Gale Warning 176, NWS Anchorage, AK

117 
FZAK52 PAFC 141252
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
352 AM AKST Fri Feb 14 2020

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

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

PKZ199-150145-
352 AM AKST Fri Feb 14 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 965 mb low 200 nm north of Adak moves 380 nm north of Adak at 
975 mb Fri night. The low then moves 280 nm north of Saint Paul
Island at 985 mb Sat night. A complex low moves 130 nm southeast
of Shemya at 976 mb Sat night.

$$

PKZ150-150145-
South of the AK Peninsula Sitkinak to Castle Cape-
352 AM AKST Fri Feb 14 2020

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...W wind 25 kt. Seas 13 ft.
.TONIGHT...SW wind 25 kt. Seas 13 ft.
.SAT...W wind 25 kt. Seas 13 ft.
.SAT NIGHT...SW wind 25 kt. Seas 13 ft.
.SUN...S wind 30 kt. Seas 14 ft.
.MON...S wind 30 kt. Seas 22 ft.
.TUE...SW wind 30 kt. Seas 17 ft.

$$

PKZ155-150145-
South of the AK Peninsula Castle Cape to Cape Sarichef-
352 AM AKST Fri Feb 14 2020

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...SW wind 25 kt. Seas 17 ft.
.TONIGHT...SW wind 30 kt. Seas 17 ft.
.SAT...SW wind 30 kt. Seas 16 ft.
.SAT NIGHT...SW wind 25 kt. Seas 15 ft.
.SUN THROUGH MON...S wind 30 kt. Seas 21 ft.
.TUE...W wind 30 kt. Seas 24 ft.

$$

PKZ160-150145-
Bristol Bay-
352 AM AKST Fri Feb 14 2020

.TODAY...NE wind 15 kt.
.TONIGHT...SE wind 15 kt. Snow.
.SAT...S wind 20 kt.
.SAT NIGHT...S wind 15 kt.
.SUN THROUGH MON...SE wind 20 kt.
.TUE...SW wind 20 kt.

$$

PKZ165-150145-
Port Heiden to Cape Sarichef-
352 AM AKST Fri Feb 14 2020

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...S wind 25 kt. Seas 9 ft.
.TONIGHT...SW wind 25 kt. Seas 11 ft.
.SAT...SW wind 25 kt. Seas 12 ft.
.SAT NIGHT...SW wind 25 kt. Seas 12 ft.
.SUN...SE wind 25 kt. Seas 7 ft.
.MON...S wind 25 kt. Seas 9 ft.
.TUE...W wind 25 kt. Seas 11 ft.

$$

PKZ170-150145-
Cape Sarichef to Nikolski Bering Side-
352 AM AKST Fri Feb 14 2020

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...S wind 30 kt. Seas 14 ft. Rain showers and snow showers.
.TONIGHT...SW wind 30 kt. Seas 15 ft. Rain showers.
.SAT...SW wind 30 kt. Seas 15 ft. Snow showers.
.SAT NIGHT...SW wind 25 kt. Seas 14 ft.
.SUN...S wind 25 kt. Seas 9 ft.
.MON...SW wind 30 kt. Seas 15 ft.
.TUE...W wind 30 kt. Seas 22 ft.

$$

PKZ171-150145-
Unalaska Bay-
352 AM AKST Fri Feb 14 2020

.TODAY...S wind 20 kt. Seas 3 ft. Rain showers and snow showers.
.TONIGHT...SW wind 20 kt. Seas 3 ft.
.SAT...SW wind 15 kt. Seas 2 ft. Snow showers.
.SAT NIGHT...SW wind 15 kt. Seas 2 ft.
.SUN...S wind 20 kt. Seas 3 ft.
.MON...SW wind 20 kt. Seas 3 ft.
.TUE...W wind 30 kt. Seas 4 ft.

$$

PKZ172-150145-
Cape Sarichef to Nikolski Pacific Side-
352 AM AKST Fri Feb 14 2020

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...SW wind 30 kt. Seas 22 ft.
.TONIGHT...SW wind 30 kt. Seas 20 ft.
.SAT...SW wind 30 kt. Seas 17 ft. Snow showers.
.SAT NIGHT...SW wind 20 kt. Seas 14 ft.
.SUN THROUGH TUE...W wind 30 kt. Seas 21 ft.

$$

PKZ173-150145-
Nikolski to Seguam Island Bering Side-
352 AM AKST Fri Feb 14 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 35 kt. Seas 17 ft. Rain showers and snow showers.
.TONIGHT...SW wind 35 kt. Seas 18 ft.
.SAT...SW wind 30 kt. Seas 16 ft.
.SAT NIGHT...S wind 25 kt. Seas 13 ft.
.SUN...S wind 25 kt. Seas 14 ft.
.MON THROUGH TUE...W wind 30 kt. Seas 19 ft.

$$

PKZ174-150145-
Nikolski to Seguam Island Pacific Side-
352 AM AKST Fri Feb 14 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 35 kt. Seas 25 ft. Rain showers and snow showers.
.TONIGHT...SW wind 35 kt. Seas 21 ft. Snow showers.
.SAT...SW wind 25 kt. Seas 17 ft.
.SAT NIGHT...S wind 20 kt. Seas 13 ft.
.SUN...S wind 30 kt. Seas 16 ft.
.MON THROUGH TUE...SW wind 35 kt. Seas 21 ft.

$$

PKZ175-150145-
Seguam Island to Adak Bering Side-
352 AM AKST Fri Feb 14 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 35 kt. Seas 17 ft. Rain showers and snow showers.
.TONIGHT...SW wind 35 kt. Seas 18 ft.
.SAT...SW wind 30 kt. Seas 15 ft.
.SAT NIGHT...S wind 20 kt. Seas 11 ft.
.SUN...S wind 25 kt. Seas 9 ft.
.MON...W wind 30 kt. Seas 17 ft.
.TUE...SW wind 30 kt. Seas 18 ft.

$$

PKZ176-150145-
Seguam Island to Adak Pacific Side-
352 AM AKST Fri Feb 14 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 35 kt. Seas 26 ft. Snow showers.
.TONIGHT...SW wind 35 kt. Seas 22 ft. Snow showers.
.SAT...SW wind 25 kt. Seas 15 ft.
.SAT NIGHT...S wind 20 kt. Seas 11 ft.
.SUN...SW wind 30 kt. Seas 20 ft.
.MON...W wind 35 kt. Seas 21 ft.
.TUE...SW wind 30 kt. Seas 17 ft.

$$

PKZ177-150145-
Adak to Kiska-
352 AM AKST Fri Feb 14 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...W wind 40 kt. Seas 17 ft Bering side...24 ft Pacific side.
Snow showers.
.TONIGHT...SW wind 35 kt. Seas 18 ft.
.SAT...SW wind 30 kt. Seas 14 ft.
.SAT NIGHT...S wind 25 kt. Seas 10 ft.
.SUN THROUGH MON...W wind 30 kt. Seas 17 ft.
.TUE...SE wind 25 kt. Seas 13 ft.

$$

PKZ178-150145-
Kiska to Attu-
352 AM AKST Fri Feb 14 2020

...GALE WARNING TODAY...

