Brisk Wind Advisory 22, NWS Anchorage, AK

518 
FZAK52 PAFC 220031
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
331 PM AKST TUE FEB 21 2017

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.

PKZ199-221315-
331 PM AKST TUE FEB 21 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
BOGOSLOF VOLCANO 53 NM WEST OF DUTCH HARBOR REMAINS ACTIVE.
A 963 MB LOW 175 NM SOUTHWEST OF SHEMYA WILL MOVE TO 200 NM WEST
OF SHEMYA AT 955 MB WED AFTERNOON...THEN MOVE TO 375 NM NORTH OF
SHEMYA AT 974 MB THU AFTERNOON. AN ASSOCIATED FRONT OVER THE
WESTERN ALEUTIANS WILL MOVE TO THE CENTRAL BERING WED AND MOVE
INLAND OVER SOUTHWEST ALASKA THU MORNING.

$$

PKZ150-221315-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
331 PM AKST TUE FEB 21 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...S WIND 30 KT. SEAS 15 FT. RAIN AND SNOW.
.WED...W WIND 20 KT. SEAS 11 FT.
.WED NIGHT...SW WIND 20 KT. SEAS 9 FT.
.THU AND THU NIGHT...S WIND 25 KT. SEAS 13 FT.
.FRI...SW WIND 25 KT. SEAS 14 FT.
.SAT THROUGH SUN...W WIND 25 KT. SEAS 9 FT.

$$

PKZ155-221315-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
331 PM AKST TUE FEB 21 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 15 FT.
.WED...S WIND 30 KT EXCEPT SW 20 KT FROM THE SHUMAGIN ISLANDS E.
SEAS 13 FT.
.WED NIGHT...S WIND 30 KT EXCEPT S 25 KT FROM THE SHUMAGIN ISLANDS
E. SEAS 16 FT.
.THU AND THU NIGHT...S WIND 30 KT. SEAS 18 FT.
.FRI...SW WIND 25 KT. SEAS 16 FT.
.SAT THROUGH SUN...SW WIND 25 KT. SEAS 10 FT.

$$

PKZ160-221315-
BRISTOL BAY-
331 PM AKST TUE FEB 21 2017

...BRISK WIND ADVISORY TONIGHT...

.TONIGHT...S WIND 25 KT.
.WED...S WIND 20 KT.
.WED NIGHT...SE WIND 20 KT.
.THU AND THU NIGHT...SE WIND 25 KT.
.FRI...SW WIND 15 KT.
.SAT...S WIND 25 KT.
.SUN...SW WIND 20 KT.

$$

PKZ165-221315-
PORT HEIDEN TO CAPE SARICHEF-
331 PM AKST TUE FEB 21 2017

...GALE WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...S WIND 30 KT EXCEPT SW 20 KT FROM PORT MOLLER E. SEAS
9 FT.
.WED...S WIND 35 KT EXCEPT S 25 KT FROM PORT MOLLER E. SEAS 9 FT.
.WED NIGHT...S WIND 40 KT EXCEPT SE 30 KT FROM PORT MOLLER E. SEAS
11 FT.
.THU...S WIND 30 KT. SEAS 10 FT.
.THU NIGHT...SW WIND 20 KT. SEAS 7 FT.
.FRI THROUGH SAT...S WIND 30 KT. SEAS 12 FT.
.SUN...SW WIND 25 KT. SEAS 11 FT.

$$

PKZ170-221315-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
331 PM AKST TUE FEB 21 2017

...GALE WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...S WIND 30 KT. SEAS 11 FT.
.WED...S WIND 40 KT. SEAS 14 FT.
.WED NIGHT...S WIND 40 KT. SEAS 16 FT. RAIN.
.THU...SW WIND 25 KT. SEAS 10 FT.
.THU NIGHT...SW WIND 20 KT. SEAS 11 FT.
.FRI THROUGH SAT...S WIND 35 KT. SEAS 14 FT.
.SUN...SW WIND 25 KT. SEAS 12 FT.

$$

PKZ171-221315-
UNALASKA BAY-
331 PM AKST TUE FEB 21 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...S WIND 25 KT. SEAS 4 FT.
.WED...S WIND 30 KT. SEAS 5 FT.
.WED NIGHT...SE WIND 30 KT. SEAS 5 FT. RAIN AND SNOW.
.THU...SW WIND 15 KT. SEAS 2 FT.
.THU NIGHT...W WIND 10 KT. SEAS 2 FT.
.FRI...S WIND 20 KT. SEAS 3 FT.
.SAT...S WIND 25 KT. SEAS 4 FT.
.SUN...S WIND 20 KT. SEAS 2 FT.

$$

PKZ172-221315-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
331 PM AKST TUE FEB 21 2017

...GALE WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...SW WIND 30 KT. SEAS 16 FT.
.WED...S WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS
20 FT.
.WED NIGHT...S WIND 40 KT. SEAS 24 FT. RAIN.
.THU...SW WIND 30 KT. SEAS 20 FT.
.THU NIGHT...W WIND 15 KT. SEAS 18 FT.
.FRI THROUGH SAT...S WIND 30 KT. SEAS 15 FT.
.SUN...SW WIND 25 KT. SEAS 13 FT.

$$

PKZ173-221315-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
331 PM AKST TUE FEB 21 2017

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...S WIND 35 KT. SEAS 13 FT.
.WED...S WIND 45 KT. SEAS 21 FT. RAIN.
.WED NIGHT...S WIND 40 KT BECOMING SW 25 KT AFTER MIDNIGHT. SEAS
18 FT.
.THU AND THU NIGHT...SW WIND 25 KT. SEAS 14 FT.
.FRI...S WIND 40 KT. SEAS 16 FT.
.SAT...S WIND 35 KT. SEAS 16 FT.
.SUN...SW WIND 25 KT. SEAS 11 FT.

$$

PKZ174-221315-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
331 PM AKST TUE FEB 21 2017

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...S WIND 35 KT. SEAS 19 FT.
.WED...S WIND 45 KT. SEAS 27 FT. RAIN.
.WED NIGHT...S WIND 45 KT BECOMING SW 20 KT AFTER MIDNIGHT. SEAS
25 FT. RAIN.
.THU AND THU NIGHT...SW WIND 20 KT. SEAS 20 FT.
.FRI THROUGH SAT...S WIND 35 KT. SEAS 17 FT.
.SUN...S WIND 25 KT. SEAS 15 FT.

$$

PKZ175-221315-
SEGUAM ISLAND TO ADAK BERING SIDE-
331 PM AKST TUE FEB 21 2017

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...S WIND 40 KT. SEAS 14 FT. RAIN.
.WED...S WIND 40 KT DIMINISHING TO 30 KT IN THE AFTERNOON. SEAS
16 FT. RAIN.
.WED NIGHT...S WIND 30 KT. SEAS 12 FT.
.THU AND THU NIGHT...SW WIND 30 KT. SEAS 15 FT.
.FRI...S WIND 45 KT. SEAS 17 FT.
.SAT...S WIND 35 KT. SEAS 16 FT.
.SUN...W WIND 15 KT. SEAS 10 FT.

$$

PKZ176-221315-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
331 PM AKST TUE FEB 21 2017

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...S WIND 35 KT INCREASING TO 45 KT AFTER MIDNIGHT. SEAS
26 FT.
.WED...S WIND 40 KT. SEAS 27 FT. RAIN.
.WED NIGHT...SW WIND 30 KT. SEAS 22 FT.
.THU...SW WIND 30 KT. SEAS 22 FT.
.THU NIGHT...SW WIND 25 KT. SEAS 20 FT.
.FRI...S WIND 40 KT. SEAS 22 FT.
.SAT...S WIND 35 KT. SEAS 22 FT.
.SUN...SW WIND 20 KT. SEAS 15 FT.

$$

PKZ177-221315-
ADAK TO KISKA-
331 PM AKST TUE FEB 21 2017

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...S WIND 45 KT. SEAS 21 FT BERING SIDE...28 FT PACIFIC
SIDE. RAIN.
.WED...S WIND 40 KT. SEAS 26 FT.
.WED NIGHT...S WIND 40 KT. SEAS 25 FT.
.THU...SW WIND 35 KT. SEAS 24 FT.
.THU NIGHT...SW WIND 40 KT. SEAS 22 FT.
.FRI...S WIND 45 KT. SEAS 26 FT.
.SAT...SW WIND 30 KT. SEAS 22 FT.
.SUN...NW WIND 20 KT. SEAS 13 FT.

