Alert archive / Alaska / Small Craft Advisories in 2021
Small Craft Advisory 1009, NWS Anchorage, AK
NWS Anchorage, AK issued this small craft advisory at Dec 17, 2021, 3:48 AM AKST. It was in force for 59 hr.
The area
The counties it named.
The facts
- Issued
- Dec 17, 2021, 3:48 AM AKST (12:48 UTC)
- Expired
- Dec 19, 2021, 3:16 PM AKST
- In force
- 59 hr
- Issued by
- NWS Anchorage, AK
The text
As transmitted.
177 FZAK51 PAFC 171248 CWFAER Coastal Waters Forecast National Weather Service Anchorage Alaska 348 AM AKST Fri Dec 17 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. PKZ197-180215- 348 AM AKST Fri Dec 17 2021 .SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+ COOK INLET... A 1006 mb low 60 nm south of Middleton Island moves toward the Southeast Panhandle through Fri afternoon. A 1012 mb low develops 60 nm south of Seward Sat morning and moves into the northeast Gulf Sat afternoon. $$ PKZ119-180215- Cape Suckling to Cape Cleare- 348 AM AKST Fri Dec 17 2021 .TODAY...N wind 20 kt. Seas 6 ft. .TONIGHT...NW wind 15 kt. Seas 7 ft. .SAT...W wind 20 kt. Seas 7 ft. .SAT NIGHT...NW wind 20 kt. Seas 8 ft. .SUN...N wind 20 kt. Seas 8 ft. .MON...NW wind 20 kt. Seas 5 ft. .TUE...NW wind 30 kt. Seas 11 ft. $$ PKZ120-180215- Cape Cleare to Gore Point- 348 AM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY SATURDAY... .TODAY...NW wind 15 kt. Seas 6 ft. .TONIGHT...W wind 15 kt. Seas 5 ft. .SAT...W wind 15 kt increasing to 25 kt in the afternoon. Seas 9 ft. .SAT NIGHT...NW wind 25 kt. Seas 9 ft. .SUN...NW wind 20 kt. Seas 7 ft. .MON...W wind 25 kt. Seas 5 ft. .TUE...NW wind 30 kt. Seas 11 ft. $$ PKZ121-180215- Resurrection Bay- 348 AM AKST Fri Dec 17 2021 .TODAY...N wind 10 kt early increasing to 20 kt. Seas 4 ft. Freezing spray. .TONIGHT...N wind 10 kt in the evening becoming variable less than 10 kt. Seas 2 ft. .SAT...Variable wind less than 10 kt becoming N 20 kt in the afternoon. Seas 2 ft building to 4 ft in the afternoon. .SAT NIGHT...N wind 20 kt. Seas 4 ft. .SUN...N wind 20 kt. Seas 4 ft. .MON...N wind 15 kt. Seas 3 ft. .TUE...N wind 20 kt. Seas 4 ft. $$ PKZ125-180215- Prince William Sound- 348 AM AKST Fri Dec 17 2021 .TODAY...N wind 20 kt. Seas 3 ft. .TONIGHT...NW wind 10 kt becoming E after midnight. Seas 2 ft. .SAT...Variable wind less than 10 kt becoming NW 20 kt in the afternoon. Seas 3 ft. .SAT NIGHT...NW wind 25 kt. Seas 4 ft. .SUN...N wind 15 kt. Seas 3 ft. .MON...NE wind 10 kt. Seas 2 ft. .TUE...N wind 20 kt. Seas 4 ft. $$ PKZ126-180215- Port Valdez- 348 AM AKST Fri Dec 17 2021 .TODAY...NE wind 15 kt. Seas 3 ft. Freezing spray. .TONIGHT...NE wind 15 kt. Seas 3 ft. Freezing spray. .SAT...NE wind 10 kt increasing to 15 kt in the afternoon. Seas 3 ft. Freezing spray. .SAT NIGHT...NE wind 20 kt. Seas 4 ft. .SUN...N wind 20 kt. Seas 4 ft. .MON...Variable wind 10 kt. Seas 2 ft. .TUE...N wind 20 kt. Seas 4 ft. $$ PKZ127-180215- Valdez Narrows- 348 AM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY THROUGH SATURDAY... .TODAY...NE wind 25 kt. Seas 3 ft. Freezing spray. .TONIGHT...NE wind 25 kt. Seas 3 ft. Freezing spray. .SAT...N wind 30 kt. Seas 3 ft. Freezing spray. .SAT NIGHT...N wind 30 kt. Seas 3 ft. .SUN...N wind 25 kt. Seas 3 ft. .MON...N wind 15 kt. Seas 3 ft. .TUE...N wind 25 kt. Seas 3 ft. $$ PKZ128-180215- Valdez Arm- 348 AM AKST Fri Dec 17 2021 .TODAY...NE wind 20 kt. Seas 4 ft. Freezing spray. .TONIGHT...NE wind 20 kt. Seas 4 ft. .SAT...NE wind 20 kt. Seas 4 ft. .SAT NIGHT...NE wind 25 kt. Seas 5 ft. .SUN...N wind 20 kt. Seas 4 ft. .MON...N wind 10 kt. Seas 2 ft. .TUE...N wind 20 kt. Seas 4 ft. $$ PKZ129-180215- Passage Canal- 348 AM AKST Fri Dec 17 2021 .TODAY...W wind 10 kt early increasing to 20 kt. Gusts to 35 kt near Whittier. Seas 3 ft. Freezing spray. .TONIGHT...W wind 15 kt in the evening becoming variable less than 10 kt. Gusts to 25 kt near Whittier in the evening. Seas 2 ft. .SAT...Variable wind less than 10 kt becoming W 10 kt in the afternoon. Seas 2 ft. .SAT NIGHT...W wind 20 kt. Seas 3 ft. .SUN...W wind 20 kt. Seas 3 ft. .MON...Variable wind less than 10 kt. Seas 2 ft. .TUE...W wind 25 kt. Seas 4 ft. $$ PKZ130-180215- West of Barren Islands including Kamishak Bay- 348 AM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY TONIGHT AND SATURDAY... .TODAY...NW wind 20 kt becoming SE 15 kt in the afternoon. Seas 7 ft. .TONIGHT...SE wind 25 kt becoming NW after midnight. Seas 5 ft. Snow and rain. .SAT...W wind 15 kt increasing to 25 kt in the afternoon. Seas 5 ft building to 10 ft in the afternoon. .SAT NIGHT...W wind 30 kt. Seas 9 ft. .SUN...W wind 15 kt. Seas 5 ft. .MON...W wind 30 kt. Seas 7 ft. .TUE...NW wind 35 kt. Seas 10 ft. $$ PKZ131-180215- Barren Islands East- 348 AM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY TODAY AND SATURDAY... .TODAY...NW wind 25 kt. Seas 8 ft. .TONIGHT...SW wind 20 kt. Seas 7 ft. .SAT...W wind 20 kt increasing to 30 kt in the afternoon. Seas 10 ft. .SAT NIGHT...W wind 35 kt. Seas 14 ft. .SUN...W wind 25 kt. Seas 11 ft. .MON...W wind 30 kt. Seas 8 ft. .TUE...NW wind 40 kt. Seas 15 ft. $$ PKZ132-180215- Marmot Island to Sitkinak- 348 AM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY THROUGH SATURDAY... .TODAY...NW wind 20 kt. Seas 8 ft. .TONIGHT...SW wind 20 kt. Seas 9 ft. .SAT...W wind 30 kt. Seas 13 