Gale Warning 242, NWS Anchorage, AK

356 
FZAK51 PAFC 291136
CWFAER

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
336 AM AKDT WED MAR 29 2017

COASTAL WATERS FORECAST FOR THE NORTHERN GULF OF ALASKA COAST
UP TO 100 NM OUT INCLUDING KODIAK ISLAND AND COOK INLET.

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.

PKZ197-300045-
336 AM AKDT WED MAR 29 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A 997 MB LOW 25 NM SOUTH OF WHITTIER MOVES INLAND WED AFTERNOON. 
A TROUGH EXTENDS OVER THE NORTH GULF COAST AND WESTERN GULF OF 
ALASKA THROUGH THU MORNING. HIGH PRESSURE BUILDS OVER SOUTHEASTERN
ALASKA THROUGH THU AFTERNOON. A FRONT ENTERS THE WESTERN GULF 
MIDDAY THU AND MOVES TO THE NORTH GULF COAST BY FRI MORNING.

$$

PKZ119-300045-
CAPE SUCKLING TO CAPE CLEARE-
336 AM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TODAY...SW WIND 20 KT. N OF MIDDLETON ISLAND...SE WIND 25 KT
BECOMING SW 15 KT IN THE AFTERNOON. SEAS 8 FT.
.TONIGHT...SW WIND 20 KT. SEAS 8 FT.
.THU...SE WIND 25 KT BECOMING E 40 KT IN THE AFTERNOON. SEAS 7 FT
BUILDING TO 12 FT IN THE AFTERNOON. RAIN.
.THU NIGHT...SE WIND 50 KT. SEAS 18 FT.
.FRI...SE WIND 30 KT. SEAS 15 FT.
.SAT...SE WIND 20 KT. SEAS 15 FT.
.SUN...SE WIND 25 KT. SEAS 14 FT.

$$

PKZ120-300045-
CAPE CLEARE TO GORE POINT-
336 AM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TODAY...W WIND INCREASING TO 25 KT. SEAS 5 FT BUILDING TO 8 FT IN
THE AFTERNOON.
.TONIGHT...SW WIND 20 KT. SEAS 7 FT.
.THU...E WIND 30 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS 7
FT BUILDING TO 14 FT IN THE AFTERNOON. RAIN AND SNOW.
.THU NIGHT...E WIND 45 KT. SEAS 17 FT.
.FRI...SE WIND 25 KT. SEAS 14 FT.
.SAT...S WIND 20 KT. SEAS 14 FT.
.SUN...SE WIND 25 KT. SEAS 11 FT.

$$

PKZ121-300045-
RESURRECTION BAY-
336 AM AKDT WED MAR 29 2017

.TODAY...N WIND 15 KT IN THE MORNING BECOMING VARIABLE LESS THAN 10 
KT. GUSTS TO 25 KT IN THE MORNING. SEAS 3 FT. SNOW.
.TONIGHT...VARIABLE WIND LESS THAN 10 KT BECOMING S 10 KT AFTER
MIDNIGHT. SEAS 2 FT.
.THU...S WIND 10 KT BECOMING N IN THE AFTERNOON. SEAS 2 FT. HIGHER 
WINDS AND SEAS S OF CAINES HEAD. SNOW.
.THU NIGHT THROUGH FRI...N WIND 15 KT. SEAS 3 FT.
.SAT...S WIND 15 KT. SEAS 3 FT.
.SUN...S WIND 30 KT. SEAS 5 FT.

$$

PKZ125-300045-
PRINCE WILLIAM SOUND-
336 AM AKDT WED MAR 29 2017

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...SE WIND 20 KT DIMINISHING TO 10 KT IN THE AFTERNOON. SEAS 4
FT SUBSIDING TO 2 FT IN THE AFTERNOON. RAIN WITH SNOW.
.TONIGHT...S WIND 15 KT. SEAS 3 FT.
.THU...E WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. SEAS 4
FT BUILDING TO 7 FT IN THE AFTERNOON. SNOW.
.THU NIGHT...E WIND 35 KT. SEAS 9 FT.
.FRI...E WIND 30 KT. SEAS 7 FT.
.SAT THROUGH SUN...SE WIND 15 KT. SEAS 3 FT.

$$

PKZ126-300045-
PORT VALDEZ-
336 AM AKDT WED MAR 29 2017

.TODAY...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT. SNOW AND RAIN.
.TONIGHT...VARIABLE WIND LESS THAN 10 KT BECOMING E 10 KT AFTER
MIDNIGHT. SEAS 2 FT.
.THU...E WIND 10 KT IN THE MORNING BECOMING VARIABLE LESS THAN
10 KT. SEAS 2 FT. SNOW.
.THU NIGHT THROUGH FRI...E WIND 15 KT. SEAS 3 FT.
.SAT THROUGH SUN...E WIND 10 KT. SEAS 2 FT.

$$

PKZ127-300045-
VALDEZ NARROWS-
336 AM AKDT WED MAR 29 2017

.TODAY...NE WIND 15 KT DIMINISHING TO 10 KT IN THE AFTERNOON. SEAS
3 FT. SNOW AND RAIN.
.TONIGHT...NE WIND 10 KT INCREASING TO 15 KT AFTER MIDNIGHT. SEAS
3 FT. SNOW.
.THU...NE WIND 20 KT. SEAS 3 FT. SNOW.
.THU NIGHT THROUGH FRI...NE WIND 25 KT. SEAS 3 FT.
.SAT...NE WIND 15 KT. SEAS 3 FT.
.SUN...N WIND 10 KT. SEAS 2 FT.

$$

PKZ128-300045-
VALDEZ ARM-
336 AM AKDT WED MAR 29 2017

.TODAY...NE WIND 15 KT BECOMING VARIABLE 10 KT IN THE AFTERNOON. 
SEAS 3 FT. RAIN AND SNOW.
.TONIGHT...NE WIND 10 KT. SEAS 2 FT. SNOW.
.THU...NE WIND 20 KT. SEAS 3 FT. SNOW.
.THU NIGHT...NE WIND 25 KT. SEAS 4 FT.
.FRI...NE WIND 20 KT. SEAS 4 FT.
.SAT THROUGH SUN...NE WIND 15 KT. SEAS 3 FT.