$$

PKZ178-221315-
KISKA TO ATTU-
331 PM AKST TUE FEB 21 2017

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...SE WIND 35 KT. SEAS 21 FT. RAIN.
.WED...S WIND 35 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS 24
FT BUILDING TO 30 FT IN THE AFTERNOON. RAIN AND SNOW SHOWERS.
.WED NIGHT...SW WIND 45 KT. SEAS 31 FT. SNOW AND RAIN SHOWERS.
.THU...SW WIND 40 KT. SEAS 28 FT.
.THU NIGHT...S WIND 45 KT. SEAS 23 FT.
.FRI...S WIND 45 KT. SEAS 27 FT.
.SAT...SW WIND 30 KT. SEAS 22 FT.
.SUN...SW WIND 25 KT. SEAS 13 FT.

$$

PKZ179-221315-
PRIBILOF ISLANDS NEAR SHORE WATERS-
331 PM AKST TUE FEB 21 2017

...GALE WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 12 FT. SNOW.
.WED...S WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS
17 FT. RAIN.
.WED NIGHT...S WIND 40 KT DIMINISHING TO 30 KT AFTER MIDNIGHT.
SEAS 20 FT. RAIN.
.THU AND THU NIGHT...S WIND 20 KT. SEAS 15 FT.
.FRI THROUGH SAT...S WIND 35 KT. SEAS 20 FT.
.SUN...SW WIND 15 KT. SEAS 13 FT.

$$

PKZ180-221315-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
331 PM AKST TUE FEB 21 2017

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 35 KT BECOMING SW 25 KT AFTER MIDNIGHT. SNOW.
.WED...SE WIND 25 KT. SNOW.
.WED NIGHT...SE WIND 30 KT.
.THU...S WIND 30 KT.
.THU NIGHT...S WIND 20 KT.
.FRI THROUGH SAT...S WIND 30 KT.
.SUN...SW WIND 20 KT.

$$

PKZ181-221315-
NORTH AND WEST OF NUNIVAK ISLAND-
331 PM AKST TUE FEB 21 2017

...GALE WARNING TONIGHT...

.TONIGHT...NE WIND 40 KT BECOMING N 25 KT AFTER MIDNIGHT. SNOW.
.WED...E WIND 30 KT. SNOW.
.WED NIGHT...SE WIND 30 KT. SNOW.
.THU...S WIND 30 KT.
.THU NIGHT...S WIND 20 KT.
.FRI THROUGH SAT...S WIND 35 KT.
.SUN...SW WIND 20 KT.

$$

PKZ185-221315-
SAINT MATTHEW ISLAND WATERS-
331 PM AKST TUE FEB 21 2017

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

.TONIGHT...E OF SAINT MATTHEW ISLAND...NE WIND 35 KT DIMINISHING
TO 25 KT AFTER MIDNIGHT. W OF SAINT MATTHEW ISLAND...E WIND 45 KT.
SEAS IN ICE FREE WATERS 16 FT. HEAVY FREEZING SPRAY.
.WED...E WIND 35 KT E OF SAINT MATTHEW ISLAND...E 50 KT W OF SAINT
MATTHEW ISLAND. SEAS IN ICE FREE WATERS 19 FT. HEAVY FREEZING
SPRAY IN THE MORNING. SNOW AND RAIN.
.WED NIGHT...SE WIND 40 KT BECOMING S 30 KT AFTER MIDNIGHT. SEAS
IN ICE FREE WATERS 18 FT. SNOW.
.THU AND THU NIGHT...S WIND 30 KT. SEAS IN ICE FREE WATERS 22 FT.
.FRI THROUGH SAT...S WIND 40 KT. SEAS IN ICE FREE WATERS 27 FT.
.SUN...SW WIND 30 KT. SEAS IN ICE FREE WATERS 17 FT.

$$

825 
FZAK52 PAFC 221301
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
401 AM AKST WED FEB 22 2017

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.

PKZ199-230215-
401 AM AKST WED FEB 22 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...BOGOSLOF VOLCANO 53 NM
WEST OF DUTCH HARBOR REMAINS ACTIVE. A 948 MB LOW 175 NM WEST OF
ATTU MOVES TO 200 NM NORTH OF ATTU AT 963 MB LATE TONIGHT...THEN
MOVES TO 200 NM WEST OF GAMBELL AT 989 MB LATE THU NIGHT. AN
ASSOCIATED FRONT OVER THE CENTRAL BERING MOVES TO THE EASTERN
BERING TONIGHT...THEN WEAKENS AS IT MOVES INTO ALASKA. ANOTHER
STRONG FRONT MOVES INTO THE WESTERN ALEUTIANS THU NIGHT.

$$

PKZ150-230215-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
401 AM AKST WED FEB 22 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W WIND 20 KT. SEAS 11 FT.
.TONIGHT...SW WIND 20 KT. SEAS 9 FT.
.THU...S WIND 25 KT. SEAS 11 FT.
.THU NIGHT...S WIND 25 KT. SEAS 13 FT.
.FRI...W WIND 25 KT. SEAS 13 FT.
.SAT THROUGH SUN...W WIND 25 KT. SEAS 9 FT.

$$

PKZ155-230215-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
401 AM AKST WED FEB 22 2017

...GALE WARNING TONIGHT...

.TODAY...S WIND 30 KT. SEAS 13 FT.
.TONIGHT...S WIND 35 KT EXCEPT S 25 KT FROM THE SHUMAGIN ISLANDS
E. SEAS 17 FT.
.THU...S WIND 30 KT. SEAS 18 FT.
.THU NIGHT...S WIND 30 KT. SEAS 18 FT.
.FRI...W WIND 25 KT. SEAS 15 FT.
.SAT THROUGH SUN...SW WIND 25 KT. SEAS 11 FT.

$$

PKZ160-230215-
BRISTOL BAY-
401 AM AKST WED FEB 22 2017

...BRISK WIND ADVISORY THURSDAY...

.TODAY...S WIND 20 KT.
.TONIGHT...SE WIND 20 KT.
.THU...SE WIND 25 KT.
.THU NIGHT...SE WIND 25 KT.
.FRI...SW WIND 15 KT.
.SAT...SW WIND 20 KT.
.SUN...SW WIND 25 KT.

$$

PKZ165-230215-
PORT HEIDEN TO CAPE SARICHEF-
401 AM AKST WED FEB 22 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...S WIND 35 KT EXCEPT S 25 KT FROM PORT MOLLER E. SEAS 9
FT.
.TONIGHT...S WIND 40 KT EXCEPT S 30 KT FROM PORT MOLLER E. SEAS
11 FT.
.THU...S WIND 30 KT. SEAS 11 FT. RAIN.
.THU NIGHT...SW WIND 20 KT. SEAS 8 FT.
.FRI...SW WIND 25 KT. SEAS 10 FT.
.SAT...SW WIND 30 KT. SEAS 15 FT.
.SUN...SW WIND 25 KT. SEAS 11 FT.

$$

PKZ170-230215-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
401 AM AKST WED FEB 22 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...S WIND 35 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS
15 FT.
.TONIGHT...S WIND 45 KT. SEAS 17 FT.
.THU...S WIND 25 KT BECOMING SW 15 KT IN THE AFTERNOON. SEAS 11
FT.
.THU NIGHT...W WIND 20 KT. SEAS 11 FT.
.FRI THROUGH SAT...S WIND 35 KT. SEAS 15 FT.
.SUN...SW WIND 25 KT. SEAS 12 FT.

$$

PKZ171-230215-
UNALASKA BAY-
401 AM AKST WED FEB 22 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...S WIND 15 KT IN THE MORNING INCREASING TO 30 KT. SEAS
BUILDING TO 5 FT.
.TONIGHT...S WIND 30 KT. SEAS 5 FT. RAIN.
.THU...S WIND 15 KT IN THE MORNING BECOMING VARIABLE LESS THAN
10 KT. SEAS 3 FT.
.THU NIGHT...W WIND 10 KT. SEAS 2 FT.
.FRI...SW WIND 20 KT. SEAS 3 FT.
.SAT...S WIND 25 KT. SEAS 3 FT.
.SUN...SW WIND 20 KT. SEAS 3 FT.

$$

PKZ172-230215-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
401 AM AKST WED FEB 22 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...S WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS
21 FT.
.TONIGHT...S WIND 45 KT DIMINISHING TO 35 KT AFTER MIDNIGHT. SEAS
25 FT. RAIN.
.THU...SW WIND 30 KT BECOMING W 20 KT IN THE AFTERNOON. SEAS 21
FT. RAIN.
.THU NIGHT...W WIND 20 KT. SEAS 17 FT.
.FRI THROUGH SAT...SW WIND 30 KT. SEAS 14 FT.
.SUN...SW WIND 25 KT. SEAS 13 FT.

