Alert archive / Alaska / Small Craft Advisories in 2017

Small Craft Advisory 966, NWS Anchorage, AK

December 16, 2017

NWS Anchorage, AK issued this small craft advisory at Dec 16, 2017, 3:07 AM AKST. It was in force for 49 hr.

The area

The counties it named.

The facts

Issued
Dec 16, 2017, 3:07 AM AKST (12:07 UTC)
Expired
Dec 18, 2017, 3:45 AM AKST
In force
49 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

144 
FZAK51 PAFC 161207
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
307 AM AKST Sat Dec 16 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.

PKZ197-170045-
307 AM AKST Sat Dec 16 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A front moves across the Gulf through this afternoon. A 993 mb low
40 nm southeast of Seldovia Sun morning moves to 85 nm east of
Middleton Island at 1005 mb by Mon morning.

$$

PKZ119-170045-
Cape Suckling to Cape Cleare-
307 AM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...SW wind 25 kt. Along the coast, SE wind 30 kt becoming SW 15
kt in the afternoon. Seas 14 ft.
.TONIGHT...SW wind 25 kt. Seas 14 ft.
.SUN...S wind 15 kt. Seas 13 ft.
.SUN NIGHT...NE wind 20 kt. Seas 11 ft.
.MON...N wind 15 kt. Seas 8 ft.
.TUE...SW wind 25 kt. Seas 10 ft.
.WED...SW wind 20 kt. Seas 10 ft.

$$

PKZ120-170045-
Cape Cleare to Gore Point-
307 AM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...SW wind 25 kt. Seas 14 ft.
.TONIGHT...SW wind 20 kt. Seas 13 ft.
.SUN...SE wind 15 kt becoming NE in the afternoon. Seas 12 ft.
.SUN NIGHT...N wind 15 kt. Seas 9 ft.
.MON...NW wind 15 kt. Seas 7 ft.
.TUE...SW wind 25 kt. Seas 10 ft.
.WED...SW wind 20 kt. Seas 10 ft.

$$

PKZ121-170045-
Resurrection Bay-
307 AM AKST Sat Dec 16 2017

.TODAY...S wind 10 kt. Seas 2 ft.
.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt becoming N 10 kt in the
afternoon. Seas 2 ft.
.SUN NIGHT...N wind 20 kt. Seas 4 ft.
.MON...N wind 20 kt. Seas 4 ft.
.TUE...N wind 15 kt. Seas 2 ft.
.WED...S wind 10 kt. Seas 2 ft.

$$

PKZ125-170045-
Prince William Sound-
307 AM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...SE wind 30 kt becoming S 15 kt by late morning. Seas 7 ft
subsiding to 3 ft in the afternoon.
.TONIGHT...S wind 10 kt becoming E after midnight. Seas 2 ft.
.SUN...E wind 15 kt. Seas 3 ft.
.SUN NIGHT...N wind 15 kt. Seas 3 ft.
.MON...N wind 10 kt. Seas 2 ft.
.TUE...SE wind 10 kt. Seas 2 ft.
.WED...S wind 10 kt. Seas 2 ft.

$$

PKZ126-170045-
Port Valdez-
307 AM AKST Sat Dec 16 2017

.TODAY...Variable wind less than 10 kt. Seas 2 ft. Snow and rain.
.TONIGHT...Variable wind less than 10 kt. Seas 2 ft. Snow showers.
.SUN...Variable wind less than 10 kt. Seas 2 ft.
.SUN NIGHT...NE wind 15 kt. Seas 3 ft.
.MON THROUGH TUE...NE wind 15 kt. Seas 3 ft.
.WED...E wind 10 kt. Seas 2 ft.

$$

PKZ127-170045-
Valdez Narrows-
307 AM AKST Sat Dec 16 2017

.TODAY...NE wind 15 kt becoming SW 10 kt by late morning. Seas 3 ft.
Rain and snow.
.TONIGHT...NE wind 10 kt increasing to 20 kt after midnight. Seas
3 ft. Snow showers.
.SUN...NE wind 20 kt. Seas 3 ft.
.SUN NIGHT...NE wind 25 kt. Seas 3 ft.
.MON...NE wind 25 kt. Seas 3 ft.
.TUE...NE wind 20 kt. Seas 3 ft.
.WED...NE wind 15 kt. Seas 3 ft.

$$

PKZ128-170045-
Valdez Arm-
307 AM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...SE wind 30 kt in the morning becoming SW 10 kt by late
morning. Seas 4 ft. Rain and snow showers.
.TONIGHT...Variable wind less than 10 kt becoming NE 15 kt after
midnight. Seas 3 ft. Snow showers.
.SUN...NE wind 15 kt. Seas 3 ft.
.SUN NIGHT...NE wind 20 kt. Seas 4 ft.
.MON...NE wind 20 kt. Seas 4 ft.
.TUE...NE wind 15 kt. Seas 3 ft.
.WED...NE wind 10 kt. Seas 2 ft.

$$

PKZ129-170045-
Passage Canal-
307 AM AKST Sat Dec 16 2017

.TODAY...E wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft. Rain showers and snow showers.
.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt. Seas 2 ft.
.SUN NIGHT...W wind 15 kt. Seas 2 ft.
.MON...W wind 15 kt. Seas 2 ft.
.TUE...E wind 25 kt. Seas 4 ft.
.WED...E wind 15 kt. Seas 2 ft.

$$

PKZ130-170045-
West of Barren Islands including Kamishak Bay-
307 AM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY SUNDAY...