ft. .SAT NIGHT...W wind 30 kt. Seas 13 ft. .SUN THROUGH MON...W wind 25 kt. Seas 10 ft. .TUE...NW wind 35 kt. Seas 13 ft. $$ PKZ136-180215- Chiniak Bay- 348 AM AKST Fri Dec 17 2021 .TODAY...W wind 10 kt in the morning becoming variable less than 10 kt. Seas 2 ft. .TONIGHT...SW wind 15 kt. Seas 3 ft. .SAT...W wind 20 kt. Seas 3 ft. .SAT NIGHT...W wind 20 kt. Seas 3 ft. .SUN...W wind 10 kt. Seas 2 ft. .MON...SW wind 15 kt. Seas 2 ft. .TUE...NW wind 25 kt. Seas 4 ft. $$ PKZ137-180215- Marmot Bay- 348 AM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY SATURDAY... .TODAY...W wind 15 kt. Seas 2 ft. .TONIGHT...S wind 10 kt. Seas 3 ft. .SAT...W wind 25 kt. Seas 6 ft. .SAT NIGHT...W wind 20 kt. Seas 4 ft. .SUN...W wind 15 kt. Seas 3 ft. .MON...SW wind 20 kt. Seas 3 ft. .TUE...NW wind 30 kt. Seas 4 ft. $$ PKZ138-180215- Shelikof Strait- 348 AM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY TONIGHT AND SATURDAY... .TODAY...W wind 20 kt. Seas 5 ft. .TONIGHT...S wind 25 kt. Seas 6 ft. .SAT...W wind 30 kt. Seas 7 ft. .SAT NIGHT...W wind 25 kt. Seas 5 ft. .SUN...W wind 25 kt. Seas 3 ft. .MON...SW wind 20 kt. Seas 5 ft. .TUE...W wind 25 kt. Seas 6 ft. $$ PKZ139-180215- Cook Inlet Kalgin Island to Point Bede- 348 AM AKST Fri Dec 17 2021 .TODAY...N wind 10 kt in the morning becoming variable less than 10 kt. Seas 2 ft. .TONIGHT...NE wind 20 kt. Seas 3 ft. Freezing spray. Snow. .SAT...N wind 10 kt becoming W 15 kt in the afternoon. Seas 3 ft. .SAT NIGHT...NE wind 10 kt. Seas 3 ft. .SUN...N wind 10 kt. Seas 3 ft. .MON...N wind 15 kt. Seas 3 ft. .TUE...NW wind 20 kt. Seas 5 ft. $$ PKZ140-180215- Cook Inlet North of Kalgin Island- 348 AM AKST Fri Dec 17 2021 .TODAY...Variable wind less than 10 kt. .TONIGHT...NE wind 10 kt. Snow. .SAT...NW wind 10 kt in the morning becoming variable less than 10 kt. .SAT NIGHT...NE wind 10 kt. .SUN THROUGH MON...N wind 10 kt. .TUE...NW wind 10 kt. $$ PKZ141-180215- Kachemak Bay- 348 AM AKST Fri Dec 17 2021 .TODAY...Variable wind less than 10 kt. Seas 2 ft. .TONIGHT...E wind 10 kt becoming SE 20 kt after midnight. Seas 2 ft building to 4 ft after midnight. Snow. .SAT...W wind 15 kt becoming SE 10 kt in the afternoon. Seas 4 ft subsiding to 2 ft in the afternoon. Snow. .SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft. .SUN...W wind 10 kt. Seas 2 ft. .MON...W wind 15 kt. Seas 4 ft. .TUE...NW wind 20 kt. Seas 4 ft. $$
5 follow-up statements
166 FZAK51 PAFC 180034 CWFAER Coastal Waters Forecast National Weather Service Anchorage Alaska 334 PM AKST Fri Dec 17 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. PKZ197-181330- 334 PM AKST Fri Dec 17 2021 .SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+ COOK INLET... A 1013 mb low develops 50 nm south of Seward Sat morning and weakens as it moves into the northeast Gulf Sat night. High pressure builds across the Gulf on Sunday. $$ PKZ119-181330- Cape Suckling to Cape Cleare- 334 PM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY SATURDAY NIGHT... .TONIGHT...NW wind 15 kt. Seas 7 ft. .SAT...W wind 20 kt. Seas 7 ft. .SAT NIGHT...NW wind 20 kt. Gusts to 40 kt out of the Copper River Delta. Seas 8 ft. .SUN...N wind 20 kt. Seas 8 ft. .SUN NIGHT...S wind 15 kt. Seas 6 ft. .MON...W wind 20 kt. Seas 5 ft. .TUE THROUGH WED...N wind 30 kt. Seas 11 ft. $$ PKZ120-181330- Cape Cleare to Gore Point- 334 PM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY SATURDAY AND SATURDAY NIGHT... .TONIGHT...W wind 15 kt. Seas 6 ft. .SAT...W wind 15 kt becoming NW 25 kt in the afternoon. Seas 10 ft. .SAT NIGHT...NW wind 25 kt. Seas 9 ft. .SUN AND SUN NIGHT...NW wind 20 kt. Seas 6 ft. .MON...W wind 25 kt. Seas 5 ft. .TUE...NW wind 30 kt. Seas 11 ft. .WED...NW wind 25 kt. Seas 8 ft. $$ PKZ121-181330- Resurrection Bay- 334 PM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY SATURDAY NIGHT... .TONIGHT...N wind 15 kt in the evening becoming variable less than 10 kt. Seas 2 ft. .SAT...Variable wind less than 10 kt becoming N 20 kt in the afternoon. Seas 2 ft building to 4 ft in the afternoon. Freezing spray developing in the afternoon. .SAT NIGHT...N wind 25 kt. Seas 5 ft. Freezing spray. .SUN...N wind 20 kt. Seas 4 ft. .SUN NIGHT...N wind 10 kt. Seas 2 ft. .MON...N wind 15 kt. Seas 3 ft. .TUE...N wind 20 kt. Seas 4 ft. .WED...N wind 15 kt. Seas 3 ft. $$ PKZ125-181330- Prince William Sound- 334 PM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY SATURDAY NIGHT... .TONIGHT...NW wind 10 kt in the evening becoming variable less than 10 kt. Seas 2 ft. .SAT...NE wind 10 kt becoming NW 15 kt in the afternoon. Seas 3 ft. .SAT NIGHT...NW wind 25 kt. Seas 4 ft. .SUN...N wind 15 kt. Seas 3 ft. .SUN NIGHT...NE wind 10 kt. Seas 2 ft. .MON...NE wind 10 kt. Seas 2 ft. .TUE THROUGH WED...N wind 20 kt. Seas 4 ft. $$ PKZ126-181330- Port Valdez- 334 PM AKST Fri Dec 17 2021 .TONIGHT...NE wind increasing to 15 kt. Seas 3 ft. Freezing spray. .SAT...NE wind 10 kt increasing to 15 kt in the afternoon. Seas 3 ft. Freezing spray. .SAT NIGHT...NE wind 20 kt. Seas 4 ft. Freezing spray. .SUN...NE wind 20 kt. Seas 4 ft. .SUN NIGHT...NE wind 10 kt. Seas 2 ft. .MON...NE wind 10 kt. Seas 2 ft. .TUE THROUGH WED...N wind 20 kt. Seas 4 ft. $$ PKZ127-181330- Valdez Narrows- 334 PM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT... .TONIGHT...NE wind 25 