Gale Warning 346, NWS Anchorage, AK

084 
FZAK52 PAFC 290000
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
400 PM AKDT Sat Apr 28 2018

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

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

PKZ199-291300-
400 PM AKDT Sat Apr 28 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 980 mb low 115 nm northeast of Shemya will move to 305 nm 
northwest of St. Paul at 970 mb Sun morning. The low will then exit 
in the northern Bering Sun night. A front approaches the western 
Aleutians Mon afternoon.

$$

PKZ150-291300-
South of the AK Peninsula Sitkinak to Castle Cape-
400 PM AKDT Sat Apr 28 2018

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 12 ft.
.SUN...S wind 25 kt becoming W 20 kt in the afternoon. Seas 9 ft. 
Rain.
.SUN NIGHT...W wind 20 kt. Seas 9 ft.
.MON...SW wind 20 kt. Seas 7 ft.
.MON NIGHT...W wind 25 kt. Seas 8 ft.
.TUE...SW wind 20 kt. Seas 9 ft.
.WED...SW wind 15 kt. Seas 9 ft.
.THU...S wind 15 kt. Seas 7 ft.

$$

PKZ155-291300-
South of the AK Peninsula Castle Cape to Cape Sarichef-
400 PM AKDT Sat Apr 28 2018

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SW wind 20 kt increasing to 30 kt after midnight. Seas
12 ft. Rain.
.SUN...SW wind 30 kt. Seas 11 ft.
.SUN NIGHT...SW wind 20 kt. Seas 10 ft.
.MON...SW wind 20 kt. Seas 8 ft.
.MON NIGHT...W wind 25 kt. Seas 9 ft.
.TUE...SW wind 25 kt. Seas 11 ft.
.WED...W wind 15 kt. Seas 10 ft.
.THU...S wind 20 kt. Seas 8 ft.

$$

PKZ160-291300-
Bristol Bay-
400 PM AKDT Sat Apr 28 2018

...SMALL CRAFT ADVISORY SUNDAY AND SUNDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas 6 ft. Patchy fog. Rain.
.SUN...SW wind 25 kt. Seas 10 ft. Rain.
.SUN NIGHT...SW wind 25 kt. Seas 12 ft.
.MON...SW wind 20 kt. Seas 9 ft.
.MON NIGHT...SW wind 25 kt. Seas 8 ft.
.TUE...SW wind 20 kt. Seas 8 ft.
.WED...SW wind 15 kt. Seas 5 ft.
.THU...SE wind 10 kt. Seas 4 ft.

$$

PKZ165-291300-
Port Heiden to Cape Sarichef-
400 PM AKDT Sat Apr 28 2018

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SW wind 20 kt becoming S 30 kt after midnight. Seas
10 ft. Rain.
.SUN...SW wind 30 kt. Seas 12 ft.
.SUN NIGHT...SW wind 25 kt. Seas 12 ft.
.MON AND MON NIGHT...W wind 25 kt. Seas 12 ft.
.TUE...SW wind 25 kt. Seas 10 ft.
.WED...W wind 15 kt. Seas 7 ft.
.THU...SE wind 15 kt. Seas 7 ft.

$$

PKZ170-291300-
Cape Sarichef to Nikolski Bering Side-
400 PM AKDT Sat Apr 28 2018

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SW wind increasing to 30 kt. Seas 12 ft. Rain.
.SUN...W wind 30 kt. Seas 13 ft.
.SUN NIGHT...SW wind 25 kt. Seas 13 ft.
.MON AND MON NIGHT...SW wind 25 kt. Seas 12 ft.
.TUE...SW wind 30 kt. Seas 10 ft.
.WED...SW wind 15 kt. Seas 8 ft.
.THU...SE wind 15 kt. Seas 6 ft.

$$

PKZ171-291300-
Unalaska Bay-
400 PM AKDT Sat Apr 28 2018

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TONIGHT...S wind 25 kt. Seas 4 ft. Rain.
.SUN...W wind 30 kt diminishing to 20 kt in the afternoon. Seas
4 ft.
.SUN NIGHT...SW wind 15 kt. Seas 2 ft.
.MON AND MON NIGHT...SW wind 20 kt. Seas 3 ft.
.TUE...SW wind 20 kt. Seas 3 ft.
.WED THROUGH THU...S wind 15 kt. Seas 2 ft.

$$

PKZ172-291300-
Cape Sarichef to Nikolski Pacific Side-
400 PM AKDT Sat Apr 28 2018

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SW wind increasing to 30 kt. Seas building to 13 ft. 
Rain.
.SUN...W wind 30 kt becoming SW 20 kt in the afternoon. Seas 13
ft.
.SUN NIGHT...SW wind 20 kt. Seas 11 ft.
.MON AND MON NIGHT...W wind 20 kt. Seas 9 ft.
.TUE...SW wind 25 kt. Seas 12 ft.
.WED THROUGH THU...SW wind 20 kt. Seas 8 ft.

$$

PKZ173-291300-
Nikolski to Seguam Island Bering Side-
400 PM AKDT Sat Apr 28 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind increasing to 35 kt. Seas building to 12 ft.
.SUN...W wind 30 kt. Seas 13 ft.
.SUN NIGHT...SW wind 25 kt. Seas 12 ft.
.MON AND MON NIGHT...SW wind 25 kt. Seas 11 ft.
.TUE...W wind 30 kt. Seas 10 ft.
.WED...S wind 15 kt. Seas 8 ft.
.THU...W wind 15 kt. Seas 6 ft.

$$

PKZ174-291300-
Nikolski to Seguam Island Pacific Side-
400 PM AKDT Sat Apr 28 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind increasing to 35 kt. Seas building to 15 ft.
.SUN...W wind 25 kt. Seas 14 ft.
.SUN NIGHT...SW wind 20 kt. Seas 13 ft.
.MON...W wind 20 kt. Seas 10 ft.
.MON NIGHT...SW wind 25 kt. Seas 10 ft.
.TUE...W wind 30 kt. Seas 12 ft.
.WED...SW wind 25 kt. Seas 10 ft.
.THU...W wind 25 kt. Seas 8 ft.