.TODAY...SW wind 15 kt. Seas 4 ft.
.TONIGHT...SE wind 15 kt. Seas 3 ft.
.SUN...NW wind 25 kt. Seas 6 ft.
.SUN NIGHT...NW wind 30 kt. Seas 9 ft.
.MON...NW wind 30 kt. Seas 7 ft.
.TUE THROUGH WED...S wind 20 kt. Seas 5 ft.

$$

PKZ131-170045-
Barren Islands East-
307 AM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...SW wind 30 kt. Seas 14 ft.
.TONIGHT...S wind 25 kt. Seas 14 ft.
.SUN...W wind 15 kt becoming NW 25 kt in the afternoon. Seas 13
ft.
.SUN NIGHT...NW wind 30 kt. Seas 10 ft.
.MON...W wind 30 kt. Seas 9 ft.
.TUE...SW wind 25 kt. Seas 10 ft.
.WED...S wind 20 kt. Seas 9 ft.

$$

PKZ132-170045-
Marmot Island to Sitkinak-
307 AM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...SW wind 30 kt. Seas 17 ft.
.TONIGHT...SW wind 30 kt. Seas 19 ft.
.SUN...NW wind 25 kt. Seas 16 ft.
.SUN NIGHT...NW wind 30 kt. Seas 13 ft.
.MON...W wind 30 kt. Seas 10 ft.
.TUE THROUGH WED...S wind 25 kt. Seas 12 ft.

$$

PKZ136-170045-
Chiniak Bay-
307 AM AKST Sat Dec 16 2017

.TODAY...SW wind 20 kt. Seas 3 ft.
.TONIGHT...S wind 15 kt. Seas 2 ft.
.SUN...W wind 10 kt becoming NW 20 kt in the afternoon. Seas 3 ft.
.SUN NIGHT...NW wind 25 kt. Seas 4 ft.
.MON THROUGH TUE...SW wind 20 kt. Seas 3 ft.
.WED...S wind 20 kt. Seas 6 ft.

$$

PKZ137-170045-
Marmot Bay-
307 AM AKST Sat Dec 16 2017

.TODAY...SW wind 15 kt. Seas 3 ft.
.TONIGHT...S wind 15 kt becoming SW 10 kt after midnight. Seas 3
ft.
.SUN...NW wind 20 kt. Seas 3 ft.
.SUN NIGHT...NW wind 25 kt. Seas 4 ft.
.MON...W wind 15 kt. Seas 2 ft.
.TUE...SW wind 20 kt. Seas 4 ft.
.WED...S wind 20 kt. Seas 7 ft.

$$

PKZ138-170045-
Shelikof Strait-
307 AM AKST Sat Dec 16 2017

.TODAY...SW wind 20 kt. Seas 5 ft.
.TONIGHT...S wind 15 kt. Seas 3 ft.
.SUN...NW wind 20 kt. Seas 4 ft.
.SUN NIGHT...NW wind 25 kt. Seas 6 ft.
.MON THROUGH TUE...SW wind 25 kt. Seas 8 ft.
.WED...S wind 20 kt. Seas 5 ft.

$$

PKZ139-170045-
Cook Inlet Kalgin Island to Point Bede-
307 AM AKST Sat Dec 16 2017

.TODAY...SW wind 15 kt. Seas 3 ft.
.TONIGHT...E wind 10 kt becoming NE 15 kt after midnight. Seas 3 ft.
.SUN...N wind 20 kt. Seas 5 ft.
.SUN NIGHT...NW wind 15 kt. Seas 3 ft.
.MON...N wind 10 kt. Seas 2 ft.
.TUE...NW wind 15 kt. Seas 3 ft.
.WED...S wind 15 kt. Seas 3 ft.

$$

PKZ140-170045-
Cook Inlet North of Kalgin Island-
307 AM AKST Sat Dec 16 2017

.TODAY...Variable wind less than 10 kt becoming SW 10 kt in the
afternoon. Seas 2 ft.
.TONIGHT...NE wind 10 kt increasing to 15 kt after midnight. Seas
3 ft.
.SUN...N wind 15 kt. Seas 3 ft.
.SUN NIGHT...N wind 10 kt. Seas 2 ft.
.MON THROUGH WED...N wind 10 kt. Seas 2 ft.

$$

PKZ141-170045-
Kachemak Bay-
307 AM AKST Sat Dec 16 2017

.TODAY...S wind 15 kt. Seas 2 ft. Rain showers.
.TONIGHT...SE wind 10 kt. Seas 2 ft.
.SUN...N wind 10 kt increasing to 15 kt in the afternoon. Seas 2
ft.
.SUN NIGHT...N wind 15 kt. Seas 2 ft.
.MON...N wind 10 kt. Seas 2 ft.
.TUE...SW wind 10 kt. Seas 2 ft.
.WED...S wind 15 kt. Seas 2 ft.

$$
3 follow-up statements
095 
FZAK51 PAFC 170042
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
342 PM AKST Sat Dec 16 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.

PKZ197-171400-
342 PM AKST Sat Dec 16 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...
Troughs move over the North Gulf Coast as a 986 mb low forms 120 nm 
West of Kodiak City tonight. This low moves to 180 nm Southwest of 
Klawock by Mon afternoon.

$$

PKZ119-171400-
Cape Suckling to Cape Cleare-
342 PM AKST Sat Dec 16 2017

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

.TONIGHT...SW wind 25 kt diminishing to 15 kt after midnight. Seas 
14 ft. Rain showers.
.SUN...S wind 15 kt. Seas 13 ft.
.SUN NIGHT...N wind 15 kt. Seas 10 ft.
.MON...N wind 15 kt. Seas 8 ft.
.MON NIGHT...W wind 15 kt. Seas 6 ft.
.TUE...SW wind 25 kt. Seas 10 ft.
.WED...SW wind 20 kt. Seas 10 ft.
.THU...SE wind 20 kt. Seas 12 ft.

$$

PKZ120-171400-
Cape Cleare to Gore Point-
342 PM AKST Sat Dec 16 2017

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

.TONIGHT...SW wind 20 kt. Seas 13 ft. Rain showers.
.SUN...SE wind 15 kt becoming NE in the afternoon. Seas 12 ft.
.SUN NIGHT...N wind 20 kt. Seas 8 ft.
.MON...NW wind 20 kt. Seas 7 ft.
.MON NIGHT...SW wind 20 kt. Seas 4 ft.
.TUE...SW wind 25 kt. Seas 10 ft.
.WED...SW wind 20 kt. Seas 10 ft.
.THU...SE wind 20 kt. Seas 14 ft.

$$

PKZ121-171400-
Resurrection Bay-
342 PM AKST Sat Dec 16 2017

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft. Snow showers
and rain showers.
.SUN...N wind 10 kt. Seas 2 ft.
.SUN NIGHT...N wind 20 kt. Seas 4 ft. Freezing spray.
.MON...N wind 20 kt. Seas 4 ft.
.MON NIGHT...S wind 10 kt. Seas 2 ft.
.TUE...S wind 15 kt. Seas 3 ft.
.WED...S wind 10 kt. Seas 2 ft.
.THU...S wind 15 kt. Seas 3 ft.

