Alert archive / Alaska / Storm Warnings in 2017

Storm Warning 139, NWS Anchorage, AK

November 18, 2017

NWS Anchorage, AK issued this storm warning at Nov 18, 2017, 3:38 PM AKST. It was in force for 36 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Nov 18, 2017, 3:38 PM AKST (00:38 UTC)
Expired
Nov 20, 2017, 3:51 AM AKST
In force
36 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

542 
FZAK51 PAFC 190038
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
338 PM AKST Sat Nov 18 2017

Coastal Waters Forecast for the Northern Gulf of Alaska Coast
up to 100 nm out including Kodiak Island and Cook Inlet.

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.

PKZ197-191315-
338 PM AKST Sat Nov 18 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...
A 988 mb low will move over Kodiak City by Sun morning then it 
will move to 90 nm southeast of Kodiak City as it intensifies to 
973 mb Sun afternoon. It will then move to 360 nm south of Kodiak 
City at 982 mb by Mon afternoon.

$$

PKZ119-191315-
Cape Suckling to Cape Cleare-
338 PM AKST Sat Nov 18 2017

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

.TONIGHT...NE wind 15 kt. Seas 4 ft.
.SUN...E wind 25 kt increasing to 35 kt in the afternoon. Seas 4
ft building to 9 ft in the afternoon. Snow and rain.
.SUN NIGHT...E wind 45 kt. Seas building to 18 ft in the evening. 
Rain.
.MON...NE wind 40 kt. Seas 18 ft.
.MON NIGHT...NE wind 25 kt. Seas 12 ft.
.TUE...NE wind 20 kt. Seas 10 ft.
.WED...N wind 15 kt. Seas 4 ft.
.THU...E wind 20 kt. Seas 5 ft.

$$

PKZ120-191315-
Cape Cleare to Gore Point-
338 PM AKST Sat Nov 18 2017

...STORM WARNING SUNDAY NIGHT...

.TONIGHT...Variable wind 10 kt. Seas 5 ft. Snow.
.SUN...E wind 25 kt increasing to 45 kt in the afternoon. Seas 5
ft building to 11 ft in the afternoon. Snow and rain.
.SUN NIGHT...NE wind 55 kt. Seas 14 ft building to 21 ft in the
evening. Rain and snow.
.MON...NE wind 45 kt. Seas 20 ft.
.MON NIGHT...NE wind 25 kt. Seas 12 ft.
.TUE...N wind 20 kt. Seas 10 ft.
.WED...NW wind 15 kt. Seas 5 ft.
.THU...NE wind 15 kt. Seas 5 ft.

$$

PKZ121-191315-
Resurrection Bay-
338 PM AKST Sat Nov 18 2017

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

.TONIGHT...N wind 20 kt diminishing to 10 kt after midnight. Gusts to
30 kt near Seward in the early evening. Seas 3 ft.
.SUN...N wind 20 kt increasing to 30 kt in the afternoon. Seas 
3 ft building to 6 ft in the afternoon. Freezing spray. Snow.
.SUN NIGHT...N wind 30 kt. Gusts to 40 kt near Seward. Seas 6 ft. 
Freezing spray.
.MON AND MON NIGHT...N wind 20 kt. Seas 4 ft.
.TUE...N wind 15 kt. Seas 3 ft.
.WED...N wind 20 kt. Seas 4 ft.
.THU...N wind 25 kt. Seas 4 ft.

$$

PKZ125-191315-
Prince William Sound-
338 PM AKST Sat Nov 18 2017

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

.TONIGHT...NE wind 15 kt becoming E 10 kt after midnight. Seas 3
ft. Snow.
.SUN...E wind 15 kt becoming NE 25 kt in the afternoon. Seas 4 ft.
Snow.
.SUN NIGHT...NE wind 30 kt. Seas 6 ft.
.MON...NE wind 20 kt. Seas 4 ft.
.MON NIGHT...N wind 15 kt. Seas 3 ft.
.TUE THROUGH WED...N wind 10 kt. Seas 2 ft.
.THU...NE wind 15 kt. Seas 3 ft.

$$

PKZ126-191315-
Port Valdez-
338 PM AKST Sat Nov 18 2017

.TONIGHT...E wind 20 kt becoming NE 10 kt after midnight. Gusts to 35
kt near Valdez in the early evening. Seas 4 ft subsiding to 2 ft 
after midnight.
.SUN...NE wind 10 kt increasing to 15 kt in the afternoon. Seas
3 ft. Snow.
.SUN NIGHT...NE wind 20 kt. Seas 4 ft.
.MON AND MON NIGHT...NE wind 15 kt. Seas 3 ft.
.TUE...NE wind 15 kt. Seas 3 ft.
.WED THROUGH THU...NE wind 10 kt. Seas 2 ft.

$$

PKZ127-191315-
Valdez Narrows-
338 PM AKST Sat Nov 18 2017

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

.TONIGHT...NE wind 25 kt. Seas 3 ft.
.SUN...N wind 20 kt increasing to 30 kt in the afternoon. Seas 3
ft. Snow.
.SUN NIGHT...N wind 30 kt. Seas 4 ft.
.MON...NE wind 25 kt. Seas 3 ft.
.MON NIGHT...NE wind 20 kt. Seas 3 ft.
.TUE...NE wind 15 kt. Seas 3 ft.
.WED THROUGH THU...NE wind 20 kt. Seas 3 ft.

$$

PKZ128-191315-
Valdez Arm-
338 PM AKST Sat Nov 18 2017

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

.TONIGHT...NE wind 25 kt diminishing to 15 kt after midnight. Seas 4
ft subsiding to 2 ft after midnight.
.SUN...NE wind 15 kt increasing to 25 kt in the afternoon. Seas 3
ft building to 5 ft in the afternoon. Snow.
.SUN NIGHT...NE wind 25 kt. Seas 5 ft.
.MON AND MON NIGHT...NE wind 20 kt. Seas 4 ft.
.TUE THROUGH THU...NE wind 20 kt. Seas 4 ft.

$$

PKZ129-191315-
Passage Canal-
338 PM AKST Sat Nov 18 2017

.TONIGHT...W wind 15 kt. Gusts to 30 kt near Whittier in the evening. 
Seas 2 ft. Snow.
.SUN...E wind 20 kt. Seas 2 ft. Snow.
.SUN NIGHT...E wind 15 kt becoming W 10 kt after midnight. Seas
2 ft.
.MON AND MON NIGHT...W wind 10 kt. Seas 2 ft.
.TUE...Variable wind 10 kt. Seas 2 ft.
.WED THROUGH THU...W wind 15 kt. Seas 2 ft.

$$

PKZ130-191315-
West of Barren Islands including Kamishak Bay-
338 PM AKST Sat Nov 18 2017

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

.TONIGHT...NE wind 25 kt becoming E 25 kt after midnight. Seas 5 ft.
Snow.
.SUN...NE wind 30 kt becoming N 45 kt in the afternoon. Seas 9 ft
building to 15 ft in the afternoon. Snow.
.SUN NIGHT...N wind 45 kt. Seas 17 ft.
.MON...N wind 40 kt. Seas 14 ft.
.MON NIGHT...N wind 30 kt. Seas 10 ft.
.TUE THROUGH WED...NW wind 30 kt. Seas 9 ft.
.THU...N wind 15 kt. Seas 4 ft.

$$

PKZ131-191315-
Barren Islands East-
338 PM AKST Sat Nov 18 2017

...STORM WARNING SUNDAY NIGHT...

