Storm Warning 46, NWS Anchorage, AK

152 
FZAK52 PAFC 240024
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
324 PM AKST Sun Feb 23 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.

PKZ199-241330-
324 PM AKST Sun Feb 23 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 975 mb low 325 nm south of Dutch Harbor will weaken rapidly as it 
drifts eastward and dissipates Mon night. A 983 mb low 400 nm 
southwest of Attu will move to 150 nm south of Attu at 980 mb Tue 
afternoon. A 980 mb low 300 nm southeast of Sand Point Mon afternoon 
will move to 40 nm south of Sitkinak at 974 mb Tue afternoon.

$$

PKZ150-241330-
South of the AK Peninsula Sitkinak to Castle Cape-
324 PM AKST Sun Feb 23 2020

...STORM WARNING MONDAY AND MONDAY NIGHT...

.TONIGHT...E wind increasing to 30 kt. Seas 8 ft. Freezing spray.
.MON...NE wind 40 kt increasing to 50 kt in the afternoon. Seas
15 ft building to 21 ft in the afternoon. Freezing spray.
.MON NIGHT...NE wind 55 kt. Seas 30 ft. Snow.
.TUE...NE wind 50 kt. Seas 29 ft.
.TUE NIGHT...N wind 30 kt. Seas 19 ft.
.WED THROUGH FRI...NW wind 25 kt. Seas 12 ft.

$$

PKZ155-241330-
South of the AK Peninsula Castle Cape to Cape Sarichef-
324 PM AKST Sun Feb 23 2020

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...E wind increasing to 45 kt except E 35 kt from the 
Shumagin Islands E. Seas 24 ft. From the Shumagin Islands E, seas 9 
ft building to 15 ft after midnight.
.MON...NE wind 45 kt. Seas 21 ft.
.MON NIGHT...NE wind 45 kt. Seas 27 ft. Snow.
.TUE...NE wind 40 kt. Seas 25 ft.
.TUE NIGHT...W wind 25 kt. Seas 15 ft.
.WED...SW wind 20 kt. Seas 12 ft.
.THU...NW wind 15 kt. Seas 12 ft.
.FRI...Variable wind 10 kt. Seas 9 ft.

$$

PKZ160-241330-
Bristol Bay-
324 PM AKST Sun Feb 23 2020

...GALE WARNING MONDAY NIGHT...

.TONIGHT...NE wind increasing to 30 kt. 
.MON...NE wind 30 kt. 
.MON NIGHT...NE wind 35 kt. 
.TUE...NE wind 35 kt.
.TUE NIGHT...NE wind 25 kt.
.WED...NE wind 20 kt.
.THU THROUGH FRI...NE wind 15 kt.

$$

PKZ165-241330-
Port Heiden to Cape Sarichef-
324 PM AKST Sun Feb 23 2020

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...E wind 35 kt. Seas 12 ft. Freezing spray.
.MON...NE wind 35 kt. Seas 11 ft. Freezing spray.
.MON NIGHT...NE wind 40 kt. Seas 14 ft. Freezing spray.
.TUE...NE wind 40 kt. Seas 14 ft.
.TUE NIGHT...NE wind 30 kt. Seas 12 ft.
.WED...N wind 15 kt. Seas 6 ft.
.THU...N wind 20 kt. Seas 6 ft.
.FRI...NE wind 20 kt. Seas 6 ft.

$$

PKZ170-241330-
Cape Sarichef to Nikolski Bering Side-
324 PM AKST Sun Feb 23 2020

...GALE WARNING THROUGH MONDAY...

.TONIGHT...E wind 40 kt. Seas 14 ft.
.MON...E wind 35 kt. Seas 13 ft.
.MON NIGHT...E wind 30 kt. Seas 13 ft. Snow.
.TUE...NE wind 30 kt. Seas 14 ft.
.TUE NIGHT...NE wind 20 kt. Seas 11 ft.
.WED...Variable wind 10 kt. Seas 8 ft.
.THU...N wind 20 kt. Seas 7 ft.
.FRI...E wind 20 kt. Seas 7 ft.

$$

PKZ171-241330-
Unalaska Bay-
324 PM AKST Sun Feb 23 2020

...GALE WARNING THROUGH MONDAY...

.TONIGHT...E wind 40 kt. Gusts to 60 kt. Seas 6 ft. Snow.
.MON...E wind 35 kt. Gusts to 55 kt. Seas 5 ft. Snow.
.MON NIGHT...NE wind 30 kt. Seas 4 ft building to 10 ft after
midnight. Snow.
.TUE...NE wind 20 kt. Seas 7 ft.
.TUE NIGHT...Variable wind less than 10 kt. Seas 3 ft.
.WED...Variable wind less than 10 kt. Seas 2 ft.
.THU...N wind 10 kt. Seas 3 ft.
.FRI...E wind 15 kt. Seas 2 ft.

$$

PKZ172-241330-
Cape Sarichef to Nikolski Pacific Side-
324 PM AKST Sun Feb 23 2020

...STORM WARNING TONIGHT...

