Small Craft Advisory 342, NWS Anchorage, AK

190 
FZAK51 PAFC 010021 CCA
CWFAER

COASTAL WATERS FORECAST...CORRECTED
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
421 PM AKDT SUN APR 30 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.

PKZ197-011230-
421 PM AKDT SUN APR 30 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...
A FRONT OVER THE CENTRAL AND WESTERN GULF WILL STALL ALONG THE
NORTHERN GULF TONIGHT...THEN DISSIPATE AS IT MOVES INLAND MON 
MORNING. A NORTH PACIFIC LOW WILL MOVE TO 350 NM SOUTHEAST OF 
SITKINAK AT 969 MB TUE AFTERNOON. AN ASSOCIATED FRONT WILL ENTER THE
SOUTHERN GULF TUE MORNING AND MOVE TO THE CENTRAL GULF TUE 
AFTERNOON.


$$

PKZ119-011230-
CAPE SUCKLING TO CAPE CLEARE-
421 PM AKDT SUN APR 30 2017

...GALE WARNING THROUGH MONDAY...

.TONIGHT...SE WIND 15 KT INCREASING TO 35 KT AFTER MIDNIGHT. SEAS 7 
FT BUILDING TO 11 FT AFTER MIDNIGHT. RAIN.
.MON...SE WIND 35 KT BECOMING S 20 KT IN THE AFTERNOON. SEAS 11 FT. 
RAIN.
.MON NIGHT...SE WIND 20 KT. SEAS 9 FT.
.TUE...E WIND 35 KT. SEAS 12 FT.
.TUE NIGHT...E WIND 40 KT. SEAS 19 FT.
.WED...SE WIND 40 KT. SEAS 22 FT.
.THU...E WIND 30 KT. SEAS 17 FT.
.FRI...VARIABLE WIND 10 KT. SEAS 5 FT.

$$

PKZ120-011230-
CAPE CLEARE TO GORE POINT-
421 PM AKDT SUN APR 30 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...E WIND INCREASING TO 30 KT. SEAS 12 FT. RAIN.
.MON...SE WIND 25 KT IN THE MORNING BECOMING VARIABLE 10 KT. SEAS
11 FT. RAIN.
.MON NIGHT...E WIND 20 KT. SEAS 8 FT.
.TUE...E WIND 35 KT. SEAS 10 FT.
.TUE NIGHT...NE WIND 40 KT. SEAS 17 FT.
.WED...E WIND 30 KT. SEAS 16 FT.
.THU...E WIND 25 KT. SEAS 13 FT.
.FRI...VARIABLE WIND 10 KT. SEAS 6 FT.

$$

PKZ121-011230-
RESURRECTION BAY-
421 PM AKDT SUN APR 30 2017

.TONIGHT...S WIND 15 KT IN THE EVENING BECOMING N. SEAS 3 FT. HIGHER
WINDS AND SEAS S OF CAINES HEAD. RAIN.
.MON...N WIND 15 KT BECOMING VARIABLE WIND 10 KT IN THE AFTERNOON.
SEAS 3 FT. HIGHER SEAS S OF CAINES HEAD. RAIN.
.MON NIGHT...S WIND 10 KT. SEAS 2 FT. HIGHER SEAS S OF CAINES
HEAD. RAIN.
.TUE...N WIND 20 KT. SEAS 4 FT.
.TUE NIGHT...N WIND 25 KT. SEAS 5 FT.
.WED...N WIND 20 KT. SEAS 4 FT.
.THU...N WIND 10 KT. SEAS 2 FT.
.FRI...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.

$$

PKZ125-011230-
PRINCE WILLIAM SOUND-
421 PM AKDT SUN APR 30 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...S WIND 15 KT BECOMING SE 25 KT AFTER MIDNIGHT. SEAS 4 FT.
RAIN.
.MON...E WIND 30 KT. SEAS 7 FT. RAIN.
.MON NIGHT...SE WIND 20 KT. SEAS 4 FT. RAIN.
.TUE AND TUE NIGHT...NE WIND 20 KT. SEAS 4 FT.
.WED...E WIND 30 KT. SEAS 7 FT.
.THU...NE WIND 20 KT. SEAS 3 FT.
.FRI...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.