.TONIGHT...NW wind 25 kt becoming S 25 kt after midnight. Seas 5 ft.
Snow.
.SUN...SE wind 30 kt becoming NE 45 kt in the afternoon. Seas 7 ft
building to 12 ft in the afternoon. Rain and snow.
.SUN NIGHT...NE wind 60 kt. Seas 22 ft. Rain and snow.
.MON...NE wind 50 kt. Seas 22 ft.
.MON NIGHT...N wind 30 kt. Seas 14 ft.
.TUE THROUGH WED...NW wind 30 kt. Seas 9 ft.
.THU...NW wind 15 kt. Seas 5 ft.

$$

PKZ132-191315-
Marmot Island to Sitkinak-
338 PM AKST Sat Nov 18 2017

...STORM WARNING SUNDAY NIGHT...

.TONIGHT...NW wind 25 kt becoming SW 25 kt after midnight. Seas 6 
ft. Rain and snow.
.SUN...NW wind 45 kt, Seas 12 ft building to 18 ft in the
afternoon. N of Dangerous Cape, S wind 30 kt becoming NW 45 kt in 
the afternoon, Seas 7 ft building to 11 ft in the afternoon. Rain and
snow.
.SUN NIGHT...N wind 60 kt. Seas 24 ft. Rain and snow.
.MON...NE wind 55 kt. Seas 23 ft.
.MON NIGHT...N wind 35 kt. Seas 18 ft.
.TUE...NW wind 30 kt. Seas 11 ft.
.WED...NW wind 30 kt. Seas 8 ft.
.THU...W wind 20 kt. Seas 6 ft.

$$

PKZ136-191315-
Chiniak Bay-
338 PM AKST Sat Nov 18 2017

...STORM WARNING SUNDAY NIGHT...

.TONIGHT...W wind 10 kt becoming S 15 kt after midnight. Seas 2
ft. Snow and rain.
.SUN...W wind 25 kt becoming NW 45 kt in the afternoon. Seas 3 ft
building to 7 ft in the afternoon. Snow and rain.
.SUN NIGHT...N wind 50 kt. Seas 12 ft. Snow.
.MON...N wind 45 kt. Seas 15 ft.
.MON NIGHT...N wind 25 kt. Seas 6 ft.
.TUE THROUGH WED...NW wind 20 kt. Seas 2 ft.
.THU...NW wind 10 kt. Seas 2 ft.

$$

PKZ137-191315-
Marmot Bay-
338 PM AKST Sat Nov 18 2017

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

.TONIGHT...W wind 10 kt becoming S 15 kt after midnight. Seas 3
ft. Snow and rain.
.SUN...W wind 25 kt becoming NW 40 kt in the afternoon. Seas 4 ft
building to 10 ft in the afternoon. Snow and rain.
.SUN NIGHT...N wind 45 kt. Seas 10 ft. Snow.
.MON...N wind 40 kt. Seas 12 ft.
.MON NIGHT...N wind 25 kt. Seas 5 ft.
.TUE THROUGH WED...NW wind 20 kt. Seas 3 ft.
.THU...NW wind 15 kt. Seas 2 ft.

$$

PKZ138-191315-
Shelikof Strait-
338 PM AKST Sat Nov 18 2017

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

.TONIGHT...SE wind 15 kt becoming SW 25 kt after midnight. Seas 4
ft building to 8 ft. Snow and rain.
.SUN...NW wind 40 kt. Seas 9 ft. Snow.
.SUN NIGHT...N wind 35 kt. Seas 13 ft.
.MON...N wind 35 kt. Seas 14 ft.
.MON NIGHT...N wind 25 kt. Seas 7 ft.
.TUE THROUGH WED...W wind 25 kt. Seas 6 ft.
.THU...Variable wind 10 kt. Seas 3 ft.

$$

PKZ139-191315-
Cook Inlet Kalgin Island to Point Bede-
338 PM AKST Sat Nov 18 2017

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...NE wind 15 kt. Seas 3 ft. Snow.
.SUN...N wind 30 kt. Seas 10 ft. Snow.
.SUN NIGHT...N wind 35 kt. Seas 12 ft. Freezing spray.
.MON...NE wind 30 kt. Seas 10 ft.
.MON NIGHT...NE wind 25 kt. Seas 7 ft.
.TUE...N wind 20 kt. Seas 5 ft.
.WED THROUGH THU...N wind 15 kt. Seas 4 ft.

$$

PKZ140-191315-
Cook Inlet North of Kalgin Island-
338 PM AKST Sat Nov 18 2017

.TONIGHT...NE wind 10 kt. Seas 3 ft. Snow.
.SUN...NE wind 20 kt. Seas 6 ft. Freezing spray. Snow.
.SUN NIGHT...N wind 20 kt. Seas 6 ft. Freezing spray.
.MON...NE wind 20 kt. Seas 5 ft.
.MON NIGHT...NE wind 15 kt. Seas 4 ft.
.TUE THROUGH WED...N wind 10 kt. Seas 3 ft.
.THU...N wind 15 kt. Seas 3 ft.

$$

PKZ141-191315-
Kachemak Bay-
338 PM AKST Sat Nov 18 2017

...SMALL CRAFT ADVISORY SUNDAY NIGHT...

.TONIGHT...NE wind 10 kt. Seas 2 ft. Snow.
.SUN...NE wind 20 kt. Seas 3 ft. Snow.
.SUN NIGHT...N wind 30 kt. Seas 4 ft.
.MON...N wind 25 kt. Seas 3 ft.
.MON NIGHT...N wind 20 kt. Seas 4 ft.
.TUE THROUGH THU...N wind 15 kt. Seas 2 ft.

$$
3 follow-up statements
168 
FZAK51 PAFC 191240
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
340 AM AKST Sun Nov 19 2017

Coastal Waters Forecast for the Northern Gulf of Alaska Coast
up to 100 nm out including Kodiak Island and Cook Inlet.

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.

PKZ197-200215-
340 AM AKST Sun Nov 19 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A 988 mb low over Kodiak Island moves to 220 nm southeast of
Kodiak City at 966 mb Mon morning then it moves into the North 
Pacific through Tue morning.

$$

PKZ119-200215-
Cape Suckling to Cape Cleare-
340 AM AKST Sun Nov 19 2017

...STORM WARNING TONIGHT...

