Gale Warning 809, NWS Anchorage, AK

505 
FZAK52 PAFC 200049
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
349 PM AKST Wed Dec 19 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.

PKZ199-201330-
349 PM AKST Wed Dec 19 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
Veniaminof Volcano, located 22 nm north of Perryville, is currently 
active. 

A 975 mb low 235 nm southeast of Dutch Harbor will move to the 
North Pacific Thu morning. A 985 mb low will develop 210 nm west
of St. Paul Thu morning then it will dissipate Fri morning. A 982
mb North Pacific low will move to 150 nm southwest of Adak Fri 
morning then it will move to 110 nm east of Shemya at 980 mb Fri 
afternoon.

$$

PKZ150-201330-
South of the AK Peninsula Sitkinak to Castle Cape-
349 PM AKST Wed Dec 19 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 20 kt becoming SE after midnight. Seas 12 ft.
.THU...E wind 20 kt increasing to 30 kt mid morning. Seas 12 ft 
building to 17 ft by noon. Snow and rain.
.THU NIGHT...E wind 30 kt. Seas 18 ft. Rain.
.FRI AND FRI NIGHT...NE wind 30 kt. Seas 15 ft.
.SAT...NE wind 25 kt. Seas 13 ft.
.SUN...N wind 20 kt. Seas 11 ft.
.MON...NE wind 20 kt. Seas 8 ft.

$$

PKZ155-201330-
South of the AK Peninsula Castle Cape to Cape Sarichef-
349 PM AKST Wed Dec 19 2018

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 30 kt becoming SE 45 kt after midnight, Seas 13 
ft building to 20 ft after midnight. From the Shumagin Islands E, S 
wind 20 kt becoming SE 30 kt after midnight, Seas 12 ft. Snow and rain.
.THU...E wind 40 kt. Seas 22 ft. Rain and snow.
.THU NIGHT...NE wind 35 kt. Seas 19 ft.
.FRI...E wind 30 kt. Seas 14 ft.
.FRI NIGHT...E wind 25 kt. Seas 12 ft.
.SAT THROUGH SUN...NE wind 20 kt. Seas 12 ft.
.MON...E wind 30 kt. Seas 13 ft.

$$

PKZ160-201330-
Bristol Bay-
349 PM AKST Wed Dec 19 2018

...HEAVY FREEZING SPRAY WARNING TONIGHT...

.TONIGHT...NE wind 10 kt becoming E 20 kt after midnight. Seas in ice
free waters 3 ft. Heavy freezing spray after midnight.
.THU...NE wind 20 kt. Seas in ice free waters 4 ft. Freezing
spray.
.THU NIGHT...NE wind 20 kt. Seas in ice free waters 5 ft. Freezing spray.
.FRI...NE wind 15 kt. Seas in ice free waters 3 ft.
.FRI NIGHT...NE wind 20 kt. Seas in ice free waters 4 ft.
.SAT THROUGH SUN...NE wind 20 kt. Seas in ice free waters 4 ft.
.MON...NE wind 25 kt. Seas in ice free waters 4 ft.

$$

PKZ165-201330-
Port Heiden to Cape Sarichef-
349 PM AKST Wed Dec 19 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...E wind 30 kt. Seas 10 ft.
.THU...E wind 30 kt. Seas 10 ft.  Snow and rain.
.THU NIGHT...E wind 25 kt. Seas 10 ft.
.FRI AND FRI NIGHT...E wind 20 kt. Seas 8 ft.
.SAT THROUGH SUN...NE wind 20 kt. Seas 5 ft.
.MON...E wind 30 kt. Seas 7 ft.

$$

PKZ170-201330-
Cape Sarichef to Nikolski Bering Side-
349 PM AKST Wed Dec 19 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...SE wind increasing to 30 kt. Seas 10 ft. Snow and rain.
.THU...NE wind 30 kt. Seas 13 ft. Rain and snow.
.THU NIGHT...N wind 25 kt. Seas 12 ft. Rain.
.FRI AND FRI NIGHT...E wind 20 kt. Seas 9 ft.
.SAT...E wind 15 kt. Seas 5 ft.
.SUN...E wind 30 kt. Seas 7 ft.
.MON...E wind 30 kt. Seas 11 ft.

$$

PKZ171-201330-
Unalaska Bay-
349 PM AKST Wed Dec 19 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TONIGHT...SE wind 30 kt. Seas 5 ft. Snow and rain.
.THU...NE wind 25 kt. Seas 9 ft. Rain and snow.
.THU NIGHT...NE wind 15 kt becoming N after midnight. Seas 5 ft
subsiding to 3 ft after midnight. Rain and snow.
.FRI AND FRI NIGHT...E wind 20 kt. Seas 4 ft.
.SAT...E wind 10 kt. Seas 3 ft.
.SUN...E wind 25 kt. Seas 4 ft.
.MON...E wind 30 kt. Seas 5 ft.

$$

PKZ172-201330-
Cape Sarichef to Nikolski Pacific Side-
349 PM AKST Wed Dec 19 2018

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SE wind 40 kt. Seas 22 ft. Rain and snow.
.THU...NE wind 35 kt. Seas 20 ft. Rain.
.THU NIGHT...N wind 30 kt. Seas 15 ft.
.FRI...NE wind 20 kt. Seas 12 ft.
.FRI NIGHT...E wind 20 kt. Seas 9 ft.
.SAT...E wind 15 kt. Seas 12 ft.
.SUN...E wind 35 kt. Seas 11 ft.
.MON...SE wind 35 kt. Seas 16 ft.

$$

PKZ173-201330-
Nikolski to Seguam Island Bering Side-
349 PM AKST Wed Dec 19 2018

...GALE WARNING TONIGHT...

