Gale Warning 231, NWS Anchorage, AK

863 
FZAK52 PAFC 021232
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
332 AM AKST Fri Mar 2 2018

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.

PKZ199-030115-
332 AM AKST Fri Mar 2 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 994 mb North Pacific low will move to 330 nm southeast of Dutch
Harbor this afternoon then it will move into the southwestern 
Gulf Sat morning. A front will move over the Western Aleutians 
this afternoon then it will move over the Central Aleutians Sun 
morning.

$$

PKZ150-030115-
South of the AK Peninsula Sitkinak to Castle Cape-
332 AM AKST Fri Mar 2 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...SE wind 20 kt becoming E 30 kt in the afternoon. 
Seas 9 ft.
.TONIGHT...E wind 30 kt. Seas 13 ft. Snow and rain.
.SAT...N wind 30 kt. Seas 13 ft.
.SAT NIGHT...NW wind 20 kt. Seas 9 ft.
.SUN THROUGH MON...W wind 20 kt. Seas 6 ft.
.TUE...W wind 25 kt. Seas 8 ft.

$$

PKZ155-030115-
South of the AK Peninsula Castle Cape to Cape Sarichef-
332 AM AKST Fri Mar 2 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...NE wind 30 kt becoming N 40 kt in the afternoon. From the
Shumagin Islands E, E wind 30 kt. Seas 12 ft. Snow and rain.
.TONIGHT...N wind 40 kt except NE 30 kt from the Shumagin Islands
E. Seas 14 ft.
.SAT...N wind 30 kt. Seas 13 ft.
.SAT NIGHT...NW wind 20 kt. Seas 9 ft.
.SUN THROUGH MON...W wind 20 kt. Seas 9 ft.
.TUE...W wind 25 kt. Seas 8 ft.

$$

PKZ160-030115-
Bristol Bay-
332 AM AKST Fri Mar 2 2018

.TODAY...E wind 15 kt. Seas in ice free waters 3 ft. Snow.
.TONIGHT...NE wind 15 kt. Seas in ice free waters 3 ft. Snow.
.SAT...N wind 20 kt. Seas in ice free waters 4 ft.
.SAT NIGHT...W wind 10 kt. Seas in ice free waters 4 ft.
.SUN...SW wind 15 kt. Seas in ice free waters 6 ft.
.MON THROUGH TUE...SW wind 20 kt. Seas in ice free waters 7 ft.

$$

PKZ165-030115-
Port Heiden to Cape Sarichef-
332 AM AKST Fri Mar 2 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 20 kt increasing to 30 kt in the afternoon. 
Seas 8 ft. Snow.
.TONIGHT...N wind 30 kt. Seas 9 ft.
.SAT...NW wind 20 kt. Seas 7 ft.
.SAT NIGHT...SW wind 20 kt. Seas 6 ft.
.SUN...SW wind 20 kt. Seas 9 ft.
.MON THROUGH TUE...SW wind 25 kt. Seas 12 ft.

$$

PKZ170-030115-
Cape Sarichef to Nikolski Bering Side-
332 AM AKST Fri Mar 2 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...NW wind 25 kt. Seas 7 ft.
.TONIGHT...NW wind 25 kt diminishing to 15 kt after midnight. 
Seas 8 ft.
.SAT...W wind 15 kt becoming SW 25 kt in the afternoon. Seas 7 ft.
.SAT NIGHT...S wind 25 kt. Seas 9 ft.
.SUN THROUGH TUE...SW wind 25 kt. Seas 13 ft.

$$

PKZ171-030115-
Unalaska Bay-
332 AM AKST Fri Mar 2 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 15 kt increasing to 25 kt in the afternoon. 
Seas 7 ft.
.TONIGHT...NW wind 25 kt diminishing to 15 kt after midnight. 
Seas 7 ft.
.SAT...W wind 10 kt. Seas 2 ft.
.SAT NIGHT...SW wind 15 kt. Seas 2 ft.
.SUN THROUGH TUE...SW wind 15 kt. Seas 2 ft.

$$

PKZ172-030115-
Cape Sarichef to Nikolski Pacific Side-
332 AM AKST Fri Mar 2 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW wind 35 kt. Seas 11 ft.
.TONIGHT...NW wind 35 kt. Seas 11 ft.
.SAT...NW wind 20 kt. Seas 8 ft.
.SAT NIGHT...SW wind 20 kt. Seas 8 ft.
.SUN...SW wind 20 kt. Seas 11 ft.
.MON THROUGH TUE...SW wind 25 kt. Seas 10 ft.

$$

PKZ173-030115-
Nikloski to Seguam Island Bering Side-
332 AM AKST Fri Mar 2 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...W wind 20 kt. Seas 8 ft.
.TONIGHT...W wind 20 kt. Seas 8 ft.
.SAT...S wind 30 kt. Seas 9 ft. Rain.
.SAT NIGHT...SW wind 25 kt. Seas 10 ft.
.SUN THROUGH TUE...SW wind 25 kt. Seas 12 ft.

$$

PKZ174-030115-
Nikolski to Seguam Island Pacific Side-
332 AM AKST Fri Mar 2 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...NW wind 25 kt. Seas 9 ft.
.TONIGHT...W wind 25 kt. Seas 9 ft.
.SAT...SW wind 25 kt. Seas 9 ft.
.SAT NIGHT...SW wind 25 kt. Seas 13 ft.
.SUN...SW wind 25 kt. Seas 14 ft.
.MON...SW wind 20 kt. Seas 12 ft.
.TUE...SW wind 25 kt. Seas 10 ft.

$$

PKZ175-030115-
Seguam Island to Adak Bering Side-
332 AM AKST Fri Mar 2 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...W wind 20 kt. Seas 9 ft.
.TONIGHT...S wind 30 kt. Seas 9 ft. Rain.
.SAT...S wind 30 kt. Seas 11 ft. Rain.
.SAT NIGHT...SW wind 25 kt. Seas 10 ft.
.SUN...SW wind 25 kt. Seas 11 ft.
.MON THROUGH TUE...SW wind 30 kt. Seas 13 ft.

$$

PKZ176-030115-
Seguam Island to Adak Pacific Side-
332 AM AKST Fri Mar 2 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...W wind 20 kt. Seas 11 ft.
.TONIGHT...S wind 30 kt. Seas 10 ft.
.SAT...S wind 30 kt. Seas 16 ft. Rain.
.SAT NIGHT...SW wind 30 kt. Seas 16 ft.
.SUN...SW wind 25 kt. Seas 18 ft.
.MON THROUGH TUE...SW wind 25 kt. Seas 13 ft.

$$

PKZ177-030115-
Adak to Kiska-
332 AM AKST Fri Mar 2 2018

...GALE WARNING TONIGHT AND SATURDAY...