.TODAY...E wind 25 kt increasing to 35 kt in the afternoon. Seas
4 ft building to 10 ft in the afternoon. Snow and rain.
.TONIGHT...E wind 50 kt. Seas 18 ft. Rain.
.MON...E wind 40 kt becoming NE 30 kt in the afternoon. Seas 18
ft.
.MON NIGHT...NE wind 25 kt. Seas 12 ft.
.TUE...NE wind 20 kt. Seas 10 ft.
.WED...N wind 20 kt. Seas 6 ft.
.THU...E wind 20 kt. Seas 8 ft.

$$

PKZ120-200215-
Cape Cleare to Gore Point-
340 AM AKST Sun Nov 19 2017

...STORM WARNING TONIGHT...

.TODAY...E wind 25 kt increasing to 45 kt in the afternoon. Seas
8 ft building to 16 ft in the afternoon. Snow and rain.
.TONIGHT...NE wind 55 kt. Seas 24 ft. Rain and snow.
.MON...NE wind 45 kt diminishing to 35 kt in the afternoon. Seas
22 ft.
.MON NIGHT...NE wind 25 kt. Seas 12 ft.
.TUE THROUGH WED...NW wind 20 kt. Seas 8 ft.
.THU...E wind 20 kt. Seas 8 ft.

$$

PKZ121-200215-
Resurrection Bay-
340 AM AKST Sun Nov 19 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 15 kt increasing to 25 kt in the afternoon. Seas
3 ft building to 5 ft in the afternoon. Freezing spray. Snow.
.TONIGHT...N wind 25 kt. Seas 5 ft. Freezing spray.
.MON...N wind 20 kt. Seas 4 ft. Freezing spray.
.MON NIGHT...N wind 20 kt. Seas 4 ft.
.TUE...N wind 15 kt. Seas 3 ft.
.WED...N wind 20 kt. Seas 4 ft.
.THU...N wind 25 kt. Seas 5 ft.

$$

PKZ125-200215-
Prince William Sound-
340 AM AKST Sun Nov 19 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...E wind 15 kt becoming NE 25 kt in the afternoon. Seas 4
ft. Snow.
.TONIGHT...NE wind 30 kt. Seas 6 ft subsiding to 4 ft after
midnight.
.MON...NE wind 20 kt. Seas 3 ft.
.MON NIGHT...N wind 15 kt. Seas 3 ft.
.TUE...N wind 10 kt. Seas 2 ft.
.WED...N wind 15 kt. Seas 3 ft.
.THU...NE wind 15 kt. Seas 3 ft.

$$

PKZ126-200215-
Port Valdez-
340 AM AKST Sun Nov 19 2017

...SMALL CRAFT ADVISORY MONDAY...

.TODAY...NE wind 10 kt increasing to 15 kt in the afternoon. Seas
3 ft. Snow.
.TONIGHT...NE wind 20 kt. Seas 4 ft.
.MON...NE wind 25 kt. Gusts to 40 kt. Seas 5 ft. Freezing spray.
.MON NIGHT...NE wind 25 kt. Seas 5 ft.
.TUE THROUGH WED...NE wind 15 kt. Seas 3 ft.
.THU...NE wind 10 kt. Seas 2 ft.

$$

PKZ127-200215-
Valdez Narrows-
340 AM AKST Sun Nov 19 2017

...GALE WARNING TONIGHT AND MONDAY...

.TODAY...N wind 30 kt. Seas 3 ft. Snow.
.TONIGHT...N wind 35 kt. Seas 4 ft.
.MON...NE wind 35 kt. Seas 4 ft. Freezing spray.
.MON NIGHT...NE wind 35 kt. Seas 4 ft.
.TUE...NE wind 30 kt. Seas 3 ft.
.WED...NE wind 25 kt. Seas 3 ft.
.THU...NE wind 20 kt. Seas 3 ft.

$$

PKZ128-200215-
Valdez Arm-
340 AM AKST Sun Nov 19 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...NE wind 25 kt. Seas 5 ft. Snow.
.TONIGHT...NE wind 25 kt. Seas 5 ft.
.MON...NE wind 30 kt. Seas 6 ft. Freezing spray.
.MON NIGHT...NE wind 25 kt. Seas 5 ft.
.TUE THROUGH THU...NE wind 20 kt. Seas 4 ft.

$$

PKZ129-200215-
Passage Canal-
340 AM AKST Sun Nov 19 2017

.TODAY...E wind 20 kt. Seas 2 ft. Snow.
.TONIGHT...E wind 15 kt becoming W 10 kt after midnight. Seas 2
ft.
.MON...W wind 10 kt. Seas 2 ft.
.MON NIGHT...W wind 10 kt. Seas 2 ft.
.TUE...Variable wind 10 kt. Seas 2 ft.
.WED...W wind 15 kt. Seas 2 ft.
.THU...W wind 20 kt. Seas 2 ft.

$$

PKZ130-200215-
West of Barren Islands including Kamishak Bay-
340 AM AKST Sun Nov 19 2017

...GALE WARNING THROUGH MONDAY...

.TODAY...NE wind 30 kt becoming N 45 kt in the afternoon. Seas 9
ft building to 15 ft in the afternoon. Snow.
.TONIGHT...N wind 45 kt. Seas 17 ft.
.MON...N wind 40 kt diminishing to 30 kt in the afternoon. Seas
14 ft.
.MON NIGHT...N wind 30 kt. Seas 10 ft.
.TUE THROUGH WED...NW wind 30 kt. Seas 10 ft.
.THU...NE wind 25 kt. Seas 9 ft.

$$

PKZ131-200215-
Barren Islands East-
340 AM AKST Sun Nov 19 2017

...STORM WARNING THROUGH MONDAY...

.TODAY...SE wind 30 kt becoming NE 50 kt in the afternoon. Seas
11 ft building to 16 ft in the afternoon. Rain and snow.
.TONIGHT...NE wind 60 kt. Seas 22 ft. Rain and snow.
.MON...NE wind 50 kt diminishing to 40 kt in the afternoon. Seas
22 ft.
.MON NIGHT...N wind 30 kt. Seas 14 ft.
.TUE THROUGH THU...NW wind 30 kt. Seas 10 ft.

$$

PKZ132-200215-
Marmot Island to Sitkinak-
340 AM AKST Sun Nov 19 2017

...STORM WARNING THROUGH MONDAY...

.TODAY...NW wind 50 kt. N of Dangerous Cape, W wind 30 kt becoming
NW 50 kt in the afternoon. Seas 13 ft building to 22 ft. Rain and 
snow.
.TONIGHT...N wind 60 kt. Seas 24 ft. Rain and snow.
.MON...NE wind 55 kt diminishing to 45 kt in the afternoon. Seas
23 ft. Rain.
.MON NIGHT...N wind 35 kt. Seas 18 ft.
.TUE THROUGH THU...W wind 30 kt. Seas 12 ft.

$$

PKZ136-200215-
Chiniak Bay-
340 AM AKST Sun Nov 19 2017

...STORM WARNING TONIGHT...