$$

PKZ173-230215-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
401 AM AKST WED FEB 22 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...S WIND INCREASING TO 45 KT. SEAS BUILDING TO 22 FT.
RAIN.
.TONIGHT...S WIND 45 KT BECOMING SW 25 KT AFTER MIDNIGHT. SEAS 21
FT SUBSIDING TO 14 FT AFTER MIDNIGHT. RAIN.
.THU...SW WIND 25 KT. SEAS 13 FT.
.THU NIGHT...SW WIND 25 KT. SEAS 14 FT.
.FRI...S WIND 40 KT. SEAS 16 FT.
.SAT...S WIND 35 KT. SEAS 16 FT.
.SUN...W WIND 25 KT. SEAS 12 FT.

$$

PKZ174-230215-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
401 AM AKST WED FEB 22 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...S WIND INCREASING TO 45 KT. SEAS BUILDING TO 29 FT.
RAIN.
.TONIGHT...S WIND 45 KT BECOMING SW 20 KT AFTER MIDNIGHT. SEAS 29
FT SUBSIDING TO 23 FT AFTER MIDNIGHT. RAIN.
.THU...SW WIND 20 KT. SEAS 20 FT.
.THU NIGHT...SW WIND 20 KT. SEAS 18 FT.
.FRI THROUGH SUN...SW WIND 30 KT. SEAS 17 FT.

$$

PKZ175-230215-
SEGUAM ISLAND TO ADAK BERING SIDE-
401 AM AKST WED FEB 22 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...S WIND 45 KT. SEAS 16 FT. RAIN.
.TONIGHT...S WIND 35 KT. SEAS 13 FT.
.THU...SW WIND 30 KT. SEAS 15 FT.
.THU NIGHT...SW WIND 30 KT. SEAS 15 FT.
.FRI...S WIND 45 KT. SEAS 17 FT.
.SAT...SW WIND 35 KT. SEAS 14 FT.
.SUN...NW WIND 20 KT. SEAS 10 FT.

$$

PKZ176-230215-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
401 AM AKST WED FEB 22 2017

...GALE WARNING TODAY...

.TODAY...S WIND 45 KT. SEAS 28 FT. RAIN.
.TONIGHT...SW WIND 30 KT. SEAS 22 FT.
.THU...SW WIND 30 KT. SEAS 22 FT.
.THU NIGHT...SW WIND 25 KT. SEAS 20 FT.
.FRI...S WIND 40 KT. SEAS 22 FT.
.SAT...S WIND 35 KT. SEAS 21 FT.
.SUN...NW WIND 25 KT. SEAS 16 FT.

$$

PKZ177-230215-
ADAK TO KISKA-
401 AM AKST WED FEB 22 2017

...GALE WARNING THROUGH THURSDAY...

.TODAY...S WIND 40 KT. SEAS 20 FT BERING SIDE...26 FT PACIFIC SIDE.
.TONIGHT...SW WIND 40 KT. SEAS 25 FT.
.THU...SW WIND 40 KT. SEAS 24 FT.
.THU NIGHT...SW WIND 40 KT. SEAS 21 FT.
.FRI...S WIND 50 KT. SEAS 26 FT.
.SAT...SW WIND 30 KT. SEAS 20 FT.
.SUN...N WIND 30 KT. SEAS 15 FT.

$$

PKZ178-230215-
KISKA TO ATTU-
401 AM AKST WED FEB 22 2017

...STORM WARNING TONIGHT...

.TODAY...S WIND 35 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS
28 FT. SNOW SHOWERS.
.TONIGHT...SW WIND 50 KT. SEAS 30 FT.
.THU...SW WIND 45 KT DIMINISHING TO 35 KT IN THE AFTERNOON. SEAS
28 FT.
.THU NIGHT...S WIND 45 KT. SEAS 22 FT.
.FRI...SW WIND 50 KT. SEAS 29 FT.
.SAT...SW WIND 30 KT. SEAS 19 FT.
.SUN...S WIND 30 KT. SEAS 13 FT.

$$

PKZ179-230215-
PRIBILOF ISLANDS NEAR SHORE WATERS-
401 AM AKST WED FEB 22 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...S WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS
18 FT. RAIN.
.TONIGHT...S WIND 40 KT DIMINISHING TO 30 KT AFTER MIDNIGHT. SEAS
21 FT. RAIN.
.THU...S WIND 25 KT. SEAS 14 FT.
.THU NIGHT...S WIND 20 KT. SEAS 15 FT.
.FRI THROUGH SAT...SW WIND 35 KT. SEAS 20 FT.
.SUN...W WIND 20 KT. SEAS 13 FT.

$$

PKZ180-230215-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
401 AM AKST WED FEB 22 2017

...BRISK WIND ADVISORY THROUGH THURSDAY...

.TODAY...SE WIND 25 KT. SNOW.
.TONIGHT...S WIND 30 KT.
.THU...S WIND 30 KT.
.THU NIGHT...S WIND 20 KT.
.FRI THROUGH SAT...SW WIND 30 KT.
.SUN...SW WIND 25 KT.

$$

PKZ181-230215-
NORTH AND WEST OF NUNIVAK ISLAND-
401 AM AKST WED FEB 22 2017

...BRISK WIND ADVISORY THROUGH THURSDAY...

.TODAY...E WIND 30 KT. SNOW.
.TONIGHT...SE WIND 30 KT. SNOW.
.THU...S WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON.
.THU NIGHT...S WIND 20 KT.
.FRI THROUGH SAT...SW WIND 30 KT.
.SUN...SW WIND 20 KT.

$$

PKZ185-230215-
SAINT MATTHEW ISLAND WATERS-
401 AM AKST WED FEB 22 2017

...STORM WARNING TODAY...
...HEAVY FREEZING SPRAY WARNING TODAY...

.TODAY...E WIND 35 KT E OF SAINT MATTHEW ISLAND...E 50 KT W OF
SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 20 FT. HEAVY
FREEZING SPRAY. SNOW AND RAIN.
.TONIGHT...E OF SAINT MATTHEW ISLAND...SE WIND 35 KT. W OF SAINT
MATTHEW ISLAND...SE WIND 45 KT BECOMING S 30 KT AFTER MIDNIGHT.
SEAS IN ICE FREE WATERS 18 FT. SNOW AND RAIN.
.THU...S WIND 25 KT E OF SAINT MATTHEW ISLAND...S 35 KT W OF SAINT
MATTHEW ISLAND. SEAS IN ICE FREE WATERS 23 FT.
.THU NIGHT...S WIND 35 KT. SEAS IN ICE FREE WATERS 25 FT.
.FRI THROUGH SAT...SW WIND 40 KT. SEAS IN ICE FREE WATERS 28 FT.
.SUN...W WIND 30 KT. SEAS IN ICE FREE WATERS 18 FT.

$$

307 
FZAK52 PAFC 230030
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
330 PM AKST WED FEB 22 2017

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.

PKZ199-231315-
330 PM AKST WED FEB 22 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

BOGOSLOF VOLCANO 53 NM WEST OF DUTCH HARBOR REMAINS ACTIVE.
A 953 MB LOW 220 NM SOUTHEAST OF SHEMYA WILL BE A 975 MB LOW 375
NM NORTH OF SHEMYA THU AFTERNOON THEN WEAKEN TO 1004 MB 95 NM
NORTHWEST OF GAMBELL FRI AFTERNOON. THE ASSOCIATED FRONT OVER THE
EASTERN BERING WILL MOVE INLAND OVER SOUTHWEST ALASKA TONIGHT. A
NORTHWEST PACIFIC LOW WILL BE A 968 MB LOW 275 NM NORTHWEST OF
SHEMYA FRI AFTERNOON.

$$

PKZ150-231315-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
330 PM AKST WED FEB 22 2017

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

.TONIGHT...SW WIND 20 KT. SEAS 9 FT.
.THU...S WIND 25 KT. SEAS 11 FT.
.THU NIGHT...S WIND 25 KT. SEAS 14 FT.
.FRI...SW WIND 25 KT. SEAS 14 FT.
.FRI NIGHT...W WIND 20 KT. SEAS 12 FT.
.SAT THROUGH SUN...W WIND 25 KT. SEAS 10 FT.
.MON...NW WIND 30 KT. SEAS 10 FT.

$$

PKZ155-231315-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
330 PM AKST WED FEB 22 2017

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 35 KT EXCEPT S 25 KT FROM THE SHUMAGIN ISLANDS
E. SEAS 18 FT EXCEPT 11 FT FROM THE SHUMAGIN ISLANDS E.
.THU...S WIND 30 KT. SEAS 20 FT.
.THU NIGHT...S WIND 30 KT. SEAS 19 FT.
.FRI...W WIND 25 KT. SEAS 16 FT.
.FRI NIGHT...W WIND 20 KT. SEAS 12 FT.
.SAT THROUGH SUN...SW WIND 25 KT. SEAS 11 FT.
.MON...NW WIND 25 KT. SEAS 10 FT.

$$

PKZ160-231315-
BRISTOL BAY-
330 PM AKST WED FEB 22 2017

...BRISK WIND ADVISORY THURSDAY AND THURSDAY NIGHT...