$$

PKZ129-300045-
PASSAGE CANAL-
336 AM AKDT WED MAR 29 2017

.TODAY...E WIND 10 KT IN THE MORNING BECOMING VARIABLE LESS THAN
10 KT. SEAS 2 FT. SNOW.
.TONIGHT...E WIND 10 KT INCREASING TO 15 KT AFTER MIDNIGHT. SEAS
2 FT. SNOW.
.THU...E WIND 20 KT. SEAS 3 FT. SNOW AND RAIN.
.THU NIGHT...E WIND 20 KT. SEAS 3 FT.
.FRI...E WIND 20 KT. SEAS 3 FT.
.SAT...E WIND 15 KT. SEAS 2 FT.
.SUN...E WIND 20 KT. SEAS 2 FT.

$$

PKZ130-300045-
WEST OF BARREN ISLANDS INCLUDING KAMISHAK BAY-
336 AM AKDT WED MAR 29 2017

...GALE WARNING TODAY AND THURSDAY...

.TODAY...W WIND 35 KT DIMINISHING TO 25 KT IN THE AFTERNOON. SEAS 10
FT. FREEZING SPRAY.
.TONIGHT...W WIND 20 KT BECOMING E 15 KT AFTER MIDNIGHT. SEAS 6 FT.
.THU...E WIND 30 KT BECOMING NE 45 KT IN THE AFTERNOON. SEAS 13
FT. SNOW AND RAIN.
.THU NIGHT...NE WIND 50 KT. SEAS 15 FT.
.FRI...E WIND 35 KT. SEAS 11 FT.
.SAT...S WIND 20 KT. SEAS 5 FT.
.SUN...SE WIND 25 KT. SEAS 6 FT.

$$

PKZ131-300045-
BARREN ISLANDS EAST-
336 AM AKDT WED MAR 29 2017

...STORM WARNING THURSDAY...

.TODAY...W WIND 30 KT. SEAS 10 FT.
.TONIGHT...SE WIND 20 KT. SEAS 7 FT.
.THU...E WIND 35 KT INCREASING TO 50 KT IN THE AFTERNOON. SEAS 9
FT BUILDING TO 17 FT IN THE AFTERNOON. RAIN.
.THU NIGHT...SE WIND 45 KT. SEAS 16 FT.
.FRI...SE WIND 25 KT. SEAS 14 FT.
.SAT...S WIND 20 KT. SEAS 13 FT.
.SUN...SE WIND 25 KT. SEAS 11 FT.

$$

PKZ132-300045-
MARMOT ISLAND TO SITKINAK-
336 AM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TODAY...NW WIND 25 KT. SEAS 9 FT.
.TONIGHT...SW WIND 15 KT BECOMING SE 30 KT AFTER MIDNIGHT. SEAS
7 FT. SNOW.
.THU...E WIND 45 KT. SEAS 16 FT. RAIN WITH SNOW.
.THU NIGHT...SE WIND 25 KT. SEAS 15 FT.
.FRI...S WIND 25 KT. SEAS 18 FT.
.SAT...SW WIND 25 KT. SEAS 16 FT.
.SUN...S WIND 20 KT. SEAS 14 FT.

$$

PKZ136-300045-
CHINIAK BAY-
336 AM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TODAY...NW WIND 10 KT IN THE MORNING BECOMING VARIABLE LESS THAN
10 KT. SEAS 1 FT.
.TONIGHT...VARIABLE WIND LESS THAN 10 KT BECOMING SE 15 KT AFTER
MIDNIGHT. SEAS BUILDING TO 4 FT. SNOW.
.THU...E WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS
7 FT BUILDING TO 14 FT IN THE AFTERNOON. RAIN AND SNOW.
.THU NIGHT...SE WIND 15 KT. SEAS 4 FT.
.FRI...SE WIND 20 KT. SEAS 7 FT.
.SAT...SW WIND 10 KT. SEAS 3 FT.
.SUN...S WIND 15 KT. SEAS 4 FT.

$$

PKZ137-300045-
MARMOT BAY-
336 AM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TODAY...W WIND 10 KT. SEAS 2 FT.
.TONIGHT...VARIABLE WIND LESS THAN 10 KT BECOMING SE 15 KT AFTER
MIDNIGHT. SEAS BUILDING TO 4 FT.
.THU...E WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS
12 FT BUILDING TO 16 FT IN THE AFTERNOON. RAIN AND SNOW.
.THU NIGHT...E WIND 25 KT. SEAS 7 FT.
.FRI...SE WIND 20 KT. SEAS 7 FT.
.SAT...SW WIND 10 KT. SEAS 3 FT.
.SUN...SE WIND 15 KT. SEAS 4 FT.

$$

PKZ138-300045-
SHELIKOF STRAIT-
336 AM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TODAY...W WIND 15 KT. SEAS 4 FT.
.TONIGHT...VARIABLE WIND 10 KT BECOMING NE 20 KT AFTER MIDNIGHT.
SEAS 2 FT BUILDING TO 5 FT AFTER MIDNIGHT.
.THU...NE WIND 45 KT. SEAS 15 FT. RAIN AND SNOW.
.THU NIGHT...NE WIND 40 KT. SEAS 13 FT.
.FRI...E WIND 20 KT. SEAS 5 FT.
.SAT...SW WIND 20 KT. SEAS 6 FT.
.SUN...SE WIND 20 KT. SEAS 5 FT.

$$

PKZ139-300045-
COOK INLET KALGIN ISLAND TO POINT BEDE-
336 AM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TODAY...W WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.TONIGHT...SW WIND 15 KT BECOMING SE 10 KT AFTER MIDNIGHT. SEAS IN
ICE FREE WATERS 3 FT.
.THU...NE WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. SEAS IN
ICE FREE WATERS 6 FT BUILDING TO 10 FT IN THE AFTERNOON. SNOW.
.THU NIGHT...NE WIND 45 KT. SEAS IN ICE FREE WATERS 12 FT.
.FRI...NE WIND 35 KT. SEAS IN ICE FREE WATERS 8 FT.
.SAT...E WIND 10 KT. SEAS IN ICE FREE WATERS 3 FT.
.SUN...E WIND 15 KT. SEAS IN ICE FREE WATERS 4 FT.

$$

PKZ140-300045-
COOK INLET NORTH OF KALGIN ISLAND-
336 AM AKDT WED MAR 29 2017

...BRISK WIND ADVISORY THURSDAY...