.TONIGHT...N wind 35 kt. Seas 14 ft. Snow and rain.
.THU...NW wind 30 kt. Seas 13 ft.
.THU NIGHT...W wind 15 kt. Seas 10 ft.
.FRI...E wind 15 kt. Seas 8 ft.
.FRI NIGHT...E wind 20 kt. Seas 7 ft.
.SAT...E wind 15 kt. Seas 7 ft.
.SUN...E wind 35 kt. Seas 10 ft.
.MON...E wind 35 kt. Seas 14 ft.

$$

PKZ174-201330-
Nikolski to Seguam Island Pacific Side-
349 PM AKST Wed Dec 19 2018

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...N wind 45 kt. Seas 21 ft. Rain and snow.
.THU...NW wind 45 kt becoming W 30 kt in the afternoon. Seas 19 ft.
.THU NIGHT...NW wind 20 kt in the evening becoming variable 10 kt.
Seas 13 ft.
.FRI AND FRI NIGHT...E wind 20 kt. Seas 10 ft.
.SAT...E wind 20 kt. Seas 12 ft.
.SUN...E wind 35 kt. Seas 13 ft.
.MON...E wind 35 kt. Seas 18 ft.

$$

PKZ175-201330-
Seguam Island to Adak Bering Side-
349 PM AKST Wed Dec 19 2018

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 35 kt. Seas 13 ft.
.THU...W wind 30 kt. Seas 13 ft.
.THU NIGHT...SW wind 15 kt becoming SE 25 kt after midnight. Seas
9 ft.
.FRI...E wind 35 kt. Seas 10 ft.
.FRI NIGHT...E wind 30 kt. Seas 9 ft.
.SAT...E wind 15 kt. Seas 7 ft.
.SUN...E wind 30 kt. Seas 10 ft.
.MON...NE wind 30 kt. Seas 15 ft.

$$

PKZ176-201330-
Seguam Island to Adak Pacific Side-
349 PM AKST Wed Dec 19 2018

...GALE WARNING TONIGHT AND THURSDAY NIGHT...

.TONIGHT...NW wind 40 kt. Seas 17 ft.
.THU...W wind 30 kt. Seas 16 ft.
.THU NIGHT...S wind 20 kt becoming SE 35 kt after midnight. Seas
11 ft.
.FRI...SE wind 35 kt. Seas 14 ft.
.FRI NIGHT...SE wind 25 kt. Seas 13 ft.
.SAT...E wind 15 kt. Seas 12 ft.
.SUN THROUGH MON...NE wind 30 kt. Seas 14 ft.

$$

PKZ177-201330-
Adak to Kiska-
349 PM AKST Wed Dec 19 2018

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 17 ft.
.THU...W wind 25 kt becoming S in the afternoon. Seas 13 ft.
.THU NIGHT...E wind 35 kt. Seas 12 ft.
.FRI...SE wind 40 kt. Seas 16 ft.
.FRI NIGHT...SE wind 25 kt. Seas 15 ft.
.SAT...E wind 20 kt. Seas 13 ft.
.SUN...NE wind 25 kt. Seas 9 ft.
.MON...N wind 30 kt. Seas 13 ft.

$$

PKZ178-201330-
Kiska to Attu-
349 PM AKST Wed Dec 19 2018

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...W wind 25 kt becoming SE after midnight. Seas 17 ft.
.THU...SE wind 30 kt becoming E 45 kt in the afternoon. Bering
side, seas 12 ft. Pacific side, seas 13 ft building to 19 ft in the 
afternoon. Rain showers.
.THU NIGHT...E wind 45 kt becoming S 20 kt after midnight Pacific
side. Seas 17 ft...subsiding to 10 ft after midnight Pacific side. 
Snow and rain.
.FRI...E wind 30 kt. Seas 15 ft.
.FRI NIGHT...E wind 35 kt. Seas 17 ft.
.SAT THROUGH MON...NE wind 25 kt. Seas 12 ft.

$$

PKZ179-201330-
Pribilof Islands Near Shore Waters-
349 PM AKST Wed Dec 19 2018

...GALE WARNING TONIGHT...

.TONIGHT...SE wind 35 kt. Seas 12 ft. Snow.
.THU...E wind 30 kt. Seas 11 ft. Snow.
.THU NIGHT...E wind 30 kt. Seas 12 ft. Snow.
.FRI AND FRI NIGHT...E wind 25 kt. Seas 9 ft.
.SAT...E wind 15 kt. Seas 7 ft.
.SUN...E wind 25 kt. Seas 6 ft.
.MON...E wind 35 kt. Seas 13 ft.