$$

PKZ175-291300-
Seguam Island to Adak Bering Side-
400 PM AKDT Sat Apr 28 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 40 kt diminishing to 30 kt after midnight. Seas
13 ft.
.SUN...SW wind 30 kt. Seas 13 ft.
.SUN NIGHT...SW wind 30 kt. Seas 11 ft.
.MON...SW wind 25 kt. Seas 11 ft.
.MON NIGHT...SW wind 30 kt. Seas 9 ft.
.TUE...W wind 30 kt. Seas 12 ft.
.WED...S wind 15 kt. Seas 7 ft.
.THU...NW wind 20 kt. Seas 7 ft.

$$

PKZ176-291300-
Seguam Island to Adak Pacific Side-
400 PM AKDT Sat Apr 28 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 35 kt. Seas building to 17 ft.
.SUN...W wind 25 kt. Seas 15 ft.
.SUN NIGHT...SW wind 25 kt. Seas 13 ft.
.MON...SW wind 25 kt. Seas 11 ft.
.MON NIGHT...SW wind 30 kt. Seas 10 ft.
.TUE...W wind 25 kt. Seas 11 ft.
.WED...SW wind 25 kt. Seas 10 ft.
.THU...W wind 25 kt. Seas 10 ft.

$$

PKZ177-291300-
Adak to Kiska-
400 PM AKDT Sat Apr 28 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 40 kt diminishing to 30 kt after midnight. Seas
18 ft.
.SUN...SW wind 30 kt. Seas 15 ft.
.SUN NIGHT...SW wind 30 kt. Seas 14 ft.
.MON...SW wind 25 kt. Seas 13 ft.
.MON NIGHT...SW wind 30 kt. Seas 11 ft.
.TUE...W wind 30 kt. Seas 11 ft.
.WED...SW wind 25 kt. Seas 9 ft.
.THU...NW wind 25 kt. Seas 10 ft.

$$

PKZ178-291300-
Kiska to Attu-
400 PM AKDT Sat Apr 28 2018

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...W wind 35 kt. Seas 16 ft.
.SUN...SW wind 35 kt. Seas 18 ft.
.SUN NIGHT...W wind 30 kt. Seas 16 ft.
.MON...SW wind 25 kt. Seas 12 ft.
.MON NIGHT...W wind 30 kt. Seas 12 ft.
.TUE...W wind 25 kt. Seas 12 ft.
.WED...SW wind 25 kt. Seas 8 ft.
.THU...NW wind 20 kt. Seas 8 ft.

$$

PKZ179-291300-
Pribilof Islands Near Shore Waters-
400 PM AKDT Sat Apr 28 2018

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...SE wind 25 kt becoming SW 35 kt after midnight. Seas
13 ft. Rain.
.SUN...SW wind 40 kt. Seas 19 ft.
.SUN NIGHT...SW wind 40 kt. Seas 19 ft. Snow.
.MON...SW wind 30 kt. Seas 15 ft.
.MON NIGHT...W wind 20 kt. Seas 12 ft.
.TUE...SW wind 15 kt. Seas 8 ft.
.WED...Variable wind 10 kt. Seas 5 ft.
.THU...Variable wind 10 kt. Seas 5 ft.

$$

PKZ180-291300-
Kuskokwim Delta and Etolin Strait-
400 PM AKDT Sat Apr 28 2018

...GALE WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...S wind 15 kt becoming SE 25 kt after midnight. Seas 8
ft. Patchy fog. Rain.
.SUN...SW wind 35 kt. Seas 13 ft.
.SUN NIGHT...SW wind 35 kt. Seas 14 ft.
.MON...SW wind 30 kt. Seas 12 ft.
.MON NIGHT...W wind 25 kt. Seas 10 ft.
.TUE...SW wind 15 kt. Seas 8 ft.
.WED...W wind 10 kt. Seas 4 ft.
.THU...E wind 10 kt. Seas 4 ft.

$$

PKZ181-291300-
North and West of Nunivak Island-
400 PM AKDT Sat Apr 28 2018

...GALE WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...E wind 15 kt in the evening increasing to 25 kt. Seas 7 
ft. Snow and rain.
.SUN...SW wind 40 kt. Seas 10 ft building to 16 ft in the
afternoon.
.SUN NIGHT...SW wind 45 kt. Seas 18 ft.
.MON...W wind 35 kt. Seas 14 ft.
.MON NIGHT...W wind 20 kt. Seas 10 ft.
.TUE...W wind 20 kt. Seas 8 ft.
.WED...Variable wind 10 kt. Seas 4 ft.
.THU...Variable wind 10 kt. Seas 3 ft.

$$

PKZ185-291300-
Saint Matthew Island Waters-
400 PM AKDT Sat Apr 28 2018

...STORM WARNING SUNDAY...

.TONIGHT...E of Saint Matthew Island, E wind 30 kt. W of Saint
Matthew Island, E wind 35 kt increasing to 45 kt after midnight.
Seas 14 ft. Snow and rain.
.SUN...W wind 50 kt. Seas 16 ft building to 22 ft in the
afternoon. Snow with rain.
.SUN NIGHT...E of Saint Matthew Island, SW wind 45 kt. W of Saint
Matthew Island, NW wind 45 kt diminishing to 30 kt after midnight.
Seas 22 ft. Snow.
.MON AND MON NIGHT...W wind 20 kt. Seas 12 ft.
.TUE...W wind 15 kt. Seas 8 ft.
.WED...Variable wind 10 kt. Seas 5 ft.
.THU...NE wind 15 kt. Seas 4 ft.