.TODAY...W wind 35 kt. Seas 17 ft.
.TONIGHT...W wind 30 kt. Seas 16 ft.
.SAT...SW wind 25 kt. Seas 13 ft.
.SAT NIGHT...SW wind 15 kt. Seas 12 ft.
.SUN THROUGH MON...W wind 30 kt. Seas 16 ft.
.TUE...NE wind 30 kt. Seas 14 ft.

$$

PKZ179-150145-
Pribilof Islands Near Shore Waters-
352 AM AKST Fri Feb 14 2020

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...S wind 25 kt. Seas 14 ft. Rain showers and snow showers.
.TONIGHT...SW wind 30 kt. Seas 15 ft.
.SAT...SW wind 30 kt. Seas 16 ft.
.SAT NIGHT...SW wind 25 kt. Seas 14 ft.
.SUN...E wind 20 kt. Seas 9 ft.
.MON...N wind 20 kt. Seas 12 ft.
.TUE...NW wind 25 kt. Seas 12 ft.

$$

PKZ180-150145-
Kuskokwim Delta and Etolin Strait-
352 AM AKST Fri Feb 14 2020

.TODAY...E wind 20 kt. Snow.
.TONIGHT...SE wind 20 kt. Snow.
.SAT...S wind 20 kt.
.SAT NIGHT...S wind 20 kt.
.SUN THROUGH MON...SE wind 20 kt.
.TUE...NW wind 20 kt.

$$

PKZ181-150145-
North and West of Nunivak Island-
352 AM AKST Fri Feb 14 2020

...BRISK WIND ADVISORY THROUGH SATURDAY...

.TODAY...E wind 25 kt.
.TONIGHT...E wind 25 kt. Snow.
.SAT...E wind 25 kt. Snow.
.SAT NIGHT...SE wind 15 kt.
.SUN...E wind 25 kt.
.MON...N wind 25 kt.
.TUE...NW wind 20 kt.

$$

PKZ185-150145-
Saint Matthew Island Waters-
352 AM AKST Fri Feb 14 2020

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

.TODAY...E wind 30 kt E of Saint Matthew Island...NE 35 kt W of
Saint Matthew Island. Seas in ice free waters 16 ft. 
Heavy freezing spray.
.TONIGHT...NE wind 35 kt. Seas in ice free waters 15 ft. 
Heavy freezing spray. Snow.
.SAT...E wind 30 kt E of Saint Matthew Island...NE 40 kt W of
Saint Matthew Island. Seas in ice free waters 14 ft. Heavy freezing 
spray. Snow.
.SAT NIGHT...NE wind 30 kt. Seas in ice free waters 11 ft.
.SUN...NE wind 30 kt. Seas in ice free waters 10 ft.
.MON...N wind 30 kt. Seas in ice free waters 13 ft.
.TUE...NW wind 25 kt. Seas in ice free waters 10 ft.

$$

396 
FZAK52 PAFC 150032
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
332 PM AKST Fri Feb 14 2020

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

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

PKZ199-151400-
332 PM AKST Fri Feb 14 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 972 mb low 225 nm W of St. Paul moves to 175 nm W of St. Matthew
Island at 981 mb Sat afternoon, then remains nearly stationary at
992 mb through Sun afternoon. A 995 mb low 200 nm SE of Shemya Sat 
afternoon moves to 125 nm SE of Shemya at 971 mb Sun afternoon. A 
secondary 990 mb low 150 nm SW of Nikolski late Sat night moves to 75
nm SW of St. George Sun afternoon.

$$

PKZ150-151400-
South of the AK Peninsula Sitkinak to Castle Cape-
332 PM AKST Fri Feb 14 2020

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

.TONIGHT...SW wind 25 kt. Seas 14 ft.
.SAT...SW wind 30 kt. Seas 13 ft.
.SAT NIGHT...SW wind 25 kt diminishing to 15 kt after midnight.
Seas 13 ft. Rain showers and snow.
.SUN AND SUN NIGHT...S wind 30 kt. Seas 13 ft.
.MON...S wind 30 kt. Seas 22 ft.
.TUE...SW wind 30 kt. Seas 17 ft.
.WED...SW wind 25 kt. Seas 17 ft.

$$

PKZ155-151400-
South of the AK Peninsula Castle Cape to Cape Sarichef-
332 PM AKST Fri Feb 14 2020

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

.TONIGHT...SW wind 30 kt. Seas 18 ft.
.SAT...SW wind 30 kt. Seas 16 ft.
.SAT NIGHT...SW wind 20 kt. Seas 14 ft. Rain showers.
.SUN...S wind 35 kt. Seas 15 ft.
.SUN NIGHT...S wind 30 kt. Seas 20 ft.
.MON...S wind 30 kt. Seas 21 ft.
.TUE...W wind 30 kt. Seas 24 ft.
.WED...SW wind 20 kt. Seas 14 ft.

$$

PKZ160-151400-
Bristol Bay-
332 PM AKST Fri Feb 14 2020

.TONIGHT...SE wind 15 kt. Snow.
.SAT...S wind 20 kt.
.SAT NIGHT...S wind 15 kt diminishing to 10 kt after midnight.
Patchy freezing fog.
.SUN...E wind 25 kt.
.SUN NIGHT...E wind 20 kt.
.MON...SE wind 20 kt.
.TUE...SW wind 20 kt.
.WED...N wind 15 kt.

$$

PKZ165-151400-
Port Heiden to Cape Sarichef-
332 PM AKST Fri Feb 14 2020

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

.TONIGHT...SW wind 25 kt. Seas 11 ft.
.SAT...SW wind 25 kt. Seas 12 ft.
.SAT NIGHT...SW wind 20 kt. Seas 11 ft. Snow.
.SUN AND SUN NIGHT...SE wind 25 kt. Seas 8 ft.
.MON...S wind 25 kt. Seas 9 ft.
.TUE...W wind 25 kt. Seas 11 ft.
.WED...S wind 15 kt. Seas 5 ft.

