Alert archive / Alaska / Small Craft Advisories in 2021

Small Craft Advisory 333, NWS Anchorage, AK

April 23, 2021

NWS Anchorage, AK issued this small craft advisory at Apr 23, 2021, 3:19 PM AKDT. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued
Apr 23, 2021, 3:19 PM AKDT (23:19 UTC)
Expired
Apr 24, 2021, 3:28 PM AKDT
In force
24 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

271 
FZAK51 PAFC 232319
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
319 PM AKDT Fri Apr 23 2021

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.

PKZ197-241230-
319 PM AKDT Fri Apr 23 2021
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A front across the Gulf dissipates Sun morning. A new front moves
into the western Gulf by Sun afternoon.

$$

PKZ119-241230-
Cape Suckling to Cape Cleare-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...Variable wind 10 kt. Seas 5 ft.
.SAT...Variable wind 10 kt. Seas 4 ft.
.SAT NIGHT...W wind 10 kt. Seas 4 ft.
.SUN AND SUN NIGHT...W wind 10 kt. Seas 4 ft.
.MON...E wind 15 kt. Seas 5 ft.
.TUE...E wind 20 kt. Seas 6 ft.
.WED...E wind 15 kt. Seas 6 ft.

$$

PKZ120-241230-
Cape Cleare to Gore Point-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...NE wind 10 kt. Seas 5 ft.
.SAT THROUGH SUN NIGHT...Variable wind 10 kt. Seas 4 ft.
.MON THROUGH WED...NE wind 20 kt. Seas 6 ft.

$$

PKZ121-241230-
Resurrection Bay-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...S wind 10 kt in the evening becoming variable 
less than 10 kt. Seas 2 ft.
.SAT...Variable wind less than 10 kt becoming S 10 kt 
in the afternoon. Seas 2 ft.
.SAT NIGHT...S wind 10 kt in the evening becoming variable 
less than 10 kt. Seas 2 ft.
.SUN...S wind 10 kt. Seas 2 ft.
.SUN NIGHT...N wind 10 kt. Seas 2 ft.
.MON THROUGH TUE...Variable wind 10 kt. Seas 2 ft.
.WED...N wind 10 kt. Seas 2 ft.

$$

PKZ125-241230-
Prince William Sound-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SAT...Variable wind less than 10 kt. Seas 2 ft.
.SAT NIGHT...W wind 10 kt. Seas 2 ft.
.SUN AND SUN NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.MON...N wind 10 kt. Seas 2 ft.
.TUE THROUGH WED...NE wind 10 kt. Seas 2 ft.

$$

PKZ126-241230-
Port Valdez-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SAT THROUGH WED...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ127-241230-
Valdez Narrows-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...N wind 10 kt increasing to 15 kt after midnight. Seas
3 ft.
.SAT...N wind 15 kt becoming variable 10 kt in the afternoon. Seas 3
ft.
.SAT NIGHT...variable wind 10 kt becoming N 15 kt after midnight. 
Seas 3 ft.
.SUN...N wind 15 kt. Seas 3 ft.
.SUN NIGHT...N wind 20 kt. Seas 3 ft.
.MON...NE wind 20 kt. Seas 3 ft.
.TUE...NE wind 15 kt. Seas 3 ft.
.WED...NE wind 10 kt. Seas 2 ft.

$$

PKZ128-241230-
Valdez Arm-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...SW wind 10 kt in the evening becoming variable less than 
10 kt. Seas 2 ft.
.SAT...Variable wind less than 10 kt. Seas 2 ft.
.SAT NIGHT...Variable wind 10 kt. Seas 2 ft.
.SUN...Variable wind 10 kt. Seas 2 ft.
.SUN NIGHT...NE wind 10 kt. Seas 2 ft.
.MON THROUGH WED...NE wind 10 kt. Seas 2 ft.

