Alert archive / Alaska / Small Craft Advisories in 2021

Small Craft Advisory 1009, NWS Anchorage, AK

December 17, 2021

NWS Anchorage, AK issued this small craft advisory at Dec 17, 2021, 3:48 AM AKST. It was in force for 59 hr.

The area

The counties it named.

The facts

Issued
Dec 17, 2021, 3:48 AM AKST (12:48 UTC)
Expired
Dec 19, 2021, 3:16 PM AKST
In force
59 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

177 
FZAK51 PAFC 171248
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
348 AM AKST Fri Dec 17 2021

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-
348 AM AKST Fri Dec 17 2021
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A 1006 mb low 60 nm south of Middleton Island moves toward the 
Southeast Panhandle through Fri afternoon. A 1012 mb low develops
60 nm south of Seward Sat morning and moves into the northeast 
Gulf Sat afternoon.

$$

PKZ119-180215-
Cape Suckling to Cape Cleare-
348 AM AKST Fri Dec 17 2021

.TODAY...N wind 20 kt. Seas 6 ft.
.TONIGHT...NW wind 15 kt. Seas 7 ft.
.SAT...W wind 20 kt. Seas 7 ft.
.SAT NIGHT...NW wind 20 kt. Seas 8 ft.
.SUN...N wind 20 kt. Seas 8 ft.
.MON...NW wind 20 kt. Seas 5 ft.
.TUE...NW wind 30 kt. Seas 11 ft.

$$

PKZ120-180215-
Cape Cleare to Gore Point-
348 AM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY SATURDAY...

.TODAY...NW wind 15 kt. Seas 6 ft.
.TONIGHT...W wind 15 kt. Seas 5 ft.
.SAT...W wind 15 kt increasing to 25 kt in the afternoon. Seas 9 ft.
.SAT NIGHT...NW wind 25 kt. Seas 9 ft.
.SUN...NW wind 20 kt. Seas 7 ft.
.MON...W wind 25 kt. Seas 5 ft.
.TUE...NW wind 30 kt. Seas 11 ft.

$$

PKZ121-180215-
Resurrection Bay-
348 AM AKST Fri Dec 17 2021

.TODAY...N wind 10 kt early increasing to 20 kt. Seas 4 ft. Freezing
spray.
.TONIGHT...N wind 10 kt in the evening becoming variable less than
10 kt. Seas 2 ft.
.SAT...Variable wind less than 10 kt becoming N 20 kt in the
afternoon. Seas 2 ft building to 4 ft in the afternoon.
.SAT NIGHT...N wind 20 kt. Seas 4 ft.
.SUN...N wind 20 kt. Seas 4 ft.
.MON...N wind 15 kt. Seas 3 ft.
.TUE...N wind 20 kt. Seas 4 ft.

$$

PKZ125-180215-
Prince William Sound-
348 AM AKST Fri Dec 17 2021

.TODAY...N wind 20 kt. Seas 3 ft.
.TONIGHT...NW wind 10 kt becoming E after midnight. Seas 2 ft.
.SAT...Variable wind less than 10 kt becoming NW 20 kt in the
afternoon. Seas 3 ft.
.SAT NIGHT...NW wind 25 kt. Seas 4 ft.
.SUN...N wind 15 kt. Seas 3 ft.
.MON...NE wind 10 kt. Seas 2 ft.
.TUE...N wind 20 kt. Seas 4 ft.

$$

PKZ126-180215-
Port Valdez-
348 AM AKST Fri Dec 17 2021

.TODAY...NE wind 15 kt. Seas 3 ft. Freezing spray.
.TONIGHT...NE wind 15 kt. Seas 3 ft. Freezing spray.
.SAT...NE wind 10 kt increasing to 15 kt in the afternoon. Seas
3 ft. Freezing spray.
.SAT NIGHT...NE wind 20 kt. Seas 4 ft.
.SUN...N wind 20 kt. Seas 4 ft.
.MON...Variable wind 10 kt. Seas 2 ft.
.TUE...N wind 20 kt. Seas 4 ft.

$$

PKZ127-180215-
Valdez Narrows-
348 AM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...NE wind 25 kt. Seas 3 ft. Freezing spray.
.TONIGHT...NE wind 25 kt. Seas 3 ft. Freezing spray.
.SAT...N wind 30 kt. Seas 3 ft. Freezing spray.
.SAT NIGHT...N wind 30 kt. Seas 3 ft.
.SUN...N wind 25 kt. Seas 3 ft.
.MON...N wind 15 kt. Seas 3 ft.
.TUE...N wind 25 kt. Seas 3 ft.

$$

PKZ128-180215-
Valdez Arm-
348 AM AKST Fri Dec 17 2021

.TODAY...NE wind 20 kt. Seas 4 ft. Freezing spray.
.TONIGHT...NE wind 20 kt. Seas 4 ft.
.SAT...NE wind 20 kt. Seas 4 ft.
.SAT NIGHT...NE wind 25 kt. Seas 5 ft.
.SUN...N wind 20 kt. Seas 4 ft.
.MON...N wind 10 kt. Seas 2 ft.
.TUE...N wind 20 kt. Seas 4 ft.

$$

PKZ129-180215-
Passage Canal-
348 AM AKST Fri Dec 17 2021

.TODAY...W wind 10 kt early increasing to 20 kt. Gusts to 35 kt near
Whittier. Seas 3 ft. Freezing spray.
.TONIGHT...W wind 15 kt in the evening becoming variable less than
10 kt. Gusts to 25 kt near Whittier in the evening. Seas 2 ft.
.SAT...Variable wind less than 10 kt becoming W 10 kt in the
afternoon. Seas 2 ft.
.SAT NIGHT...W wind 20 kt. Seas 3 ft.
.SUN...W wind 20 kt. Seas 3 ft.
.MON...Variable wind less than 10 kt. Seas 2 ft.
.TUE...W wind 25 kt. Seas 4 ft.

$$

PKZ130-180215-
West of Barren Islands including Kamishak Bay-
348 AM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY TONIGHT AND SATURDAY...

.TODAY...NW wind 20 kt becoming SE 15 kt in the afternoon. Seas 7 
ft.
.TONIGHT...SE wind 25 kt becoming NW after midnight. Seas 5 ft.
Snow and rain.
.SAT...W wind 15 kt increasing to 25 kt in the afternoon. Seas 5
ft building to 10 ft in the afternoon.
.SAT NIGHT...W wind 30 kt. Seas 9 ft.
.SUN...W wind 15 kt. Seas 5 ft.
.MON...W wind 30 kt. Seas 7 ft.
.TUE...NW wind 35 kt. Seas 10 ft.

$$

PKZ131-180215-
Barren Islands East-
348 AM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY TODAY AND SATURDAY...

.TODAY...NW wind 25 kt.  Seas 8 ft.
.TONIGHT...SW wind 20 kt. Seas 7 ft.
.SAT...W wind 20 kt increasing to 30 kt in the afternoon. Seas
10 ft.
.SAT NIGHT...W wind 35 kt. Seas 14 ft.
.SUN...W wind 25 kt. Seas 11 ft.
.MON...W wind 30 kt. Seas 8 ft.
.TUE...NW wind 40 kt. Seas 15 ft.

$$

PKZ132-180215-
Marmot Island to Sitkinak-
348 AM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...NW wind 20 kt. Seas 8 ft.
.TONIGHT...SW wind 20 kt. Seas 9 ft.
.SAT...W wind 30 kt. Seas 13 ft.
.SAT NIGHT...W wind 30 kt. Seas 13 ft.
.SUN THROUGH MON...W wind 25 kt. Seas 10 ft.
.TUE...NW wind 35 kt. Seas 13 ft.

$$

PKZ136-180215-
Chiniak Bay-
348 AM AKST Fri Dec 17 2021

.TODAY...W wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.TONIGHT...SW wind 15 kt. Seas 3 ft.
.SAT...W wind 20 kt. Seas 3 ft.
.SAT NIGHT...W wind 20 kt. Seas 3 ft.
.SUN...W wind 10 kt. Seas 2 ft.
.MON...SW wind 15 kt. Seas 2 ft.
.TUE...NW wind 25 kt. Seas 4 ft.

$$

PKZ137-180215-
Marmot Bay-
348 AM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY SATURDAY...

.TODAY...W wind 15 kt. Seas 2 ft.
.TONIGHT...S wind 10 kt. Seas 3 ft.
.SAT...W wind 25 kt. Seas 6 ft.
.SAT NIGHT...W wind 20 kt. Seas 4 ft.
.SUN...W wind 15 kt. Seas 3 ft.
.MON...SW wind 20 kt. Seas 3 ft.
.TUE...NW wind 30 kt. Seas 4 ft.

$$

PKZ138-180215-
Shelikof Strait-
348 AM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY TONIGHT AND SATURDAY...