$$

PKZ170-151400-
Cape Sarichef to Nikolski Bering Side-
332 PM AKST Fri Feb 14 2020

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

.TONIGHT...SW wind 30 kt. Seas 15 ft. Rain showers.
.SAT...SW wind 30 kt. Seas 15 ft. Snow showers.
.SAT NIGHT...SW wind 20 kt. Seas 12 ft. Rain and snow.
.SUN...SE wind 30 kt. Seas 8 ft.
.SUN NIGHT...S wind 25 kt. Seas 9 ft.
.MON...SW wind 30 kt. Seas 15 ft.
.TUE...W wind 30 kt. Seas 22 ft.
.WED...S wind 15 kt. Seas 6 ft.

$$

PKZ171-151400-
Unalaska Bay-
332 PM AKST Fri Feb 14 2020

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SW wind 25 kt. Seas 3 ft.
.SAT...SW wind 20 kt. Seas 3 ft. Snow showers.
.SAT NIGHT...SW wind 10 kt. Seas 2 ft. Rain.
.SUN AND SUN NIGHT...S wind 20 kt. Seas 3 ft.
.MON...SW wind 20 kt. Seas 3 ft.
.TUE...W wind 30 kt. Seas 4 ft.
.WED...S wind 10 kt. Seas 2 ft.

$$

PKZ172-151400-
Cape Sarichef to Nikolski Pacific Side-
332 PM AKST Fri Feb 14 2020

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

.TONIGHT...SW wind 30 kt. Seas 20 ft.
.SAT...SW wind 30 kt. Seas 17 ft. Snow showers.
.SAT NIGHT...SW wind 15 kt becoming S 25 kt after midnight. Seas
12 ft.
.SUN...S wind 35 kt. Seas 16 ft.
.SUN NIGHT...S wind 30 kt. Seas 20 ft.
.MON THROUGH TUE...W wind 30 kt. Seas 21 ft.
.WED...S wind 25 kt. Seas 11 ft.

$$

PKZ173-151400-
Nikolski to Seguam Island Bering Side-
332 PM AKST Fri Feb 14 2020

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 35 kt. Seas 17 ft.
.SAT...SW wind 30 kt. Seas 15 ft.
.SAT NIGHT...SW wind 20 kt. Seas 11 ft.
.SUN...S wind 30 kt. Seas 9 ft.
.SUN NIGHT...S wind 25 kt. Seas 14 ft.
.MON THROUGH TUE...W wind 30 kt. Seas 19 ft.
.WED...S wind 15 kt. Seas 8 ft.

$$

PKZ174-151400-
Nikolski to Seguam Island Pacific Side-
332 PM AKST Fri Feb 14 2020

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 35 kt. Seas 22 ft. Snow showers.
.SAT...SW wind 25 kt. Seas 16 ft.
.SAT NIGHT...SW wind 15 kt becoming SE 25 kt after midnight. Seas
12 ft.
.SUN...SW wind 35 kt. Seas 15 ft.
.SUN NIGHT...SW wind 30 kt. Seas 16 ft.
.MON THROUGH TUE...SW wind 35 kt. Seas 21 ft.
.WED...S wind 30 kt. Seas 15 ft.

$$

PKZ175-151400-
Seguam Island to Adak Bering Side-
332 PM AKST Fri Feb 14 2020

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 35 kt. Seas 17 ft.
.SAT...SW wind 30 kt. Seas 13 ft.
.SAT NIGHT...SE wind 25 kt. Seas 10 ft. Rain.
.SUN...S wind 30 kt. Seas 8 ft.
.SUN NIGHT...SW wind 20 kt. Seas 9 ft.
.MON...W wind 30 kt. Seas 17 ft.
.TUE...SW wind 30 kt. Seas 18 ft.
.WED...S wind 15 kt. Seas 8 ft.

$$

PKZ176-151400-
Seguam Island to Adak Pacific Side-
332 PM AKST Fri Feb 14 2020

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 35 kt. Seas 21 ft. Snow showers.
.SAT...SW wind 25 kt. Seas 15 ft.
.SAT NIGHT...SE wind 20 kt. Seas 10 ft.
.SUN...SW wind 30 kt. Seas 14 ft.
.SUN NIGHT...SW wind 30 kt. Seas 20 ft.
.MON...W wind 35 kt. Seas 21 ft.
.TUE...SW wind 30 kt. Seas 17 ft.
.WED...SW wind 25 kt. Seas 20 ft.

$$

PKZ177-151400-
Adak to Kiska-
332 PM AKST Fri Feb 14 2020

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 35 kt. Seas 18 ft.
.SAT...SW wind 30 kt. Seas 13 ft.
.SAT NIGHT...S wind 30 kt. Seas 12 ft. Snow.
.SUN...S wind 30 kt. Seas 14 ft.
.SUN NIGHT...W wind 30 kt. Seas 17 ft.
.MON...W wind 30 kt. Seas 16 ft.
.TUE...SE wind 25 kt. Seas 13 ft.
.WED...SW wind 20 kt. Seas 22 ft.

$$

PKZ178-151400-
Kiska to Attu-
332 PM AKST Fri Feb 14 2020

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

.TONIGHT...W wind 30 kt. Seas 15 ft.
.SAT...SW wind 30 kt. Seas 13 ft.
.SAT NIGHT...SW wind 25 kt becoming N after midnight. Seas 11 ft.
.SUN...N wind 40 kt. Seas 16 ft.
.SUN NIGHT...NW wind 35 kt. Seas 16 ft.
.MON...W wind 30 kt. Seas 16 ft.
.TUE...NE wind 30 kt. Seas 14 ft.
.WED...N wind 25 kt. Seas 18 ft.

$$

PKZ179-151400-
Pribilof Islands Near Shore Waters-
332 PM AKST Fri Feb 14 2020

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

.TONIGHT...SW wind 30 kt. Seas 16 ft.
.SAT...SW wind 30 kt. Seas 16 ft.
.SAT NIGHT...SW wind 25 kt. Seas 14 ft. Freezing spray.
.SUN...E wind 25 kt. Seas 9 ft.
.SUN NIGHT...E wind 20 kt. Seas 9 ft.
.MON...N wind 20 kt. Seas 12 ft.
.TUE...NW wind 25 kt. Seas 12 ft.
.WED...NE wind 20 kt. Seas 7 ft.

$$

PKZ180-151400-
Kuskokwim Delta and Etolin Strait-
332 PM AKST Fri Feb 14 2020

.TONIGHT...SE wind 20 kt. Snow.
.SAT AND SAT NIGHT...S wind 20 kt.
.SUN...SE wind 25 kt.
.SUN NIGHT...E wind 20 kt.
.MON...SE wind 20 kt.
.TUE...NW wind 20 kt.
.WED...N wind 15 kt.

$$

PKZ181-151400-
North and West of Nunivak Island-
332 PM AKST Fri Feb 14 2020

...BRISK WIND ADVISORY THROUGH SATURDAY...