kt. Seas 3 ft. Freezing spray. .SAT...N wind 30 kt. Seas 3 ft. Freezing spray. .SAT NIGHT...N wind 30 kt. Seas 3 ft. Freezing spray. .SUN...N wind 30 kt. Seas 3 ft. .SUN NIGHT...N wind 20 kt. Seas 3 ft. .MON...N wind 20 kt. Seas 3 ft. .TUE THROUGH WED...N wind 25 kt. Seas 3 ft. $$ PKZ128-181330- Valdez Arm- 334 PM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY SATURDAY NIGHT... .TONIGHT...NE wind 20 kt. Seas 4 ft. Freezing spray. .SAT...NE wind 20 kt. Seas 4 ft. .SAT NIGHT...NE wind 25 kt. Seas 5 ft. .SUN...N wind 20 kt. Seas 4 ft. .SUN NIGHT...N wind 15 kt. Seas 3 ft. .MON...N wind 10 kt. Seas 2 ft. .TUE THROUGH WED...N wind 20 kt. Seas 4 ft. $$ PKZ129-181330- Passage Canal- 334 PM AKST Fri Dec 17 2021 .TONIGHT...W wind 15 kt in the evening becoming variable less than 10 kt. Gusts to 35 kt near Whittier in the evening. Seas 2 ft. Freezing spray. .SAT...Variable wind less than 10 kt becoming W 15 kt in the afternoon. Gusts to 30 kt developing near Whittier in the afternoon. Seas 2 ft. Freezing spray. .SAT NIGHT...W wind 20 kt. Gusts to 35 kt near Whittier. Seas 3 ft. Freezing spray. .SUN...W wind 20 kt. Seas 3 ft. .SUN NIGHT...W wind 10 kt. Seas 2 ft. .MON...Variable wind less than 10 kt. Seas 2 ft. .TUE THROUGH WED...W wind 25 kt. Seas 4 ft. $$ PKZ130-181330- West of Barren Islands including Kamishak Bay- 334 PM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT... .TONIGHT...SE wind 25 kt becoming W after midnight. Seas 5 ft. Rain and snow. .SAT...W wind 15 kt increasing to 25 kt in the afternoon. Seas 5 ft building to 10 ft in the afternoon. .SAT NIGHT...W wind 25 kt becoming NW 15 kt after midnight. Seas 9 ft. .SUN AND SUN NIGHT...W wind 15 kt. Seas 5 ft. .MON...SW wind 30 kt. Seas 7 ft. .TUE...NW wind 35 kt. Seas 10 ft. .WED...NW wind 25 kt. Seas 9 ft. $$ PKZ131-181330- Barren Islands East- 334 PM AKST Fri Dec 17 2021 ...GALE WARNING SATURDAY NIGHT... .TONIGHT...SW wind 20 kt. Seas 8 ft. .SAT...W wind 25 kt. Seas 7 ft building to 12 ft in the afternoon. .SAT NIGHT...NW wind 35 kt becoming W 25 kt after midnight. Seas 16 ft. .SUN...NW wind 25 kt. Seas 12 ft. .SUN NIGHT...W wind 20 kt. Seas 8 ft. .MON...SW wind 30 kt. Seas 8 ft. .TUE...NW wind 40 kt. Seas 15 ft. .WED...NW wind 30 kt. Seas 10 ft. $$ PKZ132-181330- Marmot Island to Sitkinak- 334 PM AKST Fri Dec 17 2021 ...GALE WARNING SATURDAY NIGHT... .TONIGHT...SW wind 25 kt. Seas 10 ft. .SAT...W wind 30 kt. Seas 14 ft. .SAT NIGHT...W wind 35 kt diminishing to 25 kt after midnight. N of Dangerous Cape, W wind 25 kt. Seas 14 ft. .SUN...W wind 25 kt. Seas 10 ft. .SUN NIGHT...W wind 20 kt. Seas 7 ft. .MON...SW wind 25 kt. Seas 10 ft. .TUE...NW wind 35 kt. Seas 13 ft. .WED...W wind 30 kt. Seas 9 ft. $$ PKZ136-181330- Chiniak Bay- 334 PM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY SATURDAY... .TONIGHT...SW wind increasing to 15 kt. Seas 3 ft. .SAT...W wind 25 kt. Seas 3 ft. .SAT NIGHT...W wind 20 kt diminishing to 10 kt after midnight. Seas 3 ft. .SUN...W wind 15 kt. Seas 2 ft. .SUN NIGHT...W wind 10 kt. Seas 2 ft. .MON...SW wind 15 kt. Seas 2 ft. .TUE...NW wind 25 kt. Seas 4 ft. .WED...W wind 20 kt. Seas 2 ft. $$ PKZ137-181330- Marmot Bay- 334 PM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY SATURDAY AND SATURDAY NIGHT... .TONIGHT...S wind 10 kt. Seas 3 ft. .SAT...W wind 25 kt. Seas 6 ft. .SAT NIGHT...W wind 25 kt diminishing to 15 kt after midnight. Seas 4 ft. .SUN...W wind 20 kt. Seas 3 ft. .SUN NIGHT...W wind 10 kt. Seas 2 ft. .MON...SW wind 20 kt. Seas 3 ft. .TUE...NW wind 30 kt. Seas 4 ft. .WED...NW wind 20 kt. Seas 4 ft. $$ PKZ138-181330- Shelikof Strait- 334 PM AKST Fri Dec 17 2021 ...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT... .TONIGHT...S wind 25 kt. Seas 6 ft. .SAT...W wind 30 kt. Seas 7 ft. .SAT NIGHT...W wind 25 kt. Seas 5 ft. .SUN...W wind 25 kt. Seas 3 ft. .SUN NIGHT...SW wind 15 kt. Seas 3 ft. .MON...SW wind 20 kt. Seas 5 ft. .TUE...W wind 25 kt. Seas 6 ft. .WED...W wind 20 kt. Seas 5 ft. $$ PKZ139-181330- Cook Inlet Kalgin Island to Point Bede- 334 PM AKST Fri Dec 17 2021 .TONIGHT...NE wind 20 kt. Seas 3 ft. Freezing spray. Snow. .SAT...N wind 10 kt. Seas 3 ft. .SAT NIGHT...NE wind 10 kt. Seas 3 ft. .SUN AND SUN NIGHT...N wind 10 kt. Seas 3 ft. .MON...SW wind 15 kt. Seas 3 ft. .TUE...NW wind 20 kt. Seas 5 ft. .WED...N wind 15 kt. Seas 5 ft. $$ PKZ140-181330- Cook Inlet North of Kalgin Island- 334 PM AKST Fri Dec 17 2021 .TONIGHT...NE wind 10 kt becoming N 15 kt after midnight. Snow. .SAT...N wind 10 kt in the morning becoming variable less than 10 kt. .SAT NIGHT...Variable wind less than 10 kt. .SUN...NE wind 10 kt. .SUN NIGHT...Variable wind less than 10 kt. .MON...N wind 10 kt. .TUE...NW wind 10 kt. .WED...N wind 15 kt. $$ PKZ141-181330- Kachemak Bay- 334 PM AKST Fri Dec 17 2021 .TONIGHT...E wind 10 kt becoming SE 20 kt after midnight. Seas 2 ft. Snow. .SAT...W wind 15 kt becoming SE 10 kt in the afternoon. Seas 4 ft subsiding to 2 ft in the afternoon. Snow. .SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft. .SUN...Variable wind less than 10 kt. Seas 2 ft. .SUN NIGHT...Variable wind less than 10 kt. Seas 2 ft. .MON...SW wind 15 kt. Seas 4 ft. .TUE...NW wind 20 kt. Seas 4 ft. .WED...N wind 10 kt. Seas 2 ft. $$