.TONIGHT...E wind increasing to 50 kt. Seas building to 33 ft. Snow.
.MON...E wind 35 kt. Seas 24 ft. Snow.
.MON NIGHT...E wind 30 kt. Seas 19 ft. Snow.
.TUE...NE wind 30 kt. Seas 19 ft.
.TUE NIGHT...SW wind 20 kt. Seas 12 ft.
.WED...SW wind 15 kt. Seas 14 ft.
.THU...NW wind 15 kt. Seas 12 ft.
.FRI...E wind 20 kt. Seas 9 ft.

$$

PKZ173-241330-
Nikolski to Seguam Island Bering Side-
324 PM AKST Sun Feb 23 2020

...GALE WARNING THROUGH MONDAY...

.TONIGHT...E wind 40 kt. Seas 19 ft.
.MON...E wind 35 kt. Seas 18 ft.
.MON NIGHT...E wind 30 kt. Seas 14 ft. Snow.
.TUE...E wind 25 kt. Seas 12 ft.
.TUE NIGHT...SE wind 15 kt. Seas 11 ft.
.WED...Variable wind 10 kt. Seas 8 ft.
.THU...NE wind 20 kt. Seas 8 ft.
.FRI...E wind 20 kt. Seas 9 ft.

$$

PKZ174-241330-
Nikolski to Seguam Island Pacific Side-
324 PM AKST Sun Feb 23 2020

...STORM WARNING TONIGHT...

.TONIGHT...NE wind 50 kt. Seas 34 ft. Snow.
.MON...E wind 30 kt. Seas 22 ft.
.MON NIGHT...E wind 30 kt. Seas 17 ft. Snow.
.TUE...SE wind 20 kt. Seas 13 ft.
.TUE NIGHT...SW wind 15 kt. Seas 18 ft.
.WED...SW wind 15 kt. Seas 17 ft.
.THU...SW wind 20 kt. Seas 12 ft.
.FRI...E wind 20 kt. Seas 8 ft.

$$

PKZ175-241330-
Seguam Island to Adak Bering Side-
324 PM AKST Sun Feb 23 2020

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

.TONIGHT...E wind 30 kt. Seas 18 ft.
.MON...E wind 30 kt. Seas 18 ft.
.MON NIGHT...E wind 30 kt. Seas 14 ft. Snow and rain showers.
.TUE...E wind 30 kt. Seas 14 ft.
.TUE NIGHT...SE wind 20 kt. Seas 12 ft.
.WED...E wind 15 kt. Seas 9 ft.
.THU THROUGH FRI...E wind 20 kt. Seas 9 ft.

$$

PKZ176-241330-
Seguam Island to Adak Pacific Side-
324 PM AKST Sun Feb 23 2020

...GALE WARNING TONIGHT...

.TONIGHT...NE wind 40 kt. Seas 27 ft.
.MON...E wind 30 kt. Seas 22 ft.
.MON NIGHT...E wind 25 kt. Seas 15 ft. Snow and rain showers.
.TUE...S wind 25 kt. Seas 16 ft.
.TUE NIGHT...S wind 15 kt. Seas 18 ft.
.WED...SW wind 15 kt. Seas 16 ft.
.THU THROUGH FRI...SE wind 20 kt. Seas 10 ft.

$$

PKZ177-241330-
Adak to Kiska-
324 PM AKST Sun Feb 23 2020

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

.TONIGHT...E wind 30 kt. Seas 11 ft.
.MON...E wind 30 kt. Seas 14 ft Bering side...18 ft Pacific side. 
Snow showers.
.MON NIGHT...E wind 30 kt. Seas 15 ft. Snow showers and rain
showers.
.TUE...E wind 30 kt. Seas 17 ft.
.TUE NIGHT...E wind 25 kt. Seas 16 ft.
.WED...N wind 25 kt. Seas 13 ft.
.THU THROUGH FRI...NE wind 20 kt. Seas 12 ft.

$$

PKZ178-241330-
Kiska to Attu-
324 PM AKST Sun Feb 23 2020

...GALE WARNING MONDAY AND MONDAY NIGHT...

.TONIGHT...E wind increasing to 30 kt. Seas 12 ft.
.MON...E wind 35 kt. Seas 15 ft. Snow showers.
.MON NIGHT...E wind 35 kt. Seas 18 ft. Snow showers.
.TUE AND TUE NIGHT...NE wind 30 kt. Seas 17 ft.
.WED...NE wind 30 kt. Seas 14 ft.
.THU...NE wind 25 kt. Seas 13 ft.
.FRI...NE wind 20 kt. Seas 11 ft.

$$

PKZ179-241330-
Pribilof Islands Near Shore Waters-
324 PM AKST Sun Feb 23 2020

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

.TONIGHT...E wind increasing to 30 kt. Seas 13 ft. Freezing spray.
.MON...E wind 30 kt. Seas 14 ft. Freezing spray.
.MON NIGHT...E wind 30 kt. Seas 12 ft. Freezing spray.
.TUE AND TUE NIGHT...NE wind 30 kt. Seas 11 ft.
.WED...NE wind 25 kt. Seas 9 ft.
.THU...NE wind 20 kt. Seas 6 ft.
.FRI...NE wind 25 kt. Seas 6 ft.

$$

PKZ180-241330-
Kuskokwim Delta and Etolin Strait-
324 PM AKST Sun Feb 23 2020

...BRISK WIND ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...E wind 30 kt. 
.MON...NE wind 30 kt. 
.MON NIGHT...NE wind 30 kt. 
.TUE AND TUE NIGHT...NE wind 30 kt.
.WED...NE wind 25 kt.
.THU...N wind 20 kt.
.FRI...N wind 15 kt.

$$

PKZ181-241330-
North and West of Nunivak Island-
324 PM AKST Sun Feb 23 2020

...BRISK WIND ADVISORY MONDAY NIGHT...

.TONIGHT...SE wind 20 kt.
.MON...E wind 20 kt.
.MON NIGHT...E wind 25 kt.
.TUE AND TUE NIGHT...NE wind 30 kt.
.WED...N wind 30 kt.
.THU...N wind 20 kt.
.FRI...NE wind 15 kt.

$$

PKZ185-241330-
Saint Matthew Island Waters-
324 PM AKST Sun Feb 23 2020

...BRISK WIND ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SE wind 25 kt.
.MON...SE wind 25 kt.
.MON NIGHT...E wind 25 kt.
.TUE AND TUE NIGHT...NE wind 30 kt.
.WED...N wind 30 kt.
.THU...N wind 20 kt.
.FRI...E wind 20 kt.

$$

248 
FZAK52 PAFC 241250
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
350 AM AKST Mon Feb 24 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.

PKZ199-250215-
350 AM AKST Mon Feb 24 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A weakening 981 mb low 350 nm southwest of Dutch Harbor Mon 
morning will dissipate by early Tue morning. A strengthening 
front associated with a 978 mb North Pacific low will impact the 
eastern Aleutians and Western Alaska Peninsula beginning Mon 
afternoon and then weaken by Tue evening.

$$

PKZ150-250215-
South of the AK Peninsula Sitkinak to Castle Cape-
350 AM AKST Mon Feb 24 2020

...STORM WARNING THROUGH TUESDAY...

.TODAY...NE wind 40 kt increasing to 50 kt in the afternoon. 
Seas 15 ft building to 22 ft in the afternoon. Freezing spray 
in the morning.
.TONIGHT...NE wind 55 kt. Seas 31 ft. Snow.
.TUE...NE wind 50 kt diminishing to 35 kt in the afternoon. 
Seas 29 ft subsiding to 23 ft in the afternoon. Snow and rain.
.TUE NIGHT...N wind 30 kt. Seas 19 ft.
.WED...SW wind 25 kt. Seas 13 ft.
.THU THROUGH FRI...NW wind 20 kt. Seas 11 ft.

$$

PKZ155-250215-
South of the AK Peninsula Castle Cape to Cape Sarichef-
350 AM AKST Mon Feb 24 2020

...GALE WARNING THROUGH TUESDAY...

.TODAY...NE wind 45 kt. Seas 21 ft.
.TONIGHT...NE wind 45 kt. Seas 27 ft. Snow.
.TUE...NE wind 30 kt except NE 45 kt from the Shumagin Islands E.
Seas 21 ft except 28 ft from the Shumagin Islands E. Snow.
.TUE NIGHT...W wind 25 kt. Seas 15 ft.
.WED...SW wind 20 kt. Seas 12 ft.
.THU...W wind 20 kt. Seas 11 ft.
.FRI...NW wind 20 kt. Seas 11 ft.

$$

PKZ160-250215-
Bristol Bay-
350 AM AKST Mon Feb 24 2020

...GALE WARNING TONIGHT AND TUESDAY...

.TODAY...NE wind 30 kt. 
.TONIGHT THROUGH TUE...NE wind 35 kt. 
.TUE NIGHT...NE wind 25 kt.
.WED...NE wind 20 kt.
.THU...N wind 15 kt.
.FRI...N wind 20 kt.

$$

PKZ165-250215-
Port Heiden to Cape Sarichef-
350 AM AKST Mon Feb 24 2020

...GALE WARNING THROUGH TUESDAY...

.TODAY...NE wind 35 kt. Seas 12 ft. Freezing spray. Heavy 
freezing spray E of Port Moller in the morning.
.TONIGHT...NE wind 40 kt. Seas 14 ft. Freezing spray.
.TUE...NE wind 40 kt. Seas 14 ft. Freezing spray. Snow.
.TUE NIGHT...NE wind 30 kt. Seas 12 ft.
.WED...SW wind 15 kt. Seas 6 ft.
.THU...NW wind 15 kt. Seas 5 ft.
.FRI...NE wind 25 kt. Seas 5 ft.

$$

PKZ170-250215-
Cape Sarichef to Nikolski Bering Side-
350 AM AKST Mon Feb 24 2020

...GALE WARNING TODAY...

.TODAY...E wind 35 kt. Seas 13 ft.
.TONIGHT...E wind 30 kt. Seas 12 ft. Snow.
.TUE...NE wind 30 kt. Seas 14 ft. Snow.
.TUE NIGHT...NE wind 20 kt. Seas 11 ft.
.WED...Variable wind 10 kt. Seas 8 ft.
.THU...N wind 15 kt. Seas 6 ft.
.FRI...E wind 25 kt. Seas 8 ft.

$$

PKZ171-250215-
Unalaska Bay-
350 AM AKST Mon Feb 24 2020

...GALE WARNING TODAY...

.TODAY...E wind 35 kt. Gusts to 50 kt. Seas 5 ft. Snow.
.TONIGHT...NE wind 30 kt. Seas 4 ft building to 10 ft after
midnight. Snow.
.TUE...NE wind 20 kt diminishing to 10 kt in the afternoon. 
Seas 7 ft. Snow.
.TUE NIGHT...Variable wind less than 10 kt. Seas 3 ft.
.WED...Variable wind less than 10 kt. Seas 2 ft.
.THU...NW wind 15 kt. Seas 4 ft.
.FRI...E wind 20 kt. Seas 3 ft.

$$

PKZ172-250215-
Cape Sarichef to Nikolski Pacific Side-
350 AM AKST Mon Feb 24 2020

...GALE WARNING TODAY...

.TODAY...E wind 35 kt. Seas 25 ft. Snow.
.TONIGHT...E wind 30 kt. Seas 19 ft. Snow.
.TUE...NE wind 30 kt diminishing to 15 kt in the afternoon. 
Seas 19 ft. Snow.
.TUE NIGHT...SW wind 20 kt. Seas 12 ft.
.WED...SW wind 15 kt. Seas 14 ft.
.THU...NW wind 20 kt. Seas 12 ft.
.FRI...E wind 30 kt. Seas 11 ft.

$$

PKZ173-250215-
Nikolski to Seguam Island Bering Side-
350 AM AKST Mon Feb 24 2020

...GALE WARNING TODAY...

.TODAY...E wind 35 kt. Seas 17 ft.
.TONIGHT...E wind 30 kt. Seas 14 ft. Snow.
.TUE...E wind 25 kt. Seas 12 ft. Snow.
.TUE NIGHT...SE wind 15 kt. Seas 11 ft.
.WED...Variable wind 10 kt. Seas 8 ft.
.THU...N wind 15 kt. Seas 6 ft.
.FRI...SE wind 35 kt. Seas 14 ft.

$$

PKZ174-250215-
Nikolski to Seguam Island Pacific Side-
350 AM AKST Mon Feb 24 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...E wind 30 kt. Seas 23 ft.
.TONIGHT...E wind 30 kt. Seas 17 ft. Snow.
.TUE...E wind 20 kt in the morning becoming variable 10 kt. 
Seas 13 ft. Snow.
.TUE NIGHT...SW wind 15 kt. Seas 18 ft.
.WED...SW wind 15 kt. Seas 17 ft.
.THU...W wind 15 kt. Seas 13 ft.
.FRI...SE wind 35 kt. Seas 14 ft.

$$

PKZ175-250215-
Seguam Island to Adak Bering Side-
350 AM AKST Mon Feb 24 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...E wind 30 kt. Seas 18 ft.
.TONIGHT...E wind 30 kt. Seas 15 ft. Snow and rain showers.
.TUE...E wind 30 kt. Seas 14 ft. Snow showers.
.TUE NIGHT...SE wind 20 kt. Seas 12 ft.
.WED...E wind 20 kt. Seas 10 ft.
.THU...S wind 20 kt. Seas 10 ft.
.FRI...SE wind 45 kt. Seas 14 ft.

$$

PKZ176-250215-
Seguam Island to Adak Pacific Side-
350 AM AKST Mon Feb 24 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...E wind 30 kt. Seas 22 ft.
.TONIGHT...E wind 25 kt. Seas 15 ft. Snow and rain showers.
.TUE...SE wind 25 kt becoming S 15 kt in the afternoon. Seas 16
ft.
.TUE NIGHT...S wind 15 kt. Seas 18 ft.
.WED THROUGH THU...SW wind 15 kt. Seas 15 ft.
.FRI...SE wind 40 kt. Seas 19 ft.

$$

PKZ177-250215-
Adak to Kiska-
350 AM AKST Mon Feb 24 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...E wind 30 kt. Seas 14 ft Bering side...19 ft Pacific side. 
Snow showers.
.TONIGHT...E wind 30 kt. Seas 15 ft. Snow showers and widespread
rain showers.
.TUE...E wind 30 kt. Seas 17 ft.
.TUE NIGHT...E wind 25 kt. Seas 16 ft.
.WED...N wind 25 kt. Seas 13 ft.
.THU...S wind 20 kt. Seas 12 ft.
.FRI...E wind 45 kt. Seas 23 ft.

$$

PKZ178-250215-
Kiska to Attu-
350 AM AKST Mon Feb 24 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...E wind 35 kt. Seas 15 ft. Snow showers.
.TONIGHT...E wind 35 kt. Seas 18 ft. Snow showers.
.TUE...E wind 30 kt. Seas 18 ft.
.TUE NIGHT...NE wind 30 kt. Seas 15 ft.
.WED...NE wind 30 kt. Seas 14 ft.
.THU...E wind 20 kt. Seas 12 ft.
.FRI...E wind 50 kt. Seas 26 ft.

$$

PKZ179-250215-
Pribilof Islands Near Shore Waters-
350 AM AKST Mon Feb 24 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND TUESDAY...

.TODAY...E wind 30 kt. Seas 14 ft. Freezing spray.
.TONIGHT...E wind 30 kt. Seas 13 ft. Heavy freezing spray north of St
Paul Island.
.TUE...NE wind 30 kt. Seas 11 ft. Heavy freezing spray in morning
north of St Paul Island.
.TUE NIGHT...NE wind 30 kt. Seas 10 ft.
.WED...NE wind 25 kt. Seas 9 ft.
.THU...NE wind 20 kt. Seas 6 ft.
.FRI...E wind 35 kt. Seas 12 ft.

$$

PKZ180-250215-
Kuskokwim Delta and Etolin Strait-
350 AM AKST Mon Feb 24 2020

...BRISK WIND ADVISORY THROUGH TUESDAY...

.TODAY...NE wind 30 kt. 
.TONIGHT THROUGH TUE NIGHT...NE wind 30 kt.
.WED...NE wind 25 kt.
.THU...N wind 20 kt.
.FRI...N wind 25 kt.

$$

PKZ181-250215-
North and West of Nunivak Island-
350 AM AKST Mon Feb 24 2020

...BRISK WIND ADVISORY TONIGHT AND TUESDAY...

.TODAY...E wind 20 kt.
.TONIGHT...E wind 25 kt.
.TUE AND TUE NIGHT...NE wind 30 kt.
.WED...N wind 30 kt.
.THU...N wind 25 kt.
.FRI...NE wind 20 kt.

$$

PKZ185-250215-
Saint Matthew Island Waters-
350 AM AKST Mon Feb 24 2020

...HEAVY FREEZING SPRAY WARNING TONIGHT AND TUESDAY...
...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SE wind 25 kt. Seas in ice free waters 9 ft.
.TONIGHT...E wind 25 kt. Seas in ice free waters 10 ft. 
Heavy freezing spray west of St Matthew Island.
.TUE...NE wind 30 kt. Seas in ice free waters 10 ft. 
Heavy freezing spray west of St Matthew Island.
.TUE NIGHT THROUGH WED...NE wind 30 kt. Seas in ice free 
waters 10 ft.
.THU...N wind 20 kt. Seas in ice free waters 5 ft.
.FRI...E wind 30 kt. Seas in ice free waters 8 ft.

$$

285 
FZAK52 PAFC 250005
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
305 PM AKST Mon Feb 24 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.

PKZ199-251245-
305 PM AKST Mon Feb 24 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 976 mb low 390 nm southwest of Attu moves to 150 nm northwest 
of Adak at 989 mb for Wed afternoon.

$$

PKZ150-251245-
South of the AK Peninsula Sitkinak to Castle Cape-
305 PM AKST Mon Feb 24 2020

...STORM WARNING THROUGH TUESDAY...

.TONIGHT...NE wind 55 kt. Seas 31 ft. Snow.
.TUE...NE wind 50 kt. Seas 29 ft subsiding to 23 ft in the
afternoon. Snow and rain.
.TUE NIGHT...N wind 30 kt. Seas 19 ft. Rain.
.WED...W wind 25 kt. Seas 13 ft.
.WED NIGHT...SW wind 20 kt. Seas 11 ft.
.THU THROUGH FRI...NW wind 20 kt. Seas 11 ft.
.SAT...S wind 15 kt. Seas 7 ft.

$$

PKZ155-251245-
South of the AK Peninsula Castle Cape to Cape Sarichef-
305 PM AKST Mon Feb 24 2020

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...NE wind 45 kt. Seas 27 ft. Snow.
.TUE...NE wind 30 kt except NE 45 kt from the Shumagin Islands E.
Seas 21 ft except 28 ft from the Shumagin Islands E. Snow.
.TUE NIGHT...NE wind 20 kt becoming SW after midnight. From the
Shumagin Islands E, N wind 30 kt becoming W after midnight. Seas
15 ft.
.WED AND WED NIGHT...SW wind 20 kt. Seas 12 ft.
.THU...W wind 20 kt. Seas 11 ft.
.FRI...NW wind 20 kt. Seas 11 ft.
.SAT...S wind 20 kt. Seas 9 ft.

$$

PKZ160-251245-
Bristol Bay-
305 PM AKST Mon Feb 24 2020

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...NE wind 35 kt.
.TUE...NE wind 35 kt.
.TUE NIGHT...NE wind 25 kt.
.WED...NE wind 20 kt.
.WED NIGHT...S wind 10 kt.
.THU...N wind 15 kt.
.FRI...N wind 20 kt.
.SAT...E wind 20 kt.