.TODAY...W wind 20 kt. Seas 5 ft.
.TONIGHT...S wind 25 kt. Seas 6 ft.
.SAT...W wind 30 kt. Seas 7 ft.
.SAT NIGHT...W wind 25 kt. Seas 5 ft.
.SUN...W wind 25 kt. Seas 3 ft.
.MON...SW wind 20 kt. Seas 5 ft.
.TUE...W wind 25 kt. Seas 6 ft.

$$

PKZ139-180215-
Cook Inlet Kalgin Island to Point Bede-
348 AM AKST Fri Dec 17 2021

.TODAY...N wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.TONIGHT...NE wind 20 kt. Seas 3 ft. Freezing spray. Snow.
.SAT...N wind 10 kt becoming W 15 kt in the afternoon. Seas 3 ft.
.SAT NIGHT...NE wind 10 kt. Seas 3 ft.
.SUN...N wind 10 kt. Seas 3 ft.
.MON...N wind 15 kt. Seas 3 ft.
.TUE...NW wind 20 kt. Seas 5 ft.

$$

PKZ140-180215-
Cook Inlet North of Kalgin Island-
348 AM AKST Fri Dec 17 2021

.TODAY...Variable wind less than 10 kt.
.TONIGHT...NE wind 10 kt. Snow.
.SAT...NW wind 10 kt in the morning becoming variable less than
10 kt.
.SAT NIGHT...NE wind 10 kt.
.SUN THROUGH MON...N wind 10 kt.
.TUE...NW wind 10 kt.

$$

PKZ141-180215-
Kachemak Bay-
348 AM AKST Fri Dec 17 2021

.TODAY...Variable wind less than 10 kt. Seas 2 ft.
.TONIGHT...E wind 10 kt becoming SE 20 kt after midnight. Seas 2 ft
building to 4 ft after midnight. Snow.
.SAT...W wind 15 kt becoming SE 10 kt in the afternoon. Seas 4 ft
subsiding to 2 ft in the afternoon. Snow.
.SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...W wind 10 kt. Seas 2 ft.
.MON...W wind 15 kt. Seas 4 ft.
.TUE...NW wind 20 kt. Seas 4 ft.

$$
5 follow-up statements
166 
FZAK51 PAFC 180034
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
334 PM AKST Fri Dec 17 2021

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.

PKZ197-181330-
334 PM AKST Fri Dec 17 2021
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A 1013 mb low develops 50 nm south of Seward Sat morning and 
weakens as it moves into the northeast Gulf Sat night. High 
pressure builds across the Gulf on Sunday.

$$

PKZ119-181330-
Cape Suckling to Cape Cleare-
334 PM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...NW wind 15 kt. Seas 7 ft.
.SAT...W wind 20 kt. Seas 7 ft.
.SAT NIGHT...NW wind 20 kt. Gusts to 40 kt out of the Copper River 
Delta. Seas 8 ft.
.SUN...N wind 20 kt. Seas 8 ft.
.SUN NIGHT...S wind 15 kt. Seas 6 ft.
.MON...W wind 20 kt. Seas 5 ft.
.TUE THROUGH WED...N wind 30 kt. Seas 11 ft.

$$

PKZ120-181330-
Cape Cleare to Gore Point-
334 PM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY SATURDAY AND SATURDAY NIGHT...

.TONIGHT...W wind 15 kt. Seas 6 ft.
.SAT...W wind 15 kt becoming NW 25 kt in the afternoon. Seas 10 ft.
.SAT NIGHT...NW wind 25 kt. Seas 9 ft.
.SUN AND SUN NIGHT...NW wind 20 kt. Seas 6 ft.
.MON...W wind 25 kt. Seas 5 ft.
.TUE...NW wind 30 kt. Seas 11 ft.
.WED...NW wind 25 kt. Seas 8 ft.

$$

PKZ121-181330-
Resurrection Bay-
334 PM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...N wind 15 kt in the evening becoming variable less than 
10 kt. Seas 2 ft.
.SAT...Variable wind less than 10 kt becoming N 20 kt in the
afternoon. Seas 2 ft building to 4 ft in the afternoon. Freezing
spray developing in the afternoon.
.SAT NIGHT...N wind 25 kt. Seas 5 ft. Freezing spray.
.SUN...N wind 20 kt. Seas 4 ft.
.SUN NIGHT...N wind 10 kt. Seas 2 ft.
.MON...N wind 15 kt. Seas 3 ft.
.TUE...N wind 20 kt. Seas 4 ft.
.WED...N wind 15 kt. Seas 3 ft.

$$

PKZ125-181330-
Prince William Sound-
334 PM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...NW wind 10 kt in the evening becoming variable less
than 10 kt. Seas 2 ft.
.SAT...NE wind 10 kt becoming NW 15 kt in the afternoon. Seas 3 ft.
.SAT NIGHT...NW wind 25 kt. Seas 4 ft.
.SUN...N wind 15 kt. Seas 3 ft.
.SUN NIGHT...NE wind 10 kt. Seas 2 ft.
.MON...NE wind 10 kt. Seas 2 ft.
.TUE THROUGH WED...N wind 20 kt. Seas 4 ft.

$$

PKZ126-181330-
Port Valdez-
334 PM AKST Fri Dec 17 2021

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

$$

PKZ127-181330-
Valdez Narrows-
334 PM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...NE wind 25 kt. Seas 3 ft. Freezing spray.
.SAT...N wind 30 kt. Seas 3 ft. Freezing spray.
.SAT NIGHT...N wind 30 kt. Seas 3 ft. Freezing spray.
.SUN...N wind 30 kt. Seas 3 ft.
.SUN NIGHT...N wind 20 kt. Seas 3 ft.
.MON...N wind 20 kt. Seas 3 ft.
.TUE THROUGH WED...N wind 25 kt. Seas 3 ft.

$$

PKZ128-181330-
Valdez Arm-
334 PM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...NE wind 20 kt. Seas 4 ft. Freezing spray.
.SAT...NE wind 20 kt. Seas 4 ft.
.SAT NIGHT...NE wind 25 kt. Seas 5 ft.
.SUN...N wind 20 kt. Seas 4 ft.
.SUN NIGHT...N wind 15 kt. Seas 3 ft.
.MON...N wind 10 kt. Seas 2 ft.
.TUE THROUGH WED...N wind 20 kt. Seas 4 ft.

$$

PKZ129-181330-
Passage Canal-
334 PM AKST Fri Dec 17 2021

.TONIGHT...W wind 15 kt in the evening becoming variable less than
10 kt. Gusts to 35 kt near Whittier in the evening. Seas 2 ft. 
Freezing spray.
.SAT...Variable wind less than 10 kt becoming W 15 kt in the
afternoon. Gusts to 30 kt developing near Whittier in the afternoon. Seas
2 ft. Freezing spray.
.SAT NIGHT...W wind 20 kt. Gusts to 35 kt near Whittier. Seas 3 ft. 
Freezing spray.
.SUN...W wind 20 kt. Seas 3 ft.
.SUN NIGHT...W wind 10 kt. Seas 2 ft.
.MON...Variable wind less than 10 kt. Seas 2 ft.
.TUE THROUGH WED...W wind 25 kt. Seas 4 ft.

$$

PKZ130-181330-
West of Barren Islands including Kamishak Bay-
334 PM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...SE wind 25 kt becoming W after midnight. Seas 5 ft.
Rain and snow.
.SAT...W wind 15 kt increasing to 25 kt in the afternoon. Seas 5
ft building to 10 ft in the afternoon.
.SAT NIGHT...W wind 25 kt becoming NW 15 kt after midnight. Seas 9 ft.
.SUN AND SUN NIGHT...W wind 15 kt. Seas 5 ft.
.MON...SW wind 30 kt. Seas 7 ft.
.TUE...NW wind 35 kt. Seas 10 ft.
.WED...NW wind 25 kt. Seas 9 ft.

$$

PKZ131-181330-
Barren Islands East-
334 PM AKST Fri Dec 17 2021

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 8 ft.
.SAT...W wind 25 kt. Seas 7 ft building to 12 ft in the afternoon.
.SAT NIGHT...NW wind 35 kt becoming W 25 kt after midnight. Seas 16 ft.
.SUN...NW wind 25 kt. Seas 12 ft.
.SUN NIGHT...W wind 20 kt. Seas 8 ft.
.MON...SW wind 30 kt. Seas 8 ft.
.TUE...NW wind 40 kt. Seas 15 ft.
.WED...NW wind 30 kt. Seas 10 ft.

$$

PKZ132-181330-
Marmot Island to Sitkinak-
334 PM AKST Fri Dec 17 2021

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 10 ft.
.SAT...W wind 30 kt. Seas 14 ft.
.SAT NIGHT...W wind 35 kt diminishing to 25 kt after midnight. N of 
Dangerous Cape, W wind 25 kt. Seas 14 ft.
.SUN...W wind 25 kt. Seas 10 ft.
.SUN NIGHT...W wind 20 kt. Seas 7 ft.
.MON...SW wind 25 kt. Seas 10 ft.
.TUE...NW wind 35 kt. Seas 13 ft.
.WED...W wind 30 kt. Seas 9 ft.

$$

PKZ136-181330-
Chiniak Bay-
334 PM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY SATURDAY...

.TONIGHT...SW wind increasing to 15 kt. Seas 3 ft.
.SAT...W wind 25 kt. Seas 3 ft.
.SAT NIGHT...W wind 20 kt diminishing to 10 kt after midnight.
Seas 3 ft.
.SUN...W wind 15 kt. Seas 2 ft.
.SUN NIGHT...W wind 10 kt. Seas 2 ft.
.MON...SW wind 15 kt. Seas 2 ft.
.TUE...NW wind 25 kt. Seas 4 ft.
.WED...W wind 20 kt. Seas 2 ft.

$$

PKZ137-181330-
Marmot Bay-
334 PM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY SATURDAY AND SATURDAY NIGHT...

