Small Craft Advisory 670, NWS Anchorage, AK

217 
FZAK52 PAFC 111155
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
355 AM AKDT Mon Sep 11 2017

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.

PKZ199-120100-
355 AM AKDT Mon Sep 11 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 998 mb low 180 nm West of Attu moves to 180 nm West of St Paul 
Island at 988 mb by Tue afternoon. The leading front extends over
the Eastern Aleutians while the trailing front stretches across 
the Western Aleutians through Tue afternoon. 


$$

PKZ150-120100-
South of the AK Peninsula Sitkinak to Castle Cape-
355 AM AKDT Mon Sep 11 2017

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

.TODAY...W wind 15 kt. Seas 4 ft.
.TONIGHT...SW wind 15 kt becoming SW 25 kt after midnight. Seas 5 
ft.
.TUE...S wind 30 kt. Seas 8 ft.
.TUE NIGHT...S wind 30 kt. Seas 12 ft.
.WED...S wind 30 kt. Seas 13 ft.
.THU...W wind 20 kt. Seas 8 ft.
.FRI...S wind 25 kt. Seas 12 ft.

$$

PKZ155-120100-
South of the AK Peninsula Castle Cape to Cape Sarichef-
355 AM AKDT Mon Sep 11 2017

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

.TODAY...W wind 10 kt becoming SW 20 kt in the afternoon. Seas 4 ft.
.TONIGHT...S wind 30 kt except S 25 kt from the Shumagin Islands
E. Seas 9 ft. Rain.
.TUE...S wind 30 kt. Seas 12 ft. Rain.
.TUE NIGHT...S wind 30 kt. Seas 13 ft.
.WED...SW wind 25 kt. Seas 12 ft.
.THU...SW wind 30 kt. Seas 8 ft.
.FRI...SW wind 40 kt. Seas 18 ft.

$$

PKZ160-120100-
Bristol Bay-
355 AM AKDT Mon Sep 11 2017

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

.TODAY...W wind 10 kt becoming SW 20 kt in the afternoon. Seas 3
ft.
.TONIGHT...S wind 25 kt. Seas 5 ft.
.TUE...S wind 30 kt. Seas 7 ft. Rain.
.TUE NIGHT...S wind 30 kt. Seas 7 ft.
.WED...S wind 25 kt. Seas 6 ft.
.THU...SW wind 20 kt. Seas 8 ft.
.FRI...SE wind 30 kt. Seas 6 ft.

$$

PKZ165-120100-
Port Heiden to Cape Sarichef-
355 AM AKDT Mon Sep 11 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW wind 15 kt becoming S 30 kt in the afternoon.
From Port Moller E, S wind 20 kt. Seas 4 ft. Patchy fog.
.TONIGHT...S wind 30 kt. Seas 7 ft.
.TUE...S wind 30 kt. Seas 8 ft. Rain.
.TUE NIGHT...S wind 30 kt. Seas 7 ft.
.WED...SW wind 25 kt. Seas 9 ft.
.THU...S wind 30 kt. Seas 9 ft.
.FRI...S wind 30 kt. Seas 14 ft.

$$

PKZ170-120100-
Cape Sarichef to Nikolski Bering Side-
355 AM AKDT Mon Sep 11 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...S wind 30 kt. Seas 8 ft. Patchy fog. Rain.
.TONIGHT...SW wind 30 kt. Seas 8 ft.
.TUE...S wind 25 kt. Seas 8 ft.
.TUE NIGHT...SW wind 25 kt. Seas 11 ft.
.WED...W wind 25 kt. Seas 10 ft.
.THU...S wind 35 kt. Seas 9 ft.
.FRI...W wind 45 kt. Seas 17 ft.

$$

PKZ171-120100-
Unalaska Bay-
355 AM AKDT Mon Sep 11 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...S wind 15 kt increasing to 25 kt in the afternoon. Seas
3 ft. Patchy fog. Rain.
.TONIGHT...SW wind 20 kt. Seas 3 ft.
.TUE...S wind 15 kt. Seas 2 ft.
.TUE NIGHT...SW wind 20 kt. Seas 2 ft.
.WED...W wind 20 kt. Seas 3 ft.
.THU...S wind 25 kt. Seas 4 ft.
.FRI...SW wind 35 kt. Seas 5 ft.

$$

PKZ172-120100-
Cape Sarichef to Nikolski Pacific Side-
355 AM AKDT Mon Sep 11 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...S wind 30 kt. Seas 4 ft building to 8 ft in the
afternoon. Rain.
.TONIGHT...SW wind 30 kt. Seas 10 ft. Rain.
.TUE...S wind 30 kt. Seas 11 ft. Rain.
.TUE NIGHT...SW wind 25 kt. Seas 10 ft.
.WED...W wind 20 kt. Seas 9 ft.
.THU...S wind 30 kt. Seas 11 ft.
.FRI...W wind 45 kt. Seas 16 ft.

$$

PKZ173-120100-
Nikloski to Seguam Island Bering Side-
355 AM AKDT Mon Sep 11 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...S wind increasing to 30 kt. Seas 8 ft. Rain.
.TONIGHT...SW wind 25 kt. Seas 7 ft.
.TUE...SW wind 30 kt. Seas 11 ft.
.TUE NIGHT...W wind 25 kt. Seas 12 ft.
.WED...W wind 20 kt. Seas 10 ft.
.THU...S wind 30 kt. Seas 9 ft.
.FRI...W wind 45 kt. Seas 13 ft.

$$

PKZ174-120100-
Nikolski to Seguam Island Pacific Side-
355 AM AKDT Mon Sep 11 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...S wind increasing to 30 kt. Seas 10 ft. Rain.
.TONIGHT...SW wind 20 kt. Seas 10 ft.
.TUE...SW wind 25 kt. Seas 10 ft.
.TUE NIGHT...W wind 25 kt. Seas 11 ft.
.WED...W wind 20 kt. Seas 10 ft.
.THU...S wind 30 kt. Seas 10 ft.
.FRI...W wind 45 kt. Seas 14 ft.