$$

PKZ180-201330-
Kuskokwim Delta and Etolin Strait-
349 PM AKST Wed Dec 19 2018

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TONIGHT...NE wind 25 kt. Seas in ice free waters 6 ft. Freezing spray.
.THU...E wind 25 kt. Seas in ice free waters 7 ft. Freezing spray.
.THU NIGHT...NE wind 20 kt. Seas in ice free waters 6 ft. Freezing spray.
.FRI...NE wind 15 kt. Seas in ice free waters 5 ft.
.FRI NIGHT...NE wind 20 kt. Seas in ice free waters 6 ft.
.SAT...NE wind 20 kt. Seas in ice free waters 5 ft.
.SUN...NE wind 15 kt. Seas in ice free waters 5 ft.
.MON...NE wind 25 kt. Seas in ice free waters 6 ft.

$$

PKZ181-201330-
North and West of Nunivak Island-
349 PM AKST Wed Dec 19 2018

...HEAVY FREEZING SPRAY WARNING TONIGHT AND THURSDAY NIGHT...
...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TONIGHT...E wind 25 kt. Seas 7 ft. Heavy freezing spray.
.THU...NE wind 25 kt. Seas 7 ft. Freezing spray.
.THU NIGHT...NE wind 20 kt. Seas 6 ft. Heavy freezing spray.
.FRI...NE wind 20 kt. Seas 5 ft.
.FRI NIGHT...NE wind 25 kt. Seas 7 ft.
.SAT...NE wind 25 kt. Seas 7 ft.
.SUN...NE wind 20 kt. Seas 6 ft.
.MON...NE wind 25 kt. Seas 6 ft.

$$

PKZ185-201330-
Saint Matthew Island Waters-
349 PM AKST Wed Dec 19 2018

...GALE WARNING THURSDAY...
...HEAVY FREEZING SPRAY WARNING TONIGHT...

.TONIGHT...E wind 30 kt. Seas 15 ft. Heavy freezing spray.
.THU...NE wind 35 kt. Seas 15 ft. Freezing spray.
.THU NIGHT...NE wind 30 kt. Seas 14 ft. Freezing spray.
.FRI...NE wind 30 kt. Seas 12 ft.
.FRI NIGHT...NE wind 25 kt. Seas 11 ft.
.SAT THROUGH SUN...NE wind 25 kt. Seas 10 ft.
.MON...NE wind 30 kt. Seas 9 ft.

$$

942 
FZAK52 PAFC 201301
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
401 AM AKST Thu Dec 20 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.

PKZ199-210200-
401 AM AKST Thu Dec 20 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

Veniaminof Volcano, located 22 nm north of Perryville, is 
currently active. 

A 970 mb low 260 nm southeast of Dutch Harbor moves into the Gulf
Thu night. A front approaches the western Aleutians Thu evening 
and generates a 982 mb low 270 nm southwest of Adak Thu evening. The
low moves 110 nm southwest of Shemya at 970 mb Fri night.


$$

PKZ150-210200-
South of the AK Peninsula Sitkinak to Castle Cape-
401 AM AKST Thu Dec 20 2018

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...E wind 30 kt. Seas 10 ft building to 17 ft in the
afternoon. Snow and rain.
.TONIGHT...E wind 30 kt. Seas 18 ft. Rain.
.FRI...NE wind 30 kt. Seas 16 ft.
.FRI NIGHT...NE wind 30 kt. Seas 13 ft.
.SAT...NE wind 25 kt. Seas 11 ft.
.SUN...N wind 20 kt. Seas 8 ft.
.MON...E wind 30 kt. Seas 11 ft.

$$

PKZ155-210200-
South of the AK Peninsula Castle Cape to Cape Sarichef-
401 AM AKST Thu Dec 20 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...E wind 40 kt. Seas 19 ft. Rain and snow.
.TONIGHT...NE wind 35 kt. Seas 19 ft.
.FRI...NE wind 30 kt. Seas 14 ft.
.FRI NIGHT...E wind 25 kt. Seas 11 ft.
.SAT...NE wind 20 kt. Seas 9 ft.
.SUN...N wind 15 kt. Seas 7 ft.
.MON...SE wind 30 kt. Seas 19 ft.

$$

PKZ160-210200-
Bristol Bay-
401 AM AKST Thu Dec 20 2018

...HEAVY FREEZING SPRAY WARNING TODAY...

.TODAY...NE wind 20 kt. Seas in ice free waters 5 ft. Heavy
freezing spray.
.TONIGHT...NE wind 20 kt. Seas in ice free waters 5 ft. Freezing
spray.
.FRI...NE wind 15 kt. Seas in ice free waters 3 ft. Freezing
spray.
.FRI NIGHT...NE wind 20 kt. Seas in ice free waters 4 ft.
.SAT...NE wind 20 kt. Seas in ice free waters 4 ft.
.SUN...N wind 10 kt. Seas in ice free waters 3 ft.
.MON...E wind 35 kt. Seas in ice free waters 7 ft.

$$

PKZ165-210200-
Port Heiden to Cape Sarichef-
401 AM AKST Thu Dec 20 2018

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...E wind 30 kt. Seas 11 ft. Freezing spray in the morning.
Snow.
.TONIGHT...E wind 25 kt. Seas 10 ft.
.FRI...E wind 20 kt. Seas 8 ft.
.FRI NIGHT...E wind 20 kt. Seas 6 ft.
.SAT...NE wind 20 kt. Seas 5 ft.
.SUN...NE wind 15 kt. Seas 4 ft.
.MON...E wind 30 kt. Seas 11 ft.

$$

PKZ170-210200-
Cape Sarichef to Nikolski Bering Side-
401 AM AKST Thu Dec 20 2018