.TONIGHT...S wind 10 kt. Seas 3 ft.
.SAT...W wind 25 kt. Seas 6 ft.
.SAT NIGHT...W wind 25 kt diminishing to 15 kt after midnight.
Seas 4 ft.
.SUN...W wind 20 kt. Seas 3 ft.
.SUN NIGHT...W wind 10 kt. Seas 2 ft.
.MON...SW wind 20 kt. Seas 3 ft.
.TUE...NW wind 30 kt. Seas 4 ft.
.WED...NW wind 20 kt. Seas 4 ft.

$$

PKZ138-181330-
Shelikof Strait-
334 PM AKST Fri Dec 17 2021

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 6 ft.
.SAT...W wind 30 kt. Seas 7 ft.
.SAT NIGHT...W wind 25 kt. Seas 5 ft.
.SUN...W wind 25 kt. Seas 3 ft.
.SUN NIGHT...SW wind 15 kt. Seas 3 ft.
.MON...SW wind 20 kt. Seas 5 ft.
.TUE...W wind 25 kt. Seas 6 ft.
.WED...W wind 20 kt. Seas 5 ft.

$$

PKZ139-181330-
Cook Inlet Kalgin Island to Point Bede-
334 PM AKST Fri Dec 17 2021

.TONIGHT...NE wind 20 kt. Seas 3 ft. Freezing spray. Snow.
.SAT...N wind 10 kt. Seas 3 ft.
.SAT NIGHT...NE wind 10 kt. Seas 3 ft.
.SUN AND SUN NIGHT...N wind 10 kt. Seas 3 ft.
.MON...SW wind 15 kt. Seas 3 ft.
.TUE...NW wind 20 kt. Seas 5 ft.
.WED...N wind 15 kt. Seas 5 ft.

$$

PKZ140-181330-
Cook Inlet North of Kalgin Island-
334 PM AKST Fri Dec 17 2021

.TONIGHT...NE wind 10 kt becoming N 15 kt after midnight. Snow.
.SAT...N wind 10 kt in the morning becoming variable less than 10 kt.
.SAT NIGHT...Variable wind less than 10 kt.
.SUN...NE wind 10 kt.
.SUN NIGHT...Variable wind less than 10 kt.
.MON...N wind 10 kt.
.TUE...NW wind 10 kt.
.WED...N wind 15 kt.

$$

PKZ141-181330-
Kachemak Bay-
334 PM AKST Fri Dec 17 2021

.TONIGHT...E wind 10 kt becoming SE 20 kt after midnight. Seas 2
ft. Snow.
.SAT...W wind 15 kt becoming SE 10 kt in the afternoon. Seas 4 ft
subsiding to 2 ft in the afternoon. Snow.
.SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt. Seas 2 ft.
.SUN NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.MON...SW wind 15 kt. Seas 4 ft.
.TUE...NW wind 20 kt. Seas 4 ft.
.WED...N wind 10 kt. Seas 2 ft.

$$
723 
FZAK51 PAFC 181206
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
306 AM AKST Sat Dec 18 2021

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.

PKZ197-190045-
306 AM AKST Sat Dec 18 2021
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A 1013 mb low develops 50 nm south of Seward and weakens as it 
moves into the northeast Gulf Sat night. High Pressure builds 
across the Gulf on Sunday.

$$

PKZ119-190045-
Cape Suckling to Cape Cleare-
306 AM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY TONIGHT AND SUNDAY...

.TODAY...Variable wind less than 10 kt in the morning becoming W 15 
kt. Seas 6 ft.
.TONIGHT...NW wind 20 kt. Gusts to 35 kt out of the Copper River
Delta after midnight. Seas 8 ft.
.SUN...N wind 20 kt in the morning becoming variable 10 kt. Gusts to
30 kt in the morning. Seas 8 ft.
.SUN NIGHT...S wind 15 kt. Seas 6 ft.
.MON...W wind 25 kt. Seas 5 ft.
.TUE...N wind 35 kt. Seas 11 ft.
.WED...N wind 30 kt. Seas 7 ft.

$$

PKZ120-190045-
Cape Cleare to Gore Point-
306 AM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...W wind 15 kt becoming NW 25 kt in the afternoon. Seas 7
ft.
.TONIGHT...NW wind 25 kt. Seas 9 ft.
.SUN...NW wind 20 kt. Seas 7 ft.
.SUN NIGHT...NW wind 25 kt. Seas 6 ft.
.MON THROUGH TUE...NW wind 35 kt. Seas 9 ft.
.WED...NW wind 25 kt. Seas 5 ft.

$$

PKZ121-190045-
Resurrection Bay-
306 AM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TODAY...Variable wind less than 10 kt becoming N 20 kt in the
afternoon. Seas 2 ft building to 4 ft in the afternoon.
.TONIGHT...N wind 25 kt. Seas 5 ft.
.SUN...N wind 20 kt. Seas 4 ft.
.SUN NIGHT...N wind 10 kt. Seas 2 ft.
.MON THROUGH TUE...N wind 25 kt. Seas 5 ft.
.WED...N wind 20 kt. Seas 4 ft.

$$

PKZ125-190045-
Prince William Sound-
306 AM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TODAY...NE wind 10 kt becoming N 15 kt in the afternoon. Seas 2
ft.
.TONIGHT...NW wind 25 kt. Seas 4 ft.
.SUN...N wind 15 kt diminishing to 10 kt in the afternoon. Seas
3 ft.
.SUN NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.MON...NE wind 15 kt. Seas 2 ft.
.TUE THROUGH WED...N wind 20 kt. Seas 4 ft.

$$

PKZ126-190045-
Port Valdez-
306 AM AKST Sat Dec 18 2021

.TODAY...NE wind 10 kt increasing to 15 kt in the afternoon. Seas
3 ft. Freezing spray in the afternoon.
.TONIGHT...NE wind 20 kt. Seas 4 ft. Freezing spray.
.SUN...NE wind 20 kt. Seas 4 ft. Freezing spray.
.SUN NIGHT...NE wind 10 kt. Seas 2 ft.
.MON...NE wind 15 kt. Seas 3 ft.
.TUE THROUGH WED...NE wind 20 kt. Seas 4 ft.

$$

PKZ127-190045-
Valdez Narrows-
306 AM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...N wind 15 kt in the morning increasing to 25 kt. Seas 3 ft.
Freezing spray in the afternoon.
.TONIGHT...N wind 30 kt. Seas 3 ft. Freezing spray.
.SUN...N wind 30 kt. Seas 3 ft. Freezing spray.
.SUN NIGHT...N wind 20 kt. Seas 3 ft.
.MON...N wind 25 kt. Seas 3 ft.
.TUE...N wind 30 kt. Seas 3 ft.
.WED...NE wind 25 kt. Seas 3 ft.

$$

PKZ128-190045-
Valdez Arm-
306 AM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY TONIGHT AND SUNDAY...

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

$$

PKZ129-190045-
Passage Canal-
306 AM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TODAY...Variable wind less than 10 kt becoming W 15 kt in the
afternoon. Gusts to 30 kt near Whittier in the afternoon. Seas 2 ft.
.TONIGHT...W wind 25 kt. Gusts to 40 kt near Whittier. Seas 4 ft. 
Freezing spray.
.SUN...W wind 20 kt. Gusts to 30 kt near Whittier in the morning. 
Seas 3 ft. Freezing spray.
.SUN NIGHT...W wind 10 kt. Seas 2 ft.
.MON...W wind 25 kt. Seas 4 ft.
.TUE...W wind 30 kt. Seas 5 ft.
.WED...W wind 25 kt. Seas 4 ft.

$$

PKZ130-190045-
West of Barren Islands including Kamishak Bay-
306 AM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...W wind 15 kt increasing to 25 kt in the afternoon. 
Seas 5 ft.
.TONIGHT...W wind 25 kt becoming NW 15 kt after midnight. 
Seas 8 ft.
.SUN...NW wind 15 kt. Seas 4 ft.
.SUN NIGHT...W wind 15 kt. Seas 4 ft.
.MON THROUGH TUE...NW wind 45 kt. Seas 12 ft.
.WED...NW wind 25 kt. Seas 5 ft.

$$

PKZ131-190045-
Barren Islands East-
306 AM AKST Sat Dec 18 2021

...GALE WARNING TONIGHT...

.TODAY...W wind 25 kt. Seas 7 ft.
.TONIGHT...NW wind 35 kt. Seas 13 ft.
.SUN...W wind 25 kt. Seas 10 ft.
.SUN NIGHT...W wind 25 kt. Seas 6 ft.
.MON...W wind 50 kt. Seas 14 ft.
.TUE...NW wind 50 kt. Seas 14 ft.
.WED...NW wind 30 kt. Seas 7 ft.

$$

PKZ132-190045-
Marmot Island to Sitkinak-
306 AM AKST Sat Dec 18 2021

...GALE WARNING TONIGHT...