$$

PKZ175-120100-
Seguam Island to Adak Bering Side-
355 AM AKDT Mon Sep 11 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW wind 25 kt. Seas 7 ft.
.TONIGHT...SW wind 30 kt. Seas 9 ft.
.TUE...SW wind 30 kt. Seas 15 ft.
.TUE NIGHT...W wind 25 kt. Seas 13 ft.
.WED...SW wind 20 kt. Seas 10 ft.
.THU...SW wind 35 kt. Seas 8 ft.
.FRI...W wind 40 kt. Seas 11 ft.

$$

PKZ176-120100-
Seguam Island to Adak Pacific Side-
355 AM AKDT Mon Sep 11 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW wind 30 kt diminishing to 20 kt in the afternoon. Seas
10 ft.
.TONIGHT...SW wind 25 kt. Seas 10 ft.
.TUE...W wind 30 kt. Seas 11 ft.
.TUE NIGHT...W wind 25 kt. Seas 11 ft.
.WED...SW wind 20 kt. Seas 9 ft.
.THU...SW wind 35 kt. Seas 10 ft.
.FRI...W wind 40 kt. Seas 12 ft.

$$

PKZ177-120100-
Adak to Kiska-
355 AM AKDT Mon Sep 11 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW wind 30 kt. Seas 10 ft.
.TONIGHT...SW wind 30 kt. Seas 12 ft.
.TUE...W wind 30 kt. Seas 14 ft.
.TUE NIGHT...W wind 25 kt. Seas 12 ft.
.WED...W wind 15 kt. Seas 8 ft.
.THU THROUGH FRI...NW wind 35 kt. Seas 10 ft.

$$

PKZ178-120100-
Kiska to Attu-
355 AM AKDT Mon Sep 11 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW wind 30 kt. Seas 12 ft. Areas of fog. Rain.
.TONIGHT...W wind 30 kt. Seas 11 ft.
.TUE...NW wind 30 kt diminishing to 20 kt in the afternoon. Seas
11 ft.
.TUE NIGHT...W wind 15 kt. Seas 10 ft.
.WED...NW wind 15 kt. Seas 8 ft.
.THU THROUGH FRI...W wind 30 kt. Seas 10 ft.

$$

PKZ179-120100-
Pribilof Islands Near Shore Waters-
355 AM AKDT Mon Sep 11 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...S wind increasing to 30 kt. Seas 8 ft. Areas of fog. Rain.
.TONIGHT...SW wind 25 kt. Seas 9 ft. Rain.
.TUE...S wind 25 kt. Seas 9 ft. Rain.
.TUE NIGHT...SW wind 25 kt. Seas 11 ft.
.WED...W wind 20 kt. Seas 9 ft.
.THU...S wind 30 kt. Seas 9 ft.
.FRI...W wind 30 kt. Seas 8 ft.

$$

PKZ180-120100-
Kuskokwim Delta and Etolin Strait-
355 AM AKDT Mon Sep 11 2017

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

.TODAY...S wind 20 kt. Seas 5 ft. Patchy fog.
.TONIGHT...S wind 30 kt. Seas 9 ft. Rain.
.TUE...S wind 30 kt. Seas 8 ft. Rain.
.TUE NIGHT...S wind 30 kt. Seas 8 ft.
.WED...SW wind 25 kt. Seas 8 ft.
.THU...S wind 30 kt. Seas 9 ft.
.FRI...SE wind 35 kt. Seas 9 ft.

$$

PKZ181-120100-
North and West of Nunivak Island-
355 AM AKDT Mon Sep 11 2017

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

.TODAY...S wind 2 kt. Seas 5 ft. Patchy fog. Rain.
.TONIGHT...S wind 30 kt. Seas 8 ft. Rain.
.TUE...S wind 25 kt. Seas 9 ft. Rain.
.TUE NIGHT...S wind 20 kt. Seas 7 ft.
.WED...SW wind 20 kt. Seas 7 ft.
.THU...SW wind 30 kt. Seas 8 ft.
.FRI...E wind 30 kt. Seas 8 ft.

$$

PKZ185-120100-
Saint Matthew Island Waters-
355 AM AKDT Mon Sep 11 2017

...GALE WARNING TONIGHT...

.TODAY...SE wind increasing to 25 kt. Seas 6 ft. Areas of fog. Rain.
.TONIGHT...E of Saint Matthew Island...SE wind 30 kt becoming SW
after midnight. NE 35 kt W of Saint Matthew Island. Seas 10 ft. 
Rain.
.TUE...S wind 25 kt E of Saint Matthew Island...NE 30 kt W of
Saint Matthew Island. Seas 11 ft. Rain.
.TUE NIGHT...N wind 30 kt. Seas 10 ft.
.WED...NW wind 20 kt. Seas 9 ft.
.THU...NW wind 25 kt. Seas 9 ft.
.FRI...NE wind 30 kt. Seas 10 ft.

$$

929 
FZAK52 PAFC 112340
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
340 PM AKDT Mon Sep 11 2017

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.

PKZ199-121230-
340 PM AKDT Mon Sep 11 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 989 mb low 200 nm north of Attu will move to 125 nm west of St
Paul at 989 mb Tue afternoon and then move to 175 nm southwest of
Nome at 996 mb Wed afternoon. A weather front in the eastern 
Bering Sea will move into the western Gulf of Alaska Tue night.

$$

PKZ150-121230-
South of the AK Peninsula Sitkinak to Castle Cape-
340 PM AKDT Mon Sep 11 2017

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

.TONIGHT...SW wind 15 kt becoming S 25 kt after midnight. Seas 5 ft.
.TUE...S wind 30 kt. Seas 8 ft.
.TUE NIGHT...S wind 30 kt. Seas 12 ft. Rain.
.WED AND WED NIGHT...S wind 30 kt. Seas 13 ft.
.THU...W wind 15 kt. Seas 8 ft.
.FRI...S wind 25 kt. Seas 12 ft.
.SAT...NW wind 25 kt. Seas 14 ft.