$$

PKZ126-011230-
PORT VALDEZ-
421 PM AKDT SUN APR 30 2017

.TONIGHT...VARIABLE WIND LESS THAN 10 KT BECOMING E 10 KT AFTER
MIDNIGHT. SEAS 2 FT. RAIN.
.MON...E WIND 10 KT. SEAS 2 FT. WIDESPREAD RAIN SHOWERS.
.MON NIGHT...VARIABLE WIND 10 KT. SEAS 2 FT. WIDESPREAD RAIN
SHOWERS.
.TUE AND TUE NIGHT...NE WIND 10 KT. SEAS 2 FT.
.WED...NE WIND 10 KT. SEAS 2 FT.
.THU THROUGH FRI...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.

$$

PKZ127-011230-
VALDEZ NARROWS-
421 PM AKDT SUN APR 30 2017

.TONIGHT...VARIABLE WIND 10 KT BECOMING NE 20 KT AFTER MIDNIGHT.
SEAS 3 FT. RAIN.
.MON...NE WIND 20 KT. SEAS 3 FT. RAIN.
.MON NIGHT...NE WIND 15 KT DIMINISHING TO 10 KT AFTER MIDNIGHT.
SEAS 3 FT. WIDESPREAD RAIN SHOWERS.
.TUE...NE WIND 15 KT. SEAS 3 FT.
.TUE NIGHT...NE WIND 25 KT. SEAS 3 FT.
.WED...NE WIND 30 KT. SEAS 3 FT.
.THU...NE WIND 10 KT. SEAS 2 FT.
.FRI...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.

$$

PKZ128-011230-
VALDEZ ARM-
421 PM AKDT SUN APR 30 2017

.TONIGHT...SE WIND 10 KT INCREASING TO 15 KT AFTER MIDNIGHT. SEAS 3 
FT. RAIN.
.MON...NE WIND 20 KT. SEAS 4 FT. RAIN.
.MON NIGHT...NE WIND 15 KT DIMINISHING TO 10 KT AFTER MIDNIGHT.
SEAS 3 FT. RAIN.
.TUE AND TUE NIGHT...NE WIND 15 KT. SEAS 3 FT.
.WED...NE WIND 20 KT. SEAS 4 FT.
.THU...NE WIND 10 KT. SEAS 2 FT.
.FRI...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.

$$

PKZ129-011230-
PASSAGE CANAL-
421 PM AKDT SUN APR 30 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...E WIND INCREASING TO 25 KT. SEAS 4 FT. WIDESPREAD RAIN 
SHOWERS.
.MON...E WIND 25 KT. SEAS 4 FT. RAIN.
.MON NIGHT...E WIND 15 KT. SEAS 2 FT. RAIN.
.TUE AND TUE NIGHT...E WIND 15 KT. SEAS 2 FT.
.WED...E WIND 15 KT. SEAS 2 FT.
.THU...E WIND 10 KT. SEAS 2 FT.
.FRI...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.

$$

PKZ130-011230-
WEST OF BARREN ISLANDS INCLUDING KAMISHAK BAY-
421 PM AKDT SUN APR 30 2017

...GALE WARNING TONIGHT...

.TONIGHT...E WIND INCREASING TO 40 KT...THEN DIMINISHING TO 30 KT 
AFTER MIDNIGHT. SEAS 13 FT. RAIN.
.MON...E WIND 25 KT DIMINISHING TO 15 KT IN THE AFTERNOON. SEAS
6 FT. RAIN.
.MON NIGHT...E WIND 20 KT. SEAS 7 FT. RAIN SHOWERS.
.TUE...NE WIND 25 KT. SEAS 7 FT.
.TUE NIGHT...N WIND 30 KT. SEAS 13 FT.
.WED...NW WIND 25 KT. SEAS 5 FT.
.THU...E WIND 20 KT. SEAS 5 FT.
.FRI...SE WIND 15 KT. SEAS 3 FT.

$$

PKZ131-011230-
BARREN ISLANDS EAST-
421 PM AKDT SUN APR 30 2017

...GALE WARNING TONIGHT...