.TODAY...W wind 30 kt. Seas 11 ft.
.TONIGHT...W wind 35 kt diminishing to 20 kt after midnight. N of
Dangerous Cape, W wind 20 kt. Seas 12 ft.
.SUN...W wind 20 kt. Seas 10 ft.
.SUN NIGHT...W wind 20 kt. Seas 8 ft.
.MON THROUGH TUE...NW wind 40 kt. Seas 12 ft.
.WED...W wind 25 kt. Seas 8 ft.

$$

PKZ136-190045-
Chiniak Bay-
306 AM AKST Sat Dec 18 2021

.TODAY...W wind 20 kt. Seas 3 ft. Freezing spray.
.TONIGHT...W wind 20 kt becoming SW 10 kt after midnight. 
Seas 3 ft.
.SUN...W wind 15 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.SUN NIGHT...W wind 10 kt. Seas 2 ft.
.MON...W wind 30 kt. Seas 4 ft.
.TUE...NW wind 30 kt. Seas 4 ft.
.WED...NW wind 15 kt. Seas 2 ft.

$$

PKZ137-190045-
Marmot Bay-
306 AM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...W wind 25 kt. Seas 4 ft. Freezing spray in the morning.
.TONIGHT...W wind 20 kt. Seas 3 ft.
.SUN...W wind 20 kt. Seas 3 ft.
.SUN NIGHT...W wind 15 kt. Seas 3 ft.
.MON THROUGH TUE...NW wind 30 kt. Seas 5 ft.
.WED...W wind 15 kt. Seas 2 ft.

$$

PKZ138-190045-
Shelikof Strait-
306 AM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...W wind 30 kt. Seas 8 ft.
.TONIGHT...W wind 25 kt. Seas 6 ft subsiding to 4 ft after
midnight.
.SUN...W wind 25 kt. Seas 5 ft.
.SUN NIGHT...SW wind 20 kt. Seas 5 ft.
.MON...W wind 30 kt. Seas 8 ft.
.TUE...NW wind 30 kt. Seas 8 ft.
.WED...W wind 20 kt. Seas 4 ft.

$$

PKZ139-190045-
Cook Inlet Kalgin Island to Point Bede-
306 AM AKST Sat Dec 18 2021

.TODAY...N wind 15 kt becoming NE 10 kt in the afternoon. 
Seas 3 ft.
.TONIGHT...Variable wind less than 10 kt. Seas 3 ft.
.SUN...NE wind 10 kt. Seas 3 ft.
.SUN NIGHT...NE wind 10 kt. Seas 3 ft.
.MON...N wind 25 kt. Seas 3 ft.
.TUE...NW wind 20 kt. Seas 5 ft.
.WED...N wind 15 kt. Seas 3 ft.

$$

PKZ140-190045-
Cook Inlet North of Kalgin Island-
306 AM AKST Sat Dec 18 2021

.TODAY...N wind 10 kt in the morning becoming variable less than
10 kt.
.TONIGHT...Variable wind less than 10 kt.
.SUN...NE wind 10 kt.
.SUN NIGHT...Variable wind less than 10 kt.
.MON...Variable wind less than 10 kt.
.TUE...NW wind 10 kt.
.WED...NE wind 10 kt.

$$

PKZ141-190045-
Kachemak Bay-
306 AM AKST Sat Dec 18 2021

.TODAY...W wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft. Snow.
.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt becoming NW 10 kt in the
afternoon. Seas 2 ft.
.SUN NIGHT...SW wind 10 kt. Seas 2 ft.
.MON...SW wind 20 kt. Seas 6 ft.
.TUE...NW wind 15 kt. Seas 2 ft.
.WED...NW wind 10 kt. Seas 2 ft.

$$
209 
FZAK51 PAFC 190016
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
316 PM AKST Sat Dec 18 2021

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.

PKZ197-191330-
316 PM AKST Sat Dec 18 2021
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A 1015 mb low 70 nm south of Cordova weakens as it moves into the
northeast Gulf Sat night. High Pressure builds across the Gulf on
Sunday and Monday. 

$$

PKZ119-191330-
Cape Suckling to Cape Cleare-
316 PM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TONIGHT...NW wind 20 kt. Gusts to 35 kt out of the Copper 
River Delta after midnight. Seas 8 ft.
.SUN...NW wind 20 kt in the morning becoming variable 10 kt. 
Gusts to 30 kt out of the Copper River Delta in the morning. 
Seas 8 ft.
.SUN NIGHT...Variable wind 10 kt. Seas 5 ft.
.MON...Variable wind 10 kt. Seas 4 ft.
.MON NIGHT...NW wind 25 kt. Seas 7 ft.
.TUE...N wind 35 kt. Seas 13 ft.
.WED...N wind 30 kt. Seas 7 ft.
.THU...N wind 20 kt. Seas 7 ft.

$$

PKZ120-191330-
Cape Cleare to Gore Point-
316 PM AKST Sat Dec 18 2021

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

.TONIGHT...NW wind 25 kt. Seas 9 ft.
.SUN...NW wind 20 kt. Seas 7 ft.
.SUN NIGHT...NW wind 25 kt. Seas 6 ft.
.MON...W wind 15 kt. Seas 4 ft.
.MON NIGHT...NW wind 30 kt. Seas 9 ft.
.TUE...NW wind 30 kt. Seas 10 ft.
.WED...NW wind 25 kt. Seas 5 ft.
.THU...NW wind 25 kt. Seas 9 ft.

$$

PKZ121-191330-
Resurrection Bay-
316 PM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 25 kt. Seas 5 ft.
.SUN...N wind 20 kt. Seas 4 ft.
.SUN NIGHT...N wind 10 kt. Seas 2 ft.
.MON...N wind 10 kt. Seas 2 ft.
.MON NIGHT...N wind 25 kt. Seas 5 ft.
.TUE...N wind 25 kt. Seas 5 ft.
.WED THROUGH THU...N wind 20 kt. Seas 4 ft.

$$

PKZ125-191330-
Prince William Sound-
316 PM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW wind 25 kt. Seas 4 ft.
.SUN...N wind 15 kt diminishing to 10 kt in the afternoon. 
Seas 3 ft.
.SUN NIGHT...Variable wind less than 10 kt becoming N 10 kt 
after midnight. Seas 2 ft.
.MON...Variable wind less than 10 kt. Seas 2 ft.
.MON NIGHT...N wind 15 kt. Seas 3 ft.
.TUE...NW wind 25 kt. Seas 6 ft.
.WED...N wind 20 kt. Seas 3 ft.
.THU...N wind 15 kt. Seas 3 ft.

$$

PKZ126-191330-
Port Valdez-
316 PM AKST Sat Dec 18 2021

.TONIGHT...NE wind 15 kt. Gusts to 25 kt. Seas 3 ft. Freezing spray.
.SUN...NE wind 15 kt. Seas 3 ft. Freezing spray.
.SUN NIGHT...NE wind 10 kt. Seas 2 ft.
.MON...NE wind 10 kt. Seas 2 ft.
.MON NIGHT...NE wind 15 kt. Seas 3 ft.
.TUE THROUGH THU...NE wind 20 kt. Seas 4 ft.

$$

PKZ127-191330-
Valdez Narrows-
316 PM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TONIGHT...N wind increasing to 30 kt. Seas 3 ft. Freezing spray.
.SUN...N wind 30 kt. Seas 3 ft. Freezing spray.
.SUN NIGHT...N wind 20 kt. Seas 3 ft. Freezing spray.
.MON...N wind 20 kt. Seas 3 ft.
.MON NIGHT...N wind 25 kt. Seas 3 ft.
.TUE...N wind 30 kt. Seas 3 ft.
.WED THROUGH THU...NE wind 25 kt. Seas 3 ft.

$$

PKZ128-191330-
Valdez Arm-
316 PM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TONIGHT...NE wind increasing to 25 kt. Seas building to 5 ft.
.SUN...N wind 25 kt diminishing to 15 kt late. Seas 5 ft.
.SUN NIGHT...N wind 15 kt diminishing to 10 kt after midnight.
Seas 3 ft.
.MON...N wind 10 kt. Seas 2 ft.
.MON NIGHT...N wind 20 kt. Seas 4 ft.
.TUE...N wind 25 kt. Seas 5 ft.
.WED THROUGH THU...NE wind 20 kt. Seas 4 ft.

$$

PKZ129-191330-
Passage Canal-
316 PM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...W wind 25 kt. Gusts to 40 kt near Whittier. Seas 4 ft. 
Freezing spray.
.SUN...W wind 20 kt. Gusts to 30 kt near Whittier in the morning. 
Seas 3 ft. Freezing spray.
.SUN NIGHT...W wind 10 kt in the evening becoming variable less
than 10 kt. Seas 2 ft.
.MON...W wind 10 kt. Seas 2 ft.
.MON NIGHT...W wind 25 kt. Seas 4 ft.
.TUE...W wind 30 kt. Seas 5 ft.
.WED THROUGH THU...W wind 25 kt. Seas 4 ft.

$$

PKZ130-191330-
West of Barren Islands including Kamishak Bay-
316 PM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...W wind 25 kt becoming NW 15 kt after midnight. 
Seas 8 ft.
.SUN...NW wind 15 kt. Seas 4 ft.
.SUN NIGHT...W wind 15 kt becoming NE 10 kt after midnight. 
Seas 4 ft.
.MON...SE wind 15 kt. Seas 3 ft.
.MON NIGHT...W wind 40 kt. Seas 13 ft.
.TUE...NW wind 40 kt. Seas 13 ft.
.WED...NW wind 25 kt. Seas 5 ft.
.THU...NW wind 30 kt. Seas 8 ft.

$$

PKZ131-191330-
Barren Islands East-
316 PM AKST Sat Dec 18 2021

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 35 kt. Seas 13 ft.
.SUN...W wind 25 kt. Seas 9 ft.
.SUN NIGHT...W wind 25 kt. Seas 7 ft.
.MON...W wind 20 kt. Seas 5 ft.
.MON NIGHT...W wind 45 kt. Seas 19 ft.
.TUE...NW wind 45 kt. Seas 19 ft.
.WED THROUGH THU...NW wind 30 kt. Seas 8 ft.

$$

PKZ132-191330-
Marmot Island to Sitkinak-
316 PM AKST Sat Dec 18 2021

...GALE WARNING TONIGHT...