$$

PKZ125-171400-
Prince William Sound-
342 PM AKST Sat Dec 16 2017

.TONIGHT...S wind 10 kt becoming E after midnight. Seas 2 ft.
.SUN...NE wind 15 kt. Seas 3 ft. Rain showers.
.SUN NIGHT...N wind 15 kt. Seas 3 ft.
.MON...N wind 20 kt. Seas 3 ft.
.MON NIGHT...NE wind 10 kt. Seas 2 ft.
.TUE...SE wind 15 kt. Seas 2 ft.
.WED...S wind 10 kt. Seas 2 ft.
.THU...E wind 15 kt. Seas 2 ft.

$$

PKZ126-171400-
Port Valdez-
342 PM AKST Sat Dec 16 2017

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft. Widespread snow
showers.
.SUN...Variable wind less than 10 kt. Seas 2 ft.
.SUN NIGHT...E wind 10 kt becoming NE 15 kt after midnight. Seas 3 ft.
.MON...NE wind 15 kt. Seas 3 ft.
.MON NIGHT...NE wind 10 kt. Seas 2 ft.
.TUE THROUGH WED...E wind 10 kt. Seas 2 ft.
.THU...NE wind 15 kt. Seas 3 ft.

$$

PKZ127-171400-
Valdez Narrows-
342 PM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY SUNDAY NIGHT...

.TONIGHT...NE wind 15 kt. Seas 3 ft. Widespread snow showers.
.SUN...NE wind 20 kt. Seas 3 ft.
.SUN NIGHT...NE wind 25 kt. Seas 3 ft.
.MON...NE wind 25 kt. Seas 3 ft.
.MON NIGHT...NE wind 20 kt. Seas 3 ft.
.TUE THROUGH WED...NE wind 15 kt. Seas 3 ft.
.THU...NE wind 20 kt. Seas 3 ft.

$$

PKZ128-171400-
Valdez Arm-
342 PM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY SUNDAY NIGHT...

.TONIGHT...NE wind 10 kt. Seas 2 ft.
.SUN...NE wind 10 kt increasing to 15 kt in the afternoon. Seas 3 ft.
.SUN NIGHT...NE wind 25 kt. Seas 5 ft.
.MON...N wind 20 kt. Seas 4 ft.
.MON NIGHT...NE wind 10 kt. Seas 2 ft.
.TUE THROUGH WED...NE wind 10 kt. Seas 2 ft.
.THU...NE wind 15 kt. Seas 3 ft.

$$

PKZ129-171400-
Passage Canal-
342 PM AKST Sat Dec 16 2017

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt. Seas 2 ft.
.SUN NIGHT...W wind 10 kt increasing to 15 kt after midnight. Seas
2 ft. Freezing spray.
.MON...W wind 15 kt. Seas 2 ft.
.MON NIGHT...E wind 10 kt. Seas 2 ft.
.TUE THROUGH THU...E wind 15 kt. Seas 2 ft.

$$

PKZ130-171400-
West of Barren Islands including Kamishak Bay-
342 PM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY SUNDAY NIGHT...

.TONIGHT...SE wind 15 kt. Seas 4 ft.
.SUN...NE wind 20 kt becoming NW after midnight. Seas 5 ft.
.SUN NIGHT...NW wind 30 kt. Seas 9 ft. Freezing spray.
.MON...NW wind 30 kt. Seas 8 ft.
.MON NIGHT...SE wind 20 kt. Seas 5 ft.
.TUE...SW wind 25 kt. Seas 6 ft.
.WED...S wind 20 kt. Seas 5 ft.
.THU...E wind 25 kt. Seas 5 ft.

$$

PKZ131-171400-
Barren Islands East-
342 PM AKST Sat Dec 16 2017

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

.TONIGHT...SW wind 20 kt. Seas 13 ft.
.SUN...NW wind 20 kt. Seas 13 ft.
.SUN NIGHT...NW wind 30 kt. Seas 10 ft.
.MON...NW wind 30 kt. Seas 9 ft.
.MON NIGHT...SW wind 25 kt. Seas 6 ft.
.TUE...SW wind 30 kt. Seas 11 ft.
.WED...S wind 20 kt. Seas 9 ft.
.THU...SE wind 25 kt. Seas 15 ft.

$$

PKZ132-171400-
Marmot Island to Sitkinak-
342 PM AKST Sat Dec 16 2017

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

.TONIGHT...SW wind 30 kt. Seas 18 ft. Rain showers.
.SUN...NW wind 15 kt increasing to 25 kt in the afternoon. Seas 15 ft.
.SUN NIGHT...NW wind 30 kt. Seas 13 ft.
.MON...W wind 25 kt. Seas 10 ft.
.MON NIGHT...SW wind 30 kt. Seas 9 ft.
.TUE...SW wind 30 kt. Seas 14 ft.
.WED...S wind 25 kt. Seas 11 ft.
.THU...SE wind 25 kt. Seas 16 ft.

$$

PKZ136-171400-
Chiniak Bay-
342 PM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY SUNDAY NIGHT...

.TONIGHT...S wind 15 kt. Seas 2 ft.
.SUN...W wind 10 kt becoming NW 20 kt in the afternoon. Seas 3 ft.
.SUN NIGHT...NW wind 25 kt. Seas 4 ft.
.MON...W wind 15 kt. Seas 2 ft.
.MON NIGHT...S wind 25 kt. Seas 3 ft.
.TUE...SW wind 25 kt. Seas 4 ft.
.WED...S wind 20 kt. Seas 6 ft.
.THU...SE wind 20 kt. Seas 7 ft.

$$

PKZ137-171400-
Marmot Bay-
342 PM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY SUNDAY NIGHT...