.TODAY...SW WIND 10 KT INCREASING TO 15 KT IN THE AFTERNOON.
.TONIGHT...S WIND 15 KT BECOMING SE 10 KT AFTER MIDNIGHT.
.THU...NE WIND 15 KT INCREASING TO 25 KT IN THE AFTERNOON.
.THU NIGHT...N WIND 35 KT.
.FRI...NE WIND 25 KT.
.SAT THROUGH SUN...E WIND 10 KT.

$$

PKZ141-300045-
KACHEMAK BAY-
336 AM AKDT WED MAR 29 2017

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...SW WIND 10 KT INCREASING TO 15 KT IN THE AFTERNOON.
SEAS 3 FT.
.TONIGHT...SW WIND 10 KT. SEAS 2 FT.
.THU...E WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON.
SEAS 3 FT BUILDING TO 5 FT IN THE AFTERNOON. SNOW.
.THU NIGHT...NE WIND 30 KT. SEAS 6 FT.
.FRI...E WIND 20 KT. SEAS 3 FT.
.SAT...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.
.SUN...SE WIND 15 KT. SEAS 3 FT.

$$

492 
FZAK51 PAFC 291609 AAA
CWFAER

COASTAL WATERS FORECAST...UPDATED
NATIONAL WEATHER SERVICE ANCHORAGE AK
809 AM AKDT WED MAR 29 2017

COASTAL WATERS FORECAST FOR THE NORTHERN GULF OF ALASKA COAST
UP TO 100 NM OUT INCLUDING KODIAK ISLAND AND COOK INLET.

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.

PKZ197-300315-
809 AM AKDT WED MAR 29 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A 997 MB LOW 25 NM SOUTH OF WHITTIER MOVES INLAND WED AFTERNOON. 
A TROUGH EXTENDS OVER THE NORTH GULF COAST AND WESTERN GULF OF 
ALASKA THROUGH THU MORNING. HIGH PRESSURE BUILDS OVER SOUTHEASTERN
ALASKA THROUGH THU AFTERNOON. A FRONT ENTERS THE WESTERN GULF 
MIDDAY THU AND MOVES TO THE NORTH GULF COAST BY FRI MORNING.

$$

PKZ119-300315-
CAPE SUCKLING TO CAPE CLEARE-
809 AM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TODAY...SW WIND 20 KT. N OF MIDDLETON ISLAND...SE WIND 25 KT
BECOMING SW 15 KT IN THE AFTERNOON. SEAS 8 FT. 
.TONIGHT...SW WIND 20 KT. SEAS 8 FT. 
.THU...SE WIND 25 KT BECOMING E 40 KT IN THE AFTERNOON. SEAS 7 FT
BUILDING TO 12 FT IN THE AFTERNOON. RAIN. 
.THU NIGHT...SE WIND 50 KT. SEAS 18 FT. 
.FRI...SE WIND 30 KT. SEAS 15 FT. 
.SAT...SE WIND 20 KT. SEAS 15 FT. 
.SUN...SE WIND 25 KT. SEAS 14 FT.

$$

PKZ120-300315-
CAPE CLEARE TO GORE POINT-
809 AM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TODAY...W WIND INCREASING TO 25 KT. SEAS 5 FT BUILDING TO 8 FT
IN THE AFTERNOON. 
.TONIGHT...SW WIND 20 KT. SEAS 7 FT. 
.THU...E WIND 30 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS
7 FT BUILDING TO 14 FT IN THE AFTERNOON. RAIN AND SNOW. 
.THU NIGHT...E WIND 45 KT. SEAS 17 FT. 
.FRI...SE WIND 25 KT. SEAS 14 FT. 
.SAT...S WIND 20 KT. SEAS 14 FT. 
.SUN...SE WIND 25 KT. SEAS 11 FT.

$$

PKZ121-300315-
RESURRECTION BAY-
809 AM AKDT WED MAR 29 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N WIND 25 KT DIMINISHING TO 10 KT IN THE AFTERNOON. 
SEAS 4 FT SUBSIDING TO 2 FT IN THE AFTERNOON. SNOW. 
.TONIGHT...VARIABLE WIND LESS THAN 10 KT BECOMING S 10 KT 
AFTER MIDNIGHT. SEAS 2 FT. 
.THU...S WIND 10 KT BECOMING N IN THE AFTERNOON. SEAS 2 FT.
HIGHER  WINDS AND SEAS S OF CAINES HEAD. SNOW. 
.THU NIGHT THROUGH FRI...N WIND 15 KT. SEAS 3 FT. 
.SAT...S WIND 15 KT. SEAS 3 FT. 
.SUN...S WIND 30 KT. SEAS 5 FT.

$$

PKZ125-300315-
PRINCE WILLIAM SOUND-
809 AM AKDT WED MAR 29 2017

...SMALL CRAFT ADVISORY TODAY AND THURSDAY...