.TONIGHT...W wind 35 kt diminishing to 20 kt after midnight. 
N of Dangerous Cape, W wind 20 kt. Seas 12 ft.
.SUN...W wind 20 kt. Seas 9 ft.
.SUN NIGHT...W wind 20 kt. Seas 8 ft.
.MON...SW wind 20 kt. Seas 7 ft.
.MON NIGHT...W wind 40 kt. Seas 15 ft.
.TUE...NW wind 45 kt. Seas 16 ft.
.WED THROUGH THU...NW wind 25 kt. Seas 8 ft.

$$

PKZ136-191330-
Chiniak Bay-
316 PM AKST Sat Dec 18 2021

.TONIGHT...W wind 20 kt becoming SW 10 kt after midnight. Seas 3 ft.
.SUN...SW wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.SUN NIGHT...NW wind 10 kt. Seas 2 ft.
.MON...SW wind 10 kt. Seas 2 ft.
.MON NIGHT...W wind 30 kt. Seas 5 ft.
.TUE...NW wind 35 kt. Seas 7 ft.
.WED THROUGH THU...NW wind 15 kt. Seas 2 ft.

$$

PKZ137-191330-
Marmot Bay-
316 PM AKST Sat Dec 18 2021

.TONIGHT...W wind 20 kt. Seas 3 ft.
.SUN...W wind 20 kt. Seas 3 ft.
.SUN NIGHT...W wind 15 kt. Seas 3 ft.
.MON...SW wind 10 kt. Seas 2 ft.
.MON NIGHT...W wind 30 kt. Seas 5 ft.
.TUE...NW wind 30 kt. Seas 5 ft.
.WED...W wind 15 kt. Seas 2 ft.
.THU...W wind 20 kt. Seas 3 ft.

$$

PKZ138-191330-
Shelikof Strait-
316 PM AKST Sat Dec 18 2021

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

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

$$

PKZ139-191330-
Cook Inlet Kalgin Island to Point Bede-
316 PM AKST Sat Dec 18 2021

.TONIGHT...Variable wind less than 10 kt. Seas 3 ft.
.SUN...NE wind 10 kt. Seas 3 ft.
.SUN NIGHT...N wind 10 kt. Seas 3 ft.
.MON...E wind 10 kt. Seas 2 ft.
.MON NIGHT...N wind 15 kt. Seas 3 ft.
.TUE THROUGH THU...N wind 15 kt. Seas 4 ft.

$$

PKZ140-191330-
Cook Inlet North of Kalgin Island-
316 PM AKST Sat Dec 18 2021

.TONIGHT...Variable wind less than 10 kt.
.SUN...NE wind 10 kt.
.SUN NIGHT...N wind 10 kt in the evening becoming 
variable less than 10 kt.
.MON...NE wind 10 kt.
.MON NIGHT THROUGH THU...N wind 10 kt.

$$

PKZ141-191330-
Kachemak Bay-
316 PM AKST Sat Dec 18 2021

.TONIGHT...NE wind up to 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt becoming NW 10 kt 
in the afternoon. Seas 2 ft.
.SUN NIGHT AND MON...Variable wind less than 10 kt. Seas 2 ft.
.MON NIGHT...NW wind 10 kt. Seas 2 ft.
.TUE...N wind 15 kt. Seas 2 ft.
.WED...NW wind 10 kt. Seas 2 ft.
.THU...NW wind 15 kt. Seas 2 ft.

$$
000 
FZAK51 PAFC 191324
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
424 AM AKST Sun Dec 19 2021

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.

PKZ197-200230-
424 AM AKST Sun Dec 19 2021
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

High pressure builds across the Gulf today and Mon. Weak low 
pressure develops south of Prince William Sound Tue morning.

$$

PKZ119-200230-
Cape Suckling to Cape Cleare-
424 AM AKST Sun Dec 19 2021

.TODAY...NW wind 20 kt in the morning becoming variable 10 kt. Wind
gusts to 35 kt out of the Copper River Delta in the morning. Seas 8 
ft. Freezing spray near the Copper River Delta in the morning.
.TONIGHT...Variable wind 10 kt. Seas 6 ft.
.MON...Variable wind 10 kt. Seas 5 ft.
.MON NIGHT...W wind 25 kt. Seas 6 ft.
.TUE...NW wind 45 kt. Seas 10 ft.
.WED...N wind 30 kt. Seas 9 ft.
.THU...N wind 25 kt. Seas 8 ft.

$$

PKZ120-200230-
Cape Cleare to Gore Point-
424 AM AKST Sun Dec 19 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NW wind 20 kt. Seas 9 ft.
.TONIGHT...N wind 20 kt. Seas 6 ft.
.MON...W wind 15 kt. Seas 4 ft.
.MON NIGHT...SW wind 20 kt becoming NW 40 kt after midnight. Seas 4
ft in the evening building to 10 ft.
.TUE...NW wind 40 kt. Seas 10 ft.
.WED...NW wind 25 kt. Seas 7 ft.
.THU...NW wind 30 kt. Seas 10 ft.

$$

PKZ121-200230-
Resurrection Bay-
424 AM AKST Sun Dec 19 2021

.TODAY...N wind 20 kt diminishing to 10 kt in the afternoon. Seas 4 
ft subsiding to 2 ft in the afternoon. Freezing spray in the morning.
.TONIGHT...N wind 10 kt. Seas 2 ft.
.MON...N wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.MON NIGHT...Variable wind 10 kt in the evening becoming N 35 kt. 
Seas 2 ft in the evening building to 7 ft.
.TUE...N wind 35 kt. Seas 7 ft.
.WED THROUGH THU...N wind 20 kt. Seas 4 ft.

$$

PKZ125-200230-
Prince William Sound-
424 AM AKST Sun Dec 19 2021

.TODAY...N wind 15 kt diminishing to 10 kt in the afternoon. Seas
4 ft.
.TONIGHT...N wind 10 kt. Seas 2 ft.
.MON...Variable wind less than 10 kt becoming SE 10 kt in the
afternoon. Seas 2 ft.
.MON NIGHT...NE wind 30 kt. Seas 4 ft.
.TUE...NW wind 30 kt. Seas 6 ft.
.WED...N wind 25 kt. Seas 4 ft.
.THU...N wind 15 kt. Seas 3 ft.

$$

PKZ126-200230-
Port Valdez-
424 AM AKST Sun Dec 19 2021

.TODAY...NE wind 10 kt. Seas 4 ft. Freezing spray in the morning.
.TONIGHT...NE wind 10 kt. Seas 2 ft.
.MON...NE wind 10 kt. Seas 2 ft.
.MON NIGHT...E wind 30 kt. Seas 6 ft.
.TUE...E wind 35 kt. Seas 6 ft.
.WED THROUGH THU...NE wind 20 kt. Seas 4 ft.

$$

PKZ127-200230-
Valdez Narrows-
424 AM AKST Sun Dec 19 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 20 kt. Seas 4 ft. Freezing spray.
.TONIGHT...N wind 20 kt. Seas 3 ft. Freezing spray.
.MON...N wind 20 kt. Seas 3 ft. Freezing spray.
.MON NIGHT...N wind 30 kt. Seas 4 ft.
.TUE...N wind 40 kt. Seas 4 ft.
.WED...N wind 35 kt. Seas 4 ft.
.THU...NE wind 30 kt. Seas 3 ft.

$$

PKZ128-200230-
Valdez Arm-
424 AM AKST Sun Dec 19 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 15 kt. Seas 5 ft.
.TONIGHT...N wind 15 kt diminishing to 10 kt after midnight. Seas
3 ft.
.MON...N wind 10 kt. Seas 2 ft.
.MON NIGHT...NE wind 20 kt. Seas 4 ft.
.TUE...N wind 35 kt. Seas 7 ft.
.WED...NE wind 30 kt. Seas 6 ft.
.THU...NE wind 25 kt. Seas 5 ft.

$$

PKZ129-200230-
Passage Canal-
424 AM AKST Sun Dec 19 2021

.TODAY...W wind 20 kt. Gusts to 40 kt near Whittier in the morning. 
Seas 4 ft. Freezing spray.
.TONIGHT...W wind 10 kt in the evening becoming variable less than
10 kt. Seas 2 ft.
.MON...W wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft. Snow.
.MON NIGHT...W wind 35 kt. Seas 5 ft.
.TUE...W wind 35 kt. Seas 5 ft.
.WED THROUGH THU...W wind 25 kt. Seas 4 ft.