.TONIGHT...SE WIND 35 KT. SEAS 12 FT. RAIN.
.MON...S WIND 15 KT. SEAS 9 FT. RAIN.
.MON NIGHT...SE WIND 20 KT. SEAS 7 FT. RAIN SHOWERS.
.TUE...NE WIND 40 KT. SEAS 10 FT.
.TUE NIGHT...NE WIND 40 KT. SEAS 17 FT.
.WED...N WIND 30 KT. SEAS 16 FT.
.THU...NE WIND 20 KT. SEAS 10 FT.
.FRI...SE WIND 15 KT. SEAS 5 FT.

$$

PKZ132-011230-
MARMOT ISLAND TO SITKINAK-
421 PM AKDT SUN APR 30 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...S WIND 25 KT. SEAS 11 FT. RAIN. A SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT.
.MON...S WIND 15 KT. SEAS 9 FT. RAIN SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING.
.MON NIGHT...SE WIND 15 KT. SEAS 8 FT.
.TUE...NE WIND 30 KT. SEAS 9 FT.
.TUE NIGHT...N WIND 40 KT. SEAS 17 FT.
.WED...NW WIND 35 KT. SEAS 16 FT.
.THU...W WIND 25 KT. SEAS 9 FT.
.FRI...S WIND 15 KT. SEAS 6 FT.

$$

PKZ136-011230-
CHINIAK BAY-
421 PM AKDT SUN APR 30 2017

.TONIGHT...S WIND 20 KT. SEAS 4 FT SUBSIDING TO 2 FT AFTER
MIDNIGHT. WIDESPREAD RAIN SHOWERS.
.MON...SE WIND 10 KT. SEAS 3 FT. WIDESPREAD RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS.
.MON NIGHT...SE WIND 15 KT BECOMING E 10 KT AFTER MIDNIGHT. SEAS
4 FT. RAIN SHOWERS.
.TUE...NE WIND 25 KT. SEAS 9 FT.
.TUE NIGHT...N WIND 30 KT. SEAS 12 FT.
.WED...NW WIND 30 KT. SEAS 6 FT.
.THU...NW WIND 10 KT. SEAS 1 FOOT.
.FRI...S WIND 10 KT. SEAS 3 FT.

$$

PKZ137-011230-
MARMOT BAY-
421 PM AKDT SUN APR 30 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SE WIND 25 KT BECOMING S 15 KT AFTER MIDNIGHT. SEAS 7
FT SUBSIDING TO 2 FT AFTER MIDNIGHT. WIDESPREAD RAIN SHOWERS.
.MON...SE WIND 10 KT INCREASING TO 15 KT IN THE AFTERNOON. SEAS
3 FT. WIDESPREAD RAIN SHOWERS AND A SLIGHT CHANCE OF 
THUNDERSTORMS.
.MON NIGHT...SE WIND 15 KT BECOMING E 10 KT AFTER MIDNIGHT. SEAS
4 FT. RAIN SHOWERS.
.TUE...NE WIND 30 KT. SEAS 10 FT.
.TUE NIGHT...N WIND 30 KT. SEAS 11 FT.
.WED...NW WIND 30 KT. SEAS 6 FT.
.THU...NW WIND 10 KT. SEAS 2 FT.
.FRI...S WIND 10 KT. SEAS 3 FT.

$$

PKZ138-011230-
SHELIKOF STRAIT-
421 PM AKDT SUN APR 30 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NE WIND 30 KT DIMINISHING TO 15 KT AFTER MIDNIGHT. SEAS 10
FT SUBSIDING TO 5 FT AFTER MIDNIGHT. RAIN.
.MON...E WIND 15 KT. SEAS 4 FT. RAIN SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
.MON NIGHT...E WIND 20 KT. SEAS 4 FT.
.TUE...NE WIND 30 KT. SEAS 10 FT.
.TUE NIGHT...N WIND 30 KT. SEAS 10 FT.
.WED...NW WIND 20 KT. SEAS 4 FT.
.THU...NW WIND 15 KT. SEAS 3 FT.
.FRI...SE WIND 15 KT. SEAS 3 FT.

