Gale Warning 287, NWS Anchorage, AK

005 
FZAK52 PAFC 201201
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
401 AM AKDT THU APR 20 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.

PKZ199-210045-
401 AM AKDT THU APR 20 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A FRONT OVER THE WESTERN AND CENTRAL ALEUTIANS WILL STRENGTHEN 
THROUGH TONIGHT...THEN PUSH NORTH INTO THE WESTERN AND CENTRAL
BERING SEA FRI THROUGH FRI NIGHT. A FRONT ASSOCIATED WITH A NORTH
PACIFIC LOW WILL APPROACH THE ALASKA PENINSULA FRI MORNING AND 
MOVE TO BRISTOL BAY FRI NIGHT.

$$

PKZ150-210045-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
401 AM AKDT THU APR 20 2017

...SMALL CRAFT ADVISORY FRIDAY...

.TODAY...E WIND 20 KT. SEAS 4 FT. AREAS OF FOG.
.TONIGHT...E WIND 20 KT. SEAS 5 FT.
.FRI...NE WIND 30 KT. SEAS 9 FT.
.FRI NIGHT...NE WIND 35 KT. SEAS 13 FT.
.SAT...E WIND 30 KT. SEAS 12 FT.
.SUN THROUGH MON...E WIND 15 KT. SEAS 8 FT.

$$

PKZ155-210045-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
401 AM AKDT THU APR 20 2017

.TODAY...E WIND 15 KT. SEAS 4 FT. AREAS OF FOG.
.TONIGHT...E WIND 15 KT. SEAS 4 FT.
.FRI...NE WIND 20 KT. SEAS 6 FT.
.FRI NIGHT...NE WIND 25 KT. SEAS 10 FT.
.SAT...E WIND 20 KT. SEAS 10 FT.
.SUN...SE WIND 15 KT. SEAS 9 FT.
.MON...VARIABLE WIND 10 KT. SEAS 9 FT.

$$

PKZ160-210045-
BRISTOL BAY-
401 AM AKDT THU APR 20 2017

.TODAY...NE WIND 10 KT BECOMING E IN THE AFTERNOON. SEAS 2 FT.
PATCHY FOG.
.TONIGHT...E WIND 15 KT. SEAS 3 FT.
.FRI...NE WIND 20 KT. SEAS 4 FT.
.FRI NIGHT...NE WIND 25 KT. SEAS 4 FT.
.SAT...NE WIND 30 KT. SEAS 7 FT.
.SUN...E WIND 25 KT. SEAS 4 FT.
.MON...E WIND 15 KT. SEAS 3 FT.

$$

PKZ165-210045-
PORT HEIDEN TO CAPE SARICHEF-
401 AM AKDT THU APR 20 2017

.TODAY...VARIABLE WIND 10 KT. SEAS 3 FT.
.TONIGHT...E WIND 20 KT. SEAS 3 FT.
.FRI...E WIND 15 KT EXCEPT E 20 KT FROM PORT MOLLER E. SEAS 3 FT.
.FRI NIGHT...E WIND 25 KT. SEAS 5 FT.
.SAT...E WIND 30 KT. SEAS 7 FT.
.SUN...E WIND 20 KT. SEAS 5 FT.
.MON...E WIND 15 KT. SEAS 3 FT.

$$

PKZ170-210045-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
401 AM AKDT THU APR 20 2017

...SMALL CRAFT ADVISORY FRIDAY...

.TODAY...VARIABLE WIND 10 KT. SEAS 4 FT.
.TONIGHT...SE WIND 15 KT. SEAS 3 FT.
.FRI...SE WIND 25 KT. SEAS 5 FT.
.FRI NIGHT...E WIND 30 KT. SEAS 6 FT.
.SAT...E WIND 25 KT. SEAS 6 FT.
.SUN THROUGH MON...E WIND 15 KT. SEAS 5 FT.

$$

PKZ171-210045-
UNALASKA BAY-
401 AM AKDT THU APR 20 2017

.TODAY...NW WIND 10 KT IN THE MORNING BECOMING VARIABLE LESS THAN
10 KT. SEAS 3 FT.
.TONIGHT...E WIND 10 KT. SEAS 2 FT.
.FRI...SE WIND 15 KT. SEAS 2 FT.
.FRI NIGHT...SE WIND 15 KT. SEAS 2 FT.
.SAT...E WIND 15 KT. SEAS 2 FT.
.SUN...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.
.MON...SE WIND 10 KT. SEAS 2 FT.

$$

PKZ172-210045-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
401 AM AKDT THU APR 20 2017

...SMALL CRAFT ADVISORY FRIDAY...