.TODAY...W wind 25 kt becoming NW 45 kt in the afternoon. Seas 3
ft building to 8 ft in the afternoon. Snow and rain.
.TONIGHT...N wind 50 kt. Seas 12 ft. Snow.
.MON...NE wind 45 kt becoming N 30 kt in the afternoon. Seas 16
ft. Rain.
.MON NIGHT...N wind 25 kt. Seas 6 ft.
.TUE THROUGH THU...NW wind 25 kt. Seas 4 ft.

$$

PKZ137-200215-
Marmot Bay-
340 AM AKST Sun Nov 19 2017

...STORM WARNING TONIGHT...

.TODAY...W wind 25 kt becoming NW 40 kt in the afternoon. Seas 4
ft building to 10 ft in the afternoon. Snow and rain.
.TONIGHT...N wind 50 kt diminishing to 40 kt after midnight. Seas
12 ft. Snow.
.MON...N wind 40 kt diminishing to 30 kt in the afternoon. Seas
12 ft. Snow.
.MON NIGHT...N wind 25 kt. Seas 5 ft.
.TUE THROUGH THU...NW wind 25 kt. Seas 4 ft.

$$

PKZ138-200215-
Shelikof Strait-
340 AM AKST Sun Nov 19 2017

...GALE WARNING THROUGH MONDAY...

.TODAY...NW wind 40 kt. Seas 9 ft. Snow.
.TONIGHT...N wind 40 kt. Seas 13 ft.
.MON...N wind 35 kt. Seas 14 ft.
.MON NIGHT...N wind 25 kt. Seas 7 ft.
.TUE THROUGH WED...W wind 25 kt. Seas 7 ft.
.THU...NW wind 25 kt. Seas 7 ft.

$$

PKZ139-200215-
Cook Inlet Kalgin Island to Point Bede-
340 AM AKST Sun Nov 19 2017

...GALE WARNING TONIGHT...

.TODAY...N wind 30 kt. Seas 10 ft. Snow.
.TONIGHT...N wind 35 kt. Seas 12 ft. Freezing spray.
.MON...NE wind 30 kt. Seas 10 ft. Freezing spray.
.MON NIGHT...NE wind 25 kt. Seas 7 ft.
.TUE...N wind 20 kt. Seas 5 ft.
.WED...N wind 15 kt. Seas 4 ft.
.THU...NE wind 20 kt. Seas 5 ft.

$$

PKZ140-200215-
Cook Inlet North of Kalgin Island-
340 AM AKST Sun Nov 19 2017

.TODAY...NE wind 20 kt. Seas 6 ft. Freezing spray. Snow.
.TONIGHT...N wind 20 kt. Seas 6 ft. Freezing spray.
.MON...NE wind 20 kt. Seas 5 ft. Freezing spray.
.MON NIGHT...NE wind 15 kt. Seas 4 ft.
.TUE THROUGH WED...NE wind 10 kt. Seas 3 ft.
.THU...N wind 15 kt. Seas 3 ft.

$$

PKZ141-200215-
Kachemak Bay-
340 AM AKST Sun Nov 19 2017

...SMALL CRAFT ADVISORY TONIGHT AND MONDAY...

.TODAY...NE wind 20 kt. Seas 3 ft. Snow.
.TONIGHT...N wind 30 kt. Seas 4 ft.
.MON...N wind 25 kt. Seas 3 ft.
.MON NIGHT...N wind 20 kt. Seas 4 ft.
.TUE THROUGH WED...N wind 15 kt. Seas 2 ft.
.THU...N wind 20 kt. Seas 2 ft.

$$
452 
FZAK51 PAFC 200044
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
344 PM AKST Sun Nov 19 2017

Coastal Waters Forecast for the Northern Gulf of Alaska Coast
up to 100 nm out including Kodiak Island and Cook Inlet.

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.

PKZ197-201400-
344 PM AKST Sun Nov 19 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...
A 975 mb low 150 nm east of Kodiak City will track to 340 nm 
southeast of Kodiak City Mon afternoon then continue to move south 
and out of the area.

$$

PKZ119-201400-
Cape Suckling to Cape Cleare-
344 PM AKST Sun Nov 19 2017

...STORM WARNING TONIGHT...

.TONIGHT...E wind increasing to 50 kt. Seas 18 ft. Rain and Snow.
.MON...E wind 40 kt becoming NE 30 kt in the afternoon. Seas building
to 18 ft. Rain and Snow.
.MON NIGHT...NE wind 30 kt. Seas 12 ft.
.TUE...NE wind 20 kt. Seas 10 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 7 ft.
.WED...N wind 20 kt. Seas 6 ft.
.THU THROUGH FRI...NE wind 20 kt. Seas 8 ft.

$$

PKZ120-201400-
Cape Cleare to Gore Point-
344 PM AKST Sun Nov 19 2017

...STORM WARNING TONIGHT...

.TONIGHT...NE wind increasing to 55 kt. Seas building to 21 ft. Rain
and snow.
.MON...NE wind 45 kt diminishing to 35 kt in the afternoon. Seas 20 ft.
.MON NIGHT...NE wind 30 kt. Seas 12 ft.
.TUE...N wind 20 kt. Seas 9 ft.
.TUE NIGHT...NW wind 20 kt. Seas 6 ft.
.WED...NW wind 20 kt. Seas 7 ft.
.THU...E wind 20 kt. Seas 8 ft.
.FRI...N wind 20 kt. Seas 8 ft.

$$

PKZ121-201400-
Resurrection Bay-
344 PM AKST Sun Nov 19 2017

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

.TONIGHT...N wind 25 kt. Seas 5 ft. Freezing spray. Snow.
.MON AND MON NIGHT...N wind 25 kt. Seas 5 ft. Freezing spray.
.TUE...N wind 15 kt. Seas 3 ft.
.TUE NIGHT...N wind 25 kt. Seas 5 ft.
.WED THROUGH FRI...N wind 25 kt. Seas 5 ft.

$$

PKZ125-201400-
Prince William Sound-
344 PM AKST Sun Nov 19 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NE wind 20 kt increasing to 30 kt by midnight. Seas
building to 6 ft.
.MON...NE wind 20 kt. Seas 4 ft.
.MON NIGHT...N wind 15 kt. Seas 3 ft.
.TUE AND TUE NIGHT...N wind 10 kt. Seas 2 ft.
.WED...N wind 15 kt. Seas 3 ft.
.THU THROUGH FRI...N wind 15 kt. Seas 3 ft.

$$

PKZ126-201400-
Port Valdez-
344 PM AKST Sun Nov 19 2017

...SMALL CRAFT ADVISORY MONDAY AND MONDAY NIGHT...