$$

098 
FZAK52 PAFC 291151
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
351 AM AKDT Sun Apr 29 2018

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

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

PKZ199-300100-
351 AM AKDT Sun Apr 29 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 971 mb low 330 nm northwest of Saint Paul moves 200 nm west of
Hooper Bay at 979 mb Sun night. The low then moves over Norton 
Sound at 988 mb Mon evening and then moves inland. A 1004 mb low 
forms 300 nm northwest of Adak Mon night.

$$

PKZ150-300100-
South of the AK Peninsula Sitkinak to Castle Cape-
351 AM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...S wind 25 kt becoming W in the afternoon. Seas 9 ft. Rain.
.TONIGHT...W wind 20 kt. Seas 9 ft.
.MON...SW wind 20 kt. Seas 7 ft.
.MON NIGHT...W wind 20 kt. Seas 7 ft.
.TUE THROUGH WED...SW wind 20 kt. Seas 8 ft.
.THU...S wind 15 kt. Seas 11 ft.

$$

PKZ155-300100-
South of the AK Peninsula Castle Cape to Cape Sarichef-
351 AM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...SW wind 30 kt. Seas 12 ft.
.TONIGHT...SW wind 20 kt. Seas 10 ft.
.MON...SW wind 20 kt. Seas 8 ft.
.MON NIGHT...W wind 20 kt. Seas 8 ft.
.TUE THROUGH WED...SW wind 20 kt. Seas 9 ft.
.THU...S wind 20 kt. Seas 13 ft.

$$

PKZ160-300100-
Bristol Bay-
351 AM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...S wind increasing to 25 kt. Seas 8 ft. Patchy fog. Rain.
.TONIGHT...SW wind 25 kt. Seas 8 ft.
.MON...SW wind 20 kt. Seas 7 ft.
.MON NIGHT...SW wind 20 kt. Seas 6 ft.
.TUE THROUGH WED...SW wind 15 kt. Seas 6 ft.
.THU...SE wind 15 kt. Seas 4 ft.

$$

PKZ165-300100-
Port Heiden to Cape Sarichef-
351 AM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...SW wind 30 kt. Seas 12 ft.
.TONIGHT...SW wind 25 kt. Seas 12 ft.
.MON...SW wind 25 kt. Seas 11 ft.
.MON NIGHT...W wind 25 kt. Seas 11 ft.
.TUE...SW wind 25 kt. Seas 8 ft.
.WED...SW wind 20 kt. Seas 8 ft.
.THU...SE wind 15 kt. Seas 7 ft.

$$

PKZ170-300100-
Cape Sarichef to Nikolski Bering Side-
351 AM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...W wind 30 kt. Seas 14 ft.
.TONIGHT...SW wind 25 kt. Seas 14 ft.
.MON...SW wind 25 kt. Seas 11 ft.
.MON NIGHT...SW wind 25 kt. Seas 10 ft.
.TUE THROUGH WED...SW wind 25 kt. Seas 8 ft.
.THU...S wind 20 kt. Seas 12 ft.

$$

PKZ171-300100-
Unalaska Bay-
351 AM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY TODAY...

.TODAY...W wind 30 kt diminishing to 20 kt in the afternoon. Seas
4 ft.
.TONIGHT...W wind 15 kt becoming SW after midnight. Seas 2 ft.
.MON...SW wind 15 kt. Seas 2 ft.
.MON NIGHT...W wind 15 kt. Seas 2 ft.
.TUE...SW wind 20 kt. Seas 3 ft.
.WED THROUGH THU...S wind 15 kt. Seas 2 ft.

$$

PKZ172-300100-
Cape Sarichef to Nikolski Pacific Side-
351 AM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...W wind 30 kt becoming SW 20 kt in the afternoon. Seas
13 ft.
.TONIGHT...SW wind 20 kt. Seas 11 ft.
.MON...W wind 20 kt. Seas 9 ft.
.MON NIGHT...W wind 20 kt. Seas 9 ft.
.TUE...SW wind 25 kt. Seas 9 ft.
.WED THROUGH THU...SW wind 20 kt. Seas 10 ft.

$$

PKZ173-300100-
Nikolski to Seguam Island Bering Side-
351 AM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...W wind 30 kt. Seas 14 ft.
.TONIGHT...SW wind 25 kt. Seas 12 ft.
.MON...SW wind 25 kt. Seas 10 ft.
.MON NIGHT...SW wind 20 kt. Seas 10 ft.
.TUE THROUGH WED...S wind 25 kt. Seas 10 ft.
.THU...W wind 20 kt. Seas 16 ft.

$$

PKZ174-300100-
Nikolski to Seguam Island Pacific Side-
351 AM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...W wind 25 kt. Seas 14 ft.
.TONIGHT...SW wind 20 kt. Seas 12 ft.
.MON...W wind 20 kt. Seas 11 ft.
.MON NIGHT...SW wind 20 kt. Seas 9 ft.
.TUE THROUGH WED...SW wind 25 kt. Seas 10 ft.
.THU...W wind 25 kt. Seas 17 ft.

$$

PKZ175-300100-
Seguam Island to Adak Bering Side-
351 AM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...SW wind 30 kt. Seas 14 ft.
.TONIGHT...SW wind 30 kt. Seas 12 ft.
.MON...W wind 25 kt. Seas 11 ft.
.MON NIGHT...SW wind 25 kt. Seas 9 ft.
.TUE...W wind 25 kt. Seas 10 ft.
.WED...SW wind 20 kt. Seas 10 ft.
.THU...NW wind 20 kt. Seas 14 ft.

$$

PKZ176-300100-
Seguam Island to Adak Pacific Side-
351 AM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...W wind 25 kt. Seas 16 ft.
.TONIGHT...SW wind 25 kt. Seas 12 ft.
.MON...W wind 20 kt. Seas 11 ft.
.MON NIGHT...SW wind 25 kt. Seas 9 ft.
.TUE THROUGH WED...SW wind 25 kt. Seas 10 ft.
.THU...W wind 25 kt. Seas 11 ft.

$$

PKZ177-300100-
Adak to Kiska-
351 AM AKDT Sun Apr 29 2018

...GALE WARNING TODAY...

