Gale Warning 816, NWS Anchorage, AK

695 
FZAK52 PAFC 240039
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
339 PM AKST Sun Dec 23 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.

PKZ199-241315-
339 PM AKST Sun Dec 23 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 980 mb low 405 nm South of Adak moves to 130 nm South of 
Chignik at 984 mb Tue afternoon. Its strong front pushes over the 
Alaska Peninsula through Tue afternoon. A 972 mb low 670 nm South of 
Attu Mon afternoon moves to 485 nm South of Amchitka at 976 mb by Tue
afternoon.

$$

PKZ150-241315-
South of the AK Peninsula Sitkinak to Castle Cape-
339 PM AKST Sun Dec 23 2018

...GALE WARNING MONDAY NIGHT...

.TONIGHT...NW wind 20 kt. Seas 7 ft.
.MON...Variable wind 10 kt becoming E 20 kt in the afternoon. Seas
6 ft.
.MON NIGHT...E wind 40 kt. Seas 9 ft building to 14 ft after
midnight. Widespread rain showers.
.TUE...SE wind 30 kt. Seas 12 ft.
.TUE NIGHT...NW wind 20 kt. Seas 10 ft.
.WED...S wind 20 kt. Seas 15 ft.
.THU...SW wind 20 kt. Seas 11 ft.
.FRI...W wind 20 kt. Seas 10 ft.

$$

PKZ155-241315-
South of the AK Peninsula Castle Cape to Cape Sarichef-
339 PM AKST Sun Dec 23 2018

...GALE WARNING MONDAY NIGHT...

.TONIGHT...NW wind 15 kt. Seas 7 ft.
.MON...NE wind 30 kt. From the Shumagin Islands E, variable wind
10 kt becoming E 25 kt in the afternoon. Seas 7 ft.
.MON NIGHT...NE wind 40 kt. Seas 14 ft. Widespread snow and rain
showers.
.TUE...N wind 35 kt. Seas 14 ft.
.TUE NIGHT...N wind 20 kt. Seas 10 ft.
.WED...S wind 20 kt. Seas 14 ft.
.THU THROUGH FRI...W wind 20 kt. Seas 12 ft.

$$

PKZ160-241315-
Bristol Bay-
339 PM AKST Sun Dec 23 2018

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...NW wind 15 kt becoming N after midnight. Seas in ice
free waters 3 ft. Patchy freezing fog.
.MON...NE wind 20 kt. Seas in ice free waters 3 ft. Patchy
freezing fog.
.MON NIGHT...NE wind 30 kt. Seas in ice free waters 6 ft. Freezing
spray.
.TUE...NE wind 30 kt. Seas in ice free waters 6 ft.
.TUE NIGHT...NE wind 20 kt. Seas in ice free waters 4 ft.
.WED...E wind 20 kt. Seas in ice free waters 5 ft.
.THU...E wind 15 kt. Seas in ice free waters 2 ft.
.FRI...N wind 10 kt. Seas in ice free waters 2 ft.

$$

PKZ165-241315-
Port Heiden to Cape Sarichef-
339 PM AKST Sun Dec 23 2018

...SMALL CRAFT ADVISORY MONDAY AND MONDAY NIGHT...

.TONIGHT...N wind 15 kt. Seas 5 ft. Freezing spray.
.MON...NE wind 25 kt except N 15 kt from Port Moller E. Seas 6 ft.
.MON NIGHT...NE wind 30 kt. Seas 9 ft.
.TUE...N wind 30 kt. Seas 10 ft.
.TUE NIGHT...NE wind 20 kt. Seas 8 ft.
.WED...E wind 20 kt. Seas 9 ft.
.THU THROUGH FRI...NW wind 15 kt. Seas 5 ft.

$$

PKZ170-241315-
Cape Sarichef to Nikolski Bering Side-
339 PM AKST Sun Dec 23 2018

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

.TONIGHT...E wind increasing to 25 kt. Seas 6 ft.
.MON...NE wind 30 kt. Seas 10 ft.
.MON NIGHT...NE wind 30 kt. Seas 10 ft.
.TUE AND TUE NIGHT...NE wind 25 kt. Seas 9 ft.
.WED...N wind 15 kt. Seas 10 ft.
.THU...NW wind 20 kt. Seas 5 ft.
.FRI...W wind 15 kt. Seas 5 ft.

$$

PKZ171-241315-
Unalaska Bay-
339 PM AKST Sun Dec 23 2018

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...NE wind 10 kt. Seas 3 ft.
.MON...E wind 15 kt becoming NE 20 kt in the afternoon. Seas 3 ft 
building to 7 ft in the afternoon.
.MON NIGHT...NE wind 25 kt. Seas 8 ft.
.TUE...N wind 20 kt. Seas 7 ft.
.TUE NIGHT...NE wind 15 kt. Seas 5 ft.
.WED...SW wind 10 kt. Seas 3 ft.
.THU...W wind 15 kt. Seas 2 ft.
.FRI...W wind 10 kt. Seas 2 ft.

$$

PKZ172-241315-
Cape Sarichef to Nikolski Pacific Side-
339 PM AKST Sun Dec 23 2018

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

.TONIGHT...NE wind 20 kt becoming E 30 kt after midnight. Seas 7
ft.
.MON...E wind 35 kt. Seas 14 ft.
.MON NIGHT...NE wind 35 kt. Seas 15 ft.
.TUE...N wind 25 kt. Seas 13 ft.
.TUE NIGHT...NE wind 25 kt. Seas 9 ft.
.WED...SW wind 20 kt. Seas 18 ft.
.THU THROUGH FRI...W wind 20 kt. Seas 10 ft.

$$

PKZ173-241315-
Nikolski to Seguam Island Bering Side-
339 PM AKST Sun Dec 23 2018

...GALE WARNING MONDAY...

.TONIGHT...E wind increasing to 30 kt. Seas building to 8 ft.
.MON...NE wind 35 kt. Seas 14 ft.
.MON NIGHT...NE wind 30 kt. Seas 13 ft.
.TUE...NE wind 25 kt. Seas 10 ft.
.TUE NIGHT...NE wind 30 kt. Seas 10 ft.
.WED...NW wind 20 kt. Seas 10 ft.
.THU...NW wind 20 kt. Seas 6 ft.
.FRI...SW wind 15 kt. Seas 7 ft.

$$

PKZ174-241315-
Nikolski to Seguam Island Pacific Side-
339 PM AKST Sun Dec 23 2018

...GALE WARNING THROUGH MONDAY...

