Heavy Freezing Spray Warning 72, NWS Anchorage, AK

522 
FZAK51 PAFC 200036
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
336 PM AKST Fri Feb 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-
336 PM AKST Fri Feb 19 2021
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A 983 mb low over Unimak Pass moves along the front to 190 nm 
Southwest of Yakutat at 979 mb and dissipates Sat afternoon. 
A 971 mb low 80 nm South of Chignik Sat afternoon moves along 
the front to 160 nm West of Yakutat at 973 mb by Sun afternoon. 
Its front stretches across the Gulf through Sun afternoon.

$$

PKZ119-201315-
Cape Suckling to Cape Cleare-
336 PM AKST Fri Feb 19 2021

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

.TONIGHT...NW wind 30 kt becoming NE 15 kt after midnight. 
Seas 12 ft. Freezing spray near the Copper River Delta.
.SAT...E wind 25 kt. Seas 7 ft. Freezing spray near the 
Copper River Delta.
.SAT NIGHT...NE wind 30 kt. Seas 11 ft. Freezing spray 
near the Copper River Delta.
.SUN AND SUN NIGHT...W wind 30 kt. Seas 19 ft.
.MON...NW wind 30 kt. Seas 18 ft.
.TUE...SW wind 20 kt. Seas 11 ft.
.WED...E wind 25 kt. Seas 11 ft.

$$

PKZ120-201315-
Cape Cleare to Gore Point-
336 PM AKST Fri Feb 19 2021

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

.TONIGHT...NW wind 30 kt becoming NE 15 kt after midnight. Seas
10 ft subsiding to 6 ft after midnight. Freezing spray.
.SAT...NE wind 30 kt. Seas 7 ft. Freezing spray.
.SAT NIGHT...NE wind 30 kt. Seas 8 ft building to 13 ft after
midnight. Rain.
.SUN...NW wind 30 kt. Seas 16 ft.
.SUN NIGHT...W wind 40 kt. Seas 16 ft.
.MON...W wind 35 kt. Seas 17 ft.
.TUE...SW wind 25 kt. Seas 10 ft.
.WED...N wind 30 kt. Seas 12 ft.

$$

PKZ121-201315-
Resurrection Bay-
336 PM AKST Fri Feb 19 2021

...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY...
...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 30 kt diminishing to 15 kt after midnight. 
Seas 6 ft subsiding to 3 ft after midnight. Heavy freezing spray.
.SAT...N wind 15 kt diminishing to 10 kt in the afternoon. 
Seas 3 ft. Heavy freezing spray.
.SAT NIGHT...N wind 20 kt. Seas 4 ft. Freezing spray.
.SUN AND SUN NIGHT...N wind 20 kt. Seas 4 ft.
.MON...N wind 20 kt. Seas 4 ft.
.TUE THROUGH WED...N wind 10 kt. Seas 2 ft.

$$

PKZ125-201315-
Prince William Sound-
336 PM AKST Fri Feb 19 2021

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 35 kt becoming N 15 kt after midnight. 
Seas 9 ft subsiding to 3 ft after midnight. Freezing spray.
.SAT...NE wind 15 kt. Seas 3 ft. Freezing spray.
.SAT NIGHT...N wind 15 kt. Seas 3 ft.
.SUN...N wind 10 kt. Seas 2 ft.
.SUN NIGHT...NW wind 15 kt. Seas 2 ft.
.MON...NW wind 15 kt. Seas 2 ft.
.TUE...NE wind 10 kt. Seas 2 ft.
.WED...NE wind 15 kt. Seas 2 ft.

$$

PKZ126-201315-
Port Valdez-
336 PM AKST Fri Feb 19 2021

.TONIGHT...NE wind 15 kt diminishing to 10 kt after midnight. 
Seas 3 ft. Freezing spray.
.SAT...E wind 10 kt in the morning becoming variable less 
than 10 kt. Seas 2 ft.
.SAT NIGHT...E wind 10 kt becoming NE 15 kt after midnight. 
Seas 3 ft. Freezing spray.
.SUN...E wind 15 kt. Seas 3 ft.
.SUN NIGHT AND MON...E wind 10 kt. Seas 2 ft.
.TUE THROUGH WED...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ127-201315-
Valdez Narrows-
336 PM AKST Fri Feb 19 2021

...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY NIGHT...
...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...NE wind 30 kt. Seas 3 ft. Heavy freezing spray.
.SAT...NE wind 25 kt decreasing to 15 ft by afternoon. Seas 3 ft. 
Heavy freezing spray.
.SAT NIGHT...NE wind 20 kt increasing to 25 kt by midnight. Seas 3 
ft. Heavy freezing spray.
.SUN...NE wind 25 kt. Seas 3 ft.
.SUN NIGHT...NE wind 20 kt. Seas 3 ft.
.MON...NE wind 20 kt. Seas 3 ft.
.TUE...NE wind 10 kt. Seas 2 ft.
.WED...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ128-201315-
Valdez Arm-
336 PM AKST Fri Feb 19 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NE wind 25 kt decreasing to 15 kt after midnight. Seas 5 
ft subsiding to 3 ft after midnight. Freezing spray.
.SAT...NE wind 15 kt. Seas 3 ft. Freezing spray.
.SAT NIGHT...NE wind 10 kt increasing to 15 kt after midnight.
Seas 3 ft. Freezing spray.
.SUN...NE wind 15 kt. Seas 3 ft.
.SUN NIGHT...NE wind 10 kt. Seas 2 ft.
.MON THROUGH WED...NE wind 10 kt. Seas 2 ft.