.TONIGHT...E wind 25 kt. Snow.
.SAT...E wind 25 kt. Snow.
.SAT NIGHT...SE wind 15 kt.
.SUN...SE wind 15 kt.
.SUN NIGHT...NE wind 25 kt.
.MON...N wind 25 kt.
.TUE...NW wind 20 kt.
.WED...N wind 15 kt.

$$

PKZ185-151400-
Saint Matthew Island Waters-
332 PM AKST Fri Feb 14 2020

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

.TONIGHT...NE wind 35 kt. Seas in ice free waters 15 ft. Heavy
freezing spray. Snow.
.SAT...E wind 30 kt E of Saint Matthew Island...NE 40 kt W of
Saint Matthew Island. Seas in ice free waters 14 ft. Heavy freezing 
spray. Snow.
.SAT NIGHT...E of Saint Matthew Island, E wind 20 kt. W of Saint
Matthew Island, NE wind 40 kt diminishing to 30 kt after midnight.
Seas in ice free waters 11 ft. Heavy freezing spray. Snow.
.SUN...E wind 25 kt. Seas in ice free waters 10 ft.
.SUN NIGHT...NE wind 30 kt. Seas in ice free waters 10 ft.
.MON...N wind 30 kt. Seas in ice free waters 13 ft.
.TUE THROUGH WED...N wind 25 kt. Seas in ice free waters 9 ft.

$$

026 
FZAK52 PAFC 151256
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
356 AM AKST Sat Feb 15 2020

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

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

PKZ199-160200-
356 AM AKST Sat Feb 15 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 977 mb low 240 nm northwest of Saint Paul Island exits the 
Bering to the north Sat night. A 980 mb complex low over Shemya 
Sat night moves 230 nm southwest of Saint Paul Island at 975 mb 
Sun night. Another low at 976 mb forms 70 nm east of Dutch Harbor Sun
night.

$$

PKZ150-160200-
South of the AK Peninsula Sitkinak to Castle Cape-
356 AM AKST Sat Feb 15 2020

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...W wind 30 kt. Seas 13 ft.
.TONIGHT...SW wind 25 kt. Seas 12 ft.
.SUN...S wind 30 kt. Seas 12 ft. Rain and snow.
.SUN NIGHT...S wind 30 kt. Seas 15 ft.
.MON...S wind 35 kt. Seas 20 ft.
.TUE THROUGH WED...SW wind 25 kt. Seas 17 ft.

$$

PKZ155-160200-
South of the AK Peninsula Castle Cape to Cape Sarichef-
356 AM AKST Sat Feb 15 2020

...GALE WARNING SUNDAY...

.TODAY...SW wind 30 kt. Seas 16 ft.
.TONIGHT...SW wind 20 kt. Seas 13 ft. Rain and snow.
.SUN...S wind 25 kt increasing to 35 kt in the afternoon. 
Seas 16 ft. Rain.
.SUN NIGHT...S wind 35 kt. Seas 19 ft.
.MON...SW wind 35 kt. Seas 20 ft.
.TUE THROUGH WED...SW wind 25 kt. Seas 15 ft.

$$

PKZ160-160200-
Bristol Bay-
356 AM AKST Sat Feb 15 2020

...BRISK WIND ADVISORY SUNDAY...

.TODAY...S wind 20 kt. Freezing spray. Snow.
.TONIGHT...SW wind 20 kt becoming S 10 kt after midnight.
.SUN...SE wind 15 kt becoming E 25 kt in the afternoon.  
Snow and rain.
.SUN NIGHT...SE wind 25 kt.
.MON...SE wind 30 kt.
.TUE...SW wind 15 kt.
.WED...SE wind 15 kt.

$$

PKZ165-160200-
Port Heiden to Cape Sarichef-
356 AM AKST Sat Feb 15 2020

...GALE WARNING SUNDAY...

.TODAY...SW wind 25 kt. Seas 11 ft.
.TONIGHT...SW wind 20 kt. Seas 11 ft.
.SUN...S wind 35 kt except E 25 kt from Port Moller E. 
Seas 9 ft. Rain and snow.
.SUN NIGHT...S wind 25 kt. Seas 9 ft.
.MON...S wind 30 kt. Seas 15 ft.
.TUE...SW wind 25 kt. Seas 15 ft.
.WED...S wind 20 kt. Seas 8 ft.

$$

PKZ170-160200-
Cape Sarichef to Nikolski Bering Side-
356 AM AKST Sat Feb 15 2020

...GALE WARNING SUNDAY...

.TODAY...SW wind 30 kt diminishing to 20 kt in the afternoon. 
Seas 14 ft.
.TONIGHT...SW wind 20 kt becoming SE after midnight. Seas 11 ft.
Snow and rain.
.SUN...SE 30 kt becoming S wind 40 kt in the afternoon. 
Seas 12 ft. Snow.
.SUN NIGHT...SW wind 25 kt. Seas 11 ft.
.MON THROUGH TUE...W wind 30 kt. Seas 19 ft.
.WED...SW wind 20 kt. Seas 10 ft.

$$

PKZ171-160200-
Unalaska Bay-
356 AM AKST Sat Feb 15 2020

...SMALL CRAFT ADVISORY SUNDAY...

.TODAY...SW wind 20 kt. Seas 3 ft. Snow showers and rain showers.
.TONIGHT...SW wind 10 kt becoming SE 20 kt after midnight. Seas
3 ft. Snow and rain.
.SUN...SE wind 20 kt becoming SW wind 30 kt in the afternoon. 
Seas 4 ft. Rain.
.SUN NIGHT...SW wind 15 kt. Seas 2 ft.
.MON...SW wind 25 kt. Seas 4 ft.
.TUE...W wind 20 kt. Seas 3 ft.
.WED...S wind 15 kt. Seas 2 ft.

$$

PKZ172-160200-
Cape Sarichef to Nikolski Pacific Side-
356 AM AKST Sat Feb 15 2020

...GALE WARNING SUNDAY...