.TODAY...SE WIND 25 KT DIMINISHING TO 10 KT IN THE AFTERNOON. 
SEAS 5 FT SUBSIDING TO 2 FT IN THE AFTERNOON. RAIN AND SNOW. 
.TONIGHT...S WIND 15 KT. SEAS 3 FT. 
.THU...E WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. SEAS
4 FT BUILDING TO 7 FT IN THE AFTERNOON. SNOW. 
.THU NIGHT...E WIND 35 KT. SEAS 9 FT. 
.FRI...E WIND 30 KT. SEAS 7 FT. 
.SAT THROUGH SUN...SE WIND 15 KT. SEAS 3 FT.

$$

PKZ126-300315-
PORT VALDEZ-
809 AM AKDT WED MAR 29 2017

.TODAY...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT. SNOW AND RAIN.
.TONIGHT...VARIABLE WIND LESS THAN 10 KT BECOMING E 10 KT AFTER
MIDNIGHT. SEAS 2 FT. 
.THU...E WIND 10 KT IN THE MORNING BECOMING VARIABLE LESS THAN
10 KT. SEAS 2 FT. SNOW. 
.THU NIGHT THROUGH FRI...E WIND 15 KT. SEAS 3 FT. 
.SAT THROUGH SUN...E WIND 10 KT. SEAS 2 FT.

$$

PKZ127-300315-
VALDEZ NARROWS-
809 AM AKDT WED MAR 29 2017

.TODAY...NE WIND 15 KT DIMINISHING TO 10 KT IN THE AFTERNOON.
SEAS 3 FT. SNOW AND RAIN. 
.TONIGHT...NE WIND 10 KT INCREASING TO 15 KT AFTER MIDNIGHT. SEAS
3 FT. SNOW. 
.THU...NE WIND 20 KT. SEAS 3 FT. SNOW. 
.THU NIGHT THROUGH FRI...NE WIND 25 KT. SEAS 3 FT. 
.SAT...NE WIND 15 KT. SEAS 3 FT. 
.SUN...N WIND 10 KT. SEAS 2 FT.

$$

PKZ128-300315-
VALDEZ ARM-
809 AM AKDT WED MAR 29 2017

.TODAY...NE WIND 15 KT BECOMING VARIABLE 10 KT IN THE AFTERNOON. 
SEAS 3 FT. RAIN AND SNOW. 
.TONIGHT...NE WIND 10 KT. SEAS 2 FT. SNOW. 
.THU...NE WIND 20 KT. SEAS 3 FT. SNOW. 
.THU NIGHT...NE WIND 25 KT. SEAS 4 FT. 
.FRI...NE WIND 20 KT. SEAS 4 FT. 
.SAT THROUGH SUN...NE WIND 15 KT. SEAS 3 FT.

$$

PKZ129-300315-
PASSAGE CANAL-
809 AM AKDT WED MAR 29 2017

.TODAY...E WIND 10 KT IN THE MORNING BECOMING VARIABLE LESS THAN
10 KT. SEAS 2 FT. SNOW. 
.TONIGHT...E WIND 10 KT INCREASING TO 15 KT AFTER MIDNIGHT. SEAS
2 FT. SNOW. 
.THU...E WIND 20 KT. SEAS 3 FT. SNOW AND RAIN. 
.THU NIGHT...E WIND 20 KT. SEAS 3 FT. 
.FRI...E WIND 20 KT. SEAS 3 FT. 
.SAT...E WIND 15 KT. SEAS 2 FT. 
.SUN...E WIND 20 KT. SEAS 2 FT.

$$

PKZ130-300315-
WEST OF BARREN ISLANDS INCLUDING KAMISHAK BAY-
809 AM AKDT WED MAR 29 2017

...GALE WARNING TODAY AND THURSDAY...

.TODAY...W WIND 35 KT DIMINISHING TO 25 KT IN THE AFTERNOON. SEAS
10 FT. FREEZING SPRAY. 
.TONIGHT...W WIND 20 KT BECOMING E 15 KT AFTER MIDNIGHT. SEAS
6 FT. 
.THU...E WIND 30 KT BECOMING NE 45 KT IN THE AFTERNOON. SEAS
13 FT. SNOW AND RAIN. 
.THU NIGHT...NE WIND 50 KT. SEAS 15 FT. 
.FRI...E WIND 35 KT. SEAS 11 FT. 
.SAT...S WIND 20 KT. SEAS 5 FT. 
.SUN...SE WIND 25 KT. SEAS 6 FT.

$$

PKZ131-300315-
BARREN ISLANDS EAST-
809 AM AKDT WED MAR 29 2017

...STORM WARNING THURSDAY...

.TODAY...W WIND 30 KT. SEAS 10 FT. 
.TONIGHT...SE WIND 20 KT. SEAS 7 FT. 
.THU...E WIND 35 KT INCREASING TO 50 KT IN THE AFTERNOON. SEAS
9 FT BUILDING TO 17 FT IN THE AFTERNOON. RAIN. 
.THU NIGHT...SE WIND 45 KT. SEAS 16 FT. 
.FRI...SE WIND 25 KT. SEAS 14 FT. 
.SAT...S WIND 20 KT. SEAS 13 FT. 
.SUN...SE WIND 25 KT. SEAS 11 FT.

$$

PKZ132-300315-
MARMOT ISLAND TO SITKINAK-
809 AM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TODAY...NW WIND 25 KT. SEAS 9 FT. 
.TONIGHT...SW WIND 15 KT BECOMING SE 30 KT AFTER MIDNIGHT. SEAS
7 FT. SNOW. 
.THU...E WIND 45 KT. SEAS 16 FT. RAIN WITH SNOW. 
.THU NIGHT...SE WIND 25 KT. SEAS 15 FT. 
.FRI...S WIND 25 KT. SEAS 18 FT. 
.SAT...SW WIND 25 KT. SEAS 16 FT. 
.SUN...S WIND 20 KT. SEAS 14 FT.

$$

PKZ136-300315-
CHINIAK BAY-
809 AM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TODAY...NW WIND 10 KT IN THE MORNING BECOMING VARIABLE LESS THAN
10 KT. SEAS 1 FT. 
.TONIGHT...VARIABLE WIND LESS THAN 10 KT BECOMING SE 15 KT AFTER
MIDNIGHT. SEAS BUILDING TO 4 FT. SNOW. 
.THU...E WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS
7 FT BUILDING TO 14 FT IN THE AFTERNOON. RAIN AND SNOW. 
.THU NIGHT...SE WIND 15 KT. SEAS 4 FT. 
.FRI...SE WIND 20 KT. SEAS 7 FT. 
.SAT...SW WIND 10 KT. SEAS 3 FT. 
.SUN...S WIND 15 KT. SEAS 4 FT.