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...NE wind 30 kt. Seas 11 ft. Rain and snow.
.TONIGHT...N wind 25 kt. Seas 12 ft. Rain.
.FRI...NE wind 20 kt. Seas 10 ft.
.FRI NIGHT...E wind 20 kt. Seas 7 ft.
.SAT...E wind 15 kt. Seas 5 ft.
.SUN...E wind 30 kt. Seas 7 ft.
.MON...E wind 35 kt. Seas 12 ft.

$$

PKZ171-210200-
Unalaska Bay-
401 AM AKST Thu Dec 20 2018

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NE wind 25 kt. Seas 8 ft. Rain and snow.
.TONIGHT...NE wind 15 kt becoming N after midnight. Seas 5 ft
subsiding to 3 ft after midnight. Rain and snow.
.FRI...NE wind 15 kt. Seas 5 ft subsiding to 2 ft in the
afternoon.
.FRI NIGHT...E wind 15 kt. Seas 3 ft.
.SAT...E wind 10 kt. Seas 3 ft.
.SUN...E wind 20 kt. Seas 3 ft.
.MON...SE wind 30 kt. Seas 5 ft.

$$

PKZ172-210200-
Cape Sarichef to Nikolski Pacific Side-
401 AM AKST Thu Dec 20 2018

...GALE WARNING TODAY...

.TODAY...NE wind 35 kt. Seas 18 ft. Widespread rain showers.
.TONIGHT...N wind 30 kt. Seas 15 ft.
.FRI...N wind 20 kt. Seas 12 ft.
.FRI NIGHT...E wind 20 kt. Seas 9 ft.
.SAT...NE wind 20 kt. Seas 10 ft.
.SUN...E wind 35 kt. Seas 12 ft.
.MON...SE wind 35 kt. Seas 18 ft.

$$

PKZ173-210200-
Nikolski to Seguam Island Bering Side-
401 AM AKST Thu Dec 20 2018

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...NW wind 30 kt. Seas 12 ft.
.TONIGHT...W wind 15 kt. Seas 10 ft.
.FRI...E wind 20 kt. Seas 8 ft.
.FRI NIGHT...E wind 20 kt. Seas 7 ft.
.SAT...E wind 15 kt. Seas 7 ft.
.SUN THROUGH MON...E wind 35 kt. Seas 19 ft.

$$

PKZ174-210200-
Nikolski to Seguam Island Pacific Side-
401 AM AKST Thu Dec 20 2018

...GALE WARNING TODAY...

.TODAY...NW wind 45 kt becoming W 30 kt in the afternoon. 
Seas 18 ft.
.TONIGHT...NW wind 20 kt in the evening becoming variable 10 kt.
Seas 13 ft.
.FRI...E wind 20 kt. Seas 9 ft.
.FRI NIGHT...E wind 20 kt. Seas 12 ft.
.SAT...SE wind 15 kt. Seas 13 ft.
.SUN THROUGH MON...SE wind 35 kt. Seas 21 ft.

$$

PKZ175-210200-
Seguam Island to Adak Bering Side-
401 AM AKST Thu Dec 20 2018

...GALE WARNING FRIDAY...

.TODAY...W wind 30 kt. Seas 12 ft.
.TONIGHT...SW wind 15 kt becoming SE 25 kt after midnight. 
Seas 9 ft.
.FRI...E wind 35 kt. Seas 9 ft.
.FRI NIGHT...E wind 25 kt. Seas 8 ft.
.SAT...SE wind 20 kt. Seas 7 ft.
.SUN...E wind 35 kt. Seas 18 ft.
.MON...NE wind 35 kt. Seas 18 ft.

$$

PKZ176-210200-
Seguam Island to Adak Pacific Side-
401 AM AKST Thu Dec 20 2018

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...W wind 30 kt. Seas 15 ft.
.TONIGHT...S wind 20 kt becoming SE 35 kt after midnight. 
Seas 11 ft.
.FRI...E wind 35 kt. Seas 14 ft.
.FRI NIGHT...SE wind 20 kt. Seas 14 ft.
.SAT...SE wind 20 kt. Seas 15 ft.
.SUN...SE wind 30 kt. Seas 23 ft.
.MON...N wind 30 kt. Seas 23 ft.

$$

PKZ177-210200-
Adak to Kiska-
401 AM AKST Thu Dec 20 2018

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...W wind 25 kt becoming S in the afternoon. Seas 13 ft.
.TONIGHT...E wind 35 kt. Seas 12 ft.
.FRI...E wind 40 kt. Seas 17 ft. Snow showers.
.FRI NIGHT...SE wind 40 kt. Seas 16 ft.
.SAT...SE wind 20 kt. Seas 14 ft.
.SUN...NE wind 25 kt. Seas 12 ft.
.MON...N wind 25 kt. Seas 16 ft.

$$

PKZ178-210200-
Kiska to Attu-
401 AM AKST Thu Dec 20 2018

...GALE WARNING THROUGH FRIDAY...