.TONIGHT...NE wind 10 kt increasing to by midnight 20 kt. Gusts to 30
kt after midnight. Seas building to 4 ft. Freezing spray after 
midnight.
.MON...NE wind 25 kt. Gusts to 40 kt. Seas 5 ft. Freezing spray.
.MON NIGHT...NE wind 25 kt. Gusts to 35 kt. Seas 5 ft. Freezing spray.
.TUE...NE wind 15 kt. Seas 3 ft.
.TUE NIGHT...NE wind 20 kt. Seas 4 ft.
.WED...NE wind 20 kt. Seas 4 ft.
.THU THROUGH FRI...NE wind 10 kt. Seas 2 ft.

$$

PKZ127-201400-
Valdez Narrows-
344 PM AKST Sun Nov 19 2017

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...N wind 35 kt. Seas 4 ft. Freezing spray.
.MON...N wind 35 kt. Seas 4 ft.
.MON NIGHT...NE wind 35 kt. Seas 4 ft. Freezing spray.
.TUE AND TUE NIGHT...NE wind 30 kt. Seas 3 ft.
.WED...NE wind 30 kt. Seas 3 ft.
.THU THROUGH FRI...NE wind 20 kt. Seas 3 ft.

$$

PKZ128-201400-
Valdez Arm-
344 PM AKST Sun Nov 19 2017

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

.TONIGHT...NE wind 30 kt. Seas 6 ft.
.MON...NE wind 30 kt. Seas 6 ft.
.MON NIGHT...NE wind 25 kt. Seas 5 ft. Freezing spray.
.TUE...NE wind 20 kt. Seas 4 ft.
.TUE NIGHT...NE wind 25 kt. Seas 5 ft.
.WED...NE wind 25 kt. Seas 5 ft.
.THU THROUGH FRI...NE wind 20 kt. Seas 4 ft.

$$

PKZ129-201400-
Passage Canal-
344 PM AKST Sun Nov 19 2017

.TONIGHT...Variable wind less than 10 kt becoming W 10 kt after
midnight. Seas 2 ft. Snow.
.MON AND MON NIGHT...W wind 10 kt. Seas 2 ft.
.TUE...Variable wind less than 10 kt. Seas 2 ft.
.TUE NIGHT...W wind 20 kt. Seas 3 ft.
.WED...W wind 25 kt. Seas 4 ft.
.THU THROUGH FRI...W wind 20 kt. Seas 3 ft.

$$

PKZ130-201400-
West of Barren Islands including Kamishak Bay-
344 PM AKST Sun Nov 19 2017

...GALE WARNING THROUGH MONDAY...

.TONIGHT...N wind 45 kt. Seas 17 ft.
.MON...N wind 40 kt diminishing to 30 kt in the afternoon. Seas
14 ft.
.MON NIGHT...N wind 30 kt. Seas 10 ft.
.TUE...NW wind 20 kt. Seas 7 ft.
.TUE NIGHT...NW wind 40 kt. Seas 11 ft.
.WED...NW wind 30 kt. Seas 11 ft.
.THU...NE wind 25 kt. Seas 9 ft.
.FRI...NW wind 30 kt. Seas 9 ft.

$$

PKZ131-201400-
Barren Islands East-
344 PM AKST Sun Nov 19 2017

...STORM WARNING THROUGH MONDAY...

.TONIGHT...NE wind 30 kt increasing to 55 kt this evening. Seas
building to 22 ft. Rain and snow.
.MON...NE wind 50 kt diminishing to 40 kt in the afternoon. Seas
22 ft.
.MON NIGHT...NE wind 30 kt. Seas 14 ft.
.TUE...N wind 20 kt. Seas 10 ft.
.TUE NIGHT...NW wind 35 kt. Seas 11 ft.
.WED THROUGH FRI...N wind 30 kt. Seas 10 ft.

$$

PKZ132-201400-
Marmot Island to Sitkinak-
344 PM AKST Sun Nov 19 2017

...STORM WARNING THROUGH MONDAY...

.TONIGHT...N wind 30 kt increasing to 55 kt this evening. Seas
building to 24 ft. Rain and snow.
.MON...NE wind 55 kt diminishing to 45 kt in the afternoon. Seas
23 ft. Rain.
.MON NIGHT...N wind 40 kt diminishing to 30 kt after midnight.
Seas 18 ft subsiding to 13 ft after midnight.
.TUE...N wind 25 kt. Seas 11 ft.
.TUE NIGHT...NW wind 35 kt. Seas 11 ft.
.WED...NW wind 35 kt. Seas 10 ft.
.THU...W wind 30 kt. Seas 13 ft.
.FRI...N wind 30 kt. Seas 13 ft.

$$

PKZ136-201400-
Chiniak Bay-
344 PM AKST Sun Nov 19 2017

...STORM WARNING TONIGHT...

.TONIGHT...N wind 35 kt increasing to 50 kt by midnight. Seas
building to 12 ft. Snow and rain.
.MON...NE wind 45 kt becoming N 30 kt in the afternoon. Seas 16
ft. Rain and snow.
.MON NIGHT...N wind 30 kt diminishing to 20 kt after midnight.
Seas 6 ft.
.TUE...NW wind 15 kt. Seas 2 ft.
.TUE NIGHT...NW wind 30 kt. Seas 4 ft.
.WED THROUGH FRI...NW wind 25 kt. Seas 4 ft.

$$

PKZ137-201400-
Marmot Bay-
344 PM AKST Sun Nov 19 2017

...STORM WARNING TONIGHT...

.TONIGHT...N wind 50 kt diminishing to 40 kt after midnight. Seas
12 ft. Snow and rain.
.MON...N wind 40 kt diminishing to 25 kt in the afternoon. Seas
12 ft. Snow.
.MON NIGHT...N wind 25 kt. Seas 6 ft.
.TUE...NW wind 15 kt. Seas 3 ft.
.TUE NIGHT...NW wind 30 kt. Seas 4 ft.
.WED THROUGH FRI...NW wind 25 kt. Seas 4 ft.

$$

PKZ138-201400-
Shelikof Strait-
344 PM AKST Sun Nov 19 2017

...GALE WARNING THROUGH MONDAY...

.TONIGHT...N wind 40 kt. Seas 13 ft.
.MON...N wind 35 kt. Seas 14 ft.
.MON NIGHT...N wind 30 kt diminishing to 20 kt after midnight.
Seas 8 ft subsiding to 5 ft after midnight.
.TUE...NW wind 20 kt. Seas 5 ft.
.TUE NIGHT...NW wind 30 kt. Seas 5 ft.
.WED...W wind 20 kt. Seas 6 ft.
.THU THROUGH FRI...NW wind 25 kt. Seas 7 ft.

$$

PKZ139-201400-
Cook Inlet Kalgin Island to Point Bede-
344 PM AKST Sun Nov 19 2017

...GALE WARNING TONIGHT...