.TONIGHT...S wind 15 kt. Seas 3 ft.
.SUN...W wind 15 kt. Seas 2 ft.
.SUN NIGHT...NW wind 25 kt. Seas 3 ft.
.MON...W wind 15 kt. Seas 2 ft.
.MON NIGHT...S wind 20 kt. Seas 3 ft.
.TUE...SW wind 20 kt. Seas 4 ft.
.WED...S wind 20 kt. Seas 7 ft.
.THU...E wind 20 kt. Seas 7 ft.

$$

PKZ138-171400-
Shelikof Strait-
342 PM AKST Sat Dec 16 2017

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

.TONIGHT...S wind 15 kt. Seas 6 ft subsiding to 4 ft after midnight.
.SUN...NW wind 15 kt increasing to 25 kt in the afternoon. Seas 5 ft.
.SUN NIGHT...NW wind 25 kt becoming S 15 kt after midnight. Seas 6 ft.
.MON...W wind 20 kt. Seas 5 ft.
.MON NIGHT...S wind 25 kt. Seas 6 ft.
.TUE...SW wind 25 kt. Seas 7 ft.
.WED...S wind 20 kt. Seas 5 ft.
.THU...E wind 20 kt. Seas 5 ft.

$$

PKZ139-171400-
Cook Inlet Kalgin Island to Point Bede-
342 PM AKST Sat Dec 16 2017

.TONIGHT...SE wind 10 kt becoming NE 15 kt after midnight. Seas 4 ft.
.SUN...N wind 20 kt. Seas 5 ft.
.SUN NIGHT...N wind 10 kt. Seas 3 ft.
.MON...N wind 10 kt. Seas 2 ft.
.MON NIGHT...NE wind 15 kt. Seas 3 ft.
.TUE...W wind 15 kt. Seas 3 ft.
.WED...S wind 15 kt. Seas 4 ft.
.THU...NE wind 15 kt. Seas 4 ft.

$$

PKZ140-171400-
Cook Inlet North of Kalgin Island-
342 PM AKST Sat Dec 16 2017

.TONIGHT...Variable wind less than 10 kt becoming NE 15 kt after
midnight. Seas 1 ft building to 3 ft after midnight.
.SUN...N wind 15 kt diminishing to 10 kt in the afternoon. Seas
3 ft.
.SUN NIGHT...Variable wind less than 10 kt. Seas 1 ft. Patchy
freezing fog.
.MON AND MON NIGHT...NE wind 10 kt. Seas 2 ft.
.TUE THROUGH WED...N wind 10 kt. Seas 3 ft.
.THU...NE wind 15 kt. Seas 3 ft.

$$

PKZ141-171400-
Kachemak Bay-
342 PM AKST Sat Dec 16 2017

.TONIGHT...SE wind 10 kt. Seas 2 ft.
.SUN...NE wind 10 kt becoming N 15 kt in the afternoon. Seas 2 ft.
.SUN NIGHT...N wind 10 kt. Seas 2 ft.
.MON...Variable wind less than 10 kt. Seas 2 ft.
.MON NIGHT...E wind 15 kt. Seas 2 ft.
.TUE THROUGH WED...S wind 15 kt. Seas 3 ft.
.THU...E wind 15 kt. Seas 3 ft.

$$
176 
FZAK51 PAFC 171253
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
353 AM AKST Sun Dec 17 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.

PKZ197-180215-
353 AM AKST Sun Dec 17 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A 991 mb low 60 nm northwest of Port Heiden will move over Kodiak 
Island to 65 nm southwest of Seward at 996 mb this afternoon, then 
move into the eastern Gulf Mon morning. A trough of low pressure 
persists through Tue morning. 

$$

PKZ119-180215-
Cape Suckling to Cape Cleare-
353 AM AKST Sun Dec 17 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...S wind 20 kt in the morning becoming variable 10 kt. Seas
13 ft.
.TONIGHT...E wind 15 kt. Seas 11 ft.
.MON...N wind 15 kt. Seas 8 ft.
.MON NIGHT...W wind 15 kt. Seas 6 ft.
.TUE THROUGH WED...SW wind 25 kt. Seas 11 ft.
.THU...SE wind 25 kt. Seas 14 ft.

$$

PKZ120-180215-
Cape Cleare to Gore Point-
353 AM AKST Sun Dec 17 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...E wind 15 kt becoming N in the afternoon. Seas 12 ft.
.TONIGHT...N wind 20 kt. Seas 9 ft.
.MON...N wind 20 kt in the morning becoming variable 10 kt. Seas
7 ft.
.MON NIGHT...SW wind 20 kt. Seas 5 ft.
.TUE...SW wind 30 kt. Seas 10 ft.
.WED...SW wind 20 kt. Seas 9 ft.
.THU...E wind 25 kt. Seas 18 ft.

$$

PKZ121-180215-
Resurrection Bay-
353 AM AKST Sun Dec 17 2017

.TODAY...N wind 10 kt. Seas 2 ft.
.TONIGHT...N wind 20 kt. Seas 4 ft.
.MON...N wind 20 kt. Seas 4 ft.
.MON NIGHT...S wind 10 kt. Seas 2 ft.
.TUE...S wind 15 kt. Seas 3 ft.
.WED THROUGH THU...N wind 10 kt. Seas 2 ft.

$$

PKZ125-180215-
Prince William Sound-
353 AM AKST Sun Dec 17 2017

.TODAY...NE wind 10 kt increasing to 15 kt in the afternoon. Seas
2 ft. Widespread snow showers.
.TONIGHT...N wind 20 kt. Seas 3 ft.
.MON...N wind 20 kt. Seas 3 ft.
.MON NIGHT...E wind 10 kt. Seas 2 ft.
.TUE...SE wind 20 kt. Seas 4 ft.
.WED...SW wind 15 kt. Seas 3 ft.
.THU...E wind 15 kt. Seas 3 ft.

$$

PKZ126-180215-
Port Valdez-
353 AM AKST Sun Dec 17 2017

.TODAY...Variable wind less than 10 kt. Seas 2 ft. 
.TONIGHT...E wind 10 kt becoming NE 15 kt after midnight. Seas 3
ft.
.MON...NE wind 15 kt diminishing to 10 kt in the afternoon. Seas
3 ft.
.MON NIGHT...NE wind 10 kt. Seas 2 ft.
.TUE THROUGH THU...E wind 10 kt. Seas 2 ft.

$$

PKZ127-180215-
Valdez Narrows-
353 AM AKST Sun Dec 17 2017

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

.TODAY...NE wind 20 kt. Seas 3 ft.
.TONIGHT AND 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...NE wind 20 kt. Seas 3 ft.
.THU...NE wind 25 kt. Seas 3 ft.

$$

PKZ128-180215-
Valdez Arm-
353 AM AKST Sun Dec 17 2017

.TODAY...NE wind 10 kt increasing to 15 kt in the afternoon. Seas
3 ft.
.TONIGHT...NE wind 20 kt. Seas 4 ft.
.MON...N wind 20 kt. Seas 4 ft.
.MON NIGHT...NE wind 10 kt. Seas 2 ft.
.TUE...NE wind 15 kt. Seas 3 ft.
.WED...NE wind 10 kt. Seas 2 ft.
.THU...NE wind 15 kt. Seas 3 ft.