$$

PKZ137-300315-
MARMOT BAY-
809 AM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TODAY...W WIND 10 KT. SEAS 2 FT. 
.TONIGHT...VARIABLE WIND LESS THAN 10 KT BECOMING SE 15 KT AFTER
MIDNIGHT. SEAS BUILDING TO 4 FT. 
.THU...E WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS
12 FT BUILDING TO 16 FT IN THE AFTERNOON. RAIN AND SNOW. 
.THU NIGHT...E WIND 25 KT. SEAS 7 FT. 
.FRI...SE WIND 20 KT. SEAS 7 FT. 
.SAT...SW WIND 10 KT. SEAS 3 FT. 
.SUN...SE WIND 15 KT. SEAS 4 FT.

$$

PKZ138-300315-
SHELIKOF STRAIT-
809 AM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TODAY...W WIND 15 KT. SEAS 4 FT. 
.TONIGHT...VARIABLE WIND 10 KT BECOMING NE 20 KT AFTER MIDNIGHT.
SEAS 2 FT BUILDING TO 5 FT AFTER MIDNIGHT. 
.THU...NE WIND 45 KT. SEAS 15 FT. RAIN AND SNOW. 
.THU NIGHT...NE WIND 40 KT. SEAS 13 FT. 
.FRI...E WIND 20 KT. SEAS 5 FT. 
.SAT...SW WIND 20 KT. SEAS 6 FT. 
.SUN...SE WIND 20 KT. SEAS 5 FT.

$$

PKZ139-300315-
COOK INLET KALGIN ISLAND TO POINT BEDE-
809 AM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TODAY...W WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT. 
.TONIGHT...SW WIND 15 KT BECOMING SE 10 KT AFTER MIDNIGHT. SEAS
IN ICE FREE WATERS 3 FT. 
.THU...NE WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. SEAS
IN ICE FREE WATERS 6 FT BUILDING TO 10 FT IN THE AFTERNOON. SNOW.
.THU NIGHT...NE WIND 45 KT. SEAS IN ICE FREE WATERS 12 FT. 
.FRI...NE WIND 35 KT. SEAS IN ICE FREE WATERS 8 FT. 
.SAT...E WIND 10 KT. SEAS IN ICE FREE WATERS 3 FT. 
.SUN...E WIND 15 KT. SEAS IN ICE FREE WATERS 4 FT.

$$

PKZ140-300315-
COOK INLET NORTH OF KALGIN ISLAND-
809 AM AKDT WED MAR 29 2017

...BRISK WIND ADVISORY THURSDAY...

.TODAY...SW WIND 10 KT INCREASING TO 15 KT IN THE AFTERNOON. 
.TONIGHT...S WIND 15 KT BECOMING SE 10 KT AFTER MIDNIGHT. 
.THU...NE WIND 15 KT INCREASING TO 25 KT IN THE AFTERNOON. 
.THU NIGHT...N WIND 35 KT. 
.FRI...NE WIND 25 KT. 
.SAT THROUGH SUN...E WIND 10 KT.

$$

PKZ141-300315-
KACHEMAK BAY-
809 AM AKDT WED MAR 29 2017

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...SW WIND 10 KT INCREASING TO 15 KT IN THE AFTERNOON. SEAS
3 FT. 
.TONIGHT...SW WIND 10 KT. SEAS 2 FT. 
.THU...E WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. SEAS
3 FT BUILDING TO 5 FT IN THE AFTERNOON. SNOW. 
.THU NIGHT...NE WIND 30 KT. SEAS 6 FT. 
.FRI...E WIND 20 KT. SEAS 3 FT. 
.SAT...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT. 
.SUN...SE WIND 15 KT. SEAS 3 FT.

$$

256 
FZAK51 PAFC 292350
CWFAER

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
350 PM AKDT WED MAR 29 2017

COASTAL WATERS FORECAST FOR THE NORTHERN GULF OF ALASKA COAST
UP TO 100 NM OUT INCLUDING KODIAK ISLAND AND COOK INLET.

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.

PKZ197-301300-
350 PM AKDT WED MAR 29 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A TROUGH OF LOW PRESSURE ALONG THE NORTH GULF COAST WILL 
DISSIPATE TONIGHT. A FRONT ENTERS THE SOUTHWESTERN GULF OF ALASKA THU
MORNING AND MOVES TO THE NORTH GULF COAST BY THU EVENING. THE FRONT 
WILL THEN DISSIPATE ALONG THE NORTH GULF COAST THU NIGHT.

$$

PKZ119-301300-
CAPE SUCKLING TO CAPE CLEARE-
350 PM AKDT WED MAR 29 2017

...STORM WARNING THURSDAY NIGHT...

.TONIGHT...SW WIND 20 KT BECOMING SE TOWARDS MORNING. SEAS 7 FT.
.THU...SE WIND 25 KT BECOMING E 45 KT IN THE AFTERNOON. SEAS 7 FT
BUILDING TO 12 FT. RAIN.
.THU NIGHT...E WIND 50 KT BECOMING SE 35 KT AFTER MIDNIGHT. SEAS 18 
FT. RAIN.
.FRI...SE WIND 30 KT. SEAS 14 FT.
.FRI NIGHT...SE WIND 25 KT. SEAS 15 FT.
.SAT THROUGH SUN...SE WIND 25 KT. SEAS 14 FT.
.MON...E WIND 25 KT. SEAS 11 FT.

$$

PKZ120-301300-
CAPE CLEARE TO GORE POINT-
350 PM AKDT WED MAR 29 2017

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

.TONIGHT...SW WIND 20 KT BECOMING SE TOWARDS MORNING. SEAS 7 FT.
.THU...E WIND 30 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS 7
FT BUILDING TO 14 FT. RAIN AND SNOW.
.THU NIGHT...E WIND 45 KT BECOMING SE 20 KT AFTER MIDNIGHT. SEAS
17 FT. RAIN AND SNOW.
.FRI AND FRI NIGHT...E WIND 25 KT. SEAS 14 FT.
.SAT...SE WIND 20 KT. SEAS 13 FT.
.SUN...SE WIND 25 KT. SEAS 11 FT.
.MON...E WIND 25 KT. SEAS 12 FT.

$$

PKZ121-301300-
RESURRECTION BAY-
350 PM AKDT WED MAR 29 2017

.TONIGHT...N WIND 10 KT IN THE EVENING BECOMING VARIABLE LESS THAN 
10 KT. SEAS 2 FT.
.THU...N WIND 10 KT. SEAS 2 FT. HIGHER WINDS AND SEAS S OF CAINES
HEAD. SNOW.
.THU NIGHT...N WIND 15 KT DIMINISHING TO 10 KT AFTER MIDNIGHT.
SEAS 3 FT. HIGHER WINDS AND SEAS S OF CAINES HEAD. SNOW AND RAIN.
.FRI AND FRI NIGHT...N WIND 10 KT. SEAS 2 FT.
.SAT...S WIND 15 KT. SEAS 3 FT.
.SUN...S WIND 30 KT. SEAS 5 FT.
.MON...N WIND 30 KT. SEAS 5 FT.

$$

PKZ125-301300-
PRINCE WILLIAM SOUND-
350 PM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...SE WIND 15 KT. SEAS 2 FT. SNOW.
.THU...E WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. SEAS 4
FT BUILDING TO 7 FT. SNOW AND RAIN.
.THU NIGHT...E WIND 35 KT. SEAS 9 FT. SNOW AND RAIN.
.FRI...E WIND 30 KT. SEAS 6 FT.
.FRI NIGHT...E WIND 20 KT. SEAS 4 FT.
.SAT...E WIND 20 KT. SEAS 4 FT.
.SUN THROUGH MON...E WIND 15 KT. SEAS 3 FT.

$$

PKZ126-301300-
PORT VALDEZ-
350 PM AKDT WED MAR 29 2017

.TONIGHT...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT. SNOW.
.THU...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT. SNOW.
.THU NIGHT...E WIND 10 KT. SEAS 2 FT. SNOW.
.FRI AND FRI NIGHT...E WIND 10 KT. SEAS 2 FT.
.SAT THROUGH MON...E WIND 10 KT. SEAS 2 FT.

$$

PKZ127-301300-
VALDEZ NARROWS-
350 PM AKDT WED MAR 29 2017

...SMALL CRAFT ADVISORY THURSDAY NIGHT...

.TONIGHT...NE WIND 10 KT. SEAS 2 FT. SNOW AND RAIN.
.THU...NE WIND 15 KT. SEAS 3 FT. SNOW.
.THU NIGHT...NE WIND 25 KT. SEAS 3 FT. SNOW AND RAIN.
.FRI...NE WIND 25 KT. SEAS 3 FT.
.FRI NIGHT...NE WIND 20 KT. SEAS 3 FT.
.SAT...NE WIND 20 KT. SEAS 3 FT.
.SUN...N WIND 10 KT. SEAS 2 FT.
.MON...NE WIND 10 KT. SEAS 2 FT.

$$

PKZ128-301300-
VALDEZ ARM-
350 PM AKDT WED MAR 29 2017

.TONIGHT...SE WIND 10 KT. SEAS 2 FT. SNOW AND RAIN.
.THU...NE WIND 15 KT. SEAS 3 FT. SNOW AND RAIN.
.THU NIGHT...NE WIND 20 KT. SEAS 4 FT. SNOW AND RAIN.
.FRI...NE WIND 20 KT. SEAS 4 FT.
.FRI NIGHT...NE WIND 15 KT. SEAS 3 FT.
.SAT THROUGH MON...NE WIND 15 KT. SEAS 3 FT.

$$

PKZ129-301300-
PASSAGE CANAL-
350 PM AKDT WED MAR 29 2017

...SMALL CRAFT ADVISORY THURSDAY NIGHT...

.TONIGHT...W WIND 10 KT IN THE EVENING BECOMING VARIABLE LESS THAN 
10 KT...THEN BECOMING E 10 KT TOWARDS MORNING. SEAS 2 FT. SNOW.
.THU...E WIND 20 KT. SEAS 3 FT. SNOW.
.THU NIGHT...E WIND 25 KT. SEAS 4 FT. SNOW.
.FRI...E WIND 20 KT. SEAS 3 FT.
.FRI NIGHT...E WIND 15 KT. SEAS 2 FT.
.SAT...E WIND 15 KT. SEAS 2 FT.
.SUN THROUGH MON...E WIND 20 KT. SEAS 2 FT.

$$

PKZ130-301300-
WEST OF BARREN ISLANDS INCLUDING KAMISHAK BAY-
350 PM AKDT WED MAR 29 2017

...STORM WARNING THURSDAY NIGHT...

.TONIGHT...W WIND 20 KT BECOMING E 15 KT TOWARDS MORNING. SEAS 4 FT.
.THU...E WIND 35 KT BECOMING NE 45 KT IN THE AFTERNOON. SEAS 13
FT. SNOW AND RAIN.
.THU NIGHT...NE WIND 50 KT. SEAS 14 FT. SNOW AND RAIN.
.FRI...NE WIND 40 KT. SEAS 10 FT.
.FRI NIGHT...NE WIND 30 KT. SEAS 6 FT.
.SAT...SE WIND 20 KT. SEAS 5 FT.
.SUN...SE WIND 25 KT. SEAS 6 FT.
.MON...E WIND 25 KT. SEAS 6 FT.

$$

PKZ131-301300-
BARREN ISLANDS EAST-
350 PM AKDT WED MAR 29 2017

...STORM WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...W WIND 20 KT BECOMING SE 15 KT TOWARDS MORNING. SEAS 6 
FT.
.THU...E WIND 35 KT INCREASING TO 50 KT IN THE AFTERNOON. SEAS 9
FT BUILDING TO 16 FT. RAIN.
.THU NIGHT...E WIND 50 KT BECOMING SE 25 KT AFTER MIDNIGHT. SEAS
16 FT. RAIN.
.FRI AND FRI NIGHT...SE WIND 25 KT. SEAS 14 FT.
.SAT...S WIND 20 KT. SEAS 13 FT.
.SUN...SE WIND 25 KT. SEAS 10 FT.
.MON...E WIND 25 KT. SEAS 14 FT.