.TONIGHT...N wind 35 kt. Seas 12 ft.
.MON...NE wind 30 kt. Seas 10 ft.
.MON NIGHT...NE wind 25 kt. Seas 7 ft.
.TUE...N wind 20 kt. Seas 5 ft.
.TUE NIGHT...N wind 15 kt. Seas 3 ft.
.WED...N wind 10 kt. Seas 4 ft.
.THU THROUGH FRI...N wind 20 kt. Seas 5 ft.

$$

PKZ140-201400-
Cook Inlet North of Kalgin Island-
344 PM AKST Sun Nov 19 2017

.TONIGHT...N wind 20 kt. Seas 6 ft. Freezing spray.
.MON AND MON NIGHT...NE wind 20 kt. Seas 5 ft. Freezing spray.
.TUE AND TUE NIGHT...NE wind 10 kt. Seas 3 ft.
.WED...NE wind 10 kt. Seas 2 ft.
.THU THROUGH FRI...N wind 15 kt. Seas 3 ft.

$$

PKZ141-201400-
Kachemak Bay-
344 PM AKST Sun Nov 19 2017

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

.TONIGHT...N wind 30 kt. Seas 4 ft.
.MON...N wind 25 kt. Seas 3 ft.
.MON NIGHT...NE wind 25 kt. Seas 4 ft. Freezing spray.
.TUE AND TUE NIGHT...NW wind 15 kt. Seas 2 ft.
.WED...N wind 15 kt. Seas 2 ft.
.THU THROUGH FRI...N wind 20 kt. Seas 3 ft.

$$
791 
FZAK51 PAFC 201251
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
351 AM AKST Mon Nov 20 2017

Coastal Waters Forecast for the Northern Gulf of Alaska Coast
up to 100 nm out including Kodiak Island and Cook Inlet.

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.

PKZ197-210145-
351 AM AKST Mon Nov 20 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A 967 mb low 220 nm southeast of Kodiak City will exit into the 
North Pacific by Tue morning.

$$

PKZ119-210145-
Cape Suckling to Cape Cleare-
351 AM AKST Mon Nov 20 2017

...GALE WARNING TODAY...

.TODAY...NE wind 40 kt diminishing to 30 kt in the afternoon. 
Seas 18 ft. Rain.
.TONIGHT...NE wind 30 kt. Gusts to 45 kt out of the Copper River 
Delta. Seas 13 ft.
.TUE...NE wind 20 kt in the morning becoming variable 10 kt. 
Seas 10 ft.
.TUE NIGHT...N wind 25 kt. Seas 6 ft.
.WED...N wind 25 kt. Seas 7 ft.
.THU...E wind 25 kt. Seas 10 ft.
.FRI...NE wind 25 kt. Seas 11 ft.

$$

PKZ120-210145-
Cape Cleare to Gore Point-
351 AM AKST Mon Nov 20 2017

...GALE WARNING TODAY...

.TODAY...NE wind 45 kt diminishing to 35 kt in the afternoon. 
Seas 19 ft.
.TONIGHT...NE wind 30 kt diminishing to 20 kt after midnight. 
Seas 14 ft.
.TUE...NE wind 15 kt in the morning becoming variable 10 kt. 
Seas 9 ft.
.TUE NIGHT...N wind 30 kt. Seas 7 ft.
.WED...NW wind 25 kt. Seas 7 ft.
.THU...E wind 25 kt. Seas 10 ft.
.FRI...N wind 25 kt. Seas 10 ft.

$$

PKZ121-210145-
Resurrection Bay-
351 AM AKST Mon Nov 20 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 30 kt. Seas 5 ft. Freezing spray.
.TONIGHT...N wind 20 kt. Seas 4 ft. Freezing spray.
.TUE...N wind 15 kt diminishing to 10 kt in the afternoon. 
Seas 3 ft. Freezing spray.
.TUE NIGHT...N wind 30 kt. Seas 6 ft.
.WED...N wind 30 kt. Seas 6 ft.
.THU...N wind 20 kt. Seas 4 ft.
.FRI...N wind 25 kt. Seas 5 ft.

$$

PKZ125-210145-
Prince William Sound-
351 AM AKST Mon Nov 20 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TODAY...NE wind 20 kt. Gusts to 35 kt out of northern bays and 
passes. Seas 4 ft.
.TONIGHT...N wind 25 kt diminishing to 15 kt after midnight. 
Seas 5 ft subsiding to 3 ft.
.TUE...N wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.TUE NIGHT...NW wind 30 kt. Seas 4 ft.
.WED...N wind 20 kt. Seas 4 ft.
.THU...NE wind 15 kt. Seas 3 ft.
.FRI...N wind 15 kt. Seas 3 ft.

$$

PKZ126-210145-
Port Valdez-
351 AM AKST Mon Nov 20 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NE wind 25 kt. Seas 5 ft. Freezing spray.
.TONIGHT...NE wind 25 kt. Seas 5 ft. Freezing spray.
.TUE...NE wind 15 kt diminishing to 10 kt in the afternoon. 
Seas 3 ft. Freezing spray.
.TUE NIGHT...NE wind 20 kt. Seas 4 ft.
.WED...NE wind 25 kt. Seas 5 ft.
.THU...NE wind 10 kt. Seas 2 ft.
.FRI...NE wind 15 kt. Seas 3 ft.

$$

PKZ127-210145-
Valdez Narrows-
351 AM AKST Mon Nov 20 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...N wind 35 kt. Seas 4 ft.
.TONIGHT...NE wind 35 kt. Seas 4 ft. Freezing spray.
.TUE...NE wind 25 kt. Seas 3 ft. Freezing spray.
.TUE NIGHT...NE wind 30 kt. Seas 3 ft.
.WED...NE wind 35 kt. Seas 4 ft.
.THU...NE wind 20 kt. Seas 3 ft.
.FRI...NE wind 25 kt. Seas 3 ft.

$$

PKZ128-210145-
Valdez Arm-
351 AM AKST Mon Nov 20 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NE wind 30 kt. Seas 6 ft.
.TONIGHT...NE wind 30 kt. Seas 6 ft. Freezing spray.
.TUE...NE wind 20 kt. Seas 4 ft. Freezing spray.
.TUE NIGHT...NE wind 25 kt. Seas 5 ft.
.WED...NE wind 25 kt. Seas 5 ft.
.THU...NE wind 15 kt. Seas 3 ft.
.FRI...NE wind 20 kt. Seas 4 ft.

$$

PKZ129-210145-
Passage Canal-
351 AM AKST Mon Nov 20 2017

.TODAY...W wind 15 kt. Gusts to 35 kt near Whittier. Seas 2 ft.
.TONIGHT...W wind 15 kt diminishing to 10 kt after midnight. Gusts 
to 30 kt near Whittier. Seas 2 ft.
.TUE...Variable wind less than 10 kt. Seas 2 ft.
.TUE NIGHT...W wind 25 kt. Seas 4 ft.
.WED...W wind 25 kt. Seas 4 ft.
.THU THROUGH FRI...W wind 15 kt. Seas 2 ft.

$$

PKZ130-210145-
West of Barren Islands including Kamishak Bay-
351 AM AKST Mon Nov 20 2017

...GALE WARNING TODAY...

.TODAY...N wind 40 kt except 15 kt west of Augustine Island. 
Seas 15 ft.
.TONIGHT...N wind 30 kt. Seas 10 ft.
.TUE...W wind 20 kt. Seas 5 ft.
.TUE NIGHT...NW wind 40 kt. Seas 10 ft.
.WED THROUGH THU...N wind 30 kt. Seas 10 ft.
.FRI...NW wind 35 kt. Seas 13 ft.

$$

PKZ131-210145-
Barren Islands East-
351 AM AKST Mon Nov 20 2017

...GALE WARNING TODAY...

.TODAY...NE wind 45 kt. Seas 20 ft.
.TONIGHT...NE wind 30 kt diminishing to 20 kt after midnight. 
Seas 16 ft.
.TUE...N wind 15 kt. Seas 10 ft.
.TUE NIGHT...NW wind 35 kt. Seas 10 ft.
.WED...NW wind 30 kt. Seas 10 ft.
.THU...NW wind 35 kt. Seas 10 ft.
.FRI...N wind 40 kt. Seas 14 ft.

$$

PKZ132-210145-
Marmot Island to Sitkinak-
351 AM AKST Mon Nov 20 2017

...STORM WARNING TODAY...

.TODAY...N wind 55 kt diminishing to 45 kt in the afternoon. 
Seas 22 ft. Widespread rain showers.
.TONIGHT...N wind 35 kt diminishing to 25 kt after midnight. 
Seas 19 ft subsiding to 14 ft after midnight.
.TUE...N wind 20 kt. Seas 10 ft.
.TUE NIGHT...N wind 35 kt. Seas 11 ft.
.WED...W wind 35 kt. Seas 11 ft.
.THU...W wind 35 kt. Seas 16 ft.
.FRI...NW wind 40 kt. Seas 18 ft.

$$

PKZ136-210145-
Chiniak Bay-
351 AM AKST Mon Nov 20 2017

...GALE WARNING TODAY...

.TODAY...N wind 35 kt. Seas 7 ft. Rain.
.TONIGHT...N wind 25 kt. Seas 5 ft.
.TUE...NW wind 15 kt. Seas 2 ft.
.TUE NIGHT...NW wind 30 kt. Seas 5 ft.
.WED...W wind 25 kt. Seas 3 ft.
.THU THROUGH FRI...NW wind 30 kt. Seas 5 ft.

$$

PKZ137-210145-
Marmot Bay-
351 AM AKST Mon Nov 20 2017

...GALE WARNING TODAY...

.TODAY...N wind 35 kt. Seas 7 ft.
.TONIGHT...N wind 25 kt. Seas 5 ft subsiding to 3 ft after
midnight.
.TUE...NW wind 10 kt becoming W 15 kt in the afternoon. Seas 2 ft.
.TUE NIGHT...NW wind 25 kt. Seas 4 ft.
.WED...W wind 25 kt. Seas 4 ft.
.THU THROUGH FRI...NW wind 30 kt. Seas 5 ft.

$$

PKZ138-210145-
Shelikof Strait-
351 AM AKST Mon Nov 20 2017

...GALE WARNING TODAY...

.TODAY...N wind 40 kt. Seas 14 ft.
.TONIGHT...N wind 30 kt. Seas 10 ft subsiding to 7 ft after
midnight.
.TUE...W wind 20 kt. Seas 4 ft.
.TUE NIGHT...NW wind 30 kt. Seas 7 ft.
.WED...W wind 25 kt. Seas 6 ft.
.THU THROUGH FRI...NW wind 35 kt. Seas 11 ft.

$$

PKZ139-210145-
Cook Inlet Kalgin Island to Point Bede-
351 AM AKST Mon Nov 20 2017

...GALE WARNING TODAY...

.TODAY...NE wind 35 kt. Seas 11 ft.
.TONIGHT...NE wind 25 kt. Seas 7 ft.
.TUE...NE wind 15 kt becoming SW 10 kt in the afternoon. 
Seas 2 ft.
.TUE NIGHT...N wind 20 kt. Seas 5 ft.
.WED...NE wind 15 kt. Seas 4 ft.
.THU THROUGH FRI...N wind 20 kt. Seas 6 ft.

$$

PKZ140-210145-
Cook Inlet North of Kalgin Island-
351 AM AKST Mon Nov 20 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt. Seas 7 ft. Freezing spray.
.TONIGHT...NE wind 25 kt diminishing to 10 kt after midnight. 
Seas 5 ft subsiding to 2 ft after midnight. Freezing spray.
.TUE...E wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.TUE NIGHT...NE wind 10 kt. Seas 2 ft.
.WED...NE wind 15 kt. Seas 3 ft.
.THU...N wind 20 kt. Seas 5 ft.
.FRI...N wind 15 kt. Seas 4 ft.

$$

PKZ141-210145-
Kachemak Bay-
351 AM AKST Mon Nov 20 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NE wind 25 kt...strongest over the outer waters. Seas 4 ft.
.TONIGHT...NE wind 15 kt. Seas 3 ft. 
.TUE...Variable wind less than 10 kt. Seas 2 ft.
.TUE NIGHT...N wind 20 kt. Seas 2 ft.
.WED...NE wind 15 kt. Seas 2 ft.
.THU THROUGH FRI...N wind 20 kt. Seas 3 ft.

$$

What forecasters said that day

The local office's own words before this storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Anchorage, AK wrote its last area forecast discussion before this storm warning went out at Nov 18, 5:31 AM AKST, 10 hours 7 minutes earlier.

Area forecast discussion, Nov 18, 5:31 AM AKST, 10 hours 7 minutes before
Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
531 AM AKST Sat Nov 18 2017

.ANALYSIS AND UPPER LEVELS...

A Gulf low departing into the northeast Pacific this morning is
helping to dig a longwave trough centered over the Alcan border
region while a ridge builds over the central Bering Sea. This has
allowed the bulk of the southern mainland to return to a more
amplified offshore flow pattern, leaving gusty outflow winds along
the Gulf coast as the primary sensible weather impact. Skies have
cleared out over Southcentral AK once again with the exception of
some patchy fog and stratus lingering over parts of Cook Inlet
and the Matanuska Valley. Skies are mostly overcast across
Southwest AK as mid level cloud cover streams in over the top of
the Bering ridge. A warm front associated with a low over far
eastern Russia extends southeast along the Kuskokwim Delta
coastline and is poised to bring another round of mixed
precipitation to the Delta as it moves inland today. A trailing
cold front is making slow eastward progress through the Western
Aleutians.

