Small Craft Advisory 231, NWS Anchorage, AK

545 
FZAK51 PAFC 192319
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
319 PM AKDT Mon Mar 19 2018

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.

PKZ197-201215-
319 PM AKDT Mon Mar 19 2018
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...
A front pushes across the northeast Gulf through tonight. A 1011 
mb low near Cape Yakataga exits the Southeastern Gulf for Wed 
morning.

$$

PKZ119-201215-
Cape Suckling to Cape Cleare-
319 PM AKDT Mon Mar 19 2018

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...NW wind 35 kt. Seas 13 ft.
.TUE...NW wind 40 kt. Seas 14 ft.
.TUE NIGHT...NW wind 40 kt. Seas 12 ft.
.WED...N wind 35 kt. Seas 11 ft.
.WED NIGHT...N wind 30 kt. Seas 9 ft.
.THU...N wind 25 kt. Seas 7 ft.
.FRI THROUGH SAT...SE wind 15 kt. Seas 5 ft.

$$

PKZ120-201215-
Cape Cleare to Gore Point-
319 PM AKDT Mon Mar 19 2018

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...W wind 35 kt. Seas 11 ft.
.TUE...NW wind 35 kt. Seas 11 ft.
.TUE NIGHT...NW wind 30 kt. Seas 10 ft.
.WED...N wind 30 kt. Seas 8 ft.
.WED NIGHT...N wind 25 kt. Seas 7 ft.
.THU...N wind 20 kt. Seas 6 ft.
.FRI THROUGH SAT...E wind 15 kt. Seas 4 ft.

$$

PKZ121-201215-
Resurrection Bay-
319 PM AKDT Mon Mar 19 2018

...GALE WARNING TUESDAY AND TUESDAY NIGHT...

.TONIGHT...N wind 30 kt. Gusts to 40 kt. Seas 6 ft. Freezing spray 
after midnight.
.TUE...N wind 35 kt. Seas 7 ft. Freezing spray in the morning.
.TUE NIGHT...N wind 40 kt. Seas 9 ft. Freezing spray.
.WED...N wind 40 kt. Seas 9 ft.
.WED NIGHT...N wind 30 kt. Seas 6 ft.
.THU...N wind 25 kt. Seas 5 ft.
.FRI...N wind 20 kt. Seas 4 ft.
.SAT...N wind 25 kt. Seas 5 ft.

$$

PKZ125-201215-
Prince William Sound-
319 PM AKDT Mon Mar 19 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 7 ft.
.TUE...NW wind 30 kt. Seas 6 ft.
.TUE NIGHT...NW wind 30 kt. Seas 6 ft.
.WED AND WED NIGHT...N wind 25 kt. Seas 5 ft.
.THU...N wind 20 kt. Seas 3 ft.
.FRI THROUGH SAT...E wind 10 kt. Seas 2 ft.

$$

PKZ126-201215-
Port Valdez-
319 PM AKDT Mon Mar 19 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...Variable wind 10 kt becoming NE wind 25 kt by midnight. 
Seas building to 5 ft. Freezing spray after midnight.
.TUE...NE wind 25 kt. Gusts to 40 kt near Valdez. Seas 5 ft. 
Freezing spray.
.TUE NIGHT...NE wind 30 kt. Gusts to 45 kt near Valdez. Seas 6 ft.
.WED AND WED NIGHT...NE wind 30 kt. Seas 6 ft.
.THU...NE wind 25 kt. Seas 5 ft.
.FRI...NE wind 15 kt. Seas 3 ft.
.SAT...NE wind 10 kt. Seas 2 ft.

$$

PKZ127-201215-
Valdez Narrows-
319 PM AKDT Mon Mar 19 2018

...GALE WARNING TUESDAY AND TUESDAY NIGHT...

.TONIGHT...Variable wind 10 kt becoming N wind 25 kt by midnight. 
Seas building to 4 ft.
.TUE...N wind 30 kt increasing to 40 kt in the afternoon. Seas 4
ft. Freezing spray.
.TUE NIGHT...N wind 40 kt. Seas 4 ft.
.WED AND WED NIGHT...N wind 40 kt. Seas 4 ft.
.THU...N wind 40 kt. Seas 4 ft.
.FRI...NE wind 20 kt. Seas 3 ft.
.SAT...NE wind 10 kt. Seas 2 ft.

$$

PKZ128-201215-
Valdez Arm-
319 PM AKDT Mon Mar 19 2018

...GALE WARNING TUESDAY AND TUESDAY NIGHT...