$$

PKZ129-180215-
Passage Canal-
353 AM AKST Sun Dec 17 2017

.TODAY...Variable wind less than 10 kt. Seas 2 ft.
.TONIGHT AND MON...W wind 15 kt. Seas 2 ft.
.MON NIGHT...E wind 10 kt. Seas 2 ft.
.TUE...E wind 15 kt. Seas 2 ft.
.WED...W wind 10 kt. Seas 2 ft.
.THU...E wind 15 kt. Seas 2 ft.

$$

PKZ130-180215-
West of Barren Islands including Kamishak Bay-
353 AM AKST Sun Dec 17 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...NW wind 25 kt. Seas 6 ft.
.TONIGHT...NW wind 30 kt. Seas 9 ft. Freezing spray.
.MON...NW wind 25 kt becoming N 15 kt in the afternoon. Seas 8 ft
subsiding to 4 ft in the afternoon.
.MON NIGHT...SE wind 25 kt. Seas 6 ft.
.TUE...SW wind 25 kt. Seas 7 ft.
.WED...S wind 15 kt. Seas 4 ft.
.THU...E wind 30 kt. Seas 7 ft.

$$

PKZ131-180215-
Barren Islands East-
353 AM AKST Sun Dec 17 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...W wind 15 kt becoming NW 25 kt in the afternoon. Seas
13 ft.
.TONIGHT...NW wind 30 kt. Seas 9 ft.
.MON...NW wind 25 kt. Seas 9 ft.
.MON NIGHT...S wind 25 kt. Seas 7 ft.
.TUE...SW wind 30 kt. Seas 10 ft.
.WED...SW wind 20 kt. Seas 8 ft.
.THU...E wind 30 kt. Seas 19 ft.

$$

PKZ132-180215-
Marmot Island to Sitkinak-
353 AM AKST Sun Dec 17 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...NW wind 25 kt. Seas 15 ft.
.TONIGHT...NW wind 30 kt. Seas 12 ft.
.MON...NW wind 25 kt. Seas 10 ft.
.MON NIGHT...SW wind 30 kt. Seas 8 ft.
.TUE...SW wind 30 kt. Seas 12 ft.
.WED...S wind 25 kt. Seas 9 ft.
.THU...SE wind 30 kt. Seas 19 ft.

$$

PKZ136-180215-
Chiniak Bay-
353 AM AKST Sun Dec 17 2017

.TODAY...W wind 10 kt becoming NW 20 kt in the afternoon. Seas 3
ft.
.TONIGHT...NW wind 20 kt. Seas 3 ft.
.MON...NW wind 15 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.MON NIGHT...S wind 25 kt. Seas 3 ft.
.TUE...SW wind 25 kt. Seas 4 ft.
.WED...S wind 15 kt. Seas 4 ft.
.THU...E wind 25 kt. Seas 9 ft.

$$

PKZ137-180215-
Marmot Bay-
353 AM AKST Sun Dec 17 2017

.TODAY...NW wind 10 kt increasing to 20 kt in the afternoon. Seas
2 ft.
.TONIGHT...NW wind 20 kt. Seas 3 ft.
.MON...W wind 15 kt diminishing to 10 kt in the afternoon. Seas
2 ft.
.MON NIGHT...S wind 20 kt. Seas 4 ft.
.TUE...SW wind 25 kt. Seas 4 ft.
.WED...S wind 15 kt. Seas 4 ft.
.THU...E wind 25 kt. Seas 10 ft.

$$

PKZ138-180215-
Shelikof Strait-
353 AM AKST Sun Dec 17 2017

.TODAY...NW wind 20 kt. Seas 5 ft.
.TONIGHT...NW wind 20 kt. Seas 6 ft.
.MON...W wind 20 kt. Seas 5 ft.
.MON NIGHT...S wind 30 kt. Seas 8 ft.
.TUE...SW wind 30 kt. Seas 9 ft.
.WED...S wind 20 kt. Seas 6 ft.
.THU...E wind 25 kt. Seas 7 ft.

$$

PKZ139-180215-
Cook Inlet Kalgin Island to Point Bede-
353 AM AKST Sun Dec 17 2017

.TODAY...N wind 20 kt. Seas 5 ft.
.TONIGHT...N wind 10 kt. Seas 2 ft. Patchy freezing fog.
.MON...N wind 10 kt. Seas 2 ft. Patchy freezing fog.
.MON NIGHT...NE wind 20 kt. Seas 5 ft.
.TUE...W wind 20 kt. Seas 5 ft.
.WED...SW wind 15 kt. Seas 4 ft.
.THU...NE wind 20 kt. Seas 5 ft.

$$

PKZ140-180215-
Cook Inlet North of Kalgin Island-
353 AM AKST Sun Dec 17 2017

.TODAY...N wind 15 kt diminishing to 10 kt in the afternoon. Seas
3 ft. Patchy freezing fog.
.TONIGHT...Variable wind less than 10 kt. Seas 2 ft. Areas of
freezing fog.
.MON...Variable wind less than 10 kt becoming NE 10 kt in the
afternoon. Seas 2 ft. Areas of freezing fog.
.MON NIGHT...NE wind 15 kt. Seas 3 ft.
.TUE...NW wind 15 kt. Seas 3 ft.
.WED THROUGH THU...N wind 15 kt. Seas 4 ft.

$$

PKZ141-180215-
Kachemak Bay-
353 AM AKST Sun Dec 17 2017

.TODAY...NE wind 10 kt becoming N 15 kt in the afternoon. Seas 2
ft.
.TONIGHT...N wind 10 kt. Seas 2 ft.
.MON...Variable wind less than 10 kt. Seas 2 ft.
.MON NIGHT...SE wind 15 kt. Seas 2 ft.
.TUE...SW wind 20 kt. Seas 6 ft.
.WED...S wind 15 kt. Seas 3 ft.
.THU...E wind 20 kt. Seas 3 ft.

$$
690 
FZAK51 PAFC 180009
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
309 PM AKST Sun Dec 17 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.

PKZ197-181245-
309 PM AKST Sun Dec 17 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...
A 998 mb low 120 nm South of Middleton Island exits the Gulf 210 nm 
Southwest of Klawock at 1012 mb for Mon afternoon. High pressure 
slides across the Gulf through Tue afternoon. A front crosses the 
Western Gulf by Tue afternoon.

$$

PKZ119-181245-
Cape Suckling to Cape Cleare-
309 PM AKST Sun Dec 17 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...E wind 15 kt. Seas 11 ft.
.MON...N wind 15 kt. Gusts to 30 kt out of the Copper River Delta. 
Seas 8 ft.
.MON NIGHT...SW wind 15 kt. Seas 6 ft.
.TUE...S wind 25 kt. Seas 6 ft.
.TUE NIGHT...SW wind 30 kt. Seas 11 ft.
.WED...SW wind 25 kt. Seas 11 ft.
.THU...SE wind 25 kt. Seas 14 ft.
.FRI...SE wind 25 kt. Seas 17 ft.

$$

PKZ120-181245-
Cape Cleare to Gore Point-
309 PM AKST Sun Dec 17 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 20 kt. Seas 9 ft.
.MON...N wind 20 kt. Gusts to 30 kts out of bays and passes. Seas 7 ft.
.MON NIGHT...S wind 20 kt. Seas 5 ft.
.TUE...S wind 30 kt. Seas 10 ft.
.TUE NIGHT...W wind 30 kt. Seas 10 ft.
.WED...SW wind 25 kt. Seas 8 ft.
.THU...E wind 25 kt. Seas 18 ft.
.FRI...SE wind 20 kt. Seas 18 ft.

$$

PKZ121-181245-
Resurrection Bay-
309 PM AKST Sun Dec 17 2017

.TONIGHT...N wind 20 kt. Seas 4 ft.
.MON...N wind 20 kt. Seas 4 ft.
.MON NIGHT...Variable wind 10 kt becoming S after midnight. Seas 2 ft.
Snow.
.TUE...S wind 15 kt. Seas 3 ft.
.TUE NIGHT...N wind 10 kt. Seas 2 ft.
.WED THROUGH FRI...N wind 10 kt. Seas 2 ft.

$$

PKZ125-181245-
Prince William Sound-
309 PM AKST Sun Dec 17 2017

.TONIGHT...N wind 20 kt. Seas 3 ft.
.MON...N wind 20 kt. Seas 3 ft.
.MON NIGHT...Variable wind less than 10 kt becoming E 15 kt after
midnight. Seas 2 ft.
.TUE...E wind 20 kt. Seas 4 ft.
.TUE NIGHT...SW wind 20 kt. Seas 4 ft.
.WED...SW wind 15 kt. Seas 3 ft.
.THU THROUGH FRI...E wind 15 kt. Seas 3 ft.

$$

PKZ126-181245-
Port Valdez-
309 PM AKST Sun Dec 17 2017

.TONIGHT...E wind 10 kt becoming NE 15 kt after midnight. Seas 3 ft.
.MON...NE wind 15 kt diminishing to 10 kt in the afternoon. Seas
3 ft.
.MON NIGHT...NE wind 10 kt in the evening becoming variable less
than 10 kt. Seas 2 ft.
.TUE AND TUE NIGHT...E wind 10 kt. Seas 2 ft.
.WED THROUGH FRI...NE wind 10 kt. Seas 2 ft.

$$

PKZ127-181245-
Valdez Narrows-
309 PM AKST Sun Dec 17 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...NE wind 15 kt increasing to 25 kt after midnight. Seas 3 
ft.
.MON...NE wind 25 kt. Seas 3 ft.
.MON NIGHT...NE wind 15 kt diminishing to 10 kt after midnight.
Seas 3 ft.
.TUE...NE wind 10 kt. Seas 2 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 2 ft.
.WED...NE wind 20 kt. Seas 3 ft.
.THU...NE wind 25 kt. Seas 3 ft.
.FRI...NE wind 20 kt. Seas 3 ft.

$$

PKZ128-181245-
Valdez Arm-
309 PM AKST Sun Dec 17 2017

.TONIGHT...NE wind 20 kt. Seas 4 ft.
.MON...N wind 20 kt. Seas 4 ft.
.MON NIGHT...NE wind 10 kt. Seas 2 ft.
.TUE...NE wind 15 kt. Seas 3 ft.
.TUE NIGHT...Variable wind 15 kt. Seas 2 ft.
.WED...NE wind 10 kt. Seas 2 ft.
.THU THROUGH FRI...NE wind 15 kt. Seas 3 ft.

$$

PKZ129-181245-
Passage Canal-
309 PM AKST Sun Dec 17 2017

.TONIGHT...W wind 15 kt. Seas 2 ft.
.MON...W wind 15 kt. Seas 2 ft.
.MON NIGHT...Variable wind 10 kt becoming E after midnight. Seas 2 ft.
.TUE...E wind 20 kt. Seas 3 ft.
.TUE NIGHT...W wind 15 kt. Seas 2 ft.
.WED...W wind 15 kt. Seas 2 ft.
.THU THROUGH FRI...E wind 15 kt. Seas 2 ft.

$$

PKZ130-181245-
West of Barren Islands including Kamishak Bay-
309 PM AKST Sun Dec 17 2017

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

.TONIGHT...NW wind 30 kt. Seas 9 ft. Freezing spray.
.MON...NW wind 25 kt becoming N 15 kt in the afternoon. Seas 9 ft
subsiding to 4 ft in the afternoon.
.MON NIGHT...SE wind 25 kt. Seas 7 ft. Snow.
.TUE...S wind 25 kt. Seas 8 ft.
.TUE NIGHT...SW wind 20 kt. Seas 5 ft.
.WED...S wind 15 kt. Seas 4 ft.
.THU...E wind 30 kt. Seas 7 ft.
.FRI...E wind 20 kt. Seas 5 ft.

$$

PKZ131-181245-
Barren Islands East-
309 PM AKST Sun Dec 17 2017

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

.TONIGHT...NW wind 30 kt. Seas 9 ft.
.MON...NW wind 25 kt decreasing to 15 kt by the afternoon.. Seas 9 
ft.
.MON NIGHT...S wind 15 kt increasing to 25 kt by midnight. Seas 6 
ft.
.TUE...S wind 30 kt. Seas 10 ft.
.TUE NIGHT...W wind 25 kt. Seas 9 ft.
.WED...SW wind 20 kt. Seas 7 ft.
.THU...E wind 30 kt. Seas 19 ft.
.FRI...SE wind 25 kt. Seas 19 ft.