.TODAY...SW wind 20 kt becoming S 30 kt in the afternoon. 
Seas 13 ft.
.TONIGHT...S wind 40 kt. Seas 17 ft. Snow and rain.
.SAT...S wind 35 kt. Seas 18 ft.
.SAT NIGHT...SW wind 30 kt. Seas 19 ft.
.SUN THROUGH MON...SW wind 30 kt. Seas 19 ft.
.TUE...SW wind 30 kt. Seas 15 ft.

$$

PKZ178-030115-
Kiska to Attu-
332 AM AKST Fri Mar 2 2018

...GALE WARNING THROUGH SATURDAY...

.TODAY...S wind 30 kt increasing to 45 kt in the afternoon. Seas
11 ft building to 16 ft in the afternoon. Snow.
.TONIGHT...S wind 45 kt diminishing to 30 kt after midnight. Seas
19 ft. Snow.
.SAT...S wind 35 kt. Seas 24 ft. Snow.
.SAT NIGHT...SW wind 40 kt. Seas 29 ft.
.SUN THROUGH MON...SW wind 40 kt. Seas 25 ft.
.TUE...SW wind 30 kt. Seas 18 ft.

$$

PKZ179-030115-
Pribilof Islands Near Shore Waters-
332 AM AKST Fri Mar 2 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...SW wind 15 kt. Seas 10 ft.
.TONIGHT...W wind 15 kt. Seas 8 ft.
.SAT...S wind 25 kt. Seas 8 ft.
.SAT NIGHT...S wind 25 kt. Seas 11 ft.
.SUN...SW wind 25 kt. Seas 14 ft.
.MON...SW wind 30 kt. Seas 17 ft.
.TUE...SW wind 25 kt. Seas 17 ft.

$$

PKZ180-030115-
Kuskokwim Delta and Etolin Strait-
332 AM AKST Fri Mar 2 2018

.TODAY...NW wind 15 kt. Seas 6 ft.
.TONIGHT...NW wind 20 kt. Seas 6 ft.
.SAT...NW wind 20 kt. Seas 5 ft.
.SAT NIGHT...S wind 25 kt. Seas 5 ft.
.SUN THROUGH MON...SW wind 25 kt. Seas 9 ft.
.TUE...SW wind 20 kt. Seas 11 ft.

$$

PKZ181-030115-
North and West of Nunivak Island-
332 AM AKST Fri Mar 2 2018

.TODAY...S wind 15 kt. Seas in ice free waters 7 ft.
.TONIGHT...SW wind 15 kt. Seas in ice free waters 6 ft.
.SAT...Variable wind 10 kt becoming S 20 kt in the afternoon. 
Seas in ice free waters 5 ft.
.SAT NIGHT...S wind 25 kt. Seas in ice free waters 7 ft.
.SUN...SW wind 20 kt. Seas in ice free waters 9 ft.
.MON...SW wind 25 kt. Seas in ice free waters 11 ft.
.TUE...SW wind 20 kt. Seas in ice free waters 11 ft.

$$

PKZ185-030115-
Saint Matthew Island Waters-
332 AM AKST Fri Mar 2 2018

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...SW wind 25 kt. Seas 14 ft.
.TONIGHT...W wind 15 kt E of Saint Matthew Island...S 25 kt W of
Saint Matthew Island. Seas 12 ft.
.SAT...E of Saint Matthew Island, S wind 20 kt increasing to 30 kt
in the afternoon. W of Saint Matthew Island, S wind 30 kt. Seas
11 ft. Snow.
.SAT NIGHT...S wind 25 kt. Seas 13 ft.
.SUN THROUGH MON...SW wind 30 kt. Seas 21 ft.
.TUE...SW wind 25 kt. Seas 21 ft.

$$

996 
FZAK52 PAFC 030018
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
318 PM AKST Fri Mar 2 2018

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.

PKZ199-031315-
318 PM AKST Fri Mar 2 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 996 mb North Pacific low 270 nm south of Sand Point will move 
to 515 nm southeast of Sand Point at 1000 mb by Sat afternoon. A 
front moves over the Central Aleutians through Sun afternoon.

$$

PKZ150-031315-
South of the AK Peninsula Sitkinak to Castle Cape-
318 PM AKST Fri Mar 2 2018

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

.TONIGHT...E wind 30 kt. Seas 14 ft. Snow and rain.
.SAT...N wind 30 kt. Seas 13 ft.
.SAT NIGHT...N wind 20 kt. Seas 9 ft.
.SUN...W wind 15 kt. Seas 5 ft.
.SUN NIGHT...W wind 20 kt. Seas 5 ft.
.MON...NW wind 20 kt. Seas 6 ft.
.TUE...W wind 25 kt. Seas 8 ft.
.WED...W wind 20 kt. Seas 8 ft.

$$

PKZ155-031315-
South of the AK Peninsula Castle Cape to Cape Sarichef-
318 PM AKST Fri Mar 2 2018

...GALE WARNING TONIGHT...