$$

PKZ165-251245-
Port Heiden to Cape Sarichef-
305 PM AKST Mon Feb 24 2020

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...NE wind 40 kt. Seas 14 ft. Freezing spray.
.TUE...NE wind 40 kt. Seas 14 ft. Freezing spray. Snow.
.TUE NIGHT...NE wind 30 kt. Seas 12 ft. Freezing spray.
.WED...SW wind 15 kt. Seas 6 ft.
.WED NIGHT...W wind 15 kt. Seas 5 ft.
.THU...NW wind 15 kt. Seas 5 ft.
.FRI...NE wind 25 kt. Seas 5 ft.
.SAT...SE wind 25 kt. Seas 7 ft.

$$

PKZ170-251245-
Cape Sarichef to Nikolski Bering Side-
305 PM AKST Mon Feb 24 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...E wind 30 kt. Seas 12 ft. Snow.
.TUE...NE wind 30 kt. Seas 14 ft. Snow.
.TUE NIGHT...E wind 20 kt. Seas 11 ft. Snow.
.WED...Variable wind 10 kt. Seas 8 ft.
.WED NIGHT...Variable wind 10 kt. Seas 6 ft.
.THU...N wind 15 kt. Seas 6 ft.
.FRI...E wind 25 kt. Seas 8 ft.
.SAT...S wind 25 kt. Seas 9 ft.

$$

PKZ171-251245-
Unalaska Bay-
305 PM AKST Mon Feb 24 2020

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NE wind 30 kt. Seas 4 ft building to 10 ft after
midnight. Snow.
.TUE...NE wind 20 kt. Seas 7 ft. Snow.
.TUE NIGHT...Variable wind less than 10 kt. Seas 2 ft. Snow
showers.
.WED AND WED NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.THU...NW wind 15 kt. Seas 4 ft.
.FRI...E wind 20 kt. Seas 3 ft.
.SAT...S wind 20 kt. Seas 3 ft.

$$

PKZ172-251245-
Cape Sarichef to Nikolski Pacific Side-
305 PM AKST Mon Feb 24 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...E wind 30 kt. Seas 19 ft. Snow.
.TUE...NE wind 30 kt becoming E 15 kt in the afternoon. Seas 19
ft. Snow.
.TUE NIGHT...SW wind 20 kt. Seas 12 ft.
.WED AND WED NIGHT...SW wind 15 kt. Seas 14 ft.
.THU...NW wind 20 kt. Seas 12 ft.
.FRI...E wind 30 kt. Seas 11 ft.
.SAT...S wind 25 kt. Seas 13 ft.

$$

PKZ173-251245-
Nikolski to Seguam Island Bering Side-
305 PM AKST Mon Feb 24 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...E wind 30 kt. Seas 14 ft. Snow.
.TUE...E wind 25 kt. Seas 12 ft. Snow.
.TUE NIGHT...E wind 15 kt. Seas 11 ft.
.WED...Variable wind 10 kt. Seas 8 ft.
.WED NIGHT...Variable wind 10 kt. Seas 7 ft.
.THU...N wind 15 kt. Seas 6 ft.
.FRI...SE wind 35 kt. Seas 14 ft.
.SAT...S wind 30 kt. Seas 14 ft.

$$

PKZ174-251245-
Nikolski to Seguam Island Pacific Side-
305 PM AKST Mon Feb 24 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...E wind 30 kt. Seas 17 ft. Snow.
.TUE...E wind 20 kt in the morning becoming variable 10 kt. Seas
13 ft. Snow.
.TUE NIGHT...SW wind 15 kt. Seas 18 ft.
.WED AND WED NIGHT...SW wind 15 kt. Seas 16 ft.
.THU...W wind 15 kt. Seas 13 ft.
.FRI...SE wind 35 kt. Seas 14 ft.
.SAT...SW wind 30 kt. Seas 19 ft.

$$

PKZ175-251245-
Seguam Island to Adak Bering Side-
305 PM AKST Mon Feb 24 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...E wind 15 kt becoming 30 kt after midnight. Seas 15 ft. 
Snow and rain showers.
.TUE...E wind 30 kt. Seas 14 ft. Snow showers.
.TUE NIGHT...SE wind 20 kt. Seas 12 ft.
.WED...Variable wind 10 kt. Seas 9 ft.
.WED NIGHT...NE wind 20 kt. Seas 10 ft.
.THU...S wind 20 kt. Seas 10 ft.
.FRI...SE wind 45 kt. Seas 14 ft.
.SAT...S wind 35 kt. Seas 14 ft.

$$

PKZ176-251245-
Seguam Island to Adak Pacific Side-
305 PM AKST Mon Feb 24 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...E wind 25 kt. Seas 15 ft. Snow and rain showers.
.TUE...SE wind 25 kt becoming S 15 kt in the afternoon. Seas 16
ft.
.TUE NIGHT...SW wind 15 kt. Seas 18 ft.
.WED...Variable wind 10 kt. Seas 16 ft.
.WED NIGHT...W wind 15 kt. Seas 15 ft.
.THU...SW wind 15 kt. Seas 13 ft.
.FRI...SE wind 40 kt. Seas 19 ft.
.SAT...SW wind 40 kt. Seas 27 ft.

$$

PKZ177-251245-
Adak to Kiska-
305 PM AKST Mon Feb 24 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...E wind 30 kt. Seas 15 ft. Snow showers and widespread
rain showers.
.TUE...E wind 30 kt. Seas 17 ft.
.TUE NIGHT...E wind 25 kt. Seas 16 ft.
.WED AND WED NIGHT...N wind 25 kt. Seas 13 ft.
.THU...S wind 20 kt. Seas 12 ft.
.FRI...E wind 45 kt. Seas 23 ft.
.SAT...S wind 45 kt. Seas 30 ft.

$$

PKZ178-251245-
Kiska to Attu-
305 PM AKST Mon Feb 24 2020

...GALE WARNING TONIGHT...