.TODAY...SE wind 30 kt becoming E 45 kt in the afternoon. Seas
15 ft. Rain showers.
.TONIGHT...Bering side, E wind 45 kt. Pacific side, SE wind 45 kt
diminishing to 20 kt after midnight. Seas 17 ft. Widespread snow
and rain showers.
.FRI...E wind 30 kt increasing to 40 kt in the afternoon. Seas
16 ft. Snow showers and rain showers.
.FRI NIGHT...E wind 40 kt. Seas 18 ft.
.SAT...E wind 30 kt. Seas 16 ft.
.SUN...NE wind 25 kt. Seas 11 ft.
.MON...N wind 30 kt. Seas 22 ft.

$$

PKZ179-210200-
Pribilof Islands Near Shore Waters-
401 AM AKST Thu Dec 20 2018

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...E wind 30 kt. Seas 12 ft. Snow.
.TONIGHT...E wind 30 kt. Seas 12 ft. Snow.
.FRI...E wind 25 kt. Seas 10 ft. Freezing spray.
.FRI NIGHT...E wind 20 kt. Seas 7 ft.
.SAT...E wind 15 kt. Seas 5 ft.
.SUN...E wind 20 kt. Seas 6 ft.
.MON...E wind 35 kt. Seas 16 ft.

$$

PKZ180-210200-
Kuskokwim Delta and Etolin Strait-
401 AM AKST Thu Dec 20 2018

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

.TODAY...E wind 25 kt. Seas in ice free waters 6 ft. Heavy
freezing spray.
.TONIGHT...NE wind 20 kt. Seas in ice free waters 6 ft. Freezing
spray.
.FRI...NE wind 15 kt. Seas in ice free waters 5 ft. Freezing
spray.
.FRI NIGHT...NE wind 20 kt. Seas in ice free waters 5 ft.
.SAT...NE wind 20 kt. Seas in ice free waters 4 ft.
.SUN...NE wind 15 kt. Seas in ice free waters 3 ft.
.MON...E wind 35 kt. Seas in ice free waters 12 ft.

$$

PKZ181-210200-
North and West of Nunivak Island-
401 AM AKST Thu Dec 20 2018

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

.TODAY...NE wind 25 kt. Seas in ice free waters 7 ft. Heavy
freezing spray.
.TONIGHT...NE wind 20 kt. Seas in ice free waters 6 ft. Heavy
freezing spray.
.FRI...NE wind 20 kt. Seas in ice free waters 5 ft. Freezing
spray.
.FRI NIGHT...NE wind 25 kt. Seas in ice free waters 5 ft.
.SAT...NE wind 25 kt. Seas in ice free waters 5 ft.
.SUN...NE wind 15 kt. Seas in ice free waters 4 ft.
.MON...E wind 35 kt. Seas in ice free waters 10 ft.

$$

PKZ185-210200-
Saint Matthew Island Waters-
401 AM AKST Thu Dec 20 2018

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

.TODAY...NE wind 35 kt. Seas 14 ft. Heavy freezing spray.
.TONIGHT...NE wind 30 kt. Seas 14 ft. Freezing spray.
.FRI...NE wind 25 kt E of Saint Matthew Island... NE 30 kt W of
Saint Matthew Island. Seas 12 ft. Freezing spray.
.FRI NIGHT...NE wind 30 kt. Seas 9 ft.
.SAT THROUGH SUN...NE wind 25 kt. Seas 8 ft.
.MON...NE wind 35 kt. Seas 19 ft.

$$

730 
FZAK52 PAFC 210035
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
335 PM AKST Thu Dec 20 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.

PKZ199-211315-
335 PM AKST Thu Dec 20 2018
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 973 mb low 280 nm southeast of Sand Point Thu afternoon moves 
to 280 nm southeast of Sitkinak at 984 mb by Fri afternoon. A
front moves across the western Aleutians and Bering through 
Saturday night. 

$$

PKZ150-211315-
South of the AK Peninsula Sitkinak to Castle Cape-
335 PM AKST Thu Dec 20 2018

...GALE WARNING TONIGHT AND FRIDAY NIGHT...

.TONIGHT...E wind 35 kt. Seas 18 ft. Rain.
.FRI...NE wind 30 kt. Seas 16 ft.
.FRI NIGHT...NE wind 35 kt. Seas 15 ft.
.SAT AND SAT NIGHT...N wind 30 kt. Seas 10 ft.
.SUN...NW wind 20 kt. Seas 8 ft.
.MON...E wind 30 kt. Seas 11 ft.
.TUE...S wind 30 kt. Seas 15 ft.

$$

PKZ155-211315-
South of the AK Peninsula Castle Cape to Cape Sarichef-
335 PM AKST Thu Dec 20 2018

...GALE WARNING TONIGHT...

.TONIGHT...NE wind 35 kt. Seas 19 ft.
.FRI...NE wind 30 kt diminishing to 20 kt in the afternoon. Seas
14 ft.
.FRI NIGHT...N wind 25 kt except NE 30 kt from the Shumagin
Islands E. Seas 12 ft.
.SAT...N wind 25 kt. Seas 10 ft.
.SAT NIGHT...N wind 15 kt. Seas 10 ft.
.SUN...NW wind 20 kt. Seas 7 ft.
.MON...SE wind 30 kt. Seas 19 ft.
.TUE...S wind 25 kt. Seas 19 ft.

$$

PKZ160-211315-
Bristol Bay-
335 PM AKST Thu Dec 20 2018

...SMALL CRAFT ADVISORY FRIDAY NIGHT...