$$

PKZ130-200230-
West of Barren Islands including Kamishak Bay-
424 AM AKST Sun Dec 19 2021

.TODAY...NW wind 15 kt. Seas 5 ft.
.TONIGHT...NW wind 15 kt. Seas 4 ft.
.MON...SE wind 15 kt becoming W in the afternoon. Seas 2 ft. Rain 
and snow.
.MON NIGHT...W wind 20 in the evening increasing to 45 kt. Seas 6 ft
in the evening building to 14 ft.
.TUE...NW wind 45 kt. Seas 16 ft.
.WED...NW wind 30 kt. Seas 9 ft.
.THU...W wind 35 kt. Seas 9 ft.

$$

PKZ131-200230-
Barren Islands East-
424 AM AKST Sun Dec 19 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind increasing to 25 kt. Seas building to 8 ft.
.TONIGHT...W wind 25 kt. Seas 6 ft.
.MON...W wind 20 kt. Seas 5 ft.
.MON NIGHT...W wind 25 kt in the evening increasing to 50 kt. Seas 
7 ft in the evening building to 15 ft.
.TUE...NW wind 45 kt. Seas 18 ft.
.WED THROUGH THU...NW wind 35 kt. Seas 13 ft.

$$

PKZ132-200230-
Marmot Island to Sitkinak-
424 AM AKST Sun Dec 19 2021

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...W wind 20 kt. Seas 10 ft.
.TONIGHT...W wind 20 kt. Seas 10 ft.
.MON...SW wind 25 kt. Seas 9 ft.
.MON NIGHT...W wind 35 kt. Seas 10 ft.
.TUE...NW wind 40 kt. Seas 11 ft.
.WED THROUGH THU...NW wind 30 kt. Seas 10 ft.

$$

PKZ136-200230-
Chiniak Bay-
424 AM AKST Sun Dec 19 2021

.TODAY...SW wind 10 kt. Seas 3 ft.
.TONIGHT...Variable wind less than 10 kt becoming W 10 kt after
midnight. Seas 3 ft.
.MON...S wind 10 kt. Seas 2 ft.
.MON NIGHT...W wind 30 kt. Seas 5 ft.
.TUE...NW wind 30 kt. Seas 5 ft.
.WED THROUGH THU...NW wind 20 kt. Seas 3 ft.

$$

PKZ137-200230-
Marmot Bay-
424 AM AKST Sun Dec 19 2021

.TODAY...W wind 20 kt. Seas 4 ft.
.TONIGHT...W wind 15 kt. Seas 3 ft.
.MON...SW wind 10 kt. Seas 2 ft.
.MON NIGHT...W wind 30 kt. Seas 6 ft.
.TUE...W wind 30 kt. Seas 4 ft.
.WED...W wind 20 kt. Seas 3 ft.
.THU...W wind 25 kt. Seas 4 ft.

$$

PKZ138-200230-
Shelikof Strait-
424 AM AKST Sun Dec 19 2021

...SMALL CRAFT ADVISORY TODAY AND MONDAY...

.TODAY...W wind 25 kt. Seas 9 ft.
.TONIGHT...SW wind 20 kt. Seas 6 ft.
.MON...SW wind 25 kt. Seas 7 ft.
.MON NIGHT...W wind 35 kt. Seas 8 ft.
.TUE...W wind 35 kt. Seas 8 ft.
.WED...W wind 20 kt. Seas 5 ft.
.THU...W wind 25 kt. Seas 6 ft.

$$

PKZ139-200230-
Cook Inlet Kalgin Island to Point Bede-
424 AM AKST Sun Dec 19 2021

.TODAY...NE wind 10 kt. Seas 3 ft.
.TONIGHT...N wind 10 kt. Seas 3 ft.
.MON...Variable wind 10 kt. Seas 2 ft.
.MON NIGHT...SW wind 15 kt in the evening becoming NW 35 kt. Seas 3 
ft in the evening building to 6 ft.
.TUE...NW wind 20 kt. Seas 4 ft.
.WED...N wind 15 kt. Seas 3 ft.
.THU...NW wind 20 kt. Seas 4 ft.

$$

PKZ140-200230-
Cook Inlet North of Kalgin Island-
424 AM AKST Sun Dec 19 2021

.TODAY...NE wind 10 kt. Seas 2 ft.
.TONIGHT...N wind 10 kt in the evening becoming variable less than
10 kt. Seas 2 ft. Patchy freezing fog.
.MON...Variable wind less than 10 kt becoming NE 10 kt in the
afternoon.
.MON NIGHT...N wind 10 kt.
.TUE...N wind 15 kt.
.WED THROUGH THU...NE wind 10 kt.

$$

PKZ141-200230-
Kachemak Bay-
424 AM AKST Sun Dec 19 2021

.TODAY...Variable wind less than 10 kt. Seas 2 ft.
.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.MON...Variable wind less than 10 kt becoming E 10 kt in the
afternoon. Seas 2 ft.
.MON NIGHT...SW wind 15 kt in the evening becoming W 35 kt...then
diminishing to to 25 kt after midnight. Seas 4 ft in the evening
building to 10 ft...then subsiding to 6 ft after midnight.
.TUE...N wind 15 kt. Seas 4 ft.
.WED...NW wind 10 kt. Seas 2 ft.
.THU...NW wind 15 kt. Seas 2 ft.

$$
717 
FZAK51 PAFC 200016
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
316 PM AKST Sun Dec 19 2021

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.

PKZ197-201315-
316 PM AKST Sun Dec 19 2021
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

High pressure builds across the Gulf through Mon. A 1005 mb low 
develops 100 nm southeast of Cordova Tue morning and moves into the 
eastern Gulf Tue afternoon. A cold front moves across the Gulf on 
Tuesday.

$$

PKZ119-201315-
Cape Suckling to Cape Cleare-
316 PM AKST Sun Dec 19 2021

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...Variable wind 10 kt. Seas 6 ft.
.MON...Variable wind 10 kt becoming SW 15 kt in the afternoon.
Seas 6 ft.
.MON NIGHT...SW wind 15 kt becoming N 25 kt after midnight. Gusts to
40 kt out of the Copper River Delta after midnight. Seas 6 ft.
.TUE...NW wind 45 kt. Seas 10 ft.
.TUE NIGHT...NW wind 30 kt. Seas 9 ft.
.WED THROUGH FRI...N wind 25 kt. Seas 8 ft.

$$

PKZ120-201315-
Cape Cleare to Gore Point-
316 PM AKST Sun Dec 19 2021

...GALE WARNING MONDAY NIGHT...

.TONIGHT...NW wind 25 kt. Seas 6 ft.
.MON...W wind 15 kt. Seas 6 ft.
.MON NIGHT...W wind 30 kt becoming NW 40 kt after midnight. Seas 10 ft.
.TUE...NW wind 40 kt. Seas 10 ft.
.TUE NIGHT...NW wind 25 kt. Seas 8 ft.
.WED...NW wind 25 kt. Seas 7 ft.
.THU...NW wind 30 kt. Seas 10 ft.
.FRI...NW wind 20 kt. Seas 6 ft.

$$

PKZ121-201315-
Resurrection Bay-
316 PM AKST Sun Dec 19 2021

...GALE WARNING MONDAY NIGHT...

.TONIGHT...N wind 10 kt. Seas 2 ft.
.MON...N wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.MON NIGHT...Variable wind 10 kt becoming N 35 kt after midnight.
Seas 2 ft building to 7 ft after midnight.
.TUE...N wind 35 kt. Seas 7 ft.
.TUE NIGHT...N wind 25 kt. Seas 5 ft.
.WED THROUGH THU...N wind 20 kt. Seas 4 ft.
.FRI...N wind 15 kt. Seas 3 ft.

$$

PKZ125-201315-
Prince William Sound-
316 PM AKST Sun Dec 19 2021

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...N wind 10 kt in the evening becoming variable less than
10 kt. Seas 2 ft.
.MON...Variable wind less than 10 kt becoming E 10 kt in the
afternoon. Seas 2 ft.
.MON NIGHT...NE wind 15 kt becoming NW 30 kt after midnight. Seas
2 ft building to 4 ft after midnight.
.TUE AND TUE NIGHT...NW wind 30 kt. Seas 6 ft.
.WED THROUGH FRI...N wind 15 kt. Seas 3 ft.

$$

PKZ126-201315-
Port Valdez-
316 PM AKST Sun Dec 19 2021

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...NE wind 10 kt. Seas 2 ft.
.MON...NE wind 10 kt. Seas 2 ft.
.MON NIGHT...Variable wind less than 10 kt becoming E 30 kt after
midnight. Seas 2 ft building to 6 ft after midnight. Snow.
.TUE...E wind 35 kt. Seas 6 ft.
.TUE NIGHT...E wind 20 kt. Seas 4 ft.
.WED THROUGH THU...NE wind 20 kt. Seas 4 ft.
.FRI...NE wind 15 kt. Seas 3 ft.

$$

PKZ127-201315-
Valdez Narrows-
316 PM AKST Sun Dec 19 2021

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...N wind 20 kt. Seas 3 ft. Freezing spray.
.MON...N wind 20 kt. Seas 3 ft. Freezing spray.
.MON NIGHT...N wind 15 kt increasing to 30 kt after midnight. Seas
4 ft. Snow.
.TUE...N wind 40 kt. Seas 4 ft.
.TUE NIGHT...N wind 35 kt. Seas 4 ft.
.WED...N wind 35 kt. Seas 4 ft.
.THU THROUGH FRI...NE wind 30 kt. Seas 3 ft.

$$

PKZ128-201315-
Valdez Arm-
316 PM AKST Sun Dec 19 2021

.TONIGHT...N wind 15 kt diminishing to 10 kt after midnight. Seas
3 ft.
.MON...N wind 10 kt. Seas 2 ft.
.MON NIGHT...NE wind 20 kt. Seas 4 ft.
.TUE...N wind 35 kt. Seas 7 ft.
.TUE NIGHT...N wind 30 kt. Seas 6 ft.
.WED...NE wind 30 kt. Seas 6 ft.
.THU THROUGH FRI...NE wind 25 kt. Seas 5 ft.

$$

PKZ129-201315-
Passage Canal-
316 PM AKST Sun Dec 19 2021

...GALE WARNING MONDAY NIGHT...