723 FZAK51 PAFC 181206 CWFAER Coastal Waters Forecast National Weather Service Anchorage Alaska 306 AM AKST Sat Dec 18 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. PKZ197-190045- 306 AM AKST Sat Dec 18 2021 .SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+ COOK INLET... A 1013 mb low develops 50 nm south of Seward and weakens as it moves into the northeast Gulf Sat night. High Pressure builds across the Gulf on Sunday. $$ PKZ119-190045- Cape Suckling to Cape Cleare- 306 AM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY TONIGHT AND SUNDAY... .TODAY...Variable wind less than 10 kt in the morning becoming W 15 kt. Seas 6 ft. .TONIGHT...NW wind 20 kt. Gusts to 35 kt out of the Copper River Delta after midnight. Seas 8 ft. .SUN...N wind 20 kt in the morning becoming variable 10 kt. Gusts to 30 kt in the morning. Seas 8 ft. .SUN NIGHT...S wind 15 kt. Seas 6 ft. .MON...W wind 25 kt. Seas 5 ft. .TUE...N wind 35 kt. Seas 11 ft. .WED...N wind 30 kt. Seas 7 ft. $$ PKZ120-190045- Cape Cleare to Gore Point- 306 AM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY THROUGH TONIGHT... .TODAY...W wind 15 kt becoming NW 25 kt in the afternoon. Seas 7 ft. .TONIGHT...NW wind 25 kt. Seas 9 ft. .SUN...NW wind 20 kt. Seas 7 ft. .SUN NIGHT...NW wind 25 kt. Seas 6 ft. .MON THROUGH TUE...NW wind 35 kt. Seas 9 ft. .WED...NW wind 25 kt. Seas 5 ft. $$ PKZ121-190045- Resurrection Bay- 306 AM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY TONIGHT... .TODAY...Variable wind less than 10 kt becoming N 20 kt in the afternoon. Seas 2 ft building to 4 ft in the afternoon. .TONIGHT...N wind 25 kt. Seas 5 ft. .SUN...N wind 20 kt. Seas 4 ft. .SUN NIGHT...N wind 10 kt. Seas 2 ft. .MON THROUGH TUE...N wind 25 kt. Seas 5 ft. .WED...N wind 20 kt. Seas 4 ft. $$ PKZ125-190045- Prince William Sound- 306 AM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY TONIGHT... .TODAY...NE wind 10 kt becoming N 15 kt in the afternoon. Seas 2 ft. .TONIGHT...NW wind 25 kt. Seas 4 ft. .SUN...N wind 15 kt diminishing to 10 kt in the afternoon. Seas 3 ft. .SUN NIGHT...Variable wind less than 10 kt. Seas 2 ft. .MON...NE wind 15 kt. Seas 2 ft. .TUE THROUGH WED...N wind 20 kt. Seas 4 ft. $$ PKZ126-190045- Port Valdez- 306 AM AKST Sat Dec 18 2021 .TODAY...NE wind 10 kt increasing to 15 kt in the afternoon. Seas 3 ft. Freezing spray in the afternoon. .TONIGHT...NE wind 20 kt. Seas 4 ft. Freezing spray. .SUN...NE wind 20 kt. Seas 4 ft. Freezing spray. .SUN NIGHT...NE wind 10 kt. Seas 2 ft. .MON...NE wind 15 kt. Seas 3 ft. .TUE THROUGH WED...NE wind 20 kt. Seas 4 ft. $$ PKZ127-190045- Valdez Narrows- 306 AM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY THROUGH SUNDAY... .TODAY...N wind 15 kt in the morning increasing to 25 kt. Seas 3 ft. Freezing spray in the afternoon. .TONIGHT...N wind 30 kt. Seas 3 ft. Freezing spray. .SUN...N wind 30 kt. Seas 3 ft. Freezing spray. .SUN NIGHT...N wind 20 kt. Seas 3 ft. .MON...N wind 25 kt. Seas 3 ft. .TUE...N wind 30 kt. Seas 3 ft. .WED...NE wind 25 kt. Seas 3 ft. $$ PKZ128-190045- Valdez Arm- 306 AM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY TONIGHT AND SUNDAY... .TODAY...NE wind increasing to 15 kt. Seas 3 ft. Freezing spray in the afternoon. .TONIGHT...NE wind 25 kt. Seas 5 ft. .SUN...N wind 25 kt. Seas 5 ft. .SUN NIGHT...N wind 15 kt. Seas 3 ft. .MON...N wind 20 kt. Seas 4 ft. .TUE...N wind 25 kt. Seas 5 ft. .WED...N wind 20 kt. Seas 4 ft. $$ PKZ129-190045- Passage Canal- 306 AM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY TONIGHT... .TODAY...Variable wind less than 10 kt becoming W 15 kt in the afternoon. Gusts to 30 kt near Whittier in the afternoon. Seas 2 ft. .TONIGHT...W wind 25 kt. Gusts to 40 kt near Whittier. Seas 4 ft. Freezing spray. .SUN...W wind 20 kt. Gusts to 30 kt near Whittier in the morning. Seas 3 ft. Freezing spray. .SUN NIGHT...W wind 10 kt. Seas 2 ft. .MON...W wind 25 kt. Seas 4 ft. .TUE...W wind 30 kt. Seas 5 ft. .WED...W wind 25 kt. Seas 4 ft. $$ PKZ130-190045- West of Barren Islands including Kamishak Bay- 306 AM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY THROUGH TONIGHT... .TODAY...W wind 15 kt increasing to 25 kt in the afternoon. Seas 5 ft. .TONIGHT...W wind 25 kt becoming NW 15 kt after midnight. Seas 8 ft. .SUN...NW wind 15 kt. Seas 4 ft. .SUN NIGHT...W wind 15 kt. Seas 4 ft. .MON THROUGH TUE...NW wind 45 kt. Seas 12 ft. .WED...NW wind 25 kt. Seas 5 ft. $$ PKZ131-190045- Barren Islands East- 306 AM AKST Sat Dec 18 2021 ...GALE WARNING TONIGHT... .TODAY...W wind 25 kt. Seas 7 ft. .TONIGHT...NW wind 35 kt. Seas 13 ft. .SUN...W wind 25 kt. Seas 10 ft. .SUN NIGHT...W wind 25 kt. Seas 6 ft. .MON...W wind 50 kt. Seas 14 ft. .TUE...NW wind 50 kt. Seas 14 ft. .WED...NW wind 30 kt. Seas 7 ft. $$ PKZ132-190045- Marmot Island to Sitkinak- 306 AM AKST Sat Dec 18 2021 ...GALE WARNING TONIGHT... .TODAY...W wind 30 kt. Seas 11 ft. .TONIGHT...W wind 35 kt diminishing to 20 kt after midnight. N of Dangerous Cape, W wind 20 kt. Seas 12 ft. .SUN...W wind 20 kt. Seas 10 ft. .SUN NIGHT...W wind 20 kt. Seas 8 ft. .MON THROUGH TUE...NW wind 40 kt. Seas 12 ft. .WED...W wind 25 kt. Seas 8 ft. $$ PKZ136-190045- Chiniak Bay- 306 AM AKST Sat Dec 18 2021 .TODAY...W wind 20 kt. Seas 3 ft. Freezing spray. .TONIGHT...W wind 20 kt becoming SW 10 kt after midnight. Seas 3 ft. .SUN...W wind 15 kt in the morning becoming variable