.TONIGHT...NE wind 20 kt. Seas in ice free waters 4 ft. Freezing spray.
.FRI...NE wind 15 kt. Seas in ice free waters 3 ft. Freezing spray.
.FRI NIGHT...NE wind 25 kt. Seas in ice free waters 5 ft. Freezing spray.
.SAT...NE wind 25 kt. Seas in ice free waters 5 ft.
.SAT NIGHT...NE wind 20 kt. Seas in ice free waters 4 ft.
.SUN...N wind 15 kt. Seas in ice free waters 3 ft.
.MON THROUGH TUE...SE wind 35 kt. Seas in ice free waters 7 ft.

$$

PKZ165-211315-
Port Heiden to Cape Sarichef-
335 PM AKST Thu Dec 20 2018

...SMALL CRAFT ADVISORY TONIGHT AND FRIDAY NIGHT...

.TONIGHT...NE wind 25 kt. Seas 10 ft.
.FRI...NE wind 20 kt. Seas 7 ft.
.FRI NIGHT...NE wind 25 kt. Seas 8 ft.
.SAT...NE wind 20 kt. Seas 7 ft.
.SAT NIGHT...NE wind 15 kt. Seas 6 ft.
.SUN...N wind 15 kt. Seas 4 ft.
.MON...E wind 30 kt. Seas 11 ft.
.TUE...SE wind 30 kt. Seas 11 ft.

$$

PKZ170-211315-
Cape Sarichef to Nikolski Bering Side-
335 PM AKST Thu Dec 20 2018

...SMALL CRAFT ADVISORY THROUGH FRIDAY NIGHT...

.TONIGHT...N wind 25 kt. Seas 11 ft. Rain.
.FRI...NE wind 20 kt. Seas 9 ft.
.FRI NIGHT...NE wind 20 kt. Seas 8 ft.
.SAT AND SAT NIGHT...NE wind 15 kt. Seas 6 ft.
.SUN...NE wind 30 kt. Seas 7 ft.
.MON...E wind 35 kt. Seas 12 ft.
.TUE...S wind 25 kt. Seas 9 ft.

$$

PKZ171-211315-
Unalaska Bay-
335 PM AKST Thu Dec 20 2018

.TONIGHT...NE wind 15 kt. Seas 5 ft. Rain and snow.
.FRI...NE wind 10 kt. Seas 3 ft.
.FRI NIGHT...NE wind 10 kt increasing to 15 kt after midnight.
Seas 3 ft building to 5 ft after midnight.
.SAT AND SAT NIGHT...N wind 10 kt. Seas 3 ft.
.SUN...N wind 20 kt. Seas 3 ft.
.MON...SE wind 30 kt. Seas 5 ft.
.TUE...S wind 20 kt. Seas 2 ft.

$$

PKZ172-211315-
Cape Sarichef to Nikolski Pacific Side-
335 PM AKST Thu Dec 20 2018

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TONIGHT...N wind 30 kt diminishing to 20 kt after midnight. Seas
16 ft.
.FRI...N wind 15 kt. Seas 11 ft.
.FRI NIGHT...NE wind 15 kt. Seas 7 ft.
.SAT AND SAT NIGHT...N wind 15 kt. Seas 9 ft.
.SUN...NE wind 35 kt. Seas 12 ft.
.MON...SE wind 35 kt. Seas 18 ft.
.TUE...SW wind 25 kt. Seas 16 ft.

$$

PKZ173-211315-
Nikolski to Seguam Island Bering Side-
335 PM AKST Thu Dec 20 2018

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TONIGHT...W wind 20 kt in the evening becoming variable 10 kt.
Seas 10 ft.
.FRI...E wind 15 kt. Seas 8 ft.
.FRI NIGHT...E wind 20 kt. Seas 7 ft.
.SAT AND SAT NIGHT...E wind 15 kt. Seas 7 ft.
.SUN THROUGH MON...E wind 35 kt. Seas 19 ft.
.TUE...SW wind 20 kt. Seas 9 ft.

$$

PKZ174-211315-
Nikolski to Seguam Island Pacific Side-
335 PM AKST Thu Dec 20 2018

...SMALL CRAFT ADVISORY THROUGH FRIDAY NIGHT...

.TONIGHT...W wind 25 kt in the evening becoming variable 10 kt.
Seas 13 ft.
.FRI...E wind 20 kt. Seas 9 ft.
.FRI NIGHT...E wind 15 kt. Seas 11 ft.
.SAT AND SAT NIGHT...Variable wind 10 kt. Seas 11 ft.
.SUN THROUGH MON...SE wind 35 kt. Seas 21 ft.
.TUE...SW wind 25 kt. Seas 16 ft.

$$

PKZ175-211315-
Seguam Island to Adak Bering Side-
335 PM AKST Thu Dec 20 2018

...GALE WARNING FRIDAY...

.TONIGHT...SW wind 15 kt becoming SE 25 kt after midnight. Seas
8 ft.
.FRI...E wind 35 kt. Seas 9 ft.
.FRI NIGHT...SE wind 30 kt diminishing to 20 kt after midnight.
Seas 8 ft.
.SAT AND SAT NIGHT...SE wind 20 kt. Seas 7 ft.
.SUN THROUGH MON...NE wind 35 kt. Seas 18 ft.
.TUE...NW wind 20 kt. Seas 10 ft.

$$

PKZ176-211315-
Seguam Island to Adak Pacific Side-
335 PM AKST Thu Dec 20 2018

...GALE WARNING FRIDAY...