.TONIGHT...Variable wind 10 kt becoming N wind 25 kt by midnight. 
Seas building to 5 ft.
.TUE...N wind 25 kt increasing to 35 kt in the afternoon. Seas 7
ft.
.TUE NIGHT...N wind 40 kt. Seas 8 ft.
.WED AND WED NIGHT...N wind 40 kt. Seas 8 ft.
.THU...N wind 35 kt. Seas 7 ft.
.FRI...NE wind 20 kt. Seas 4 ft.
.SAT...NE wind 10 kt. Seas 2 ft.

$$

PKZ129-201215-
Passage Canal-
319 PM AKDT Mon Mar 19 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...W wind 30 kt. Gusts to 45 kt near Whittier. Seas 5 ft. 
Freezing spray.
.TUE...W wind 25 kt. Gusts to 40 kt near Whittier. Seas 4 ft. 
Freezing spray.
.TUE NIGHT...W wind 30 kt. Gusts to 45 kt near Whittier. Seas 5 ft. 
Freezing spray.
.WED...W wind 25 kt. Seas 4 ft.
.WED NIGHT...W wind 15 kt. Seas 2 ft.
.THU...W wind 10 kt. Seas 2 ft.
.FRI THROUGH SAT...E wind 15 kt. Seas 2 ft.

$$

PKZ130-201215-
West of Barren Islands including Kamishak Bay-
319 PM AKDT Mon Mar 19 2018

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...W wind 40 kt. Seas 15 ft.
.TUE...W wind 40 kt. Seas 16 ft.
.TUE NIGHT...NW wind 40 kt. Seas 16 ft. Freezing spray.
.WED...NW wind 30 kt. Seas 9 ft.
.WED NIGHT...NW wind 25 kt. Seas 7 ft.
.THU...N wind 25 kt. Seas 7 ft.
.FRI THROUGH SAT...Variable wind 10 kt. Seas 3 ft.

$$

PKZ131-201215-
Barren Islands East-
319 PM AKDT Mon Mar 19 2018

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...NW wind 40 kt. Seas 18 ft.
.TUE...NW wind 40 kt. Seas 18 ft.
.TUE NIGHT...NW wind 40 kt. Seas 18 ft.
.WED AND WED NIGHT...N wind 30 kt. Seas 10 ft.
.THU...NW wind 25 kt. Seas 7 ft.
.FRI THROUGH SAT...Variable wind 10 kt. Seas 3 ft.

$$

PKZ132-201215-
Marmot Island to Sitkinak-
319 PM AKDT Mon Mar 19 2018

...GALE WARNING TUESDAY AND TUESDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 9 ft.
.TUE...NW wind 40 kt. Seas 12 ft.
.TUE NIGHT...NW wind 40 kt. Seas 12 ft.
.WED...NW wind 35 kt. Seas 10 ft.
.WED NIGHT...N wind 30 kt. Seas 10 ft.
.THU...NW wind 25 kt. Seas 8 ft.
.FRI THROUGH SAT...W wind 15 kt. Seas 6 ft.

$$

PKZ136-201215-
Chiniak Bay-
319 PM AKDT Mon Mar 19 2018

...SMALL CRAFT ADVISORY TUESDAY AND TUESDAY NIGHT...

.TONIGHT...NW wind 20 kt. Gusts to 35 kt. Seas 3 ft.
.TUE...NW wind 30 kt. Gusts to 45 kt. Seas 5 ft.
.TUE NIGHT...NW wind 30 kt. Seas 5 ft.
.WED AND WED NIGHT...NW wind 25 kt. Seas 3 ft.
.THU...NW wind 20 kt. Seas 3 ft.
.FRI...Variable wind less than 10 kt. Seas 3 ft.
.SAT...Variable wind less than 10 kt. Seas 1 ft.

$$

PKZ137-201215-
Marmot Bay-
319 PM AKDT Mon Mar 19 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 4 ft.
.TUE...NW wind 30 kt. Seas 5 ft.
.TUE NIGHT...NW wind 30 kt. Seas 4 ft.
.WED AND WED NIGHT...NW wind 25 kt. Seas 4 ft.
.THU...NW wind 20 kt. Seas 3 ft.
.FRI THROUGH SAT...Variable wind less than 10 kt. Seas 3 ft.

$$

PKZ138-201215-
Shelikof Strait-
319 PM AKDT Mon Mar 19 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 8 ft.
.TUE...W wind 30 kt. Seas 10 ft.
.TUE NIGHT...NW wind 25 kt. Seas 6 ft.
.WED...NW wind 20 kt. Seas 4 ft.
.WED NIGHT...N wind 25 kt. Seas 5 ft.
.THU...N wind 20 kt. Seas 4 ft.
.FRI THROUGH SAT...Variable wind 10 kt. Seas 3 ft.