.TONIGHT...SE WIND 20 KT.
.THU...SE WIND 25 KT.
.THU NIGHT...SE WIND 25 KT. RAIN WITH SNOW.
.FRI AND FRI NIGHT...SW WIND 15 KT.
.SAT...SW WIND 20 KT.
.SUN...SW WIND 25 KT.
.MON...NW WIND 25 KT.

$$

PKZ165-231315-
PORT HEIDEN TO CAPE SARICHEF-
330 PM AKST WED FEB 22 2017

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 40 KT EXCEPT SE 35 KT FROM PORT MOLLER E. SEAS
11 FT.
.THU...SE WIND 30 KT. SEAS 11 FT. RAIN.
.THU NIGHT...W WIND 15 KT EXCEPT S 25 KT FROM PORT MOLLER E. SEAS
7 FT. RAIN.
.FRI...W WIND 20 KT. SEAS 11 FT.
.FRI NIGHT...S WIND 25 KT. SEAS 11 FT.
.SAT...SW WIND 30 KT. SEAS 14 FT.
.SUN...SW WIND 25 KT. SEAS 11 FT.
.MON...NW WIND 25 KT. SEAS 7 FT.

$$

PKZ170-231315-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
330 PM AKST WED FEB 22 2017

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 45 KT. SEAS 17 FT. RAIN.
.THU...SW WIND 30 KT DIMINISHING TO 15 KT IN THE AFTERNOON. SEAS
11 FT. RAIN.
.THU NIGHT...W WIND 20 KT. SEAS 11 FT.
.FRI...SW WIND 30 KT. SEAS 13 FT.
.FRI NIGHT...S WIND 35 KT. SEAS 13 FT.
.SAT...S WIND 35 KT. SEAS 15 FT.
.SUN...SW WIND 25 KT. SEAS 12 FT.
.MON...NE WIND 20 KT. SEAS 7 FT.

$$

PKZ171-231315-
UNALASKA BAY-
330 PM AKST WED FEB 22 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...S WIND 30 KT. SEAS 5 FT. RAIN.
.THU...S WIND 15 KT BECOMING W IN THE AFTERNOON. SEAS 2 FT. RAIN
SHOWERS.
.THU NIGHT...W WIND 10 KT. SEAS 2 FT.
.FRI...SW WIND 15 KT. SEAS 2 FT.
.FRI NIGHT...S WIND 20 KT. SEAS 3 FT.
.SAT...S WIND 25 KT. SEAS 4 FT.
.SUN...SW WIND 20 KT. SEAS 3 FT.
.MON...NE WIND 10 KT. SEAS 3 FT.

$$

PKZ172-231315-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
330 PM AKST WED FEB 22 2017

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 40 KT. SEAS 25 FT. RAIN.
.THU...SW WIND 30 KT. SEAS 22 FT. RAIN.
.THU NIGHT...W WIND 20 KT. SEAS 18 FT.
.FRI...SW WIND 20 KT. SEAS 15 FT.
.FRI NIGHT...SW WIND 30 KT. SEAS 12 FT.
.SAT...SW WIND 30 KT. SEAS 13 FT.
.SUN...SW WIND 25 KT. SEAS 13 FT.
.MON...NE WIND 20 KT. SEAS 9 FT.

$$

PKZ173-231315-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
330 PM AKST WED FEB 22 2017

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 45 KT BECOMING SW 20 KT AFTER MIDNIGHT. SEAS 19
FT SUBSIDING TO 14 FT AFTER MIDNIGHT. RAIN.
.THU...SW WIND 25 KT. SEAS 13 FT.
.THU NIGHT...SW WIND 25 KT. SEAS 14 FT.
.FRI...S WIND 35 KT. SEAS 14 FT.
.FRI NIGHT...S WIND 40 KT. SEAS 15 FT.
.SAT...S WIND 35 KT. SEAS 15 FT.
.SUN...W WIND 25 KT. SEAS 12 FT.
.MON...E WIND 25 KT. SEAS 7 FT.

$$

PKZ174-231315-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
330 PM AKST WED FEB 22 2017

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 45 KT BECOMING SW 25 KT AFTER MIDNIGHT. SEAS
27 FT. RAIN.
.THU...SW WIND 20 KT. SEAS 20 FT.
.THU NIGHT...SW WIND 20 KT. SEAS 18 FT.
.FRI AND FRI NIGHT...S WIND 30 KT. SEAS 16 FT.
.SAT THROUGH SUN...SW WIND 30 KT. SEAS 17 FT.
.MON...E WIND 25 KT. SEAS 10 FT.

$$

PKZ175-231315-
SEGUAM ISLAND TO ADAK BERING SIDE-
330 PM AKST WED FEB 22 2017

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 35 KT. SEAS 12 FT. RAIN.
.THU...SW WIND 30 KT. SEAS 15 FT.
.THU NIGHT...SW WIND 30 KT. SEAS 16 FT.
.FRI AND FRI NIGHT...S WIND 45 KT. SEAS 16 FT.
.SAT...SW WIND 35 KT. SEAS 15 FT.
.SUN...NW WIND 20 KT. SEAS 10 FT.
.MON...E WIND 30 KT. SEAS 8 FT.

$$

PKZ176-231315-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
330 PM AKST WED FEB 22 2017

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

.TONIGHT...SW WIND 30 KT. SEAS 22 FT. RAIN.
.THU...SW WIND 30 KT. SEAS 21 FT.
.THU NIGHT...SW WIND 25 KT. SEAS 19 FT.
.FRI AND FRI NIGHT...S WIND 40 KT. SEAS 19 FT.
.SAT...S WIND 35 KT. SEAS 20 FT.
.SUN...NW WIND 25 KT. SEAS 16 FT.
.MON...E WIND 25 KT. SEAS 9 FT.

$$

PKZ177-231315-
ADAK TO KISKA-
330 PM AKST WED FEB 22 2017

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...S WIND 40 KT. SEAS 25 FT.
.THU...SW WIND 40 KT. SEAS 24 FT.
.THU NIGHT...SW WIND 30 KT BECOMING S 40 KT AFTER MIDNIGHT. SEAS
21 FT.
.FRI...S WIND 50 KT. SEAS 24 FT.
.FRI NIGHT...SW WIND 45 KT. SEAS 25 FT.
.SAT...SW WIND 25 KT. SEAS 21 FT.
.SUN...N WIND 30 KT. SEAS 15 FT.
.MON...SE WIND 30 KT. SEAS 10 FT.

$$

PKZ178-231315-
KISKA TO ATTU-
330 PM AKST WED FEB 22 2017

...STORM WARNING TONIGHT...

.TONIGHT...SW WIND 50 KT. SEAS 30 FT. RAIN SHOWERS AND SNOW
SHOWERS.
.THU...SW WIND 45 KT DIMINISHING TO 35 KT IN THE AFTERNOON. SEAS
28 FT. SNOW SHOWERS.
.THU NIGHT...SW WIND 35 KT BECOMING S 45 KT AFTER MIDNIGHT. SEAS
21 FT. RAIN AND SNOW.
.FRI...S WIND 50 KT. SEAS 28 FT.
.FRI NIGHT...SW WIND 45 KT. SEAS 29 FT.
.SAT...SW WIND 30 KT. SEAS 21 FT.
.SUN...S WIND 30 KT. SEAS 13 FT.
.MON...SE WIND 30 KT. SEAS 13 FT.

$$

PKZ179-231315-
PRIBILOF ISLANDS NEAR SHORE WATERS-
330 PM AKST WED FEB 22 2017

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 40 KT DIMINISHING TO 30 KT AFTER MIDNIGHT. SEAS
20 FT. RAIN.
.THU...S WIND 25 KT. SEAS 15 FT.
.THU NIGHT...S WIND 20 KT. SEAS 15 FT.
.FRI...S WIND 30 KT. SEAS 15 FT.
.FRI NIGHT...S WIND 35 KT. SEAS 19 FT.
.SAT...SW WIND 30 KT. SEAS 20 FT.
.SUN...W WIND 20 KT. SEAS 13 FT.
.MON...N WIND 15 KT. SEAS 7 FT.

$$

PKZ180-231315-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
330 PM AKST WED FEB 22 2017

...BRISK WIND ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...S WIND 30 KT. RAIN.
.THU...S WIND 30 KT. RAIN.
.THU NIGHT...S WIND 25 KT BECOMING SW 15 KT AFTER MIDNIGHT. RAIN.
.FRI...SW WIND 20 KT.
.FRI NIGHT...S WIND 30 KT.
.SAT...SW WIND 30 KT.
.SUN...SW WIND 25 KT.
.MON...NW WIND 25 KT.

$$

PKZ181-231315-
NORTH AND WEST OF NUNIVAK ISLAND-
330 PM AKST WED FEB 22 2017

...BRISK WIND ADVISORY THROUGH THURSDAY...