.TONIGHT...E wind 35 kt. Seas 18 ft. Snow showers.
.TUE...E wind 30 kt. Seas 18 ft.
.TUE NIGHT...NE wind 30 kt. Seas 15 ft.
.WED...NE wind 30 kt. Seas 14 ft.
.WED NIGHT...NE wind 25 kt. Seas 14 ft.
.THU...E wind 20 kt. Seas 12 ft.
.FRI...E wind 50 kt. Seas 26 ft.
.SAT...NE wind 45 kt. Seas 26 ft.

$$

PKZ179-251245-
Pribilof Islands Near Shore Waters-
305 PM AKST Mon Feb 24 2020

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

.TONIGHT...E wind 30 kt. Seas 13 ft. Heavy freezing spray north of
Saint Paul Island.
.TUE...NE wind 30 kt. Seas 11 ft. Heavy freezing spray.
.TUE NIGHT...NE wind 30 kt. Seas 10 ft. Heavy freezing spray.
.WED...NE wind 25 kt. Seas 9 ft.
.WED NIGHT...NE wind 20 kt. Seas 7 ft.
.THU...NE wind 20 kt. Seas 6 ft.
.FRI...E wind 35 kt. Seas 12 ft.
.SAT...S wind 35 kt. Seas 12 ft.

$$

PKZ180-251245-
Kuskokwim Delta and Etolin Strait-
305 PM AKST Mon Feb 24 2020

...BRISK WIND ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...NE wind 30 kt.
.TUE...NE wind 30 kt.
.TUE NIGHT...NE wind 30 kt.
.WED...NE wind 25 kt.
.WED NIGHT...N wind 20 kt.
.THU...N wind 20 kt.
.FRI...N wind 25 kt.
.SAT...E wind 25 kt.

$$

PKZ181-251245-
North and West of Nunivak Island-
305 PM AKST Mon Feb 24 2020

...BRISK WIND ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...E wind 25 kt.
.TUE...NE wind 30 kt.
.TUE NIGHT...NE wind 30 kt.
.WED AND WED NIGHT...N wind 30 kt.
.THU...N wind 25 kt.
.FRI...NE wind 20 kt.
.SAT...E wind 25 kt.

$$

PKZ185-251245-
Saint Matthew Island Waters-
305 PM AKST Mon Feb 24 2020

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

.TONIGHT...E wind 25 kt. Seas in ice free waters 10 ft. Heavy
freezing spray.
.TUE...NE wind 30 kt. Seas in ice free waters 10 ft. Heavy
freezing spray.
.TUE NIGHT...NE wind 30 kt. Seas in ice free waters 10 ft. Heavy
freezing spray.
.WED AND WED NIGHT...N wind 30 kt. Seas in ice free waters 9 ft.
.THU...N wind 20 kt. Seas in ice free waters 5 ft.
.FRI...E wind 30 kt. Seas in ice free waters 8 ft.
.SAT...NE wind 40 kt. Seas in ice free waters 14 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion...CORRECTED
National Weather Service Anchorage AK
545 PM AKST Sat Feb 22 2020

Corrected typo

.ANALYSIS AND UPPER LEVELS...
The main upper level low remains over eastern Russia with two
troughs extending out of it over the forecast area. The first is
over the mainland part of Alaska with a second one over the
Western Bering Sea and interacting with the 250 mb jet stream
south of the Aleutians. This location is where the strong surface
low has intensified since yesterday. This low is at peak intensity
this afternoon as another surface low has developed southeast of
it. This new low is developing in the left exit region of the jet
and will become the main low we focus on the next few days.

A weak surface low near Prince William Sound is persisting with
cold air moving through the Aleutian Range and into Kodiak Island
and the Gulf.

&&

.MODEL DISCUSSION...
The biggest issue with the models revolves around the front
entering the Gulf of Alaska from the south (and the movement of
the parent low south of Kodiak Island) Monday night into Tuesday.
From the 12Z models, the GFS, NAM, and even GEM are very similar
with the ECMWF notable farther west with the front and the low.
This placement of these features will have a large impact on the
weather in Kodiak. There is the potential for another significant
winter weather event with this system but it will be dependent on
the front's behavior.

&&

.AVIATION...
PANC...MVFR conditions in occasional light snow will persist into
this evening. Ceilings are expected to remain below 5000 ft until
late morning Sunday though visibilities are expected to remain
mostly VFR.

