM AKDT Tue Aug 17 2021

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

.TONIGHT...Variable wind 10 kt. Seas 4 ft.
.WED...S wind 20 kt increasing to 30 kt in the afternoon. Seas 6
ft. Rain.
.WED NIGHT...S wind 30 kt. Seas 8 ft.
.THU...W wind 35 kt. Seas 12 ft.
.THU NIGHT...W wind 30 kt. Seas 9 ft.
.FRI...S wind 15 kt. Seas 5 ft.
.SAT...E wind 20 kt. Seas 6 ft.
.SUN...N wind 20 kt. Seas 6 ft.

$$

PKZ185-181145-
Saint Matthew Island Waters-
226 PM AKDT Tue Aug 17 2021

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

.TONIGHT...SE wind 20 kt E of Saint Matthew Island... SE 25 kt W
of Saint Matthew Island. Seas 6 ft. Rain.
.WED...W wind 30 kt. Seas 7 ft. Rain.
.WED NIGHT...NW wind 30 kt. Seas 9 ft.
.THU...W wind 30 kt. Seas 10 ft.
.THU NIGHT...SW wind 20 kt. Seas 7 ft.
.FRI...S wind 20 kt. Seas 5 ft.
.SAT...NE wind 15 kt. Seas 6 ft.
.SUN...N wind 20 kt. Seas 7 ft.

$$

520 
FZAK52 PAFC 181136
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
336 AM AKDT Wed Aug 18 2021

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.

PKZ199-190030-
336 AM AKDT Wed Aug 18 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

Semisopochnoi Volcano 72 nm east of Kiska is currently active.

A 1003 mb Bering low 230 nm west of Saint Matthew Island moves to
80 nm south of Saint Lawrence Island Thu morning and then Norton 
Sound Thu night. A 1002 mb North Pacific low moves to 315 nm 
south of Adak Fri morning.

$$

PKZ150-190030-
South of the AK Peninsula Sitkinak to Castle Cape-
336 AM AKDT Wed Aug 18 2021

.TODAY...Variable wind 10 kt. Seas 7 ft.
.TONIGHT...Variable wind 10 kt. Seas 6 ft.
.THU...W wind 15 kt. Seas 6 ft.
.THU NIGHT...W wind 20 kt. Seas 7 ft.
.FRI...W wind 20 kt. Seas 6 ft.
.SAT THROUGH SUN...S wind 20 kt. Seas 8 ft.

$$

PKZ155-190030-
South of the AK Peninsula Castle Cape to Cape Sarichef-
336 AM AKDT Wed Aug 18 2021

.TODAY...N wind 15 kt except variable 10 kt from the Shumagin
Islands E. Seas 7 ft.
.TONIGHT THROUGH THURSDAY...W wind 15 kt. Seas 6 ft.
.THU NIGHT...W wind 20 kt. Seas 6 ft.
.FRI THROUGH SAT...S wind 20 kt. Seas 6 ft.
.SUN...SW wind 20 kt. Seas 10 ft.

$$

PKZ160-190030-
Bristol Bay-
336 AM AKDT Wed Aug 18 2021

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...W wind 10 kt. Seas 2 ft.
.TONIGHT...SW wind 15 kt. Seas 2 ft.
.THU...SW wind 25 kt. Seas 6 ft.
.THU NIGHT...W wind 20 kt. Seas 6 ft.
.FRI...W wind 15 kt. Seas 4 ft.
.SAT...E wind 20 kt. Seas 4 ft.
.SUN...S wind 15 kt. Seas 4 ft.

$$

PKZ165-190030-
Port Heiden to Cape Sarichef-
336 AM AKDT Wed Aug 18 2021

...SMALL CRAFT ADVISORY TONIGHT AND THURSDAY...