.TODAY...SW wind 30 kt diminishing to 20 kt in the afternoon. 
Seas 17 ft. Snow showers.
.TONIGHT...S wind 15 kt becoming SE 25 kt after midnight. 
Seas 11 ft. Rain and snow.
.SUN...S wind 40 kt becoming SW 30 kt in the afternoon. 
Seas 17 ft.
.SUN NIGHT...SW wind 20 kt. Seas 14 ft.
.MON...SW wind 30 kt. Seas 18 ft.
.TUE...SW wind 25 kt. Seas 18 ft.
.WED...SW wind 30 kt. Seas 21 ft.

$$

PKZ173-160200-
Nikolski to Seguam Island Bering Side-
356 AM AKST Sat Feb 15 2020

...GALE WARNING SUNDAY...

.TODAY...SW wind 30 kt diminishing to 20 kt in the afternoon. 
Seas 15 ft.
.TONIGHT...S wind 15 kt becoming E 25 kt after midnight. Seas 10
ft. Snow.
.SUN...E wind 25 kt becoming SW wind 25 kt in the afternoon. 
Seas 11 ft.
.SUN NIGHT...SW wind 25 kt. Seas 11 ft.
.MON...W wind 40 kt. Seas 21 ft.
.TUE...SW wind 30 kt. Seas 15 ft.
.WED...SW wind 25 kt. Seas 12 ft.

$$

PKZ174-160200-
Nikolski to Seguam Island Pacific Side-
356 AM AKST Sat Feb 15 2020

...GALE WARNING SUNDAY...

.TODAY...SW wind 30 kt diminishing to 15 kt in the afternoon. 
Seas 17 ft.
.TONIGHT...SE wind 15 kt becoming E 30 kt after midnight. 
Seas 11 ft. Rain.
.SUN...SW wind 35 kt diminishing to 25 kt in the afternoon. 
Seas 16 ft.
.SUN NIGHT...SW wind 25 kt. Seas 15 ft.
.MON...W wind 35 kt. Seas 22 ft.
.TUE...SW wind 30 kt. Seas 19 ft.
.WED...SW wind 30 kt. Seas 25 ft.

$$

PKZ175-160200-
Seguam Island to Adak Bering Side-
356 AM AKST Sat Feb 15 2020

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...SW wind 30 kt diminishing to 20 kt in the afternoon. 
Seas 13 ft.
.TONIGHT...SE wind 20 kt. Seas 9 ft. Snow and rain.
.SUN...E wind 30 kt becoming SW in the afternoon. Seas 9 ft. 
Snow and rain.
.SUN NIGHT...SW wind 25 kt. Seas 9 ft.
.MON...W wind 35 kt. Seas 18 ft.
.TUE...SW wind 25 kt. Seas 13 ft.
.WED...W wind 20 kt. Seas 11 ft.

$$

PKZ176-160200-
Seguam Island to Adak Pacific Side-
356 AM AKST Sat Feb 15 2020

...GALE WARNING SUNDAY...

.TODAY...SW wind 25 kt diminishing to 15 kt in the afternoon. 
Seas 15 ft.
.TONIGHT...SE wind 20 kt. Seas 10 ft. Rain.
.SUN...SW wind 35 kt. Seas 13 ft. Snow and rain.
.SUN NIGHT...SW wind 30 kt. Seas 14 ft.
.MON...W wind 35 kt. Seas 19 ft.
.TUE...S wind 25 kt. Seas 14 ft.
.WED...SW wind 30 kt. Seas 24 ft.

$$

PKZ177-160200-
Adak to Kiska-
356 AM AKST Sat Feb 15 2020

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...SW wind 30 kt becoming S wind 20 kt in the afternoon. 
Seas 13 ft.
.TONIGHT...SE wind 30 kt. Seas 11 ft. Snow and rain.
.SUN...SW wind 30 kt. Seas 12 ft. Widespread snow showers.
.SUN NIGHT...NW wind 30 kt. Seas 15 ft.
.MON...W wind 30 kt. Seas 15 ft.
.TUE...E wind 25 kt. Seas 10 ft.
.WED...NW wind 25 kt. Seas 22 ft.

$$

PKZ178-160200-
Kiska to Attu-
356 AM AKST Sat Feb 15 2020

...GALE WARNING SUNDAY...

.TODAY...SW wind 30 kt. Seas 13 ft.
.TONIGHT...S wind 25 kt becoming N after midnight. 
Seas 11 ft. Snow.
.SUN...N wind 40 kt. Seas 15 ft. Snow.
.SUN NIGHT...NW wind 30 kt. Seas 16 ft.
.MON...NW wind 30 kt. Seas 13 ft.
.TUE...NE wind 25 kt. Seas 15 ft.
.WED...N wind 25 kt. Seas 21 ft.

$$

PKZ179-160200-
Pribilof Islands Near Shore Waters-
356 AM AKST Sat Feb 15 2020

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...SW wind 30 kt. Seas 16 ft.
.TONIGHT...SW wind 25 kt becoming S wind 10 kt after midnight. 
Seas 13 ft.
.SUN...E wind 15 kt increasing to 30 kt in the afternoon. 
Seas 9 ft. Snow.
.SUN NIGHT...S wind 30 kt. Seas 12 ft.
.MON THROUGH TUE...NW wind 25 kt. Seas 12 ft.
.WED...NE wind 25 kt. Seas 9 ft.

$$

PKZ180-160200-
Kuskokwim Delta and Etolin Strait-
356 AM AKST Sat Feb 15 2020

...BRISK WIND ADVISORY SUNDAY...

.TODAY...S wind 20 kt. Snow.
.TONIGHT...S wind 20 kt.
.SUN...SE wind 15 kt becoming E 30 kt in the afternoon.  Snow.
.SUN NIGHT...SE wind 25 kt.
.MON...SE wind 30 kt.
.TUE...SW wind 20 kt.
.WED...N wind 20 kt.

$$

PKZ181-160200-
North and West of Nunivak Island-
356 AM AKST Sat Feb 15 2020

...BRISK WIND ADVISORY TODAY...