.TONIGHT...N wind 40 kt except NE 30 kt from the Shumagin Islands
E. Seas 14 ft. Rain.
.SAT...N wind 30 kt. Seas 14 ft.
.SAT NIGHT...NW wind 20 kt in the evening becoming variable 10 kt.
Seas 9 ft.
.SUN AND SUN NIGHT...W wind 20 kt. Seas 7 ft.
.MON...W wind 20 kt. Seas 8 ft.
.TUE THROUGH WED...W wind 25 kt. Seas 8 ft.

$$

PKZ160-031315-
Bristol Bay-
318 PM AKST Fri Mar 2 2018

.TONIGHT...NE wind 15 kt. Seas in ice free waters 3 ft. Snow.
.SAT...N wind 20 kt. Seas in ice free waters 4 ft.
.SAT NIGHT...NW wind 10 kt in the evening becoming variable less
than 10 kt. Seas in ice free waters 4 ft.
.SUN...S wind 15 kt. Seas in ice free waters 3 ft.
.SUN NIGHT...SW wind 20 kt. Seas in ice free waters 6 ft.
.MON THROUGH WED...SW wind 20 kt. Seas in ice free waters 7 ft.

$$

PKZ165-031315-
Port Heiden to Cape Sarichef-
318 PM AKST Fri Mar 2 2018

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 30 kt except NE 20 kt from Port Moller E. Seas 8 ft.
.SAT...NW wind 15 kt. Seas 7 ft.
.SAT NIGHT...S wind 20 kt except variable 10 kt from Port Moller
E. Seas 6 ft.
.SUN...S wind 20 kt. Seas 9 ft.
.SUN NIGHT...W wind 20 kt. Seas 9 ft.
.MON...SW wind 25 kt. Seas 9 ft.
.TUE...SW wind 25 kt. Seas 13 ft.
.WED...W wind 20 kt. Seas 13 ft.

$$

PKZ170-031315-
Cape Sarichef to Nikolski Bering Side-
318 PM AKST Fri Mar 2 2018

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

.TONIGHT...NW wind 15 kt. Seas 8 ft.
.SAT...W wind 15 kt becoming SW 25 kt by late afternoon. Seas 7 ft.
.SAT NIGHT...S wind 25 kt. Seas 9 ft. Rain and snow.
.SUN...SW wind 25 kt. Seas 10 ft.
.SUN NIGHT...W wind 15 kt. Seas 9 ft.
.MON...SW wind 25 kt. Seas 11 ft.
.TUE THROUGH WED...SW wind 25 kt. Seas 14 ft.

$$

PKZ171-031315-
Unalaska Bay-
318 PM AKST Fri Mar 2 2018

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW wind 25 kt diminishing to 15 kt by midnight. Seas 7 
ft.
.SAT...W wind 10 kt. Seas 2 ft.
.SAT NIGHT...SW wind 10 kt becoming S after midnight. Seas 2 ft.
.SUN...SW wind 15 kt. Seas 2 ft.
.SUN NIGHT...W wind 15 kt. Seas 2 ft.
.MON THROUGH WED...W wind 15 kt. Seas 2 ft.

$$

PKZ172-031315-
Cape Sarichef to Nikolski Pacific Side-
318 PM AKST Fri Mar 2 2018

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 35 kt decreasing to 25 kt after midnight. W of
Dutch Harbor...NW wind 25 kt decreasing to 15 kt by midnight. Seas 
11 ft.
.SAT...NW wind 15 kt. Seas 8 ft.
.SAT NIGHT...SW wind 20 kt. Seas 7 ft.
.SUN...SW wind 20 kt. Seas 11 ft.
.SUN NIGHT...W wind 20 kt. Seas 11 ft.
.MON THROUGH WED...W wind 25 kt. Seas 9 ft.

$$

PKZ173-031315-
Nikloski to Seguam Island Bering Side-
318 PM AKST Fri Mar 2 2018

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

.TONIGHT...W wind 20 kt. Seas 8 ft.
.SAT...S wind 30 kt. Seas 9 ft. Rain.
.SAT NIGHT...S wind 25 kt. Seas 10 ft. Rain.
.SUN...SW wind 25 kt. Seas 9 ft.
.SUN NIGHT...W wind 15 kt. Seas 9 ft.
.MON THROUGH WED...W wind 25 kt. Seas 13 ft.

$$

PKZ174-031315-
Nikolski to Seguam Island Pacific Side-
318 PM AKST Fri Mar 2 2018

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

.TONIGHT...W wind 25 kt. Seas 9 ft.
.SAT...SW wind 25 kt. Seas 9 ft.
.SAT NIGHT...SW wind 25 kt. Seas 13 ft.
.SUN...SW wind 25 kt. Seas 13 ft.
.SUN NIGHT...W wind 15 kt. Seas 13 ft.
.MON...SW wind 20 kt. Seas 12 ft.
.TUE THROUGH WED...W wind 25 kt. Seas 10 ft.

$$

PKZ175-031315-
Seguam Island to Adak Bering Side-
318 PM AKST Fri Mar 2 2018

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

.TONIGHT...SW wind 15 kt becoming S 30 kt by midnight. Seas 9 ft. 
Rain.
.SAT...S wind 30 kt. Seas 11 ft. Rain with snow.
.SAT NIGHT...SW wind 25 kt decreasing to 15 kt after midnight. Seas 
10 ft.
.SUN AND SUN NIGHT...SW wind 20 kt. Seas 10 ft.
.MON THROUGH WED...W wind 30 kt. Seas 12 ft.

$$

PKZ176-031315-
Seguam Island to Adak Pacific Side-
318 PM AKST Fri Mar 2 2018

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

.TONIGHT...SW wind 15 kt becoming S 30 kt by midnight. Seas 10 ft.
.SAT...S wind 30 kt. Seas 16 ft. Rain.
.SAT NIGHT...SW wind 30 kt. Seas 16 ft. Rain.
.SUN...W wind 25 kt. Seas 15 ft.
.SUN NIGHT...SW wind 15 kt. Seas 15 ft.
.MON THROUGH WED...W wind 25 kt. Seas 12 ft.

$$

PKZ177-031315-
Adak to Kiska-
318 PM AKST Fri Mar 2 2018

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...S wind 40 kt. Seas 16 ft. Rain and snow.
.SAT...S wind 35 kt decreasing to 25 kt in the afternoon. Seas 18 
ft. Rain.
.SAT NIGHT...SW wind 25 kt. Seas 18 ft.
.SUN...SW wind 25 kt. Seas 18 ft.
.SUN NIGHT...SW wind 30 kt. Seas 16 ft.
.MON...SW wind 35 kt. Seas 18 ft.
.TUE THROUGH WED...W wind 30 kt. Seas 14 ft.

$$

PKZ178-031315-
Kiska to Attu-
318 PM AKST Fri Mar 2 2018

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...S wind 45 kt diminishing to 30 kt after midnight. Seas
19 ft. Snow and rain showers.
.SAT...S wind 35 kt. Seas 24 ft.
.SAT NIGHT...SW wind 40 kt. Seas 27 ft. Snow showers.
.SUN...SW wind 35 kt. Seas 24 ft.
.SUN NIGHT...S wind 45 kt. Seas 25 ft.
.MON...SW wind 40 kt. Seas 27 ft.
.TUE...SW wind 30 kt. Seas 18 ft.
.WED...W wind 30 kt. Seas 14 ft.

$$

PKZ179-031315-
Pribilof Islands Near Shore Waters-
318 PM AKST Fri Mar 2 2018

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

.TONIGHT...W wind 15 kt. Seas 8 ft.
.SAT...S wind 15 kt increasing to 25 kt in the afternoon. Seas 8 ft.
Rain.
.SAT NIGHT...S wind 25 kt. Seas 11 ft. Rain.
.SUN...SW wind 20 kt. Seas 11 ft.
.SUN NIGHT...W wind 25 kt. Seas 13 ft.
.MON...SW wind 30 kt. Seas 17 ft.
.TUE THROUGH WED...W wind 25 kt. Seas 16 ft.

$$

PKZ180-031315-
Kuskokwim Delta and Etolin Strait-
318 PM AKST Fri Mar 2 2018

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...NW wind 20 kt. Seas 6 ft.
.SAT...NW wind 20 kt. Seas 5 ft.
.SAT NIGHT...S wind 25 kt. Seas 5 ft. 
.SUN...S wind 25 kt. Seas 8 ft.
.SUN NIGHT...W wind 20 kt. Seas 8 ft.
.MON...SW wind 25 kt. Seas 10 ft.
.TUE THROUGH WED...SW wind 20 kt. Seas 11 ft.

$$

PKZ181-031315-
North and West of Nunivak Island-
318 PM AKST Fri Mar 2 2018

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...SW wind 15 kt. Seas in ice free waters 6 ft.
.SAT...Variable wind 10 kt becoming S 20 kt in the afternoon. Seas
in ice free waters 6 ft.
.SAT NIGHT...S wind 25 kt. Seas in ice free waters 8 ft. Snow.
.SUN AND SUN NIGHT...SW wind 25 kt. Seas in ice free waters 9 ft.
.MON...SW wind 25 kt. Seas in ice free waters 11 ft.
.TUE...SW wind 20 kt. Seas in ice free waters 11 ft.
.WED...SW wind 15 kt. Seas in ice free waters 8 ft.

$$

PKZ185-031315-
Saint Matthew Island Waters-
318 PM AKST Fri Mar 2 2018

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

.TONIGHT...W wind 15 kt E of Saint Matthew Island...S 25 kt W of
Saint Matthew Island. Seas 12 ft.
.SAT...E of Saint Matthew Island, S wind 20 kt increasing to 30 kt
in the afternoon. W of Saint Matthew Island, S wind 30 kt. Seas
11 ft. Snow and rain showers.
.SAT NIGHT...S wind 25 kt. Seas 13 ft.
.SUN AND SUN NIGHT...SW wind 30 kt. Seas 19 ft.
.MON...SW wind 35 kt. Seas 21 ft.
.TUE...SW wind 25 kt. Seas 21 ft.
.WED...W wind 20 kt. Seas 15 ft.

$$

724 
FZAK52 PAFC 031213
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
313 AM AKST Sat Mar 3 2018

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.

PKZ199-040115-
313 AM AKST Sat Mar 3 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 993 mb low 330 nm southeast of Sand Point will move into the 
southern Gulf this afternoon. A front over the western Aleutians 
will dissipate over the central Aleutians tonight. A second front 
will move over the western Aleutians Sun night then it will move 
over the central Aleutians Tue morning. 

$$

PKZ150-040115-
South of the AK Peninsula Sitkinak to Castle Cape-
313 AM AKST Sat Mar 3 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt. Seas 14 ft.
.TONIGHT...N wind 25 kt diminishing to 15 kt after midnight. Seas
10 ft.
.SUN...NW wind 15 kt. Seas 5 ft.
.SUN NIGHT...W wind 20 kt. Seas 5 ft.
.MON...NW wind 20 kt. Seas 5 ft.
.TUE...W wind 25 kt. Seas 8 ft.
.WED...W wind 20 kt. Seas 8 ft.

$$

PKZ155-040115-
South of the AK Peninsula Castle Cape to Cape Sarichef-
313 AM AKST Sat Mar 3 2018

...GALE WARNING TODAY...

.TODAY...N wind 35 kt diminishing to 25 kt in the afternoon. Seas 15
ft.
.TONIGHT...NW wind 20 kt in the evening becoming variable 10 kt.
Seas 9 ft.
.SUN...SW wind 20 kt except SW 15 kt from the Shumagin Islands E.
Seas 6 ft.
.SUN NIGHT...W wind 20 kt. Seas 8 ft.
.MON THROUGH WED...W wind 25 kt. Seas 9 ft.

$$

PKZ160-040115-
Bristol Bay-
313 AM AKST Sat Mar 3 2018

.TODAY...N wind 20 kt diminishing to 10 kt in the afternoon. Seas in
ice free waters 4 ft.
.TONIGHT...NW wind 10 kt in the evening becoming variable less
than 10 kt. Seas in ice free waters 4 ft.
.SUN...S wind 10 kt increasing to 15 kt in the afternoon. Seas in
ice free waters 3 ft.
.SUN NIGHT...SW wind 20 kt. Seas in ice free waters 6 ft.
.MON THROUGH WED...W wind 20 kt. Seas in ice free waters 7 ft.

$$

PKZ165-040115-
Port Heiden to Cape Sarichef-
313 AM AKST Sat Mar 3 2018

...SMALL CRAFT ADVISORY SUNDAY...

.TODAY...N wind 20 kt diminishing to 10 kt in the afternoon. Seas 7 
ft.
.TONIGHT...S wind 20 kt except variable 10 kt from Port Moller E.
Seas 6 ft.
.SUN...S wind 25 kt except S 20 kt from Port Moller E. Seas 9 ft.
.SUN NIGHT...W wind 20 kt. Seas 9 ft.
.MON...SW wind 25 kt. Seas 9 ft.
.TUE THROUGH WED...W wind 25 kt. Seas 13 ft.

$$

PKZ170-040115-
Cape Sarichef to Nikolski Bering Side-
313 AM AKST Sat Mar 3 2018

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

.TODAY...SW wind 20 kt. Seas 7 ft.
.TONIGHT...S wind 25 kt. Seas 10 ft.
.SUN...S wind 25 kt. Seas 10 ft.
.SUN NIGHT...W wind 15 kt. Seas 9 ft.
.MON...SW wind 30 kt. Seas 13 ft.
.TUE...SW wind 25 kt. Seas 15 ft.
.WED...SW wind 30 kt. Seas 13 ft.

$$

PKZ171-040115-
Unalaska Bay-
313 AM AKST Sat Mar 3 2018

.TODAY...NW wind 15 kt in the morning becoming variable less than
10 kt. Seas 5 ft subsiding to 2 ft in the afternoon.
.TONIGHT...S wind 10 kt increasing to 15 kt after midnight. Seas
2 ft.
.SUN...SW wind 20 kt. Seas 2 ft.
.SUN NIGHT...W wind 15 kt. Seas 3 ft.
.MON THROUGH WED...SW wind 20 kt. Seas 3 ft.

$$

PKZ172-040115-
Cape Sarichef to Nikolski Pacific Side-
313 AM AKST Sat Mar 3 2018

...SMALL CRAFT ADVISORY TODAY AND SUNDAY...

.TODAY...NW wind 25 kt becoming W 15 kt in the afternoon. Seas 9
ft.
.TONIGHT...SW wind 20 kt. Seas 7 ft.
.SUN...SW wind 25 kt. Seas 11 ft.
.SUN NIGHT...W wind 20 kt. Seas 11 ft.
.MON THROUGH WED...W wind 25 kt. Seas 9 ft.

$$

PKZ173-040115-
Nikloski to Seguam Island Bering Side-
313 AM AKST Sat Mar 3 2018

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...S wind 20 kt in the morning increasing to 30 kt. Seas 9 ft.
Rain.
.TONIGHT...S wind 25 kt. Seas 10 ft. Rain.
.SUN...SW wind 25 kt becoming W 15 kt in the afternoon. Seas 9 ft.
.SUN NIGHT...W wind 15 kt. Seas 9 ft.
.MON...S wind 30 kt. Seas 15 ft.
.TUE...SW wind 25 kt. Seas 15 ft.
.WED...SW wind 30 kt. Seas 12 ft.

$$

PKZ174-040115-
Nikolski to Seguam Island Pacific Side-
313 AM AKST Sat Mar 3 2018

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...SW wind 25 kt. Seas 9 ft.
.TONIGHT...SW wind 25 kt. Seas 13 ft.
.SUN...SW wind 25 kt. Seas 14 ft.
.SUN NIGHT...W wind 15 kt. Seas 12 ft.
.MON THROUGH TUE...SW wind 25 kt. Seas 11 ft.
.WED...SW wind 30 kt. Seas 10 ft.

$$

PKZ175-040115-
Seguam Island to Adak Bering Side-
313 AM AKST Sat Mar 3 2018

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...S wind 30 kt. Seas 11 ft. Rain.
.TONIGHT...SW wind 25 kt. Seas 9 ft. Rain.
.SUN...W wind 20 kt. Seas 9 ft.
.SUN NIGHT...SW wind 20 kt. Seas 10 ft.
.MON THROUGH TUE...SW wind 30 kt. Seas 16 ft.
.WED...W wind 30 kt. Seas 12 ft.

$$

PKZ176-040115-
Seguam Island to Adak Pacific Side-
313 AM AKST Sat Mar 3 2018

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...S wind 30 kt. Seas 15 ft. Rain.
.TONIGHT...S wind 25 kt. Seas 16 ft. Rain.
.SUN...W wind 25 kt in the morning becoming variable 10 kt. Seas
15 ft.
.SUN NIGHT...SW wind 15 kt. Seas 14 ft.
.MON...SW wind 30 kt. Seas 15 ft.
.TUE...SW wind 25 kt. Seas 15 ft.
.WED...SW wind 30 kt. Seas 11 ft.

$$

PKZ177-040115-
Adak to Kiska-
313 AM AKST Sat Mar 3 2018

...GALE WARNING TODAY...

.TODAY...S wind 35 kt diminishing to 25 kt in the afternoon. Seas 17
ft. Rain.
.TONIGHT...SW wind 25 kt. Seas 18 ft.
.SUN...SW wind 25 kt. Seas 18 ft.
.SUN NIGHT...S wind 35 kt. Seas 16 ft.
.MON...SW wind 35 kt. Seas 20 ft.
.TUE...SW wind 30 kt. Seas 18 ft.
.WED...W wind 30 kt. Seas 14 ft.

$$

PKZ178-040115-
Kiska to Attu-
313 AM AKST Sat Mar 3 2018

...GALE WARNING THROUGH SUNDAY...

.TODAY...S wind 35 kt. Seas 23 ft.
.TONIGHT...SW wind 35 kt. Seas 27 ft.
.SUN...SW wind 35 kt. Seas 24 ft.
.SUN NIGHT...S wind 45 kt. Seas 25 ft.
.MON...SW wind 40 kt. Seas 29 ft.
.TUE THROUGH WED...W wind 30 kt. Seas 18 ft.

$$

PKZ179-040115-
Pribilof Islands Near Shore Waters-
313 AM AKST Sat Mar 3 2018

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...S wind 10 kt increasing to 25 kt in the afternoon. Seas
8 ft. Snow and rain.
.TONIGHT...S wind 25 kt. Seas 11 ft. Rain.
.SUN...SW wind 20 kt. Seas 11 ft. Rain.
.SUN NIGHT...W wind 20 kt. Seas 12 ft.
.MON...SW wind 30 kt. Seas 16 ft.
.TUE...SW wind 25 kt. Seas 17 ft.
.WED...W wind 30 kt. Seas 14 ft.

$$

PKZ180-040115-
Kuskokwim Delta and Etolin Strait-
313 AM AKST Sat Mar 3 2018

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

.TODAY...NW wind 20 kt, except variable 10 kt N of Cape Newenham. 
Seas 5 ft.
.TONIGHT...S wind 25 kt. Seas 5 ft. Snow.
.SUN...S wind 25 kt. Seas 8 ft. Snow with rain.
.SUN NIGHT...W wind 20 kt. Seas 8 ft.
.MON THROUGH TUE...SW wind 25 kt. Seas 11 ft.
.WED...SW wind 20 kt. Seas 10 ft.