$$

PKZ129-201315-
Passage Canal-
336 PM AKST Fri Feb 19 2021

...HEAVY FREEZING SPRAY WARNING TONIGHT...
...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...W wind 30 kt diminishing to 10 kt after midnight. 
Seas 5 ft subsiding to 2 ft after midnight. Heavy freezing spray.
.SAT AND SAT NIGHT...W wind 10 kt. Seas 2 ft.
.SUN...W wind 20 kt. Seas 3 ft.
.SUN NIGHT...W wind 15 kt. Seas 2 ft.
.MON...W wind 20 kt. Seas 3 ft.
.TUE THROUGH WED...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ130-201315-
West of Barren Islands including Kamishak Bay-
336 PM AKST Fri Feb 19 2021

...GALE WARNING THROUGH SATURDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...NW wind 25 kt becoming NE 35 kt after midnight. Seas 8 ft
building to 12 ft after midnight. Heavy freezing spray.
.SAT...NE wind 35 kt. Seas 13 ft. Heavy freezing spray.
.SAT NIGHT...NE wind 35 kt decreasing to 25 kt after midnight. Seas 
14 ft subsiding to 11 ft after midnight. Heavy freezing spray.
.SUN...NW wind 30 kt. Seas 10 ft.
.SUN NIGHT...W wind 40 kt. Seas 16 ft.
.MON...W wind 35 kt. Seas 14 ft.
.TUE...E wind 15 kt. Seas 3 ft.
.WED...NW wind 25 kt. Seas 7 ft.

$$

PKZ131-201315-
Barren Islands East-
336 PM AKST Fri Feb 19 2021

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

.TONIGHT...NW wind 25 kt becoming NE 20 kt after midnight. Seas
10 ft subsiding to 6 ft after midnight. Freezing spray.
.SAT...NE wind 30 kt. Seas 5 ft building to 9 ft by afternoon. 
Freezing spray. Snow.
.SAT NIGHT...NE wind 30 kt. Seas 13 ft. Freezing spray. Snow
showers.
.SUN...NW wind 35 kt. Seas 16 ft.
.SUN NIGHT...W wind 40 kt. Seas 17 ft.
.MON...W wind 40 kt. Seas 17 ft.
.TUE...S wind 25 kt. Seas 10 ft.
.WED...W wind 30 kt. Seas 13 ft.

$$

PKZ132-201315-
Marmot Island to Sitkinak-
336 PM AKST Fri Feb 19 2021

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

.TONIGHT...SE wind 15 kt increasing to E 30 kt by midnight. 
Seas 7 ft. Snow and rain.
.SAT...NE wind 30 kt. Seas 10 ft. Rain showers with snow.
.SAT NIGHT...E wind 30 kt becoming NW 25 kt after midnight. 
Seas 13 ft building to 21 ft after midnight. Rain showers.
.SUN...W wind 30 kt. Seas 20 ft.
.SUN NIGHT...W wind 35 kt. Seas 19 ft.
.MON...W wind 35 kt. Seas 18 ft.
.TUE...SW wind 25 kt. Seas 13 ft.
.WED...W wind 30 kt. Seas 13 ft.

$$

PKZ136-201315-
Chiniak Bay-
336 PM AKST Fri Feb 19 2021

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...NE wind 10 kt increasing to 20 kt after midnight. 
Seas 3 ft building to 5 ft after midnight. Freezing spray. Snow.
.SAT...NE wind 20 kt. Seas 6 ft. Freezing spray. Snow.
.SAT NIGHT...N wind 25 kt. Seas 9 ft subsiding to 5 ft after 
midnight. Snow showers and rain showers.
.SUN...W wind 20 kt. Seas 3 ft.
.SUN NIGHT...W wind 25 kt. Seas 4 ft.
.MON...W wind 25 kt. Seas 4 ft.
.TUE...S wind 15 kt. Seas 2 ft.
.WED...W wind 20 kt. Seas 3 ft.

$$

PKZ137-201315-
Marmot Bay-
336 PM AKST Fri Feb 19 2021

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...N wind 10 kt becoming NE 15 kt after midnight. 
Seas 4 ft. Freezing spray.
.SAT...NE wind 15 kt increasing to 20 kt by afternoon. Seas 4 ft 
building to 9 ft in the afternoon. Freezing spray. Snow.
.SAT NIGHT...NE wind 25 kt decreasing to 20 kt after midnight. 
Seas 10 ft subsiding to 4 ft after midnight. Freezing spray. 
Snow showers.
.SUN...W wind 25 kt. Seas 6 ft.
.SUN NIGHT...W wind 30 kt. Seas 7 ft.
.MON...W wind 30 kt. Seas 6 ft.
.TUE...S wind 15 kt. Seas 3 ft.
.WED...W wind 25 kt. Seas 4 ft.

$$

PKZ138-201315-
Shelikof Strait-
336 PM AKST Fri Feb 19 2021

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...Variable wind up to 15 kt becoming NE 40 kt after 
midnight. Seas 5 ft building to 15 ft after midnight. Freezing 
spray.
.SAT...NE wind 35 kt. Seas 14 ft. Freezing spray. Snow showers.
.SAT NIGHT...NE wind 35 kt decreasing to N 25 kt after midnight. 
Seas 14 ft subsiding to 10 ft after midnight. Freezing spray. Snow 
showers.
.SUN AND SUN NIGHT...W wind 30 kt. Seas 10 ft.
.MON...W wind 25 kt. Seas 8 ft.
.TUE...S wind 20 kt. Seas 4 ft.
.WED...W wind 25 kt. Seas 5 ft.