&&

.MODEL DISCUSSION...
Models are in generally good short term agreement as the pattern
remains very progressive over the coming days. The Bering Sea
ridge will quickly break down this weekend as a strong upper level
wave drops out of the Bering Strait region Saturday night and
moves into the western Gulf on Sunday, spreading significant
winter weather and strong winds over a wide swath of the eastern
Bering and Southwest AK. Some differences remain regarding the
placement of a surface low developing east of Kodiak Sunday
morning, which will have large implications on precipitation type
and intensity for Kodiak Island. Preferred the GFS solution as
somewhat of a middle ground for the morning forecast package.

&&

.AVIATION...
PANC...VFR conditions and light northerly winds will persist
through late Saturday night. Snow will spread back into the
terminal from the west early Sunday morning, dropping conditions
to MVFR/IFR after 12z.

&&

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

Strong gap/outflow conditions and gales over the western Gulf
will weaken through today as surface pressure gradients and upper
wind support wanes. The focus then turns to the frontal trough and
associated triple point center moving into the western Gulf
tonight. Models are initially in agreement with the occluded
portion of the front as it spreads overrunning snow to
Southcentral beginning Sunday morning. The triple point is another
matter. The preferred solution is to take the triple point which
develops near Kodiak Island Sunday morning and carry it just to
the east and then retrograde the system to the west/southwest some
Sunday night. This will be a fairly strong low that will bring
gales and storm force winds to the Gulf waters Sunday and Sunday
night. The result of this solution for the Southcentral Mainland
would be to spread snow to along the north Gulf coast through
Sunday afternoon with the heaviest over the Kenai Peninsula. Snow
amounts may approach advisory levels over the western Kenai by
Sunday afternoon. Snow will tapper off throughout the evening and
overnight hours over the Mainland and be followed outflow winds
along the north Gulf coast.

Kodiak island will likely see warm advection with a mix of rain
and snow with the front and developing triple point Sunday. The
preferred solution of keeping the low just to the east would
likely hold out any significant cold advection and tend to keep
the precipitation mixed or a very wet snow. So with the strong
winds moving in we are not expecting significant reductions in
visibilities in blowing snow with the strong northerly winds
develop during Sunday and Sunday night. A slight change in track
however would result in potential heavier snowfall and significant
blowing snow. Stay tuned for updates.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...

The storm expected to impact Southwest Alaska remains on track.
The storm's center is still over eastern Russia, however the
storm's warm and cold fronts extend well south of the center of
the low across the Bering. The warm front is over the eastern
Bering, and is responsible for the snow and mixed precipitation
already being reported along the coast this morning. The cold
front and arguably the bigger weather maker is the cold front now
racing across the western Bering. As the warm front slowly pushes
into mainland Southwest Alaska, the snow will change over to rain
first at the coast and gradually through much of the Kuskokwim
Delta west of the Kuskokwim Mountains. During that transition from
snow to rain this afternoon, a brief period of freezing rain is
possible, but the warm air is expected to scour out the
subfreezing surface air quickly, with a little help from the weak
November sun.

Further south through Bristol Bay, snow will begin around midday
and push eastward to the Alaska Range by the evening. At the
coast, the warm air will transition the snow to rain during the
afternoon, but with slightly weaker onshore winds, it will have
more difficulty scouring out all of the cold air. Thus a longer
duration freezing rain is expected north of King Salmon through
Koliganek, New Stuyahok, and Igiugig, though ice accumulations
should remain less than a tenth of an inch with a wide variety of
precipitation types expected. Inland Bristol Bay and the entire
Kuskokwim Valley are still expected to pick up close to a foot of
loose, powdery snow. In the windier areas, that will cause blowing
snow concerns both as the snow is falling and well after the storm
ends through Monday morning.

The cold front will race across the Bering today and reach the
coast tonight. It is the leading edge of very cold air, which
coupled with the rapidly intensifying low over the Bering Strait
will cause a large area of storm force winds with gusts over
hurricane force. This is most likely in Southwest Alaska along the
coast of the Kuskokwim Delta and especially Nunivak Island.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...

A storm over Russia with distinct warm and cold fronts over the
Bering are the primary weather features this morning. The warm
front will move into Southwest Alaska this morning. The cold front
and the arrival of a much colder air mass will be the catalysts
for strong winds across much of the Bering. The first land to be
impacted will be the Pribilofs. The cold front will race through
this afternoon, but the highest winds will really be associated
with the strengthening low over the Bering Strait late Saturday
night that will dramatically increase the winds out of the
northwest late tonight through Sunday morning. A few hours later,
those same winds will reach the Alaska Peninsula and Eastern
Aleutians, where gusts as high as 90 mph through bays, passes, and
channeled terrain will be possible.

The strong winds associated with the low will diminish late Sunday
night through Monday morning as another area of warm high pressure
builds over the central and western Bering. Yet another low
tracking along the Russian Coast will cause yet another cold front
with another blast of cold air on strong winds to traverse the
Bering Monday for the western Bering and Monday night for the
remainder of the Bering, though these strong winds will be more
out of the west.

&&

.LONG TERM FORECAST (Days 3 through 7)...
Expect near to below normal temperatures with periodic snow across
the southwest, and periodic cloudiness for Southcentral Alaska.
Gap winds will pulse up with every exiting disturbance.

Monday evening begins day 3 with an exiting system in the Gulf of
Alaska. Dry conditions will take hold over much of southern Alaska
within an outflow pattern, mainly along the north Gulf coast.
Overall, the upper level pattern remains very progressive with
strong, discrete disturbances propagating from the northwest
Pacific into the Bering Sea. Each of these systems will send a
surface low pressure east of Kamchatka while sending a front from
west to east across the Bering. However, troughing from northwest
Canada southward will turn the storm track from the Bering into
the Gulf of Alaska. As far as sensible weather is concerned, the
periodic fronts will push snow onto the mainland while the front
falls apart as it moves west to east.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...High Wind Warning: 155 181 185 195
Winter Weather Advisory: 121 152 161
MARINE...Storms: 131 132 155 165 170 172 179 180 181 185 412 414
Gales: 119 120 138 150 160 171 173 174 178 351 352 411 413

&&

SYNOPSIS AND MODEL DISCUSSION...CB
SOUTHCENTRAL ALASKA...RMC
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...JPW
LONG TERM...TP

The office that day

Everything else NWS Anchorage, AK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 18, 3:25 PM AKSTStorm WarningAFC36 hr
Nov 18, 3:35 PM AKSTStorm WarningAFC36 hr
Nov 18, 3:38 PM AKSTGale WarningAFC11 days
Nov 18, 3:38 PM AKSTSmall Craft AdvisoryAFC12 hr
Nov 19, 3:40 AM AKSTGale WarningAFC3 days
Nov 19, 3:40 AM AKSTSmall Craft AdvisoryAFC4 days
Nov 19, 3:40 AM AKSTStorm WarningAFC24 hr

Nearby

Storm Warnings in Alaska, 2017Every storm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.