$$

PKZ129-241230-
Passage Canal-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SAT THROUGH WED...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ130-241230-
West of Barren Islands including Kamishak Bay-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...Variable wind 10 kt. Seas 2 ft.
.SAT...E wind 15 kt. Seas 3 ft.
.SAT NIGHT...SE wind 15 kt. Seas 3 ft.
.SUN...E wind 20 kt. Seas 4 ft.
.SUN NIGHT...E wind 15 kt. Seas 3 ft.
.MON THROUGH WED...NE wind 15 kt. Seas 4 ft.

$$

PKZ131-241230-
Barren Islands East-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...NE wind 15 kt. Seas 5 ft.
.SAT...Variable wind 10 kt. Seas 4 ft.
.SAT NIGHT...Variable wind 10 kt. Seas 4 ft.
.SUN AND SUN NIGHT...E wind 15 kt. Seas 5 ft.
.MON...E wind 20 kt. Seas 6 ft.
.TUE...NE wind 25 kt. Seas 7 ft.
.WED...NE wind 20 kt. Seas 7 ft.

$$

PKZ132-241230-
Marmot Island to Sitkinak-
319 PM AKDT Fri Apr 23 2021

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...N wind 15 kt. Seas 6 ft.
.SAT...Variable wind 10 kt. Seas 5 ft.
.SAT NIGHT...SE wind 15 kt increasing to 25 kt after midnight. 
N of Dangerous Cape, variable wind 10 kt. Seas 5 ft.
.SUN...SE wind 25 kt. Seas 7 ft.
.SUN NIGHT...E wind 35 kt. Seas 9 ft.
.MON...E wind 35 kt. Seas 11 ft.
.TUE...NE wind 25 kt. Seas 7 ft.
.WED...NE wind 15 kt. Seas 7 ft.

$$

PKZ136-241230-
Chiniak Bay-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...N wind 15 kt diminishing to 10 kt after midnight. 
Seas 3 ft.
.SAT...Variable wind less than 10 kt. Seas 3 ft.
.SAT NIGHT...SE wind 10 kt. Seas 3 ft.
.SUN...SE wind 10 kt. Seas 3 ft.
.SUN NIGHT...E wind 15 kt. Seas 3 ft.
.MON...NE wind 15 kt. Seas 4 ft.
.TUE...NE wind 20 kt. Seas 6 ft.
.WED...NE wind 10 kt. Seas 3 ft.

$$

PKZ137-241230-
Marmot Bay-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...N wind 10 kt. Seas 3 ft.
.SAT...Variable wind less than 10 kt becoming E 10 kt in the
afternoon. Seas 3 ft.
.SAT NIGHT...E wind 10 kt. Seas 3 ft.
.SUN AND SUN NIGHT...E wind 15 kt. Seas 3 ft.
.MON...E wind 15 kt. Seas 4 ft.
.TUE...NE wind 20 kt. Seas 7 ft.
.WED...NE wind 15 kt. Seas 3 ft.

$$

PKZ138-241230-
Shelikof Strait-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...NE wind 20 kt. Seas 5 ft.
.SAT...NE wind 15 kt. Seas 3 ft.
.SAT NIGHT...E wind 15 kt. Seas 3 ft.
.SUN...E wind 25 kt. Seas 6 ft.
.SUN NIGHT...NE wind 30 kt. Seas 8 ft.
.MON...NE wind 35 kt. Seas 9 ft.
.TUE...NE wind 25 kt. Seas 5 ft.
.WED...NE wind 20 kt. Seas 5 ft.

$$

PKZ139-241230-
Cook Inlet Kalgin Island to Point Bede-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SAT...Variable wind less than 10 kt becoming N 10 kt in the
afternoon. Seas 2 ft.
.SAT NIGHT THROUGH SUN NIGHT...Variable wind less than 10 kt. 
Seas 2 ft.
.MON...NE wind 15 kt. Seas 3 ft.
.TUE THROUGH WED...N wind 10 kt. Seas 4 ft.

$$

PKZ140-241230-
Cook Inlet North of Kalgin Island-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SAT THROUGH SUN NIGHT...Variable wind less than 10 kt. Seas 1 ft.
.MON THROUGH WED...N wind 10 kt. Seas 3 ft.

$$

PKZ141-241230-
Kachemak Bay-
319 PM AKDT Fri Apr 23 2021

.TONIGHT...SW wind 10 kt becoming variable less than 10 kt. 
Seas 2 ft.
.SAT...Variable wind less than 10 kt becoming SW 10 kt in 
the afternoon. Seas 2 ft.
.SAT NIGHT...SW wind 10 kt in the evening becoming variable 
less than 10 kt. Seas 2 ft.
.SUN...NW wind 10 kt. Seas 2 ft.
.SUN NIGHT...SE wind 10 kt. Seas 2 ft.
.MON THROUGH TUE...NE wind 10 kt. Seas 2 ft.
.WED...Variable wind less than 10 kt. Seas 2 ft.

$$
2 follow-up statements
967 
FZAK51 PAFC 241043
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
243 AM AKDT Sat Apr 24 2021

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.

PKZ197-242345-
243 AM AKDT Sat Apr 24 2021
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

High pressure persists over the Gulf through Sun. A weak front will 
enter the southwestern Gulf Sun afternoon.

$$

PKZ119-242345-
Cape Suckling to Cape Cleare-
243 AM AKDT Sat Apr 24 2021

.TODAY...Variable wind 10 kt. Seas 4 ft.
.TONIGHT...Variable wind 10 kt. Seas 4 ft.
.SUN...Variable wind 10 kt. Seas 4 ft.
.SUN NIGHT...Variable wind 10 kt. Seas 4 ft.
.MON...E wind 15 kt. Seas 6 ft.
.TUE...E wind 20 kt. Seas 7 ft.
.WED...E wind 15 kt. Seas 8 ft.

$$

PKZ120-242345-
Cape Cleare to Gore Point-
243 AM AKDT Sat Apr 24 2021

.TODAY...Variable wind 10 kt. Seas 5 ft.
.TONIGHT...Variable wind 10 kt. Seas 4 ft.
.SUN...Variable wind 10 kt. Seas 4 ft.
.SUN NIGHT...Variable wind 10 kt. Seas 4 ft.
.MON...E wind 15 kt. Seas 6 ft.
.TUE THROUGH WED...NE wind 20 kt. Seas 7 ft.

$$

PKZ121-242345-
Resurrection Bay-
243 AM AKDT Sat Apr 24 2021

.TODAY...Variable wind less than 10 kt becoming S 10 kt in the
afternoon. Seas 2 ft.
.TONIGHT...S wind 10 kt in the evening becoming variable less than 
10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt becoming S 10 kt in the
afternoon. Seas 2 ft.
.SUN NIGHT...N wind 10 kt. Seas 2 ft.
.MON THROUGH WED...Variable wind 10 kt. Seas 2 ft.

$$

PKZ125-242345-
Prince William Sound-
243 AM AKDT Sat Apr 24 2021

.TODAY...Variable wind less than 10 kt. Seas 2 ft.
.TONIGHT...W wind 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt. Seas 2 ft.
.SUN NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.MON...N wind 10 kt. Seas 2 ft.
.TUE THROUGH WED...NE wind 10 kt. Seas 2 ft.

$$

PKZ126-242345-
Port Valdez-
243 AM AKDT Sat Apr 24 2021

.TODAY...Variable wind less than 10 kt. Seas 2 ft.
.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt. Seas 2 ft.
.SUN NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.MON THROUGH TUE...Variable wind less than 10 kt. Seas 2 ft.
.WED...W wind 10 kt. Seas 2 ft.

$$

PKZ127-242345-
Valdez Narrows-
243 AM AKDT Sat Apr 24 2021

.TODAY...N wind 15 kt becoming Variable wind 10 kt in the
afternoon. Seas 3 ft.
.TONIGHT...Variable wind 10 kt becoming N 15 kt after midnight.
Seas 3 ft.
.SUN...N wind 15 kt becoming Variable wind 10 kt in the afternoon.
Seas 3 ft.
.SUN NIGHT...N wind 20 kt. Seas 3 ft.
.MON...NE wind 20 kt. Seas 3 ft.
.TUE THROUGH WED...N wind 15 kt. Seas 3 ft.