.TONIGHT...E wind 30 kt increasing to 40 kt after midnight. Seas
9 ft building to 15 ft after midnight.
.MON...NE wind 40 kt. Seas 19 ft. Snow showers and rain showers.
.MON NIGHT...NE wind 30 kt. Seas 17 ft.
.TUE...NE wind 20 kt. Seas 12 ft.
.TUE NIGHT...NE wind 30 kt. Seas 10 ft.
.WED...W wind 20 kt. Seas 17 ft.
.THU...NW wind 20 kt. Seas 11 ft.
.FRI...SW wind 20 kt. Seas 8 ft.

$$

PKZ175-241315-
Seguam Island to Adak Bering Side-
339 PM AKST Sun Dec 23 2018

...GALE WARNING MONDAY...

.TONIGHT...E wind 30 kt. Seas 9 ft.
.MON...NE wind 35 kt. Seas 13 ft.
.MON NIGHT...NE wind 25 kt. Seas 12 ft.
.TUE...NE wind 25 kt. Seas 10 ft.
.TUE NIGHT...NE wind 35 kt. Seas 14 ft.
.WED...N wind 20 kt. Seas 12 ft.
.THU...NW wind 20 kt. Seas 7 ft.
.FRI...S wind 25 kt. Seas 6 ft.

$$

PKZ176-241315-
Seguam Island to Adak Pacific Side-
339 PM AKST Sun Dec 23 2018

...GALE WARNING THROUGH MONDAY...

.TONIGHT...NE wind 40 kt. Seas 12 ft building to 17 ft after
midnight.
.MON...NE wind 40 kt. Seas 20 ft.
.MON NIGHT...NE wind 25 kt. Seas 15 ft.
.TUE...NE wind 25 kt. Seas 11 ft.
.TUE NIGHT...NE wind 35 kt. Seas 16 ft.
.WED...NW wind 20 kt. Seas 17 ft.
.THU...NW wind 20 kt. Seas 11 ft.
.FRI...S wind 25 kt. Seas 8 ft.

$$

PKZ177-241315-
Adak to Kiska-
339 PM AKST Sun Dec 23 2018

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

.TONIGHT...E wind increasing to 30 kt. Seas building to 10 ft.
.MON...NE wind 25 kt. Seas 12 ft.
.MON NIGHT...NE wind 25 kt. Seas 11 ft.
.TUE...E wind 30 kt. Seas 11 ft.
.TUE NIGHT...NE wind 40 kt. Seas 17 ft.
.WED...N wind 25 kt. Seas 17 ft.
.THU...NW wind 20 kt. Seas 10 ft.
.FRI...SE wind 25 kt. Seas 20 ft.

$$

PKZ178-241315-
Kiska to Attu-
339 PM AKST Sun Dec 23 2018

...SMALL CRAFT ADVISORY TONIGHT AND MONDAY NIGHT...

.TONIGHT...E wind 15 kt. Seas 8 ft.
.MON...E wind 15 kt. Seas 7 ft.
.MON NIGHT...E wind 25 kt. Seas 10 ft.
.TUE...E wind 25 kt. Seas 12 ft.
.TUE NIGHT...NE wind 30 kt. Seas 16 ft.
.WED...N wind 25 kt. Seas 16 ft.
.THU...SW wind 30 kt. Seas 15 ft.
.FRI...SE wind 30 kt. Seas 30 ft.

$$

PKZ179-241315-
Pribilof Islands Near Shore Waters-
339 PM AKST Sun Dec 23 2018

...SMALL CRAFT ADVISORY MONDAY AND MONDAY NIGHT...

.TONIGHT...NE wind 15 kt. Seas 4 ft. Freezing spray.
.MON...NE wind 25 kt. Seas 6 ft. Freezing spray.
.MON NIGHT...NE wind 25 kt. Seas 8 ft. Freezing spray.
.TUE...NE wind 25 kt. Seas 8 ft.
.TUE NIGHT...NE wind 20 kt. Seas 6 ft.
.WED...NE wind 15 kt. Seas 8 ft.
.THU THROUGH FRI...N wind 15 kt. Seas 6 ft.

$$

PKZ180-241315-
Kuskokwim Delta and Etolin Strait-
339 PM AKST Sun Dec 23 2018

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

.TONIGHT...N wind 20 kt. Seas in ice free waters 5 ft. Heavy 
freezing spray near the ice edge. Patchy freezing fog.
.MON...N wind 20 kt. Seas in ice free waters 4 ft. Heavy freezing 
spray near the ice edge.
.MON NIGHT...NE wind 25 kt. Seas in ice free waters 6 ft. Heavy 
freezing spray near the ice edge.
.TUE...N wind 25 kt. Seas in ice free waters 6 ft.
.TUE NIGHT...N wind 20 kt. Seas in ice free waters 5 ft.
.WED...E wind 20 kt. Seas in ice free waters 7 ft.
.THU THROUGH FRI...N wind 15 kt. Seas in ice free waters 3 ft.

$$

PKZ181-241315-
North and West of Nunivak Island-
339 PM AKST Sun Dec 23 2018

.TONIGHT...N wind 15 kt. Seas in ice free waters 4 ft. Freezing
spray.
.MON...NE wind 15 kt. Seas in ice free waters 3 ft.
.MON NIGHT...NE wind 20 kt. Seas in ice free waters 3 ft. Freezing
spray.
.TUE AND TUE NIGHT...NE wind 15 kt. Seas in ice free waters 3 ft.
.WED...NE wind 25 kt. Seas in ice free waters 8 ft.
.THU...NE wind 20 kt. Seas in ice free waters 5 ft.
.FRI...N wind 15 kt. Seas in ice free waters 4 ft.

$$

PKZ185-241315-
Saint Matthew Island Waters-
339 PM AKST Sun Dec 23 2018

.TONIGHT...N wind 15 kt. Seas 5 ft.
.MON...N wind 15 kt. Seas 4 ft.
.MON NIGHT...N wind 15 kt. Seas 4 ft.
.TUE...N wind 15 kt. Seas 3 ft.
.TUE NIGHT...N wind 25 kt. Seas 6 ft.
.WED...NE wind 30 kt. Seas 12 ft.
.THU...N wind 25 kt. Seas 11 ft.
.FRI...NE wind 20 kt. Seas 7 ft.

$$

788 
FZAK52 PAFC 241238
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
338 AM AKST Mon Dec 24 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.

PKZ199-250130-
338 AM AKST Mon Dec 24 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 978 mb low 330 nm southeast of Adak will move to 140 nm
southeast of Cold Bay at 986 mb Tue morning. The low will then 
move into the southwestern Gulf Wed morning. A front will move 
over the western Aleutians Tue afternoon and persist through Wed.

$$

PKZ150-250130-
South of the AK Peninsula Sitkinak to Castle Cape-
338 AM AKST Mon Dec 24 2018

...GALE WARNING TONIGHT...

.TODAY...Variable wind 10 kt becoming E 20 kt in the afternoon.
Seas 6 ft.
.TONIGHT...E wind 35 kt. Seas 6 ft building to 12 ft after midnight.
Widespread rain and snow showers.
.TUE...SE wind 30 kt becoming S 20 kt in the afternoon. 
Seas 12 ft.
.TUE NIGHT...SW wind 20 kt. Seas 10 ft.
.WED...SE wind 30 kt. Seas 12 ft.
.THU...SW wind 25 kt. Seas 12 ft.
.FRI...W wind 25 kt. Seas 10 ft.

$$

PKZ155-250130-
South of the AK Peninsula Castle Cape to Cape Sarichef-
338 AM AKST Mon Dec 24 2018

...GALE WARNING TONIGHT...

.TODAY...N wind 10 kt becoming NE 30 kt. From the Shumagin Islands 
E, E wind 15 kt increasing to 25 kt in the afternoon. Seas 7 ft.
.TONIGHT...NE wind 35 kt. Seas 12 ft. Widespread rain and snow
showers.
.TUE...N wind 25 kt. From the Shumagin Islands E, SE wind 30 kt
becoming NW 15 kt in the afternoon. Seas 11 ft.
.TUE NIGHT...NW wind 15 kt. Seas 9 ft.
.WED...SE wind 25 kt. Seas 12 ft.
.THU...W wind 20 kt. Seas 12 ft.
.FRI...W wind 25 kt. Seas 11 ft.

$$

PKZ160-250130-
Bristol Bay-
338 AM AKST Mon Dec 24 2018

...SMALL CRAFT ADVISORY TONIGHT AND TUESDAY...

.TODAY...NE wind 20 kt. Seas in ice free waters 3 ft. 
Freezing spray and patchy freezing fog.
.TONIGHT THROUGH TUE NIGHT...NE wind 25 kt. Seas in ice free waters 
5 ft. Freezing spray.
.WED...NE wind 20 kt. Seas in ice free waters 2 ft.
.THU...NE wind 15 kt. Seas in ice free waters 2 ft.
.FRI...N wind 20 kt. Seas in ice free waters 6 ft.

$$

PKZ165-250130-
Port Heiden to Cape Sarichef-
338 AM AKST Mon Dec 24 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...NE wind 20 kt increasing to 30 kt in the afternoon. 
From Port Moller E, NE wind 15 kt. Seas 6 ft.
.TONIGHT AND TUE...NE wind 30 kt. Seas 9 ft.
.TUE NIGHT...N wind 20 kt. Seas 8 ft.
.WED...E wind 15 kt. Seas 5 ft.
.THU...W wind 15 kt. Seas 5 ft.
.FRI...NW wind 20 kt. Seas 6 ft.

$$

PKZ170-250130-
Cape Sarichef to Nikolski Bering Side-
338 AM AKST Mon Dec 24 2018

...GALE WARNING TODAY...

.TODAY...NE wind 35 kt. Seas 10 ft.
.TONIGHT...NE wind 30 kt. Seas 11 ft.
.TUE...NE wind 30 kt diminishing to 20 kt in the afternoon. 
Seas 10 ft.
.TUE NIGHT...NE wind 20 kt. Seas 8 ft.
.WED...NE wind 30 kt. Seas 9 ft.
.THU...NW wind 20 kt. Seas 8 ft.
.FRI...W wind 15 kt. Seas 7 ft.

$$

PKZ171-250130-
Unalaska Bay-
338 AM AKST Mon Dec 24 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...NE wind 15 kt increasing to 30 kt in the afternoon. 
Seas 5 ft building to 8 ft in the afternoon.
.TONIGHT...NE wind 25 kt. Seas 8 ft.
.TUE...N wind 25 kt diminishing to 15 kt in the afternoon. 
Seas 8 ft subsiding to 5 ft in the afternoon.
.TUE NIGHT...NE wind 15 kt. Seas 5 ft.
.WED...NE wind 15 kt. Seas 5 ft.
.THU...NW wind 15 kt. Seas 5 ft.
.FRI...W wind 10 kt. Seas 2 ft.

$$

PKZ172-250130-
Cape Sarichef to Nikolski Pacific Side-
338 AM AKST Mon Dec 24 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...NE wind 35 kt. Seas 14 ft.
.TONIGHT...NE wind 35 kt. Seas 15 ft.
.TUE...N wind 25 kt. Seas 13 ft.
.TUE NIGHT...NE wind 20 kt. Seas 9 ft.
.WED...SE wind 20 kt. Seas 13 ft.
.THU THROUGH FRI...W wind 20 kt. Seas 13 ft.

$$

PKZ173-250130-
Nikolski to Seguam Island Bering Side-
338 AM AKST Mon Dec 24 2018

...GALE WARNING TODAY...

.TODAY...NE wind 35 kt. Seas 13 ft.
.TONIGHT...NE wind 30 kt. Seas 13 ft.
.TUE...NE wind 25 kt. Seas 11 ft.
.TUE NIGHT...NE wind 25 kt. Seas 9 ft.
.WED...NE wind 30 kt. Seas 12 ft.
.THU...NW wind 20 kt. Seas 10 ft.
.FRI...S wind 20 kt. Seas 19 ft.

$$

PKZ174-250130-
Nikolski to Seguam Island Pacific Side-
338 AM AKST Mon Dec 24 2018

...GALE WARNING TODAY...

.TODAY...NE wind 40 kt. Seas 18 ft. Rain showers.
.TONIGHT...NE wind 30 kt. Seas 16 ft.
.TUE...NE wind 25 kt. Seas 12 ft.
.TUE NIGHT...E wind 25 kt. Seas 9 ft.
.WED...NE wind 30 kt. Seas 15 ft.
.THU...NW wind 20 kt. Seas 11 ft.
.FRI...SW wind 25 kt. Seas 25 ft.

$$

PKZ175-250130-
Seguam Island to Adak Bering Side-
338 AM AKST Mon Dec 24 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...NE wind 30 kt. Seas 13 ft.
.TONIGHT THROUGH TUE NIGHT...NE wind 25 kt. Seas 12 ft.
.WED...N wind 30 kt. Seas 12 ft.
.THU...NW wind 20 kt. Seas 10 ft.
.FRI...S wind 25 kt. Seas 16 ft.

$$

PKZ176-250130-
Seguam Island to Adak Pacific Side-
338 AM AKST Mon Dec 24 2018

...GALE WARNING TODAY...