$$

PKZ132-301300-
MARMOT ISLAND TO SITKINAK-
350 PM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TONIGHT...SW WIND 15 KT BECOMING SE 30 KT AFTER MIDNIGHT. SEAS
7 FT. SNOW.
.THU...E WIND 45 KT. SEAS 16 FT. RAIN AND SNOW.
.THU NIGHT...SE WIND 25 KT. SEAS 15 FT. RAIN.
.FRI...SE WIND 25 KT. SEAS 16 FT.
.FRI NIGHT...SE WIND 20 KT. SEAS 17 FT.
.SAT...SW WIND 30 KT. SEAS 16 FT.
.SUN...S WIND 20 KT. SEAS 14 FT.
.MON...E WIND 20 KT. SEAS 15 FT.

$$

PKZ136-301300-
CHINIAK BAY-
350 PM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TONIGHT...VARIABLE WIND LESS THAN 10 KT BECOMING SE 15 KT AFTER
MIDNIGHT. SEAS 3 FT.
.THU...E WIND 25 KT IN THE MORNING INCREASING TO 40 KT. SEAS 7 FT
BUILDING TO 15 FT IN THE AFTERNOON. RAIN AND SNOW.
.THU NIGHT...SE WIND 15 KT. SEAS 8 FT SUBSIDING TO 4 FT AFTER
MIDNIGHT. RAIN.
.FRI AND FRI NIGHT...SE WIND 15 KT. SEAS 4 FT.
.SAT...SW WIND 10 KT. SEAS 3 FT.
.SUN...S WIND 15 KT. SEAS 4 FT.
.MON...E WIND 15 KT. SEAS 4 FT.

$$

PKZ137-301300-
MARMOT BAY-
350 PM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY...

.TONIGHT...VARIABLE WIND LESS THAN 10 KT BECOMING SE 15 KT AFTER
MIDNIGHT. SEAS 3 FT.
.THU...E WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS 12
FT BUILDING TO 17 FT IN THE AFTERNOON. RAIN WITH SNOW.
.THU NIGHT...E WIND 25 KT BECOMING SE 15 KT AFTER MIDNIGHT. SEAS
7 FT SUBSIDING TO 4 FT AFTER MIDNIGHT. RAIN.
.FRI...SE WIND 20 KT. SEAS 4 FT.
.FRI NIGHT...E WIND 15 KT. SEAS 3 FT.
.SAT...SW WIND 10 KT. SEAS 3 FT.
.SUN...SE WIND 15 KT. SEAS 4 FT.
.MON...E WIND 15 KT. SEAS 4 FT.

$$

PKZ138-301300-
SHELIKOF STRAIT-
350 PM AKDT WED MAR 29 2017

...STORM WARNING THURSDAY...

.TONIGHT...W WIND 10 KT BECOMING NE 20 KT AFTER MIDNIGHT. SEAS 2 FT 
BUILDING TO 5 FT.
.THU...NE WIND 35 KT INCREASING TO 50 KT IN THE AFTERNOON. SEAS 11 
FT BUILDING TO 15 FT. SNOW AND RAIN.
.THU NIGHT...NE WIND 45 KT DIMINISHING TO 25 KT AFTER MIDNIGHT.
SEAS 12 FT SUBSIDING TO 8 FT. RAIN AND SNOW.
.FRI...NE WIND 25 KT. SEAS 6 FT.
.FRI NIGHT...NE WIND 20 KT. SEAS 4 FT.
.SAT...SW WIND 20 KT. SEAS 5 FT.
.SUN...SE WIND 20 KT. SEAS 5 FT.
.MON...E WIND 20 KT. SEAS 5 FT.

$$

PKZ139-301300-
COOK INLET KALGIN ISLAND TO POINT BEDE-
350 PM AKDT WED MAR 29 2017

...STORM WARNING THURSDAY NIGHT...

.TONIGHT...SW WIND 15 KT BECOMING SE 10 KT AFTER MIDNIGHT. SEAS IN
ICE FREE WATERS 3 FT.
.THU...NE WIND 25 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS IN
ICE FREE WATERS 6 FT BUILDING TO 10 FT.
.THU NIGHT...NE WIND 50 KT. SEAS IN ICE FREE WATERS 13 FT. SNOW.
.FRI...NE WIND 35 KT. SEAS IN ICE FREE WATERS 9 FT.
.FRI NIGHT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 6 FT.
.SAT...NE WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.SUN...E WIND 15 KT. SEAS IN ICE FREE WATERS 4 FT.
.MON...NE WIND 15 KT. SEAS IN ICE FREE WATERS 4 FT.

$$

PKZ140-301300-
COOK INLET NORTH OF KALGIN ISLAND-
350 PM AKDT WED MAR 29 2017

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...SW WIND 10 KT.
.THU...NE WIND 10 KT INCREASING TO 25 KT IN THE AFTERNOON.
.THU NIGHT...NE WIND 35 KT.
.FRI...N WIND 25 KT.
.FRI NIGHT...NE WIND 15 KT.
.SAT...NE WIND 15 KT.
.SUN...E WIND 10 KT.
.MON...NE WIND 10 KT.

$$

PKZ141-301300-
KACHEMAK BAY-
350 PM AKDT WED MAR 29 2017

...SMALL CRAFT ADVISORY THURSDAY AND THURSDAY NIGHT...

.TONIGHT...SW WIND 15 KT BECOMING SE 10 KT AFTER MIDNIGHT. SEAS 3 
FT.
.THU...E WIND 20 KT...INCREASING TO 30 KT IN THE AFTERNOON OVER THE
OUTER BAY. SEAS 3 FT BUILDING TO 5 FT.
.THU NIGHT...NE WIND 20 KT...EXCEPT 30 KT OVER THE OUTER BAY. SEAS 6
FT. SNOW AND RAIN.
.FRI...NE WIND 20 KT. SEAS 3 FT.
.FRI NIGHT...NE WIND 15 KT. SEAS 3 FT.
.SAT...SE WIND 10 KT. SEAS 2 FT.
.SUN...SE WIND 15 KT. SEAS 3 FT.
.MON...NE WIND 15 KT. SEAS 3 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
420 AM AKDT Tue Mar 28 2017

.ANALYSIS AND UPPER LEVELS...
Upper level ridging persists over the Bering with a cold upper
level trough running north to south across mainland Alaska. A
surface low to the southwest of Shemya is extending a weak frontal
system across the western Aleutians. The surface low south of the
eastern Aleutians has dropped far enough south that its
associated surface front remains south of the Alaska Peninsula. A
broad surface trough containing several small low pressure
circulations extend from the southwestern Gulf north to the Kenai
Peninsula. Another trough/front stretches from Prince William
Sound along the northern Gulf Coast.