.TODAY...SE wind 25 kt. Snow.
.TONIGHT...S wind 20 kt.
.SUN...E wind 20 kt.
.SUN NIGHT...E wind 25 kt.
.MON...NE wind 30 kt.
.TUE...NW wind 20 kt.
.WED...N wind 25 kt.

$$

PKZ185-160200-
Saint Matthew Island Waters-
356 AM AKST Sat Feb 15 2020

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

.TODAY...E wind 30 kt E of Saint Matthew Island...NE 40 kt W of
Saint Matthew Island. Seas in ice free waters 13 ft. Heavy
freezing spray. Snow.
.TONIGHT...S wind 25 kt E of Saint Matthew Island...E 35 kt W of
Saint Matthew Island. Seas in ice free waters 12 ft. Heavy
freezing spray. Snow.
.SUN...S wind 20 kt. Seas in ice free waters 10 ft. Heavy freezing
spray.
.SUN NIGHT...NE wind 30 kt. Seas in ice free waters 8 ft.
.MON...N wind 35 kt. Seas in ice free waters 13 ft.
.TUE THROUGH WED...N wind 30 kt. Seas in ice free waters 11 ft.

$$

406 
FZAK52 PAFC 160040
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
340 PM AKST Sat Feb 15 2020

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

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

PKZ199-161400-
340 PM AKST Sat Feb 15 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 982 mb low 120 nm west of Saint Matthew Island will drift 
northward and slowly dissipate through Sun. A 989 mb low 140 nm
south of Shemya will strengthen to 975 mb 90 nm east of Shemya 
Sun morning, then exit to the North Pacific Sun night. A 995 mb 
low will form over the North Pacific Sat evening and track to 
40 nm north of Saint Paul Sun evening at 978 mb, then dissipate. 
A 987 mb low will form over the North Pacific on Sun and rapidly 
strengthen to 960 mb as it moves to 140 nm west of Cape Newenham
on Mon.

$$

PKZ150-161400-
South of the AK Peninsula Sitkinak to Castle Cape-
340 PM AKST Sat Feb 15 2020

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 12 ft.
.SUN...S wind 30 kt. Seas 12 ft. Rain.
.SUN NIGHT...S wind 35 kt. Seas 16 ft.
.MON...S wind 35 kt. Seas 19 ft.
.MON NIGHT...SW wind 25 kt. Seas 18 ft.
.TUE...SW wind 25 kt. Seas 14 ft.
.WED...SW wind 30 kt. Seas 13 ft.
.THU...W wind 30 kt. Seas 22 ft.

$$

PKZ155-161400-
South of the AK Peninsula Castle Cape to Cape Sarichef-
340 PM AKST Sat Feb 15 2020

...STORM WARNING SUNDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 13 ft.
.SUN...S wind 35 kt. Seas 15 ft. Rain.
.SUN NIGHT...S wind 45 kt increasing to 60 kt with gusts to 75 kt 
after midnight, Seas 17 ft building to 30 ft after midnight. From the
Shumagin Islands E, S wind 40 kt, Seas 15 ft building to 20 ft after
midnight. Rain.
.MON...SW wind 40 kt. Seas 26 ft.
.MON NIGHT...SW wind 30 kt. Seas 17 ft.
.TUE...W wind 30 kt. Seas 17 ft.
.WED...SW wind 30 kt. Seas 14 ft.
.THU...W wind 30 kt. Seas 24 ft.

$$

PKZ160-161400-
Bristol Bay-
340 PM AKST Sat Feb 15 2020

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...SW wind 15 kt.
.SUN...E wind 20 kt increasing to 30 kt in the afternoon. Snow with 
rain.
.SUN NIGHT...SE wind 20 kt becoming E 35 kt after midnight.
.MON AND MON NIGHT...S wind 35 kt.
.TUE...SW wind 30 kt.
.WED...SE wind 20 kt.
.THU...NW wind 25 kt.

$$

PKZ165-161400-
Port Heiden to Cape Sarichef-
340 PM AKST Sat Feb 15 2020

...STORM WARNING SUNDAY NIGHT...

.TONIGHT...S wind 15 kt. Seas 10 ft.
.SUN...E wind 30 kt becoming S. Seas 9 ft. Rain and snow.
.SUN NIGHT...SE wind 25 kt increasing to 55 kt with gusts to 70 kt 
after midnight. From Port Moller E, S wind 25 kt becoming SE 45 kt 
after midnight. Seas 11 ft. Rain and snow showers.
.MON...S wind 55 kt. Seas 20 ft.
.MON NIGHT...SW wind 40 kt. Seas 19 ft.
.TUE...W wind 30 kt. Seas 15 ft.
.WED...S wind 20 kt. Seas 8 ft.
.THU...NW wind 25 kt. Seas 11 ft.

$$

PKZ170-161400-
Cape Sarichef to Nikolski Bering Side-
340 PM AKST Sat Feb 15 2020

...STORM WARNING SUNDAY NIGHT...

.TONIGHT...SW wind 15 kt becoming E 25 kt after midnight. Seas 11
ft. Rain.
.SUN...E wind 30 kt becoming S 40 kt. Seas 12 ft.
.SUN NIGHT...SE wind 30 kt becoming W 55 kt with gusts to 70 kt 
after midnight. Seas 9 ft building to 15 ft after midnight. 
Widespread rain and snow showers.
.MON...SW wind 45 kt. Seas 19 ft.
.MON NIGHT...W wind 35 kt. Seas 17 ft.
.TUE...W wind 30 kt. Seas 16 ft.
.WED...SW wind 25 kt. Seas 9 ft.
.THU...NW wind 25 kt. Seas 13 ft.

$$

PKZ171-161400-
Unalaska Bay-
340 PM AKST Sat Feb 15 2020

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...SW wind 10 kt becoming SE 15 kt after midnight. Seas 2 
ft. Rain.
.SUN...S wind 25 kt. Seas 4 ft. Rain.
.SUN NIGHT...SE wind 25 kt becoming W 35 kt after midnight. Seas 5 
ft. Widespread rain and snow showers.
.MON...SW wind 30 kt. Seas 4 ft.
.MON NIGHT...W wind 25 kt. Seas 4 ft.
.TUE...W wind 25 kt. Seas 4 ft.
.WED...S wind 20 kt. Seas 3 ft.
.THU...NW wind 20 kt. Seas 7 ft.

$$

PKZ172-161400-
Cape Sarichef to Nikolski Pacific Side-
340 PM AKST Sat Feb 15 2020

...HURRICANE FORCE WIND WARNING SUNDAY NIGHT...

.TONIGHT...S wind 15 kt becoming SE 30 kt after midnight. Seas
12 ft. Rain.
.SUN...S wind 35 kt. Seas 17 ft.
.SUN NIGHT...SE wind 45 kt becoming SW 65 kt with gusts to 80 kt 
after midnight. Seas 18 ft building to 29 ft after midnight. 
Widespread rain and snow showers.
.MON...SW wind 35 kt. Seas 24 ft.
.MON NIGHT...W wind 30 kt. Seas 19 ft.
.TUE...W wind 30 kt. Seas 18 ft.
.WED...SW wind 25 kt. Seas 20 ft.
.THU...NW wind 30 kt. Seas 24 ft.

$$

PKZ173-161400-
Nikolski to Seguam Island Bering Side-
340 PM AKST Sat Feb 15 2020

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

.TONIGHT...S wind 15 kt becoming E 25 kt after midnight. Seas 10
ft. Rain and snow.
.SUN...SW wind 35 kt diminishing to 20 kt in the afternoon. Seas 11 
ft.
.SUN NIGHT...W wind 15 kt increasing to 35 kt. Seas 10 ft.
.MON...W wind 35 kt. Seas 12 ft.
.MON NIGHT...W wind 35 kt. Seas 16 ft.
.TUE THROUGH WED...W wind 30 kt. Seas 17 ft.
.THU...NW wind 30 kt. Seas 18 ft.

$$

PKZ174-161400-
Nikolski to Seguam Island Pacific Side-
340 PM AKST Sat Feb 15 2020

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

.TONIGHT...SE wind 20 kt increasing to 30 kt after midnight. Seas
12 ft. Rain.
.SUN...SW wind 35 kt diminishing to 20 kt in the afternoon. Seas
16 ft.
.SUN NIGHT...NW wind 25 kt increasing to 45 kt. Seas 14 ft.
.MON...W wind 30 kt. Seas 15 ft.
.MON NIGHT...W wind 30 kt. Seas 19 ft.
.TUE THROUGH WED...SW wind 30 kt. Seas 20 ft.
.THU...NW wind 25 kt. Seas 26 ft.

$$

PKZ175-161400-
Seguam Island to Adak Bering Side-
340 PM AKST Sat Feb 15 2020

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

.TONIGHT...E wind 20 kt. Seas 8 ft. Rain.
.SUN...SE wind 30 kt. Seas 8 ft. Snow with rain.
.SUN NIGHT...SW wind 15 kt. Seas 8 ft.
.MON AND MON NIGHT...W wind 30 kt. Seas 12 ft.
.TUE...SW wind 25 kt. Seas 12 ft.
.WED THROUGH THU...NW wind 25 kt. Seas 16 ft.

$$

PKZ176-161400-
Seguam Island to Adak Pacific Side-
340 PM AKST Sat Feb 15 2020

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

.TONIGHT...SE wind 20 kt. Seas 9 ft.
.SUN...SW wind 30 kt diminishing to 20 kt in the afternoon. Seas
12 ft. Rain.
.SUN NIGHT...SW wind 30 kt. Seas 15 ft.
.MON AND MON NIGHT...W wind 30 kt. Seas 17 ft.
.TUE...S wind 25 kt. Seas 11 ft.
.WED THROUGH THU...NW wind 25 kt. Seas 22 ft.

$$

PKZ177-161400-
Adak to Kiska-
340 PM AKST Sat Feb 15 2020

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 10 ft. Snow and rain.
.SUN...SW wind 30 kt. Seas 11 ft.
.SUN NIGHT...SW wind 35 kt becoming NW after midnight. Bering side,
seas 8 ft building to 15 ft after midnight. Pacific side, seas 17 
ft.
.MON...NW wind 35 kt. Seas 16 ft.
.MON NIGHT...W wind 25 kt. Seas 11 ft.
.TUE...SE wind 25 kt. Seas 10 ft.
.WED...N wind 25 kt. Seas 19 ft.
.THU...NW wind 20 kt. Seas 17 ft.

$$

PKZ178-161400-
Kiska to Attu-
340 PM AKST Sat Feb 15 2020

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

.TONIGHT...SW wind 25 kt becoming NW after midnight. Seas 11 ft.
.SUN...NW wind 35 kt. Seas 15 ft. Snow showers and rain showers.
.SUN NIGHT...N wind 40 kt. Seas 17 ft.
.MON...NW wind 30 kt. Seas 13 ft.
.MON NIGHT...NW wind 15 kt. Seas 8 ft.
.TUE...E wind 35 kt. Seas 14 ft.
.WED...N wind 25 kt. Seas 17 ft.
.THU...NW wind 15 kt. Seas 14 ft.

$$

PKZ179-161400-
Pribilof Islands Near Shore Waters-
340 PM AKST Sat Feb 15 2020

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

.TONIGHT...SW wind 20 kt. Seas 13 ft.
.SUN...E wind 30 kt. Seas 9 ft. Snow.
.SUN NIGHT...SW wind 25 kt becoming NW after midnight. Seas 10 ft.
.MON...NW wind 30 kt. Seas 12 ft.
.MON NIGHT...NW wind 35 kt. Seas 15 ft.
.TUE...NW wind 35 kt. Seas 14 ft.
.WED...NE wind 25 kt. Seas 11 ft.
.THU...NW wind 25 kt. Seas 11 ft.

$$

PKZ180-161400-
Kuskokwim Delta and Etolin Strait-
340 PM AKST Sat Feb 15 2020

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...S wind 15 kt.
.SUN...E wind 30 kt. Snow.
.SUN NIGHT...SE wind 30 kt becoming E 40 kt after midnight.  Snow.
.MON...SE wind 50 kt.
.MON NIGHT...S wind 40 kt.
.TUE...W wind 30 kt.
.WED...N wind 20 kt.
.THU...NW wind 25 kt.

$$

PKZ181-161400-
North and West of Nunivak Island-
340 PM AKST Sat Feb 15 2020

...BRISK WIND ADVISORY SUNDAY NIGHT...

.TONIGHT...S wind 20 kt.
.SUN...E wind 20 kt.
.SUN NIGHT...E wind 30 kt. Snow.
.MON AND MON NIGHT...E wind 35 kt.
.TUE...NW wind 30 kt.
.WED THROUGH THU...NW wind 25 kt.

$$

PKZ185-161400-
Saint Matthew Island Waters-
340 PM AKST Sat Feb 15 2020

...GALE WARNING TONIGHT...