less than 10 kt. Seas 2 ft. .SUN NIGHT...W wind 10 kt. Seas 2 ft. .MON...W wind 30 kt. Seas 4 ft. .TUE...NW wind 30 kt. Seas 4 ft. .WED...NW wind 15 kt. Seas 2 ft. $$ PKZ137-190045- Marmot Bay- 306 AM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY TODAY... .TODAY...W wind 25 kt. Seas 4 ft. Freezing spray in the morning. .TONIGHT...W wind 20 kt. Seas 3 ft. .SUN...W wind 20 kt. Seas 3 ft. .SUN NIGHT...W wind 15 kt. Seas 3 ft. .MON THROUGH TUE...NW wind 30 kt. Seas 5 ft. .WED...W wind 15 kt. Seas 2 ft. $$ PKZ138-190045- Shelikof Strait- 306 AM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY THROUGH SUNDAY... .TODAY...W wind 30 kt. Seas 8 ft. .TONIGHT...W wind 25 kt. Seas 6 ft subsiding to 4 ft after midnight. .SUN...W wind 25 kt. Seas 5 ft. .SUN NIGHT...SW wind 20 kt. Seas 5 ft. .MON...W wind 30 kt. Seas 8 ft. .TUE...NW wind 30 kt. Seas 8 ft. .WED...W wind 20 kt. Seas 4 ft. $$ PKZ139-190045- Cook Inlet Kalgin Island to Point Bede- 306 AM AKST Sat Dec 18 2021 .TODAY...N wind 15 kt becoming NE 10 kt in the afternoon. Seas 3 ft. .TONIGHT...Variable wind less than 10 kt. Seas 3 ft. .SUN...NE wind 10 kt. Seas 3 ft. .SUN NIGHT...NE wind 10 kt. Seas 3 ft. .MON...N wind 25 kt. Seas 3 ft. .TUE...NW wind 20 kt. Seas 5 ft. .WED...N wind 15 kt. Seas 3 ft. $$ PKZ140-190045- Cook Inlet North of Kalgin Island- 306 AM AKST Sat Dec 18 2021 .TODAY...N wind 10 kt in the morning becoming variable less than 10 kt. .TONIGHT...Variable wind less than 10 kt. .SUN...NE wind 10 kt. .SUN NIGHT...Variable wind less than 10 kt. .MON...Variable wind less than 10 kt. .TUE...NW wind 10 kt. .WED...NE wind 10 kt. $$ PKZ141-190045- Kachemak Bay- 306 AM AKST Sat Dec 18 2021 .TODAY...W wind 10 kt in the morning becoming variable less than 10 kt. Seas 2 ft. Snow. .TONIGHT...Variable wind less than 10 kt. Seas 2 ft. .SUN...Variable wind less than 10 kt becoming NW 10 kt in the afternoon. Seas 2 ft. .SUN NIGHT...SW wind 10 kt. Seas 2 ft. .MON...SW wind 20 kt. Seas 6 ft. .TUE...NW wind 15 kt. Seas 2 ft. .WED...NW wind 10 kt. Seas 2 ft. $$
209 FZAK51 PAFC 190016 CWFAER Coastal Waters Forecast National Weather Service Anchorage Alaska 316 PM AKST Sat Dec 18 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. PKZ197-191330- 316 PM AKST Sat Dec 18 2021 .SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+ COOK INLET... A 1015 mb low 70 nm south of Cordova weakens as it moves into the northeast Gulf Sat night. High Pressure builds across the Gulf on Sunday and Monday. $$ PKZ119-191330- Cape Suckling to Cape Cleare- 316 PM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY THROUGH SUNDAY... .TONIGHT...NW wind 20 kt. Gusts to 35 kt out of the Copper River Delta after midnight. Seas 8 ft. .SUN...NW wind 20 kt in the morning becoming variable 10 kt. Gusts to 30 kt out of the Copper River Delta in the morning. Seas 8 ft. .SUN NIGHT...Variable wind 10 kt. Seas 5 ft. .MON...Variable wind 10 kt. Seas 4 ft. .MON NIGHT...NW wind 25 kt. Seas 7 ft. .TUE...N wind 35 kt. Seas 13 ft. .WED...N wind 30 kt. Seas 7 ft. .THU...N wind 20 kt. Seas 7 ft. $$ PKZ120-191330- Cape Cleare to Gore Point- 316 PM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY TONIGHT AND SUNDAY NIGHT... .TONIGHT...NW wind 25 kt. Seas 9 ft. .SUN...NW wind 20 kt. Seas 7 ft. .SUN NIGHT...NW wind 25 kt. Seas 6 ft. .MON...W wind 15 kt. Seas 4 ft. .MON NIGHT...NW wind 30 kt. Seas 9 ft. .TUE...NW wind 30 kt. Seas 10 ft. .WED...NW wind 25 kt. Seas 5 ft. .THU...NW wind 25 kt. Seas 9 ft. $$ PKZ121-191330- Resurrection Bay- 316 PM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY TONIGHT... .TONIGHT...N wind 25 kt. Seas 5 ft. .SUN...N wind 20 kt. Seas 4 ft. .SUN NIGHT...N wind 10 kt. Seas 2 ft. .MON...N wind 10 kt. Seas 2 ft. .MON NIGHT...N wind 25 kt. Seas 5 ft. .TUE...N wind 25 kt. Seas 5 ft. .WED THROUGH THU...N wind 20 kt. Seas 4 ft. $$ PKZ125-191330- Prince William Sound- 316 PM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY TONIGHT... .TONIGHT...NW wind 25 kt. Seas 4 ft. .SUN...N wind 15 kt diminishing to 10 kt in the afternoon. Seas 3 ft. .SUN NIGHT...Variable wind less than 10 kt becoming N 10 kt after midnight. Seas 2 ft. .MON...Variable wind less than 10 kt. Seas 2 ft. .MON NIGHT...N wind 15 kt. Seas 3 ft. .TUE...NW wind 25 kt. Seas 6 ft. .WED...N wind 20 kt. Seas 3 ft. .THU...N wind 15 kt. Seas 3 ft. $$ PKZ126-191330- Port Valdez- 316 PM AKST Sat Dec 18 2021 .TONIGHT...NE wind 15 kt. Gusts to 25 kt. Seas 3 ft. Freezing spray. .SUN...NE wind 15 kt. Seas 3 ft. Freezing spray. .SUN NIGHT...NE wind 10 kt. Seas 2 ft. .MON...NE wind 10 kt. Seas 2 ft. .MON NIGHT...NE wind 15 kt. Seas 3 ft. .TUE THROUGH THU...NE wind 20 kt. Seas 4 ft. $$ PKZ127-191330- Valdez Narrows- 316 PM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY THROUGH SUNDAY... .TONIGHT...N wind increasing to 30 kt. Seas 3 ft. Freezing spray. .SUN...N wind 30 kt. Seas 3 ft. Freezing spray. .SUN NIGHT...N wind 20 kt. Seas 3 ft. Freezing spray. .MON...N wind 20 kt. Seas 3 ft. .MON NIGHT...N wind 25 kt. Seas 3 ft. .TUE...N wind 30 kt. Seas 3 ft. .WED THROUGH THU...NE wind 25 kt. Seas 3 ft. $$ PKZ128-191330- Valdez Arm- 316 PM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY THROUGH SUNDAY... .TONIGHT...NE wind increasing to 25 kt. Seas building to 5 ft. .SUN...N wind 25 kt diminishing to 15 