Alert archive / Alaska / Small Craft Advisories in 2017

Small Craft Advisory 547, NWS Anchorage, AK

July 21, 2017

NWS Anchorage, AK issued this small craft advisory at Jul 21, 2017, 3:59 AM AKDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Jul 21, 2017, 3:59 AM AKDT (11:59 UTC)
Expired
Jul 21, 2017, 3:42 PM AKDT
In force
12 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

489 
FZAK51 PAFC 211159
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
359 AM AKDT Fri Jul 21 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.

PKZ197-220045-
359 AM AKDT Fri Jul 21 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A front over the central Gulf dissipates as it drifts into the
eastern Gulf by Sat morning. High pressure builds over much of the
Gulf through Sun morning.

$$

PKZ119-220045-
Cape Suckling to Cape Cleare-
359 AM AKDT Fri Jul 21 2017

.TODAY...E wind 20 kt. Seas 7 ft.
.TONIGHT...NW wind 15 kt. Seas 7 ft.
.SAT...W wind 15 kt. Seas 6 ft.
.SAT NIGHT...SW wind 15 kt. Seas 6 ft.
.SUN THROUGH TUE...Variable wind 10 kt. Seas 4 ft.

$$

PKZ120-220045-
Cape Cleare to Gore Point-
359 AM AKDT Fri Jul 21 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NE wind 20 kt. Seas 8 ft.
.TONIGHT...NE wind 15 kt becoming W after midnight. Seas 7 ft.
.SAT...W wind 15 kt. Seas 6 ft.
.SAT NIGHT...SW wind 15 kt. Seas 5 ft.
.SUN...Variable wind 10 kt. Seas 4 ft.
.MON THROUGH TUE...W wind 15 kt. Seas 5 ft.

$$

PKZ121-220045-
Resurrection Bay-
359 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt becoming S 10 kt in the
afternoon. Seas 2 ft. Higher winds and seas S of Caines Head.
.TONIGHT...Variable wind less than 10 kt becoming N 10 kt after
midnight. Seas 2 ft.
.SAT...N wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.SAT NIGHT...Variable wind 10 kt. Seas 2 ft.
.SUN...S wind 10 kt. Seas 2 ft.
.MON...S wind 15 kt. Seas 3 ft.
.TUE...N wind 15 kt. Seas 2 ft.

$$

PKZ125-220045-
Prince William Sound-
359 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt. Seas 2 ft.
.TONIGHT...Variable wind less than 10 kt becoming W 10 kt after
midnight. Seas 2 ft.
.SAT...W wind 10 kt. Seas 2 ft.
.SAT NIGHT...SE wind 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt. Seas 2 ft.
.MON...S wind 10 kt. Seas 2 ft.
.TUE...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ126-220045-
Port Valdez-
359 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt becoming W 10 kt in the
afternoon. Seas 2 ft.
.TONIGHT...W wind 10 kt becoming NE after midnight. Seas 2 ft.
.SAT...Variable wind less than 10 kt becoming W 10 kt in the
afternoon. Seas 2 ft.
.SAT NIGHT...SW wind 10 kt. Seas 2 ft.
.SUN...SW wind 10 kt. Seas 2 ft.
.MON...Variable wind less than 10 kt. Seas 2 ft.
.TUE...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ127-220045-
Valdez Narrows-
359 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt. Seas 2 ft.
.TONIGHT...Variable wind less than 10 kt becoming NE 10 kt after
midnight. 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. Seas 2 ft.
.SUN...SW wind 10 kt. Seas 2 ft.
.MON...Variable wind 10 kt. Seas 2 ft.
.TUE...SW wind 10 kt. Seas 2 ft.

$$

PKZ128-220045-
Valdez Arm-
359 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt becoming SW 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.
.SAT...Variable wind less than 10 kt. Seas 2 ft.
.SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN THROUGH TUE...SW wind 10 kt. Seas 2 ft.