.TODAY...SW wind 35 kt. Seas 15 ft.
.TONIGHT...SW wind 30 kt. Seas 14 ft.
.MON...W wind 25 kt. Seas 13 ft.
.MON NIGHT...SW wind 25 kt. Seas 10 ft.
.TUE...W wind 30 kt. Seas 10 ft.
.WED...SW wind 25 kt. Seas 9 ft.
.THU...NW wind 25 kt. Seas 10 ft.

$$

PKZ178-300100-
Kiska to Attu-
351 AM AKDT Sun Apr 29 2018

...GALE WARNING TODAY...

.TODAY...SW wind 35 kt. Seas 19 ft.
.TONIGHT...W wind 30 kt. Seas 17 ft.
.MON...S wind 25 kt. Seas 12 ft.
.MON NIGHT...SW wind 25 kt. Seas 11 ft.
.TUE...W wind 30 kt. Seas 11 ft.
.WED...SW wind 25 kt. Seas 8 ft.
.THU...NW wind 20 kt. Seas 9 ft.

$$

PKZ179-300100-
Pribilof Islands Near Shore Waters-
351 AM AKDT Sun Apr 29 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 40 kt. Seas 20 ft. Patchy fog.
.TONIGHT...SW wind 35 kt. Seas 19 ft.
.MON...SW wind 30 kt. Seas 16 ft.
.MON NIGHT...W wind 20 kt. Seas 11 ft.
.TUE THROUGH WED...S wind 25 kt. Seas 10 ft.
.THU...NE wind 15 kt. Seas 9 ft.

$$

PKZ180-300100-
Kuskokwim Delta and Etolin Strait-
351 AM AKDT Sun Apr 29 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 35 kt. Seas 12 ft. Patchy fog.
.TONIGHT...SW wind 35 kt, except 25 kt S of Cape Newenham. Seas 13 
ft.
.MON...SW wind 30 kt. Seas 12 ft.
.MON NIGHT...W wind 25 kt. Seas 10 ft.
.TUE THROUGH WED...SW wind 20 kt. Seas 7 ft.
.THU...E wind 10 kt. Seas 6 ft.

$$

PKZ181-300100-
North and West of Nunivak Island-
351 AM AKDT Sun Apr 29 2018

...GALE WARNING THROUGH MONDAY...

.TODAY...SW wind 30 kt in the morning increasing to 40 kt. Seas 15 
ft.
.TONIGHT...SW wind 40 kt. Seas 17 ft.
.MON...SW wind 35 kt diminishing to 25 kt in the afternoon. Seas 17 
ft.
.MON NIGHT...W wind 25 kt. Seas 10 ft.
.TUE...S wind 20 kt. Seas 8 ft.
.WED...S wind 15 kt. Seas 4 ft.
.THU...E wind 15 kt. Seas 4 ft.

$$

PKZ185-300100-
Saint Matthew Island Waters-
351 AM AKDT Sun Apr 29 2018

...STORM WARNING TODAY...

.TODAY...S of Saint Matthew Island, SW wind 40 kt in the morning 
increasing to 50 kt. N of Saint Matthew Island, E wind 40 kt. Seas 17
ft building to 23 ft in the afternoon. Rain and snow.
.TONIGHT...E of Saint Matthew Island, SW wind 45 kt. W of Saint
Matthew Island, NW wind 45 kt diminishing to 30 kt after midnight.
Seas 22 ft. Snow showers and rain showers.
.MON...NW wind 30 kt diminishing to 20 kt in the afternoon. Seas
15 ft.
.MON NIGHT...W wind 20 kt. Seas 11 ft.
.TUE THROUGH WED...SE wind 15 kt. Seas 6 ft.
.THU...NE wind 15 kt. Seas 5 ft.

$$

532 
FZAK52 PAFC 292359
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
359 PM AKDT Sun Apr 29 2018

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

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

PKZ199-301230-
359 PM AKDT Sun Apr 29 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 974 mb low 130 nm south of Gambell will move inland over Norton 
Sound at 985 mb Mon morning. A 1006 mb Kamchatka low will move to 
270 nm west of Shemya Mon afternoon then it will move to 215 nm 
northwest of Adak at 1010 mb Tue night.

$$

PKZ150-301230-
South of the AK Peninsula Sitkinak to Castle Cape-
359 PM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...W wind 20 kt. Seas 9 ft.
.MON...SW wind 20 kt. Seas 7 ft.
.MON NIGHT...SW wind 20 kt. Seas 7 ft.
.TUE AND TUE NIGHT...SW wind 15 kt. Seas 7 ft.
.WED...S wind 20 kt. Seas 6 ft.
.THU THROUGH FRI...SE wind 15 kt. Seas 11 ft.

$$

PKZ155-301230-
South of the AK Peninsula Castle Cape to Cape Sarichef-
359 PM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 10 ft. Patchy fog.
.MON...SW wind 15 kt. Seas 8 ft. Patchy fog.
.MON NIGHT...W wind 20 kt. Seas 8 ft.
.TUE...W wind 15 kt. Seas 7 ft.
.TUE NIGHT...SW wind 20 kt. Seas 7 ft.
.WED...S wind 25 kt. Seas 8 ft.
.THU...S wind 20 kt. Seas 13 ft.
.FRI...Variable wind 10 kt. Seas 13 ft.

$$

PKZ160-301230-
Bristol Bay-
359 PM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...SW wind 25 kt. Seas 9 ft.
.MON...SW wind 20 kt. Seas 8 ft.
.MON NIGHT...SW wind 15 kt. Seas 6 ft.
.TUE AND TUE NIGHT...SW wind 15 kt. Seas 5 ft.
.WED...SE wind 20 kt. Seas 5 ft.
.THU THROUGH FRI...E wind 15 kt. Seas 4 ft.