.TONIGHT...S wind 20 kt becoming SE 30 kt after midnight. Seas
11 ft.
.FRI...SE wind 35 kt. Seas 12 ft.
.FRI NIGHT...S wind 25 kt diminishing to 15 kt after midnight.
Seas 13 ft.
.SAT...SE wind 20 kt. Seas 13 ft.
.SAT NIGHT...SE wind 25 kt. Seas 12 ft.
.SUN...SE wind 30 kt. Seas 23 ft.
.MON...N wind 30 kt. Seas 23 ft.
.TUE...W wind 20 kt. Seas 14 ft.

$$

PKZ177-211315-
Adak to Kiska-
335 PM AKST Thu Dec 20 2018

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...SE wind 30 kt becoming E 45 kt after midnight. Seas
13 ft.
.FRI...E wind 45 kt. Seas 15 ft. Snow showers.
.FRI NIGHT...S wind 30 kt diminishing to 20 kt after midnight.
Seas 14 ft.
.SAT...SE wind 25 kt. Seas 14 ft.
.SAT NIGHT...SE wind 30 kt. Seas 12 ft.
.SUN...E wind 35 kt. Seas 12 ft.
.MON...N wind 25 kt. Seas 16 ft.
.TUE...NW wind 20 kt. Seas 11 ft.

$$

PKZ178-211315-
Kiska to Attu-
335 PM AKST Thu Dec 20 2018

...STORM WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...E wind 50 kt diminishing to 40 kt after midnight. Seas 17
ft. Snow and rain.
.FRI...E wind 40 kt increasing to 50 kt in the afternoon. Seas
18 ft. Snow showers.
.FRI NIGHT...E wind 50 kt becoming SE 40 kt after midnight. Seas 19 ft.
.SAT...E wind 35 kt. Seas 16 ft.
.SAT NIGHT...E wind 25 kt. Seas 11 ft.
.SUN...NE wind 25 kt. Seas 11 ft.
.MON...N wind 30 kt. Seas 22 ft.
.TUE...N wind 20 kt. Seas 22 ft.

$$

PKZ179-211315-
Pribilof Islands Near Shore Waters-
335 PM AKST Thu Dec 20 2018

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TONIGHT...E wind 30 kt. Seas 12 ft. Snow. Freezing spray.
.FRI...E wind 25 kt. Seas 9 ft. Freezing spray.
.FRI NIGHT...NE wind 20 kt. Seas 7 ft. Freezing spray.
.SAT AND SAT NIGHT...NE wind 20 kt. Seas 7 ft.
.SUN...NE wind 20 kt. Seas 6 ft.
.MON...E wind 35 kt. Seas 16 ft.
.TUE...SE wind 30 kt. Seas 15 ft.

$$

PKZ180-211315-
Kuskokwim Delta and Etolin Strait-
335 PM AKST Thu Dec 20 2018

.TONIGHT...NE wind 20 kt. Seas in ice free waters 6 ft. Freezing
spray.
.FRI...NE wind 15 kt. Seas in ice free waters 5 ft. Freezing
spray.
.FRI NIGHT...NE wind 20 kt. Seas in ice free waters 5 ft. Freezing
spray.
.SAT AND SAT NIGHT...N wind 20 kt. Seas in ice free waters 5 ft.
.SUN...N wind 20 kt. Seas in ice free waters 3 ft.
.MON THROUGH TUE...E wind 35 kt. Seas in ice free waters 12 ft.

$$

PKZ181-211315-
North and West of Nunivak Island-
335 PM AKST Thu Dec 20 2018

...HEAVY FREEZING SPRAY WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...NE wind 20 kt. Seas in ice free waters 6 ft. Heavy
freezing spray.
.FRI...NE wind 15 kt. Seas in ice free waters 4 ft. Heavy freezing
spray.
.FRI NIGHT...NE wind 20 kt. Seas in ice free waters 4 ft. Heavy
freezing spray.
.SAT AND SAT NIGHT...NE wind 20 kt. Seas in ice free waters 5 ft.
.SUN...NE wind 20 kt. Seas in ice free waters 4 ft.
.MON THROUGH TUE...E wind 35 kt. Seas in ice free waters 11 ft.

$$

PKZ185-211315-
Saint Matthew Island Waters-
335 PM AKST Thu Dec 20 2018

...SMALL CRAFT ADVISORY THROUGH FRIDAY NIGHT...

.TONIGHT...NE wind 25 kt E of Saint Matthew Island...NE 30 kt W of 
Saint Matthew Island. Seas 13 ft. Freezing spray.
.FRI...NE wind 20 kt E of Saint Matthew Island... NE 25 kt W of
Saint Matthew Island. Seas 10 ft. Freezing spray.
.FRI NIGHT...NE wind 15 kt E of Saint Matthew Island... NE 25 kt W
of Saint Matthew Island. Seas 8 ft. Freezing spray.
.SAT...NE wind 25 kt. Seas 7 ft.
.SAT NIGHT...NE wind 20 kt. Seas 6 ft.
.SUN...NE wind 25 kt. Seas 7 ft.
.MON...NE wind 35 kt. Seas 19 ft.
.TUE...NE wind 40 kt. Seas 20 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
408 PM AKST Tue Dec 18 2018

.ANALYSIS AND UPPER LEVELS...