$$

PKZ139-011230-
COOK INLET KALGIN ISLAND TO POINT BEDE-
421 PM AKDT SUN APR 30 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...NE WIND INCREASING TO 25 KT. SEAS 8 FT. RAIN.
.MON...NE WIND 25 KT BECOMING N 15 KT IN THE AFTERNOON. SEAS 8 FT
SUBSIDING TO 4 FT IN THE AFTERNOON. RAIN. A SLIGHT CHANCE OF 
THUNDERSTORMS IN THE AFTERNOON.
.MON NIGHT...NE WIND 10 KT INCREASING TO 15 KT AFTER MIDNIGHT.
SEAS 3 FT. RAIN SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING.
.TUE...NE WIND 25 KT. SEAS 7 FT.
.TUE NIGHT...N WIND 30 KT. SEAS 12 FT.
.WED...N WIND 25 KT. SEAS 6 FT.
.THU...N WIND 20 KT. SEAS 5 FT.
.FRI...S WIND 10 KT. SEAS 2 FT.

$$

PKZ140-011230-
COOK INLET NORTH OF KALGIN ISLAND-
421 PM AKDT SUN APR 30 2017

...SMALL CRAFT ADVISORY MONDAY...

.TONIGHT...NE WIND INCREASING TO 20 KT. SEAS 3 FT BUILDING TO 6 FT 
AFTER MIDNIGHT.
.MON...NE WIND 25 KT. SEAS 7 FT. RAIN SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
.MON NIGHT...NE WIND 15 KT DIMINISHING TO 10 KT AFTER MIDNIGHT.
SEAS 3 FT. RAIN SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE 
EVENING.
.TUE AND TUE NIGHT...N WIND 20 KT. SEAS 6 FT.
.WED...NE WIND 20 KT. SEAS 5 FT.
.THU...E WIND 10 KT. SEAS 3 FT.
.FRI...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.

$$

PKZ141-011230-
KACHEMAK BAY-
421 PM AKDT SUN APR 30 2017

.TONIGHT...E WIND INCREASING TO 20 KT. SEAS 4 FT. RAIN.
.MON...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT. RAIN. A SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON.
.MON NIGHT...SE WIND 10 KT. SEAS 2 FT. RAIN SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING.
.TUE...NE WIND 20 KT. SEAS 3 FT.
.TUE NIGHT...N WIND 25 KT. SEAS 4 FT.
.WED...N WIND 20 KT. SEAS 3 FT.
.THU...NE WIND 15 KT. SEAS 2 FT.
.FRI...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.

$$

796 
FZAK51 PAFC 011158
CWFAER

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
358 AM AKDT MON MAY 1 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.

PKZ197-020045-
358 AM AKDT MON MAY 1 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A FRONT STALLS OVER THE NORTH GULF BY TUE MORNING. NORTH PACIFIC 
TROUGHS SLIDE THROUGH THE CENTRAL GULF THROUGH WED MORNING. A 971 
NORTH PACIFIC LOW ENTERS THE WESTERN GULF AND MOVES TO 225 NM EAST
OF KODIAK CITY BY WED MORNING.

$$

PKZ119-020045-
CAPE SUCKLING TO CAPE CLEARE-
358 AM AKDT MON MAY 1 2017

...GALE WARNING TODAY AND TUESDAY...

.TODAY...SE WIND 35 KT BECOMING S 15 KT IN THE AFTERNOON. NEAR THE
COAST, E WIND 35 KT WITH GUSTS TO 45 KT IN THE MORNING. SEAS 11 FT. 
RAIN.
.TONIGHT...SE WIND 20 KT. SEAS 9 FT.
.TUE...E WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. SEAS
13 FT.
.TUE NIGHT...NE WIND 40 KT. SEAS 21 FT.
.WED...E WIND 40 KT. SEAS 24 FT.
.THU...SE WIND 35 KT. SEAS 17 FT.
.FRI...S WIND 15 KT. SEAS 7 FT.

$$

PKZ120-020045-
CAPE CLEARE TO GORE POINT-
358 AM AKDT MON MAY 1 2017

...GALE WARNING TUESDAY...

.TODAY...SE WIND 20 KT. SEAS 9 FT. RAIN.
.TONIGHT...SE WIND 15 KT. SEAS 9 FT.
.TUE...NE WIND 35 KT. SEAS 7 FT BUILDING TO 12 FT IN THE
AFTERNOON. RAIN.
.TUE NIGHT...NE WIND 40 KT. SEAS 18 FT.
.WED...NE WIND 35 KT. SEAS 17 FT.
.THU...NE WIND 25 KT. SEAS 14 FT.
.FRI...SE WIND 15 KT. SEAS 7 FT.

$$

PKZ121-020045-
RESURRECTION BAY-
358 AM AKDT MON MAY 1 2017

.TODAY...N WIND 15 KT BECOMING VARIABLE 10 KT IN THE AFTERNOON. SEAS
3 FT. HIGHER SEAS S OF CAINES HEAD. RAIN.
.TONIGHT...S WIND 10 KT. SEAS 2 FT. HIGHER SEAS S OF CAINES HEAD.
RAIN AND SNOW.
.TUE...N WIND 20 KT. SEAS 4 FT. HIGHER SEAS S OF CAINES HEAD. RAIN
WITH SNOW.
.TUE NIGHT...N WIND 25 KT. SEAS 5 FT.
.WED...N WIND 20 KT. SEAS 4 FT.
.THU...N WIND 10 KT. SEAS 2 FT.
.FRI...VARIABLE WIND 10 KT. SEAS 2 FT.

$$

PKZ125-020045-
PRINCE WILLIAM SOUND-
358 AM AKDT MON MAY 1 2017

...GALE WARNING TODAY...

.TODAY...E WIND 35 KT WITH GUSTS TO 45 KT IN THE MORNING. SEAS 7 FT.
RAIN.
.TONIGHT...SE WIND 15 KT. SEAS 3 FT. RAIN.
.TUE...NE WIND 20 KT. SEAS 3 FT. RAIN.
.TUE NIGHT...N WIND 25 KT. SEAS 4 FT.
.WED...E WIND 40 KT. SEAS 10 FT.
.THU...E WIND 30 KT. SEAS 6 FT.
.FRI...E WIND 10 KT. SEAS 2 FT.

$$

PKZ126-020045-
PORT VALDEZ-
358 AM AKDT MON MAY 1 2017

.TODAY...E WIND 10 KT. SEAS 2 FT. RAIN AND SNOW SHOWERS.
.TONIGHT...VARIABLE WIND 10 KT. SEAS 2 FT. RAIN SHOWERS.
.TUE...E WIND 10 KT. SEAS 2 FT.
.TUE NIGHT...NE WIND 10 KT. SEAS 2 FT.
.WED...E WIND 10 KT. SEAS 2 FT.
.THU AND FRI...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.

$$

PKZ127-020045-
VALDEZ NARROWS-
358 AM AKDT MON MAY 1 2017

.TODAY...NE WIND 20 KT. SEAS 3 FT. RAIN AND SNOW.
.TONIGHT...NE WIND 15 KT DIMINISHING TO 10 KT AFTER MIDNIGHT. SEAS
3 FT. RAIN AND SNOW SHOWERS.
.TUE...NE WIND 10 KT INCREASING TO 15 KT IN THE AFTERNOON. SEAS
3 FT. RAIN SHOWERS.
.TUE NIGHT...NE WIND 25 KT. SEAS 3 FT.
.WED...NE WIND 30 KT. SEAS 3 FT.
.THU...NE WIND 20 KT. SEAS 3 FT.
.FRI...VARIABLE WIND 10 KT. SEAS 2 FT.

$$

PKZ128-020045-
VALDEZ ARM-
358 AM AKDT MON MAY 1 2017

.TODAY...NE WIND 20 KT. SEAS 4 FT. RAIN.
.TONIGHT...NE WIND 15 KT DIMINISHING TO 10 KT AFTER MIDNIGHT. SEAS
3 FT. RAIN AND SNOW.
.TUE...NE WIND 10 KT BECOMING NE 15 KT IN THE AFTERNOON. SEAS 3
FT. RAIN SHOWERS.
.TUE NIGHT...NE WIND 15 KT. SEAS 3 FT.
.WED...NE WIND 20 KT. SEAS 4 FT.
.THU...NE WIND 15 KT. SEAS 3 FT.
.FRI...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.

$$

PKZ129-020045-
PASSAGE CANAL-
358 AM AKDT MON MAY 1 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...E WIND 25 KT. SEAS 4 FT. RAIN AND SNOW.
.TONIGHT...E WIND 15 KT. SEAS 2 FT. RAIN AND SNOW.
.TUE...E WIND 15 KT. SEAS 2 FT. RAIN.
.TUE NIGHT...E WIND 15 KT. SEAS 2 FT.
.WED...E WIND 20 KT. SEAS 3 FT.
.THU...E WIND 15 KT. SEAS 2 FT.
.FRI...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.

$$

PKZ130-020045-
WEST OF BARREN ISLANDS INCLUDING KAMISHAK BAY-
358 AM AKDT MON MAY 1 2017

...SMALL CRAFT ADVISORY TUESDAY...