&&

.MODEL DISCUSSION...
Models continue to be challenged in the short term by the array
of various weak troughs and small lows rippling through the Gulf.
The EC appears to have the best initialization of the low east of
Kodiak based on scatterometer winds, while the 06Z NAM looks
closest with the low currently in Prince William Sound. Based on
the weakness of the forcing and continued diversity of model
solutions, confidence continues to remain low on the on the
forecast details through around Wednesday. As a deep north
Pacific low and strong frontal system approach Wednesday night,
models come into significantly better agreement with increased
forecast confidence from Thursday through the end of the week.

&&

.AVIATION...
PANC...With some light precipitation overrunning the Chugach
mountains this morning, periods of light snow are possible at
PANC, however with a dry air mass in place, accumulations should
be minimal with VFR conditions prevailing. A better chance for
accumulating snow will start after midnight tonight and continue
through through Wednesday morning...however confidence remains low
on both the timing of onset of overnight/Wednesday morning snow
and where exactly the snow band will set up.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
Numerous weak features and subtle differences in model solutions
make for a challenging snow forecast for Southcentral. A weak low
over Western Prince William Sound weakens through this morning.
Snow with this feature is expected to be concentrated over the
north Gulf (mixed or rain in Cordova), eastern Kenai. Light snow
however is expected across the Anchorage Bowl and Matanuska Valley
through today. Yet another low heads north tonight and ends up
near the Southern Coast of the Kenai Peninsula and eventually into
Western Prince William Sound or there abouts during the early
morning hours Wednesday. Overall, tonight through Wednesday
afternoon appears to be the best chance for moderate accumulating
snow across the Anchorage Bowl and Matanuska Valley. Wednesday
night, the flow aloft takes a more southwesterly shift and should
push the heavier snow potential north of the Anchorage Bowl.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
The majority of the Southwest Alaska region remains with offshore
flow resulting in drier conditions. The Gulf of Alaska has a weak
low tracking into the northern Gulf before moving inland near
Prince William Sound region by Wednesday morning. Therefore, look
for wrap-around moisture from this system to spread over into the
Lower Kuskokwim Valley southward into the Bristol Bay interior.
The majority of the aforementioned moisture will remain along the
Alaska/Aleutian Range through the midweek as the weak low exits
north into the central Alaska interior.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
The blocking high pressure over the Bering Sea continues to keep
low pressure systems on the periphery south of the Aleutian Chain.
By Wednesday, the jet stream transitions from zonal to meridional
southwesterly flow into the Gulf. While upstream a 170 knot
northwesterly jet streak digs into the base of the longwave
trough over the North Pacific ocean. This results in a storm force
low kicking out from the base of the longwave trough northward
towards the Central Aleutians. By Wednesday evening a 967 mb low
tracks near 47N 170W with an associated weather front stretching
through the Central/Eastern Aleutians. This brings gale force
northeasterly winds along the aforementioned region with
widespread moisture accompanied by warmer temperatures. As this
system intensifies, the pressure gradient will strengthen
resulting in storm force northeasterly winds on the Pacific side
from Dutch Harbor eastward towards the Shumagin Islands by
Thursday morning.

&&

.LONG TERM FORECAST (Days 3 through 7)...
The extended forecast looks to be quite an active one for much of
Alaska. Starting late Wednesday into Thursday, an upper level
trough extending over the Bering Sea and northern Pacific Ocean
will continue to amplify and elongate as an influx of energy from
the coast of Russia moves into the Pacific Ocean. As the trough
amplifies, a warmer and more moist air mass originating in the
subtropics will begin to be advected north toward the gulf coast
of Alaska. While models have struggled recently with the pattern
change, models are in near lock-step through Friday before some
discrepancies begin to develop.

The big story on Thursday and Friday will be a powerful low
pressure system moving northward toward the Alaska Peninsula which
will likely slam the gulf coast with a mixture of rain and snow.
Model guidance shows sfc to 500 mb thicknesses increasing and 850
mb temperatures approaching 0 degrees C which indicates a change
to rainfall along the coast. However, interior locations that see
precipitation will likely remain snow. The low track will be
important as this far west track will likely keep Anchorage and
normal downsloped locations on the dry side. Heading into the
weekend, models begin to struggle with the orientation of the
upper level trough as the ECMWF tries to flatten the trough out
which brings all the energy toward Juneau while the GFS keeps the
energy in the Gulf of Alaska. The take-away story here is that
this active pattern looks to be here to stay for the next 7 to 10
days but it's difficult to see as of now which areas may see the
most rainfall/snowfall. Stay tuned.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Gales 172 174 176.
         Heavy Freezing Spray Warning 179 185 412 414.

&&

SYNOPSIS AND MODEL DISCUSSION...JER
SOUTHCENTRAL ALASKA...BC
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...PD
LONG TERM...MC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
1059 AM AKDT TUE MAR 28 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0606 PM     SNOW             VALDEZ                  61.08N 146.30W
03/27/2017  M7.0 INCH                           AK   CO-OP OBSERVER

            7 INCHES NEW SNOW FELL BETWEEN 6AM AND 6PM MONDAY.

0552 AM     SNOW             2 SE EAGLE RIVER        61.30N 149.52W
03/28/2017  M0.7 INCH                           AK   NWS EMPLOYEE

0821 AM     SNOW             1 NW GLEN ALPS          61.12N 149.72W
03/28/2017  M1.5 INCH                           AK   TRAINED SPOTTER

1000 AM     SNOW             6 SW ANCHORAGE          61.16N 149.98W
03/28/2017  M0.9 INCH                           AK   OFFICIAL NWS OBS

1002 AM     SNOW             VALDEZ                  61.08N 146.30W
03/28/2017  E15.0 INCH                          AK   PUBLIC

            12-15 INCH STORM TOTAL

&&

RDUELL