.TONIGHT...S wind 20 kt E of Saint Matthew Island...E 35 kt W of
Saint Matthew Island. Seas in ice free waters 12 ft. Freezing
spray.
.SUN...E wind 20 kt E of Saint Matthew Island...S 25 kt W of Saint
Matthew Island. Seas in ice free waters 10 ft. Freezing spray.
.SUN NIGHT...NE wind 30 kt. Seas in ice free waters 7 ft. Freezing
spray.
.MON AND MON NIGHT...N wind 35 kt. Seas in ice free waters 12 ft.
.TUE...N wind 30 kt. Seas in ice free waters 10 ft.
.WED THROUGH THU...N wind 25 kt. Seas in ice free waters 9 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
353 AM AKST Thu Feb 13 2020

.ANALYSIS AND UPPER LEVELS...
The longwave pattern in amplifying across the forecast area
today. This is best seen by looking at the structure of the jet
stream. There is a trough/ridge couplet over the eastern Gulf Of
Alaska and the North Pacific/AKPEN. Which is followed by another
upper level trough over the western Aleutians and this feature is
associated with the 952 mb low west of Adak this morning. A tight
pressure gradient has developed with both lows, although the first
low is rapidly moving into Southeast leaving an inverted trough
over Prince William Sound. Gale and storm force winds were
detected overnight with the western system on ASCAT (advanced
scatterometer) data.

&&

.MODEL DISCUSSION...
The ensemble members of the GFS and the operational runs of the
GFS, ECMWF, NAM and Canadian are in lock step through 48 hrs.
This includes the tracks of the surface features and the advance
of the respective precipitation shields. This is echoed by the
NCEP RMOP (Relative Measure Of Predictability) which is projecting
high confidence scores through 48 hrs for the southern tier of
Alaska and the north and central Pacific.

&&

.AVIATION...
PANC...The Kenai radar (PAHG) had light returns over portions of
Turnagain Arm and near Fire Island early this morning. The main
event is over but there is a slight chance that a snow shower
could move over or in the vicinity of PANC early this morning.
Between 8-9z the cig increased from 2,200 ft to 4,600 feet.
Improvement is expected with the flight categories this TAF
package.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
Offshore flow will continue today as a ridge builds over the
area. The ridge will remain over the area tonight and weaken on
Friday. Gusty Gap winds will continue through today, weakening
tonight and Friday as the surface gradient weakens. Drier and
colder conditions will settle in across Southcentral through
Friday night. Another front will will reach Kodiak Island Thursday
night into Friday. Precipitation over the Island will likely be
all snow, but accumulations should not be heavy and winds will be
fairly light. Zonal flow aloft will drive this eastward across the
Gulf and keep Southcentral dry. The ridge will weaken and slide
east later Friday and Friday night as a weak upper trough
approaches from the southwest. With the approach of this trough,
clouds will increase and chances of snow will return to the the
Southcentral mainland.

&&

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

Clear and cold conditions persist for southwest Alaska. Wind
chills are currently flirting with the -40F mark in the Kuskokwim
Delta, so will stay on the safe side and leave the wind chill
advisory out through mid morning. Northeasterly flow with gusty
winds continues to move out of the Interior of the state
reinforcing the cold air in place. This is expected to change
tonight into tomorrow with the arrival of a front extending from
the storm force low currently entering the Bering Sea. Timing of
the front has varied slightly over the past day with each model
run. However, we have confidence that southwest AK will see a
shift in the weather late tonight. This will warm temperatures and
bring light snow to southwest AK.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3)...

The storm force low has arrived in the Bering Sea. The low center
is currently passing over the Western Aleutian Islands, close to
Amchitka. The center is well defined on GOES satellite. Recent
ASCAT imagery shows a swath of storm force winds on the backside
of this tightly-wrapped low, so the wind forecast appears to be
on track. What is still in a bit of question is where the low
will end up, as models keep flip flopping on tracks that take it
to the western Bering, or more east close the Pribilofs. So stay
tuned for forecast updates on storm track.

With that said, this low is still expected to weaken after in
crosses into the Bering, with winds dropping to small craft
advisory strength by Saturday morning. The initial front
associated with this low is currently pushing through the
Pribilofs and eastern Aleutians, so periods of snow and blowing
snow are in the forecast for both locations today. The Aleutians
will some mixed precip as well with warmer temperatures there.
Another front will push through Friday with similar weather.

&&

.MARINE (Days 3 through 5)...

Bering/Aleutians: Look for an active pattern, with a series of
lows and fronts transiting the region. While there is some
question about where each low will track, generally expect a good
chance of gale force winds through the 3 day period. The strongest
winds look to be on Sunday, with a low along the western
Aleutians. There is chance of storm force winds near the low
center.

Gulf of Alaska: The Gulf will be on the periphery of the Bering
Sea storms, with the strongest winds across the southern Gulf.
It looks like winds will remain below gale force Saturday through
Sunday, with just a small chance of gales over the southern Gulf.
A more significant storm out west on Monday looks likely to bring
gales to much of the western Gulf on Monday.

&&

.LONG TERM FORECAST (Days 3 through 7)...

Beginning the extended period forecast on Friday evening, there
will be a stacked closed low over the Central Bering Sea with a
triple point low over the Gulf of Alaska, moving eastward. Onshore
flow across Southwest Alaska will bring in snow showers and more
cloud cover and warmer temps while arctic high pressure over
Southcentral continues to keep temps below average through the
weekend. A series of subtle low amplitude shortwave troughs will
pass through the Southern Mainland Saturday through Sunday night,
but there is low certainty at this juncture on track. For now,
clouds will likely be on the increase with precipitation chances
rising although the threat looks rather minimal, and this will
also favor coastal locations.

A big change is looking more and more likely beginning Sunday
evening and lasting through at least Tuesday. The flow pattern is
going to amplify dramatically, and will result in a potential
significant storm cycle across all of Southern Alaska with threats
ranging from heavy snow, coastal rain, strong winds, and more. At
this juncture details are much uncertain, but residents should be
aware and stay tuned as the details and storm track become more
certain.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Wind Chill Advisory 155.
MARINE...Gale 130 131 132 411 412 413 170 172 173 174 175 177 178
179 180 185. Storm 176. Heavy Freezing Spray 127 139 414 412 180
185. FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...PJS
SOUTHCENTRAL ALASKA...BL
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...BJB
MARINE/LONG TERM...JA