$$

PKZ139-201215-
Cook Inlet Kalgin Island to Point Bede-
319 PM AKDT Mon Mar 19 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...W wind 25 kt. Seas in ice free waters 7 ft.
.TUE...W wind 30 kt. Seas in ice free waters 8 ft.
.TUE NIGHT...NW wind 20 kt. Seas in ice free waters 6 ft.
.WED...N wind 15 kt. Seas in ice free waters 4 ft.
.WED NIGHT...N wind 20 kt. Seas in ice free waters 5 ft.
.THU...N wind 20 kt. Seas in ice free waters 5 ft.
.FRI THROUGH SAT...N wind 10 kt. Seas in ice free waters 3 ft.

$$

PKZ140-201215-
Cook Inlet North of Kalgin Island-
319 PM AKDT Mon Mar 19 2018

.TONIGHT...SW wind 15 kt. Seas in ice free waters 3 ft.
.TUE...W wind 10 kt. Seas in ice free waters 2 ft.
.TUE NIGHT...NW wind 10 kt. Seas in ice free waters 2 ft.
.WED AND WED NIGHT...N wind 15 kt. Seas in ice free waters 3 ft.
.THU...N wind 15 kt. Seas in ice free waters 3 ft.
.FRI THROUGH SAT...N wind 10 kt. Seas in ice free waters 2 ft.

$$

PKZ141-201215-
Kachemak Bay-
319 PM AKDT Mon Mar 19 2018

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...W wind 25 kt. Seas 8 ft.
.TUE...W wind 25 kt. Seas 8 ft.
.TUE NIGHT...NW wind 20 kt. Seas 2 ft.
.WED...N wind 15 kt. Seas 2 ft.
.WED NIGHT...N wind 20 kt. Seas 2 ft.
.THU...N wind 20 kt. Seas 2 ft.
.FRI THROUGH SAT...NE wind 10 kt. Seas 2 ft.

$$

306 
FZAK51 PAFC 201202
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
402 AM AKDT Tue Mar 20 2018

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.

PKZ197-210100-
402 AM AKDT Tue Mar 20 2018
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A 1009 mb low 45 nm west of Yakutat moves to 200 nm southwest of
Klawock at 1006 mb by Wed morning and then exits the Southeastern
Gulf by Thu morning.

$$

PKZ119-210100-
Cape Suckling to Cape Cleare-
402 AM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...NW wind 40 kt. Seas 14 ft.
.TONIGHT...NW wind 40 kt. Seas 13 ft.
.WED...N wind 35 kt. Seas 12 ft.
.WED NIGHT...N wind 30 kt. Seas 9 ft.
.THU...N wind 25 kt. Seas 7 ft.
.FRI...E wind 15 kt. Seas 4 ft.
.SAT...Variable wind 10 kt. Seas 4 ft.

$$

PKZ120-210100-
Cape Cleare to Gore Point-
402 AM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...NW wind 35 kt. Seas 11 ft.
.TONIGHT...NW wind 40 kt. Seas 11 ft.
.WED...N wind 40 kt diminishing to 30 kt in the afternoon. Seas
10 ft.
.WED NIGHT...N wind 30 kt. Seas 8 ft.
.THU...N wind 20 kt. Seas 6 ft.
.FRI...Variable wind 10 kt. Seas 3 ft.
.SAT...Variable wind 10 kt. Seas 3 ft.

$$

PKZ121-210100-
Resurrection Bay-
402 AM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...N wind 20 kt increasing to 35 kt in the late afternoon.
Gusts to 45 kt near Seward in the afternoon. Seas 4 ft building to 7
ft in the afternoon. 
.TONIGHT...N wind 40 kt with gusts to 50 kt near Seward. Seas 9 ft. 
Freezing spray.
.WED...N wind 40 kt diminishing to 30 kt in the afternoon. Gusts to
50 kt in the morning. Seas 9 ft. Freezing spray.
.WED NIGHT...N wind 30 kt. Seas 6 ft.
.THU...N wind 25 kt. Seas 5 ft.
.FRI THROUGH SAT...N wind 10 kt. Seas 2 ft.

$$

PKZ125-210100-
Prince William Sound-
402 AM AKDT Tue Mar 20 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...NW wind 30 kt. Seas 6 ft.
.TONIGHT...NW wind 30 kt. Seas 6 ft.
.WED...NW wind 30 kt. Seas 6 ft.
.WED NIGHT...N wind 25 kt. Seas 6 ft.
.THU...N wind 20 kt. Seas 3 ft.
.FRI THROUGH SAT...NE wind 10 kt. Seas 2 ft.