.TONIGHT...W wind 20 kt in the evening becoming variable less than 
10 kt. Gusts to 30 kt near Whittier in the evening. Seas 2 ft.
.MON...W wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft. Snow.
.MON NIGHT...Variable wind 10 kt becoming W 35 kt after midnight.
Gusts to 50 kt near Whittier after midnight. Seas 2 ft building to 5
ft after midnight.
.TUE AND TUE NIGHT...W wind 35 kt. Seas 5 ft.
.WED THROUGH FRI...W wind 25 kt. Seas 4 ft.

$$

PKZ130-201315-
West of Barren Islands including Kamishak Bay-
316 PM AKST Sun Dec 19 2021

...GALE WARNING MONDAY NIGHT...

.TONIGHT...W wind 15 kt. Seas 3 ft.
.MON...SE wind 20 kt becoming W 15 kt in the afternoon. Seas 2 ft.
Rain and snow.
.MON NIGHT...W wind 20 kt in the evening increasing to 45 kt. Seas 
6 ft in the evening building to 14 ft.
.TUE...NW wind 45 kt. Seas 16 ft.
.TUE NIGHT...NW wind 35 kt. Seas 11 ft.
.WED...NW wind 25 kt. Seas 7 ft.
.THU...W wind 35 kt. Seas 9 ft.
.FRI...NW wind 25 kt. Seas 6 ft.

$$

PKZ131-201315-
Barren Islands East-
316 PM AKST Sun Dec 19 2021

...STORM WARNING MONDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 6 ft.
.MON...SW wind 20 kt. Seas 6 ft.
.MON NIGHT...W wind 40 kt becoming NW 50 kt after midnight. Seas
9 ft building to 15 ft after midnight.
.TUE...NW wind 45 kt. Seas 18 ft.
.TUE NIGHT...NW wind 35 kt. Seas 12 ft.
.WED...NW wind 30 kt. Seas 12 ft.
.THU...NW wind 35 kt. Seas 14 ft.
.FRI...NW wind 30 kt. Seas 9 ft.

$$

PKZ132-201315-
Marmot Island to Sitkinak-
316 PM AKST Sun Dec 19 2021

...GALE WARNING MONDAY NIGHT...

.TONIGHT...W wind 20 kt. Seas 9 ft.
.MON...SW wind 15 kt increasing to 25 kt in the afternoon. Seas 8 ft.
.MON NIGHT...NW wind 25 kt in the evening increasing to 35 kt. Seas 
10 ft.
.TUE...NW wind 40 kt. Seas 11 ft.
.TUE NIGHT...NW wind 30 kt. Seas 9 ft.
.WED THROUGH THU...NW wind 30 kt. Seas 10 ft.
.FRI...W wind 25 kt. Seas 9 ft.

$$

PKZ136-201315-
Chiniak Bay-
316 PM AKST Sun Dec 19 2021

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...Variable wind less than 10 kt becoming SW 10 kt after
midnight. Seas 2 ft.
.MON...S wind 10 kt. Seas 2 ft.
.MON NIGHT...W wind 30 kt. Seas 5 ft.
.TUE...NW wind 30 kt. Seas 5 ft.
.TUE NIGHT...NW wind 20 kt. Seas 3 ft.
.WED...W wind 15 kt. Seas 2 ft.
.THU...NW wind 20 kt. Seas 3 ft.
.FRI...NW wind 10 kt. Seas 1 ft.

$$

PKZ137-201315-
Marmot Bay-
316 PM AKST Sun Dec 19 2021

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...W wind 15 kt. Seas 3 ft.
.MON...SW wind 10 kt becoming W 15 kt in the afternoon. Seas 3 ft.
.MON NIGHT...W wind 15 kt in the evening increasing to 30 kt. Seas 6 ft.
.TUE...NW wind 30 kt. Seas 4 ft.
.TUE NIGHT...W wind 20 kt. Seas 3 ft.
.WED...W wind 20 kt. Seas 3 ft.
.THU...W wind 25 kt. Seas 4 ft.
.FRI...NW wind 15 kt. Seas 2 ft.

$$

PKZ138-201315-
Shelikof Strait-
316 PM AKST Sun Dec 19 2021

...GALE WARNING MONDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 4 ft.
.MON...SW wind 25 kt. Seas 7 ft.
.MON NIGHT...W wind 35 kt. Seas 8 ft.
.TUE...NW wind 35 kt. Seas 8 ft.
.TUE NIGHT...W wind 20 kt. Seas 4 ft.
.WED...W wind 20 kt. Seas 5 ft.
.THU...W wind 25 kt. Seas 6 ft.
.FRI...W wind 20 kt. Seas 4 ft.

$$

PKZ139-201315-
Cook Inlet Kalgin Island to Point Bede-
316 PM AKST Sun Dec 19 2021

...GALE WARNING MONDAY NIGHT...

.TONIGHT...N wind 10 kt in the evening becoming variable less than
10 kt. Seas 3 ft.
.MON...Variable wind less than 10 kt becoming SW 15 kt in the
afternoon. Seas 2 ft.
.MON NIGHT...SW 15 kt in the evening becoming W wind 35 kt. Seas 3 ft
building to 6 ft.
.TUE AND TUE NIGHT...N wind 20 kt. Seas 4 ft.
.WED...N wind 15 kt. Seas 3 ft.
.THU...NW wind 20 kt. Seas 4 ft.
.FRI...N wind 15 kt. Seas 3 ft.

$$

PKZ140-201315-
Cook Inlet North of Kalgin Island-
316 PM AKST Sun Dec 19 2021

.TONIGHT...N wind 10 kt in the evening becoming variable less than
10 kt. Patchy freezing fog.
.MON...Variable wind less than 10 kt becoming NE 10 kt in the
afternoon.
.MON NIGHT...N wind 10 kt becoming SW after midnight.
.TUE...SW wind 15 kt.
.TUE NIGHT...NE wind 10 kt.
.WED THROUGH FRI...NE wind 10 kt.

$$

PKZ141-201315-
Kachemak Bay-
316 PM AKST Sun Dec 19 2021

...GALE WARNING MONDAY NIGHT...

.TONIGHT...W wind 10 kt in the evening becoming variable less than
10 kt. Seas 2 ft.
.MON...Variable wind less than 10 kt becoming SW 10 kt in the
afternoon. Seas 2 ft.
.MON NIGHT...SW wind 15 kt in the evening becoming W 35 kt...then
diminishing to 25 kt after midnight. Seas 4 ft in the evening 
building to 10 ft...then subsiding to 6 ft after midnight.
.TUE AND TUE NIGHT...N wind 15 kt. Seas 3 ft.
.WED...N wind 10 kt. Seas 2 ft.
.THU...NW wind 15 kt. Seas 2 ft.
.FRI...N wind 10 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 16, 5:17 PM AKST, 10 hours 31 minutes earlier.

Area forecast discussion, Dec 16, 5:17 PM AKST, 10 hours 31 minutes before
Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
517 PM AKST Thu Dec 16 2021

.ANALYSIS AND UPPER LEVELS...

Upper level flow is progressive, but amplified. Multiple out of
phase short-wave troughs are tracking from the eastern Bering Sea
and Southwest Alaska into Southcentral Alaska and the Gulf of
Alaska. At the surface, a weak low is positioned over the far
northern Bering Sea with an occluded front draped across Southwest
Alaska and into the western Gulf where a weak triple point low has
developed east of Kodiak Island. Widespread light snow is falling
ahead of the short-waves and front, from the Southwest interior
to Southcentral and Kodiak Island. Temperatures are slowly
creeping up as snow moves in, but remain well below freezing
across most of southern Alaska.

Meanwhile, an occluding low is tracking into the Bering Sea just
to the west of Attu Island, way out at the end of the Aleutian
chain. The associated frontal system is tracking north and east
out ahead of the low, bringing widespread gale force winds and
rain to the region. There are likely some small areas of storm
force winds near the low center as colder air wraps into the
system.

&&

.MODEL DISCUSSION...