$$

PKZ132-181245-
Marmot Island to Sitkinak-
309 PM AKST Sun Dec 17 2017

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

.TONIGHT...NW wind 30 kt. Seas 12 ft.
.MON...NW wind 25 kt becoming SW 15 kt by the afternoon. Seas 10 ft.
.MON NIGHT...SW wind 25 kt. Seas 8 ft.
.TUE...SW wind 30 kt. Seas 12 ft.
.TUE NIGHT...W wind 25 kt. Seas 12 ft.
.WED...S wind 25 kt. Seas 9 ft.
.THU...SE wind 30 kt. Seas 19 ft.
.FRI...SE wind 20 kt. Seas 19 ft.

$$

PKZ136-181245-
Chiniak Bay-
309 PM AKST Sun Dec 17 2017

.TONIGHT...NW wind 20 kt. Seas 3 ft.
.MON...NW wind 15 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.MON NIGHT...S wind 20 kt. Seas 3 ft.
.TUE...SW wind 25 kt. Seas 4 ft.
.TUE NIGHT...SW wind 15 kt. Seas 2 ft.
.WED...S wind 15 kt. Seas 4 ft.
.THU...E wind 25 kt. Seas 9 ft.
.FRI...SE wind 15 kt. Seas 4 ft.

$$

PKZ137-181245-
Marmot Bay-
309 PM AKST Sun Dec 17 2017

.TONIGHT...NW wind 20 kt. Seas 3 ft.
.MON...W wind 15 kt diminishing to 10 kt in the afternoon. Seas
2 ft.
.MON NIGHT...S wind 20 kt. Seas 3 ft.
.TUE...S wind 20 kt. Seas 3 ft.
.TUE NIGHT...SW wind 15 kt. Seas 3 ft.
.WED...S wind 15 kt. Seas 4 ft.
.THU...E wind 25 kt. Seas 10 ft.
.FRI...SE wind 15 kt. Seas 4 ft.

$$

PKZ138-181245-
Shelikof Strait-
309 PM AKST Sun Dec 17 2017

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...NW wind 20 kt. Seas 6 ft.
.MON...W wind 20 kt. Seas 4 ft.
.MON NIGHT...S wind 30 kt. Seas 8 ft. Rain.
.TUE...SW wind 30 kt. Seas 10 ft.
.TUE NIGHT...SW wind 20 kt. Seas 5 ft.
.WED...S wind 20 kt. Seas 5 ft.
.THU...E wind 25 kt. Seas 7 ft.
.FRI...E wind 15 kt. Seas 4 ft.

$$

PKZ139-181245-
Cook Inlet Kalgin Island to Point Bede-
309 PM AKST Sun Dec 17 2017

.TONIGHT...N wind 10 kt. Seas 2 ft. Patchy freezing fog.
.MON...N wind 10 kt. Seas 2 ft. Patchy freezing fog.
.MON NIGHT...NE wind 20 kt. Seas 4 ft. Freezing spray. Snow.
.TUE...SW wind 25 kt. Seas 6 ft.
.TUE NIGHT...SW wind 20 kt. Seas 6 ft.
.WED...SW wind 20 kt. Seas 5 ft.
.THU...NE wind 20 kt. Seas 5 ft.
.FRI...NE wind 15 kt. Seas 4 ft.

$$

PKZ140-181245-
Cook Inlet North of Kalgin Island-
309 PM AKST Sun Dec 17 2017

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft. Areas of
freezing fog.
.MON...Variable wind less than 10 kt becoming NE 10 kt in the
afternoon. Seas 2 ft. Areas of freezing fog.
.MON NIGHT...NE wind 10 kt increasing to 15 kt after midnight.
Seas 2 ft.
.TUE...N wind 10 kt. Seas 2 ft.
.TUE NIGHT...SW wind 20 kt. Seas 5 ft.
.WED...NW wind 15 kt. Seas 4 ft.
.THU THROUGH FRI...NE wind 15 kt. Seas 4 ft.

$$

PKZ141-181245-
Kachemak Bay-
309 PM AKST Sun Dec 17 2017

.TONIGHT...N wind 10 kt. Seas 2 ft.
.MON...Variable wind less than 10 kt. Seas 2 ft.
.MON NIGHT...E wind 10 kt becoming SE 15 kt after midnight. Seas
2 ft. Snow and rain.
.TUE...S wind 25 kt. Seas 4 ft.
.TUE NIGHT...SW wind 20 kt. Seas 4 ft.
.WED...S wind 15 kt. Seas 4 ft.
.THU...E wind 20 kt. Seas 3 ft.
.FRI...E wind 15 kt. Seas 2 ft.

$$

What forecasters said that day

The local office's own words before this small craft advisory 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 small craft advisory went out at Dec 15, 4:46 PM AKST, 10 hours 21 minutes earlier.

Area forecast discussion, Dec 15, 4:46 PM AKST, 10 hours 21 minutes before
Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
446 PM AKST Fri Dec 15 2017

.ANALYSIS AND UPPER LEVELS...

The atmosphere is becoming more dynamic again across Southcentral
as a large Bering low shifts east along a very difluent upper
level North Pacific jet stream which is steamrolling northeast
into the Gulf of Alaska. A solid gale force (40 knots) front
associated with the aforementioned upper level jet was captured
moving across Kodiak into the western Gulf of Alaska at noon. This
has already brought over an inch of rain to parts of Kodiak
Island, and this rain will quickly spread north toward the Gulf
Coast later today. Over the Bering Sea, there is a well-defined
occluded low moving north across Bristol Bay toward Nunivak
Island. This is bringing strong gale force winds and rain/snow to
most of the Southwest coast. There is another closed low center
just north of Adak Island supporting another region of gale force
winds.

&&

.MODEL DISCUSSION...

The numerical models have now come into great agreement with the
strong front moving toward the North Gulf Coast this evening. Over
the past few days, there was quite a lot of disagreement among
the models with the potential for a closed low along the coast.
Some models (mostly the GFS) were very strong with the closed low
scenario whereas the ECMWF and Canadian were faster and had more
of a trough axis instead of a closed low...which also featured a
meso low moving north through Cook Inlet. Now all models are in
agreement with the latter solution, so winds are now expected to
come down through Prince William Sound, down Passage Canal, and
then down Turnagain Arm. Some winds will also come through
Anchorage from the southeast overnight as the front passes
through. In terms of precipitation, the regime is expected to
become showery behind the front given the rather impressive
instability, so models are not in good agreement with that and are
expected to remain so for the next couple days.