.TODAY...E WIND 20 KT. SEAS 4 FT. RAIN SHOWERS.
.TONIGHT...E WIND 20 KT. SEAS 5 FT.
.TUE...E WIND 20 KT BECOMING NE 30 KT IN THE AFTERNOON. SEAS 5 FT
BUILDING TO 9 FT IN THE AFTERNOON.
.TUE NIGHT...N WIND 30 KT. SEAS 9 FT.
.WED THROUGH THU...NW WIND 25 KT. SEAS 6 FT.
.FRI...SE WIND 20 KT. SEAS 5 FT.

$$

PKZ131-020045-
BARREN ISLANDS EAST-
358 AM AKDT MON MAY 1 2017

...GALE WARNING TUESDAY...

.TODAY...SE WIND 15 KT. SEAS 9 FT. RAIN SHOWERS.
.TONIGHT...SE WIND 20 KT. SEAS 8 FT.
.TUE...E WIND 25 KT BECOMING NE 35 KT IN THE AFTERNOON. SEAS 7 FT
BUILDING TO 12 FT IN THE AFTERNOON. RAIN SHOWERS.
.TUE NIGHT...N WIND 40 KT. SEAS 18 FT.
.WED...N WIND 30 KT. SEAS 16 FT.
.THU...N WIND 20 KT. SEAS 11 FT.
.FRI...SE WIND 15 KT. SEAS 7 FT.

$$

PKZ132-020045-
MARMOT ISLAND TO SITKINAK-
358 AM AKDT MON MAY 1 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...S WIND 15 KT. SEAS 9 FT.
.TONIGHT...S WIND 20 KT. SEAS 9 FT.
.TUE...NE WIND 30 KT. SEAS 6 FT BUILDING TO 10 FT IN THE
AFTERNOON. RAIN SHOWERS.
.TUE NIGHT...N WIND 40 KT. SEAS 19 FT.
.WED...NW WIND 30 KT. SEAS 16 FT.
.THU...NW WIND 25 KT. SEAS 9 FT.
.FRI...S WIND 15 KT. SEAS 6 FT.

$$

PKZ136-020045-
CHINIAK BAY-
358 AM AKDT MON MAY 1 2017

...SMALL CRAFT ADVISORY TUESDAY...

.TODAY...SE WIND 10 KT INCREASING TO 15 KT IN THE AFTERNOON. SEAS
3 FT. RAIN SHOWERS.
.TONIGHT...SE WIND 15 KT. SEAS 3 FT. RAIN SHOWERS.
.TUE...NE WIND 15 KT INCREASING TO 25 KT IN THE AFTERNOON. SEAS 4
FT BUILDING TO 9 FT IN THE AFTERNOON. RAIN.
.TUE NIGHT...N WIND 30 KT. SEAS 11 FT.
.WED...NW WIND 25 KT. SEAS 4 FT.
.THU...NW WIND 15 KT. SEAS 2 FT.
.FRI...SE WIND 10 KT. SEAS 3 FT.

$$

PKZ137-020045-
MARMOT BAY-
358 AM AKDT MON MAY 1 2017

...SMALL CRAFT ADVISORY TUESDAY...

.TODAY...SE WIND 10 KT INCREASING TO 15 KT IN THE AFTERNOON. SEAS
4 FT. RAIN SHOWERS.
.TONIGHT...SE WIND 15 KT. SEAS 4 FT. RAIN SHOWERS.
.TUE...E WIND 15 KT BECOMING NE 30 KT IN THE AFTERNOON. SEAS 4 FT
BUILDING TO 11 FT IN THE AFTERNOON. RAIN SHOWERS.
.TUE NIGHT...N WIND 30 KT. SEAS 12 FT.
.WED...NW WIND 25 KT. SEAS 4 FT.
.THU...NW WIND 15 KT. SEAS 2 FT.
.FRI...SE WIND 10 KT. SEAS 3 FT.

$$

PKZ138-020045-
SHELIKOF STRAIT-
358 AM AKDT MON MAY 1 2017

...SMALL CRAFT ADVISORY TUESDAY...