$$

PKZ129-220045-
Passage Canal-
359 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt. Seas 2 ft.
.TONIGHT...Variable wind less than 10 kt becoming W 15 kt after
midnight. Seas 2 ft.
.SAT...W wind 15 kt diminishing to 10 kt in the afternoon. Seas
2 ft.
.SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt. Seas 2 ft.
.MON...E wind 10 kt. Seas 2 ft.
.TUE...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ130-220045-
West of Barren Islands including Kamishak Bay-
359 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind 10 kt. Seas 3 ft.
.TONIGHT...S wind 15 kt. Seas 3 ft.
.SAT...Variable wind 10 kt. Seas 2 ft.
.SAT NIGHT...Variable wind 10 kt. Seas 3 ft.
.SUN...SW wind 20 kt. Seas 4 ft.
.MON...W wind 15 kt. Seas 4 ft.
.TUE...W wind 20 kt. Seas 5 ft.

$$

PKZ131-220045-
Barren Islands East-
359 AM AKDT Fri Jul 21 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NE wind 25 kt. Seas 9 ft.
.TONIGHT...NE wind 15 kt in the evening becoming variable 10 kt.
Seas 7 ft.
.SAT...W wind 15 kt. Seas 6 ft.
.SAT NIGHT...SW wind 15 kt. Seas 5 ft.
.SUN...S wind 15 kt. Seas 4 ft.
.MON THROUGH TUE...W wind 15 kt. Seas 4 ft.

$$

PKZ132-220045-
Marmot Island to Sitkinak-
359 AM AKDT Fri Jul 21 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NE wind 25 kt. Seas 10 ft.
.TONIGHT...NE wind 20 kt. Seas 8 ft.
.SAT...SW wind 15 kt. Seas 6 ft.
.SAT NIGHT...SW wind 15 kt. Seas 5 ft.
.SUN THROUGH MON...W wind 15 kt. Seas 5 ft.
.TUE...W wind 20 kt. Seas 5 ft.

$$

PKZ136-220045-
Chiniak Bay-
359 AM AKDT Fri Jul 21 2017

.TODAY...NE wind 20 kt. Seas 7 ft subsiding to 4 ft in the
afternoon.
.TONIGHT...N 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 less than 10 kt. Seas 1 ft.
.SUN THROUGH TUE...W wind 10 kt. Seas 2 ft.

$$

PKZ137-220045-
Marmot Bay-
359 AM AKDT Fri Jul 21 2017

.TODAY...NE wind 20 kt. Seas 4 ft.
.TONIGHT...Variable wind less than 10 kt. Seas 3 ft.
.SAT...Variable wind less than 10 kt. Seas 2 ft.
.SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN THROUGH TUE...W wind 10 kt. Seas 3 ft.

$$

PKZ138-220045-
Shelikof Strait-
359 AM AKDT Fri Jul 21 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NE wind 25 kt. Seas 6 ft.
.TONIGHT...Variable wind 10 kt becoming SW 15 kt after midnight.
Seas 3 ft.
.SAT...SW wind 15 kt. Seas 3 ft.
.SAT NIGHT...SW wind 15 kt. Seas 3 ft.
.SUN THROUGH TUE...W wind 15 kt. Seas 4 ft.

$$

PKZ139-220045-
Cook Inlet Kalgin island to Point Bede-
359 AM AKDT Fri Jul 21 2017

.TODAY...S wind 10 kt becoming SW 15 kt in the afternoon. Seas 3
ft.
.TONIGHT...SW wind 20 kt. Seas 5 ft. Patchy fog.
.SAT...Variable wind less than 10 kt. Seas 2 ft. Patchy fog.
.SAT NIGHT...S wind 10 kt. Seas 3 ft.
.SUN...S wind 20 kt. Seas 5 ft.
.MON...SW wind 15 kt. Seas 4 ft.
.TUE...SW wind 10 kt. Seas 3 ft.