kt late. Seas 5 ft. .SUN NIGHT...N wind 15 kt diminishing to 10 kt after midnight. Seas 3 ft. .MON...N wind 10 kt. Seas 2 ft. .MON NIGHT...N wind 20 kt. Seas 4 ft. .TUE...N wind 25 kt. Seas 5 ft. .WED THROUGH THU...NE wind 20 kt. Seas 4 ft. $$ PKZ129-191330- Passage Canal- 316 PM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY TONIGHT... .TONIGHT...W wind 25 kt. Gusts to 40 kt near Whittier. Seas 4 ft. Freezing spray. .SUN...W wind 20 kt. Gusts to 30 kt near Whittier in the morning. Seas 3 ft. Freezing spray. .SUN NIGHT...W wind 10 kt in the evening becoming variable less than 10 kt. Seas 2 ft. .MON...W wind 10 kt. Seas 2 ft. .MON NIGHT...W wind 25 kt. Seas 4 ft. .TUE...W wind 30 kt. Seas 5 ft. .WED THROUGH THU...W wind 25 kt. Seas 4 ft. $$ PKZ130-191330- West of Barren Islands including Kamishak Bay- 316 PM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY TONIGHT... .TONIGHT...W wind 25 kt becoming NW 15 kt after midnight. Seas 8 ft. .SUN...NW wind 15 kt. Seas 4 ft. .SUN NIGHT...W wind 15 kt becoming NE 10 kt after midnight. Seas 4 ft. .MON...SE wind 15 kt. Seas 3 ft. .MON NIGHT...W wind 40 kt. Seas 13 ft. .TUE...NW wind 40 kt. Seas 13 ft. .WED...NW wind 25 kt. Seas 5 ft. .THU...NW wind 30 kt. Seas 8 ft. $$ PKZ131-191330- Barren Islands East- 316 PM AKST Sat Dec 18 2021 ...GALE WARNING TONIGHT... .TONIGHT...NW wind 35 kt. Seas 13 ft. .SUN...W wind 25 kt. Seas 9 ft. .SUN NIGHT...W wind 25 kt. Seas 7 ft. .MON...W wind 20 kt. Seas 5 ft. .MON NIGHT...W wind 45 kt. Seas 19 ft. .TUE...NW wind 45 kt. Seas 19 ft. .WED THROUGH THU...NW wind 30 kt. Seas 8 ft. $$ PKZ132-191330- Marmot Island to Sitkinak- 316 PM AKST Sat Dec 18 2021 ...GALE WARNING TONIGHT... .TONIGHT...W wind 35 kt diminishing to 20 kt after midnight. N of Dangerous Cape, W wind 20 kt. Seas 12 ft. .SUN...W wind 20 kt. Seas 9 ft. .SUN NIGHT...W wind 20 kt. Seas 8 ft. .MON...SW wind 20 kt. Seas 7 ft. .MON NIGHT...W wind 40 kt. Seas 15 ft. .TUE...NW wind 45 kt. Seas 16 ft. .WED THROUGH THU...NW wind 25 kt. Seas 8 ft. $$ PKZ136-191330- Chiniak Bay- 316 PM AKST Sat Dec 18 2021 .TONIGHT...W wind 20 kt becoming SW 10 kt after midnight. Seas 3 ft. .SUN...SW wind 10 kt in the morning becoming variable less than 10 kt. Seas 2 ft. .SUN NIGHT...NW wind 10 kt. Seas 2 ft. .MON...SW wind 10 kt. Seas 2 ft. .MON NIGHT...W wind 30 kt. Seas 5 ft. .TUE...NW wind 35 kt. Seas 7 ft. .WED THROUGH THU...NW wind 15 kt. Seas 2 ft. $$ PKZ137-191330- Marmot Bay- 316 PM AKST Sat Dec 18 2021 .TONIGHT...W wind 20 kt. Seas 3 ft. .SUN...W wind 20 kt. Seas 3 ft. .SUN NIGHT...W wind 15 kt. Seas 3 ft. .MON...SW wind 10 kt. Seas 2 ft. .MON NIGHT...W wind 30 kt. Seas 5 ft. .TUE...NW wind 30 kt. Seas 5 ft. .WED...W wind 15 kt. Seas 2 ft. .THU...W wind 20 kt. Seas 3 ft. $$ PKZ138-191330- Shelikof Strait- 316 PM AKST Sat Dec 18 2021 ...SMALL CRAFT ADVISORY THROUGH SUNDAY... .TONIGHT...W wind 25 kt. Seas 6 ft. .SUN...SW wind 25 kt. Seas 7 ft. .SUN NIGHT...SW wind 20 kt. Seas 5 ft. .MON...SW wind 25 kt. Seas 5 ft. .MON NIGHT...W wind 30 kt. Seas 8 ft. .TUE...NW wind 30 kt. Seas 9 ft. .WED THROUGH THU...W wind 20 kt. Seas 5 ft. $$ PKZ139-191330- Cook Inlet Kalgin Island to Point Bede- 316 PM AKST Sat Dec 18 2021 .TONIGHT...Variable wind less than 10 kt. Seas 3 ft. .SUN...NE wind 10 kt. Seas 3 ft. .SUN NIGHT...N wind 10 kt. Seas 3 ft. .MON...E wind 10 kt. Seas 2 ft. .MON NIGHT...N wind 15 kt. Seas 3 ft. .TUE THROUGH THU...N wind 15 kt. Seas 4 ft. $$ PKZ140-191330- Cook Inlet North of Kalgin Island- 316 PM AKST Sat Dec 18 2021 .TONIGHT...Variable wind less than 10 kt. .SUN...NE wind 10 kt. .SUN NIGHT...N wind 10 kt in the evening becoming variable less than 10 kt. .MON...NE wind 10 kt. .MON NIGHT THROUGH THU...N wind 10 kt. $$ PKZ141-191330- Kachemak Bay- 316 PM AKST Sat Dec 18 2021 .TONIGHT...NE wind up to 10 kt. Seas 2 ft. .SUN...Variable wind less than 10 kt becoming NW 10 kt in the afternoon. Seas 2 ft. .SUN NIGHT AND MON...Variable wind less than 10 kt. Seas 2 ft. .MON NIGHT...NW wind 10 kt. Seas 2 ft. .TUE...N wind 15 kt. Seas 2 ft. .WED...NW wind 10 kt. Seas 2 ft. .THU...NW wind 15 kt. Seas 2 ft. $$
000 FZAK51 PAFC 191324 CWFAER Coastal Waters Forecast National Weather Service Anchorage Alaska 424 AM AKST Sun Dec 19 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. PKZ197-200230- 424 AM AKST Sun Dec 19 2021 .SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+ COOK INLET... High pressure builds across the Gulf today and Mon. Weak low pressure develops south of Prince William Sound Tue morning. $$ PKZ119-200230- Cape Suckling to Cape Cleare- 424 AM AKST Sun Dec 19 2021 .TODAY...NW wind 20 kt in the morning becoming variable 10 kt. Wind gusts to 35 kt out of the Copper River Delta in the morning. Seas 8 ft. Freezing spray near the Copper River Delta in the morning. .TONIGHT...Variable wind 10 kt. Seas 6 ft. .MON...Variable wind 10 kt. Seas 5 ft. .MON NIGHT...W wind 25 kt. Seas 6 ft. .TUE...NW wind 45 kt. Seas 10 ft. .WED...N wind 30 kt. Seas 9 ft. .THU...N wind 25 kt. Seas 8 ft. $$ PKZ120-200230- Cape Cleare to Gore Point- 424 AM AKST Sun Dec 19 2021 ...SMALL CRAFT ADVISORY TODAY... .TODAY...NW wind 20 kt. Seas 9 ft. .TONIGHT...N wind 20 kt. Seas 6 ft. .MON...W wind 15 kt. Seas 4 ft. .MON NIGHT...SW wind 20 kt becoming NW 40 kt after midnight. Seas 4 ft in the