.TODAY...VARIABLE WIND 10 KT. SEAS 5 FT.
.TONIGHT...SE WIND 15 KT. SEAS 4 FT.
.FRI...E WIND 25 KT. SEAS 6 FT.
.FRI NIGHT...E WIND 30 KT. SEAS 9 FT.
.SAT...E WIND 25 KT. SEAS 9 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 10 FT.
.MON...SE WIND 15 KT. SEAS 10 FT.

$$

PKZ173-210045-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
401 AM AKDT THU APR 20 2017

...GALE WARNING FRIDAY...

.TODAY...VARIABLE WIND 10 KT. SEAS 4 FT.
.TONIGHT...VARIABLE WIND 10 KT BECOMING SE 20 KT AFTER MIDNIGHT.
SEAS 4 FT.
.FRI...SE WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS 6
FT BUILDING TO 12 FT IN THE AFTERNOON. RAIN.
.FRI NIGHT...SE WIND 40 KT. SEAS 14 FT.
.SAT...E WIND 30 KT. SEAS 11 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 5 FT.
.MON...E WIND 15 KT. SEAS 6 FT.

$$

PKZ174-210045-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
401 AM AKDT THU APR 20 2017

...GALE WARNING FRIDAY...

.TODAY...VARIABLE WIND 10 KT. SEAS 7 FT.
.TONIGHT...SE WIND 15 KT INCREASING TO 25 KT AFTER MIDNIGHT. SEAS
6 FT.
.FRI...SE WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS
14 FT. RAIN.
.FRI NIGHT...SE WIND 35 KT. SEAS 14 FT.
.SAT...SE WIND 25 KT. SEAS 12 FT.
.SUN THROUGH MON...S WIND 15 KT. SEAS 11 FT.

$$

PKZ175-210045-
SEGUAM ISLAND TO ADAK BERING SIDE-
401 AM AKDT THU APR 20 2017

...GALE WARNING FRIDAY...

.TODAY...E WIND 15 KT. SEAS 4 FT.
.TONIGHT...SE WIND 25 KT. SEAS 6 FT. RAIN AND SNOW.
.FRI...E WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS 8
FT BUILDING TO 13 FT IN THE AFTERNOON. RAIN AND SNOW.
.FRI NIGHT...SE WIND 40 KT. SEAS 14 FT.
.SAT...E WIND 20 KT. SEAS 9 FT.
.SUN THROUGH MON...NE WIND 15 KT. SEAS 6 FT.

$$

PKZ176-210045-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
401 AM AKDT THU APR 20 2017

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...SE WIND 15 KT. SEAS 6 FT.
.TONIGHT...SE WIND 25 KT INCREASING TO 35 KT AFTER MIDNIGHT. SEAS
6 FT BUILDING TO 11 FT AFTER MIDNIGHT. RAIN AND SNOW.
.FRI...SE WIND 35 KT. SEAS 15 FT. RAIN.
.FRI NIGHT...S WIND 25 KT. SEAS 14 FT.
.SAT...SE WIND 15 KT. SEAS 12 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 10 FT.
.MON...N WIND 15 KT. SEAS 7 FT.

$$

PKZ177-210045-
ADAK TO KISKA-
401 AM AKDT THU APR 20 2017

...GALE WARNING THROUGH FRIDAY...

.TODAY...E WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. SEAS
8 FT.
.TONIGHT...E WIND 40 KT. SEAS 10 FT BERING SIDE...18 FT PAC SIDE.
.FRI...E WIND 35 KT. SEAS 16 FT.
.FRI NIGHT...E WIND 30 KT. SEAS 12 FT.
.SAT...SE WIND 20 KT. SEAS 11 FT.
.SUN THROUGH MON...N WIND 20 KT. SEAS 9 FT.

$$

PKZ178-210045-
KISKA TO ATTU-
401 AM AKDT THU APR 20 2017

...GALE WARNING THROUGH FRIDAY...

.TODAY...E WIND INCREASING TO 40 KT. SEAS BUILDING TO 16 FT.
.TONIGHT...E WIND 40 KT. SEAS 20 FT.
.FRI...NE WIND 35 KT. SEAS 19 FT.
.FRI NIGHT...NE WIND 35 KT. SEAS 16 FT.
.SAT THROUGH SUN...NE WIND 30 KT. SEAS 14 FT.
.MON...N WIND 25 KT. SEAS 12 FT.

$$

PKZ179-210045-
PRIBILOF ISLANDS NEAR SHORE WATERS-
401 AM AKDT THU APR 20 2017

.TODAY...VARIABLE WIND 10 KT. SEAS 4 FT. PATCHY FOG.
.TONIGHT...E WIND 15 KT. SEAS 3 FT.
.FRI...E WIND 20 KT. SEAS 4 FT.
.FRI NIGHT...E WIND 25 KT. SEAS 6 FT.
.SAT...E WIND 25 KT. SEAS 7 FT.
.SUN...E WIND 20 KT. SEAS 6 FT.
.MON...E WIND 15 KT. SEAS 4 FT.

$$

PKZ180-210045-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
401 AM AKDT THU APR 20 2017