$$

PKZ128-242345-
Valdez Arm-
243 AM AKDT Sat Apr 24 2021

.TODAY...Variable wind less than 10 kt. Seas 2 ft.
.TONIGHT...Variable wind 10 kt. Seas 2 ft.
.SUN...NE wind 10 kt becoming SW in the afternoon. Seas 2 ft.
.SUN NIGHT...NE wind 10 kt. Seas 2 ft.
.MON THROUGH WED...N wind 10 kt. Seas 2 ft.

$$

PKZ129-242345-
Passage Canal-
243 AM AKDT Sat Apr 24 2021

.TODAY...Variable wind less than 10 kt. Seas 2 ft.
.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt. Seas 2 ft.
.SUN NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.MON THROUGH WED...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ130-242345-
West of Barren Islands including Kamishak Bay-
243 AM AKDT Sat Apr 24 2021

.TODAY...E wind 15 kt. Seas 3 ft.
.TONIGHT...E wind 20 kt. Seas 4 ft.
.SUN...E wind 20 kt. Seas 5 ft.
.SUN NIGHT...E wind 15 kt. Seas 3 ft.
.MON...NE wind 15 kt. Seas 3 ft.
.TUE...E wind 20 kt. Seas 4 ft.
.WED...NE wind 15 kt. Seas 3 ft.

$$

PKZ131-242345-
Barren Islands East-
243 AM AKDT Sat Apr 24 2021

.TODAY...Variable wind 10 kt. Seas 5 ft.
.TONIGHT...SE wind 15 kt. Seas 4 ft.
.SUN...SE wind 15 kt. Seas 4 ft.
.SUN NIGHT...E wind 15 kt. Seas 5 ft.
.MON...E wind 20 kt. Seas 8 ft.
.TUE...E wind 25 kt. Seas 8 ft.
.WED...NE wind 20 kt. Seas 8 ft.

$$

PKZ132-242345-
Marmot Island to Sitkinak-
243 AM AKDT Sat Apr 24 2021

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

.TODAY...Variable wind 10 kt. Seas 5 ft.
.TONIGHT...SE wind 15 kt...except SE 25 kt S of Dangerous Cape. Seas
5 ft...except building to 8 ft after midnight S of Dangerous Cape.
.SUN...SE wind 15 kt...except SE 25 kt S of Dangerous Cape. Seas
5 ft...except 8 ft S of Dangerous Cape.
.SUN NIGHT...E wind 30 kt. Seas 9 ft.
.MON...E wind 30 kt. Seas 12 ft.
.TUE THROUGH WED...NE wind 20 kt. Seas 8 ft.

$$

PKZ136-242345-
Chiniak Bay-
243 AM AKDT Sat Apr 24 2021

.TODAY...Variable wind less than 10 kt becoming E 10 kt in the
afternoon. Seas 3 ft. Rain.
.TONIGHT...SE wind 10 kt. Seas 3 ft.
.SUN...SE wind 10 kt. Seas 3 ft.
.SUN NIGHT...E wind 10 kt. Seas 3 ft.
.MON THROUGH WED...NE wind 15 kt. Seas 4 ft.

$$

PKZ137-242345-
Marmot Bay-
243 AM AKDT Sat Apr 24 2021

.TODAY...Variable wind less than 10 kt becoming E 10 kt in the
afternoon. Seas 3 ft. Rain.
.TONIGHT...E wind 10 kt becoming SE 15 kt after midnight. Seas 4
ft.
.SUN...SE wind 15 kt. Seas 4 ft.
.SUN NIGHT...E wind 15 kt. Seas 4 ft.
.MON...NE wind 15 kt. Seas 4 ft.
.TUE...NE wind 20 kt. Seas 4 ft.
.WED...NE wind 15 kt. Seas 4 ft.

$$

PKZ138-242345-
Shelikof Strait-
243 AM AKDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY SUNDAY...

.TODAY...NE wind 15 kt. Seas 3 ft.
.TONIGHT...NE wind 20 kt. Seas 5 ft.
.SUN...NE wind 25 kt. Seas 7 ft.
.SUN NIGHT...NE wind 30 kt. Seas 11 ft.
.MON...NE wind 30 kt. Seas 11 ft.
.TUE...NE wind 20 kt. Seas 7 ft.
.WED...NE wind 20 kt. Seas 4 ft.

$$

PKZ139-242345-
Cook Inlet Kalgin Island to Point Bede-
243 AM AKDT Sat Apr 24 2021

.TODAY...Variable wind less than 10 kt becoming N 10 kt in the
afternoon. Seas 2 ft.
.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt becoming N 10 kt in the
afternoon. Seas 2 ft.
.SUN NIGHT...N wind 10 kt. Seas 2 ft.
.MON...N wind 15 kt. Seas 3 ft.
.TUE...N wind 10 kt. Seas 3 ft.
.WED...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ140-242345-
Cook Inlet North of Kalgin Island-
243 AM AKDT Sat Apr 24 2021

.TODAY...Variable wind less than 10 kt. Seas 2 ft.
.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt. Seas 2 ft.
.SUN NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.MON THROUGH TUE...NE wind 10 kt. Seas 2 ft.
.WED...NW wind 10 kt. Seas 2 ft.

$$

PKZ141-242345-
Kachemak Bay-
243 AM AKDT Sat Apr 24 2021

.TODAY...Variable wind less than 10 kt becoming W 10 kt in the
afternoon. Seas 2 ft.
.TONIGHT...SW wind 10 kt in the evening becoming variable less
than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt becoming W 10 kt in the
afternoon. Seas 2 ft.
.SUN NIGHT...SE wind 10 kt. Seas 2 ft.
.MON THROUGH TUE...E wind 10 kt. Seas 2 ft.
.WED...Variable wind less than 10 kt. Seas 2 ft.

$$
728 
FZAK51 PAFC 242328
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
328 PM AKDT Sat Apr 24 2021

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.

PKZ197-251215-
328 PM AKDT Sat Apr 24 2021
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A front enters the western Gulf Sun morning and moves over the 
southern Gulf by Mon afternoon.

$$

PKZ119-251215-
Cape Suckling to Cape Cleare-
328 PM AKDT Sat Apr 24 2021

.TONIGHT...Variable wind 10 kt. Seas 4 ft.
.SUN...Variable wind 10 kt. Seas 4 ft.
.SUN NIGHT...W wind 15 kt. Seas 4 ft.
.MON...Variable wind 10 kt. Seas 4 ft.
.MON NIGHT...E wind 20 kt. Seas 6 ft.
.TUE...E wind 20 kt. Seas 7 ft.
.WED THROUGH THU...E wind 15 kt. Seas 7 ft.

$$

PKZ120-251215-
Cape Cleare to Gore Point-
328 PM AKDT Sat Apr 24 2021

.TONIGHT...Variable wind 10 kt. Seas 4 ft.
.SUN...Variable wind 10 kt. Seas 4 ft.
.SUN NIGHT...E wind 15 kt. Seas 4 ft.
.MON...E wind 15 kt. Seas 5 ft.
.MON NIGHT...NE wind 20 kt. Seas 6 ft.
.TUE...NE wind 25 kt. Seas 7 ft.
.WED...NE wind 20 kt. Seas 7 ft.
.THU...NE wind 15 kt. Seas 6 ft.

$$

PKZ121-251215-
Resurrection Bay-
328 PM AKDT Sat Apr 24 2021

.TONIGHT...S wind 10 kt in the evening becoming variable 
less than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt becoming S 10 kt 
in the afternoon. Seas 2 ft.
.SUN NIGHT...Variable wind 10 kt. Seas 2 ft.
.MON...S wind 10 kt. Seas 2 ft.
.MON NIGHT...N wind 10 kt. Seas 2 ft.
.TUE THROUGH WED...Variable wind 10 kt. Seas 2 ft.
.THU...N wind 10 kt. Seas 2 ft.

$$

PKZ125-251215-
Prince William Sound-
328 PM AKDT Sat Apr 24 2021

.TONIGHT...W wind 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt. Seas 2 ft.
.SUN NIGHT...SW wind 10 kt in the evening becoming 
variable less than 10 kt. Seas 2 ft.
.MON...Variable wind less than 10 kt. Seas 2 ft.
.MON NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.TUE THROUGH THU...NE wind 10 kt. Seas 2 ft.

$$

PKZ126-251215-
Port Valdez-
328 PM AKDT Sat Apr 24 2021

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt. Seas 2 ft.
.SUN NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.MON...Variable wind less than 10 kt. Seas 2 ft.
.MON NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.TUE...Variable wind less than 10 kt. Seas 2 ft.
.WED...W wind 10 kt. Seas 2 ft.
.THU...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ127-251215-
Valdez Narrows-
328 PM AKDT Sat Apr 24 2021

.TONIGHT...Variable wind 10 kt becoming N 15 kt after 
midnight. Seas 3 ft.
.SUN...N wind 15 kt becoming SW 10 kt in the afternoon. 
Seas 3 ft.
.SUN NIGHT...Variable wind 10 kt becoming NE 20 kt 
after midnight. Seas 3 ft.
.MON...NW wind 20 kt. Seas 3 ft.
.MON NIGHT...NE wind 15 kt. Seas 3 ft.
.TUE THROUGH THU...NE wind 15 kt. Seas 3 ft.

$$

PKZ128-251215-
Valdez Arm-
328 PM AKDT Sat Apr 24 2021

.TONIGHT...Variable wind 10 kt. Seas 2 ft.
.SUN...NE wind 10 kt becoming SW in the afternoon. 
Seas 2 ft.
.SUN NIGHT...Variable wind 10 kt. Seas 2 ft.
.MON...Variable wind 10 kt. Seas 2 ft.
.MON NIGHT...NE wind 10 kt. Seas 2 ft.
.TUE THROUGH THU...NE wind 10 kt. Seas 2 ft.

$$

PKZ129-251215-
Passage Canal-
328 PM AKDT Sat Apr 24 2021

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN THROUGH THU...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ130-251215-
West of Barren Islands including Kamishak Bay-
328 PM AKDT Sat Apr 24 2021

.TONIGHT...E wind 20 kt. Seas 3 ft.
.SUN AND SUN NIGHT...E wind 20 kt. Seas 5 ft.
.MON...E wind 25 kt. Seas 5 ft.
.MON NIGHT...SE wind 20 kt. Seas 3 ft.
.TUE...SE wind 20 kt. Seas 4 ft.
.WED...NE wind 15 kt. Seas 3 ft.
.THU...NW wind 15 kt. Seas 3 ft.

$$

PKZ131-251215-
Barren Islands East-
328 PM AKDT Sat Apr 24 2021

.TONIGHT...SE wind 15 kt. Seas 4 ft.
.SUN...SE wind 15 kt. Seas 4 ft.
.SUN NIGHT...E wind 20 kt. Seas 5 ft.
.MON AND MON NIGHT...NE wind 25 kt. Seas 8 ft.
.TUE...NE wind 25 kt. Seas 8 ft.
.WED...NE wind 20 kt. Seas 8 ft.
.THU...NE wind 15 kt. Seas 6 ft.

$$

PKZ132-251215-
Marmot Island to Sitkinak-
328 PM AKDT Sat Apr 24 2021

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...SE wind 15 kt...except SE 25 kt S of Dangerous Cape. 
Seas 5 ft...except building to 8 ft after midnight S of Dangerous 
Cape.
.SUN...SE wind 15 kt...except SE 25 kt S of Dangerous Cape. 
Seas 5 ft...except 8 ft S of Dangerous Cape.
.SUN NIGHT...E wind 35 kt. Seas 10 ft. Rain.
.MON...E wind 30 kt. Seas 11 ft.
.MON NIGHT...NE wind 25 kt. Seas 10 ft.
.TUE...NE wind 30 kt. Seas 8 ft.
.WED...NE wind 20 kt. Seas 7 ft.
.THU...N wind 20 kt. Seas 6 ft.