$$

PKZ126-210100-
Port Valdez-
402 AM AKDT Tue Mar 20 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...NE wind 15 kt increasing to 25 kt in the afternoon. Gusts to
40 kt near Valdez. Seas 3 ft building to 5 ft in the afternoon.
.TONIGHT...NE wind 30 kt. Gusts to 40 kt near Valdez increasing to 50
kt after midnight. Seas 6 ft.
.WED...NE wind 30 kt. Gusts to 50 kt near Valdez. Seas 6 ft.
.WED NIGHT...NE wind 35 kt. Seas 6 ft.
.THU...NE wind 30 kt. Seas 6 ft.
.FRI...NE wind 15 kt. Seas 3 ft.
.SAT...NE wind 10 kt. Seas 2 ft.

$$

PKZ127-210100-
Valdez Narrows-
402 AM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...N wind 20 kt increasing to 35 kt in the afternoon. Seas 2 ft
building to 4 ft in the afternoon.
.TONIGHT...N wind 40 kt. Seas 4 ft.
.WED...N wind 45 kt. Seas 4 ft.
.WED NIGHT...N wind 40 kt. Seas 4 ft.
.THU...N wind 40 kt. Seas 4 ft.
.FRI...NE wind 25 kt. Seas 3 ft.
.SAT...NE wind 10 kt. Seas 2 ft.

$$

PKZ128-210100-
Valdez Arm-
402 AM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...N wind 25 kt increasing to 35 kt in the afternoon. Seas
7 ft.
.TONIGHT...N wind 40 kt. Seas 8 ft.
.WED...N wind 40 kt. Seas 8 ft.
.WED NIGHT...N wind 40 kt. Seas 8 ft.
.THU...N wind 35 kt. Seas 7 ft.
.FRI...NE wind 20 kt. Seas 4 ft.
.SAT...NE wind 10 kt. Seas 2 ft.

$$

PKZ129-210100-
Passage Canal-
402 AM AKDT Tue Mar 20 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...W wind 25 kt. Gusts to 40 kt near Whittier in the afternoon. Seas
4 ft.
.TONIGHT...W wind 30 kt. Gusts to 45 kt near Whittier. Seas 5 ft. 
Freezing spray.
.WED...W wind 25 kt. Seas 4 ft.
.WED NIGHT...W wind 15 kt. Seas 2 ft.
.THU...W wind 10 kt. Seas 2 ft.
.FRI THROUGH SAT...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ130-210100-
West of Barren Islands including Kamishak Bay-
402 AM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...NW wind 45 kt. Seas 17 ft.
.TONIGHT...NW wind 45 kt. Seas 16 ft. Freezing spray.
.WED...NW wind 40 kt diminishing to 25 kt in the afternoon. Seas
13 ft subsiding to 8 ft in the afternoon. Freezing spray.
.WED NIGHT...NW wind 30 kt. Seas 10 ft.
.THU...N wind 25 kt. Seas 8 ft.
.FRI...N wind 15 kt. Seas 3 ft.
.SAT...Variable wind 10 kt. Seas 3 ft.

$$

PKZ131-210100-
Barren Islands East-
402 AM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...NW wind 45 kt. Seas 14 ft.
.TONIGHT...NW wind 45 kt diminishing to 35 kt after midnight. Seas
14 ft.
.WED...NW wind 35 kt. Seas 11 ft.
.WED NIGHT...N wind 35 kt. Seas 9 ft.
.THU...NW wind 25 kt. Seas 7 ft.
.FRI THROUGH SAT...Variable wind 10 kt. Seas 4 ft.

$$

PKZ132-210100-
Marmot Island to Sitkinak-
402 AM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...NW wind 30 kt increasing to 40 kt in the afternoon. Seas 12
ft.
.TONIGHT...NW wind 40 kt. Seas 13 ft.
.WED...NW wind 35 kt. Seas 10 ft.
.WED NIGHT...N wind 35 kt. Seas 11 ft.
.THU...NW wind 25 kt. Seas 8 ft.
.FRI THROUGH SAT...W wind 20 kt. Seas 7 ft.

$$

PKZ136-210100-
Chiniak Bay-
402 AM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW wind 25 kt increasing to 35 kt in the afternoon. Gusts to
40 kt increasing to 50 kt in the afternoon. Seas 4 ft building to 6 
ft in the afternoon.
.TONIGHT...NW wind 35 kt. Seas 6 ft.
.WED...NW wind 25 kt. Seas 4 ft.
.WED NIGHT...NW wind 25 kt. Seas 4 ft.
.THU...NW wind 20 kt. Seas 3 ft.
.FRI THROUGH SAT...W wind 10 kt. Seas 2 ft.

$$

PKZ137-210100-
Marmot Bay-
402 AM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW wind 25 kt increasing to 35 kt in the afternoon. Gusts to
40 kt increasing to 50 kt in the afternoon. Seas 4 ft building to 7 
ft in the afternoon.
.TONIGHT...NW wind 30 kt. Seas 5 ft.
.WED...NW wind 25 kt. Seas 3 ft.
.WED NIGHT...N wind 25 kt. Seas 4 ft.
.THU...NW wind 20 kt. Seas 4 ft.
.FRI THROUGH SAT...W wind 10 kt. Seas 3 ft.

$$

PKZ138-210100-
Shelikof Strait-
402 AM AKDT Tue Mar 20 2018

...GALE WARNING TODAY...