.TODAY...SE WIND 10 KT BECOMING E IN THE AFTERNOON. SEAS IN ICE
FREE WATERS 2 FT. PATCHY FOG AND FREEZING FOG.
.TONIGHT...E WIND 15 KT. SEAS IN ICE FREE WATERS 2 FT. PATCHY
FREEZING FOG.
.FRI...E WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.
.FRI NIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.SAT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 9 FT.
.SUN...E WIND 25 KT. SEAS IN ICE FREE WATERS 6 FT.
.MON...E WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.

$$

PKZ181-210045-
NORTH AND WEST OF NUNIVAK ISLAND-
401 AM AKDT THU APR 20 2017

.TODAY...NE WIND 15 KT. SEAS IN ICE FREE WATERS 1 FOOT.
.TONIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 2 FT.
.FRI...E WIND 20 KT. SEAS IN ICE FREE WATERS 2 FT. PATCHY FREEZING
FOG.
.FRI NIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 2 FT.
.SAT THROUGH SUN...NE WIND 25 KT. SEAS IN ICE FREE WATERS 4 FT.
.MON...NE WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT.

$$

PKZ185-210045-
SAINT MATTHEW ISLAND WATERS-
401 AM AKDT THU APR 20 2017

...SMALL CRAFT ADVISORY FRIDAY...

.TODAY...NE WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.TONIGHT...NE WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.FRI...E WIND 20 KT E OF SAINT MATTHEW ISLAND...NE 25 KT W OF
SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 6 FT.
.FRI NIGHT...E WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.
.SAT THROUGH MON...NE WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT.

$$

470 
FZAK52 PAFC 202336
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
336 PM AKDT THU APR 20 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.

PKZ199-211230-
336 PM AKDT THU APR 20 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A FRONT OVER THE WESTERN AND CENTRAL ALEUTIANS WILL STRENGTHEN 
THROUGH TONIGHT...THEN PUSH NORTH INTO THE WESTERN AND CENTRAL
BERING SEA THROUGH FRI NIGHT. A 994 MB LOW MOVES FROM 285 NM 
SOUTHEAST OF SAND POINT SAT MORNING TO 75 NM SOUTH OF SAND POINT 
SAT AFTERNOON.

$$

PKZ150-211230-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
336 PM AKDT THU APR 20 2017

...GALE WARNING FRIDAY NIGHT...

.TONIGHT...E WIND 20 KT. SEAS 5 FT.
.FRI...NE WIND 30 KT. SEAS 10 FT.
.FRI NIGHT...NE WIND 35 KT. SEAS 14 FT. RAIN.
.SAT...E WIND 30 KT. SEAS 13 FT.
.SAT NIGHT...E WIND 25 KT. SEAS 11 FT.
.SUN THROUGH MON...E WIND 15 KT. SEAS 8 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 7 FT.

$$

PKZ155-211230-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
336 PM AKDT THU APR 20 2017

...SMALL CRAFT ADVISORY FRIDAY NIGHT...

.TONIGHT...E WIND 15 KT. SEAS 4 FT.
.FRI...NE WIND 20 KT. SEAS 6 FT.
.FRI NIGHT...NE WIND 25 KT...EXCEPT NE 15 KT W OF THE SHUMAGIN
ISLANDS. SEAS 11 FT...EXCEPT 7 FT W OF THE SHUMAGIN ISLANDS.
.SAT...NE WIND 25 KT. SEAS 10 FT.
.SAT NIGHT...SE WIND 20 KT. SEAS 9 FT.
.SUN...SE WIND 15 KT. SEAS 9 FT.
.MON...SE WIND 10 KT. SEAS 8 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 6 FT.

$$

PKZ160-211230-
BRISTOL BAY-
336 PM AKDT THU APR 20 2017

...SMALL CRAFT ADVISORY FRIDAY NIGHT...

.TONIGHT...E WIND 15 KT. SEAS 3 FT.
.FRI...NE WIND 20 KT. SEAS 4 FT.
.FRI NIGHT...NE WIND 15 KT INCREASING TO 25 KT AFTER MIDNIGHT.
SEAS 4 FT.
.SAT AND SAT NIGHT...E WIND 30 KT. SEAS 6 FT.
.SUN...E WIND 25 KT. SEAS 3 FT.
.MON...E WIND 15 KT. SEAS 3 FT.
.TUE...NE WIND 10 KT. SEAS 2 FT.

$$

PKZ165-211230-
PORT HEIDEN TO CAPE SARICHEF-
336 PM AKDT THU APR 20 2017

...SMALL CRAFT ADVISORY FRIDAY NIGHT...

.TONIGHT...E WIND 20 KT...EXCEPT VARIABLE 10 KT W OF PORT MOLLER. 
SEAS 3 FT.
.FRI...E WIND 15 KT. SEAS 3 FT. PATCHY FOG.
.FRI NIGHT...E WIND 15 KT INCREASING TO 25 KT AFTER MIDNIGHT.
SEAS 4 FT BUILDING TO 6 FT AFTER MIDNIGHT.
.SAT AND SAT NIGHT...E WIND 30 KT. SEAS 8 FT.
.SUN...E WIND 20 KT. SEAS 7 FT.
.MON...E WIND 15 KT. SEAS 3 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 2 FT.

$$

PKZ170-211230-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
336 PM AKDT THU APR 20 2017

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

.TONIGHT...SE WIND 15 KT. SEAS 3 FT.
.FRI...SE WIND 25 KT. SEAS 4 FT.
.FRI NIGHT...SE WIND 30 KT. SEAS 6 FT.
.SAT...E WIND 25 KT. SEAS 6 FT.
.SAT NIGHT...E WIND 15 KT. SEAS 6 FT.
.SUN THROUGH MON...E WIND 15 KT. SEAS 5 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 3 FT.

$$

PKZ171-211230-
UNALASKA BAY-
336 PM AKDT THU APR 20 2017

.TONIGHT...VARIABLE LESS THAN 10 KT BECOMING SE 10 KT 
AFTER MIDNIGHT. SEAS 2 FT.
.FRI AND FRI NIGHT...SE WIND 15 KT. SEAS 2 FT.
.SAT...E WIND 15 KT. SEAS 2 FT.
.SAT NIGHT...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.
.SUN THROUGH MON...SE WIND 10 KT. SEAS 2 FT.
.TUE...VARIABLE WIND LESS THAN 10 KT. SEAS 1 FT.

$$

PKZ172-211230-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
336 PM AKDT THU APR 20 2017

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

.TONIGHT...SE WIND 15 KT. SEAS 4 FT.
.FRI...E WIND 25 KT. SEAS 6 FT.
.FRI NIGHT...E WIND 30 KT. SEAS 9 FT.
.SAT...E WIND 25 KT. SEAS 9 FT.
.SAT NIGHT...SE WIND 15 KT. SEAS 10 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 10 FT.
.MON...SE WIND 15 KT. SEAS 10 FT.
.TUE...SW WIND 15 KT. SEAS 6 FT.

$$

PKZ173-211230-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
336 PM AKDT THU APR 20 2017

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

.TONIGHT...VARIABLE WIND 10 KT BECOMING SE 20 KT AFTER MIDNIGHT.
SEAS 4 FT.
.FRI...SE WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. 
SEAS 6 FT BUILDING TO 13 FT IN THE AFTERNOON.
.FRI NIGHT...SE WIND 40 KT. SEAS 14 FT. RAIN.
.SAT...E WIND 30 KT. SEAS 11 FT.
.SAT NIGHT...E WIND 15 KT. SEAS 7 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 6 FT.
.MON...E WIND 15 KT. SEAS 6 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 4 FT.

$$

PKZ174-211230-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
336 PM AKDT THU APR 20 2017

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

.TONIGHT...SE WIND 15 KT INCREASING TO 25 KT AFTER MIDNIGHT.
SEAS 7 FT.
.FRI...SE WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. 
SEAS 9 FT BUILDING TO 14 FT IN THE AFTERNOON.
.FRI NIGHT...SE WIND 35 KT. SEAS 14 FT. RAIN.
.SAT...SE WIND 25 KT. SEAS 11 FT.
.SAT NIGHT...SE WIND 15 KT. SEAS 10 FT.
.SUN THROUGH MON...S WIND 15 KT. SEAS 10 FT.
.TUE...SW WIND 15 KT. SEAS 7 FT.

$$

PKZ175-211230-
SEGUAM ISLAND TO ADAK BERING SIDE-
336 PM AKDT THU APR 20 2017

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

.TONIGHT...E WIND 20 KT BECOMING SE 30 KT AFTER MIDNIGHT. 
SEAS 6 FT.
.FRI...E WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. 
SEAS 8 FT BUILDING TO 14 FT IN THE AFTERNOON. RAIN.
.FRI NIGHT...SE WIND 40 KT DIMINISHING TO 25 KT AFTER MIDNIGHT.
SEAS 14 FT SUBSIDING TO 9 FT AFTER MIDNIGHT.
.SAT...SE WIND 20 KT. SEAS 8 FT.
.SAT NIGHT...E WIND 15 KT. SEAS 6 FT.
.SUN THROUGH MON...NE WIND 15 KT. SEAS 6 FT.
.TUE...N WIND 15 KT. SEAS 5 FT.

$$

PKZ176-211230-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
336 PM AKDT THU APR 20 2017

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...SE WIND 25 KT INCREASING TO 35 KT AFTER MIDNIGHT. 
SEAS 6 FT BUILDING TO 11 FT AFTER MIDNIGHT.
.FRI...SE WIND 35 KT. SEAS 14 FT. RAIN.
.FRI NIGHT...S WIND 25 KT. SEAS 13 FT.
.SAT...SE WIND 15 KT. SEAS 12 FT.
.SAT NIGHT...SE WIND 10 KT. SEAS 10 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 10 FT.
.MON...N WIND 15 KT. SEAS 7 FT.
.TUE...NW WIND 15 KT. SEAS 7 FT.

$$

PKZ177-211230-
ADAK TO KISKA-
336 PM AKDT THU APR 20 2017

...GALE WARNING TONIGHT...

.TONIGHT...E WIND 40 KT. SEAS 11 FT BERING SIDE...18 FT PACIFIC 
SIDE.
.FRI...E WIND 30 KT. SEAS 16 FT.
.FRI NIGHT...E WIND 30 KT BECOMING SE 20 KT AFTER MIDNIGHT.
SEAS 12 FT.
.SAT...SE WIND 20 KT. SEAS 11 FT.
.SAT NIGHT...E WIND 20 KT. SEAS 11 FT.
.SUN...NE WIND 15 KT. SEAS 9 FT.
.MON THROUGH TUE...N WIND 20 KT. SEAS 8 FT.

$$

PKZ178-211230-
KISKA TO ATTU-
336 PM AKDT THU APR 20 2017

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...E WIND 40 KT. SEAS 15 FT BERING SIDE...21 FT PACIFIC
SIDE.
.FRI...NE WIND 35 KT. SEAS 15 FT BERING SIDE...20 FT PACIFIC SIDE.
.FRI NIGHT...NE WIND 30 KT. SEAS 15 FT.
.SAT...N WIND 30 KT. SEAS 15 FT.
.SAT NIGHT...E WIND 30 KT. SEAS 13 FT.
.SUN THROUGH TUE...N WIND 25 KT. SEAS 11 FT.

$$

PKZ179-211230-
PRIBILOF ISLANDS NEAR SHORE WATERS-
336 PM AKDT THU APR 20 2017

...SMALL CRAFT ADVISORY FRIDAY NIGHT...

.TONIGHT...VARIABLE WIND 10 KT BECOMING SE 15 KT AFTER MIDNIGHT. 
SEAS 4 FT. 
.FRI...SE WIND 20 KT. SEAS 4 FT.
.FRI NIGHT...E WIND 25 KT. SEAS 7 FT.
.SAT AND SAT NIGHT...NE WIND 25 KT. SEAS 8 FT.
.SUN...E WIND 25 KT. SEAS 8 FT.
.MON THROUGH TUE...NE WIND 15 KT. SEAS 4 FT.

$$

PKZ180-211230-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
336 PM AKDT THU APR 20 2017

.TONIGHT...E WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.FRI...E WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.
.FRI NIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.SAT AND SAT NIGHT...E WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT.
.SUN...E WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.
.MON...E WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.TUE...NE WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT.

$$

PKZ181-211230-
NORTH AND WEST OF NUNIVAK ISLAND-
336 PM AKDT THU APR 20 2017

.TONIGHT...E WIND INCREASING TO 20 KT. SEAS IN ICE FREE WATERS 2 FT.
.FRI...E WIND 20 KT. SEAS IN ICE FREE WATERS 2 FT. PATCHY FREEZING
FOG.
.FRI NIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 2 FT.
.SAT...NE WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT.
.SAT NIGHT...NE WIND 25 KT. SEAS IN ICE FREE WATERS 3 FT.
.SUN...NE WIND 25 KT. SEAS IN ICE FREE WATERS 3 FT.
.MON THROUGH TUE...NE WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT.

$$

PKZ185-211230-
SAINT MATTHEW ISLAND WATERS-
336 PM AKDT THU APR 20 2017

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

.TONIGHT...NE WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.FRI...E WIND 20 KT E OF SAINT MATTHEW ISLAND...NE 25 KT W OF
SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 6 FT.
.FRI NIGHT...E WIND 20 KT E OF SAINT MATTHEW ISLAND...E 25 KT W OF
SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 7 FT.
.SAT AND SAT NIGHT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 11 FT.
.SUN THROUGH TUE...NE WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT.

$$

210 
FZAK52 PAFC 211200
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
400 AM AKDT FRI APR 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.

PKZ199-220045-
400 AM AKDT FRI APR 21 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 978 MB LOW 220 NM SOUTH OF SHEMYA WILL REMAIN IN PLACE 
TONIGHT...THEN SHIFT TO 250 NM SOUTHEAST OF SHEMYA AT 984 MB BY 
SAT NIGHT. A FRONT OVER THE SOUTHERN GULF THIS MORNING WILL CROSS 
THE ALASKA PENINSULA TONIGHT AND MOVE TO THE EASTERN BERING SAT 
AFTERNOON. THE ASSOCIATED NORTH PACIFIC LOW WILL MOVE TO 170 NM 
SOUTHEAST OF SAND POINT AT 999 MB SAT MORNING...THEN DISSIPATE 
NEAR DUTCH HARBOR SAT AFTERNOON.

$$

PKZ150-220045-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
400 AM AKDT FRI APR 21 2017

...GALE WARNING TONIGHT...

.TODAY...NE WIND INCREASING TO 30 KT. SEAS BUILDING TO 9 FT.
.TONIGHT...NE WIND 35 KT. SEAS 13 FT. RAIN.
.SAT...E WIND 30 KT. SEAS 13 FT. RAIN.
.SAT NIGHT...E WIND 25 KT. SEAS 12 FT.
.SUN THROUGH MON...SE WIND 15 KT. SEAS 8 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 6 FT.

$$

PKZ155-220045-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
400 AM AKDT FRI APR 21 2017

...SMALL CRAFT ADVISORY TONIGHT AND SATURDAY...

.TODAY...NE WIND INCREASING TO 20 KT. SEAS 6 FT.
.TONIGHT...NE WIND 25 KT. SEAS 10 FT.
.SAT...NE WIND 25 KT. SEAS 10 FT. RAIN.
.SAT NIGHT...SE WIND 20 KT. SEAS 10 FT.
.SUN...SE WIND 15 KT. SEAS 9 FT.
.MON...VARIABLE WIND 10 KT. SEAS 8 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 7 FT.

$$

PKZ160-220045-
BRISTOL BAY-
400 AM AKDT FRI APR 21 2017

...SMALL CRAFT ADVISORY TONIGHT AND SATURDAY...

.TODAY...NE WIND INCREASING TO 20 KT. SEAS 3 FT.
.TONIGHT...NE WIND 25 KT. SEAS 4 FT.
.SAT...NE WIND 30 KT. SEAS 6 FT.
.SAT NIGHT...E WIND 30 KT. SEAS 5 FT.
.SUN...E WIND 25 KT. SEAS 4 FT.
.MON...E WIND 15 KT. SEAS 3 FT.
.TUE...E WIND 10 KT. SEAS 2 FT.

$$

PKZ165-220045-
PORT HEIDEN TO CAPE SARICHEF-
400 AM AKDT FRI APR 21 2017

...SMALL CRAFT ADVISORY TONIGHT AND SATURDAY...

.TODAY...E WIND INCREASING TO 20 KT. SEAS 3 FT.
.TONIGHT...E WIND 20 KT. FROM PORT MOLLER E, E WIND 20 KT BECOMING
NE 30 KT AFTER MIDNIGHT. SEAS 5 FT.
.SAT...NE WIND 30 KT. SEAS 8 FT.
.SAT NIGHT...E WIND 30 KT. SEAS 8 FT.
.SUN...E WIND 20 KT. SEAS 6 FT.
.MON...E WIND 15 KT. SEAS 3 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 3 FT.

$$

PKZ170-220045-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
400 AM AKDT FRI APR 21 2017

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...SE WIND INCREASING TO 25 KT. SEAS 4 FT.
.TONIGHT...SE WIND 30 KT. SEAS 6 FT.
.SAT...E WIND 25 KT. SEAS 6 FT.
.SAT NIGHT...E WIND 15 KT. SEAS 6 FT.
.SUN...SE WIND 15 KT. SEAS 6 FT.
.MON THROUGH TUE...VARIABLE WIND 10 KT. SEAS 4 FT.

$$

PKZ171-220045-
UNALASKA BAY-
400 AM AKDT FRI APR 21 2017

.TODAY...VARIABLE WIND TO 10 KT EARLY BECOMING SE WIND 15 KT. SEAS 2
FT.
.TONIGHT...SE WIND 15 KT. SEAS 2 FT.
.SAT...E WIND 15 KT DIMINISHING TO 10 KT IN THE AFTERNOON. SEAS
2 FT.
.SAT NIGHT...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.
.SUN THROUGH TUE...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.

$$

PKZ172-220045-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
400 AM AKDT FRI APR 21 2017

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...E WIND INCREASING TO 25 KT. SEAS 6 FT.
.TONIGHT...E WIND 30 KT. SEAS 9 FT.
.SAT...E WIND 25 KT. SEAS 10 FT.
.SAT NIGHT...VARIABLE WIND 10 KT. SEAS 10 FT.
.SUN THROUGH MON...S WIND 15 KT. SEAS 10 FT.
.TUE...SW WIND 15 KT. SEAS 7 FT.

$$

PKZ173-220045-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
400 AM AKDT FRI APR 21 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS
7 FT BUILDING TO 12 FT IN THE AFTERNOON.
.TONIGHT...SE WIND 40 KT. SEAS 14 FT. RAIN.
.SAT...SE WIND 30 KT. SEAS 11 FT.
.SAT NIGHT...SE WIND 15 KT. SEAS 7 FT.
.SUN THROUGH MON...VARIABLE WIND 10 KT. SEAS 5 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 6 FT.

$$

PKZ174-220045-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
400 AM AKDT FRI APR 21 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE WIND INCREASING TO 35 KT. SEAS BUILDING TO 14 FT.
.TONIGHT...SE WIND 35 KT. SEAS 14 FT. RAIN.
.SAT...SE WIND 30 KT DIMINISHING TO 15 KT IN THE AFTERNOON. SEAS
12 FT.
.SAT NIGHT...VARIABLE WIND 10 KT. SEAS 11 FT.
.SUN THROUGH TUE...SW WIND 15 KT. SEAS 9 FT.

$$

PKZ175-220045-
SEGUAM ISLAND TO ADAK BERING SIDE-
400 AM AKDT FRI APR 21 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...E WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS
BUILDING TO 13 FT. PATCHY FOG. RAIN.
.TONIGHT...SE WIND 40 KT DIMINISHING TO 30 KT AFTER MIDNIGHT. SEAS
14 FT.
.SAT...SE WIND 20 KT. SEAS 9 FT.
.SAT NIGHT...E WIND 15 KT. SEAS 7 FT.
.SUN...E WIND 15 KT. SEAS 6 FT.
.MON THROUGH TUE...NW WIND 15 KT. SEAS 6 FT.

$$

PKZ176-220045-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
400 AM AKDT FRI APR 21 2017

...GALE WARNING TODAY...

.TODAY...SE WIND 35 KT. SEAS 14 FT. PATCHY FOG. RAIN.
.TONIGHT...S WIND 25 KT. SEAS 14 FT.
.SAT...S WIND 15 KT. SEAS 13 FT.
.SAT NIGHT...VARIABLE WIND 10 KT. SEAS 12 FT.
.SUN...NE WIND 15 KT. SEAS 11 FT.
.MON THROUGH TUE...W WIND 15 KT. SEAS 8 FT.

$$

PKZ177-220045-
ADAK TO KISKA-
400 AM AKDT FRI APR 21 2017

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...E WIND 30 KT. SEAS 15 FT. PATCHY FOG.
.TONIGHT...E WIND 30 KT BECOMING SE 20 KT AFTER MIDNIGHT. SEAS
13 FT.
.SAT...SE WIND 20 KT. SEAS 12 FT.
.SAT NIGHT...E WIND 20 KT. SEAS 12 FT.
.SUN...N WIND 20 KT. SEAS 11 FT.
.MON...NW WIND 15 KT. SEAS 8 FT.
.TUE...N WIND 20 KT. SEAS 8 FT.

$$

PKZ178-220045-
KISKA TO ATTU-
400 AM AKDT FRI APR 21 2017

...GALE WARNING THROUGH SATURDAY...

.TODAY...NE WIND 35 KT. SEAS 19 FT.
.TONIGHT...NE WIND 35 KT. SEAS 16 FT.
.SAT...N WIND 35 KT. SEAS 17 FT.
.SAT NIGHT...E WIND 30 KT. SEAS 13 FT.
.SUN THROUGH MON...NE WIND 30 KT. SEAS 14 FT.
.TUE...N WIND 25 KT. SEAS 10 FT.

$$

PKZ179-220045-
PRIBILOF ISLANDS NEAR SHORE WATERS-
400 AM AKDT FRI APR 21 2017

...SMALL CRAFT ADVISORY TONIGHT AND SATURDAY...

.TODAY...E WIND INCREASING TO 20 KT. SEAS BUILDING TO 4 FT. PATCHY 
FOG.
.TONIGHT...E WIND 25 KT. SEAS 6 FT. PATCHY FOG AND FREEZING FOG.
.SAT...E WIND 25 KT. SEAS 7 FT. RAIN.
.SAT NIGHT...NE WIND 25 KT. SEAS 9 FT.
.SUN...E WIND 25 KT. SEAS 8 FT.
.MON...NE WIND 15 KT. SEAS 4 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 3 FT.

$$

PKZ180-220045-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
400 AM AKDT FRI APR 21 2017

...SMALL CRAFT ADVISORY TONIGHT AND SATURDAY...

.TODAY...E WIND INCREASING TO 20 KT. SEAS IN ICE FREE WATERS 4 FT. 
PATCHY FOG.
.TONIGHT...E WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT.
.SAT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT.
.SAT NIGHT...E WIND 30 KT. SEAS IN ICE FREE WATERS 8 FT.
.SUN...E WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.
.MON...E WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.TUE...NE WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT.

$$

PKZ181-220045-
NORTH AND WEST OF NUNIVAK ISLAND-
400 AM AKDT FRI APR 21 2017

.TODAY...E WIND 20 KT. SEAS IN ICE FREE WATERS 2 FT. PATCHY FOG.
.TONIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 2 FT. PATCHY
FREEZING FOG.
.SAT...NE WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT.
.SAT NIGHT...NE WIND 25 KT. SEAS IN ICE FREE WATERS 4 FT.
.SUN...NE WIND 25 KT. SEAS IN ICE FREE WATERS 3 FT.
.MON THROUGH TUE...NE WIND 15 KT. SEAS IN ICE FREE WATERS 2 FT.

$$

PKZ185-220045-
SAINT MATTHEW ISLAND WATERS-
400 AM AKDT FRI APR 21 2017

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...E WIND 20 KT E OF SAINT MATTHEW ISLAND...NE 25 KT W OF
SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 6 FT.
.TONIGHT...E WIND 20 KT E OF SAINT MATTHEW ISLAND...E 25 KT W OF
SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 7 FT. PATCHY
FREEZING FOG.
.SAT...E WIND 20 KT E OF SAINT MATTHEW ISLAND...E 30 KT W OF SAINT
MATTHEW ISLAND. SEAS IN ICE FREE WATERS 9 FT.
.SAT NIGHT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 11 FT.
.SUN...NE WIND 35 KT. SEAS IN ICE FREE WATERS 11 FT.
.MON THROUGH TUE...NE WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
420 AM AKDT Wed Apr 19 2017

.ANALYSIS AND UPPER LEVELS...
Little overall change has happened over Mainland Alaska in the
last 48 hours as the upper level jet dives well south of the
area. This has allowed for broad high pressure to continue to
bring sunny skies to much of the Mainland this morning with light
winds. Over the Eastern Bering, a slowly weakening and dry upper
level trough continues to bring stratus but little in the way of
precipitation to the area. Well west of the AOR the next system
can be seen approaching the Western Aleutians, but with the jet
moving south of the area this low will very slowly move through
the Western Bering over the course of the next 48 hours.

&&

.MODEL DISCUSSION...
Models once again remain in good synoptic agreement in the
current stagnant pattern. Starting Friday there remains good
agreement with a pattern change in the Gulf and the Bering that
will bring more active weather to the area into this weekend.

&&

.AVIATION...
PANC...VFR conditions and light and variable winds will persist
into Thursday.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...

Generally fair skies and mild afternoon temperatures will persist
across the Southcentral Mainland through Thursday. Relatively
weak gap flows are expected through the Matanuska Valley,
Thompson Pass, and the Copper River Delta through tonight.
Thompson Pass and Copper River Basin flows will weaken some
Thursday, but will increase some again Thursday night. Elsewhere,
afternoon and evening sea breezes will be the general rule
through Thursday. With the exception of a few low probability
showers along the Chugach, Talkeetna, and Kenai Mountains much of
Southcentral will remain on the dry side. A front approaching the
southern Gulf Thursday night will increase the easterly flow over
Kodiak Island and bring increased chances of rain or mixed
precipitation types.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...

An upper level low currently centered right along the Kuskokwim
Delta coast will continue to drop south into the far eastern
Bering Sea this afternoon. Satellite imagery already shows that a
bulk of the cloud cover associated with this feature has moved
offshore with just a few clouds lingering from Cape Newenham to
Mekoryuk. Another period of benign and spring-like weather is on
tap for Southwest Alaska through the remainder of the week with
high pressure settling in across the region. Temperatures each of
the upcoming days should be a degree or two warmer than the
previous day which should allow high temperatures to warm into
the upper 40s to mid 50s by end of the week.

&&

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

A weak upper level low will track south across the eastern Bering
Sea through Thursday morning which will bring a few snow showers
to portions of the Alaska Peninsula. Some low stratus has been
observed along the Alaska Peninsula and Pribilof Islands but as
the upper low tracks south, high pressure will quickly fill in
behind and allow for some clearing of clouds today and Thursday.
The central Bering Sea will remain under the influence of high
pressure which will keep skies largely mostly sunny through the
remainder of the week. A frontal boundary associated with a low
pressure system moving into the North Pacific from eastern Russia
will bring gale force winds to the western Aleutians on Thursday.
Another low pressure system will develop along the frontal
boundary and swing toward Shemya late Thursday. Much of the
sensible weather associated with these features will be winds in
the 30 to 35 kt range and periods of light to moderate rainfall.

&&

.LONG TERM FORECAST (Days 3 through 7)...

On late Thursday and Friday, mainland AK will be under high
pressure, with a small craft to gale force low near the central
Aleutians. A low will be in the southern Gulf/north Pacific, with
resultant northerly flow keeping much of southcentral AK dry,
except for a few evening showers near mountain ranges.

This weekend into early next week, a series of lows, triple point
lows, and troughs will steadily move along 50 N. This will bring
mainly rain to the Aleutians and the North Gulf coast, with some
afternoon and evening shower activity for inland mountains into
early next week.

The forecast utilizes some gfs and gem through the weekend with
the ensemble solution of WPC next week.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Gale 178.

&&

SYNOPSIS AND MODEL DISCUSSION...DEK
SOUTHCENTRAL ALASKA...RMC
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...MC
LONG TERM...DS