$$

PKZ136-251215-
Chiniak Bay-
328 PM AKDT Sat Apr 24 2021

.TONIGHT...SE wind 10 kt. Seas 3 ft.
.SUN...SE wind 10 kt. Seas 3 ft.
.SUN NIGHT...E wind 10 kt increasing to 15 kt after midnight. 
Seas 4 ft.
.MON AND MON NIGHT...NE wind 20 kt. Seas 5 ft.
.TUE...NE wind 20 kt. Seas 4 ft.
.WED THROUGH THU...N wind 15 kt. Seas 4 ft.

$$

PKZ137-251215-
Marmot Bay-
328 PM AKDT Sat Apr 24 2021

.TONIGHT...E wind 10 kt becoming SE 15 kt after midnight. 
Seas 4 ft.
.SUN...SE wind 15 kt. Seas 4 ft.
.SUN NIGHT...E wind 15 kt. Seas 4 ft.
.MON AND MON NIGHT...NE wind 20 kt. Seas 7 ft.
.TUE...NE wind 20 kt. Seas 4 ft.
.WED...NE wind 15 kt. Seas 4 ft.
.THU...N wind 15 kt. Seas 3 ft.

$$

PKZ138-251215-
Shelikof Strait-
328 PM AKDT Sat Apr 24 2021

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...NE wind 20 kt. Seas 6 ft.
.SUN...NE wind 25 kt. Seas 8 ft.
.SUN NIGHT...NE wind 35 kt. Seas 9 ft.
.MON AND MON NIGHT...NE wind 35 kt. Seas 11 ft.
.TUE...NE wind 25 kt. Seas 8 ft.
.WED...NE wind 20 kt. Seas 5 ft.
.THU...N wind 15 kt. Seas 3 ft.

$$

PKZ139-251215-
Cook Inlet Kalgin Island to Point Bede-
328 PM AKDT Sat Apr 24 2021

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt becoming N 10 kt 
in the afternoon. Seas 2 ft.
.SUN NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.MON...NE wind 15 kt. Seas 3 ft.
.MON NIGHT...NW wind 10 kt. Seas 3 ft.
.TUE...SW wind 10 kt. Seas 2 ft.
.WED...Variable wind less than 10 kt. Seas 2 ft.
.THU...N wind 10 kt. Seas 3 ft.

$$

PKZ140-251215-
Cook Inlet North of Kalgin Island-
328 PM AKDT Sat Apr 24 2021

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN THROUGH MON NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.TUE...SW wind 10 kt. Seas 2 ft.
.WED THROUGH THU...N wind 10 kt. Seas 2 ft.

$$

PKZ141-251215-
Kachemak Bay-
328 PM AKDT Sat Apr 24 2021

.TONIGHT...SW wind 10 kt in the evening becoming variable 
less than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt becoming W 10 kt 
in the afternoon. Seas 2 ft.
.SUN NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.MON...E wind 10 kt. Seas 2 ft.
.MON NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.TUE...S wind 10 kt. Seas 2 ft.
.WED THROUGH THU...Variable wind less than 10 kt. Seas 2 ft.

$$

What forecasters said that day

The local office's own words before this small craft advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Anchorage, AK wrote its last area forecast discussion before this small craft advisory went out at Apr 23, 5:29 AM AKDT, 9 hours 50 minutes earlier.

Area forecast discussion, Apr 23, 5:29 AM AKDT, 9 hours 50 minutes before
Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
529 AM AKDT Fri Apr 23 2021

.ANALYSIS AND UPPER LEVELS...

Blocking pattern persists into the weekend, with a strong high
pressure system set up over the interior and a ridge extending
into the North Pacific. A vertically stacked low out in the Bering
will track a series of shortwaves across the Southwest Coast. This
will instigate the breakdown process of our blocking pattern. The
ridge will begin to weaken and eventually breakdown. This may take
several days as this is a very strong high pressure system that
will not be easily forced out. The low over the Bering, will be
the driving force for weather across the Aleutians, AKPen, and
Southwest Coast into the weekend.

&&

.MODEL DISCUSSION...

Models remain in good overall synoptic agreement for the next few
days. They are handling the upper levels especially well, with
larger model spread in the lower levels. The main feature is the
Bering low as it moves across the Aleutian Chain and into the
Bering. The NAM continues to keep the low center further north
than the other models, but there is less distance between them
than in previous model runs. The models then come into better
agreement as the low becomes relatively stationary for a short
time over Unalaska on Sunday.

&&

.AVIATION...

PANC...VFR conditions and light winds will persist.

&&

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

The big ridge over the interior of the state is pushing back over
Southcentral Alaska today. As it does this, the weakening front
over the northern Gulf and Kenai Peninsula will be pushed back to
the south and bring full sunshine and continued warm temperatures
to Southcentral. As this front moves southward, it will once
again bring rainfall to Kodiak Island today, though the rain
should not be as heavy as the past two days due to the front being
quite a bit weaker.

Weak sea breezes are beginning to show up in the afternoon and
evenings in Kachemak Bay, Resurrection Bay and Valdez. These
afternoon and evening sea breezes will be the typical daily cycle
for the next five months except for occasional days where low
pressure in the northern Gulf is able to override them.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3: Today
through Sunday)...

A wet pattern will persist mainly over AKPEN and portions of
Bristol Bay and Y-K Delta/Coast in the next couple days.
Meanwhile, drier conditions and warmer temperatures will continue
along the Lower Kuskokwim Valley. Satellite and models indicated
increased moisture embedded within a mid-level jet extending from
Shelikof Strait to AKPEN through Y-K Delta/Coast this morning.
This will provide scattered rain over Bristol Bay today and over
AKPEN through Saturday morning. The onset of a frontal boundary
from the eastern Bering will bring another series of rain starting
Saturday afternoon, including gusty winds over AKPEN and coastal
areas through the weekend. All and all, more rain is expected to
pass through much of the coastal area in the coming days.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3: Today
through Sunday)...

A North Pacific low and its associated front will elevate seas and
winds to gale conditions over the Central Aleutians and southern
Bering starting this afternoon. More rainbands will brush across
the Eastern Aleutians and Pribilof Islands as the low crosses the
Aleutians into the southern Bering Saturday afternoon, then
stalls south of Pribilof Island into Sunday night. As a result,
the stacked low over the central Bering will dominate local
conditions through the weekend.

&&

.MARINE (Days 3 through 5)...

Expect winds less than 35 kts and seas less than 20 ft for the
Day 3 through 5 period.

&&

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

The big question for the extended forecast is how long does this
blocking high pressure remain in place. Historically, model
guidance struggles with such features and tends to break them down
too fast once established. Dry and clear conditions can be
expected for southcentral as long as that block stays in place,
likely into early next week. The low pressure system that will be
in place near the Alaska Peninsula will decay in place will keep
some cloudiness and rain over the southwest mainland. Expect above
normal temperatures across Southcentral Alaska to continue along
with seasonally normal dry conditions.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Flood Warning 121 (Anchor River)
MARINE...Gale Warning 170 172 174
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...KM
SOUTHCENTRAL ALASKA...EZ
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...CB
MARINE/LONG TERM...MK/ML

The office that day

Everything else NWS Anchorage, AK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 22, 4:03 PM AKDTSmall Craft AdvisoryAFC23 hr
Apr 23, 3:43 AM AKDTSmall Craft AdvisoryAFC4 days
Apr 23, 3:58 PM AKDTGale WarningAFC23 hr

Nearby

Small Craft Advisories in Alaska, 2021Every small craft advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.