.TODAY...E WIND 15 KT. SEAS 3 FT.
.TONIGHT...E WIND 15 KT. SEAS 3 FT.
.TUE...NE WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. SEAS
5 FT BUILDING TO 8 FT IN THE AFTERNOON.
.TUE NIGHT...N WIND 30 KT. SEAS 9 FT.
.WED...NW WIND 25 KT. SEAS 5 FT.
.THU...NW WIND 20 KT. SEAS 3 FT.
.FRI...E WIND 15 KT. SEAS 3 FT.

$$

PKZ139-020045-
COOK INLET KALGIN ISLAND TO POINT BEDE-
358 AM AKDT MON MAY 1 2017

...SMALL CRAFT ADVISORY TUESDAY...

.TODAY...NE WIND 20 KT. SEAS 5 FT SUBSIDING. RAIN SHOWERS.
.TONIGHT...NE WIND 10 KT INCREASING TO 15 KT AFTER MIDNIGHT. SEAS
3 FT.
.TUE...NE WIND 20 KT BECOMING N 30 KT IN THE AFTERNOON. SEAS 5 FT
BUILDING TO 9 FT IN THE AFTERNOON.
.TUE NIGHT...N WIND 30 KT. SEAS 8 FT.
.WED...N WIND 30 KT. SEAS 7 FT.
.THU...N WIND 25 KT. SEAS 6 FT.
.FRI...SE WIND 10 KT. SEAS 2 FT.

$$

PKZ140-020045-
COOK INLET NORTH OF KALGIN ISLAND-
358 AM AKDT MON MAY 1 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NE WIND 25 KT. SEAS 6 FT.
.TONIGHT...SE WIND 15 KT BECOMING NE 10 KT AFTER MIDNIGHT.
SEAS 2 FT.
.TUE...N WIND 20 KT. SEAS BUILDING TO 5 FT.
.TUE NIGHT...N WIND 20 KT. SEAS 5 FT.
.WED...NE WIND 25 KT. SEAS 5 FT.
.THU...NE WIND 15 KT. SEAS 3 FT.
.FRI...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.

$$

PKZ141-020045-
KACHEMAK BAY-
358 AM AKDT MON MAY 1 2017

...SMALL CRAFT ADVISORY TUESDAY...

.TODAY...VARIABLE WIND LESS THAN 10 KT BECOMING SE 10 KT IN THE
AFTERNOON. SEAS 2 FT. RAIN.
.TONIGHT...E WIND 15 KT DIMINISHING TO 10 KT AFTER MIDNIGHT. SEAS
2 FT. RAIN SHOWERS.
.TUE...NE WIND 10 KT BECOMING N 25 KT IN THE AFTERNOON. SEAS 2 FT
BUILDING TO 4 FT IN THE AFTERNOON.
.TUE NIGHT...N WIND 25 KT. SEAS 4 FT.
.WED THROUGH THU...N WIND 20 KT. SEAS 3 FT.
.FRI...SE WIND 10 KT. SEAS 3 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
526 AM AKDT Sun Apr 30 2017

.ANALYSIS AND UPPER LEVELS...
The Central Aleutians has an upper level closed low just east
Atka, and is vertically stacked through the lower levels. This
feature is reflected at the surface with a 988 mb low located over
the central Bering with an associated front extending eastward
before crossing through the Eastern Aleutians this morning. This
synoptic feature is bringing gusty small-craft southeasterly winds
accompanied by stratus/rain through the aforementioned region.
The winds on the backside of this low pressure system are
predominantly all westerly, and reflected with the surface
observations along the Chain this morning.

Meanwhile, the northern Gulf has a shortwave pushing onshore, and
the Middleton radar imagery is showing a large swath of rain
spreading into the northern coastal communities. The Anchorage
Bowl will remain downsloped drier conditions through the rest of
the weekend. The extensive cloud cover from the shortwave entering
the northern Gulf is moderating the temperatures along the
Eastern Kenai Peninsula northward through Prince William Sound,
keeping them in the lower to mid 40's. While farther inland areas
are receiving mid-high clouds streaming from the Gulf with high
temperatures will remain in the 50's.

&&

.MODEL DISCUSSION...
The models continue in good agreement with large synoptic features
through the weekend. The Southwest Alaska region has a frontal
boundary sweeping through this afternoon before falling apart as
it moves inland. The broad low pressure over the eastern Bering
and Aleutians remains almost stationary before phasing in with a
North Pacific low by Tuesday morning. While the northern Gulf has
a ridge building in briefly with an upstream front moving into the
Gulf by Sunday evening. The next major North Pacific low pressure
system tracks to the lower Gulf by Tuesday afternoon. The GFS was
the preferred model of choice up to this point, but the models
are struggling with the timing/strength of this next system. The
NAM seems to be the outlier with a faster trend, and the GFS,
ECMWF, and Canadian solutions are in better agreement. Therefore,
the forecast confidence starts out above average, but diminishes
with this next system entering the Gulf by Tuesday afternoon time-
frame.

&&

.AVIATION...
PANC...Looks to remain under the influence of VFR conditions. The
only issue will be with the increase of the southerly Turnagain
Arm winds streaming into the airport this afternoon through the
early evening hours. Look for the winds to weaken by late Sunday
evening time-frame.

&&

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

The sounding this morning indicates steep lapse rates and dry air all
the way to 700 mb. As a result, while radar indicates decent
echoes and mid-level moisture, no precipitation is currently
reaching the ground. Convective resolving models such as the HRRR
indicate the possibility of another round of convective showers
developing across the Susitna Valley this afternoon and evening.
It is likely that more moisture will be available in the Susitna
Valley where downsloping and lower level drying will be more
limited.

A front in the southwest corner of the Gulf of Alaska will move
northeastward quickly today towards the northern Gulf Coast. This
front will support gusty east winds first across Kodiak Island
and then through local gaps as it approaches the mainland tonight.
While some gusts are initially anticipated in Anchorage this
evening, Turnagain Arm gap winds are expected to eventually bend
towards the south tonight due to lower pressure in the south.
Perpendicular flow should limit precipitation across the west
Kenai Peninsula and Anchorage Bowl. However, if lapse rates remain
as steep and saturated as models indicate above the mountain
tops, some spillover showers are possible in the Anchorage Bowl
tonight into tomorrow morning. &&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
The trough rotating from the Alaska Peninsula, across Bristol Bay
into Southwest Alaska will increase showers across the area this
afternoon and evening. Additionally, as the trough rotates
through, easterly winds will increase with the strongest winds
through gaps and passes in the Aleutian Range. These easterly
winds will lead to downsloping in the lee of the mountains and the
development of a small rain shadow where showers are sparser.
Although showers will become less organized tonight once the
trough is past, they will pick up again Monday afternoon and
evening as the presence of the cool upper low along the Alaska
Peninsula keeps the atmosphere unstable. Diurnal shower activity
will diminish somewhat Tuesday as the upper low swings south in
response to a very strong low tracking into the Gulf.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
The broad low complex centered along and north of the central and
eastern Aleutians will gradually fill as it drifts east to be
centered over the Alaska Peninsula tonight. Ridging will build
over the western Aleutians Monday then shift east to the central
Aleutians and central Bering Tuesday and Tuesday night as a low
pressure system approaches and tracks into the western Aleutians.
The upper low of the Alaska Peninsula will drop weaken and south
Tuesday as a very strong low tracks into the Gulf.

&&

.LONG TERM FORECAST (Days 3 through 7)...
There is fair agreement amongst the models of a deep low moving
into the Gulf around Tuesday evening. However, they are struggling
with the intensity of the low which could be the difference
between a gale force low and a storm force low. For now there is
higher confidence in the low remaining gale force. Regardless,
this system looks to bring rain to areas around Southcentral
Alaska into Thursday, with the heaviest for the north Gulf coast.
Meanwhile ridging will have moved in over the Bering with another
system trying to approach the Aleutians from the west, but being
largely held at bay by the ridge.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...GALES 119 125 130 131.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...PD
SOUTHCENTRAL ALASKA...ELN
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...JR
LONG TERM...DK