$$

PKZ139-201315-
Cook Inlet Kalgin Island to Point Bede-
336 PM AKST Fri Feb 19 2021

...GALE WARNING THROUGH SATURDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...NE wind 15 kt increasing to 35 kt after midnight. Seas 5 
ft building to 11 ft after midnight. Heavy freezing spray.
.SAT...NE wind 35 kt decreasing to 30 kt by afternoon. Seas 11 ft. 
Heavy freezing spray.
.SAT NIGHT...NE wind 30 kt. Seas 11 ft. Heavy freezing spray.
.SUN...N wind 15 kt. Seas 4 ft.
.SUN NIGHT...NW wind 20 kt. Seas 4 ft.
.MON...NW wind 20 kt. Seas 4 ft.
.TUE...NE wind 15 kt. Seas 3 ft.
.WED...N wind 20 kt. Seas 4 ft.

$$

PKZ140-201315-
Cook Inlet North of Kalgin Island-
336 PM AKST Fri Feb 19 2021

.TONIGHT...NE wind 10 kt becoming N 15 kt after midnight.
.SAT...NE wind 15 kt diminishing to 10 kt in the afternoon.
.SAT NIGHT...NE wind 10 kt.
.SUN AND SUN NIGHT...Variable wind less than 10 kt.
.MON...NE wind 10 kt.
.TUE THROUGH WED...NW wind 15 kt.

$$

PKZ141-201315-
Kachemak Bay-
336 PM AKST Fri Feb 19 2021

...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY...

.TONIGHT...NE wind 15 kt. Seas 3 ft. Heavy Freezing spray.
.SAT...NE wind 15 kt. Seas 2 ft. Heavy freezing spray.
.SAT NIGHT...N wind 20 kt. Seas 2 ft. Freezing spray.
.SUN...NW wind 10 kt. Seas 2 ft.
.SUN NIGHT...W wind 15 kt. Seas 4 ft.
.MON...W wind 15 kt. Seas 4 ft.
.TUE...NE wind 10 kt. Seas 2 ft.
.WED...N wind 15 kt. Seas 4 ft.

$$

215 
FZAK51 PAFC 201303
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
403 AM AKST Sat Feb 20 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.

PKZ197-210145-
403 AM AKST Sat Feb 20 2021
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...A 978 mb low 90 nm east of Chignik moves to 70 nm
west of Yakutat at 972 mb Sun morning and moves inland by Sun 
afternoon. Another low forms over the Prince William Sound at 985 
mb Sun afternoon and slowly moves to 25 nm southwest of Cordova at 
991 mb by Mon morning.

$$

PKZ119-210145-
Cape Suckling to Cape Cleare-
403 AM AKST Sat Feb 20 2021

...GALE WARNING SUNDAY...

.TODAY...E wind 25 kt. Seas 8 ft. Freezing spray. Snow.
.TONIGHT...NE wind 25 kt. Seas 12 ft. Freezing spray along the coast.
Rain...except snow along the coast.
.SUN...W wind 35 kt. Seas 17 ft.
.SUN NIGHT...W wind 30 kt. Seas 16 ft.
.MON...NW wind 30 kt. Seas 16 ft.
.TUE...S wind 30 kt. Seas 12 ft.
.WED...NE wind 30 kt. Seas 13 ft.

$$

PKZ120-210145-
Cape Cleare to Gore Point-
403 AM AKST Sat Feb 20 2021

...GALE WARNING SUNDAY...

.TODAY...NE wind increasing to 30 kt. Seas 8 ft. Freezing spray. 
Snow.
.TONIGHT...NE wind 30 kt. Seas 10 ft. Snow and rain.
.SUN...NW wind 35 kt. Seas 14 ft.
.SUN NIGHT...W wind 40 kt. Seas 14 ft.
.MON...W wind 40 kt. Seas 16 ft.
.TUE...S wind 25 kt. Seas 9 ft.
.WED...N wind 30 kt. Seas 11 ft.

$$

PKZ121-210145-
Resurrection Bay-
403 AM AKST Sat Feb 20 2021

...HEAVY FREEZING SPRAY WARNING TODAY...
...SMALL CRAFT ADVISORY TONIGHT AND SUNDAY...

.TODAY...N wind 20 kt. Gusts to 30 kt early. Seas 4 ft. Heavy 
freezing spray. Snow.
.TONIGHT...N wind 25 kt. Gusts to 35 kt developing by midnight. Seas
5 ft. Freezing spray. Snow.
.SUN...N wind 25 kt. Gusts to 35 kt. Seas 5 ft. Freezing spray.
.SUN NIGHT...N wind 20 kt. Seas 4 ft.
.MON...N wind 20 kt. Seas 4 ft.
.TUE...N wind 10 kt. Seas 2 ft.
.WED...N wind 10 kt. Seas 2 ft.

$$

PKZ125-210145-
Prince William Sound-
403 AM AKST Sat Feb 20 2021

...SMALL CRAFT ADVISORY SUNDAY...