$$

PKZ155-121230-
South of the AK Peninsula Castle Cape to Cape Sarichef-
340 PM AKDT Mon Sep 11 2017

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

.TONIGHT...S wind 30 kt except S 25 kt from the Shumagin Islands E. 
Seas 9 ft. Rain.
.TUE...S wind 35 kt. Seas 13 ft. Rain.
.TUE NIGHT...S wind 35 kt. Seas 14 ft. Rain.
.WED...SW wind 30 kt. Seas 12 ft.
.WED NIGHT...W wind 20 kt. Seas 9 ft.
.THU...SW wind 30 kt. Seas 8 ft.
.FRI...SW wind 40 kt. Seas 18 ft.
.SAT...W wind 40 kt. Seas 18 ft.

$$

PKZ160-121230-
Bristol Bay-
340 PM AKDT Mon Sep 11 2017

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

.TONIGHT...S wind 20 kt increasing to 30 kt after midnight. Seas
5 ft.
.TUE...S wind 30 kt. Seas 7 ft. Rain.
.TUE NIGHT...S wind 30 kt. Seas 8 ft. Rain.
.WED...S wind 25 kt. Seas 6 ft.
.WED NIGHT...S wind 15 kt. Seas 5 ft.
.THU...SW wind 20 kt. Seas 5 ft.
.FRI...SE wind 30 kt. Seas 6 ft.
.SAT...NE wind 15 kt. Seas 6 ft.

$$

PKZ165-121230-
Port Heiden to Cape Sarichef-
340 PM AKDT Mon Sep 11 2017

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

.TONIGHT...S wind 30 kt. Seas 7 ft.
.TUE...S wind 30 kt. Seas 8 ft. Rain.
.TUE NIGHT...S wind 30 kt. Seas 8 ft. Rain.
.WED...S wind 25 kt. Seas 8 ft.
.WED NIGHT...W wind 15 kt. Seas 7 ft.
.THU...S wind 30 kt. Seas 7 ft.
.FRI...S wind 30 kt. Seas 14 ft.
.SAT...NW wind 30 kt. Seas 16 ft.

$$

PKZ170-121230-
Cape Sarichef to Nikolski Bering Side-
340 PM AKDT Mon Sep 11 2017

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

.TONIGHT...SW wind 30 kt. Seas 7 ft.
.TUE...SW wind 30 kt. Seas 8 ft.
.TUE NIGHT...SW wind 30 kt. Seas 10 ft.
.WED...W wind 20 kt. Seas 9 ft.
.WED NIGHT...W wind 15 kt. Seas 7 ft.
.THU...S wind 35 kt. Seas 9 ft.
.FRI...W wind 45 kt. Seas 17 ft.
.SAT...NW wind 45 kt. Seas 14 ft.

$$

PKZ171-121230-
Unalaska Bay-
340 PM AKDT Mon Sep 11 2017

.TONIGHT...SW wind 20 kt. Seas 3 ft.
.TUE...S wind 15 kt. Seas 2 ft.
.TUE NIGHT...SW wind 20 kt. Seas 3 ft. Rain showers.
.WED AND WED NIGHT...W wind 15 kt. Seas 2 ft.
.THU...S wind 25 kt. Seas 4 ft.
.FRI...SW wind 35 kt. Seas 5 ft.
.SAT...NW wind 35 kt. Seas 12 ft.

$$

PKZ172-121230-
Cape Sarichef to Nikolski Pacific Side-
340 PM AKDT Mon Sep 11 2017

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

.TONIGHT...S wind 30 kt. Seas 10 ft. Rain.
.TUE...S wind 30 kt. Seas 11 ft. Rain.
.TUE NIGHT...SW wind 25 kt. Seas 10 ft.
.WED...W wind 25 kt. Seas 9 ft.
.WED NIGHT...W wind 15 kt. Seas 8 ft.
.THU...S wind 30 kt. Seas 11 ft.
.FRI THROUGH SAT...W wind 45 kt. Seas 15 ft.

$$

PKZ173-121230-
Nikloski to Seguam Island Bering Side-
340 PM AKDT Mon Sep 11 2017

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

.TONIGHT...SW wind 25 kt. Seas 7 ft.
.TUE...SW wind 30 kt. Seas 11 ft.
.TUE NIGHT...SW wind 30 kt. Seas 12 ft.
.WED...W wind 25 kt. Seas 9 ft.
.WED NIGHT...SW wind 20 kt. Seas 8 ft.
.THU...S wind 30 kt. Seas 9 ft.
.FRI THROUGH SAT...W wind 45 kt. Seas 13 ft.

$$

PKZ174-121230-
Nikolski to Seguam Island Pacific Side-
340 PM AKDT Mon Sep 11 2017

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

.TONIGHT...SW wind 25 kt. Seas 9 ft.
.TUE...SW wind 30 kt. Seas 10 ft.
.TUE NIGHT...SW wind 30 kt. Seas 11 ft.
.WED...W wind 20 kt. Seas 10 ft.
.WED NIGHT...SW wind 15 kt. Seas 8 ft.
.THU...S wind 35 kt. Seas 10 ft.
.FRI THROUGH SAT...W wind 45 kt. Seas 13 ft.

$$

PKZ175-121230-
Seguam Island to Adak Bering Side-
340 PM AKDT Mon Sep 11 2017

...GALE WARNING TUESDAY...

.TONIGHT...SW wind 30 kt. Seas 9 ft. Rain.
.TUE...SW wind 35 kt. Seas 14 ft.
.TUE NIGHT...W wind 25 kt. Seas 12 ft.
.WED...W wind 20 kt. Seas 10 ft.
.WED NIGHT...S wind 20 kt. Seas 7 ft.
.THU...S wind 35 kt. Seas 8 ft.
.FRI THROUGH SAT...W wind 40 kt. Seas 11 ft.

$$

PKZ176-121230-
Seguam Island to Adak Pacific Side-
340 PM AKDT Mon Sep 11 2017

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

.TONIGHT...SW wind 25 kt. Seas 10 ft.
.TUE...SW wind 30 kt. Seas 13 ft.
.TUE NIGHT...W wind 30 kt diminishing to 20 kt after midnight.
Seas 12 ft.
.WED...W wind 15 kt. Seas 9 ft.
.WED NIGHT...SW wind 20 kt. Seas 6 ft.
.THU...S wind 35 kt. Seas 12 ft.
.FRI THROUGH SAT...W wind 40 kt. Seas 12 ft.

$$

PKZ177-121230-
Adak to Kiska-
340 PM AKDT Mon Sep 11 2017

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...SW wind 35 kt. Seas 13 ft.
.TUE...W wind 35 kt. Seas 14 ft.
.TUE NIGHT...NW wind 25 kt becoming W 15 kt after midnight. Seas
12 ft.
.WED AND WED NIGHT...SW wind 15 kt. Seas 7 ft.
.THU THROUGH FRI...NW wind 35 kt. Seas 10 ft.
.SAT...W wind 30 kt. Seas 10 ft.

$$

PKZ178-121230-
Kiska to Attu-
340 PM AKDT Mon Sep 11 2017

...GALE WARNING TONIGHT...

.TONIGHT...W wind 35 kt. Seas 13 ft.
.TUE...NW wind 30 kt diminishing to 20 kt in the afternoon. Seas
12 ft.
.TUE NIGHT...NW wind 15 kt. Seas 11 ft.
.WED AND WED NIGHT...NW wind 15 kt. Seas 7 ft.
.THU THROUGH FRI...W wind 30 kt. Seas 10 ft.
.SAT...SW wind 25 kt. Seas 7 ft.

$$

PKZ179-121230-
Pribilof Islands Near Shore Waters-
340 PM AKDT Mon Sep 11 2017

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

.TONIGHT...SW wind 25 kt. Seas 9 ft. Rain.
.TUE...S wind 25 kt. Seas 9 ft. Rain.
.TUE NIGHT...S wind 25 kt. Seas 10 ft.
.WED...W wind 20 kt. Seas 9 ft.
.WED NIGHT...W wind 15 kt. Seas 7 ft.
.THU...S wind 30 kt. Seas 9 ft.
.FRI THROUGH SAT...NW wind 30 kt. Seas 9 ft.

$$

PKZ180-121230-
Kuskokwim Delta and Etolin Strait-
340 PM AKDT Mon Sep 11 2017

...GALE WARNING TONIGHT...

.TONIGHT...S wind 35 kt. Seas 8 ft. Periods of rain.
.TUE...S wind 30 kt. Seas 9 ft. Rain.
.TUE NIGHT...S wind 30 kt. Seas 9 ft. Rain.
.WED...S wind 25 kt. Seas 8 ft.
.WED NIGHT...SW wind 20 kt. Seas 7 ft.
.THU...SW wind 30 kt. Seas 8 ft.
.FRI...SE wind 35 kt. Seas 9 ft.
.SAT...N wind 20 kt. Seas 8 ft.

$$

PKZ181-121230-
North and West of Nunivak Island-
340 PM AKDT Mon Sep 11 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...S wind 30 kt. Seas 9 ft. Periods of rain.
.TUE...S wind 30 kt diminishing to 20 kt in the afternoon. Seas
8 ft. Rain.
.TUE NIGHT...S wind 20 kt. Seas 7 ft. Rain.
.WED...SW wind 20 kt. Seas 6 ft.
.WED NIGHT...W wind 20 kt. Seas 7 ft.
.THU...SW wind 30 kt. Seas 8 ft.
.FRI...E wind 30 kt. Seas 8 ft.
.SAT...N wind 25 kt. Seas 7 ft.

$$

PKZ185-121230-
Saint Matthew Island Waters-
340 PM AKDT Mon Sep 11 2017

...GALE WARNING TONIGHT...

.TONIGHT...SE wind 30 kt E of Saint Matthew Island... NE 35 kt W
of Saint Matthew Island. Seas 10 ft. Rain.
.TUE...E of Saint Matthew Island, S wind 30 kt diminishing to 20
kt in the afternoon. W of Saint Matthew Island, NE wind 30 kt. Seas 
11 ft. Rain.
.TUE NIGHT...E of Saint Matthew Island, S wind 15 kt becoming W
25 kt after midnight. W of Saint Matthew Island, N wind 25 kt.
Seas 10 ft. Rain.
.WED...NW wind 25 kt. Seas 9 ft.
.WED NIGHT...NW wind 15 kt. Seas 6 ft.
.THU...SE wind 25 kt. Seas 9 ft.
.FRI...NE wind 30 kt. Seas 10 ft.
.SAT...N wind 25 kt. Seas 10 ft.

$$

554 
FZAK52 PAFC 121156
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
356 AM AKDT Tue Sep 12 2017

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.

PKZ199-130100-
356 AM AKDT Tue Sep 12 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 991 mb low 150 nm north of Adak will move to 125 nm west of St 
Paul at 992 mb this afternoon and then move to 175 nm southwest 
of Nome at 995 mb Wed afternoon. A weather front in the eastern 
Bering Sea will move into the western Gulf of Alaska tonight

$$

PKZ150-130100-
South of the AK Peninsula Sitkinak to Castle Cape-
356 AM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...S wind increasing to 30 kt. Seas 9 ft.
.TONIGHT...S wind 30 kt. Seas 12 ft. Rain.
.WED...S wind 30 kt. Seas 13 ft. Rain.
.WED NIGHT...S wind 30 kt. Seas 12 ft.
.THU...SW wind 15 kt. Seas 8 ft.
.FRI...S wind 25 kt. Seas 12 ft.
.SAT...W wind 30 kt. Seas 15 ft.

$$

PKZ155-130100-
South of the AK Peninsula Castle Cape to Cape Sarichef-
356 AM AKDT Tue Sep 12 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...S wind increasing to 35 kt. Seas 12 ft. Rain.
.TONIGHT...S wind 35 kt except diminishing to 20 kt W of the Shumagin
Islands after midnight. Seas 14 ft subsiding to 9 ft after midnight.
Rain.
.WED...SW wind 20 kt. From the Shumagin Islands E, S wind 30 kt
becoming SW 20 kt in the afternoon. Seas 13 ft.
.WED NIGHT...SW wind 20 kt. Seas 9 ft.
.THU...SW wind 30 kt. Seas 9 ft.
.FRI...SW wind 30 kt. Seas 16 ft.
.SAT...W wind 40 kt. Seas 18 ft.

$$

PKZ160-130100-
Bristol Bay-
356 AM AKDT Tue Sep 12 2017

...GALE WARNING TONIGHT...