evening building to 10 ft. .TUE...NW wind 40 kt. Seas 10 ft. .WED...NW wind 25 kt. Seas 7 ft. .THU...NW wind 30 kt. Seas 10 ft. $$ PKZ121-200230- Resurrection Bay- 424 AM AKST Sun Dec 19 2021 .TODAY...N wind 20 kt diminishing to 10 kt in the afternoon. Seas 4 ft subsiding to 2 ft in the afternoon. Freezing spray in the morning. .TONIGHT...N wind 10 kt. Seas 2 ft. .MON...N wind 10 kt in the morning becoming variable less than 10 kt. Seas 2 ft. .MON NIGHT...Variable wind 10 kt in the evening becoming N 35 kt. Seas 2 ft in the evening building to 7 ft. .TUE...N wind 35 kt. Seas 7 ft. .WED THROUGH THU...N wind 20 kt. Seas 4 ft. $$ PKZ125-200230- Prince William Sound- 424 AM AKST Sun Dec 19 2021 .TODAY...N wind 15 kt diminishing to 10 kt in the afternoon. Seas 4 ft. .TONIGHT...N wind 10 kt. Seas 2 ft. .MON...Variable wind less than 10 kt becoming SE 10 kt in the afternoon. Seas 2 ft. .MON NIGHT...NE wind 30 kt. Seas 4 ft. .TUE...NW wind 30 kt. Seas 6 ft. .WED...N wind 25 kt. Seas 4 ft. .THU...N wind 15 kt. Seas 3 ft. $$ PKZ126-200230- Port Valdez- 424 AM AKST Sun Dec 19 2021 .TODAY...NE wind 10 kt. Seas 4 ft. Freezing spray in the morning. .TONIGHT...NE wind 10 kt. Seas 2 ft. .MON...NE wind 10 kt. Seas 2 ft. .MON NIGHT...E wind 30 kt. Seas 6 ft. .TUE...E wind 35 kt. Seas 6 ft. .WED THROUGH THU...NE wind 20 kt. Seas 4 ft. $$ PKZ127-200230- Valdez Narrows- 424 AM AKST Sun Dec 19 2021 ...SMALL CRAFT ADVISORY TODAY... .TODAY...N wind 20 kt. Seas 4 ft. Freezing spray. .TONIGHT...N wind 20 kt. Seas 3 ft. Freezing spray. .MON...N wind 20 kt. Seas 3 ft. Freezing spray. .MON NIGHT...N wind 30 kt. Seas 4 ft. .TUE...N wind 40 kt. Seas 4 ft. .WED...N wind 35 kt. Seas 4 ft. .THU...NE wind 30 kt. Seas 3 ft. $$ PKZ128-200230- Valdez Arm- 424 AM AKST Sun Dec 19 2021 ...SMALL CRAFT ADVISORY TODAY... .TODAY...N wind 15 kt. Seas 5 ft. .TONIGHT...N wind 15 kt diminishing to 10 kt after midnight. Seas 3 ft. .MON...N wind 10 kt. Seas 2 ft. .MON NIGHT...NE wind 20 kt. Seas 4 ft. .TUE...N wind 35 kt. Seas 7 ft. .WED...NE wind 30 kt. Seas 6 ft. .THU...NE wind 25 kt. Seas 5 ft. $$ PKZ129-200230- Passage Canal- 424 AM AKST Sun Dec 19 2021 .TODAY...W wind 20 kt. Gusts to 40 kt near Whittier in the morning. Seas 4 ft. Freezing spray. .TONIGHT...W wind 10 kt in the evening becoming variable less than 10 kt. Seas 2 ft. .MON...W wind 10 kt in the morning becoming variable less than 10 kt. Seas 2 ft. Snow. .MON NIGHT...W wind 35 kt. Seas 5 ft. .TUE...W wind 35 kt. Seas 5 ft. .WED THROUGH THU...W wind 25 kt. Seas 4 ft. $$ PKZ130-200230- West of Barren Islands including Kamishak Bay- 424 AM AKST Sun Dec 19 2021 .TODAY...NW wind 15 kt. Seas 5 ft. .TONIGHT...NW wind 15 kt. Seas 4 ft. .MON...SE wind 15 kt becoming W in the afternoon. Seas 2 ft. Rain and snow. .MON NIGHT...W wind 20 in the evening increasing to 45 kt. Seas 6 ft in the evening building to 14 ft. .TUE...NW wind 45 kt. Seas 16 ft. .WED...NW wind 30 kt. Seas 9 ft. .THU...W wind 35 kt. Seas 9 ft. $$ PKZ131-200230- Barren Islands East- 424 AM AKST Sun Dec 19 2021 ...SMALL CRAFT ADVISORY THROUGH TONIGHT... .TODAY...NW wind increasing to 25 kt. Seas building to 8 ft. .TONIGHT...W wind 25 kt. Seas 6 ft. .MON...W wind 20 kt. Seas 5 ft. .MON NIGHT...W wind 25 kt in the evening increasing to 50 kt. Seas 7 ft in the evening building to 15 ft. .TUE...NW wind 45 kt. Seas 18 ft. .WED THROUGH THU...NW wind 35 kt. Seas 13 ft. $$ PKZ132-200230- Marmot Island to Sitkinak- 424 AM AKST Sun Dec 19 2021 ...SMALL CRAFT ADVISORY THROUGH MONDAY... .TODAY...W wind 20 kt. Seas 10 ft. .TONIGHT...W wind 20 kt. Seas 10 ft. .MON...SW wind 25 kt. Seas 9 ft. .MON NIGHT...W wind 35 kt. Seas 10 ft. .TUE...NW wind 40 kt. Seas 11 ft. .WED THROUGH THU...NW wind 30 kt. Seas 10 ft. $$ PKZ136-200230- Chiniak Bay- 424 AM AKST Sun Dec 19 2021 .TODAY...SW wind 10 kt. Seas 3 ft. .TONIGHT...Variable wind less than 10 kt becoming W 10 kt after midnight. Seas 3 ft. .MON...S wind 10 kt. Seas 2 ft. .MON NIGHT...W wind 30 kt. Seas 5 ft. .TUE...NW wind 30 kt. Seas 5 ft. .WED THROUGH THU...NW wind 20 kt. Seas 3 ft. $$ PKZ137-200230- Marmot Bay- 424 AM AKST Sun Dec 19 2021 .TODAY...W wind 20 kt. Seas 4 ft. .TONIGHT...W wind 15 kt. Seas 3 ft. .MON...SW wind 10 kt. Seas 2 ft. .MON NIGHT...W wind 30 kt. Seas 6 ft. .TUE...W wind 30 kt. Seas 4 ft. .WED...W wind 20 kt. Seas 3 ft. .THU...W wind 25 kt. Seas 4 ft. $$ PKZ138-200230- Shelikof Strait- 424 AM AKST Sun Dec 19 2021 ...SMALL CRAFT ADVISORY TODAY AND MONDAY... .TODAY...W wind 25 kt. Seas 9 ft. .TONIGHT...SW wind 20 kt. Seas 6 ft. .MON...SW wind 25 kt. Seas 7 ft. .MON NIGHT...W wind 35 kt. Seas 8 ft. .TUE...W wind 35 kt. Seas 8 ft. .WED...W wind 20 kt. Seas 5 ft. .THU...W wind 25 kt. Seas 6 ft. $$ PKZ139-200230- Cook Inlet Kalgin Island to Point Bede- 424 AM AKST Sun Dec 19 2021 .TODAY...NE wind 10 kt. Seas 3 ft. .TONIGHT...N wind 10 kt. Seas 3 ft. .MON...Variable wind 10 kt. Seas 2 ft. .MON NIGHT...SW wind 15 kt in the evening becoming NW 35 kt. Seas 3 ft in the evening building to 6 ft. .TUE...NW wind 20 kt. Seas 4 ft. .WED...N wind 15 kt. Seas 3 ft. .THU...NW wind 20 kt. Seas 4 ft. $$ PKZ140-200230- Cook Inlet North of Kalgin Island- 424 AM AKST Sun Dec 19 2021 .TODAY...NE wind 10 kt. Seas 2 ft. .TONIGHT...N wind 10 kt in the evening becoming variable less than 10 kt. Seas 2 ft. Patchy freezing fog. .MON...Variable wind less than 10 kt becoming NE 10 kt in the afternoon. .MON NIGHT...N wind 10 kt. .TUE...N wind 15 kt. .WED THROUGH THU...NE wind 10 kt. $$ PKZ141-200230- Kachemak Bay- 424 AM AKST Sun Dec 19 2021 .TODAY...Variable wind less than 10 kt. Seas 2 ft. .TONIGHT...Variable wind less than 10 kt. Seas 2 ft. .MON...Variable wind less than 10 kt becoming E 10 kt in the afternoon. Seas 2 ft. .MON NIGHT...SW wind 15 kt in the evening becoming W 35 kt...then diminishing to to 25 kt after midnight. Seas 4 ft in the evening building to 10 ft...then subsiding to 6 ft after midnight. .TUE...N wind 15 kt. Seas 4 ft. .WED...NW wind 10 kt. Seas 2 ft. .THU...NW wind 15 kt. Seas 2 ft. $$