$$

PKZ181-040115-
North and West of Nunivak Island-
313 AM AKST Sat Mar 3 2018

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

.TODAY...S wind 20 kt. Seas in ice free waters 5 ft.
.TONIGHT...S wind 30 kt. Seas in ice free waters 8 ft. Snow.
.SUN...S wind 25 kt. Seas in ice free waters 8 ft. Snow.
.SUN NIGHT...SW wind 20 kt. Seas in ice free waters 9 ft.
.MON...S wind 30 kt. Seas in ice free waters 10 ft.
.TUE THROUGH WED...SW wind 20 kt. Seas in ice free waters 10 ft.

$$

PKZ185-040115-
Saint Matthew Island Waters-
313 AM AKST Sat Mar 3 2018

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...E of Saint Matthew Island, S wind 20 kt increasing to 30
kt in the afternoon. W of Saint Matthew Island, S wind 30 kt. Seas 
12 ft. Snow and rain.
.TONIGHT...S wind 30 kt. Seas 13 ft.
.SUN...S wind 20 kt E of Saint Matthew Island...S 30 kt W of Saint
Matthew Island. Seas 18 ft.
.SUN NIGHT...SW wind 30 kt. Seas 19 ft.
.MON THROUGH TUE...SW wind 30 kt. Seas 21 ft.
.WED...SW wind 25 kt. Seas 15 ft.

$$

993 
FZAK52 PAFC 040019
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
319 PM AKST Sat Mar 3 2018

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.

PKZ199-041315-
319 PM AKST Sat Mar 3 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A front over the central Aleutians will reach the southwest coast
then dissipate Sun afternoon. A second stronger storm force front
will move over the western Aleutians Sun night then it will weaken
and move over the central Aleutians Tue morning. 

$$

PKZ150-041315-
South of the AK Peninsula Sitkinak to Castle Cape-
319 PM AKST Sat Mar 3 2018

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 25 kt diminishing to 15 kt after midnight. Seas
10 ft.
.SUN...NW wind 10 kt. Seas 5 ft.
.SUN NIGHT...W wind 15 kt. Seas 5 ft.
.MON AND MON NIGHT...W wind 20 kt. Seas 6 ft.
.TUE...W wind 25 kt. Seas 8 ft.
.WED...W wind 20 kt. Seas 8 ft.
.THU...W wind 30 kt. Seas 8 ft.

$$

PKZ155-041315-
South of the AK Peninsula Castle Cape to Cape Sarichef-
319 PM AKST Sat Mar 3 2018

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

.TONIGHT...NW wind 20 kt in the evening becoming variable 10 kt.
Seas 9 ft.
.SUN...SW wind 20 kt except SW 10 kt from the Shumagin Islands E. 
Seas 6 ft.
.SUN NIGHT...SW wind 20 kt. Seas 8 ft.
.MON...NW wind 15 kt. Seas 8 ft.
.MON NIGHT...SW wind 30 kt. Seas 8 ft.
.TUE...W wind 30 kt. Seas 9 ft.
.WED...W wind 25 kt. Seas 9 ft.
.THU...W wind 30 kt. Seas 9 ft.

$$

PKZ160-041315-
Bristol Bay-
319 PM AKST Sat Mar 3 2018

.TONIGHT...NW wind 10 kt in the evening becoming variable less
than 10 kt. Seas in ice free waters 4 ft.
.SUN...S wind 10 kt increasing to 15 kt in the afternoon. Seas in
ice free waters 3 ft.
.SUN NIGHT...S wind 15 kt becoming W after midnight. Seas in ice
free waters 6 ft. Snow and rain.
.MON...W wind 20 kt. Seas in ice free waters 6 ft.
.MON NIGHT...S wind 30 kt. Seas in ice free waters 5 ft.
.TUE...SW wind 30 kt. Seas in ice free waters 8 ft.
.WED...W wind 20 kt. Seas in ice free waters 8 ft.
.THU...W wind 25 kt. Seas in ice free waters 8 ft.

$$

PKZ165-041315-
Port Heiden to Cape Sarichef-
319 PM AKST Sat Mar 3 2018

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

.TONIGHT...S wind 20 kt except variable 10 kt from Port Moller E.
Seas 6 ft.
.SUN...S wind 25 kt except S 15 kt from Port Moller E. Seas 9 ft. 
Rain.
.SUN NIGHT...NW wind 15 kt. Seas 8 ft.
.MON...W wind 15 kt. Seas 8 ft.
.MON NIGHT...S wind 30 kt. Seas 10 ft.
.TUE...SW wind 30 kt. Seas 14 ft.
.WED...W wind 25 kt. Seas 13 ft.
.THU...W wind 30 kt. Seas 14 ft.

$$

PKZ170-041315-
Cape Sarichef to Nikolski Bering Side-
319 PM AKST Sat Mar 3 2018

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

.TONIGHT...S wind 25 kt. Seas 10 ft.
.SUN...S wind 25 kt becoming W 15 kt in the afternoon. Seas 10 ft. 
Rain.
.SUN NIGHT...W wind 15 kt. Seas 8 ft.
.MON...S wind 25 kt. Seas 10 ft.
.MON NIGHT...SW wind 35 kt. Seas 13 ft.
.TUE...SW wind 30 kt. Seas 17 ft.
.WED THROUGH THU...W wind 30 kt. Seas 15 ft.

$$

PKZ171-041315-
Unalaska Bay-
319 PM AKST Sat Mar 3 2018

.TONIGHT...S wind 10 kt increasing to 15 kt after midnight. Seas
2 ft.
.SUN...SW wind 15 kt. Seas 2 ft. Rain.
.SUN NIGHT...W wind 15 kt diminishing to 10 kt after midnight.
Seas 3 ft.
.MON...S wind 15 kt. Seas 2 ft.
.MON NIGHT...SW wind 25 kt. Seas 4 ft.
.TUE...SW wind 25 kt. Seas 4 ft.
.WED...SW wind 20 kt. Seas 3 ft.
.THU...W wind 30 kt. Seas 5 ft.

$$

PKZ172-041315-
Cape Sarichef to Nikolski Pacific Side-
319 PM AKST Sat Mar 3 2018