&&

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

A series of compact polar surface lows are spinning underneath an
upper-level trough continuing to slowly lift north and east
across the northern Gulf. The first of these surface lows is
positioned near Ninilchik, and has been producing widespread snow
showers across Cook Inlet. Locations around Kachemak Bay continue
to see the most persistent and heaviest snow showers. These are
aided by the gusty westerly flow along the backside of this
feature coupled with the continued advection of colder air. Near
a foot of new snow has been reported near Homer over the past 24
hours. These snow showers will continue through the overnight and
early morning hours from the Matanuska Valley south to Seldovia as
the low shifts easts and weakens while the developing northwest
flow brings an upslope flow across the Chugach and Kenai
Mountains.

The second surface low can be seen on satellite imagery just
beginning to spin up south of Seward this afternoon. As this
system moves east, it will help strengthen the pressure gradient
between it and a building ridge over interior Alaska. Given this
set up, strong northerly outflow winds along the coast and through
passes will develop quickly. Winds will quickly ramp up along the
eastern Kenai Peninsula and western Prince William Sound tonight,
peaking late tomorrow before slowly diminishing on Monday. For
the Valdez waterways, Thompson Pass, and Copper River Delta, winds
will increase early Sunday and remain quite strong through
Tuesday.

The third surface low is near Cordova, and is bringing snow
showers to Prince William Sound. This feature will weaken into an
open trough tonight before getting absorbed into the
aforementioned low. As these systems and the upper-level trough
move east, the northerly flow behind it will usher in colder and
drier air, with temperatures falling well below normal for the
next couple of days.

Late Monday night, a ridge centered over the interior begins to
shift east toward the Alcan border which keeps colder trends in
place for all of the southern mainland. Temperatures across the
Copper River Basin cool to around 20 degrees below zero. Gusty offshore
winds along the coasts continue through Tuesday as the dense cold
pool filters through channeled terrain. Gusty north winds are
also expected across the northern Parks Highway, Matanuska Valley
and Cook Inlet. The next front developing over the southern Gulf
Monday afternoon is expected to bring the next round of storm
force winds across the Gulf waters and Shelikof Strait Monday
night through Tuesday morning. Gusty conditions taper down Tuesday
afternoon, except they will persist near the low center with
small craft to gale force winds just southeast of Kodiak Island
Tuesday afternoon. Precipitation along the front will start as
snow then change over to rain as a warmer air mass moves across
the southern waters. Kodiak Island may experience a prolonged
period of snow Monday night through late Tuesday evening as the
frontal occlusion sets up along the western waters. Added blowing
snow conditions during this time as strong gusty winds persist out
of the east to northeast direction and snow amounts up to five
inches. Snow could change over to rain Tuesday afternoon for
Kodiak Island; however, there is still high uncertainty with this
event.

&&

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

Quiet conditions are expected over the next few days as an upper
ridge and subsequent surface high pressure builds over the
region. Areas of fog are possible Sunday morning. Clear skies will
also lead to cooler temperatures. As usual, interior portions of
the Kuskokwim Delta will be the coldest, with highs in the upper
single digits and lows in the minus 10s. Cloud cover will
gradually increase over Bristol Bay on Tuesday as a front
approaches from the south.

&&

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

Scattered rain/snow showers will continue across the Aleutians,
generally west of and including Unalaska through Tuesday along a
series of fronts. Gusty easterly winds are expected on the Pacific
side of the central Aleutians on Sunday. A second, stronger front
will track south of the Alaska Peninsula Monday afternoon into
Tuesday, likewise bringing gusty easterly winds to that region.

&&

.MARINE (Days 3 through 5)...

A low tracking north into the Gulf Tue will continue to bring
widespread gales along the northern Gulf Coast and south of the
AKPEN, with areas of storm force winds in Shelikof Strait and east
of Kodiak Island. Meanwhile, expect widespread small craft advisory
level conditions over the Bering Sea with broad easterly flow under
high pressure. The Gulf low will weaken Wed. Depending on the low
track, a barrier jet could develop and bring easterly gales Wed.
Winds will decrease and seas will subside Wed into Thu over the
Bering Sea.

&&

.LONG TERM FORECAST (Days 4 through 7)...

A weakening low in the Gulf will continue to bring precipitation
along the North Gulf Coast Wed, then gradually exit to the eastern
Gulf Thu. Farther north, expect persistent mostly dry weather,
though clouds streaming in from the Gulf should make for mostly cloudy
skies over Southcentral Wed and Thu. Thu into Sat, a
strengthening Arctic high will bring colder than normal conditions
and clear skies. Looking farther west, expect mostly dry, colder
than normal weather through Fri over the Southwest mainland. A
series of compact lows will track across the Aleutians, bringing
periods of unsettled weather. A strong low will move into the
western Bering Sat.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Storm Warning 130 172
	     Gale Warning 121 127 128 131 132 138 155 165 170 171 173 174
			          176 177
         Heavy Freezing Spray Warning 127 130 138 139 150 160 165 180
FIRE WEATHER...NONE.

&&

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