A negatively tilted long wave trough spreads over western Alaska,
the Alaska Peninsula, eastern Aleutians and into the western
Gulf of Alaska. This trough has an upper-level low anchored at
the base near Kodiak Island. Northwesterly flow on the backside of
the trough is creating gale force and some storm force winds
through the gaps in the Alaska Peninsula and Kamishak Bay. Cold
air advection is continuing over the Bering and western mainland.
Offshore flow is continuing dry conditions over western mainland
which is keeping the area dry. A compact surface low is passing
through the central Bering and moving over the Alaska Peninsula
near Cold Bay. The low is brining gusty winds and snowfall to the
Pribilofs and the central Aleutians. A front is moving over the
western Aleutians which is consistent with an arm of the jet that
is pushing over the western and central Aleutians. While most of
the jet is flowing well below the Aleutian chain and the Gulf, a
smaller, isolated segment is over the Kenai Peninsula to the
western Alaska Range. This segment of the jet is associated with a
deformation zone over the Kenai Peninsula. Southerly flow is
brining moisture to Southcentral saturating the atmosphere. A meso
low has developed in Prince William Sound today. The combination
of this low with the deformation band is allowing for snow showers
to persist through Southcentral.

&&

.MODEL DISCUSSION...
Models all have a similar synoptic scale pattern through Thursday.
Differences are mainly in the placement of individual pressure
centers. So they have similar handling of Gulf winds and wind
fields over the Bering Sea. For now will be leaning toward the
high resolution NAMNEST to capture local effect winds.

&&

.AVIATION...
PANC...periods of MVFR/IFR visibilities and ceilings are expected
with snow showers through this evening. Generally expect snow to
diminish but some MVFR ceilings will linger into Wednesday
morning.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
The band that brought snow across Anchorage today has pushed off
to the west and is draped across northern Kenai Peninsula and
southern Susitna Valley. Tonight the center of the main band
should stay primarily over the same area but spread out and bring
lighter snow to locations over the western Kenai and Anchorage.
However, guidance has been struggling to handle this feature and
the possibility remains that the band could push back over
Anchorage and bring more snow than forecasted. Early Wednesday
morning the front that is approaching the north Gulf coast will
push into Southcentral Alaska spreading more snow to most
locations with the heaviest along the coast and lighter amounts
inland. The front will have pushed through by Wednesday evening
and then snow will diminish throughout Southcentral Alaska through
Thursday allowing for colder temperatures across the area.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
Dry and cold conditions continue across much of the Southwest with
cold advection and offshore flow. Temperatures should continue to
run well below zero in the interior. Temperatures will likely be
warmer over the Delta as low stratus and some flurries continue
through tonight. An occluded front currently over the western
Aleutians will weaken by the time it arrives near the west coast,
but may still bring a shot a snow to the immediate coast late
Wednesday and Thursday.

&&

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

A fairly compact surface low moves rapidly south across the AK Pen
this afternoon and should enhance the northwesterly flow over the
western AK Pen briefly this evening. The surface low will leave an
elongating deformation zone in its wake allow for moderate to
heavy snowfall to continue overnight. In addition to gusty winds
reducing visibility, snow accumulations will also be great enough
for a Winter Weather Advisory. Please see the advisory for more
details. The strong northwesterly flow across the AK Pen will
shift east tonight with ridging building in to the west ahead of
the occluded front. The gale force front with with some force
gusts will weaken late tonight through Wednesday as a frontal wave
develops along its boundary south of the Aleutians and moves
east. This will tend to shear the front apart allowing the
northern portion of the front to weakening as it tracks toward the
Southwest Mainland and keeping fairly good precipitation
potential south along along the Aleutians in the vicinity of the
developing wave.

.MARINE...
Gusts out of bays and passes between False Pass and Sitkinak
Island will continue through the overnight hours. Strong cold
advection will push gusts to the 50-55 kt range. This winds will
quickly abate on by late morning Wed as the flow becomes more
westerly.

&&

.LONG TERM FORECAST (Days 3 through 7)...
Friday's setup is looking similar to the model forecasts
yesterday with a low south of the AKPEN moving into the southern
Gulf, bringing gusty offshore winds to the north Gulf coast and
favorably aligned terrain gaps through Saturday afternoon. A
trough rotating through the Gulf Saturday night and Sunday may
bring some precipitation to coastal areas then lift north on
Monday bringing a chance of snow to the Copper River Basin.

There is more confidence with a front moving over the western
Aleutians and Bering on Friday due to better model agreement
today. Strong winds will remain possible at times in the western
Bering through Sunday. A deep low on Sunday will move north over
the western and central Aleutians, which models have come in
better agreement on since yesterday. Better confidence in this low
brings increasing chances for Gales over the Aleutians and Bering
through early next week. The exact intensity and placement of
this low has decent agreement, but is less certain as it moves
eastward through Tuesday. Stay tuned over the next few days as
this feature continues to be looked at.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Winter Weather Advisory 181.
MARINE...Gale 131 132 137 138 150 155 165 170 175 176 177
		 Storm 130.
		 Heavy Freezing Spray 130 138 160 180 181 185.

&&

SYNOPSIS AND MODEL DISCUSSION...RA/BC
SOUTHCENTRAL ALASKA...DK
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...MSO
LONG TERM...AH/JR