.TODAY...SW wind 25 kt becoming NW 35 kt in the afternoon. Gusts to 
50 kt out of western bays and passes in the afternoon. Seas 5 ft 
building to 10 ft in the afternoon.
.TONIGHT...NW wind 30 kt. Gusts to 45 kt out of western bays and
passes in the evening. Seas 8 ft.
.WED...NW wind 25 kt. Seas 7 ft.
.WED NIGHT...N wind 25 kt. Seas 6 ft.
.THU...N wind 25 kt. Seas 5 ft.
.FRI THROUGH SAT...Variable wind 10 kt. Seas 3 ft.

$$

PKZ139-210100-
Cook Inlet Kalgin Island to Point Bede-
402 AM AKDT Tue Mar 20 2018

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...W wind 30 kt. Seas in ice free waters 9 ft.
.TONIGHT...NW wind 25 kt diminishing to 15 kt after midnight. Seas
in ice free waters 7 ft subsiding to 4 ft after midnight. Freezing
spray.
.WED...N wind 25 kt. Seas in ice free waters 6 ft. Freezing spray.
.WED NIGHT...N wind 25 kt. Seas in ice free waters 7 ft.
.THU...N wind 20 kt. Seas in ice free waters 6 ft.
.FRI...N wind 15 kt. Seas in ice free waters 3 ft.
.SAT...N wind 10 kt. Seas in ice free waters 2 ft.

$$

PKZ140-210100-
Cook Inlet North of Kalgin Island-
402 AM AKDT Tue Mar 20 2018

.TODAY...W wind 10 kt becoming NW 15 kt in the afternoon. Seas in
ice free waters 2 ft.
.TONIGHT...NW wind 15 kt diminishing to 10 kt after midnight. Seas
in ice free waters 2 ft.
.WED...N wind 20 kt. Seas in ice free waters 4 ft.
.WED NIGHT...N wind 20 kt. Seas in ice free waters 4 ft.
.THU...N wind 15 kt. Seas in ice free waters 3 ft.
.FRI THROUGH SAT...N wind 10 kt. Seas in ice free waters 2 ft.

$$

PKZ141-210100-
Kachemak Bay-
402 AM AKDT Tue Mar 20 2018

...SMALL CRAFT ADVISORY TODAY AND WEDNESDAY...

.TODAY...W wind 25 kt. Seas 8 ft subsiding to 3 ft in the
afternoon.
.TONIGHT...NW wind 20 kt. Seas 3 ft.
.WED...N wind 25 kt. Seas 3 ft. Freezing spray.
.WED NIGHT...N wind 20 kt. Seas 3 ft.
.THU...N wind 20 kt. Seas 3 ft.
.FRI THROUGH SAT...N wind 10 kt. Seas 2 ft.

$$

676 
FZAK51 PAFC 202344
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
344 PM AKDT Tue Mar 20 2018

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.

PKZ197-211245-
344 PM AKDT Tue Mar 20 2018
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A 1005 mb low 60 nm south of Yakutat exits to the southeast Wed 
morning. Northerly flow will continue across the Gulf through Wed
morning.
$$

PKZ119-211245-
Cape Suckling to Cape Cleare-
344 PM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...NW wind 40 kt. Seas 12 ft.
.WED...N wind 35 kt. Seas 11 ft.
.WED NIGHT...N wind 35 kt. Seas 9 ft.
.THU...N wind 30 kt. Seas 6 ft.
.THU NIGHT...N wind 20 kt. Seas 5 ft.
.FRI...E wind 15 kt. Seas 4 ft.
.SAT...Variable wind 10 kt. Seas 4 ft.
.SUN...SE wind 15 kt. Seas 5 ft.

$$

PKZ120-211245-
Cape Cleare to Gore Point-
344 PM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...NW wind 40 kt. Seas 10 ft.
.WED...N wind 40 kt diminishing to 30 kt in the afternoon. Seas
10 ft.
.WED NIGHT...N wind 30 kt. Seas 8 ft.
.THU...N wind 20 kt. Seas 6 ft.
.THU NIGHT...NW wind 15 kt. Seas 4 ft.
.FRI...SE wind 15 kt. Seas 3 ft.
.SAT...Variable wind 10 kt. Seas 3 ft.
.SUN...Variable wind 10 kt. Seas 3 ft.

$$

PKZ121-211245-
Resurrection Bay-
344 PM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...N wind 35 kt. Seas 7 ft. Freezing spray.
.WED...N wind 35 kt. Seas 7 ft. Freezing spray.
.WED NIGHT...N wind 30 kt. Seas 6 ft.
.THU AND THU NIGHT...N wind 25 kt. Seas 5 ft.
.FRI THROUGH SUN...N wind 10 kt. Seas 2 ft.

$$

PKZ125-211245-
Prince William Sound-
344 PM AKDT Tue Mar 20 2018

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 7 ft.
.WED...NW wind 30 kt. Seas 7 ft.
.WED NIGHT...N wind 35 kt. Seas 7 ft subsiding to 4 ft after
midnight.
.THU...N wind 25 kt. Seas 4 ft.
.THU NIGHT...N wind 15 kt. Seas 3 ft.
.FRI THROUGH SUN...NE wind 10 kt. Seas 2 ft.

$$

PKZ126-211245-
Port Valdez-
344 PM AKDT Tue Mar 20 2018

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...NE wind 30 kt. Seas 6 ft.
.WED...NE wind 30 kt. Seas 6 ft.
.WED NIGHT...NE wind 35 kt. Seas 6 ft.
.THU AND THU NIGHT...NE wind 30 kt. Seas 6 ft.
.FRI...NE wind 15 kt. Seas 3 ft.
.SAT...NE wind 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ127-211245-
Valdez Narrows-
344 PM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...N wind 40 kt. Seas 4 ft.
.WED...N wind 45 kt. Seas 4 ft.
.WED NIGHT...N wind 45 kt. Seas 4 ft.
.THU...N wind 40 kt. Seas 4 ft.
.THU NIGHT...N wind 35 kt. Seas 4 ft.
.FRI...NE wind 25 kt. Seas 3 ft.
.SAT THROUGH SUN...NE wind 10 kt. Seas 2 ft.

$$

PKZ128-211245-
Valdez Arm-
344 PM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...N wind 40 kt. Seas 8 ft.
.WED...N wind 40 kt. Seas 8 ft.
.WED NIGHT...N wind 40 kt. Seas 8 ft.
.THU...N wind 35 kt. Seas 7 ft.
.THU NIGHT...N wind 30 kt. Seas 6 ft.
.FRI...NE wind 20 kt. Seas 4 ft.
.SAT THROUGH SUN...NE wind 10 kt. Seas 2 ft.

$$

PKZ129-211245-
Passage Canal-
344 PM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...W wind 35 kt. Seas 4 ft. Freezing spray.
.WED...W wind 35 kt. Seas 5 ft.
.WED NIGHT...W wind 25 kt. Seas 3 ft.
.THU...W wind 25 kt. Seas 3 ft.
.THU NIGHT...W wind 10 kt. Seas 2 ft.
.FRI THROUGH SUN...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ130-211245-
West of Barren Islands including Kamishak Bay-
344 PM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...NW wind 40 kt. Seas 11 ft. Freezing spray.
.WED...NW wind 35 kt. Seas 10 ft. Freezing spray.
.WED NIGHT...NW wind 30 kt. Seas 8 ft. Freezing spray.
.THU...NW wind 30 kt. Seas 8 ft.
.THU NIGHT...NW wind 20 kt. Seas 5 ft.
.FRI THROUGH SAT...Variable wind 10 kt. Seas 3 ft.
.SUN...NE wind 15 kt. Seas 3 ft.

$$

PKZ131-211245-
Barren Islands East-
344 PM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...NW wind 40 kt. Seas 13 ft.
.WED...NW wind 35 kt. Seas 11 ft.
.WED NIGHT...N wind 35 kt. Seas 9 ft.
.THU...NW wind 30 kt. Seas 7 ft.
.THU NIGHT...NW wind 20 kt. Seas 5 ft.
.FRI...W wind 20 kt. Seas 4 ft.
.SAT...Variable wind 10 kt. Seas 4 ft.
.SUN...E wind 15 kt. Seas 4 ft.

$$

PKZ132-211245-
Marmot Island to Sitkinak-
344 PM AKDT Tue Mar 20 2018

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...NW wind 40 kt. Seas 12 ft.
.WED...NW wind 35 kt. Seas 9 ft.
.WED NIGHT...N wind 35 kt. Seas 10 ft.
.THU...N wind 25 kt. Seas 9 ft.
.THU NIGHT...W wind 15 kt. Seas 5 ft.
.FRI THROUGH SAT...W wind 20 kt. Seas 7 ft.
.SUN...SE wind 15 kt. Seas 5 ft.