&&

.AVIATION...
PANC...A front approaching the coast will bring threats for
flurries and possibly a little light rain this evening and early
tonight. After the front passes some southeast winds are expected
to impact the terminal with the chance for a mix of rain and snow
which may drop CIGS/VIS to MVFR for a brief time. After that,
expect snow shower chances through the day Saturday as unstable
air moves over the terminal.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
The strong front is pushing in to the Gulf of Alaska with a triple
point low starting to form south of Kodiak Island. A short wave is
ejecting out of the base of the low now over the Alaska Peninsula
heading toward Shelikof Strait then up Cook Inlet tonight. Rain
will spread from Kodiak east into Prince William Sound this
evening and mix with or change to snow in the northern Sound and
especially the higher elevations tonight. The short wave rapidly
moving up the Inlet will complicate the forecast, particularly
the wind. The Turnagain Arm and Hillside wind should be
problematic. The current model solutions don't capture the
magnitude of the current wind, We're also concerned about another
shot of wind associated with the shortwave that is not captured
well overnight into tomorrow morning. We're still anticipating the
typical downslope drying across the coastal mountains as the
front moves through and with the strong wind again overnight and
tomorrow. Another concern is how much precipitation makes it into
the Copper River Basin. At this point it looks like the downslope
drying across the Chugach should prevent snow in Glennallen but
expect snow along the Alaska Range and Talkeetna Mountains in the
upslope flow. The Susitna Valley, once the flow becomes southerly,
should see a shot of snow along the Alaska Range and north of
Talkeetna, though not heavy.

&&

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

A strong low continues to move up the Kuskokwim coast this
afternoon, which is showing up nicely on the Bethel Doppler
radar, with a strongly occluded front extending east through the
lower Kuskokwim Delta. Strong wind gusts have been observed in
advance of the front, with winds quickly dropping off following
frontal passage allowing for some rain showers to develop or mix
in with the snow, as warmer air surges inland in the lower levels.

Meanwhile, robust cold advection in the mid-levels is quickly
moving inland south of these features, with plenty of instability
(relatively speaking) for some graupel or small hail to develop
based on the radar and observational data across eastern Bristol
Bay and adjacent locations. Additionally, numerical guidance
continues to show steep mid-level lapse rates approaching 9 deg.
C/km and total totals above 60. Vort maxes rotation around this
the trough axis that extends from a western Bering low to the
Kuskokwim low may provide enough of a burst in ascent aloft to aid
in updraft strength to possible allow a stray lightning strike or
two to develop. However, temporal and coverage uncertainties
precluded this being adding to the coastal land or marine
forecast zones.

As the western Bering low heads towards the AKPEN by Sunday
morning, the Kuskokwim low will rotate back southward with the
pair exhibiting a Fujiwhara effect as they depart the region by
Sunday afternoon. Until then, showery precipitation will continue
to dominate your weather

&&

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

Quite an interesting setup is in place as a 971mb low north of
Adak, which has been "wobbling in place" for the last 36 hours or
so has started its southeastward journey. Meanwhile, a 962 mb low
near Nunivak Island will halt its northward progression, and make
a U-turn as it starts to be influenced more by the incoming low.
These systems will rotate around each other in a unique fashion as
described above, with strong cold advection continuing along
their southern and western flanks. This has been quite evident in
the observational data, with cloud top cooling also noted on the
infra-red satellite loop. Models continue to show decent
instability for this time of year, and given the instability
parameters described about, an isolated thunderstorm can't be
ruled out. However, graupel or small hail is a distinct
possibility with any heavier shower that develops.

A transitory ridge will shift from west to east across the
Aleutians towards the Pribilof Islands for tomorrow, as todays
systems depart the region and a low rapidly deepens to 944 mb
across the western Bering by Sunday morning, with an attendant
cold front stretching south. This front will impact western
portions of the area with storm near storm force sustained winds
developing, and seas rapidly increasing in height given a
favorable fetch augmented by the baroclinic winds.

&&

.LONG TERM FORECAST (Days 3 through 7...Mon through Fri)...
The weather picture for next week is starting to become clearer.
There are 2 major features to focus on. The first will be a very
deep low over the Western Bering Mon and its associated front. The
low will bottom out somewhere in the 945 mb range late Sun into
early Mon. But its trek across the Bering will impact the whole
area to start the week. Along the front, storm-force winds and
moderate rain should be expected through the Aleutian chain as it
pushes from west to east. Behind the front, expect widespread
showers (transitioning from rain to snow) and gusty winds as cold
air wraps around. As the front impacts SW AK, it will start out as
snow with some gusty winds. This could create some difficult
travel conditions, so stay tuned to this portion of the forecast.
But with warm air and onshore flow, the snow should transition
fairly quickly to rain. Today models have come into better
agreement that this feature will hold together long enough to make
it into the Cook Inlet region. If a few ingredients hold together,
this could have the making of a decent snow event for the
Anchorage area. But there is still a lot of time and variables
that have to match before there is much certainty in this
solution.

The second major feature will be a building ridge over the North
Pacific to end the week. There is still abundant uncertainty as to
exactly where this feature will establish itself. On its western
edge, it will bring moderate to heavy precipitation and warm and
windy conditions. Underneath the ridge axis, it will likely be
cold and foggy. Stay tuned to the forecast to see exactly how this
pattern unfolds and what the sensible weather will be at the
surface as we move towards Christmas Weekend.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Storm 119. Gales 120 125 150 155 165 170-181 185 351 352
411-414.

&&

SYNOPSIS AND MODEL DISCUSSION...JA
SOUTHCENTRAL ALASKA...SA
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...PD
LONG TERM...MO

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 15, 3:20 PM AKSTSmall Craft AdvisoryAFC60 hr
Dec 15, 3:38 PM AKSTGale WarningAFC12 hr
Dec 15, 3:40 PM AKSTGale WarningAFC4 days
Dec 15, 3:40 PM AKSTSmall Craft AdvisoryAFC36 hr
Dec 16, 3:17 AM AKSTStorm WarningAFC6 days
Dec 16, 3:18 AM AKSTSmall Craft AdvisoryAFC12 hr
Dec 16, 3:18 AM AKSTStorm WarningAFC48 hr

Nearby

Small Craft Advisories in Alaska, 2017Every small craft advisory 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.