$$

PKZ140-220045-
Cook Inlet North of Kalgin Island-
359 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt becoming SW 10 kt in the
afternoon. Seas 1 ft building to 3 ft in the afternoon.
.TONIGHT...SW wind 20 kt. Seas 5 ft. Patchy fog.
.SAT...Variable wind less than 10 kt. Seas 1 ft. Patchy fog.
.SAT NIGHT...S wind 10 kt. Seas 2 ft.
.SUN...S wind 20 kt. Seas 5 ft.
.MON...S wind 15 kt. Seas 4 ft.
.TUE...SW wind 10 kt. Seas 3 ft.

$$

PKZ141-220045-
Kachemak Bay-
359 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt. Seas 2 ft.
.TONIGHT...Variable wind less than 10 kt. Seas 2 ft. Patchy fog.
.SAT...Variable wind less than 10 kt becoming W 10 kt in the
afternoon. Seas 2 ft.
.SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...S wind 15 kt. Seas 4 ft.
.MON...SW wind 10 kt. Seas 2 ft.
.TUE...W wind 10 kt. Seas 2 ft.

$$
2 follow-up statements
991 
FZAK51 PAFC 211758 AAA
CWFAER

Coastal Waters Forecast...UPDATED
National Weather Service Anchorage AK
958 AM AKDT Fri Jul 21 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.

PKZ197-220315-
958 AM AKDT Fri Jul 21 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A front over the central Gulf dissipates as it drifts into the
eastern Gulf by Sat morning. High pressure builds over much of the
Gulf through Sun morning.

$$

PKZ119-220315-
Cape Suckling to Cape Cleare-
958 AM AKDT Fri Jul 21 2017

.TODAY...E wind 20 kt. Seas 7 ft. 
.TONIGHT...NW wind 15 kt. Seas 7 ft. 
.SAT...W wind 15 kt. Seas 6 ft. 
.SAT NIGHT...SW wind 15 kt. Seas 6 ft. 
.SUN THROUGH TUE...Variable wind 10 kt. Seas 4 ft.

$$

PKZ120-220315-
Cape Cleare to Gore Point-
958 AM AKDT Fri Jul 21 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NE wind 20 kt. Seas 8 ft. 
.TONIGHT...NE wind 15 kt becoming W after midnight. Seas 7 ft. 
.SAT...W wind 15 kt. Seas 6 ft. 
.SAT NIGHT...SW wind 15 kt. Seas 5 ft. 
.SUN...Variable wind 10 kt. Seas 4 ft. 
.MON THROUGH TUE...W wind 15 kt. Seas 5 ft.

$$

PKZ121-220315-
Resurrection Bay-
958 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt becoming S 10 kt in the
afternoon. Seas 2 ft. Higher winds and seas S of Caines Head. 
.TONIGHT...Variable wind less than 10 kt becoming N 10 kt after
midnight. Seas 2 ft. 
.SAT...N wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft. 
.SAT NIGHT...Variable wind 10 kt. Seas 2 ft. 
.SUN...S wind 10 kt. Seas 2 ft. 
.MON...S wind 15 kt. Seas 3 ft. 
.TUE...N wind 15 kt. Seas 2 ft.