.TODAY...Variable wind 10 kt. Seas 3 ft.
.TONIGHT...SW wind 15 kt increasing to 25 kt after midnight. Seas 4 ft.
.THU...SW wind 25 kt. Seas 6 ft.
.THU NIGHT...W wind 20 kt. Seas 6 ft.
.FRI...E wind 20 kt. Seas 5 ft.
.SAT...SE wind 20 kt. Seas 5 ft.
.SUN...SW wind 20 kt. Seas 4 ft.

$$

PKZ170-190030-
Cape Sarichef to Nikolski Bering Side-
336 AM AKDT Wed Aug 18 2021

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...SW wind 15 kt. Seas 3 ft.
.TONIGHT...SW wind 20 kt. Seas 5 ft.
.THU...SW wind 25 kt. Seas 6 ft.
.THU NIGHT...S wind 15 kt. Seas 4 ft.
.FRI...SE wind 25 kt. Seas 6 ft.
.SAT...S wind 20 kt. Seas 6 ft.
.SUN...SW wind 20 kt. Seas 5 ft.

$$

PKZ171-190030-
Unalaska Bay-
336 AM AKDT Wed Aug 18 2021

.TODAY...NW wind 10 kt. Seas 3 ft.
.TONIGHT...W wind 10 kt. Seas 3 ft.
.THU...Variable wind less than 10 kt becoming W 10 kt in the
afternoon. Seas 3 ft.
.THU NIGHT...E wind 10 kt. Seas 3 ft.
.FRI...SE wind 20 kt. Seas 3 ft.
.SAT...S wind 15 kt. Seas 2 ft.
.SUN...SW wind 15 kt. Seas 2 ft.

$$

PKZ172-190030-
Cape Sarichef to Nikolski Pacific Side-
336 AM AKDT Wed Aug 18 2021

.TODAY...NW wind 15 kt. Seas 6 ft.
.TONIGHT...W wind 15 kt. Seas 6 ft.
.THU...SW wind 15 kt. Seas 5 ft.
.THU NIGHT...S wind 20 kt. Seas 5 ft.
.FRI...SE wind 25 kt. Seas 7 ft.
.SAT...S wind 20 kt. Seas 10 ft.
.SUN...SW wind 25 kt. Seas 10 ft.

$$

PKZ173-190030-
Nikolski to Seguam Island Bering Side-
336 AM AKDT Wed Aug 18 2021

.TODAY...SW wind 15 kt. Seas 4 ft. Patchy fog.
.TONIGHT...SW wind 20 kt. Seas 5 ft. Patchy fog.
.THU...SW wind 15 kt. Seas 5 ft. Patchy fog.
.THU NIGHT...SE wind 20 kt. Seas 4 ft.
.FRI...SE wind 30 kt. Seas 8 ft.
.SAT...S wind 20 kt. Seas 7 ft.
.SUN...W wind 25 kt. Seas 6 ft.

$$

PKZ174-190030-
Nikolski to Seguam Island Pacific Side-
336 AM AKDT Wed Aug 18 2021

.TODAY...Variable wind 10 kt. Seas 5 ft. Patchy fog.
.TONIGHT THROUGH THURSDAY...Variable wind 10 kt. Seas 5 ft. Patchy fog.
.THU NIGHT...E wind 30 kt. Seas 7 ft.
.FRI...SE wind 30 kt. Seas 11 ft.
.SAT...S wind 25 kt. Seas 11 ft.
.SUN...W wind 25 kt. Seas 9 ft.

$$

PKZ175-190030-
Seguam Island to Adak Bering Side-
336 AM AKDT Wed Aug 18 2021

.TODAY...SW wind 15 kt. Seas 4 ft. Patchy fog.
.TONIGHT THROUGH THURSDAY...W wind 15 kt. Seas 4 ft. Patchy fog.
.THU NIGHT...E wind 20 kt. Seas 4 ft.
.FRI...E wind 30 kt. Seas 8 ft.
.SAT THROUGH SUN...W wind 20 kt. Seas 5 ft.

$$

PKZ176-190030-
Seguam Island to Adak Pacific Side-
336 AM AKDT Wed Aug 18 2021

.TODAY...W wind 10 kt. Seas 5 ft. Patchy fog.
.TONIGHT...W wind 10 kt. Seas 5 ft. Patchy fog.
.THU...Variable wind 10 kt. Seas 5 ft. Patchy fog.
.THU NIGHT...E wind 30 kt. Seas 8 ft.
.FRI...E wind 30 kt. Seas 12 ft.
.SAT THROUGH SUN...W wind 25 kt. Seas 9 ft.

$$

PKZ177-190030-
Adak to Kiska-
336 AM AKDT Wed Aug 18 2021

.TODAY...W wind 15 kt. Seas 5 ft. Patchy fog.
.TONIGHT...W wind 15 kt. Seas 5 ft. Patchy fog.
.THU...Variable wind 10 kt. Seas 4 ft. Patchy fog.
.THU NIGHT...N wind 25 kt. Seas 5 ft.
.FRI...N wind 30 kt. Seas 8 ft.
.SAT THROUGH SUN...W wind 20 kt. Seas 7 ft.

$$

PKZ178-190030-
Kiska to Attu-
336 AM AKDT Wed Aug 18 2021

.TODAY...W wind 20 kt. Seas 5 ft. Patchy fog.
.TONIGHT THROUGH THURSDAY...SW wind 20 kt. Seas 5 ft. Patchy fog.
.THU NIGHT...SW wind 20 kt. Seas 5 ft.
.FRI THROUGH SUN...W wind 15 kt. Seas 5 ft.

$$

PKZ179-190030-
Pribilof Islands Near Shore Waters-
336 AM AKDT Wed Aug 18 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SW wind 15 kt increasing to 25 kt in the afternoon. Seas 5 ft.
.TONIGHT...SW wind 25 kt. Seas 7 ft.
.THU...W wind 15 kt. Seas 6 ft.
.THU NIGHT...Variable wind 10 kt. Seas 5 ft.
.FRI...E wind 25 kt. Seas 6 ft.
.SAT...S wind 25 kt. Seas 6 ft.
.SUN...NW wind 20 kt. Seas 6 ft.

$$

PKZ180-190030-
Kuskokwim Delta and Etolin Strait-
336 AM AKDT Wed Aug 18 2021

...SMALL CRAFT ADVISORY TONIGHT AND THURSDAY...

.TODAY...W wind 10 kt becoming SW 20 kt in the afternoon. Seas 3 ft.
.TONIGHT...SW wind 30 kt. Seas 7 ft.
.THU...SW wind 25 kt. Seas 7 ft.
.THU NIGHT...W wind 25 kt. Seas 7 ft.
.FRI...S wind 20 kt. Seas 5 ft.
.SAT...E wind 25 kt. Seas 6 ft.
.SUN...S wind 20 kt. Seas 5 ft.

$$

PKZ181-190030-
North and West of Nunivak Island-
336 AM AKDT Wed Aug 18 2021

...GALE WARNING THURSDAY...

.TODAY...S wind 20 kt increasing to 30 kt in the afternoon. Seas 7 ft.
Rain.
.TONIGHT...S wind 30 kt. Seas 9 ft.
.THU...W wind 35 kt. Seas 13 ft.
.THU NIGHT...W wind 30 kt. Seas 10 ft.
.FRI...S wind 20 kt. Seas 5 ft.
.SAT...E wind 25 kt. Seas 5 ft.
.SUN...N wind 25 kt. Seas 6 ft.

$$

PKZ185-190030-
Saint Matthew Island Waters-
336 AM AKDT Wed Aug 18 2021

...GALE WARNING THURSDAY...

.TODAY...W wind 30 kt. Seas 8 ft. Rain.
.TONIGHT...NW wind 30 kt. Seas 9 ft.
.THU...W wind 35 kt E of Saint Matthew Island...NW 25 kt W of
Saint Matthew Island. Seas 10 ft.
.THU NIGHT...SW wind 20 kt. Seas 7 ft.
.FRI...S wind 20 kt. Seas 5 ft.
.SAT...NE wind 25 kt. Seas 7 ft.
.SUN...N wind 25 kt. Seas 7 ft.

$$