.TODAY...S wind 30 kt. Seas 7 ft. Rain.
.TONIGHT...S wind 35 kt. Seas 8 ft. Rain.
.WED...S wind 25 kt diminishing to 15 kt. Seas 7 ft.
.WED NIGHT...S wind 15 kt. Seas 5 ft.
.THU...SW wind 20 kt. Seas 5 ft.
.FRI...S wind 30 kt. Seas 6 ft.
.SAT...SW wind 20 kt. Seas 8 ft.

$$

PKZ165-130100-
Port Heiden to Cape Sarichef-
356 AM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...S wind 30 kt. Gusts to 40 kt out of bays and passes. Seas 8
ft.
.TONIGHT...S wind 30 kt. Seas 8 ft. Rain.
.WED...S wind 20 kt. Seas 8 ft.
.WED NIGHT...W wind 20 kt. Seas 7 ft.
.THU...S wind 30 kt. Seas 7 ft.
.FRI...SW wind 35 kt. Seas 15 ft.
.SAT...W wind 40 kt. Seas 20 ft.

$$

PKZ170-130100-
Cape Sarichef to Nikolski Bering Side-
356 AM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...S wind 25 kt. Seas 8 ft.
.TONIGHT...SW wind 30 kt. Seas 9 ft.
.WED...W wind 20 kt. Seas 9 ft.
.WED NIGHT...W wind 20 kt. Seas 7 ft.
.THU...S wind 35 kt. Seas 11 ft.
.FRI THROUGH SAT...W wind 45 kt. Seas 18 ft.

$$

PKZ171-130100-
Unalaska Bay-
356 AM AKDT Tue Sep 12 2017

.TODAY...S wind 15 kt. Seas 2 ft. Rain showers.
.TONIGHT...SW wind 20 kt. Seas 2 ft.
.WED...W wind 20 kt. Seas 2 ft.
.WED NIGHT...W wind 20 kt. Seas 3 ft.
.THU...S wind 30 kt. Seas 4 ft.
.FRI THROUGH SAT...W wind 35 kt. Seas 5 ft.

$$

PKZ172-130100-
Cape Sarichef to Nikolski Pacific Side-
356 AM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...S wind 30 kt. Seas 11 ft. Rain.
.TONIGHT...SW wind 25 kt. Seas 10 ft.
.WED...W wind 20 kt. Seas 10 ft.
.WED NIGHT...W wind 20 kt. Seas 9 ft.
.THU...S wind 35 kt. Seas 13 ft.
.FRI THROUGH SAT...W wind 35 kt. Seas 15 ft.

$$

PKZ173-130100-
Nikloski to Seguam Island Bering Side-
356 AM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SW wind 30 kt. Seas 10 ft.
.TONIGHT...SW wind 30 kt. Seas 11 ft.
.WED...W wind 25 kt diminishing to 15 kt in the afternoon. Seas 9 
ft.
.WED NIGHT...SW wind 20 kt. Seas 7 ft.
.THU...S wind 35 kt. Seas 13 ft.
.FRI THROUGH SAT...W wind 40 kt. Seas 17 ft.

$$

PKZ174-130100-
Nikolski to Seguam Island Pacific Side-
356 AM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SW wind increasing to 30 kt. Seas 10 ft.
.TONIGHT...SW wind 30 kt diminishing to 20 kt after midnight. Seas 
11 ft.
.WED...W wind 20 kt. Seas 10 ft.
.WED NIGHT...SW wind 20 kt. Seas 8 ft.
.THU...S wind 35 kt. Seas 14 ft.
.FRI THROUGH SAT...W wind 35 kt. Seas 14 ft.

$$

PKZ175-130100-
Seguam Island to Adak Bering Side-
356 AM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SW wind 30 kt. Seas 12 ft.
.TONIGHT...W wind 25 kt. Seas 11 ft.
.WED...W wind 20 kt. Seas 10 ft.
.WED NIGHT...S wind 20 kt. Seas 6 ft.
.THU...SW wind 40 kt. Seas 12 ft.
.FRI...W wind 40 kt. Seas 15 ft.
.SAT...W wind 35 kt. Seas 15 ft.

$$

PKZ176-130100-
Seguam Island to Adak Pacific Side-
356 AM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SW wind 30 kt. Seas 13 ft.
.TONIGHT...W wind 30 kt diminishing to 20 kt after midnight. Seas
13 ft.
.WED...W wind 20 kt diminishing to 10 kt in the afternoon. Seas 9 
ft.
.WED NIGHT...SW wind 20 kt. Seas 6 ft.
.THU...SW wind 35 kt. Seas 13 ft.
.FRI THROUGH SAT...W wind 30 kt. Seas 13 ft.

$$

PKZ177-130100-
Adak to Kiska-
356 AM AKDT Tue Sep 12 2017

...GALE WARNING TODAY...

.TODAY...W wind 35 kt. Seas 13 ft.
.TONIGHT...NW wind 25 kt becoming W 15 kt after midnight. Seas
11 ft.
.WED...SW wind 15 kt. Seas 8 ft.
.WED NIGHT...SW wind 15 kt. Seas 6 ft.
.THU THROUGH FRI...W wind 35 kt. Seas 13 ft.
.SAT...SW wind 25 kt. Seas 12 ft.

$$

PKZ178-130100-
Kiska to Attu-
356 AM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 30 kt diminishing to 20 kt in the afternoon. Seas
12 ft.
.TONIGHT...NW wind 15 kt. Seas 10 ft.
.WED...NW wind 15 kt. Seas 7 ft.
.WED NIGHT...NW wind 15 kt. Seas 6 ft.
.THU THROUGH FRI...W wind 30 kt. Seas 11 ft.
.SAT...SW wind 20 kt. Seas 8 ft.

$$

PKZ179-130100-
Pribilof Islands Near Shore Waters-
356 AM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...S wind 20 kt. Seas 9 ft. Rain.
.TONIGHT...S wind 25 kt becoming W 15 kt after midnight. Seas 9
ft. Rain showers.
.WED...NW wind 20 kt. Seas 8 ft.
.WED NIGHT...W wind 15 kt. Seas 6 ft.
.THU...S wind 35 kt. Seas 14 ft.
.FRI...W wind 35 kt. Seas 16 ft.
.SAT...NW wind 40 kt. Seas 16 ft.

$$

PKZ180-130100-
Kuskokwim Delta and Etolin Strait-
356 AM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...S wind 30 kt. Seas 8 ft. Rain.
.TONIGHT...S wind 30 kt. Seas 9 ft. Rain.
.WED...S wind 25 kt. Seas 8 ft.
.WED NIGHT...W wind 20 kt. Seas 6 ft.
.THU...SW wind 30 kt. Seas 7 ft.
.FRI...S wind 35 kt. Seas 11 ft.
.SAT...W wind 20 kt. Seas 11 ft.

$$

PKZ181-130100-
North and West of Nunivak Island-
356 AM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...S wind 30 kt diminishing to 20 kt in the afternoon. Seas
9 ft. Rain.
.TONIGHT...S wind 20 kt. Seas 8 ft. Rain.
.WED...SW wind 15 kt becoming variable 10 kt in the afternoon. Seas 
6 ft.
.WED NIGHT...NW wind 20 kt. Seas 6 ft.
.THU...S wind 30 kt. Seas 9 ft.
.FRI...SE wind 30 kt. Seas 12 ft.
.SAT...N wind 20 kt. Seas 8 ft.

$$

PKZ185-130100-
Saint Matthew Island Waters-
356 AM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt except S 20 kt E of Saint Matthew Island. Seas
11 ft.
.TONIGHT...E of Saint Matthew Island, SW wind 15 kt becoming NW
after midnight. W of Saint Matthew Island, N wind 25 kt. Seas 9
ft.
.WED...E of Saint Matthew Island, NW wind 20 kt. W of Saint
Matthew Island, NW wind 20 kt in the morning becoming variable 10 
kt. Seas 7 ft.
.WED NIGHT...SW wind 15 kt. Seas 5 ft.
.THU...SE wind 25 kt. Seas 9 ft.
.FRI...N wind 30 kt. Seas 13 ft.
.SAT...NW wind 30 kt. Seas 12 ft.

$$

316 
FZAK52 PAFC 122314
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
314 PM AKDT Tue Sep 12 2017

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.

PKZ199-131215-
314 PM AKDT Tue Sep 12 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 993 mb low 120 nm northwest of the Pribilof Islands will weaken
and move inland over the Southwest Alaska coast by Thu afternoon.
A trough of low pressure will move into the western Bering Sea 
tonight then move north toward the Bering Strait Thu. A developing
North Pacific low will move to 110 nm northwest of Adak at 985 mb
by late Thu afternoon.

$$

PKZ150-131215-
South of the AK Peninsula Sitkinak to Castle Cape-
314 PM AKDT Tue Sep 12 2017

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...S wind 25 kt increasing to 35 kt after midnight. Seas 13 
ft. Rain.
.WED...S wind 35 kt. Seas 14 ft. Rain.
.WED NIGHT...S wind 30 kt diminishing to 20 kt. Seas 13 ft. Rain.
.THU...SW wind 20 kt. Seas 9 ft.
.THU NIGHT...SW wind 15 kt. Seas 7 ft.
.FRI...S wind 30 kt. Seas 12 ft.
.SAT...W wind 35 kt. Seas 14 ft.
.SUN...NW wind 30 kt. Seas 14 ft.

$$

PKZ155-131215-
South of the AK Peninsula Castle Cape to Cape Sarichef-
314 PM AKDT Tue Sep 12 2017

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...S wind 35 kt diminishing to 20 kt after midnight. From the
Shumagin Islands E, S wind 35 kt. Seas 14 ft. Rain.
.WED...SW wind 20 kt. From the Shumagin Islands E, S wind 35 kt
becoming SW 20 kt in the afternoon. Seas 13 ft.
.WED NIGHT...SW wind 20 kt. Seas 9 ft. Rain showers.
.THU...W wind 20 kt. Seas 8 ft.
.THU NIGHT...S wind 30 kt. Seas 9 ft.
.FRI...SW wind 40 kt. Seas 15 ft.
.SAT...W wind 40 kt. Seas 17 ft.
.SUN...W wind 30 kt. Seas 16 ft.

$$

PKZ160-131215-
Bristol Bay-
314 PM AKDT Tue Sep 12 2017

...GALE WARNING TONIGHT...

.TONIGHT...S wind 35kt increasing to 25 kt after midnight. Seas 8 
ft. Rain.
.WED...S wind 25 kt decreasing to 15 kt in the afternoon. Seas 6 ft.
.WED NIGHT...S wind 15 kt. Seas 5 ft. Rain showers.
.THU...SW wind 20 kt. Seas 4 ft.
.THU NIGHT...SW wind 15 kt. Seas 5 ft.
.FRI...SE wind 35 kt. Seas 7 ft.
.SAT...NW wind 25 kt. Seas 11 ft.
.SUN...W wind 20 kt. Seas 8 ft.

$$

PKZ165-131215-
Port Heiden to Cape Sarichef-
314 PM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...S wind 30 kt. Seas 8 ft. Rain.
.WED...S wind 20 kt. Seas 8 ft.
.WED NIGHT...W wind 20 kt. Seas 7 ft. Rain showers.
.THU...W wind 20 kt. Seas 6 ft.
.THU NIGHT...S wind 30 kt. Seas 7 ft.
.FRI...S wind 45 kt. Seas 19 ft.
.SAT...W wind 40 kt. Seas 23 ft.
.SUN...W wind 30 kt. Seas 16 ft.

$$

PKZ170-131215-
Cape Sarichef to Nikolski Bering Side-
314 PM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...SW wind 25 kt. Seas 9 ft.
.WED...SW wind 20 kt. Seas 8 ft.
.WED NIGHT...NW wind 20 kt. Seas 7 ft.
.THU...S wind 25 kt. Seas 6 ft.
.THU NIGHT...S wind 35 kt. Seas 10 ft.
.FRI...W wind 50 kt. Seas 21 ft.
.SAT...W wind 45 kt. Seas 23 ft.
.SUN...W wind 25 kt. Seas 14 ft.

$$

PKZ171-131215-
Unalaska Bay-
314 PM AKDT Tue Sep 12 2017

.TONIGHT...SW wind 20 kt. Seas 2 ft.
.WED...SW wind 15 kt. Seas 2 ft. Rain showers.
.WED NIGHT...W wind 20 kt. Seas 3 ft.
.THU...S wind 20 kt. Seas 3 ft.
.THU NIGHT...S wind 35 kt. Seas 5 ft.
.FRI THROUGH SAT...W wind 40 kt. Seas 6 ft.
.SUN...W wind 20 kt. Seas 2 ft.

$$

PKZ172-131215-
Cape Sarichef to Nikolski Pacific Side-
314 PM AKDT Tue Sep 12 2017

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

.TONIGHT...SW wind 25 kt. Seas 10 ft.
.WED...SW wind 20 kt. Seas 9 ft.
.WED NIGHT...W wind 20 kt. Seas 9 ft.
.THU...S wind 25 kt. Seas 7 ft.
.THU NIGHT...S wind 35 kt. Seas 14 ft.
.FRI THROUGH SAT...W wind 40 kt. Seas 16 ft.
.SUN...W wind 30 kt. Seas 10 ft.

$$

PKZ173-131215-
Nikloski to Seguam Island Bering Side-
314 PM AKDT Tue Sep 12 2017

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

.TONIGHT...SW wind 30 kt becoming W 20 kt after midnight. Seas
10 ft.
.WED...NW wind 25 kt. Seas 10 ft.
.WED NIGHT...S wind 20 kt. Seas 8 ft.
.THU...S wind 35 kt. Seas 10 ft.
.THU NIGHT...S wind 40 kt. Seas 12 ft.
.FRI...W wind 45 kt. Seas 20 ft.
.SAT...W wind 35 kt. Seas 21 ft.
.SUN...S wind 20 kt. Seas 11 ft.

$$

PKZ174-131215-
Nikolski to Seguam Island Pacific Side-
314 PM AKDT Tue Sep 12 2017

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

.TONIGHT...SW wind 25 kt. Seas 11 ft.
.WED...W wind 25 kt. Seas 11 ft.
.WED NIGHT...W wind 15 kt. Seas 8 ft.
.THU AND THU NIGHT...S wind 40 kt. Seas 13 ft.
.FRI...W wind 40 kt. Seas 15 ft.
.SAT...W wind 35 kt. Seas 15 ft.
.SUN...S wind 20 kt. Seas 10 ft.

$$

PKZ175-131215-
Seguam Island to Adak Bering Side-
314 PM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...NW wind 25 kt. Seas 11 ft.
.WED...NW wind 25 kt becoming W 15 kt in the afternoon. Seas 10
ft.
.WED NIGHT...SW wind 20 kt. Seas 7 ft.
.THU...S wind 40 kt. Seas 9 ft.
.THU NIGHT...W wind 35 kt. Seas 13 ft.
.FRI...W wind 40 kt. Seas 17 ft.
.SAT...W wind 30 kt. Seas 17 ft.
.SUN...SE wind 15 kt. Seas 9 ft.

$$

PKZ176-131215-
Seguam Island to Adak Pacific Side-
314 PM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...W wind 30 kt. Seas 13 ft.
.WED...NW wind 20 kt. Seas 9 ft.
.WED NIGHT...S wind 20 kt. Seas 6 ft.
.THU...S wind 40 kt. Seas 14 ft.
.THU NIGHT...W wind 35 kt. Seas 15 ft.
.FRI...W wind 35 kt. Seas 13 ft.
.SAT...W wind 25 kt. Seas 11 ft.
.SUN...SE wind 15 kt. Seas 7 ft.

$$

PKZ177-131215-
Adak to Kiska-
314 PM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...NW wind 25 kt. Seas 11 ft.
.WED...W wind 15 kt. Seas 8 ft.
.WED NIGHT...SW wind 15 kt. Seas 6 ft. Rain.
.THU...NE wind 30 kt. Seas 11 ft.
.THU NIGHT...NW wind 35 kt. Seas 12 ft.
.FRI...W wind 30 kt. Seas 11 ft.
.SAT...SW wind 20 kt. Seas 10 ft.
.SUN...E wind 15 kt. Seas 8 ft.

$$

PKZ178-131215-
Kiska to Attu-
314 PM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW wind 15 kt. Seas 10 ft.
.WED...W wind 15 kt. Seas 7 ft.
.WED NIGHT...N wind 15 kt. Seas 6 ft. Rain.
.THU...N wind 25 kt. Seas 8 ft.
.THU NIGHT...NW wind 30 kt. Seas 8 ft.
.FRI...W wind 30 kt. Seas 9 ft.
.SAT...S wind 15 kt. Seas 7 ft.
.SUN...NE wind 20 kt. Seas 8 ft.

$$

PKZ179-131215-
Pribilof Islands Near Shore Waters-
314 PM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...SW wind 20 kt. Seas 9 ft.
.WED...NW wind 20 kt. Seas 8 ft.
.WED NIGHT...NW wind 15 kt. Seas 6 ft.
.THU...S wind 25 kt. Seas 8 ft.
.THU NIGHT...SE wind 40 kt. Seas 13 ft.
.FRI...W wind 50 kt. Seas 24 ft.
.SAT...NW wind 40 kt. Seas 27 ft.
.SUN...W wind 25 kt. Seas 10 ft.