$$

PKZ136-211245-
Chiniak Bay-
344 PM AKDT Tue Mar 20 2018

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 35 kt. Seas 5 ft.
.WED...N wind 30 kt. Seas 6 ft.
.WED NIGHT...N wind 30 kt. Seas 4 ft.
.THU...NW wind 30 kt. Seas 6 ft.
.THU NIGHT...W wind 15 kt. Seas 2 ft.
.FRI THROUGH SAT...W wind 10 kt. Seas 2 ft.
.SUN...SE wind 10 kt. Seas 3 ft.

$$

PKZ137-211245-
Marmot Bay-
344 PM AKDT Tue Mar 20 2018

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

.TONIGHT...NW wind 30 kt. Seas 4 ft.
.WED...N wind 25 kt. Seas 4 ft.
.WED NIGHT...NW wind 25 kt. Seas 4 ft.
.THU...NW wind 25 kt. Seas 5 ft.
.THU NIGHT...NW wind 15 kt. Seas 2 ft.
.FRI THROUGH SAT...W wind 10 kt. Seas 3 ft.
.SUN...SE wind 10 kt. Seas 3 ft.

$$

PKZ138-211245-
Shelikof Strait-
344 PM AKDT Tue Mar 20 2018

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

.TONIGHT...NW wind 30 kt. Seas 8 ft. Gusts to 45 kt out of western 
bays and passes in the evening.
.WED...NW wind 30 kt. Seas 7 ft.
.WED NIGHT...N wind 30 kt. Seas 6 ft.
.THU...N wind 30 kt. Seas 7 ft.
.THU NIGHT...W wind 15 kt. Seas 3 ft.
.FRI...W wind 20 kt. Seas 4 ft.
.SAT...Variable wind 10 kt. Seas 3 ft.
.SUN...E wind 15 kt. Seas 4 ft.

$$

PKZ139-211245-
Cook Inlet Kalgin Island to Point Bede-
344 PM AKDT Tue Mar 20 2018

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

.TONIGHT...NW wind 25 kt. Seas in ice free waters 6 ft. Freezing
spray.
.WED...NW wind 20 kt becoming N 30 kt in the afternoon. Seas in
ice free waters 5 ft building to 8 ft in the afternoon. Freezing 
spray.
.WED NIGHT...N wind 30 kt. Seas in ice free waters 8 ft. Freezing
spray.
.THU...N wind 25 kt. Seas in ice free waters 7 ft.
.THU NIGHT...N wind 20 kt. Seas in ice free waters 5 ft.
.FRI THROUGH SUN...NE wind 10 kt. Seas in ice free waters 3 ft.

$$

PKZ140-211245-
Cook Inlet North of Kalgin Island-
344 PM AKDT Tue Mar 20 2018

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...NW wind 20 kt. Seas in ice free waters 3 ft.
.WED...N wind 25 kt. Seas in ice free waters 5 ft. Freezing spray.
.WED NIGHT...N wind 30 kt. Seas in ice free waters 8 ft. Freezing
spray.
.THU...NE wind 20 kt. Seas in ice free waters 4 ft.
.THU NIGHT...N wind 10 kt. Seas in ice free waters 3 ft.
.FRI THROUGH SUN...N wind 10 kt. Seas in ice free waters 2 ft.

$$

PKZ141-211245-
Kachemak Bay-
344 PM AKDT Tue Mar 20 2018

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...NW wind 20 kt. Gusts to 35 kt through this evening. Seas 
3 ft.
.WED...N wind 25 kt. Seas 4 ft. Freezing spray.
.WED NIGHT...N wind 25 kt. Seas 4 ft. Freezing spray.
.THU...NE wind 20 kt. Seas 3 ft.
.THU NIGHT...N wind 15 kt. Seas 2 ft.
.FRI THROUGH SUN...NE wind 10 kt. Seas 2 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
451 PM AKDT Sun Mar 18 2018

.ANALYSIS AND UPPER LEVELS...
Strong southwesterly flow aloft is over southern Alaska and most
of the Bering Sea this afternoon. This is the result of a large
upper level low centered just northeast of the Kamchatka
Peninsula, and a positively tilted upper level ridge over the
northeast Pacific nudging into the Gulf of Alaska. There is a
front exiting the area along the Canadian Border, with some
lingering showers over Southcentral Alaska. There is a front
stretching from the eastern Aleutians through Bristol Bay to the
northwestern Alaska Range. An upper level shortwave trough is over
the central Bering Sea and moving toward the east.