.TONIGHT...SE WIND 30 KT. SNOW AND RAIN.
.THU...S WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON.
.THU NIGHT...S WIND 20 KT.
.FRI...S WIND 25 KT.
.FRI NIGHT...S WIND 30 KT.
.SAT...SW WIND 30 KT.
.SUN THROUGH MON...W WIND 20 KT.

$$

PKZ185-231315-
SAINT MATTHEW ISLAND WATERS-
330 PM AKST WED FEB 22 2017

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...E OF SAINT MATTHEW ISLAND...SE WIND 35 KT. W OF SAINT
MATTHEW ISLAND...SE WIND 45 KT BECOMING S 30 KT AFTER MIDNIGHT.
SEAS IN ICE FREE WATERS 17 FT. SNOW AND RAIN.
.THU...S WIND 25 KT E OF SAINT MATTHEW ISLAND...S 35 KT W OF SAINT
MATTHEW ISLAND. SEAS IN ICE FREE WATERS 21 FT. RAIN SHOWERS.
.THU NIGHT...S WIND 25 KT E OF SAINT MATTHEW ISLAND...S 35 KT W
OF SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 23 FT. RAIN
SHOWERS.
.FRI...S WIND 35 KT. SEAS IN ICE FREE WATERS 22 FT.
.FRI NIGHT...S WIND 45 KT. SEAS IN ICE FREE WATERS 26 FT.
.SAT...SW WIND 45 KT. SEAS IN ICE FREE WATERS 32 FT.
.SUN...W WIND 30 KT. SEAS IN ICE FREE WATERS 18 FT.
.MON...SW WIND 25 KT. SEAS IN ICE FREE WATERS 10 FT.

$$

407 
FZAK52 PAFC 231257
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
357 AM AKST THU FEB 23 2017

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.

PKZ199-240145-
357 AM AKST THU FEB 23 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

BOGOSLOF VOLCANO 53 NM WEST OF DUTCH HARBOR REMAINS ACTIVE. A 964
MB LOW 250 NM WEST OF ATTU STEADILY WEAKENS TO 1017 MB AS IT
MOVES TO 20 NM SOUTH OF KIVALINA BY SAT MORNING. THE ASSOCIATED
FRONT MOVES INTO WESTERN ALASKA THU NIGHT. A 971 MB LOW MOVES TO
410 NM WEST OF ATTU FRI MORNING CONTINUING TO THE NORTH KAMCHATKA
COAST AT 981 MB BY SAT MORNING. ITS ASSOCIATED FRONT MOVES INTO
THE WESTERN BERING BY SAT MORNING.

$$

PKZ150-240145-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
357 AM AKST THU FEB 23 2017

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...S WIND 15 KT INCREASING TO 25 KT BY MIDDAY.
SEAS BUILDING TO 12 FT.
.TONIGHT...S WIND 25 KT. SEAS 14 FT.
.FRI...S WIND 25 KT. SEAS 14 FT.
.FRI NIGHT...W WIND 20 KT. SEAS 11 FT.
.SAT THROUGH SUN...W WIND 25 KT. SEAS 9 FT.
.MON...NW WIND 30 KT. SEAS 8 FT.

$$

PKZ155-240145-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
357 AM AKST THU FEB 23 2017

...GALE WARNING TODAY...

.TODAY...S WIND 35 KT. SEAS 20 FT.
.TONIGHT...S WIND 25 KT. SEAS 20 FT.
.FRI...W WIND 15 KT EXCEPT SW 25 KT FROM THE SHUMAGIN ISLANDS E.
SEAS 15 FT.
.FRI NIGHT...W WIND 15 KT. SEAS 11 FT.
.SAT THROUGH SUN...SW WIND 20 KT. SEAS 10 FT.
.MON...NW WIND 20 KT. SEAS 8 FT.

$$

PKZ160-240145-
BRISTOL BAY-
357 AM AKST THU FEB 23 2017

...BRISK WIND ADVISORY THROUGH TONIGHT...

.TODAY...SE WIND 30 KT. GUSTS TO 40 KT OUT OF BAYS AND PASSES.
.TONIGHT...S WIND 25 KT DIMINISHING TO 15 KT AFTER MIDNIGHT.
SNOW.
.FRI...SW WIND 10 KT BECOMING W IN THE AFTERNOON.
PATCHY FOG. SNOW.
.FRI NIGHT...SW WIND 15 KT.
.SAT THROUGH SUN...SW WIND 20 KT.
.MON...NW WIND 25 KT.

$$

PKZ165-240145-
PORT HEIDEN TO CAPE SARICHEF-
357 AM AKST THU FEB 23 2017

...GALE WARNING TODAY...

.TODAY...SE WIND 35 KT. GUSTS TO 50 KT OUT OF BAYS AND PASSES
DIMINISHING IN THE AFTERNOON. SEAS 11 FT. RAIN.
.TONIGHT...SW WIND 20 KT. SEAS 7 FT. RAIN.
.FRI...SW WIND 20 KT. SEAS 11 FT.
.FRI NIGHT...S WIND 25 KT. SEAS 10 FT.
.SAT...SW WIND 30 KT. SEAS 13 FT.
.SUN...SW WIND 25 KT. SEAS 11 FT.
.MON...NW WIND 25 KT. SEAS 6 FT.

$$

PKZ170-240145-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
357 AM AKST THU FEB 23 2017

...GALE WARNING TODAY...

.TODAY...SE WIND 35 KT. GUSTS TO 50 KT IN THE MORNING. WINDS
BECOMING SW AND DIMINISHING TO 20 KT BY MIDDAY. SEAS 11 FT. RAIN.
.TONIGHT...SW WIND 20 KT. SEAS 11 FT.
.FRI...S WIND 25 KT. SEAS 13 FT.
.FRI NIGHT...S WIND 35 KT. SEAS 13 FT.
.SAT...S WIND 35 KT. SEAS 15 FT.
.SUN...SW WIND 25 KT. SEAS 11 FT.
.MON...NE WIND 25 KT. SEAS 7 FT.

$$

PKZ171-240145-
UNALASKA BAY-
357 AM AKST THU FEB 23 2017

.TODAY...SE WIND 30 KT BECOMING BECOMING W 15 KT BY MIDDAY. GUSTS
TO 40 KT IN THE MORNING. SEAS 2 FT. RAIN.
.TONIGHT...W WIND 10 KT. SEAS 2 FT.
.FRI...SW WIND 10 KT INCREASING TO 15 KT IN THE AFTERNOON. 
SEAS 2 FT.
.FRI NIGHT...S WIND 20 KT. SEAS 3 FT.
.SAT...S WIND 20 KT. SEAS 3 FT.
.SUN...SW WIND 15 KT. SEAS 2 FT.
.MON...NE WIND 15 KT. SEAS 4 FT.

$$

PKZ172-240145-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
357 AM AKST THU FEB 23 2017

...GALE WARNING TODAY...

.TODAY...SE WIND 35 KT BECOMING SW 20 KT BY MIDDAY. SEAS 22 FT.
RAIN.
.TONIGHT...W WIND 15 KT. SEAS 19 FT.
.FRI...SW WIND 20 KT. SEAS 15 FT.
.FRI NIGHT...SW WIND 25 KT. SEAS 12 FT.
.SAT...SW WIND 25 KT. SEAS 12 FT.
.SUN...SW WIND 20 KT. SEAS 11 FT.
.MON...N WIND 25 KT. SEAS 9 FT.

$$

PKZ173-240145-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
357 AM AKST THU FEB 23 2017

...GALE WARNING FRIDAY...

.TODAY...SW WIND 20 KT. SEAS 13 FT.
.TONIGHT...SW WIND 25 KT. SEAS 14 FT.
.FRI...SW WIND 25 KT BECOMING S 35 KT IN THE AFTERNOON.
SEAS 14 FT.
.FRI NIGHT...S WIND 40 KT. SEAS 15 FT.
.SAT...S WIND 35 KT. SEAS 15 FT.
.SUN...S WIND 25 KT. SEAS 10 FT.
.MON...E WIND 30 KT. SEAS 10 FT.

$$

PKZ174-240145-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
357 AM AKST THU FEB 23 2017

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...SW WIND 20 KT. SEAS 20 FT.
.TONIGHT...SW WIND 20 KT. SEAS 18 FT.
.FRI...SW WIND 20 KT BECOMING S 30 KT IN THE AFTERNOON. SEAS 16
FT.
.FRI NIGHT...S WIND 30 KT. SEAS 14 FT.
.SAT...S WIND 30 KT. SEAS 16 FT.
.SUN...S WIND 25 KT. SEAS 13 FT.
.MON...E WIND 30 KT. SEAS 9 FT.

$$

PKZ175-240145-
SEGUAM ISLAND TO ADAK BERING SIDE-
357 AM AKST THU FEB 23 2017

...GALE WARNING FRIDAY...

.TODAY...SW WIND 30 KT. SEAS 15 FT.
.TONIGHT...SW WIND 30 KT. SEAS 16 FT.
.FRI...S WIND 45 KT. SEAS 15 FT.
.FRI NIGHT...S WIND 45 KT. SEAS 17 FT.
.SAT...S WIND 35 KT. SEAS 15 FT.
.SUN...SE WIND 25 KT. SEAS 8 FT.
.MON...E WIND 30 KT. SEAS 11 FT.

$$

PKZ176-240145-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
357 AM AKST THU FEB 23 2017

...GALE WARNING FRIDAY...

.TODAY...SW WIND 30 KT. SEAS 21 FT.
.TONIGHT...SW WIND 25 KT. SEAS 19 FT.
.FRI...S WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS
17 FT.
.FRI NIGHT...S WIND 40 KT. SEAS 20 FT.
.SAT...S WIND 30 KT. SEAS 20 FT.
.SUN...S WIND 25 KT. SEAS 13 FT.
.MON...E WIND 30 KT. SEAS 11 FT.

$$

PKZ177-240145-
ADAK TO KISKA-
357 AM AKST THU FEB 23 2017

...STORM WARNING FRIDAY...

.TODAY...SW WIND 40 KT. SEAS 24 FT.
.TONIGHT...SW WIND 30 KT BECOMING S 40 KT AFTER MIDNIGHT. SEAS
21 FT.
.FRI...S WIND 50 KT. SEAS 24 FT. RAIN.
.FRI NIGHT...SW WIND 45 KT. SEAS 25 FT.
.SAT...SW WIND 25 KT. SEAS 21 FT.
.SUN...NE WIND 25 KT. SEAS 11 FT.
.MON...E WIND 35 KT. SEAS 13 FT.

$$

PKZ178-240145-
KISKA TO ATTU-
357 AM AKST THU FEB 23 2017

...STORM WARNING FRIDAY...

.TODAY...SW WIND 45 KT DIMINISHING TO 35 KT IN THE AFTERNOON. SEAS
27 FT. RAIN SHOWERS AND SNOW SHOWERS.
.TONIGHT...SW WIND 30 KT BECOMING S 45 KT AFTER MIDNIGHT. SEAS
20 FT. RAIN AND SNOW.
.FRI...S WIND 50 KT. SEAS 27 FT. RAIN.
.FRI NIGHT...SW WIND 45 KT. SEAS 28 FT.
.SAT...SW WIND 30 KT. SEAS 21 FT.
.SUN...E WIND 25 KT. SEAS 12 FT.
.MON...E WIND 35 KT. SEAS 15 FT.

$$

PKZ179-240145-
PRIBILOF ISLANDS NEAR SHORE WATERS-
357 AM AKST THU FEB 23 2017

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...S WIND 25 KT. SEAS 14 FT.
.TONIGHT...S WIND 25 KT. SEAS 15 FT.
.FRI...S WIND 30 KT. SEAS 15 FT.
.FRI NIGHT...S WIND 40 KT. SEAS 19 FT.
.SAT...SW WIND 35 KT. SEAS 20 FT.
.SUN...W WIND 20 KT. SEAS 12 FT.
.MON...N WIND 15 KT. SEAS 7 FT.

$$

PKZ180-240145-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
357 AM AKST THU FEB 23 2017

...GALE WARNING TODAY...

.TODAY...S WIND 35 KT. RAIN.
.TONIGHT...S WIND 20 KT. SNOW.
.FRI...SW WIND 20 KT. PATCHY FREEZING FOG.
.FRI NIGHT...S WIND 30 KT.
.SAT...SW WIND 30 KT.
.SUN...SW WIND 20 KT.
.MON...NW WIND 25 KT.

$$

PKZ181-240145-
NORTH AND WEST OF NUNIVAK ISLAND-
357 AM AKST THU FEB 23 2017

...BRISK WIND ADVISORY THROUGH FRIDAY...

.TODAY...S WIND 30 KT.
.TONIGHT...S WIND 25 KT.
.FRI...S WIND 25 KT. PATCHY FREEZING FOG.
.FRI NIGHT...S WIND 35 KT.
.SAT...SW WIND 30 KT.
.SUN...SW WIND 20 KT.
.MON...NW WIND 20 KT.

$$

PKZ185-240145-
SAINT MATTHEW ISLAND WATERS-
357 AM AKST THU FEB 23 2017

...GALE WARNING THROUGH FRIDAY...

.TODAY...S WIND 25 KT E OF SAINT MATTHEW ISLAND...S 35 KT W OF
SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 20 FT. RAIN
SHOWERS.
.TONIGHT...S WIND 35 KT. SEAS IN ICE FREE WATERS 22 FT. RAIN
SHOWERS.
.FRI...S WIND 35 KT. SEAS IN ICE FREE WATERS 21 FT. SNOW.
.FRI NIGHT...S WIND 45 KT. SEAS IN ICE FREE WATERS 25 FT.
.SAT...SW WIND 45 KT. SEAS IN ICE FREE WATERS 30 FT.
.SUN...W WIND 30 KT. SEAS IN ICE FREE WATERS 16 FT.
.MON...NW WIND 25 KT. SEAS IN ICE FREE WATERS 10 FT.

$$

229 
FZAK52 PAFC 240027
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
327 PM AKST THU FEB 23 2017

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.

PKZ199-241245-
327 PM AKST THU FEB 23 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
BOGOSLOF VOLCANO 53 NM WEST OF DUTCH HARBOR REMAINS ACTIVE. 
A 977 MB LOW 290 NM NORTH OF SHEMYA MOVES TO THE GULF OF ANADYR
AND WEAKENS TO 1006 MB FRIDAY AFTERNOON. A DEVELOPING NORTH
PACIFIC LOW MOVES TO 270 NM NORTHWEST OF SHEMYA AT 969 MB FRIDAY
AFTERNOON THEN TO 360 NM WEST OF SAINT LAWRENCE ISLAND AT 982 MB
SATURDAY MORNING.

$$

PKZ150-241245-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
327 PM AKST THU FEB 23 2017

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

.TONIGHT...S WIND 25 KT. SEAS 13 FT.
.FRI...SW WIND 25 KT. FROM CHIRIKOF ISLAND W...SW WIND 25 KT
DIMINISHING TO 15 KT IN THE AFTERNOON. SEAS 13 FT.
.FRI NIGHT...NW WIND 20 KT. SEAS 10 FT.
.SAT...W WIND 20 KT. SEAS 7 FT.
.SAT NIGHT...W WIND 25 KT. SEAS 7 FT.
.SUN...W WIND 25 KT. SEAS 8 FT.
.MON...NW WIND 30 KT. SEAS 8 FT.
.TUE...NW WIND 35 KT. SEAS 9 FT.

$$

PKZ155-241245-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
327 PM AKST THU FEB 23 2017

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

.TONIGHT...S WIND 25 KT. SEAS 20 FT. W OF THE SHUMAGIN
ISLANDS...S WIND 25 KT BECOMING W 15 KT AFTER MIDNIGHT. SEAS 20 FT
SUBSIDING TO 15 FT AFTER MIDNIGHT.
.FRI...W WIND 15 KT. FROM THE SHUMAGIN ISLANDS E... S WIND 20 KT
BECOMING W 15 KT IN THE AFTERNOON. SEAS 14 FT.
.FRI NIGHT...W WIND 15 KT. SEAS 10 FT.
.SAT AND SAT NIGHT...SW WIND 20 KT. SEAS 8 FT.
.SUN...SW WIND 20 KT. SEAS 9 FT.
.MON...NW WIND 20 KT. SEAS 8 FT.
.TUE...N WIND 25 KT. SEAS 7 FT.

$$

PKZ160-241245-
BRISTOL BAY-
327 PM AKST THU FEB 23 2017

...BRISK WIND ADVISORY TONIGHT...