717 FZAK51 PAFC 200016 CWFAER Coastal Waters Forecast National Weather Service Anchorage Alaska 316 PM AKST Sun Dec 19 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. PKZ197-201315- 316 PM AKST Sun Dec 19 2021 .SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+ COOK INLET... High pressure builds across the Gulf through Mon. A 1005 mb low develops 100 nm southeast of Cordova Tue morning and moves into the eastern Gulf Tue afternoon. A cold front moves across the Gulf on Tuesday. $$ PKZ119-201315- Cape Suckling to Cape Cleare- 316 PM AKST Sun Dec 19 2021 ...SMALL CRAFT ADVISORY MONDAY NIGHT... .TONIGHT...Variable wind 10 kt. Seas 6 ft. .MON...Variable wind 10 kt becoming SW 15 kt in the afternoon. Seas 6 ft. .MON NIGHT...SW wind 15 kt becoming N 25 kt after midnight. Gusts to 40 kt out of the Copper River Delta after midnight. Seas 6 ft. .TUE...NW wind 45 kt. Seas 10 ft. .TUE NIGHT...NW wind 30 kt. Seas 9 ft. .WED THROUGH FRI...N wind 25 kt. Seas 8 ft. $$ PKZ120-201315- Cape Cleare to Gore Point- 316 PM AKST Sun Dec 19 2021 ...GALE WARNING MONDAY NIGHT... .TONIGHT...NW wind 25 kt. Seas 6 ft. .MON...W wind 15 kt. Seas 6 ft. .MON NIGHT...W wind 30 kt becoming NW 40 kt after midnight. Seas 10 ft. .TUE...NW wind 40 kt. Seas 10 ft. .TUE NIGHT...NW wind 25 kt. Seas 8 ft. .WED...NW wind 25 kt. Seas 7 ft. .THU...NW wind 30 kt. Seas 10 ft. .FRI...NW wind 20 kt. Seas 6 ft. $$ PKZ121-201315- Resurrection Bay- 316 PM AKST Sun Dec 19 2021 ...GALE WARNING MONDAY NIGHT... .TONIGHT...N wind 10 kt. Seas 2 ft. .MON...N wind 10 kt in the morning becoming variable less than 10 kt. Seas 2 ft. .MON NIGHT...Variable wind 10 kt becoming N 35 kt after midnight. Seas 2 ft building to 7 ft after midnight. .TUE...N wind 35 kt. Seas 7 ft. .TUE NIGHT...N wind 25 kt. Seas 5 ft. .WED THROUGH THU...N wind 20 kt. Seas 4 ft. .FRI...N wind 15 kt. Seas 3 ft. $$ PKZ125-201315- Prince William Sound- 316 PM AKST Sun Dec 19 2021 ...SMALL CRAFT ADVISORY MONDAY NIGHT... .TONIGHT...N wind 10 kt in the evening becoming variable less than 10 kt. Seas 2 ft. .MON...Variable wind less than 10 kt becoming E 10 kt in the afternoon. Seas 2 ft. .MON NIGHT...NE wind 15 kt becoming NW 30 kt after midnight. Seas 2 ft building to 4 ft after midnight. .TUE AND TUE NIGHT...NW wind 30 kt. Seas 6 ft. .WED THROUGH FRI...N wind 15 kt. Seas 3 ft. $$ PKZ126-201315- Port Valdez- 316 PM AKST Sun Dec 19 2021 ...SMALL CRAFT ADVISORY MONDAY NIGHT... .TONIGHT...NE wind 10 kt. Seas 2 ft. .MON...NE wind 10 kt. Seas 2 ft. .MON NIGHT...Variable wind less than 10 kt becoming E 30 kt after midnight. Seas 2 ft building to 6 ft after midnight. Snow. .TUE...E wind 35 kt. Seas 6 ft. .TUE NIGHT...E wind 20 kt. Seas 4 ft. .WED THROUGH THU...NE wind 20 kt. Seas 4 ft. .FRI...NE wind 15 kt. Seas 3 ft. $$ PKZ127-201315- Valdez Narrows- 316 PM AKST Sun Dec 19 2021 ...SMALL CRAFT ADVISORY MONDAY NIGHT... .TONIGHT...N wind 20 kt. Seas 3 ft. Freezing spray. .MON...N wind 20 kt. Seas 3 ft. Freezing spray. .MON NIGHT...N wind 15 kt increasing to 30 kt after midnight. Seas 4 ft. Snow. .TUE...N wind 40 kt. Seas 4 ft. .TUE NIGHT...N wind 35 kt. Seas 4 ft. .WED...N wind 35 kt. Seas 4 ft. .THU THROUGH FRI...NE wind 30 kt. Seas 3 ft. $$ PKZ128-201315- Valdez Arm- 316 PM AKST Sun Dec 19 2021 .TONIGHT...N wind 15 kt diminishing to 10 kt after midnight. Seas 3 ft. .MON...N wind 10 kt. Seas 2 ft. .MON NIGHT...NE wind 20 kt. Seas 4 ft. .TUE...N wind 35 kt. Seas 7 ft. .TUE NIGHT...N wind 30 kt. Seas 6 ft. .WED...NE wind 30 kt. Seas 6 ft. .THU THROUGH FRI...NE wind 25 kt. Seas 5 ft. $$ PKZ129-201315- Passage Canal- 316 PM AKST Sun Dec 19 2021 ...GALE WARNING MONDAY NIGHT... .TONIGHT...W wind 20 kt in the evening becoming variable less than 10 kt. Gusts to 30 kt near Whittier in the evening. Seas 2 ft. .MON...W wind 10 kt in the morning becoming variable less than 10 kt. Seas 2 ft. Snow. .MON NIGHT...Variable wind 10 kt becoming W 35 kt after midnight. Gusts to 50 kt near Whittier after midnight. Seas 2 ft building to 5 ft after midnight. .TUE AND TUE NIGHT...W wind 35 kt. Seas 5 ft. .WED THROUGH FRI...W wind 25 kt. Seas 4 ft. $$ PKZ130-201315- West of Barren Islands including Kamishak Bay- 316 PM AKST Sun Dec 19 2021 ...GALE WARNING MONDAY NIGHT... .TONIGHT...W wind 15 kt. Seas 3 ft. .MON...SE wind 20 kt becoming W 15 kt in the afternoon. Seas 2 ft. Rain and snow. .MON NIGHT...W wind 20 kt in the evening increasing to 45 kt. Seas 6 ft in the evening building to 14 ft. .TUE...NW wind 45 kt. Seas 16 ft. .TUE NIGHT...NW wind 35 kt. Seas 11 ft. .WED...NW wind 25 kt. Seas 7 ft. .THU...W wind 35 kt. