Gale Warning 289, NWS Anchorage, AK

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.

$$

746 
FZAK52 PAFC 212310
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
310 PM 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.

PKZ199-221215-
310 PM AKDT FRI APR 21 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 978 MB LOW 260 NM SOUTH OF KISKA FRI AFTERNOON WILL MOVE TO 
100 NM SOUTH OF ATKA AND WEAKEN SUN AFTERNOON. A FRONT OVER THE 
WESTERN GULF OF ALASKA WILL CROSS THE ALASKA PENINSULA SAT NIGHT 
AND MOVE TO THE EASTERN BERING THROUGH SUN NIGHT.

$$

PKZ150-221215-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
310 PM AKDT FRI APR 21 2017

...GALE WARNING TONIGHT...

.TONIGHT...NE WIND 35 KT. SEAS 13 FT. RAIN.
.SAT...E WIND 30 KT. SEAS 12 FT. RAIN.
.SAT NIGHT...SE WIND 25 KT. SEAS 11 FT.
.SUN...E WIND 20 KT. SEAS 9 FT.
.SUN NIGHT...E WIND 15 KT. SEAS 8 FT.
.MON THROUGH TUE...VARIABLE WIND 10 KT. SEAS 7 FT.
.WED...S WIND 15 KT. SEAS 8 FT.

$$

PKZ155-221215-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
310 PM AKDT FRI APR 21 2017

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

.TONIGHT...NE WIND 25 KT. SEAS 10 FT.
.SAT...NE WIND 20 KT. SEAS 10 FT.
.SAT NIGHT...SE WIND 15 KT EXCEPT SE 20 KT FROM THE SHUMAGIN
ISLANDS E. SEAS 9 FT.
.SUN AND SUN NIGHT...SE WIND 15 KT. SEAS 9 FT.
.MON...VARIABLE WIND 10 KT. SEAS 8 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 7 FT.
.WED...SW WIND 15 KT. SEAS 8 FT.

$$

PKZ160-221215-
BRISTOL BAY-
310 PM AKDT FRI APR 21 2017

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

.TONIGHT...E WIND 25 KT. SEAS 4 FT.
.SAT...NE WIND 30 KT. SEAS 6 FT.
.SAT NIGHT...E WIND 30 KT. SEAS 6 FT.
.SUN...E WIND 20 KT. SEAS 4 FT.
.SUN NIGHT...E WIND 15 KT. SEAS 3 FT.
.MON...E WIND 15 KT. SEAS 2 FT.
.TUE...E WIND 10 KT. SEAS 2 FT.
.WED...SW WIND 10 KT. SEAS 1 FOOT.

$$

PKZ165-221215-
PORT HEIDEN TO CAPE SARICHEF-
310 PM AKDT FRI APR 21 2017

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

.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...SE WIND 20 KT. SEAS 5 FT.
.SUN NIGHT...E WIND 15 KT. SEAS 4 FT.
.MON...E WIND 15 KT. SEAS 3 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 3 FT.
.WED...VARIABLE WIND 10 KT. SEAS 3 FT.

$$

PKZ170-221215-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
310 PM AKDT FRI APR 21 2017

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...SE WIND 25 KT. SEAS 6 FT.
.SAT...E WIND 25 KT. SEAS 6 FT.
.SAT NIGHT...E WIND 15 KT. SEAS 6 FT.
.SUN AND SUN NIGHT...SE WIND 15 KT. SEAS 6 FT.
.MON...SE WIND 15 KT. SEAS 4 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 3 FT.
.WED...SW WIND 15 KT. SEAS 4 FT.

$$

PKZ171-221215-
UNALASKA BAY-
310 PM AKDT FRI APR 21 2017

.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...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.
.SUN NIGHT...SE WIND 10 KT. SEAS 2 FT.
.MON...SE WIND 10 KT. SEAS 2 FT.
.TUE...VARIABLE WIND LESS THAN 10 KT. SEAS 1 FOOT.
.WED...SW WIND 10 KT. SEAS 1 FOOT.

$$

PKZ172-221215-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
310 PM AKDT FRI APR 21 2017

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

.TONIGHT...E WIND 25 KT. SEAS 9 FT.
.SAT...E WIND 25 KT. SEAS 10 FT.
.SAT NIGHT...VARIABLE WIND 10 KT. SEAS 10 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 9 FT.
.SUN NIGHT...SE WIND 15 KT. SEAS 9 FT.
.MON...S WIND 15 KT. SEAS 9 FT.
.TUE THROUGH WED...SW WIND 15 KT. SEAS 8 FT.

$$

PKZ173-221215-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
310 PM AKDT FRI APR 21 2017

...GALE WARNING TONIGHT...

.TONIGHT...SE WIND 40 KT. SEAS 14 FT. RAIN.
.SAT...E WIND 30 KT. SEAS 12 FT. RAIN.
.SAT NIGHT...E WIND 20 KT. SEAS 7 FT.
.SUN AND SUN NIGHT...SE WIND 15 KT. SEAS 6 FT.
.MON...SE WIND 15 KT. SEAS 6 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 6 FT.
.WED...W WIND 15 KT. SEAS 6 FT.

$$

PKZ174-221215-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
310 PM AKDT FRI APR 21 2017

...GALE WARNING TONIGHT...

.TONIGHT...SE WIND 35 KT. SEAS 15 FT. RAIN.
.SAT...SE WIND 30 KT DIMINISHING TO 15 KT IN THE AFTERNOON. SEAS
12 FT.
.SAT NIGHT...VARIABLE WIND 10 KT. SEAS 10 FT.
.SUN...SE WIND 20 KT. SEAS 11 FT.
.SUN NIGHT...S WIND 15 KT. SEAS 11 FT.
.MON...S WIND 15 KT. SEAS 10 FT.
.TUE...SW WIND 15 KT. SEAS 8 FT.
.WED...W WIND 20 KT. SEAS 8 FT.

$$

PKZ175-221215-
SEGUAM ISLAND TO ADAK BERING SIDE-
310 PM AKDT FRI APR 21 2017

...GALE WARNING TONIGHT...

.TONIGHT...SE WIND 40 KT DIMINISHING TO 30 KT AFTER MIDNIGHT. SEAS
15 FT. RAIN.
.SAT...SE WIND 20 KT. SEAS 9 FT.
.SAT NIGHT...E WIND 20 KT. SEAS 7 FT.
.SUN AND SUN NIGHT...NE WIND 20 KT. SEAS 7 FT.
.MON...N WIND 15 KT. SEAS 7 FT.
.TUE THROUGH WED...NW WIND 15 KT. SEAS 6 FT.

$$

PKZ176-221215-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
310 PM AKDT FRI APR 21 2017

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

.TONIGHT...S WIND 30 KT DIMINISHING TO 20 KT AFTER MIDNIGHT. SEAS
14 FT.
.SAT...SE WIND 15 KT. SEAS 12 FT.
.SAT NIGHT...SE WIND 15 KT. SEAS 10 FT.
.SUN...E WIND 25 KT. SEAS 11 FT.
.SUN NIGHT...E WIND 15 KT. SEAS 11 FT.
.MON THROUGH TUE...W WIND 15 KT. SEAS 8 FT.
.WED...W WIND 20 KT. SEAS 7 FT.

$$

PKZ177-221215-
ADAK TO KISKA-
310 PM AKDT FRI APR 21 2017

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

.TONIGHT...E WIND 30 KT DIMINISHING TO SE 20 KT AFTER MIDNIGHT. SEAS
13 FT.
.SAT...SE WIND 20 KT. SEAS 12 FT.
.SAT NIGHT...NE WIND 20 KT. SEAS 11 FT.
.SUN AND SUN NIGHT...N WIND 20 KT. SEAS 9 FT.
.MON...N WIND 15 KT. SEAS 9 FT.
.TUE THROUGH WED...NW WIND 20 KT. SEAS 8 FT.

$$

PKZ178-221215-
KISKA TO ATTU-
310 PM AKDT FRI APR 21 2017

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...NE WIND 35 KT. SEAS 17 FT. RAIN.
.SAT...NE WIND 40 KT DIMINISHING TO 30 KT IN THE AFTERNOON. E OF
SHEMYA...E WIND 15 KT. SEAS 18 FT DIMINISHING TO 12 FT.
.SAT NIGHT...NE WIND 30 KT. SEAS 13 FT.
.SUN AND SUN NIGHT...NE WIND 30 KT. SEAS 13 FT.
.MON...NE WIND 30 KT. SEAS 13 FT.
.TUE...N WIND 25 KT. SEAS 10 FT.
.WED...N WIND 20 KT. SEAS 9 FT.

$$

PKZ179-221215-
PRIBILOF ISLANDS NEAR SHORE WATERS-
310 PM AKDT FRI APR 21 2017

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

.TONIGHT...E WIND 25 KT. SEAS 6 FT. PATCHY FOG.
.SAT...E WIND 25 KT. SEAS 8 FT. RAIN.
.SAT NIGHT...E WIND 30 KT. SEAS 10 FT. RAIN AND SNOW.
.SUN...E WIND 25 KT. SEAS 9 FT.
.SUN NIGHT...E WIND 15 KT. SEAS 6 FT.
.MON...E WIND 15 KT. SEAS 4 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 3 FT.
.WED...NE WIND 15 KT. SEAS 4 FT.

$$

PKZ180-221215-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
310 PM AKDT FRI APR 21 2017

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

.TONIGHT...E WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT. PATCHY FOG.
.SAT...E WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT.
.SAT NIGHT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 8 FT.
.SUN...E WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT.
.SUN NIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 5 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.
.WED...NW WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT.

$$

PKZ181-221215-
NORTH AND WEST OF NUNIVAK ISLAND-
310 PM AKDT FRI APR 21 2017

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

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

$$

PKZ185-221215-
SAINT MATTHEW ISLAND WATERS-
310 PM AKDT FRI APR 21 2017

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

.TONIGHT...E WIND 20 KT E OF SAINT MATTHEW ISLAND...E 25 KT W OF
SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 6 FT. PATCHY
FREEZING FOG.
.SAT...E WIND 25 KT. SEAS IN ICE FREE WATERS 9 FT.
.SAT NIGHT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT.
.SUN...NE WIND 30 KT. SEAS IN ICE FREE WATERS 11 FT.
.SUN NIGHT...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.
.WED...N WIND 25 KT. SEAS IN ICE FREE WATERS 8 FT.

$$

697 
FZAK52 PAFC 221202
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
402 AM AKDT SAT APR 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.

PKZ199-230045-
402 AM AKDT SAT APR 22 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 977 MB LOW 250 NM SOUTHEAST OF SHEMYA WILL MOVE TO 170 NM SOUTH
OF ADAK AT 982 MB TONIGHT...THEN SHIFT TO 100 NM SOUTHEAST OF ADAK 
AT 978 MB SUN NIGHT. A FRONT APPROACHING BRISTOL BAY FROM THE GULF
WILL MOVE TO THE CENTRAL BERING TONIGHT AND WEAKEN THROUGH SUN 
NIGHT. 

$$

PKZ150-230045-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
402 AM AKDT SAT APR 22 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...E WIND 30 KT. GUSTS TO 45 KT NEAR SHELIKOF STRAIT IN THE
MORNING. SEAS 12 FT.
.TONIGHT...SE WIND 25 KT. SEAS 11 FT.
.SUN...E WIND 20 KT. SEAS 9 FT.
.SUN NIGHT...SE WIND 15 KT. SEAS 8 FT.
.MON THROUGH TUE...VARIABLE WIND 10 KT. SEAS 7 FT.
.WED...S WIND 15 KT. SEAS 7 FT.

$$

PKZ155-230045-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
402 AM AKDT SAT APR 22 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...NE WIND 25 KT. SEAS 10 FT.
.TONIGHT...SE WIND 20 KT. SEAS 8 FT.
.SUN...SE WIND 15 KT. SEAS 9 FT.
.SUN NIGHT...SE WIND 15 KT. SEAS 9 FT.
.MON THROUGH WED...S WIND 15 KT. SEAS 8 FT.

$$

PKZ160-230045-
BRISTOL BAY-
402 AM AKDT SAT APR 22 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...NE WIND 30 KT. SEAS 6 FT.
.TONIGHT...E WIND 30 KT. SEAS 6 FT.
.SUN...E WIND 25 KT. SEAS 4 FT.
.SUN NIGHT...E WIND 20 KT. SEAS 3 FT.
.MON...E WIND 20 KT. SEAS 3 FT.
.TUE...E WIND 10 KT. SEAS 2 FT.
.WED...S WIND 10 KT. SEAS 1 FOOT.

$$

PKZ165-230045-
PORT HEIDEN TO CAPE SARICHEF-
402 AM AKDT SAT APR 22 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NE WIND 30 KT. SEAS 8 FT.
.TONIGHT...E WIND 20 KT. FROM PORT MOLLER E, E WIND 30 KT
DIMINISHING TO 20 KT AFTER MIDNIGHT. SEAS 8 FT.
.SUN...E WIND 20 KT. SEAS 5 FT.
.SUN NIGHT...E WIND 20 KT. SEAS 4 FT.
.MON...E WIND 15 KT. SEAS 4 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 2 FT.
.WED...VARIABLE WIND 10 KT. SEAS 2 FT.

$$

PKZ170-230045-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
402 AM AKDT SAT APR 22 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...E WIND 25 KT. SEAS 6 FT.
.TONIGHT...E WIND 15 KT. SEAS 5 FT.
.SUN...SE WIND 15 KT. SEAS 5 FT.
.SUN NIGHT...SE WIND 15 KT. SEAS 5 FT.
.MON THROUGH TUE...SE WIND 15 KT. SEAS 4 FT.
.WED...SW WIND 15 KT. SEAS 3 FT.

$$

PKZ171-230045-
UNALASKA BAY-
402 AM AKDT SAT APR 22 2017

.TODAY...E WIND 15 KT DIMINISHING TO 10 KT IN THE AFTERNOON. GUSTS TO
25 KT IN THE MORNING. SEAS 2 FT.
.TONIGHT...VARIABLE WIND LESS THAN 10 KT BECOMING S 10 KT AFTER
MIDNIGHT. SEAS 2 FT.
.SUN...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.
.SUN NIGHT...SE WIND 10 KT. SEAS 2 FT.
.MON THROUGH TUE...SE WIND 10 KT. SEAS 2 FT.
.WED...SW WIND 10 KT. SEAS 2 FT.

$$

PKZ172-230045-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
402 AM AKDT SAT APR 22 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...E WIND 25 KT. SEAS 10 FT.
.TONIGHT...VARIABLE WIND 10 KT. SEAS 10 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 10 FT.
.SUN NIGHT...SE WIND 15 KT. SEAS 9 FT.
.MON THROUGH WED...SW WIND 15 KT. SEAS 8 FT.

$$

PKZ173-230045-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
402 AM AKDT SAT APR 22 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...E WIND 30 KT. SEAS 12 FT. PATCHY FOG. RAIN.
.TONIGHT...E WIND 20 KT. SEAS 7 FT.
.SUN...SE WIND 20 KT. SEAS 5 FT.
.SUN NIGHT...SE WIND 20 KT. SEAS 6 FT.
.MON...SE WIND 15 KT. SEAS 7 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 4 FT.
.WED...W WIND 15 KT. SEAS 5 FT.

$$

PKZ174-230045-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
402 AM AKDT SAT APR 22 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...SE WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON. SEAS
12 FT. PATCHY FOG.
.TONIGHT...VARIABLE WIND 10 KT. SEAS 11 FT.
.SUN...SE WIND 20 KT. SEAS 11 FT.
.SUN NIGHT...SE WIND 15 KT. SEAS 11 FT.
.MON...S WIND 15 KT. SEAS 10 FT.
.TUE...SW WIND 15 KT. SEAS 7 FT.
.WED...W WIND 20 KT. SEAS 6 FT.

$$

PKZ175-230045-
SEGUAM ISLAND TO ADAK BERING SIDE-
402 AM AKDT SAT APR 22 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SE WIND 25 KT. SEAS 9 FT. PATCHY FOG.
.TONIGHT...E WIND 20 KT. SEAS 8 FT.
.SUN...E WIND 20 KT. SEAS 6 FT.
.SUN NIGHT...E WIND 20 KT. SEAS 7 FT.
.MON THROUGH TUE...N WIND 15 KT. SEAS 6 FT.
.WED...NW WIND 20 KT. SEAS 6 FT.

$$

PKZ176-230045-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
402 AM AKDT SAT APR 22 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...SE WIND 15 KT. SEAS 12 FT. PATCHY FOG.
.TONIGHT...SE WIND 15 KT. SEAS 12 FT.
.SUN...E WIND 20 KT. SEAS 12 FT.
.SUN NIGHT...E WIND 20 KT. SEAS 11 FT.
.MON THROUGH TUE...W WIND 15 KT. SEAS 8 FT.
.WED...NW WIND 20 KT. SEAS 6 FT.

$$

PKZ177-230045-
ADAK TO KISKA-
402 AM AKDT SAT APR 22 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...SE WIND 20 KT. SEAS 11 FT.
.TONIGHT...NE WIND 25 KT. SEAS 11 FT.
.SUN...NE WIND 25 KT. SEAS 10 FT.
.SUN NIGHT...N WIND 20 KT. SEAS 9 FT.
.MON THROUGH WED...NW WIND 20 KT. SEAS 9 FT.

$$

PKZ178-230045-
KISKA TO ATTU-
402 AM AKDT SAT APR 22 2017

...GALE WARNING TODAY...

.TODAY...NE WIND 40 KT. SEAS 17 FT. RAIN AND SNOW.
.TONIGHT...NE WIND 30 KT. SEAS 13 FT.
.SUN...NE WIND 30 KT. SEAS 12 FT.
.SUN NIGHT...N WIND 30 KT. SEAS 14 FT.
.MON...N WIND 30 KT. SEAS 14 FT.
.TUE...N WIND 25 KT. SEAS 10 FT.
.WED...NW WIND 20 KT. SEAS 9 FT.

$$

PKZ179-230045-
PRIBILOF ISLANDS NEAR SHORE WATERS-
402 AM AKDT SAT APR 22 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...E WIND INCREASING TO 25 KT. SEAS BUILDING TO 7 FT. RAIN.
.TONIGHT...NE WIND 30 KT. SEAS 9 FT. RAIN WITH SNOW.
.SUN...E WIND 25 KT DIMINISHING TO 15 KT IN THE AFTERNOON. SEAS
8 FT.
.SUN NIGHT...E WIND 15 KT. SEAS 5 FT.
.MON...E WIND 15 KT. SEAS 5 FT.
.TUE THROUGH WED...VARIABLE WIND 10 KT. SEAS 3 FT.

$$

PKZ180-230045-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
402 AM AKDT SAT APR 22 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...NE WIND INCREASING TO 30 KT. SEAS IN ICE FREE WATERS
BUILDING TO 8 FT.
.TONIGHT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 8 FT. SNOW.
.SUN...E WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.
.SUN NIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.MON...E WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.
.TUE THROUGH WED...SE WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT.

$$

PKZ181-230045-
NORTH AND WEST OF NUNIVAK ISLAND-
402 AM AKDT SAT APR 22 2017

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

.TODAY...E WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT.
.TONIGHT...NE WIND 25 KT. SEAS IN ICE FREE WATERS 4 FT.
.SUN...NE WIND 25 KT. SEAS IN ICE FREE WATERS 4 FT.
.SUN NIGHT...NE WIND 20 KT. SEAS IN ICE FREE WATERS 2 FT.
.MON THROUGH WED...N WIND 15 KT. SEAS IN ICE FREE WATERS 2 FT.

$$

PKZ185-230045-
SAINT MATTHEW ISLAND WATERS-
402 AM AKDT SAT APR 22 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...E WIND 25 KT. SEAS IN ICE FREE WATERS 8 FT.
.TONIGHT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT.
.SUN...NE WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT.
.SUN NIGHT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT.
.MON...NE WIND 30 KT. SEAS IN ICE FREE WATERS 9 FT.
.TUE THROUGH WED...NE WIND 25 KT. SEAS IN ICE FREE WATERS 8 FT.

$$

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

.ANALYSIS AND UPPER LEVELS...

An Arctic high pressure ridge at the surface is keeping its foot
firmly planted over most of the state today. The Alaska Range is
helping to block incoming cold from the Arctic and limit the
strongest winds to the Interior.

For Southwest Alaska, the upper-level trough is more problematic.
This feature, which extends from Northern Canada to the Bering Sea,
is keeping a weak area of surface low pressure anchored between
the Pribilofs and Bristol Bay. The resulting pull of the Bering
Sea's cold, wet air is becoming easier with increasing areas of
open water while sea ice diminishes. The result is a sloshing of
low clouds, rain, and snow into the Alaska Peninsula and Bristol
Bay with occasional gusty winds over the Pribilofs.

No substantial change is expected over the region until late this
week and into the weekend as a low moves north toward land from
the Gulf of Alaska and another low moves toward the Aleutian Chain
from the North Pacific.

&&

.MODEL DISCUSSION...
Models appear to be in good agreement in the short-term,
therefore a blend of the GFS and NAM was used today. In the longer
term, models diverge in the handling of both the approaching low
in the Gulf of Alaska and the low in the North Pacific.

&&

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

&&

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

Quiet weather continues across Southcentral for the next day or so
for everyone in Southcentral as high pressure keeps everything
relatively quiet. The air mass behind last upper level front was
not as cool as once thought in the Copper River Basin. As a
result, while the winds through the Matanuska Valley and Thompson
Pass did kick up as expected, they did not get as high as they
likely would have if the air there were colder and more
susceptible to draining. Thus, with a weaker upper level front
currently stalling across the northern Susitna Valley and Copper
River Basin, winds are unlikely to pick up very much with it.
Afternoon sea breezes remain in the forecast around Kachemak and
Resurrection Bays but both should just amount to afternoon breezes
off the water.

With the snow pack having melted and winds lighter than expected,
afternoon relative humidity levels should temper off about where
they are now for the next few afternoons.

From Thursday night through Friday, a strong northward-moving
front that has shown up very consistently in the models for nearly
a week now will finally make its approach into the Gulf. That
front will spell the end of the dry stretch for coastal
communities as low-elevation rain and mountain snow or rain/snow
mix moves into the usual upslope areas on broad easterly flow.
The forward movement of the front will slow to a drift over the
Gulf on Friday as the parent low begins to wrap up on itself,
prohibiting much moisture, and certainly any precipitation, from
advancing very far inland. Thus, Anchorage and points north will
remain dry, and the northern Susitna Valley and Copper River Basin
may even stay sunny. Besides the precipitation at the coast, the
winds will really kick up along the southern Kenai Peninsula
coast, Kodiak Island, and Shelikof Strait, where gales are
expected by Friday evening.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
The pesky upper level low pressure will still influence the area
even though it has weakened considerably. Westerly flow along the
Bering, running into the Alaska Peninsula will be the focus for
marine layer stratus this evening. With it, the possibility for
fog as well. Stratus should move into the Bristol Bay coast this
evening and linger through the overnight hours before dissipating
Thursday morning. Otherwise, expect clear conditions for most
areas except along the coast where both stratus and the upper low
pressure could linger some clouds. High temperatures will run into
the 40s in most areas, but could peek into the 50s as the pattern
changes and some easterly flow brings some compressionally warmed
air off of the mountains. The next real chance for precipitation
comes on Friday afternoon/evening as a disturbance from the Gulf
moves overhead.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
The lingering upper level low pressure will keep snow showers
going over the central Bering Sea. That system will move into the
northern Bering and out of the area Friday. A separate frontal
boundary will parallel the western/central Aleutians late tonight,
peaking near gale-force. The front will bring snow then rain to
the area, staying mainly in the southern Bering. Another system
from the Gulf moves into the area on Friday.

&&

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

For Day 3...Fri night through Sat a front will swing through the
Gulf and another through the central Aleutians. Both will bring
small craft and gale force winds to the their areas, with rain
limited to coastal locations.

For Day 4 through Day 7... Several low pressure centers and
associated fronts will migrate east along the Aleutian chain,
headed ultimately for the Alaska Peninsula and the north Gulf
coast. These systems will bring rain to the Aleutians, and
abundant rain to the Gulf coast. As the systems consolidate near
the Alaska Peninsula over the weekend and into early next week,
rain over the valleys with some higher elevation snow will become
more common over mountain ranges of Southcentral south of the
Alaska range.

The forecast relies on a conglomeration of operational and
ensemble forecasts in an attempt to depict movement and placement
of lows along the chain. This lowers forecast confidence since
the models themselves currently have divergent solutions.

&&

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

&&

SYNOPSIS AND MODEL DISCUSSION...DS
SOUTHCENTRAL ALASKA...JW
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...ML
LONG TERM...DS