.TONIGHT...S WIND 25 KT DIMINISHING TO 10 KT AFTER MIDNIGHT.
PATCHY FOG.
.FRI...SW WIND 10 KT INCREASING TO 15 KT IN THE AFTERNOON. PATCHY
FOG.
.FRI NIGHT...SW WIND 15 KT. PATCHY FREEZING FOG.
.SAT AND SAT NIGHT...SW WIND 20 KT.
.SUN...SW WIND 20 KT.
.MON THROUGH TUE...NW WIND 25 KT.

$$

PKZ165-241245-
PORT HEIDEN TO CAPE SARICHEF-
327 PM AKST THU FEB 23 2017

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

.TONIGHT...S WIND 25 KT DIMINISHING TO 10 KT AFTER MIDNIGHT.
FROM COLD BAY W...SW WIND 20 KT. SEAS 8 FT.
.FRI...W WIND 15 KT. SEAS 10 FT.
.FRI NIGHT...SW WIND 15 KT BECOMING S 25 KT AFTER MIDNIGHT. E OF
COLD BAY...SW WIND 15 KT BECOMING S AFTER MIDNIGHT. SEAS 10 FT.
.SAT...S WIND 30 KT. SEAS 12 FT.
.SAT NIGHT...SW WIND 25 KT. SEAS 13 FT.
.SUN...SW WIND 20 KT. SEAS 11 FT.
.MON...NW WIND 25 KT. SEAS 6 FT.
.TUE...N WIND 30 KT. SEAS 8 FT.

$$

PKZ170-241245-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
327 PM AKST THU FEB 23 2017

...GALE WARNING FRIDAY NIGHT...

.TONIGHT...SW WIND 20 KT. SEAS 11 FT.
.FRI...SW WIND 25 KT. SEAS 12 FT.
.FRI NIGHT...S WIND 25 KT INCREASING TO 35 KT AFTER MIDNIGHT.
SEAS 12 FT.
.SAT...S WIND 35 KT. SEAS 15 FT.
.SAT NIGHT...S WIND 30 KT. SEAS 14 FT.
.SUN...SW WIND 25 KT. SEAS 12 FT.
.MON THROUGH TUE...NE WIND 25 KT. SEAS 7 FT.

$$

PKZ171-241245-
UNALASKA BAY-
327 PM AKST THU FEB 23 2017

.TONIGHT...SW WIND 10 KT. GUSTS TO 20 KT IN THE EVENING. SEAS 2
FT.
.FRI...SW WIND 10 KT INCREASING TO 15 KT IN THE AFTERNOON. SEAS 2
FT.
.FRI NIGHT...S WIND 20 KT. SEAS 3 FT.
.SAT...S WIND 20 KT. SEAS 3 FT.
.SAT NIGHT...S WIND 15 KT. SEAS 2 FT.
.SUN...SW WIND 15 KT. SEAS 2 FT.
.MON...NE WIND 15 KT. SEAS 4 FT.
.TUE...NE WIND 20 KT. SEAS 5 FT.

$$

PKZ172-241245-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
327 PM AKST THU FEB 23 2017

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

.TONIGHT...W WIND 15 KT. SEAS 18 FT.
.FRI...SW WIND 20 KT. SEAS 14 FT.
.FRI NIGHT...S WIND 25 KT. SEAS 11 FT.
.SAT...S WIND 25 KT. SEAS 10 FT.
.SAT NIGHT...SW WIND 20 KT. SEAS 11 FT.
.SUN...SW WIND 20 KT. SEAS 11 FT.
.MON...N WIND 25 KT. SEAS 9 FT.
.TUE...NE WIND 30 KT. SEAS 9 FT.

$$

PKZ173-241245-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
327 PM AKST THU FEB 23 2017

...GALE WARNING FRIDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 14 FT.
.FRI...S WIND 30 KT. SEAS 14 FT.
.FRI NIGHT...S WIND 40 KT. SEAS 15 FT.
.SAT...S WIND 35 KT. SEAS 15 FT.
.SAT NIGHT...S WIND 30 KT. SEAS 12 FT.
.SUN...S WIND 25 KT. SEAS 11 FT.
.MON THROUGH TUE...E WIND 30 KT. SEAS 11 FT.

$$

PKZ174-241245-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
327 PM AKST THU FEB 23 2017

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

.TONIGHT...SW WIND 20 KT. SEAS 18 FT.
.FRI...S WIND 15 KT INCREASING TO 25 KT IN THE AFTERNOON.
SEAS 15 FT.
.FRI NIGHT...S WIND 30 KT. SEAS 13 FT.
.SAT...S WIND 30 KT. SEAS 16 FT.
.SAT NIGHT...S WIND 25 KT. SEAS 16 FT.
.SUN...S WIND 25 KT. SEAS 13 FT.
.MON...E WIND 30 KT. SEAS 9 FT.
.TUE...E WIND 30 KT. SEAS 13 FT.

$$

PKZ175-241245-
SEGUAM ISLAND TO ADAK BERING SIDE-
327 PM AKST THU FEB 23 2017

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

.TONIGHT...SW WIND 30 KT. SEAS 15 FT.
.FRI...S WIND 35 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS
16 FT.
.FRI NIGHT...S WIND 45 KT. SEAS 18 FT.
.SAT...S WIND 35 KT. SEAS 15 FT.
.SAT NIGHT...S WIND 25 KT. SEAS 10 FT.
.SUN...NE WIND 25 KT. SEAS 9 FT.
.MON...E WIND 30 KT. SEAS 11 FT.
.TUE...E WIND 35 KT. SEAS 13 FT.

$$

PKZ176-241245-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
327 PM AKST THU FEB 23 2017

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

.TONIGHT...SW WIND 25 KT. SEAS 19 FT.
.FRI...S WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON.
SEAS 16 FT.
.FRI NIGHT...S WIND 40 KT. SEAS 20 FT.
.SAT...S WIND 35 KT. SEAS 21 FT.
.SAT NIGHT...S WIND 30 KT. SEAS 17 FT.
.SUN...S WIND 25 KT. SEAS 14 FT.
.MON...E WIND 30 KT. SEAS 11 FT.
.TUE...E WIND 35 KT. SEAS 15 FT.

$$

PKZ177-241245-
ADAK TO KISKA-
327 PM AKST THU FEB 23 2017

...STORM WARNING FRIDAY...

.TONIGHT...SW WIND 35 KT BECOMING S AFTER MIDNIGHT. SEAS 21 FT.
.FRI...S WIND 40 KT INCREASING TO 50 KT BY LATE MORNING. SEAS 21
FT BUILDING TO 27 KT BY LATE MORNING.
.FRI NIGHT...S WIND 45 KT BECOMING SW 30 KT AFTER MIDNIGHT. SEAS
27 FT SUBSIDING TO 22 FT AFTER MIDNIGHT. RAIN.
.SAT...SW WIND 25 KT. SEAS 20 FT.
.SAT NIGHT...W WIND 15 KT. SEAS 16 FT.
.SUN...NE WIND 25 KT. SEAS 12 FT.
.MON...E WIND 35 KT. SEAS 13 FT.
.TUE...E WIND 35 KT. SEAS 17 FT.

$$

PKZ178-241245-
KISKA TO ATTU-
327 PM AKST THU FEB 23 2017

...STORM WARNING FRIDAY AND FRIDAY NIGHT...

.TONIGHT...SW WIND 30 KT BECOMING S 45 KT AFTER MIDNIGHT. SEAS
20 FT. RAIN.
.FRI...S WIND 50 KT. SEAS 23 FT BUILDING TO 30 FT IN THE AFTERNOON.
RAIN.
.FRI NIGHT...SW WIND 50 KT DIMINISHING TO 40 KT AFTER MIDNIGHT.
SEAS 32 FT SUBSIDING TO 24 FT AFTER MIDNIGHT.
.SAT...SW WIND 30 KT. SEAS 21 FT.
.SAT NIGHT...W WIND 20 KT. SEAS 16 FT.
.SUN...NE WIND 25 KT. SEAS 12 FT.
.MON THROUGH TUE...E WIND 35 KT. SEAS 17 FT.

$$

PKZ179-241245-
PRIBILOF ISLANDS NEAR SHORE WATERS-
327 PM AKST THU FEB 23 2017

...GALE WARNING FRIDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 16 FT.
.FRI...S WIND 30 KT. SEAS 16 FT.
.FRI NIGHT...S WIND 30 KT INCREASING TO 40 KT IN THE EVENING.
SEAS 19 FT.
.SAT...SW WIND 35 KT. SEAS 21 FT.
.SAT NIGHT...SW WIND 25 KT. SEAS 16 FT.
.SUN...W WIND 20 KT. SEAS 12 FT.
.MON...N WIND 15 KT. SEAS 7 FT.
.TUE...NE WIND 20 KT. SEAS 5 FT.

$$

PKZ180-241245-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
327 PM AKST THU FEB 23 2017

...BRISK WIND ADVISORY TONIGHT AND FRIDAY NIGHT...