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

.TONIGHT...SW wind 20 kt. Seas 7 ft.
.SUN...SW wind 20 kt. Seas 11 ft.
.SUN NIGHT...NW wind 10 kt. Seas 11 ft.
.MON...S wind 15 kt. Seas 9 ft.
.MON NIGHT...SW wind 30 kt. Seas 10 ft.
.TUE...SW wind 30 kt. Seas 10 ft.
.WED...W wind 25 kt. Seas 9 ft.
.THU...W wind 30 kt. Seas 11 ft.

$$

PKZ173-041315-
Nikloski to Seguam Island Bering Side-
319 PM AKST Sat Mar 3 2018

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

.TONIGHT...S wind 25 kt. Seas 10 ft. Rain.
.SUN...SW wind 25 kt becoming W 15 kt in the afternoon. Seas 9 ft.
.SUN NIGHT...W wind 15 kt. Seas 9 ft.
.MON...S wind 30 kt. Seas 9 ft.
.MON NIGHT...SW wind 35 kt. Seas 15 ft.
.TUE...SW wind 35 kt. Seas 17 ft.
.WED...SW wind 30 kt. Seas 12 ft.
.THU...W wind 30 kt. Seas 18 ft.

$$

PKZ174-041315-
Nikolski to Seguam Island Pacific Side-
319 PM AKST Sat Mar 3 2018

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

.TONIGHT...SW wind 25 kt. Seas 13 ft.
.SUN...SW wind 25 kt becoming W 15 kt by noon. Seas 14 ft.
.SUN NIGHT...NW wind 10 kt in the evening becoming variable 10 kt. 
Seas 13 ft.
.MON...S wind 25 kt. Seas 11 ft.
.MON NIGHT...SW wind 30 kt. Seas 11 ft.
.TUE THROUGH THU...W wind 30 kt. Seas 12 ft.

$$

PKZ175-041315-
Seguam Island to Adak Bering Side-
319 PM AKST Sat Mar 3 2018

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

.TONIGHT...S wind 25 kt becoming SW 15 kt by midnight. Seas 9 ft.
.SUN...W wind 15 kt. Seas 9 ft.
.SUN NIGHT...S wind 20 kt. Seas 10 ft.
.MON...S wind 30 kt. Seas 11 ft.
.MON NIGHT...SW wind 35 kt. Seas 16 ft.
.TUE...SW wind 35 kt. Seas 16 ft.
.WED...W wind 30 kt. Seas 12 ft.
.THU...W wind 30 kt. Seas 18 ft.

$$

PKZ176-041315-
Seguam Island to Adak Pacific Side-
319 PM AKST Sat Mar 3 2018

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

.TONIGHT...S wind 25 kt. Seas 16 ft. Rain.
.SUN...SW wind 25 kt in the morning becoming W 10 kt. Seas 15 ft.
.SUN NIGHT...Variable wind 10 kt becoming S 15 kt after midnight.
Seas 14 ft.
.MON AND MON NIGHT...SW wind 30 kt. Seas 13 ft.
.TUE...SW wind 30 kt. Seas 15 ft.
.WED THROUGH THU...W wind 30 kt. Seas 12 ft.

$$

PKZ177-041315-
Adak to Kiska-
319 PM AKST Sat Mar 3 2018

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

.TONIGHT...SW wind 25 kt. Seas 18 ft.
.SUN...SW wind 20 kt. Seas 18 ft.
.SUN NIGHT...SW wind 20 kt becoming S 30 kt after midnight. Seas 16 
ft.
.MON...SW wind 40 kt. Seas 20 ft.
.MON NIGHT...SW wind 35 kt. Seas 20 ft.
.TUE...SW wind 40 kt. Seas 18 ft.
.WED THROUGH THU...W wind 30 kt. Seas 15 ft.

$$

PKZ178-041315-
Kiska to Attu-
319 PM AKST Sat Mar 3 2018

...STORM WARNING SUNDAY NIGHT...

.TONIGHT...SW wind 35 kt. Seas 27 ft.
.SUN...SW wind 25 kt increasing to 35 kt in the afternoon. Seas 25 
ft.
.SUN NIGHT...S wind 50 kt. Seas 19 ft building to 25 ft after
midnight. Snow and rain.
.MON...SW wind 50 kt. Seas 30 ft.
.MON NIGHT...SW wind 40 kt. Seas 26 ft.
.TUE...SW wind 40 kt. Seas 21 ft.
.WED THROUGH THU...W wind 30 kt. Seas 16 ft.

$$

PKZ179-041315-
Pribilof Islands Near Shore Waters-
319 PM AKST Sat Mar 3 2018

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

.TONIGHT...S wind 25 kt becoming S 20 kt by midnight. Seas 11 ft. 
Rain.
.SUN...SW wind 20 kt. Seas 11 ft.
.SUN NIGHT...W wind 20 kt. Seas 12 ft.
.MON...S wind 35 kt. Seas 13 ft.
.MON NIGHT...SW wind 35 kt. Seas 17 ft.
.TUE...SW wind 30 kt. Seas 18 ft.
.WED THROUGH THU...W wind 30 kt. Seas 16 ft.

$$

PKZ180-041315-
Kuskokwim Delta and Etolin Strait-
319 PM AKST Sat Mar 3 2018

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

.TONIGHT...S wind 25 kt. Seas 5 ft.
.SUN...S wind 25 kt. Seas 8 ft. Snow and rain.
.SUN NIGHT...W wind 20 kt. Seas 8 ft.
.MON...SW wind 20 kt. Seas 7 ft.
.MON NIGHT...S wind 35 kt. Seas 10 ft.
.TUE...SW wind 30 kt. Seas 11 ft.
.WED...SW wind 20 kt. Seas 10 ft.
.THU...W wind 25 kt. Seas 11 ft.

$$

PKZ181-041315-
North and West of Nunivak Island-
319 PM AKST Sat Mar 3 2018

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

.TONIGHT...S wind 30 kt. Seas in ice free waters 8 ft. Snow.
.SUN...S wind 25 kt becoming SW 15 in the afternoon. Seas in ice 
free waters 8 ft.
.SUN NIGHT...SW wind 20 kt. Seas in ice free waters 9 ft.
.MON...SW wind 25 kt. Seas in ice free waters 9 ft.
.MON NIGHT...S wind 30 kt. Seas in ice free waters 11 ft.
.TUE...SW wind 30 kt. Seas in ice free waters 12 ft.
.WED...SW wind 20 kt. Seas in ice free waters 9 ft.
.THU...W wind 25 kt. Seas in ice free waters 9 ft.