$$

PKZ125-220315-
Prince William Sound-
958 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt. Seas 2 ft. 
.TONIGHT...Variable wind less than 10 kt becoming W 10 kt after
midnight. Seas 2 ft. 
.SAT...W wind 10 kt. Seas 2 ft. 
.SAT NIGHT...SE wind 10 kt. Seas 2 ft. 
.SUN...Variable wind less than 10 kt. Seas 2 ft. 
.MON...S wind 10 kt. Seas 2 ft. 
.TUE...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ126-220315-
Port Valdez-
958 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt becoming W 10 kt in the
afternoon. Seas 2 ft. 
.TONIGHT...W wind 10 kt becoming NE after midnight. Seas 2 ft. 
.SAT...Variable wind less than 10 kt becoming W 10 kt in the
afternoon. Seas 2 ft. 
.SAT NIGHT...SW wind 10 kt. Seas 2 ft. 
.SUN...SW wind 10 kt. Seas 2 ft. 
.MON...Variable wind less than 10 kt. Seas 2 ft. 
.TUE...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ127-220315-
Valdez Narrows-
958 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt becoming S 15 kt in the
afternoon. Seas 2 ft.
.TONIGHT...S wind 15 kt becoming NE 10 kt after midnight. 
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. Seas 2 ft. 
.SUN...SW wind 10 kt. Seas 2 ft. 
.MON...Variable wind 10 kt. Seas 2 ft. 
.TUE...SW wind 10 kt. Seas 2 ft.

$$

PKZ128-220315-
Valdez Arm-
958 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt becoming SW 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. 
.SAT...Variable wind less than 10 kt. Seas 2 ft. 
.SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft. 
.SUN THROUGH TUE...SW wind 10 kt. Seas 2 ft.

$$

PKZ129-220315-
Passage Canal-
958 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt. Seas 2 ft. 
.TONIGHT...Variable wind less than 10 kt becoming W 15 kt after
midnight. Seas 2 ft. 
.SAT...W wind 15 kt diminishing to 10 kt in the afternoon. Seas
2 ft. 
.SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft. 
.SUN...Variable wind less than 10 kt. Seas 2 ft. 
.MON...E wind 10 kt. Seas 2 ft. 
.TUE...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ130-220315-
West of Barren Islands including Kamishak Bay-
958 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind 10 kt. Seas 3 ft. 
.TONIGHT...S wind 15 kt. Seas 3 ft. 
.SAT...Variable wind 10 kt. Seas 2 ft. 
.SAT NIGHT...Variable wind 10 kt. Seas 3 ft. 
.SUN...SW wind 20 kt. Seas 4 ft. 
.MON...W wind 15 kt. Seas 4 ft. 
.TUE...W wind 20 kt. Seas 5 ft.

$$

PKZ131-220315-
Barren Islands East-
958 AM AKDT Fri Jul 21 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NE wind 25 kt. Seas 9 ft. 
.TONIGHT...NE wind 15 kt in the evening becoming variable 10 kt.
Seas 7 ft. 
.SAT...W wind 15 kt. Seas 6 ft. 
.SAT NIGHT...SW wind 15 kt. Seas 5 ft. 
.SUN...S wind 15 kt. Seas 4 ft. 
.MON THROUGH TUE...W wind 15 kt. Seas 4 ft.

$$

PKZ132-220315-
Marmot Island to Sitkinak-
958 AM AKDT Fri Jul 21 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NE wind 25 kt. Seas 10 ft. 
.TONIGHT...NE wind 20 kt. Seas 8 ft. 
.SAT...SW wind 15 kt. Seas 6 ft. 
.SAT NIGHT...SW wind 15 kt. Seas 5 ft. 
.SUN THROUGH MON...W wind 15 kt. Seas 5 ft. 
.TUE...W wind 20 kt. Seas 5 ft.

$$

PKZ136-220315-
Chiniak Bay-
958 AM AKDT Fri Jul 21 2017

.TODAY...NE wind 20 kt. Seas 7 ft subsiding to 4 ft in the
afternoon. 
.TONIGHT...N 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 less than 10 kt. Seas 1 ft. 
.SUN THROUGH TUE...W wind 10 kt. Seas 2 ft.

$$

PKZ137-220315-
Marmot Bay-
958 AM AKDT Fri Jul 21 2017

.TODAY...NE wind 20 kt. Seas 4 ft. 
.TONIGHT...Variable wind less than 10 kt. Seas 3 ft. 
.SAT...Variable wind less than 10 kt. Seas 2 ft. 
.SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft. 
.SUN THROUGH TUE...W wind 10 kt. Seas 3 ft.

$$

PKZ138-220315-
Shelikof Strait-
958 AM AKDT Fri Jul 21 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NE wind 25 kt. Seas 6 ft. 
.TONIGHT...Variable wind 10 kt becoming SW 15 kt after midnight.
Seas 3 ft. 
.SAT...SW wind 15 kt. Seas 3 ft. 
.SAT NIGHT...SW wind 15 kt. Seas 3 ft. 
.SUN THROUGH TUE...W wind 15 kt. Seas 4 ft.

$$

PKZ139-220315-
Cook Inlet Kalgin island to Point Bede-
958 AM AKDT Fri Jul 21 2017

.TODAY...S wind 10 kt becoming SW 15 kt in the afternoon. Seas
3 ft. 
.TONIGHT...SW wind 20 kt. Seas 5 ft. Patchy fog. 
.SAT...Variable wind less than 10 kt. Seas 2 ft. Patchy fog. 
.SAT NIGHT...S wind 10 kt. Seas 3 ft. 
.SUN...S wind 20 kt. Seas 5 ft. 
.MON...SW wind 15 kt. Seas 4 ft. 
.TUE...SW wind 10 kt. Seas 3 ft.

$$

PKZ140-220315-
Cook Inlet North of Kalgin Island-
958 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt becoming SW 10 kt in the
afternoon. Seas 1 ft building to 3 ft in the afternoon. 
.TONIGHT...SW wind 20 kt. Seas 5 ft. Patchy fog. 
.SAT...Variable wind less than 10 kt. Seas 1 ft. Patchy fog. 
.SAT NIGHT...S wind 10 kt. Seas 2 ft. 
.SUN...S wind 20 kt. Seas 5 ft. 
.MON...S wind 15 kt. Seas 4 ft. 
.TUE...SW wind 10 kt. Seas 3 ft.

$$

PKZ141-220315-
Kachemak Bay-
958 AM AKDT Fri Jul 21 2017

.TODAY...Variable wind less than 10 kt becoming SW 15 kt in the
afternoon. Seas building to 3 ft.
.TONIGHT...SW wind 15 kt becoming Variable wind less than 10 kt 
by midnight. Seas 3 ft subsiding. Patchy fog.
.SAT...Variable wind less than 10 kt becoming W 10 kt in the
afternoon. Seas 2 ft. 
.SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft. 
.SUN...S wind 15 kt. Seas 4 ft. 
.MON...SW wind 10 kt. Seas 2 ft. 
.TUE...W wind 10 kt. Seas 2 ft.

$$
432 
FZAK51 PAFC 212342
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
342 PM AKDT Fri Jul 21 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.

PKZ197-221245-
342 PM AKDT Fri Jul 21 2017
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...
A front over the central Gulf will dissipate by early Sat afternoon
as it drifts into the eastern Gulf. High pressure will then build
across much of the Gulf through Sun morning.

$$

PKZ119-221245-
Cape Suckling to Cape Cleare-
342 PM AKDT Fri Jul 21 2017

.TONIGHT...NW wind 10 kt. Seas 7 ft.
.SAT...W wind 15 kt. Seas 6 ft.
.SAT NIGHT...SW wind 15 kt. Seas 5 ft.
.SUN AND SUN NIGHT...Variable wind 10 kt. Seas 4 ft.
.MON THROUGH WED...Variable wind 10 kt. Seas 4 ft.

$$

PKZ120-221245-
Cape Cleare to Gore Point-
342 PM AKDT Fri Jul 21 2017

.TONIGHT...Variable wind 10 kt becoming W 15 kt after midnight.
Seas 7 ft.
.SAT...W wind 15 kt. Seas 6 ft.
.SAT NIGHT...SW wind 15 kt. Seas 5 ft.
.SUN AND SUN NIGHT...Variable wind 10 kt. Seas 4 ft.
.MON THROUGH WED...W wind 15 kt. Seas 5 ft.

$$

PKZ121-221245-
Resurrection Bay-
342 PM AKDT Fri Jul 21 2017

.TONIGHT...Variable wind less than 10 kt becoming N 15 kt after
midnight. Seas 3 ft.
.SAT...N wind 15 kt in the morning becoming variable less than
10 kt. Seas 3 ft.
.SAT NIGHT...S wind 10 kt in the evening becoming variable less
than 10 kt. Seas 2 ft.
.SUN AND SUN NIGHT...S wind 10 kt. Seas 2 ft.
.MON...S wind 15 kt. Seas 3 ft.
.TUE...N wind 15 kt. Seas 2 ft.
.WED...S wind 10 kt. Seas 2 ft.

$$

PKZ125-221245-
Prince William Sound-
342 PM AKDT Fri Jul 21 2017

.TONIGHT...Variable wind less than 10 kt becoming W 10 kt after
midnight. Seas 2 ft.
.SAT...W wind 10 kt. Seas 2 ft.
.SAT NIGHT...S wind 10 kt. Seas 2 ft.
.SUN AND SUN NIGHT...E wind 10 kt. Seas 2 ft.
.MON...SE wind 10 kt. Seas 2 ft.
.TUE THROUGH WED...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ126-221245-
Port Valdez-
342 PM AKDT Fri Jul 21 2017

.TONIGHT...W wind 10 kt becoming NE after midnight. Seas 2 ft.
.SAT...NE wind 10 kt becoming W 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 AND SUN NIGHT...SW wind 15 kt. Seas 3 ft.
.MON...SW wind 10 kt. Seas 2 ft.
.TUE...Variable wind less than 10 kt. Seas 2 ft.
.WED...SW wind 10 kt. Seas 2 ft.

$$

PKZ127-221245-
Valdez Narrows-
342 PM AKDT Fri Jul 21 2017

.TONIGHT...SW wind 15 kt becoming NE 10 kt after midnight. Seas
3 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 AND SUN NIGHT...SW wind 15 kt. Seas 3 ft.
.MON...SW wind 10 kt. Seas 2 ft.
.TUE THROUGH WED...SW wind 10 kt. Seas 2 ft.

$$

PKZ128-221245-
Valdez Arm-
342 PM AKDT Fri Jul 21 2017

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

$$

PKZ129-221245-
Passage Canal-
342 PM AKDT Fri Jul 21 2017

.TONIGHT...Variable wind less than 10 kt becoming W 15 kt after
midnight. Gusts to 25 kts after midnight. Seas 2 ft.
.SAT...W wind 15 kt diminishing to 10 kt in the afternoon. Gusts to
25 kts in the early morning. Seas 2 ft.
.SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN AND SUN NIGHT...E wind 10 kt. Seas 2 ft.
.MON...E wind 10 kt. Seas 2 ft.
.TUE THROUGH WED...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ130-221245-
West of Barren Islands including Kamishak Bay-
342 PM AKDT Fri Jul 21 2017

.TONIGHT...S wind 15 kt. Seas 3 ft.
.SAT...Variable wind 10 kt. Seas 3 ft.
.SAT NIGHT...Variable wind 10 kt. Seas 3 ft.
.SUN AND SUN NIGHT...SW wind 20 kt. Seas 6 ft.
.MON THROUGH WED...W wind 20 kt. Seas 5 ft.

$$

PKZ131-221245-
Barren Islands East-
342 PM AKDT Fri Jul 21 2017

.TONIGHT...NE wind 15 kt in the evening becoming variable 10 kt.
Seas 7 ft.
.SAT...W wind 15 kt. Seas 6 ft.
.SAT NIGHT...SW wind 15 kt. Seas 6 ft.
.SUN AND SUN NIGHT...S wind 15 kt. Seas 4 ft.
.MON THROUGH WED...W wind 15 kt. Seas 4 ft.

$$

PKZ132-221245-
Marmot Island to Sitkinak-
342 PM AKDT Fri Jul 21 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NE wind 25 kt becoming N 15 kt after midnight. Seas 8
ft.
.SAT...SW wind 15 kt. Seas 6 ft.
.SAT NIGHT...SW wind 15 kt. Seas 6 ft.
.SUN...SW wind 15 kt. Seas 4 ft.
.SUN NIGHT...SW wind 20 kt. Seas 4 ft.
.MON THROUGH WED...W wind 20 kt. Seas 5 ft.

$$

PKZ136-221245-
Chiniak Bay-
342 PM AKDT Fri Jul 21 2017

.TONIGHT...N wind 10 kt in the evening becoming variable less than
10 kt. Seas 3 ft.
.SAT...Variable wind less than 10 kt. Seas 2 ft.
.SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...S wind 10 kt. Seas 1 ft.
.SUN NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.MON THROUGH WED...W wind 10 kt. Seas 2 ft.

$$

PKZ137-221245-
Marmot Bay-
342 PM AKDT Fri Jul 21 2017

.TONIGHT...Variable wind less than 10 kt becoming SW 10 kt after
midnight. Seas 3 ft.
.SAT...SW wind 10 kt. Seas 2 ft.
.SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt. Seas 3 ft.
.SUN NIGHT...W wind 10 kt. Seas 2 ft.
.MON THROUGH WED...W wind 10 kt. Seas 2 ft.

$$

PKZ138-221245-
Shelikof Strait-
342 PM AKDT Fri Jul 21 2017

.TONIGHT...Variable wind 10 kt becoming SW 15 kt after midnight.
Seas 3 ft.
.SAT...SW wind 15 kt. Seas 3 ft.
.SAT NIGHT...SW wind 15 kt. Seas 3 ft.
.SUN...SW wind 15 kt. Seas 4 ft.
.SUN NIGHT...SW wind 20 kt. Seas 5 ft.
.MON...SW wind 20 kt. Seas 5 ft.
.TUE THROUGH WED...W wind 15 kt. Seas 4 ft.

$$

PKZ139-221245-
Cook Inlet Kalgin island to Point Bede-
342 PM AKDT Fri Jul 21 2017

.TONIGHT...S wind increasing to 20 kt during the evening. Seas 5 ft.
.SAT...Variable wind less than 10 kt. Seas 2 ft.
.SAT NIGHT...SW wind 10 kt. Seas 3 ft.
.SUN AND SUN NIGHT...S wind 25 kt. Seas 8 ft.
.MON...SW wind 20 kt. Seas 6 ft.
.TUE THROUGH WED...W wind 10 kt. Seas 3 ft.

$$

PKZ140-221245-
Cook Inlet North of Kalgin Island-
342 PM AKDT Fri Jul 21 2017

.TONIGHT...SW wind increasing to 20 kt during the evening. Seas 5 
ft.
.SAT...Variable wind less than 10 kt. Seas 2 ft.
.SAT NIGHT...SW wind 10 kt. Seas 3 ft.
.SUN AND SUN NIGHT...S wind 25 kt. Seas 7 ft.
.MON...S wind 20 kt. Seas 6 ft.
.TUE THROUGH WED...SW wind 10 kt. Seas 3 ft.

$$

PKZ141-221245-
Kachemak Bay-
342 PM AKDT Fri Jul 21 2017

.TONIGHT...SW wind 10 kt in the evening becoming variable less
than 10 kt. Seas 2 ft.
.SAT...Variable wind less than 10 kt becoming W 10 kt in the
afternoon. Seas 2 ft.
.SAT NIGHT...Variable wind less than 10 kt becoming E 10 kt after
midnight. Seas 2 ft.
.SUN AND SUN NIGHT...S wind 15 kt. Seas 4 ft.
.MON...SW wind 15 kt. Seas 4 ft.
.TUE THROUGH WED...W wind 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 Jul 20, 5:00 PM AKDT, 10 hours 59 minutes earlier.