.TODAY...NE wind 40 kt. Seas 19 ft.
.TONIGHT...NE wind 25 kt. Seas 15 ft.
.TUE...NE wind 25 kt. Seas 11 ft.
.TUE NIGHT...NE wind 30 kt. Seas 15 ft.
.WED...N wind 35 kt. Seas 17 ft.
.THU...NW wind 20 kt. Seas 11 ft.
.FRI...S wind 25 kt. Seas 26 ft.

$$

PKZ177-250130-
Adak to Kiska-
338 AM AKST Mon Dec 24 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...NE wind 25 kt. Seas 12 ft.
.TONIGHT...NE wind 25 kt. Seas 11 ft.
.TUE...E wind 30 kt. Seas 12 ft.
.TUE NIGHT...NE wind 30 kt. Seas 17 ft.
.WED...N wind 30 kt. Seas 15 ft.
.THU...NW wind 20 kt. Seas 10 ft.
.FRI...SE wind 25 kt. Seas 23 ft.

$$

PKZ178-250130-
Kiska to Attu-
338 AM AKST Mon Dec 24 2018

...SMALL CRAFT ADVISORY TONIGHT AND TUESDAY...

.TODAY...E wind 10 kt increasing to 20 kt in the afternoon. 
Seas 7 ft.
.TONIGHT...E wind 25 kt. Seas 10 ft.
.TUE...E wind 30 kt. Seas 14 ft.
.TUE NIGHT...NE wind 30 kt. Seas 16 ft.
.WED...N wind 25 kt. Seas 13 ft.
.THU...S wind 30 kt. Seas 15 ft.
.FRI...SE wind 30 kt. Seas 30 ft.

$$

PKZ179-250130-
Pribilof Islands Near Shore Waters-
338 AM AKST Mon Dec 24 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...NE wind 15 kt increasing to 25 kt in the afternoon. 
Seas 5 ft. Freezing spray.
.TONIGHT AND TUE...NE wind 25 kt. Seas 8 ft. Freezing spray.
.TUE NIGHT...NE wind 20 kt. Seas 7 ft.
.WED...N wind 25 kt. Seas 8 ft.
.THU...NW wind 20 kt. Seas 7 ft.
.FRI...N wind 15 kt. Seas 7 ft.

$$

PKZ180-250130-
Kuskokwim Delta and Etolin Strait-
338 AM AKST Mon Dec 24 2018

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

.TODAY...N wind 20 kt. Seas in ice free waters 4 ft. 
Heavy freezing spray near the ice edge.
.TONIGHT...NE wind 25 kt. Seas in ice free waters 5 ft. 
Heavy freezing spray near the ice edge.
.TUE...N wind 25 kt. Seas in ice free waters 6 ft. 
Heavy freezing spray near the ice edge.
.TUE NIGHT...N wind 25 kt. Seas in ice free waters 6 ft.
.WED...NE wind 25 kt. Seas in ice free waters 4 ft.
.THU THROUGH FRI...N wind 20 kt. Seas in ice free waters 4 ft.

$$

PKZ181-250130-
North and West of Nunivak Island-
338 AM AKST Mon Dec 24 2018

...HEAVY FREEZING SPRAY WARNING TONIGHT AND TUESDAY...

.TODAY...N wind 15 kt. Seas in ice free waters 2 ft.
.TONIGHT...NE wind 20 kt. Seas in ice free waters 3 ft. 
Heavy freezing spray near the ice edge.
.TUE...NE wind 15 kt. Seas in ice free waters 3 ft. 
Heavy freezing spray near the ice edge.
.TUE NIGHT...N wind 20 kt. Seas in ice free waters 4 ft.
.WED...N wind 25 kt. Seas in ice free waters 5 ft.
.THU THROUGH FRI...N wind 20 kt. Seas in ice free waters 5 ft.

$$

PKZ185-250130-
Saint Matthew Island Waters-
338 AM AKST Mon Dec 24 2018

.TODAY...N wind 15 kt. Seas 4 ft.
.TONIGHT THROUGH TUE NIGHT...N wind 15 kt. Seas 4 ft. Freezing spray.
.WED...N wind 25 kt. Seas 6 ft.
.THU...N wind 20 kt. Seas 11 ft.
.FRI...NE wind 30 kt. Seas 9 ft.

$$

488 
FZAK52 PAFC 250033
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
333 PM AKST Mon Dec 24 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.

PKZ199-251330-
333 PM AKST Mon Dec 24 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 985 mb low 380 nm southwest of Dutch Harbor Mon afternoon will 
move to 120 nm southeast of Sand Point at 992 mb by Tue afternoon
and then will weaken and dissipate by Tue night. A front 
approaches the western Aleutians by Tue morning. The associated 
976 mb low 450 nm southwest of Adak Tue afternoon will move to 
375 nm south of Adak at 986 mb by Wed afternoon.


$$

PKZ150-251330-
South of the AK Peninsula Sitkinak to Castle Cape-
333 PM AKST Mon Dec 24 2018

...GALE WARNING TONIGHT...

.TONIGHT...E wind increasing to 35 kt this evening. Seas 12 ft. 
Widespread rain showers.
.TUE...SE wind 30 kt becoming S 15 kt in the afternoon. 
Seas 12 ft.
.TUE NIGHT...SW wind 15 kt. Seas 9 ft.
.WED...S wind 15 kt. Seas 10 ft.
.WED NIGHT...SE wind 30 kt. Seas 11 ft.
.THU...SW wind 30 kt. Seas 13 ft.
.FRI THROUGH SAT...NW wind 25 kt. Seas 10 ft.

$$

PKZ155-251330-
South of the AK Peninsula Castle Cape to Cape Sarichef-
333 PM AKST Mon Dec 24 2018

...GALE WARNING TONIGHT...

.TONIGHT...NE wind increasing to 35 kt this evening. 
Seas 14 ft. Widespread rain and snow showers.
.TUE...N wind 30 kt. Seas 13 ft.
.TUE NIGHT...NW wind 15 kt. Seas 10 ft.
.WED...SE wind 15 kt. Seas 7 ft.
.WED NIGHT...SW wind 20 kt. Seas 13 ft.
.THU...W wind 20 kt. Seas 13 ft.
.FRI THROUGH SAT...W wind 25 kt. Seas 13 ft.

$$

PKZ160-251330-
Bristol Bay-
333 PM AKST Mon Dec 24 2018

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

.TONIGHT...NE wind increasing to 30 kt. Seas in ice 
free waters 5 ft. Freezing spray.
.TUE...NE wind 30 kt. Seas in ice free waters 6 ft. 
Freezing spray.
.TUE NIGHT...NE wind 25 kt. Seas in ice free waters 5 ft. 
Freezing spray.
.WED...E wind 15 kt. Seas in ice free waters 2 ft.
.WED NIGHT...NE wind 20 kt. Seas in ice free waters 2 ft.
.THU...NE wind 15 kt. Seas in ice free waters 2 ft.
.FRI THROUGH SAT...N wind 20 kt. Seas in ice free waters 6 ft.

$$

PKZ165-251330-
Port Heiden to Cape Sarichef-
333 PM AKST Mon Dec 24 2018

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

.TONIGHT...NE wind increasing to 30 kt. Seas 10 ft.
.TUE...NE wind 30 kt. Seas 10 ft.
.TUE NIGHT...N wind 20 kt. Seas 9 ft.
.WED...E wind 15 kt. Seas 6 ft.
.WED NIGHT...NE wind 20 kt. Seas 5 ft.
.THU THROUGH FRI...NW wind 20 kt. Seas 6 ft.
.SAT...N wind 20 kt. Seas 6 ft.

$$

PKZ170-251330-
Cape Sarichef to Nikolski Bering Side-
333 PM AKST Mon Dec 24 2018

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

.TONIGHT...NE wind 30 kt. Seas 11 ft.
.TUE...NE wind 30 kt. Seas 11 ft.
.TUE NIGHT...NE wind 20 kt. Seas 9 ft.
.WED AND WED NIGHT...N wind 30 kt. Seas 9 ft.
.THU...NW wind 25 kt. Seas 9 ft.
.FRI...W wind 15 kt. Seas 7 ft.
.SAT...SE wind 20 kt. Seas 13 ft.

$$

PKZ171-251330-
Unalaska Bay-
333 PM AKST Mon Dec 24 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...NE wind 30 kt. Seas 9 ft.
.TUE...N wind 25 kt. Seas 7 ft.
.TUE NIGHT...N wind 15 kt. Seas 5 ft subsiding to 3 ft 
after midnight.
.WED...E wind 15 kt. Seas 3 ft.
.WED NIGHT...NE wind 20 kt. Seas 7 ft.
.THU...NW wind 25 kt. Seas 7 ft.
.FRI...W wind 10 kt. Seas 2 ft.
.SAT...SE wind 15 kt. Seas 2 ft.

$$

PKZ172-251330-
Cape Sarichef to Nikolski Pacific Side-
333 PM AKST Mon Dec 24 2018

...GALE WARNING TONIGHT...

.TONIGHT...NE wind 35 kt. Seas 14 ft.
.TUE...N wind 25 kt. Seas 12 ft.
.TUE NIGHT...NE wind 15 kt. Seas 8 ft.
.WED...E wind 20 kt. Seas 12 ft.
.WED NIGHT...W wind 20 kt. Seas 13 ft.
.THU...W wind 30 kt. Seas 13 ft.
.FRI...W wind 20 kt. Seas 12 ft.
.SAT...S wind 20 kt. Seas 27 ft.

$$

PKZ173-251330-
Nikolski to Seguam Island Bering Side-
333 PM AKST Mon Dec 24 2018

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

.TONIGHT...NE wind 30 kt. Seas 13 ft.
.TUE...NE wind 25 kt. Seas 11 ft.
.TUE NIGHT...NE wind 25 kt. Seas 9 ft.
.WED AND WED NIGHT...N wind 30 kt. Seas 12 ft.
.THU...NW wind 25 kt. Seas 10 ft.
.FRI...S wind 20 kt. Seas 19 ft.
.SAT...SE wind 20 kt. Seas 19 ft.

$$

PKZ174-251330-
Nikolski to Seguam Island Pacific Side-
333 PM AKST Mon Dec 24 2018

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

.TONIGHT...NE wind 30 kt. Seas 16 ft.
.TUE...NE wind 20 kt. Seas 11 ft.
.TUE NIGHT...E wind 20 kt. Seas 9 ft. Rain showers.
.WED...E wind 30 kt. Seas 15 ft.
.WED NIGHT...N wind 30 kt. Seas 14 ft.
.THU...NW wind 30 kt. Seas 12 ft.
.FRI...SW wind 25 kt. Seas 25 ft.
.SAT...SE wind 25 kt. Seas 25 ft.

$$

PKZ175-251330-
Seguam Island to Adak Bering Side-
333 PM AKST Mon Dec 24 2018

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

.TONIGHT...NE wind 25 kt. Seas 12 ft.
.TUE...NE wind 25 kt. Seas 10 ft.
.TUE NIGHT...NE wind 30 kt. Seas 12 ft.
.WED AND WED NIGHT...N wind 30 kt. Seas 12 ft.
.THU...NW wind 25 kt. Seas 10 ft.
.FRI...S wind 25 kt. Seas 16 ft.
.SAT...SE wind 25 kt. Seas 16 ft.

$$

PKZ176-251330-
Seguam Island to Adak Pacific Side-
333 PM AKST Mon Dec 24 2018

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

.TONIGHT...NE wind 25 kt. Seas 15 ft.
.TUE...NE wind 25 kt. Seas 11 ft.
.TUE NIGHT...E wind 30 kt. 
Seas 11 ft building to 16 ft after midnight.
.WED...NE wind 30 kt. Seas 17 ft.
.WED NIGHT...N wind 35 kt. Seas 15 ft.
.THU...NW wind 30 kt. Seas 11 ft.
.FRI...S wind 25 kt. Seas 26 ft.
.SAT...SE wind 25 kt. Seas 26 ft.

$$

PKZ177-251330-
Adak to Kiska-
333 PM AKST Mon Dec 24 2018

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

.TONIGHT...NE wind 25 kt. Seas 11 ft.
.TUE...E wind 30 kt. Seas 12 ft.
.TUE NIGHT...NE wind 30 kt. Seas 17 ft.
.WED AND WED NIGHT...N wind 30 kt. Seas 14 ft.
.THU...NW wind 20 kt. Seas 10 ft.
.FRI THROUGH SAT...E wind 25 kt. Seas 24 ft.

$$

PKZ178-251330-
Kiska to Attu-
333 PM AKST Mon Dec 24 2018

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

.TONIGHT...E wind 25 kt. Seas 10 ft.
.TUE...E wind 30 kt. Seas 15 ft.
.TUE NIGHT...NE wind 30 kt. Seas 16 ft.
.WED...NE wind 30 kt. Seas 14 ft.
.WED NIGHT...N wind 20 kt. Seas 10 ft.
.THU...S wind 30 kt. Seas 15 ft.
.FRI THROUGH SAT...E wind 30 kt. Seas 28 ft.

$$

PKZ179-251330-
Pribilof Islands Near Shore Waters-
333 PM AKST Mon Dec 24 2018

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

.TONIGHT...NE wind 25 kt. Seas 8 ft. Freezing spray.
.TUE...NE wind 25 kt. Seas 8 ft. Freezing spray.
.TUE NIGHT...NE wind 25 kt. Seas 8 ft. Freezing spray.
.WED AND WED NIGHT...N wind 25 kt. Seas 8 ft.
.THU...NW wind 20 kt. Seas 7 ft.
.FRI...N wind 15 kt. Seas 7 ft.
.SAT...E wind 20 kt. Seas 18 ft.

$$

PKZ180-251330-
Kuskokwim Delta and Etolin Strait-
333 PM AKST Mon Dec 24 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...NE wind increasing to 25 kt. Seas in ice free waters 
5 ft. Freezing spray.
.TUE...N wind 25 kt. Seas in ice free waters 6 ft. Freezing spray.
.TUE NIGHT...N wind 20 kt. Seas in ice free waters 6 ft. 
Freezing spray.
.WED AND WED NIGHT...NE wind 25 kt. Seas in ice free waters 4 ft.
.THU...N wind 25 kt. Seas in ice free waters 5 ft.
.FRI THROUGH SAT...N wind 20 kt. Seas in ice free waters 6 ft.

$$

PKZ181-251330-
North and West of Nunivak Island-
333 PM AKST Mon Dec 24 2018

...HEAVY FREEZING SPRAY WARNING TUESDAY NIGHT...

.TONIGHT...NE wind increasing to 20 kt. Seas in ice free 
waters 3 ft. Freezing spray.
.TUE...NE wind 20 kt. Seas in ice free waters 3 ft. 
Freezing spray.
.TUE NIGHT...N wind 20 kt. Seas in ice free waters 4 ft. 
Heavy freezing spray.
.WED...N wind 25 kt. Seas in ice free waters 5 ft.
.WED NIGHT...N wind 20 kt. Seas in ice free waters 5 ft.
.THU THROUGH SAT...NE wind 20 kt. Seas in ice free waters 6 ft.

$$

PKZ185-251330-
Saint Matthew Island Waters-
333 PM AKST Mon Dec 24 2018

.TONIGHT...N wind 15 kt. Seas 4 ft.
.TUE...N wind 15 kt. Seas 4 ft. Freezing spray.
.TUE NIGHT...N wind 15 kt. Seas 4 ft. Freezing spray.
.WED AND WED NIGHT...N wind 20 kt. Seas 7 ft.
.THU...N wind 25 kt. Seas 11 ft.
.FRI...NE wind 30 kt. Seas 9 ft.
.SAT...NE wind 30 kt. Seas 21 ft.

$$

667 
FZAK52 PAFC 251227
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
327 AM AKST Tue Dec 25 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.

PKZ199-260100-
327 AM AKST Tue Dec 25 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 987 mb low 35 nm southeast of Sand Point will move into the 
southwestern Gulf and dissipate Wed morning. A front over the 
western Aleutians will move over the central Aleutians Wed 
afternoon then it will dissipate Thu morning. A series of weak 
lows will move over the eastern Aleutians Wed afternoon through 
Thu. 

$$

PKZ150-260100-
South of the AK Peninsula Sitkinak to Castle Cape-
327 AM AKST Tue Dec 25 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...E wind 30 kt in the morning becoming S 10 kt. Seas 11 ft.
.TONIGHT AND WED...Variable wind 10 kt. Seas 10 ft.
.WED NIGHT...S wind 15 kt. Seas 10 ft.
.THU...W wind 20 kt. Seas 11 ft.
.FRI THROUGH SAT...W wind 30 kt. Seas 10 ft.

$$

PKZ155-260100-
South of the AK Peninsula Castle Cape to Cape Sarichef-
327 AM AKST Tue Dec 25 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt. From the Shumagin Islands E, S wind 30 kt
becoming SE 15 kt in the afternoon. Seas 13 ft.
.TONIGHT...N wind 20 kt in the evening becoming variable 10 kt.
Seas 10 ft.
.WED...Variable wind 10 kt. Seas 7 ft.
.WED NIGHT...SE wind 15 kt. Seas 11 ft.
.THU...NW wind 20 kt. Seas 12 ft.
.FRI...NW wind 25 kt. Seas 11 ft.
.SAT...SW wind 30 kt. Seas 19 ft.

$$

PKZ160-260100-
Bristol Bay-
327 AM AKST Tue Dec 25 2018

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

.TODAY...NE wind 30 kt. Seas in ice free waters 6 ft. Heavy freezing
spray near the ice edge in the morning. Patchy freezing fog.
.TONIGHT...NE wind 20 kt diminishing to 10 kt. Seas in ice free 
waters 3 ft.
.WED...Variable wind 10 kt. Seas in ice free waters 1 foot.
.WED NIGHT...E wind 15 kt. Seas in ice free waters 1 foot.
.THU...NW wind 15 kt. Seas in ice free waters 2 ft.
.FRI...NW wind 20 kt. Seas in ice free waters 5 ft.
.SAT...N wind 20 kt. Seas in ice free waters 5 ft.

$$

PKZ165-260100-
Port Heiden to Cape Sarichef-
327 AM AKST Tue Dec 25 2018

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt. Seas 10 ft.
.TONIGHT...N wind 20 kt except variable less than 10 kt from Port
Moller E after midnight. Seas 8 ft.
.WED...NE wind 20 kt except variable 10 kt from Port Moller E.
Seas 6 ft.
.WED NIGHT...NE wind 20 kt. Seas 6 ft.
.THU THROUGH FRI...NW wind 20 kt. Seas 7 ft.
.SAT...E wind 25 kt. Seas 8 ft.

$$

PKZ170-260100-
Cape Sarichef to Nikolski Bering Side-
327 AM AKST Tue Dec 25 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...NE wind 30 kt. Seas 10 ft.
.TONIGHT...NE wind 25 kt. Seas 9 ft.
.WED...NE wind 30 kt. Seas 8 ft.
.WED NIGHT...NE wind 30 kt. Seas 10 ft.
.THU...NW wind 25 kt. Seas 8 ft.
.FRI...W wind 20 kt. Seas 8 ft.
.SAT...SE wind 25 kt. Seas 10 ft.

$$

PKZ171-260100-
Unalaska Bay-
327 AM AKST Tue Dec 25 2018

.TODAY...N wind 20 kt. Seas 7 ft.
.TONIGHT...N wind 20 kt. Seas 7 ft subsiding to 4 ft after midnight.
.WED...E wind 15 kt diminishing to 10 kt in the afternoon. 
Seas 2 ft. Rain showers and snow showers.
.WED NIGHT...NE wind 20 kt. Seas 7 ft.
.THU...NW wind 20 kt. Seas 7 ft.
.FRI...W wind 15 kt. Seas 5 ft.
.SAT...SE wind 20 kt. Seas 3 ft.