$$

PKZ165-301230-
Port Heiden to Cape Sarichef-
359 PM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 13 ft.
.MON...SW wind 20 kt. Seas 11 ft.
.MON NIGHT...W wind 20 kt. Seas 9 ft.
.TUE AND TUE NIGHT...SW wind 20 kt. Seas 8 ft.
.WED THROUGH THU...SE wind 20 kt. Seas 8 ft.
.FRI...Variable wind 10 kt. Seas 6 ft.

$$

PKZ170-301230-
Cape Sarichef to Nikolski Bering Side-
359 PM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 14 ft.
.MON...SW wind 20 kt. Seas 11 ft.
.MON NIGHT...W wind 20 kt. Seas 9 ft.
.TUE...SW wind 25 kt. Seas 8 ft.
.TUE NIGHT...S wind 20 kt. Seas 7 ft.
.WED...SW wind 30 kt. Seas 15 ft.
.THU...SW wind 20 kt. Seas 15 ft.
.FRI...NW wind 20 kt. Seas 12 ft.

$$

PKZ171-301230-
Unalaska Bay-
359 PM AKDT Sun Apr 29 2018

.TONIGHT...W wind 10 kt. Gusts to 25 kt. Seas 2 ft.
.MON...W wind 10 kt increasing to 15 kt in the afternoon. Seas 2
ft.
.MON NIGHT...W wind 15 kt becoming SW after midnight. Seas 2 ft.
.TUE AND TUE NIGHT...S wind 15 kt. Seas 2 ft.
.WED...SW wind 20 kt. Seas 3 ft.
.THU...SW wind 15 kt. Seas 2 ft.
.FRI...W wind 15 kt. Seas 2 ft.

$$

PKZ172-301230-
Cape Sarichef to Nikolski Pacific Side-
359 PM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 11 ft. Patchy fog.
.MON...W wind 20 kt. Seas 9 ft. Patchy fog.
.MON NIGHT...W wind 20 kt. Seas 8 ft.
.TUE...SW wind 20 kt. Seas 8 ft.
.TUE NIGHT...SW wind 25 kt. Seas 8 ft.
.WED...SW wind 25 kt. Seas 13 ft.
.THU...SW wind 20 kt. Seas 15 ft.
.FRI...W wind 20 kt. Seas 11 ft.

$$

PKZ173-301230-
Nikolski to Seguam Island Bering Side-
359 PM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 12 ft.
.MON...SW wind 25 kt. Seas 10 ft.
.MON NIGHT...W wind 20 kt. Seas 9 ft.
.TUE AND TUE NIGHT...SW wind 20 kt. Seas 7 ft.
.WED...SW wind 35 kt. Seas 17 ft.
.THU THROUGH FRI...W wind 20 kt. Seas 17 ft.

$$

PKZ174-301230-
Nikolski to Seguam Island Pacific Side-
359 PM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 12 ft.
.MON...W wind 20 kt. Seas 10 ft.
.MON NIGHT...W wind 20 kt. Seas 9 ft.
.TUE AND TUE NIGHT...SW wind 20 kt. Seas 9 ft.
.WED...SW wind 30 kt. Seas 15 ft.
.THU...W wind 25 kt. Seas 17 ft.
.FRI...W wind 20 kt. Seas 17 ft.

$$

PKZ175-301230-
Seguam Island to Adak Bering Side-
359 PM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas 11 ft.
.MON...W wind 25 kt. Seas 10 ft.
.MON NIGHT...SW wind 20 kt. Seas 9 ft.
.TUE AND TUE NIGHT...SW wind 25 kt. Seas 7 ft.
.WED...W wind 35 kt. Seas 16 ft.
.THU THROUGH FRI...W wind 20 kt. Seas 14 ft.

$$

PKZ176-301230-
Seguam Island to Adak Pacific Side-
359 PM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 12 ft.
.MON...W wind 20 kt. Seas 11 ft.
.MON NIGHT...SW wind 15 kt increasing to 25 kt after midnight.
Seas 10 ft.
.TUE...SW wind 25 kt. Seas 9 ft.
.TUE NIGHT...SW wind 30 kt. Seas 9 ft.
.WED...W wind 30 kt. Seas 13 ft.
.THU...NW wind 25 kt. Seas 11 ft.
.FRI...W wind 20 kt. Seas 11 ft.

$$

PKZ177-301230-
Adak to Kiska-
359 PM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas 14 ft.
.MON...W wind 25 kt. Seas 13 ft.
.MON NIGHT...S wind 20 kt. Seas 10 ft.
.TUE...W wind 25 kt. Seas 9 ft.
.TUE NIGHT...SW wind 30 kt. Seas 11 ft.
.WED...W wind 30 kt. Seas 12 ft.
.THU...NW wind 25 kt. Seas 10 ft.
.FRI...W wind 20 kt. Seas 10 ft.

$$

PKZ178-301230-
Kiska to Attu-
359 PM AKDT Sun Apr 29 2018

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 16 ft.
.MON...SW wind 20 kt. Seas 12 ft.
.MON NIGHT...SW wind 25 kt. Seas 9 ft.
.TUE AND TUE NIGHT...W wind 25 kt. Seas 10 ft.
.WED...W wind 25 kt. Seas 9 ft.
.THU...NW wind 20 kt. Seas 9 ft.
.FRI...SW wind 20 kt. Seas 9 ft.

$$

PKZ179-301230-
Pribilof Islands Near Shore Waters-
359 PM AKDT Sun Apr 29 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 35 kt. Gusts to 45 kt in the evening. Seas 20 ft.
Snow showers after midnight.
.MON...SW wind 25 kt. Seas 14 ft. Snow showers.
.MON NIGHT...W wind 20 kt. Seas 10 ft.
.TUE AND TUE NIGHT...S wind 15 kt. Seas 8 ft.
.WED...S wind 15 kt. Seas 9 ft.
.THU...NE wind 15 kt. Seas 9 ft.
.FRI...NW wind 20 kt. Seas 9 ft.

$$

PKZ180-301230-
Kuskokwim Delta and Etolin Strait-
359 PM AKDT Sun Apr 29 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 35 kt. Seas 14 ft.
.MON...SW wind 30 kt. Seas 12 ft.
.MON NIGHT...SW wind 20 kt. Seas 8 ft.
.TUE AND TUE NIGHT...SW wind 15 kt. Seas 6 ft.
.WED...SE wind 25 kt. Seas 5 ft.
.THU...E wind 15 kt. Seas 6 ft.
.FRI...NE wind 10 kt. Seas 6 ft.

$$

PKZ181-301230-
North and West of Nunivak Island-
359 PM AKDT Sun Apr 29 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 45 kt. Seas 22 ft.
.MON...SW wind 30 kt. Seas 13 ft.
.MON NIGHT...W wind 20 kt. Seas 9 ft. Freezing spray.
.TUE...W wind 15 kt. Seas 6 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 5 ft.
.WED...E wind 25 kt. Seas 5 ft.
.THU THROUGH FRI...N wind 15 kt. Seas 5 ft.

$$

PKZ185-301230-
Saint Matthew Island Waters-
359 PM AKDT Sun Apr 29 2018

...STORM WARNING TONIGHT...

.TONIGHT...E of Saint Matthew Island, SW wind 50 kt becoming W 35
kt after midnight. W of Saint Matthew Island, NW wind 35 kt 
diminishing to 25 kt after midnight. Seas 22 ft subsiding to 16 ft 
after midnight. Snow showers.
.MON...E of Saint Matthew Island, W wind 30 kt diminishing to 20
kt in the afternoon. W of Saint Matthew Island, NW wind 20 kt. Seas 
12 ft.
.MON NIGHT...E of Saint Matthew Island, NW wind 20 kt. W of Saint
Matthew Island, NW wind 20 kt in the evening becoming variable
10 kt. Seas 9 ft.
.TUE...SW wind 15 kt. Seas 6 ft.
.TUE NIGHT...SE wind 15 kt. Seas 5 ft.
.WED...NE wind 25 kt. Seas 7 ft.
.THU THROUGH FRI...N wind 15 kt. Seas 7 ft.

$$

315 
FZAK52 PAFC 301204
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
404 AM AKDT Mon Apr 30 2018

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

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

PKZ199-010130-
404 AM AKDT Mon Apr 30 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 981 mb low over Norton Sound moves inland this morning. A 1009
mb low 60 nm northwest of Shemya tonight moves 130 nm west of
Saint Paul Tue night at 1004 mb.

$$

PKZ150-010130-
South of the AK Peninsula Sitkinak to Castle Cape-
404 AM AKDT Mon Apr 30 2018

.TODAY...SW wind 20 kt. Seas 7 ft.
.TONIGHT...SW wind 20 kt. Seas 7 ft.
.TUE...NW wind 15 kt. Seas 6 ft.
.TUE NIGHT...W wind 15 kt. Seas 6 ft.
.WED...S wind 25 kt. Seas 7 ft.
.THU...S wind 20 kt. Seas 11 ft.
.FRI...SE wind 15 kt. Seas 11 ft.

$$

PKZ155-010130-
South of the AK Peninsula Castle Cape to Cape Sarichef-
404 AM AKDT Mon Apr 30 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SW wind 15 kt. Seas 8 ft. Patchy fog.
.TONIGHT...W wind 20 kt. Seas 8 ft.
.TUE...W wind 15 kt. Seas 7 ft.
.TUE NIGHT...SW wind 20 kt. Seas 7 ft.
.WED...SW wind 25 kt. Seas 9 ft.
.THU...S wind 20 kt. Seas 13 ft.
.FRI...S wind 15 kt. Seas 13 ft.

$$

PKZ160-010130-
Bristol Bay-
404 AM AKDT Mon Apr 30 2018

...SMALL CRAFT ADVISORY TODAY...

.TODAY...SW wind 20 kt. Seas 8 ft.
.TONIGHT...SW wind 15 kt. Seas 6 ft.
.TUE...W wind 15 kt. Seas 5 ft.
.TUE NIGHT...SW wind 15 kt. Seas 5 ft.
.WED...S wind 25 kt. Seas 5 ft.
.THU THROUGH FRI...E wind 15 kt. Seas 4 ft.

$$

PKZ165-010130-
Port Heiden to Cape Sarichef-
404 AM AKDT Mon Apr 30 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW wind 20 kt. Seas 11 ft.
.TONIGHT...W wind 20 kt. Seas 9 ft.
.TUE...W wind 20 kt. Seas 8 ft.
.TUE NIGHT...SW wind 20 kt. Seas 7 ft.
.WED...S wind 25 kt. Seas 8 ft.
.THU...SE wind 25 kt. Seas 9 ft.
.FRI...N wind 20 kt. Seas 12 ft.

$$

PKZ170-010130-
Cape Sarichef to Nikolski Bering Side-
404 AM AKDT Mon Apr 30 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW wind 20 kt. Seas 11 ft.
.TONIGHT...W wind 20 kt. Seas 9 ft.
.TUE...SW wind 20 kt. Seas 8 ft.
.TUE NIGHT...S wind 20 kt. Seas 7 ft.
.WED...SW wind 30 kt. Seas 9 ft.
.THU...SW wind 25 kt. Seas 14 ft.
.FRI...NW wind 20 kt. Seas 14 ft.

$$

PKZ171-010130-
Unalaska Bay-
404 AM AKDT Mon Apr 30 2018

.TODAY...W wind 10 kt increasing to 15 kt in the afternoon. Seas
2 ft.
.TONIGHT...W wind 15 kt. Seas 2 ft.
.TUE...SW wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.TUE NIGHT...S wind 15 kt. Seas 2 ft.
.WED...SW wind 25 kt. Seas 4 ft.
.THU...SW wind 20 kt. Seas 3 ft.
.FRI...W wind 15 kt. Seas 5 ft.

$$

PKZ172-010130-
Cape Sarichef to Nikolski Pacific Side-
404 AM AKDT Mon Apr 30 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...W wind 20 kt. Seas 9 ft. Patchy fog.
.TONIGHT...W wind 20 kt. Seas 8 ft.
.TUE...SW wind 20 kt. Seas 8 ft.
.TUE NIGHT...SW wind 25 kt. Seas 8 ft.
.WED...SW wind 30 kt. Seas 10 ft.
.THU...SW wind 25 kt. Seas 15 ft.
.FRI...W wind 25 kt. Seas 11 ft.

$$

PKZ173-010130-
Nikolski to Seguam Island Bering Side-
404 AM AKDT Mon Apr 30 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SW wind 25 kt. Seas 10 ft.
.TONIGHT...W wind 20 kt. Seas 9 ft.
.TUE...SW wind 20 kt. Seas 7 ft.
.TUE NIGHT...SW wind 20 kt. Seas 7 ft.
.WED...W wind 30 kt. Seas 9 ft.
.THU THROUGH FRI...NW wind 25 kt. Seas 17 ft.

$$

PKZ174-010130-
Nikolski to Seguam Island Pacific Side-
404 AM AKDT Mon Apr 30 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...W wind 20 kt. Seas 10 ft.
.TONIGHT...W wind 20 kt. Seas 9 ft.
.TUE...SW wind 20 kt. Seas 8 ft.
.TUE NIGHT...SW wind 25 kt. Seas 9 ft.
.WED...W wind 25 kt. Seas 10 ft.
.THU THROUGH FRI...W wind 25 kt. Seas 17 ft.

$$

PKZ175-010130-
Seguam Island to Adak Bering Side-
404 AM AKDT Mon Apr 30 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...W wind 25 kt. Seas 10 ft.
.TONIGHT...SW wind 20 kt. Seas 9 ft.
.TUE...SW wind 20 kt. Seas 6 ft.
.TUE NIGHT...SW wind 25 kt. Seas 7 ft.
.WED...W wind 25 kt. Seas 9 ft.
.THU...NW wind 20 kt. Seas 14 ft.
.FRI...W wind 25 kt. Seas 14 ft.

$$

PKZ176-010130-
Seguam Island to Adak Pacific Side-
404 AM AKDT Mon Apr 30 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...W wind 20 kt. Seas 11 ft.
.TONIGHT...SW wind 20 kt. Seas 10 ft.
.TUE...SW wind 20 kt. Seas 8 ft.
.TUE NIGHT...SW wind 25 kt. Seas 10 ft.
.WED THROUGH FRI...W wind 25 kt. Seas 10 ft.

$$

PKZ177-010130-
Adak to Kiska-
404 AM AKDT Mon Apr 30 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...W wind 25 kt. Seas 13 ft.
.TONIGHT...S wind 20 kt. Seas 10 ft.
.TUE...SW wind 25 kt. Seas 9 ft.
.TUE NIGHT...W wind 25 kt. Seas 10 ft.
.WED THROUGH THU...NW wind 25 kt. Seas 10 ft.
.FRI...W wind 20 kt. Seas 10 ft.

$$

PKZ178-010130-
Kiska to Attu-
404 AM AKDT Mon Apr 30 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW wind 20 kt. Seas 12 ft.
.TONIGHT...SW wind 25 kt. Seas 9 ft.
.TUE...W wind 25 kt. W of Shemya, W wind 20 kt diminishing to 10 kt 
in the afternoon. Seas 9 ft.
.TUE NIGHT...W wind 20 kt. Seas 9 ft.
.WED THROUGH THU...NW wind 20 kt. Seas 9 ft.
.FRI...SW wind 20 kt. Seas 9 ft.

$$

PKZ179-010130-
Pribilof Islands Near Shore Waters-
404 AM AKDT Mon Apr 30 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW wind 25 kt. Seas 14 ft. Snow showers.
.TONIGHT...W wind 20 kt. Seas 10 ft.
.TUE...W wind less than 10 kt in the morning becoming S 15 kt. Seas 
8 ft.
.TUE NIGHT...S wind 15 kt. Seas 6 ft.
.WED...SW wind 20 kt. Seas 6 ft.
.THU...N wind 20 kt. Seas 9 ft.
.FRI...NW wind 20 kt. Seas 10 ft.

$$

PKZ180-010130-
Kuskokwim Delta and Etolin Strait-
404 AM AKDT Mon Apr 30 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SW wind 30 kt. Seas 12 ft.
.TONIGHT...SW wind 20 kt. Seas 8 ft.
.TUE...W wind 15 kt. Seas 6 ft.
.TUE NIGHT...SW wind 15 kt. Seas 6 ft.
.WED...SE wind 25 kt. Seas 6 ft.
.THU...E wind 20 kt. Seas 6 ft.
.FRI...NE wind 15 kt. Seas 6 ft.

$$

PKZ181-010130-
North and West of Nunivak Island-
404 AM AKDT Mon Apr 30 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SW wind 30 kt. Seas 13 ft.
.TONIGHT...W wind 20 kt. Seas 9 ft.
.TUE...W wind 15 kt . Seas 6 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 5 ft.
.WED THROUGH THU...NE wind 25 kt. Seas 6 ft.
.FRI...N wind 15 kt. Seas 6 ft.

$$

PKZ185-010130-
Saint Matthew Island Waters-
404 AM AKDT Mon Apr 30 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...E of Saint Matthew Island, W wind 30 kt diminishing to
20 kt in the afternoon. W of Saint Matthew Island, NW wind 20 kt.
Seas 12 ft.
.TONIGHT...E of Saint Matthew Island, NW wind 20 kt. W of Saint
Matthew Island, NW wind 20 diminishing to 10 kt after midnight. Seas
9 ft.
.TUE...E of Saint Matthew Island, W wind 15 kt. W of Saint Matthew
Island, variable wind 10 kt. Seas 7 ft.
.TUE NIGHT...SE wind 15 kt. Seas 5 ft.
.WED...NE wind 30 kt. Seas 6 ft.
.THU...N wind 25 kt. Seas 7 ft.
.FRI...N wind 15 kt. Seas 6 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
501 PM AKDT Fri Apr 27 2018

.ANALYSIS AND UPPER LEVELS...
The fairly active weather pattern continues over southern Alaska
and the Bering Sea. There is a negatively tilted upper level
trough stretching from the northern Gulf to Norton Sound. This is
bringing precipitation to much of southern Alaska, mainly in the
higher terrain and areas near the coast. There is an upper level
low over the west central Bering Sea that is rapidly moving east.
The associated front is roughly situated from the Pribilofs
through the eastern Aleutians. Some ridging is evident over the
southwest Bering and western Aleutians. Another weather system is
spinning up well to the southwest of the western Aleutians, moving
rapidly to the northeast.

&&

.MODEL DISCUSSION...
The numerical models are in reasonable agreement for the short
term portion of the forecast (Sunday afternoon). The notable
exception is the ECMWF on Sunday. Most models take a surface low
across the Bering from southwest to northeast, bringing it near
the Yukon Delta Sunday afternoon. The ECMWF, however, takes it
almost strait north, with it centered near 60 degrees north
latitude and 180 degrees longitude. For now a solution more in
line with the GFS and Nam was preferred. Forecast confidence is
thus a little below normal.

&&

.AVIATION...
PANC...Generally VFR conditions will continue into Saturday with
some occasional MVFR conditions possible this evening and then
again Saturday afternoon through evening. This should be brief if
it does occur. Breezy southerly winds will diminish late this
evening, then increase again Saturday afternoon.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
Rinse and repeat, or should I say wind and repeat? The weekend
looks very familiar with several systems that will bring breezy
conditions across town. The unstable air mass aloft, responsible
for showers the past couple days will be moving out this evening
as the upper trough pushes to the east ending the shower activity
across the Cook Inlet region first, lingering a bit longer along
the north Gulf coast. Some of the more intense showers may mix
with or change to snow. Saturday brings a more stable air mass, so
no chance for the convective snow showers that we've been seeing.
The main concern will be continued gusty winds. Winds will peak
both Saturday afternoon and Sunday afternoon, however, nothing
like our previous wind storm. Gusts should peak into the 40s at
the higher elevations on Saturday and 50s on Sunday as well. Down
at lower elevations, gusts aren't expected to get out of the 30s.
Light rain will accompany each system, with Sunday being a bit
more moist that Saturday. Snow snow is possible during the
overnight hours, but daytime temperatures will be warm enough to
support rain. The progressive pattern continues into early next
week. Expect breezy afternoon conditions, mostly cloudy skies, and
high temperatures in the upper 40's.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2: Saturday and
Sunday)...
A series of three disturbances will move across the area through
the short-term portion of the forecast. The first disturbance has
mostly cleared the area already, but is still setting off
scattered to numerous rain and snow showers across the Lower
Kuskokwim Valley and the Alaska Range mountains. This disturbance
will clear the area to the north tonight.

The second disturbance is following very close on the heels of the
first, with high clouds already overspreading the Kuskokwim Delta
and Bristol Bay regions. The disturbance is being aided by a
pocket of colder air aloft. That along with the associated
precipitation falling during the coldest time of day should mean
most areas away from the coast see mostly snow overnight as it
moves through. Fortunately, the disturbance is also fast-moving,
and will be past the area by Saturday afternoon. Most locations
can expect anywhere from a trace (near the coast where a mix with
rain is expected), to 2 inches of new accumulation (higher
elevations of the Lower Kuskokwim Valley). The westerly winds
behind the disturbance may keep mountain snow showers continuing
into the late afternoon on Saturday.

Finally, disturbance number three begins moving into Southwest
Alaska from the Bering after midnight Saturday night. Unlike the
previous two, this disturbance will have much more warm air with
it, as the cold air stays north and west over the Bering. Thus,
precipitation-type issues should only be a factor over the
mountains. The heaviest rain with this disturbance are expected
Sunday morning. It too will quickly slide across the area, with
most of the associated precipitation over with in the eastern
parts of the area before nightfall. Sunday night should be
relatively quiet with the exception that continued south to
southwest winds will keep mountain snow showers ongoing right
through Monday.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2: Saturday
and Sunday)...
The Bering forecast is following the same disturbances mentioned
in the Southwest forecast. Disturbance two is currently moving
into the eastern Bering, and will move into Southwest Alaska
tonight. The third disturbance quickly moves into the western
Bering and Aleutians Saturday morning, reaches the eastern Bering
Saturday night, then moves into Southwest Alaska. South and east
of the parent low, which tracks from the western Bering to the
northern Bering by Sunday morning, sustained winds well into gale
force, with storm force gusts are expected. This very progressive
pattern should result in highly changeable weather through
Saturday night. On Sunday behind disturbance three, another upper
level low moves into the western Bering on Sunday afternoon. That
will keep the strong westerly winds ongoing over much of the
Bering into Sunday night.

&&

.LONG TERM FORECAST (Days 3 through 7)...
Beginning Tuesday and Wednesday, a slow pattern shift begins to
evolve in the upper level jet stream, initially a ridge amplifies
across the Alcan border with troughing across the north Pacific
and Aleutian Chain. This jet stream shift cuts off the mid level
low over the northwest mainland, which weakens in response as it
slowly spins along the Brooks Range. Models are all in descent
agreement with a slow progressive change of the jet stream through
the end of the week; however, there are significant differences
between the low and mid level dynamics which lead to less
confidence in the extended forecast through the end of next week.
Overall, the storm tracks are expected to move at a slower pace
the the current pattern as amplified ridging separates each
system. Also, storm systems are expected to track along or just
south of the Aleutian Chain as the jet stream migrates further
south.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Gale 150 155 165 170 172-179.

&&

SYNOPSIS AND MODEL DISCUSSION...BL
SOUTHCENTRAL ALASKA...MTL
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...JW
LONG TERM...KH