.TODAY...NE wind 20 kt. Seas 3 ft. Freezing spray.
.TONIGHT...N wind 20 kt. Seas 3 ft. Freezing spray.
.SUN...NW wind 30 kt. Seas 6 ft. Freezing spray.
.SUN NIGHT...NW wind 20 kt. Seas 3 ft.
.MON...NW wind 15 kt. Seas 2 ft.
.TUE THROUGH WED...N wind 20 kt. Seas 4 ft.

$$

PKZ126-210145-
Port Valdez-
403 AM AKST Sat Feb 20 2021

.TODAY...E wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.TONIGHT...E wind 10 kt becoming NE 15 kt after midnight. Seas 3
ft. Freezing spray.
.SUN...E wind 15 kt. Seas 3 ft. Freezing spray.
.SUN NIGHT...E wind 10 kt. Seas 2 ft.
.MON...E wind 10 kt. Seas 2 ft.
.TUE THROUGH WED...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ127-210145-
Valdez Narrows-
403 AM AKST Sat Feb 20 2021

...HEAVY FREEZING SPRAY WARNING TODAY...
...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...NE wind 25 kt. Seas 3 ft. Heavy freezing spray.
.TONIGHT...NE wind 30 kt. Seas 3 ft. Freezing spray.
.SUN...NE wind 25 kt. Seas 3 ft. Freezing spray.
.SUN NIGHT...NE wind 20 kt. Seas 3 ft.
.MON...NE wind 20 kt. Seas 3 ft.
.TUE...Variable wind less than 10 kt. Seas 2 ft.
.WED...NE wind 10 kt. Seas 2 ft.

$$

PKZ128-210145-
Valdez Arm-
403 AM AKST Sat Feb 20 2021

...SMALL CRAFT ADVISORY TODAY...

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

$$

PKZ129-210145-
Passage Canal-
403 AM AKST Sat Feb 20 2021

...SMALL CRAFT ADVISORY SUNDAY...

.TODAY...W wind 15 kt. Seas 2 ft. Snow.
.TONIGHT...W wind 10 kt increasing to 20 kt after midnight. Seas
3 ft. Freezing spray.
.SUN...W wind 25 kt. Gusts to 40 kt near Whittier. Seas 4 ft. 
Freezing spray.
.SUN NIGHT...W wind 25 kt. Seas 4 ft.
.MON...W wind 20 kt. Seas 3 ft.
.TUE...Variable wind less than 10 kt. Seas 2 ft.
.WED...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ130-210145-
West of Barren Islands including Kamishak Bay-
403 AM AKST Sat Feb 20 2021

...GALE WARNING TODAY...
...HEAVY FREEZING SPRAY WARNING TODAY...

.TODAY...NE wind 35 kt. Seas 15 ft. Heavy freezing spray.
.TONIGHT...NE wind 30 kt. Seas 14 ft subsiding to 9 ft after
midnight. Freezing spray.
.SUN...W wind 30 kt. Seas 12 ft. Freezing spray.
.SUN NIGHT...W wind 45 kt. Seas 16 ft.
.MON...NW wind 35 kt. Seas 14 ft.
.TUE...E wind 20 kt. Seas 5 ft.
.WED...NW wind 25 kt. Seas 5 ft.

$$

PKZ131-210145-
Barren Islands East-
403 AM AKST Sat Feb 20 2021

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...NE wind 30 kt. Seas 6 ft building to 10 ft in the
afternoon. Freezing spray. Snow.
.TONIGHT...NE wind 30 kt. Seas 12 ft. Freezing spray. Snow.
.SUN...NW wind 30 kt. Seas 13 ft.
.SUN NIGHT...W wind 40 kt. Seas 14 ft.
.MON...W wind 40 kt. Seas 15 ft.
.TUE...S wind 25 kt. Seas 9 ft.
.WED...NW wind 30 kt. Seas 10 ft.

$$

PKZ132-210145-
Marmot Island to Sitkinak-
403 AM AKST Sat Feb 20 2021

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...NE wind 30 kt. Seas 13 ft. Rain showers with snow.
.TONIGHT...N wind 25 kt. Seas 14 ft. Rain.
.SUN...W wind 30 kt. Seas 15 ft.
.SUN NIGHT...W wind 40 kt. Seas 17 ft.
.MON...W wind 35 kt. Seas 16 ft.
.TUE...S wind 20 kt. Seas 11 ft.
.WED...W wind 35 kt. Seas 13 ft.

$$

PKZ136-210145-
Chiniak Bay-
403 AM AKST Sat Feb 20 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NE wind 25 kt. Seas 7 ft. Freezing spray. Snow.
.TONIGHT...N wind 20 kt. Seas 7 ft subsiding to 4 ft after
midnight. Snow and rain.
.SUN...W wind 20 kt. Seas 3 ft.
.SUN NIGHT...W wind 25 kt. Seas 4 ft.
.MON...SW wind 25 kt. Seas 4 ft.
.TUE...S wind 15 kt. Seas 3 ft.
.WED...W wind 20 kt. Seas 3 ft.

$$

PKZ137-210145-
Marmot Bay-
403 AM AKST Sat Feb 20 2021

...SMALL CRAFT ADVISORY SUNDAY...

.TODAY...NE wind 20 kt. Seas 5 ft. Freezing spray. Snow.
.TONIGHT...N wind 20 kt. Seas 6 ft. Freezing spray. Snow.
.SUN...W wind 20 kt increasing to 30 kt in the afternoon. Seas 4
ft building to 7 ft in the afternoon.
.SUN NIGHT...W wind 30 kt. Seas 7 ft.
.MON...SW wind 30 kt. Seas 6 ft.
.TUE...SE wind 15 kt. Seas 4 ft.
.WED...NW wind 20 kt. Seas 4 ft.

$$

PKZ138-210145-
Shelikof Strait-
403 AM AKST Sat Feb 20 2021

...GALE WARNING TODAY...

.TODAY...NE wind 40 kt. Seas building to 14 ft. Freezing spray. Snow
showers.
.TONIGHT...NE wind 30 kt. Seas 13 ft subsiding to 8 ft after
midnight. Freezing spray. Snow showers.
.SUN...W wind 30 kt. Seas 8 ft. Freezing spray.
.SUN NIGHT...W wind 30 kt. Seas 10 ft.
.MON...SW wind 25 kt. Seas 8 ft.
.TUE...SE wind 15 kt. Seas 4 ft.
.WED...W wind 20 kt. Seas 5 ft.

$$

PKZ139-210145-
Cook Inlet Kalgin Island to Point Bede-
403 AM AKST Sat Feb 20 2021

...GALE WARNING TODAY...
...HEAVY FREEZING SPRAY WARNING THROUGH TONIGHT...

.TODAY...NE wind 35 kt. Seas 13 ft. Heavy freezing spray.
.TONIGHT...NE wind 30 kt. Seas 12 ft subsiding to 7 ft after
midnight. Heavy freezing spray.
.SUN...W wind 30 kt. Seas 5 ft building to 9 ft in the afternoon.
Freezing spray.
.SUN NIGHT...NW wind 25 kt. Seas 6 ft.
.MON...N wind 20 kt. Seas 4 ft.
.TUE...NE wind 20 kt. Seas 5 ft.
.WED...NW wind 20 kt. Seas 5 ft.

$$

PKZ140-210145-
Cook Inlet North of Kalgin Island-
403 AM AKST Sat Feb 20 2021

.TODAY...NE wind 15 kt.
.TONIGHT...NE wind 15 kt in the evening becoming variable less
than 10 kt.
.SUN...Variable wind less than 10 kt becoming NE 10 kt in the
afternoon.
.SUN NIGHT...N wind 10 kt.
.MON...NE wind 10 kt.
.TUE THROUGH WED...NE wind 15 kt.

$$

PKZ141-210145-
Kachemak Bay-
403 AM AKST Sat Feb 20 2021

...HEAVY FREEZING SPRAY WARNING TODAY...
...SMALL CRAFT ADVISORY TODAY AND SUNDAY...

.TODAY...NE wind 25 kt. Seas 3 ft. Heavy freezing spray.
.TONIGHT...NE wind 15 kt. Seas 3 ft. Freezing spray.
.SUN...N wind 20 kt becoming W 25 kt in the afternoon. Seas 4 ft
building to 8 ft in the afternoon. Freezing spray.
.SUN NIGHT...W wind 20 kt. Seas 6 ft.
.MON...W wind 15 kt. Seas 4 ft.
.TUE...E wind 15 kt. Seas 3 ft.
.WED...NW wind 15 kt. Seas 4 ft.

$$

651 
FZAK51 PAFC 210015
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
315 PM AKST Sat Feb 20 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.

PKZ197-211330-
315 PM AKST Sat Feb 20 2021
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A 973 mb low 180 nm South of Seward moves to 30 nm West of 
Yakutat at 975 mb Sun morning and moves inland by Sun afternoon. 
Its front stretches across the Northern Gulf through Mon morning. 
A 984 mb low forms on the front 45 nm South of Cordova Sun 
afternoon and moves to 135 nm West of Yakutat at 1001 mb by 
Mon afternoon.

$$

PKZ119-211330-
Cape Suckling to Cape Cleare-
315 PM AKST Sat Feb 20 2021

...GALE WARNING SUNDAY...

.TONIGHT...NE wind 30 kt. Seas 11 ft. Freezing spray along the coast.
.SUN...W wind 35 kt. Seas 17 ft. Freezing spray along the coast.
.SUN NIGHT...W wind 30 kt. Seas 15 ft.
.MON...W wind 30 kt. Seas 15 ft.
.MON NIGHT...NW wind 25 kt. Seas 15 ft.
.TUE...SE wind 30 kt. Seas 11 ft.
.WED...NE wind 30 kt. Seas 13 ft.
.THU...W wind 30 kt. Seas 13 ft.

$$

PKZ120-211330-
Cape Cleare to Gore Point-
315 PM AKST Sat Feb 20 2021

...GALE WARNING SUNDAY...

.TONIGHT...NE wind 30 kt. Seas 13 ft.
.SUN...W wind 35 kt. Seas 14 ft.
.SUN NIGHT...W wind 30 kt. Seas 13 ft. Freezing spray.
.MON...W wind 40 kt. Seas 15 ft.
.MON NIGHT...W wind 35 kt. Seas 14 ft.
.TUE...SE wind 25 kt. Seas 9 ft.
.WED...N wind 30 kt. Seas 11 ft.
.THU...W wind 30 kt. Seas 11 ft.

$$

PKZ121-211330-
Resurrection Bay-
315 PM AKST Sat Feb 20 2021

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TONIGHT...N wind 20 kt increasing to 25 kt after midnight. Gusts to
30 kt increasing to 35 kt after midnight. Seas 5 ft. Freezing spray.
.SUN...N wind 25 kt decreasing to 20 kt by afternoon. Gusts to 35 
kt in the morning. Seas 5 ft. Freezing spray.
.SUN NIGHT...N wind 20 kt. Seas 4 ft. Freezing spray.
.MON AND MON NIGHT...N wind 20 kt. Seas 4 ft.
.TUE THROUGH THU...N wind 10 kt. Seas 2 ft.

$$

PKZ125-211330-
Prince William Sound-
315 PM AKST Sat Feb 20 2021

...SMALL CRAFT ADVISORY SUNDAY...

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

$$

PKZ126-211330-
Port Valdez-
315 PM AKST Sat Feb 20 2021

.TONIGHT...NE wind 10 kt increasing to 15 kt after midnight. 
Seas 3 ft. Freezing spray after midnight.
.SUN...NE wind 15 kt diminishing to 10 kt in the afternoon. 
Seas 3 ft. Freezing spray in the morning.
.SUN NIGHT AND MON...Variable wind less than 10 kt. Seas 2 ft.
.MON NIGHT...NE wind 10 kt. Seas 2 ft.
.TUE THROUGH THU...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ127-211330-
Valdez Narrows-
315 PM AKST Sat Feb 20 2021

...HEAVY FREEZING SPRAY WARNING TONIGHT...
...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TONIGHT...NE wind 30 kt. Seas 3 ft. Heavy freezing spray.
.SUN...NE wind 25 kt. Seas 3 ft. Freezing spray.
.SUN NIGHT...NE wind 20 kt. Seas 3 ft. Freezing spray.
.MON...NE wind 20 kt. Seas 3 ft.
.MON NIGHT...N wind 15 kt. Seas 3 ft.
.TUE THROUGH WED...NE wind 10 kt. Seas 2 ft.
.THU...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ128-211330-
Valdez Arm-
315 PM AKST Sat Feb 20 2021

.TONIGHT...NE wind 20 kt. Seas 4 ft. Freezing spray.
.SUN...NE wind 20 kt. Seas 4 ft. Freezing spray.
.SUN NIGHT THROUGH MON NIGHT...NE wind 10 kt. Seas 2 ft.
.TUE THROUGH THU...N wind 10 kt. Seas 2 ft.

$$

PKZ129-211330-
Passage Canal-
315 PM AKST Sat Feb 20 2021

...SMALL CRAFT ADVISORY SUNDAY...

.TONIGHT...W wind 10 kt increasing to 20 kt after midnight. 
Seas 3 ft. Freezing spray.
.SUN...W wind 25 kt. Gusts to 40 kt near Whittier. Seas 4 ft. 
Freezing spray.
.SUN NIGHT...W wind 20 kt. Seas 3 ft. Freezing spray.
.MON AND MON NIGHT...W wind 20 kt. Seas 3 ft.
.TUE...E wind 10 kt. Seas 2 ft.
.WED THROUGH THU...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ130-211330-
West of Barren Islands including Kamishak Bay-
315 PM AKST Sat Feb 20 2021

...GALE WARNING TONIGHT AND SUNDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...N wind 35 kt decreasing to NW 20 kt after midnight. 
Seas 14 ft subsiding to 6 ft after midnight. Heavy freezing spray.
.SUN...W wind 30 kt. Seas 12 ft. Heavy freezing spray.
.SUN NIGHT...W wind 40 kt. Seas 15 ft building to 20 ft after 
midnight. Heavy freezing spray.
.MON...W wind 40 kt. Seas 18 ft.
.MON NIGHT...N wind 20 kt. Seas 7 ft.
.TUE...E wind 20 kt. Seas 5 ft.
.WED...NW wind 25 kt. Seas 5 ft.
.THU...W wind 20 kt. Seas 5 ft.

$$

PKZ131-211330-
Barren Islands East-
315 PM AKST Sat Feb 20 2021

...GALE WARNING SUNDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING SUNDAY NIGHT...

.TONIGHT...N wind 30 kt becoming NW 20 kt late. Seas 13 ft. 
Freezing spray.
.SUN...W wind 30 kt. Seas 12 ft. Freezing spray,
.SUN NIGHT...W wind 30 kt increasing to 40 kt after midnight. 
Seas 12 ft. Heavy freezing spray.
.MON...W wind 40 kt. Seas 14 ft.
.MON NIGHT...W wind 30 kt. Seas 13 ft.
.TUE...SE wind 25 kt. Seas 9 ft.
.WED...NW wind 30 kt. Seas 10 ft.
.THU...W wind 30 kt. Seas 11 ft.

$$

PKZ132-211330-
Marmot Island to Sitkinak-
315 PM AKST Sat Feb 20 2021

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

.TONIGHT...NW wind 25 kt. Seas 14 ft. Rain showers.
.SUN...W wind 30 kt. Seas 15 ft.
.SUN NIGHT...W wind 30 kt. Seas 16 ft. Freezing spray.
.MON...W wind 35 kt. Seas 16 ft.
.MON NIGHT...SW wind 25 kt. Seas 13 ft.
.TUE...SE wind 20 kt. Seas 10 ft.
.WED...W wind 35 kt. Seas 13 ft.
.THU...SW wind 30 kt. Seas 15 ft.

$$

PKZ136-211330-
Chiniak Bay-
315 PM AKST Sat Feb 20 2021

.TONIGHT...NW wind 20 kt becoming W 10 kt after midnight. 
Seas 5 ft subsiding to 3 ft after midnight. Snow.
.SUN...W wind 10 kt. Seas 3 ft.
.SUN NIGHT...W wind 10 kt increasing to 20 kt after midnight. 
Seas 2 ft building to 4 ft after midnight. Freezing spray.
.MON...W wind 20 kt. Seas 4 ft.
.MON NIGHT...SW wind 10 kt. Seas 2 ft.
.TUE...SE wind 15 kt. Seas 4 ft.
.WED...W wind 20 kt. Seas 3 ft.
.THU...SW wind 15 kt. Seas 2 ft.

$$

PKZ137-211330-
Marmot Bay-
315 PM AKST Sat Feb 20 2021

...SMALL CRAFT ADVISORY SUNDAY NIGHT...