$$

PKZ180-131215-
Kuskokwim Delta and Etolin Strait-
314 PM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...S wind 30 kt. Seas 8 ft. Patchy fog. Rain.
.WED...S wind 25 kt. Seas 8 ft.
.WED NIGHT...SW wind 15 kt. Seas 6 ft. Rain showers.
.THU...W wind 20 kt. Seas 5 ft.
.THU NIGHT...S wind 30 kt. Seas 7 ft.
.FRI...SE wind 40 kt. Seas 13 ft.
.SAT...NW wind 25 kt. Seas 17 ft.
.SUN...W wind 20 kt. Seas 9 ft.

$$

PKZ181-131215-
North and West of Nunivak Island-
314 PM AKDT Tue Sep 12 2017

.TONIGHT...SW wind 20 kt. Seas 7 ft. Rain.
.WED...W wind 15 kt. Seas 6 ft.
.WED NIGHT...NW wind 15 kt. Seas 5 ft.
.THU...SW wind 25 kt. Seas 5 ft.
.THU NIGHT...SE wind 30 kt. Seas 9 ft.
.FRI...E wind 35 kt. Seas 13 ft.
.SAT...NW wind 25 kt. Seas 13 ft.
.SUN...NW wind 20 kt. Seas 7 ft.

$$

PKZ185-131215-
Saint Matthew Island Waters-
314 PM AKDT Tue Sep 12 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 25 kt. Seas 8 ft.
.WED...NW wind 20 kt. Seas 7 ft.
.WED NIGHT...S wind 20 kt. Seas 6 ft.
.THU...S wind 30 kt. Seas 6 ft.
.THU NIGHT...E wind 30 kt. Seas 9 ft.
.FRI...N wind 40 kt. Seas 19 ft.
.SAT...NW wind 30 kt. Seas 19 ft.
.SUN...NW wind 20 kt. Seas 9 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
356 AM AKDT Sun Sep 10 2017

.ANALYSIS AND UPPER LEVELS...

Broad cyclonic flow continues...as an upper level low fills and
slowly drifts across the Gulf of Alaska. With a pool of cold air
aloft there is sufficient instability to trigger pockets of
convection across Southcentral...with the best nocturnal activity
apparent on the Middleton Island radar. Meanwhile upstream, there
is an amplifying upper level ridge which is keeping marine
stratus across the Bering. A low pressure system is drifting into
the Bering just to the west of Attu.

&&

.MODEL DISCUSSION...
Models remain in excellent agreement in the short term depicting
the major synoptic features. The high resolution guidance was
favored for the local winds. For pops and the shower activity
over the Anchorage Metro Area hedged towards the GFS.

&&

.AVIATION...
PANC...Showers possible today. VFR conditions and light winds
will anticipated.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
The upper level trough will remain over south central Alaska
today, and then begin to move eastward tonight. This will keep
conditions over the area fairly cloudy with some showers.
Conditions will dry out on Monday as the trough moves well east of
the area as westerly flow aloft develops, and a weak upper level
ridge builds in. This ridge is building ahead of a weather system
approaching from the west. As this system approaches on Tuesday
morning, moisture and winds will begin to increase.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3)...

A pattern change is underway for Southwest Alaska as weakening
high pressure over the Bering Sea moves into the region. However,
it appears the high pressure will not be around long as the upper
level pattern quickly amplifies over the Bering Sea today and
another potent trough moves into the region. This translates to a
decreasing shower trend over the next 24 hours before a strong
front begins to move inland Monday afternoon/evening. The upper
level trough appears to amplify enough to where it could tap into
some sub-tropical moisture which could end up bringing some pretty
impressive rainfall amounts (0.75 to 1.5 inches) to coastal
locations Tuesday and Wednesday while inland locations could see
between a half inch and an inch of rain.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3)...

A rather impressive frontal system has begun to push across the
western Bering Sea this morning with surface observations and
scatterometer data showing an increase of wind speeds across the
western Bering. A small swath of gale force winds will be seen
initially near Shemya and Attu this morning as the departing high
pressure is acting to locally enhance the pressure gradient. As
the high pressure continues to retreat eastward, a gradual
weakening trend of winds are expected. Another shot of gale force
winds will be seen late Monday night into Tuesday morning across
the western Bering Sea as cold air advection on the back side of
the surface low helps winds aloft to mix down to the surface.
Otherwise, on Tuesday, the upper level trough looks to tap into
some subtropical moisture and quickly push it into the Bering Sea.
This could bring some decent rainfall amounts to parts of the
central Bering Sea as well as some fog if this moisture gets
trapped below a capping inversion.

&&

.LONG TERM FORECAST (Days 3 through 7)...
The longwave pattern will become a bit more progressive as we head
into next week. The persistent upper level longwave trough
centered over of mainland Alaska will finally move off to the
east as a shortwave ridge builds in over central and eastern
portions of the state. The ridge will quickly be replaced by a
stout longwave trough with an associated surface low over the
west/central Bering Sea by the middle of next week. This will
usher in another round of precipitation to the state with rain
spreading from the west coast to southcentral Tuesday into
Wednesday. Rain looks to persist along the Northern Gulf Coast
through Thursday before a shortwave ridge moves in over
southcentral ahead of the next system forming in the Bering.

Long range models are in surprisingly good agreement regarding the
formation of a potentially strong low pressure system in the
Bering Sea by the end of next week. A 150 kt jet streak south of
the Aleutians will support a low pressure system that will move
northeast into the Bering. At the same time a weaker low will drop
south from the Arctic and merge with the main low. This will lead
to rapid intensification of the main low center, possibly strengthening
to storm force and moving across the central Aleutians by next
weekend.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...GALE 178.
NONE. FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...PJS
SOUTHCENTRAL ALASKA...BL
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...MC
LONG TERM...KV