.TONIGHT...S WIND 30 KT DIMINISHING TO 20 KT AFTER MIDNIGHT.
.FRI...SW WIND 20 KT.
.FRI NIGHT...S WIND 30 KT. PATCHY FREEZING FOG.
.SAT...S WIND 30 KT.
.SAT NIGHT...SW WIND 25 KT.
.SUN...SW WIND 20 KT.
.MON...NW WIND 25 KT.
.TUE...N WIND 30 KT.

$$

PKZ181-241245-
NORTH AND WEST OF NUNIVAK ISLAND-
327 PM AKST THU FEB 23 2017

...GALE WARNING FRIDAY NIGHT...

.TONIGHT...S WIND 25 KT.
.FRI...S WIND 25 KT.
.FRI NIGHT...S WIND 25 KT INCREASING TO 35 KT AFTER MIDNIGHT.
SNOW AND RAIN.
.SAT...SW WIND 35 KT.
.SAT NIGHT...SW WIND 25 KT.
.SUN...W WIND 20 KT.
.MON THROUGH TUE...N WIND 20 KT.

$$

PKZ185-241245-
SAINT MATTHEW ISLAND WATERS-
327 PM AKST THU FEB 23 2017

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...S WIND 20 KT INCREASING TO 30 KT IN THE EVENING E OF
SAINT MATTHEW ISLAND...S 35 KT W OF SAINT MATTHEW ISLAND. SEAS IN
ICE FREE WATERS 21 FT.
.FRI...SW WIND 35 KT BECOMING S IN THE AFTERNOON. E OF SAINT
MATTHEW ISLAND...S WIND 25 KT. SEAS IN ICE FREE WATERS 21 FT.
.FRI NIGHT...S WIND 35 KT INCREASING TO 45 KT AFTER MIDNIGHT. FROM
SAINT MATTHEW E...S WIND 25 KT INCREASING TO 35 KT AFTER MIDNIGHT.
SEAS IN ICE FREE WATERS 24 FT. RAIN AND SNOW.
.SAT...SW WIND 50 KT. SEAS IN ICE FREE WATERS 31 FT.
.SAT NIGHT...SW WIND 40 KT. SEAS IN ICE FREE WATERS 26 FT.
.SUN...W WIND 30 KT. SEAS IN ICE FREE WATERS 17 FT.
.MON...NW WIND 25 KT. SEAS IN ICE FREE WATERS 10 FT.
.TUE...E WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
436 PM AKST Mon Feb 20 2017

.ANALYSIS AND UPPER LEVELS...
We are getting into a more progressive pattern with a upper level
trough moving eastward over the mainland part of the state...being
driven by an amplifying upper level high that is also moving
eastward. At the surface there is a very strong low near Attu
which produced Hurricane Force winds over the western Bering Sea
this morning. The front associated with this low is heading
eastward across the Bering Sea and Aleutians and is the source of
the Blizzard Warning for the Pribilof Islands. The surface ridge
is over Southwest mainland Alaska in stretching into the Interior
of the state. A surface low near Prince William Sound is also
keeping some snow showers in that area as well as gusty winds
through the Barren Islands. In northern Cook Inlet the atmosphere
is saturated up to around 6500 ft and then quite dry above that.
There is very weak lift ahead of the 500 mb trough which, combined
with just a little cold air advection, is producing an environment
that is squeezing every bit of moisture out of this saturated
layer and causing the persistent periods of snow. The snow is
often occurring low enough that the radar beam out of Nikiski is
above the precipitation and therefore showing nothing on the
radar.

&&

.MODEL DISCUSSION...
Models continue to do good with the synoptic pattern. The ECMWF is
hinting at a slightly faster solution for the system moving
through Southwest mainland Alaska tomorrow and Southcentral Alaska
Tomorrow evening and overnight but will just mean minor differences
in the forecast. Models, even the high resolution ones, are not
catching the subtle forcing bringing the snow to the upper Cook
Inlet region today. They are all similar in timing of the passage
of the 500 mb trough late this afternoon/early evening which will
bring an end to the persistent on and off snowfall.

&&

.AVIATION...
PANC...Snow showers should taper off late this afternoon or early
this evening. This will allow ceilings to remain at or above 5000
ft from that time onward. Late tonight the clouds should
completely clear but that also adds the threat of some fog
developing late tonight and early tomorrow morning. At this time
it looks more likely there will not be widespread fog formation so
it is not in the TAF, but it does remain a possibility.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
Light snow showers are expected to diminish by late tonight as
the upper level low over the northwest coast lifts north. A colder
dense air mass filters across Southcentral for Tuesday. Strong
winds will increase through the night for Seward and Whittier as
the pressure gradient tightens along the western gulf coast with a
ridge settling in from the interior. The low over Prince William
Sound is forced southeast by Tuesday afternoon which allows the
pressure gradient to slacken and winds quickly taper off in
response.

The next front to impact Southcentral is expected to bring
widespread snow across all of Southcentral late Tuesday and
Wednesday. Snow development across Kodiak Island and the western
Kenai should start Tuesday afternoon along the surface front
which runs slightly ahead of the upper low. The upper level low
kicks into a faster pace Tuesday night as another low pushes in
behind it. The dynamic set up for this system will primarily be an
overrunning event where a warmer subtropical air mass glides over
the cold shallow air mass already in place. Precipitation chances
were generally increased across the southern Mainland and gulf
with the system diminishing late Wednesday from west to east.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
Current clear and cold conditions will remain the status quo
through tonight and into early Tuesday morning, as a stationary
upper trough and arctic air mass continues to remain in place over
the area. The pattern will then begin to shift early Tuesday
morning with the approach of a frontal system from the Bering.
This system will spread snow from southwest to northeast through
the day Tuesday, along with some offshore flow and slightly mixed
air hindering surface temperatures from dropping drastically as
has been seen in previous days. Snowfall accumulation looks to be
in the 3 to 8 inch range, with isolated areas getting slightly
more than 8 inches. With the gusty winds and snowfall associated
with this frontal system, there is potential to see some blizzard
conditions mainly along the Kuskokwim Delta coast and the areas
from Dillingham North and West on Tuesday. The front exits from
west to east early Wednesday morning, but the now active pattern
will persist into the second half of the week.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
The big story remains the hurricane force front tracking northward
over the western Bering Sea tonight. It looks to have peaked in
intensity today, with winds beginning to trend downward this
evening. The associated front will continue to push northeastward
over the Bering, bringing blizzard conditions to the Pribilof
Islands early this evening and overnight into Tuesday. As the
front continues to track eastward, Unalaska will get a quick shot
of snow and blowing snow, but temperatures will warm enough from
downslope to mitigate the threat by the late afternoon hours. The
actual warm air will change precipitation to rain by the late this
evening. The Alaska Peninsula is in a similar situation as the
front traverses the area Tuesday morning.

As the front exits onto the mainland, a second strong low and
front will follow a similar pattern as the previously mentioned
system, and enter the western Bering Tuesday afternoon. The
notable difference with this system is that it will have more of
a south to north trajectory, with the warm front followed by a
west to east moving cold front. Confidence is higher that strong
winds and precipitation will remain in the forecast for this area,
as the more progressive pattern sets up shop over the
Bering/Aleutians.

&&

.LONG TERM FORECAST (Days 3 through 7)...
A very amplified ridge setting up over much of Mainland Alaska on
Thursday will surge above normal temperatures and moisture to the
Gulf and the South Mainland through late this week. This will
initially bring above normal temperatures but otherwise quiet
weather to most areas for Thursday, but this will begin to become
more active as the remnants of a frontal band becomes
reinvigorated by a shortwave traversing the Bering Sea. This will
bring precipitation mostly in the form of rain the Southwest
Mainland on Friday, which will then spread into Southcentral late
Friday-Saturday. What is less certain this far out in the forecast
is determining whether surface temperatures will rise above
freezing, so the possibility of freezing rain will need to be
monitored in the coming days.

By Sunday, there is good agreement that this warm-up will once
again be short lived as the amplified ridge flattens out as it
shifts to the south. This will allow for a series of arctic
troughs to track back into the Mainland, forcing temperatures back
below freezing and chances of precipitation to snow in most areas.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Blizzard Warning 191.
         Blizzard Watch 155 161.
MARINE...Gale Warning 130 131 155 160 165 170>181 185.
         Heavy Frz Spray 121 129 130 138 139 165 185.

&&

SYNOPSIS AND MODEL DISCUSSION...EZ
SOUTHCENTRAL ALASKA...KH
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...PEPE
LONG TERM...DEK