.TONIGHT...NW wind 20 kt becoming W 10 kt after midnight. Seas 4 ft 
subsiding to 2 ft after midnight. Freezing spray. Snow.
.SUN...W wind 20 kt. Seas 4 ft. Freezing spray.
.SUN NIGHT...W wind 20 kt increasing to 30 kt after midnight. 
Seas 4 ft building to 7 ft after midnight. Freezing spray.
.MON...W wind 30 kt. Seas 7 ft.
.MON NIGHT...SW wind 10 kt. Seas 2 ft.
.TUE...SE wind 15 kt. Seas 4 ft.
.WED...NW wind 20 kt. Seas 4 ft.
.THU...SW wind 15 kt. Seas 3 ft.

$$

PKZ138-211330-
Shelikof Strait-
315 PM AKST Sat Feb 20 2021

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

.TONIGHT...N wind 30 kt becoming NW 20 kt after midnight. 
Seas 12 ft subsiding to 5 ft after midnight. Freezing spray.
.SUN...W wind 25 kt. Seas 9 ft. Freezing spray.
.SUN NIGHT...W wind 30 kt. Seas 12 ft. Freezing spray.
.MON...W wind 30 kt. Seas 10 ft.
.MON NIGHT...SW wind 15 kt. Seas 3 ft.
.TUE...SE wind 15 kt. Seas 4 ft.
.WED...W wind 20 kt. Seas 5 ft.
.THU...SW wind 20 kt. Seas 5 ft.

$$

PKZ139-211330-
Cook Inlet Kalgin Island to Point Bede-
315 PM AKST Sat Feb 20 2021

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND SUNDAY NIGHT...

.TONIGHT...NE wind 35 kt diminishing to 10 kt after midnight. 
Seas 13 ft subsiding to 4 ft after midnight. Heavy freezing spray.
.SUN...W wind 15 kt in the morning increasing to 25 kt. Seas 5 ft 
in the morning building to 9 ft. Freezing spray.
.SUN NIGHT...W wind 25 kt. Seas 4 ft building to 10 ft after 
midnight. Heavy freezing spray.
.MON...NW wind 25 kt. Seas 7 ft.
.MON NIGHT...N wind 10 kt. Seas 3 ft.
.TUE...NE wind 20 kt. Seas 5 ft.
.WED...NW wind 20 kt. Seas 5 ft.
.THU...SW wind 15 kt. Seas 3 ft.

$$

PKZ140-211330-
Cook Inlet North of Kalgin Island-
315 PM AKST Sat Feb 20 2021

.TONIGHT...NE wind 15 kt in the evening becoming variable less
than 10 kt.
.SUN THROUGH MON NIGHT...Variable wind less than 10 kt.
.TUE THROUGH WED...NE wind 15 kt.
.THU...SW wind 10 kt.

$$

PKZ141-211330-
Kachemak Bay-
315 PM AKST Sat Feb 20 2021

.TONIGHT...NE wind 15 kt diminishing to 10 kt after midnight. 
Seas 3 ft. Freezing spray.
.SUN...SW wind 10 kt in the morning increasing to 20 kt. 
Seas 2 ft in the morning building to 6 ft. Freezing spray.
.SUN NIGHT...W wind 20 kt. Seas 6 ft. Freezing spray.
.MON...W wind 20 kt. Seas 6 ft.
.MON NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.TUE...E wind 15 kt. Seas 3 ft.
.WED...NW wind 15 kt. Seas 4 ft.
.THU...SW wind 15 kt. Seas 4 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
600 PM AKST Thu Feb 18 2021

.ANALYSIS AND UPPER LEVELS...
A large occluded low with at least three frontal wraps is in the
eastern Gulf of Alaska this afternoon. An inverted trough extends
out of this low and into the Cook Inlet region which is the
source of the snowfall there. GOES-17 satellite also shows strong
outflow winds off the Alaska Peninsula in cold air that reaches
across a good swath of the north Pacific south of this low. The
winds can be inferred by the cloud streaks out of the gaps in
terrain along the Alaska Peninsula. The fact that it is cold air
can be seen by the appearance of the cumulus clouds present across
the North Pacific.

Farther west, a warm front is moving into the Bering Sea ahead of
a low that is centered just south of the Kamchatka Peninsula. This
is bringing some increasing winds as well as some precipitation
to the Aleutians.

&&

.MODEL DISCUSSION...
Models remain in good overall synoptic agreement, but there is
still a bit of uncertainty with the development of a low along the
front moving into the Bering Sea Friday. Models generally all show
a low developing in the vicinity of the Alaska Peninsula and then
heading into the Gulf on Saturday, but changes in low structure
(mostly how much it elongates), may have some impact on the
forecast.

The last few discussions we mentioned the inverted trough moving
through Southcentral from east-to-west last night into today. The
big question was whether it would stall over Anchorage or the
Chugach mountains before reversing course and moving eastward to
dissipate. Models were all off on this one as the inverted trough
pushed west of Anchorage resulting in snow moving into to Kenai
and Homer.

&&

.AVIATION...
PANC...Conditions at the terminal will improve through the
evening as the snow moves out of the area to the east. At this
time expecting some clearing toward morning, but there will remain
the risk of low stratus or fog development when skies clear out.

&&

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

The highlights...Snow moving east into the Copper River Basin
tonight and Friday. Outflow winds developing tonight and Friday
and colder for the weekend. Snow likely for Kodiak Island this
weekend.

Light snow is ending from west to east as we speak with snow
ending across the Kenai, Anchorage and MAT Valley by this evening.
The upper level shortwave over western Alaska will move east
tonight pushing the light snow to the Copper River Basin, snow
will continue through Friday for this area with up to 2 inches of
snowfall. Outflow winds will increase tonight and spread east on
Friday. Friday night the trough moves east of the area ushering in
colder air. It may get cold enough Friday night for a wind chill
advisory for Thompson Pass, but opted to wait to issue wind chill
advisory. Friday night and Saturday another frontal system enters
the Gulf this will bring some light precipitation to coastal
locations with snow likely for Kodiak City on Saturday. Saturday
night and Sunday a storm force low moves across the southern Gulf.
These two events may bring upwards of 6 inches or greater of snow
to Kodiak City, however there is uncertainty on snow amounts and
duration may be longer than 12 hours. Will need to closely watch
this system and monitor Kodiak City for possible winter weather
advisory snowfall for Saturday into Sunday. Otherwise increased
winds across offshore zones to storms for Sunday.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3 Thursday
afternoon through Sun night)...

Generally quiet but cold weather is expected to continue for
Southwest for the forecast period. The main story will be the
continued breezy conditions through this evening especially for
the Kuskokwim Delta. Winds will gradually subside to between 5 to
10 mph out of the north for the overnight and throughout the day
Friday as the pressure gradient eases over the region. Cold
temperatures will be the main story for Friday with single digits
below zero highs for the Kuskokwim Delta and Middle Kuskokwim
Valley with single digits to low teens for coastal Bristol Bay.

Friday night into Saturday, the pressure gradient is expected to
build over the area. A strong gale force front moving up through
the Bering will be hitting up against strong high pressure over
the Alaska Interior leading to increasing winds yet again for much
of Southwest, especially Bristol Bay and the Kuskokwim Delta.
Saturday morning doesn't appear to be as cold as Friday morning
but colder air is expected to move into the area Saturday evening
along with breezy conditions with northeast winds sustained 20 to
25 mph. Breezy conditions combined with the very cold
temperatures in the teens below zero will yield wind chill values
of -30 to -35 degrees below zero. There remains some uncertainty
as to if wind chills reach -40 degrees below zero for an extended
time period as with the wind blowing it will help to keep the
temperatures a bit warmer than if it were clear and calm. Stay
tuned for the latest info as a Wind Chill Advisory may be issued
in subsequent packages for the Saturday night into Sunday time
frame.

Besides the cold and wind, lower Bristol Bay and along the Alaska
Peninsula, a frontal system is expected to bring snow to villages
such as Pilot Point and Port Heiden. Generally 2 to 4 inches of
snow are expected for this area beginning Friday evening and
continuing through Saturday evening. The peak of this event will
be Friday evening through Saturday morning. Light snow is then
expected to persist through Saturday evening before ending.

&&

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

The active storm track is expected to continue for the Bering Sea
and the Aleutian Island Chain for the forecast period. A gale
force front will continue moving from the western Bering to the
eastern Bering Friday afternoon. The front will come to a halt
though as it bangs up against the strong Arctic high pressure over
the Alaska Interior. As this front moves across the Bering, it is
expected to bring snow and blowing snow to the Pribilof Islands
beginning Friday morning and continuing through Friday evening. As
a result, a Winter Weather Advisory was issued for this area
beginning Friday morning and continuing through Friday evening for
blowing snow. This same front will bring some rain and snow mix to
Dutch Harbor and the Sand Point/Cold Bay areas during the same
time frame (Friday morning through Friday evening).

Heavy freezing spray will continue to be a hazard for mariners
near the ice edge for the next 3 days as the same general pattern
remains in place with the northeasterly flow off the Mainland.

Another low pressure system is expected to bring another round of
rain and snow mix to the western and central Aleutians Friday
night through Saturday. Generally small craft advisory level winds
are expected with this system mainly south of the Aleutian Chain.

Lastly, another frontal system is expected to bring another round
of unsettled weather to the same areas for Sunday/Sunday night as
the active pattern remains due to the jet stream remaining south
of the Chain.

&&

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

Bering Sea: Sub-gales and below 20 ft seas are likely Sunday.
Model agreement degrades into early next week. Multiple low
centers will interact over the western Bering. Winds exceeding 35
kt are possible but their location remains uncertain.

Gulf of Alaska: Westerly gales and seas greater than 20 ft are
likely in the southern Gulf on Sunday. These will expand northward
Monday and Tuesday, potentially strongest between Kodiak Island
and the Kenai Peninsula.

&&

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

A low in the eastern Gulf will bring light precipitation to
eastern Prince William Sound and the Copper River Basin on Sunday.
Northwesterly offshore flow looks to persist elsewhere across
much of the mainland through Monday with weak high pressure over
the interior. This will bring clearer skies and cooler
temperatures across Southwest and Southcentral Alaska. There
remains some disagreement into Tuesday as the ECMWF displaces the
upper level ridge faster than the GFS or Canadian and overspreads
snow well into the Middle Kuskokwim Valley. In any case,
precipitation will track eastward across the state Wednesday
before an upper ridge builds in on Thursday. As usual, the Bering
looks to remain active under a series of lows and fronts.
Confidence remains good regarding the overall longwave pattern,
but details are still lacking.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Winter Weather Advisory: 195.
MARINE...Storm Warning: 130.
Gale Warning: 120 125 131 132 137 138 160 175 177-180 185 351 352
              411-414.
Heavy Freezing Spray Warning: 121 127 129-131 138 139 160 165 180
185 414.

&&

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