Area forecast discussion, Jul 20, 5:00 PM AKDT, 10 hours 59 minutes before
Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
500 PM AKDT Thu Jul 20 2017

.ANALYSIS AND UPPER LEVELS...
There is an upper level low in the southwest Gulf of Alaska that
is moving towards the southeast. An associated surface low is
southeast of Kodiak Island. The front is stretched east-to-west
across the northern Gulf into Kodiak Island. An upper level high
is over most of the Bering sea, and building into southern Alaska
from the west. Only a few showers remain over the mainland of
southern Alaska this ridge builds in. There is an upper level low
over the central Aleutians that is moving rapidly southeast.

&&

.MODEL DISCUSSION...
The numerical models are in good agreement today. The GFS and NAM
were mostly used for the afternoon forecast package. Forecast
confidence is higher than normal.

&&

.AVIATION...
PANC...VFR conditions will persist. Some breezy southeast winds
are possible this evening, otherwise winds will be light.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
Conditions will continue to improve across much of Southcentral
Alaska this evening, as the front over the northern Gulf weakens
and retreats southward over the central Gulf by Friday morning.
Residual cloud cover will linger over much of the area through
the overnight hours tonight, before an upper level ridge builds
into the region and supports gradually clearing skies and warming
temperatures Friday. Some diurnal showers could form Friday
afternoon/evening along the Alaska Range and Talkeetna Mountains,
but generally rainfall will be limited. By Saturday however,
mostly clear and warmer conditions could aide in the development
of some isolated thunderstorms in the afternoon/evening along the
northeast Alaska Range and Talkeetna mountains.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
With the ridge continuing its march inland, upper level heights
will build and expect a distinct warming trend. Residual mid level
moisture will fuel afternoon/evening convection over the Western
Alaska Range and Lower Kuskokwim River. Along the coast,
inversions will hold up. Patchy fog is expected to materialize at
Nunivak Island and push eastward.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
The synoptic pattern features a high amplitude ridge over the
Bering Sea and a low over Adak. As time elapses, the low will
rapidly push southeast. The high will be the dominate feature this
forecast period. Stable conditions anticipated as the warm air
moves over the cold water. Expect mild dry conditions with areas
of marine stratus and fog.

&&

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

At the start of next week the synoptic set up for the southern
mainland will be under the influence of troughs moving inland from
the Bering Strait. Models are honing in on a similar solution for
Monday and Tuesday, bringing a significant fast paced shortwave
across the Southwest coast early Monday. Southwesterly flow at
the lower levels will keep a moist profile near the surface. This
moisture combined with ample diurnal heating will prime the
environment for showers to readily develop along wave.
Thunderstorms are also a possibility, however the timing of the
wave is still uncertain so will leave mention out of the forecast
until there is better model run consistency. This first wave
traverses across all of Southcentral by early Tuesday. This first
system paves the way for the next wave which arrives along the
southwest coast early Tuesday. This wave progresses just as quick
across the region, although it looks like it dives more to the
south.

To the west across the Bering and Aleutians, the ridge pattern
over the western water amplifies into the middle of next week
keeping a drier pattern across the western Bering/Aleutians with
areas of fog developing under a stable air mass. The eastern and
central Bering will see a mix of weather as this area stays under
the influence of both the upper low and ridge.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...GALE 138.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...BL
SOUTHCENTRAL ALASKA...TP
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...PS
LONG TERM...KH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 3:52 AM AKDTSmall Craft AdvisoryAFC3 days
Jul 21, 3:39 PM AKDTSmall Craft AdvisoryAFC60 hr

Nearby

Small Craft Advisories in Alaska, 2017Every small craft advisory in 2017

Sources

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