$$

PKZ172-260100-
Cape Sarichef to Nikolski Pacific Side-
327 AM AKST Tue Dec 25 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...N wind 25 kt. Seas 12 ft.
.TONIGHT...NE wind 15 kt. Seas 8 ft.
.WED...E wind 20 kt. Seas 11 ft. Rain showers.
.WED NIGHT...NE wind 20 kt. Seas 12 ft.
.THU...NW wind 25 kt. Seas 10 ft.
.FRI...W wind 20 kt. Seas 8 ft.
.SAT...S wind 30 kt. Seas 21 ft.

$$

PKZ173-260100-
Nikolski to Seguam Island Bering Side-
327 AM AKST Tue Dec 25 2018

...GALE WARNING WEDNESDAY...

.TODAY...NE wind 25 kt. Seas 10 ft.
.TONIGHT...NE wind 25 kt. Seas 9 ft.
.WED AND WED NIGHT...NE wind 35 kt. Seas 12 ft.
.THU...NW wind 30 kt. Seas 10 ft.
.FRI...S wind 30 kt. Seas 7 ft.
.SAT...SE wind 30 kt. Seas 13 ft.

$$

PKZ174-260100-
Nikolski to Seguam Island Pacific Side-
327 AM AKST Tue Dec 25 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...NE wind 20 kt. Seas 11 ft.
.TONIGHT...E wind 25 kt. Seas 10 ft.
.WED...E wind 30 kt. Seas 15 ft. Rain showers and snow showers.
.WED NIGHT...NE wind 35 kt. Seas 14 ft.
.THU...NW wind 35 kt. Seas 14 ft.
.FRI...S wind 30 kt. Seas 8 ft.
.SAT...SE wind 30 kt. Seas 19 ft.

$$

PKZ175-260100-
Seguam Island to Adak Bering Side-
327 AM AKST Tue Dec 25 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...NE wind 25 kt. Seas 10 ft.
.TONIGHT AND WED...NE wind 30 kt. Seas 12 ft.
.WED NIGHT...N wind 35 kt. Seas 13 ft.
.THU...NW wind 25 kt. Seas 10 ft.
.FRI THROUGH SAT...SE wind 30 kt. Seas 12 ft.

$$

PKZ176-260100-
Seguam Island to Adak Pacific Side-
327 AM AKST Tue Dec 25 2018

...GALE WARNING WEDNESDAY...

.TODAY...NE wind 25 kt. Seas 10 ft.
.TONIGHT...NE wind 30 kt. Seas 11 ft building to 16 ft after
midnight.
.WED...NE wind 35 kt. Seas 17 ft.
.WED NIGHT...N wind 40 kt. Seas 16 ft.
.THU...NW wind 30 kt. Seas 12 ft.
.FRI...S wind 35 kt. Seas 24 ft.
.SAT...SE wind 30 kt. Seas 24 ft.

$$

PKZ177-260100-
Adak to Kiska-
327 AM AKST Tue Dec 25 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...E wind 30 kt. Seas 12 ft.
.TONIGHT...NE wind 30 kt. Seas 16 ft.
.WED...NE wind 30 kt. Seas 15 ft.
.WED NIGHT...N wind 30 kt. Seas 12 ft.
.THU...NW wind 30 kt. Seas 9 ft.
.FRI...SE wind 35 kt. Seas 27 ft.
.SAT...SE wind 25 kt. Seas 25 ft.

$$

PKZ178-260100-
Kiska to Attu-
327 AM AKST Tue Dec 25 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...E wind 30 kt. Seas 14 ft.
.TONIGHT...NE wind 30 kt. Seas 15 ft.
.WED...NE wind 30 kt. Seas 13 ft.
.WED NIGHT...NE wind 20 kt. Seas 10 ft.
.THU...SE wind 35 kt. Seas 15 ft.
.FRI...SE wind 35 kt. Seas 32 ft.
.SAT...SE wind 30 kt. Seas 32 ft.

$$

PKZ179-260100-
Pribilof Islands Near Shore Waters-
327 AM AKST Tue Dec 25 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...NE wind 30 kt diminishing to 20 kt in the afternoon. 
Seas 8 ft. Freezing spray.
.TONIGHT THROUGH WED NIGHT...NE wind 25 kt. Seas 7 ft. 
Freezing spray.
.THU THROUGH FRI...N wind 20 kt. Seas 7 ft.
.SAT...E wind 25 kt. Seas 11 ft.

$$

PKZ180-260100-
Kuskokwim Delta and Etolin Strait-
327 AM AKST Tue Dec 25 2018

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

.TODAY...N wind 25 kt. Seas in ice free waters 6 ft. 
Heavy freezing spray near the ice edge.
.TONIGHT...N wind 25 kt. Seas in ice free waters 5 ft. 
Heavy freezing spray near the ice edge.
.WED AND WED NIGHT...N wind 20 kt. Seas in ice free waters 4 ft. 
Heavy freezing spray near the ice edge.
.THU...N wind 25 kt. Seas in ice free waters 5 ft.
.FRI...N wind 15 kt. Seas in ice free waters 5 ft.
.SAT...NE wind 25 kt. Seas in ice free waters 5 ft.

$$

PKZ181-260100-
North and West of Nunivak Island-
327 AM AKST Tue Dec 25 2018

...HEAVY FREEZING SPRAY WARNING THROUGH WEDNESDAY...

.TODAY...N wind 20 kt. Seas in ice free waters 3 ft. 
Heavy freezing spray.
.TONIGHT THROUGH FRI...N wind 20 kt. Seas in ice free waters 4 ft. 
Heavy freezing spray.
.SAT...NE wind 25 kt. Seas in ice free waters 6 ft.

$$

PKZ185-260100-
Saint Matthew Island Waters-
327 AM AKST Tue Dec 25 2018

.TODAY...N wind 15 kt. Seas 4 ft. Freezing spray.
.TONIGHT THROUGH THU...N wind 20 kt. Seas 5 ft. Freezing spray.
.FRI...NE wind 30 kt. Seas 11 ft.
.SAT...NE wind 35 kt. Seas 13 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
416 PM AKST Sat Dec 22 2018

.ANALYSIS AND UPPER LEVELS...
A weakening vertically stacked low is nearly stationary south of
Kodiak Island. There is no longer a discernible front associated
with this low, though tight pressure gradients continue to produce
Small Craft to Gale force winds across the Gulf coastal waters.
Broad and deep instability combined with a series of weak upper
level waves rotating around the low center are producing showers
across the Gulf, Kodiak Island, Prince William Sound and over to
Bristol Bay. Weak deformation between this system and a short-
wave trough sitting off the west coast of Alaska has set up in the
vicinity of Bethel and the Kuskokwim Delta, leading to a fairly
narrow band of light snow. Quiet conditions dominate interior
portions of both Southcentral and Southwest Alaska.

Out west, a deeper vertically stacked low just south of the
western-most Aleutian Islands is slowing tracking off to the south.
An occluded front extends northward across the western Bering,
then eastward across the central Bering. Rain and snow showers and
gusty winds persist in the vicinity of the low center as well as
along the occluded front.

A seasonably strong undulating upper level jet remains south of
Alaska, across the North Pacific. Expect several storm systems to
develop along the jet, one of which will be far enough north to
affect the Alaska Peninsula and vicinity within 2 or 3 days.

&&

.MODEL DISCUSSION...
Models have a fairly good handle on the large scale pattern,
though are struggling with some of the weaker and smaller scale
features transiting around the Gulf low. In particular, the
precipitation forecast for Bristol bay and the Kuskokwim Delta is
a challenge. Fortunately, any snow that does fall is expected to
be on the light side with little in the way of accumulation.

More significant differences develop with the storm system
tracking south of the Eastern Aleutians and Alaska Peninsula
Monday into Tuesday. This looks like a case of multiple triple
point development, with each low forming and rotating back
westward over top of the original parent low. Run-to-run
consistency is poor and forecast confidence is low in such
a complex scenario.

&&

.AVIATION...
PANC...VFR conditions and light winds will persist.

&&

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

A mix of rain and snow showers along a weakening occlusion will
diminish from north to south across Southcentral overnight as the
parent low south of Kodiak Island continues drift south before
sliding east across the Gulf tomorrow. Locations along the
immediate coast that saw mostly rain with this system should see a
brief changeover back to snow, with little to no accumulation,
before the precipitation comes to an end. By late tomorrow, only a
few isolated showers will remain over the marine areas. With the
low moving east through the Gulf, a northerly flow over the
southcentral mainland will be on the increase, allowing colder air
to move back over the region Sunday night through Christmas Eve.
The development of a weak trough along the coast near Yakutat
could spread a few scattered snow showers across the eastern half
of Prince William Sound for Monday as well. Otherwise, conditions
should remain cold and dry across the southcentral mainland. The
next low moves south of the AKPEN late Monday sweeping a front
first over Kodiak Island then across the Gulf. Strong
southeasterly flow will advect plenty of moisture ahead and along
the front, with areas of snow changing to rain for locations like
Kodiak City Christmas Eve night into Christmas morning. Farther
north, snow is expected to develop along the eastern Kenai
Peninsula and western Prince William Sound by early Christmas
morning. With a strong southeasterly push of warmer air, a
changeover to rain by Christmas evening along the immediate coast
cannot be ruled out. The cross-barrier flow will also limit the
the chance for snow along the lee of the Kenai and Chugach
Mountains, including the Anchorage Bowl.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3: Today
through Monday Night)...

Areas of light snow showers will push west across the southwest
mainland tonight through tomorrow as easterly mid-level flow
pushes moisture across the Aleutian and Alaskan Ranges from a
surface low south of Kodiak. The low will also lead to mostly
cloudy conditions and thus somewhat warmer air through the
weekend, with temperatures near the Bristol Bay coast and AKPEN
warming to the mid 20's to even lower 30's in spots. Colder air
will persist over the Lower Kuskokwim River Valley and Y-K Delta
with temps generally in the negative to positive single digits. By
Monday, skies should clear some as high pressure briefly builds
in. This will also bring a return to cold northerly flow and
temperatures dropping around 10 degrees lower than on Sunday,
though not as cold as they were this past week. By Tuesday, cloud
cover will increase ahead of the next system tracking east, just
south of the Aleutians. This system will be a bit stronger and
will pump in warmer temperatures to the area. Increasing
easterly/cross barrier flow should lead to downsloping and keep
precipitation relegated mostly to the higher terrain.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3:
Today through Monday Night)...

A ridge of high pressure will drift east over the Eastern Bering
and Aleutians through Monday leading to fairly quiet weather with
just some isolated snow showers on the Bering side of the islands
tonight. Out west, a 973 mb surface low centered south of Attu
will continue swinging a front north across the Western Aleutians
and Bering before dying out. Winds will also continue to diminish
tonight and tomorrow as the low continues to move to the south.

By Monday, two Pacific lows look to merge a couple hundred miles
south of Adak and track east-northeast towards the eastern
Aleutians and AKPEN. Model runs have been struggling with this
system and have failed to lock onto the placement and strength of
multiple surface lows embedded within the upper level trough.
Trends have shown the general track to stay just south of the
islands before clipping the south side of the AKPEN on Tuesday.
Low placement is important, especially with precip type, as a more
southern track will keep warmer air south, allowing mostly snow
to develop. On the other hand, a more northerly track will bring
mostly rain, especially to the Pacific side of the Aleutians and
AKPEN. Right now, it looks like colder air will remain on the
Bering side of the islands bringing periods of snow and blowing
snow from Cold Bay east on Tuesday, while the Pacific side should
see a quick transition from snow to rain as southerly flow advects
in bringing warmer air with it.

&&

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

At the onset of the forecast period there are a series of surface
lows from the Gulf Of Alaska to the North Pacific to the Sea Of
Okhotsk. At 12z Wednesday, the first surface low is south of
Middleton Island, the second low is south of Adak and the third
low is near Kamchatka. Additionally, at the surface there is a
dome of high pressure over Central and Eastern Siberia. The GFS,
ECMWF and the Canadian all showcase these synoptic features.
However, even at the onset of the forecast period, the precise
location of the surface low with each storm is not in sync. As
time evolves and these storms progress eastward, the model
divergence increases. There is high confidence that the southern
tier of Alaska will be in a wet pattern. But due to the vagaries
of the global models, there is a hefty amount of uncertainty
establishing the start/stop times for the precipitation shields
associated with each cyclone. The two biggest items of concern are
determining whether these events will be straight snow or a
wintry mix. And how much additional snow will fall across portions
of Prince William Sound and Passage Canal which has been dumped
on the past couple of weeks; at sea level as well as in the higher
elevations.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Heavy Freezing Spray 180 181.

&&

SYNOPSIS AND MODEL DISCUSSION...SEB
SOUTHCENTRAL ALASKA...TM
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...KVP
LONG TERM...PJS