$$

PKZ185-041315-
Saint Matthew Island Waters-
319 PM AKST Sat Mar 3 2018

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

.TONIGHT...S wind 30 kt. Seas 13 ft. Snow.
.SUN...SW wind 20 kt E of Saint Matthew Island...S 30 kt W of Saint 
Matthew Island. Seas 18 ft.
.SUN NIGHT...SW wind 25 kt. Seas 19 ft.
.MON AND MON NIGHT...SW wind 35 kt. Seas 19 ft.
.TUE...SW wind 35 kt. Seas 22 ft.
.WED...SW wind 25 kt. Seas 15 ft.
.THU...W wind 30 kt. Seas 15 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
418 AM AKST Thu Mar 1 2018

.ANALYSIS AND UPPER LEVELS...
The upper level pattern remains highly amplified this morning,
with a full latitude ridge extending over the west coast of Alaska
bounded by longwave troughs over the Bering Sea and western
Canada. This is keeping broad northerly flow focused over
Southcentral Alaska, with strong outflow winds being aided by a
140 kt jet streak diving down the back side of the Canadian
trough. Much calmer conditions prevail across the southwest
mainland beneath the ridge. Meanwhile, a strong front is
continuing its steady eastward progression across the Bering Sea,
bringing southerly gales and occasionally heavy rain to the
Pribilofs and Eastern Aleutians overnight.

&&

.MODEL DISCUSSION...
Guidance remains in good synoptic agreement into the weekend as
the ridge slides eastward across the mainland, bringing a gradual
end to the outflow wind regime over the course of the next 24
hours and keeping a progressive pattern going beyond the short
term. The most notable model difference occurs near the end of the
short term as the next trough moves across the state and brings
another chance for snow to Southcentral on Saturday. The 00Z NAM
is notably drier than the other guidance, and was treated as the
outlier for the morning package. Otherwise, continued to utilize
Hi-Res NAM guidance to handle the final few periods of the outflow
wind event.

&&

.AVIATION...
PANC...VFR conditions and northerly winds will prevail through the
TAF period. Winds should become less gusty through this morning as
the best upper level support moves off to the east.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
Strong gap winds along the North Gulf Coast and Prince William
Sound will continue to gradually diminish today as the upper level
jet exits to the southeast and an upper level ridge approaches
from the west. Winds will drop off more significantly tonight as
the ridge moves overhead of Southcentral. Winds blowing through
the Matanuska Valley will follow a similar trend.

Otherwise, expect another sunny day across the region with
temperatures below average for this time of year. Cirrus clouds
will move in tonight, but it doesn't look like enough clouds to
limit radiational cooling very much, so it will be another cold
night. A weak front will stall over Southwest Alaska on Friday
while a low moves up from the North Pacific toward the Alaska
Peninsula. Kodiak Island will remain on the northern periphery
of the low, so the best chance for precipitation will be the
south end of the island.

It looks favorable for a light snow event for Southcentral Friday
night into Saturday as an upper level short-wave marches eastward.
Vertical motion will come mostly from the upper levels, with very
little going on in the low levels. With a neutrally tilted trough
and an inland track of the strongest part of the wave, snow will
be most likely from Anchorage and the Mat-Su eastward to the
Copper River Basin. Unlike recent storms, best estimate for
accumulation at this point is an inch or two, with perhaps a
bit more on the west side of the Talkeetna Mountains. While some
snow may move in as early as Friday night, the most likely period
of snow will be Saturday as the trough cross through Southcentral.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA...
Ridging over Southwest Alaska will continue to track east today
and as the ridge axis moves east of the area late this morning,
warm southerly flow will be ushered in over the area helping to
raise temps. This evening the front over the Bering will push in
over southwest Alaska bringing snow to the Kuskokwim Delta. As it
pushes further inland, part of the front will stall in a corridor
from the Bristol Bay area through the Lower Kuskokwim Valley that
will produce showers through Friday and into early Saturday
morning. Then weak ridging will move in ahead of another front
that will make it to the Kuskokwim Delta Saturday night.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS...
The front that extends across the Pribilof Islands and eastern
Aleutians is tracking east and will make it over the mainland this
evening. Cold westerly flow with embedded snow showers will then
dominate the area until a new system moves in over the western
Aleutians Friday afternoon. This front will make it to the central
Aleutians Saturday morning and the eastern Bering Saturday evening.
It is also pulling up enough warm air to bring rain or a mix of
rain and snow to the islands as it passes.

&&

.LONG TERM FORECAST (Days 3 through 7)...
The operational run of the GFS continues to display good run to
run continuity. At the onset of the forecast period, the GFS
ensemble members are tightly clustered with the low near
Kamchatka, the high south of the Central Aleutians and a low south
of Prince William Sound. As the forecast period unfolds, the
ensemble members remain grouped for the dome of high pressure in
the North Pacific, but the consensus quickly unravels in the
Bering. Very confident in the progressive nature of the pattern.
The GFS continues to depict three distinct frontal passages
across the Bering this forecast period with the remnants of these
systems moving into Southwest Alaska. East Domain (Kodiak,
Anchorage and Valdez) sensible weather highlights include a batch
of wintry precipitation for Kodiak and the southern Kenai
Peninsula Saturday March 3rd that will move across the Gulf of
Alaska later Saturday and Sunday. Monday, a new batch of wintry
weather is anticipated to impact Kodiak with moisture working its
way up Cook Inlet later Monday impacting the Anchorage Metro Area
Tuesday and Wednesday. The third batch of wintry weather is
anticipated for Southcentral late Thursday. In a nutshell, the
Anchorage Bowl and the Mat-Su Valleys can expect more snow! Stay
tuned for more details.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Gales 127 128 155 165 170 172 178 180 181 414.
 Heavy Freezing Spray: 160.

&&

SYNOPSIS AND MODEL DISCUSSION...CB
SOUTHCENTRAL ALASKA...SB
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...DK
LONG TERM...PJS