Models remain in good agreement with handling of large scale
features through the weekend. The primary forecast challenge will
be the transition of precipitation types over Southwest Alaska as
warmer (above freezing) air advects into the region Saturday
afternoon through Sunday.

&&

.AVIATION...

PANC...Ceiling/vis will hover in the low end VFR to high end MVFR
categories with some very light snow remaining in the area through
this evening. Then expect conditions to drop overnight as an
upper level trough approaches and heavier/steadier snow develops.
Snow will quickly end by 15Z Friday, but with weak low level flow
and a ridge quickly building in from the west it looks favorable
to maintain low ceilings (possibly even some fog). This is always
extremely challenging to forecast. For now, have gone with MVFR
conditions on Friday, but there is a chance of IFR conditions.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 to 3: Tonight
through Sun afternoon)...

A frontal boundary in association with a low in the northern
Bering Sea continues pushing eastward tonight. A weak, triple
point low has formed along this front southeast of Kodiak Island
this evening. The low will slowly strengthen as it pushes east
across the Gulf towards Southeast Alaska. As a result, light snow
is expected to continue across much of Southcentral this evening
and overnight. The best chance time to see a steadier light snow
for the Anchorage Bowl and Matanuska Valley will be between 12-4
AM before trough passage. Otherwise, expect mostly flurries or
brief light snow showers till then. Up to one inch of snow remains
expected for the Anchorage Bowl and Matanuska Valley with 1-2
inches on the Anchorage Hillside before all is said and done early
Friday morning. For Prince William Sound, expect total snow
accumulations of 2 to 5 inches with the highest amounts for
eastern Prince William Sound.

A transient upper level ridge then moves overhead for
Friday/Friday night keeping the weather quiet across Southcentral.
Temperatures area-wide Friday will be in the teens with 20s for
the Kenai Peninsula with single numbers to near zero for the
Copper River Basin where the coldest air will hold on. Some areas
of fog are possible throughout Southcentral Friday night into
early Saturday morning due to the fresh snow that recently
occurred. The one caveat that might hold the fog off is the clouds
with the next system will be quickly moving in. Therefore, how
much fog occurs will be dependent on how quickly the clouds from
the next system move in and how much it radiates out beforehand.

The next system is expected to move into Kodiak first Friday night
into Saturday with a potential rain/snow mix though it could end
up being all snow with little to no accumulation as temperatures
will be near freezing to even slightly above. This same system
will spread another round of light snow into Southcentral
Saturday with mostly one inch amounts, with isolated up to 2 inch
amounts mostly in the Susitna Valley. Most of the moisture isn't
expected to move past the Chugach Mountains keeping most of
eastern Prince William Sound dry. Winds are expected to increase
for Thompson Pass, Seward, Whittier, and the Valdez gap wind areas
on Saturday into Sunday as the pressure gradient increases. Other
than that, expect quiet conditions with mostly clear to partly
cloudy skies for Saturday night through Sunday afternoon.

&&

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

Some snow showers persist in southwest mainland Alaska this
evening, but fog may become a bigger issue. The next front moves
in later tonight to the Kuskokwim Delta coast and will bring more
snow and even some blowing snow...especially near Hooper Bay.
While this system is much warmer than the previous one, it does
look like precipitation type will remain all snow for the
Kuskokwim Delta and Bristol Bay. The challenge comes in with the
next system on Saturday night into Sunday. This system is much
warmer and will increase temperatures aloft to above freezing. The
question is whether the precipitation will end before conditions
become favorable for freezing rain, or if it will be snow for the
whole time. This will become a focus of the forecast over the next
few days.

&&

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

The low in the western Bering Sea and associated front will
continue to bring warmer air into the Bering as well as some storm
force winds. This storm will bring rain and snow across the
region as it tracks eastward through Saturday night. The next low
is stronger and warmer and will enter the western Bering Sea
Friday night as a warm upper level ridge builds over the central
Bering Sea. This will bring in the strong south to southwest flow
aloft over the area and the warmer air. Rain will be the
predominant precipitation type for the Aleutians and Alaska
Peninsula with this system Saturday into Sunday.

&&

.MARINE (Days 3 through 5: Sunday through Tuesday)...

Gulf of Alaska: Winds remain generally less than 35 kt and waves
less than 20 ft for Sunday and Monday as weak low pressure
meanders in the far northern Gulf with high pressure ridging
spreading across the remainder of the area. By Tuesday, expect a
new low to develop over the northern Gulf and exit towards
Southeast AK by Tuesday evening as it deepens. Forecast confidence
for this system is lower than for the generally calm conditions
expected through Monday. The greatest uncertainty will be for the
strength of northwest gap winds developing in the wake of the low
on Tuesday, with winds increasing mainly to gale force expected.
However, there is a chance for the low to deepen faster than
expected, and winds up to storm force on Tuesday and subsequently
higher waves above 20 ft over mainly parts of the western Gulf
cannot be ruled out at this time.

Bering Sea: A Kamchatka low exiting into the Chukchi Sea will
continue to bring its associated gale force front across the
central Bering/Aleutians on Sunday, with the winds generating
waves of 20 to 30 feet initially over the majority of the Bering
Sea. To the west, a separate North Pacific low will cross the
Western Aleutians and into the Bering, sending more southerly
winds up to gale force and 20 to 30 ft seas briefly across the
Western Bering on Sunday. The frontal system and low entering the
Bering off to the west will both weaken below gale force by early
Monday, with high pressure ridging moving into the southern Bering
and allowing predominant winds and waves across the majority of
the region to drop below 35 kt and 20 ft respectively for Monday.
Another North Pacific low will approach the Western Aleutians
from the south by late Monday night. Forecast confidence decreases
by this point in time, with uncertainty for the track and
strength of the low. Nevertheless, expect this low to be gale
force or perhaps higher, with higher easterly winds/waves
spreading into the central and western Bering/Aleutians on
Tuesday.

&&

.LONG TERM FORECAST (Days 4 through 7/Monday through Thursday)...

Questions are popping up almost immediately for the first part of
the extended period, largely hinging on the fate of a shortwave
trough in the eastern Bering poised to ride over top of and
consequently flatten a very amplified Pacific ridge extending
well into mainland AK at the same point in time on Monday. Deep
warm/moist southwest flow upstream from this ridge should also be
giving quite a warm-up to virtually the entire state, with the
exception of Southeast AK. The other exception will be for the
lowest elevations of Southcentral, where cold air entrenched over
valleys will be stubborn to move or mix out with winds in the low
levels not sufficiently strong enough to erode the colder air in
place. To the west, a weakening frontal system will cross into
Southwest and over the Alaska Peninsula, with the winds ahead of
the front likely to erode more of the cold air in place, resulting
in potential for mixed precipitation before colder air rushes in
behind the front and turns everything over to all snow by Monday
night.

The overall picture beyond Monday is muddier, with models diverging
with the handling of the aforementioned shortwave as it rides
over and temporarily weakens the Pacific ridge on Tuesday. The 12z
GFS and GEFS ensembles are still by far the most gung-ho with the
amplitude of the trough, depicting a fairly deep low developing
in the northern Gulf in response to the likewise sharper/stronger
upper wave digging into Southcentral by Tuesday morning. With
strong cold advection materializing behind the deepening Gulf low
and strong ridging moving back over Southwest, this would imply a
significant northwest gap wind event developing for the North
Gulf Coast and Alaska Peninsula on Tuesday. However, other
solutions are much less aggressive with the strengthening of the
trough and keep the track farther north, casting significant doubt
on this scenario and keeping the consensus that the operational
GFS is overdoing it for this system. Even so, it continues to look
likely that much of Southcentral will get a round of snow late
Monday to early Tuesday as the wave moves across and as winds
strengthen from the west.

Beyond Tuesday, there remains good consensus that the Pacific
ridge will bounce back in strength quickly farther west over the
eastern Bering/Aleutians as the shortwave trough and attendant
low exit towards Southeast AK on Wednesday. This will extend the
period of warmth for much of the Aleutians through Wednesday and
Thursday, with cool temperatures favored downstream from the ridge
over much of Southcentral. Any further details really start to
fall apart by this point, with even poorer agreement and run to
run consistency for another possible system traversing the Bering
Tuesday/Wednesday and then shifting somewhere toward the western
mainland by Thursday.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Storm: 177 178 411.
Gale: 155 165 170 172-176 179-185 412-414.

&&

SYNOPSIS AND MODEL DISCUSSION...SEB
SOUTHCENTRAL ALASKA...MV
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...EZ
MARINE/LONG TERM...AS

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 16, 3:23 PM AKSTSmall Craft AdvisoryAFC72 hr
Dec 16, 3:39 PM AKSTGale WarningAFC12 hr
Dec 16, 3:47 PM AKSTGale WarningAFC36 hr
Dec 16, 3:47 PM AKSTStorm WarningAFC36 hr
Dec 17, 3:54 AM AKSTGale WarningAFC24 hr
Dec 17, 4:02 AM AKSTStorm WarningAFC11 hr
Dec 17, 2:52 PM AKSTGale WarningAFC63 hr
Dec 17, 2:53 PM AKSTBrisk Wind AdvisoryAFC13 hr
Dec 17, 2:53 PM AKSTSmall Craft AdvisoryAFC13 hr

Nearby

Small Craft Advisories in Alaska, 2021Every small craft advisory in 2021

Sources

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