&&

.MODEL DISCUSSION...
The numerical models are in good agreement through the short term
portion of the forecast (Tuesday afternoon). There are some
differences in how they handle precipitation amounts and types
(rain vs. snow) with the passage of the front and upper level
trough tonight through Monday, making for a bit of a tricky
forecast. Therefore the forecast confidence is near normal.

&&

.AVIATION...
PANC...Precipitation returns tonight, with the type still not
certain. However, with southeast winds expected, rain is most
likely. MVFR to possibly briefly IFR conditions are expected. The
rain will probably change to snow briefly on Monday morning as
colder air moves in for a period of lower visibilities.
Conditions will improve late in the morning to early afternoon as
colder and drier air moves in.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
A strong upper level trough will sweep down from the Bering
tonight and an embedded shortwave trough with associated vorticity
maximum will promote strong dynamics for an intensifying frontal
system moving across southcentral tonight through tomorrow.
Precipitation will spread across the region overnight as warmer
air is pulled up from the south out ahead of the front. This will
lead to rain and mixed precipitation for most locations with the
exception of the Northern Susitna Valley, where temperatures
should remain cold enough to stay all snow. Colder temps combined
with good southwest flow will lead to total snowfall amounts of
5-8 inches for Talkeetna northward along the Parks Highway making
for difficult travel conditions in the morning. Therefore, a
winter weather advisory has been issued through late tomorrow
morning for that area. Snowfall looks to be heaviest between 3 and
9 am tomorrow morning before a vigorous cold front passes
through. This should help to change precipitation over to all snow
for the Matanuska Valley south through the Anchorage Bowl
tomorrow morning, with 2-4" possible in the Mat Valley and less
than 1" in the Anchorage Bowl. Higher amounts are possible along
the Anchorage Hillside and Chugach Front Range.

Starting late Monday morning most areas should see an abrupt
change in the weather as strong cold air advection begins to
spread in behind the departing Gulf low. This not only will allow
for any snow that does develop in Southcentral to end quickly as
drier air moves into the area, but more importantly for the
development of gusty gap winds throughout the Gulf Coast. There
remains good confidence that this low will bring widespread gale
force winds to much of the Gulf and North Gulf Coast beginning
late Monday. This will also bring strong outflow winds to the
Seward, Whittier, and Valdez areas that will persist into Tuesday.
Maximum wind gusts should stay below warning levels due to the
lack of antecedent cold air in the Copper River Valley, but may
still gust up to 60-70 mph for places like Thompson Pass Tuesday
afternoon and Wednesday.

&&

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

As the trough currently moving through Southwest progresses
eastward today, rain and snow will continue to move into the
Kuskokwim Valley. Behind the trough, warm air is bringing
advection fog into Bristol Bay. This fog should end tonight as the
cold front approaching from the west increases instability. Precip
will begin as a mix, or all rain for Bristol Bay, but switch over
to snow as the colder air moves in aloft. Since the precip is
expected to shut off fairly rapidly before the bulk of the cold
air moves in, snow amounts should be minimal. Behind the front,
clearing skies are expected across Southwest tomorrow and tomorrow
night, but gusty northwest winds should keep the fog at bay.

&&

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

Gale force winds continue for the Western Aleutians today on the
southern side of the low near Russia. This low will slide off to
the east on Monday, bringing a temporary respite in winds for the
Aleutians and Bering Sea as high pressure moves in. Fog is
expected near the high center, however the air should be unstable
enough aloft to prevent it from being extensive. Monday, another
low pressure system will move up along the Kamchatka Peninsula,
bringing gale force winds and rain once again to the western
Aleutians beginning Tuesday morning. This pattern is expected to
slide eastward, causing winds to increase over the Bering Sea on
Tuesday.

&&

.LONG TERM FORECAST (Days 3 through 7)...
The long term begins Tuesday night with ridging dominating the
southern mainland with the axis along the west coast. This setup
leads to outflow winds along the north Gulf coast which is
supported by a shortwave moving through the area. Behind the
ridging is a front over the western Bering. Both features will
track east through Saturday when the front finally makes it over
Southcentral Alaska. The pattern will become more active following
the departure of the ridging with a new system moving into the
Bering Saturday. The models are in decent agreement through early
portions of the long term but struggle further out in time leading
to ensembles being preferred later on in the forecast period over
the deterministic solutions.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Winter Weather Advisory 145.
MARINE...Gale 119 120 127 130 131 178 185.

&&

SYNOPSIS AND MODEL DISCUSSION...BL
SOUTHCENTRAL ALASKA...KVP
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...LF
LONG TERM...DK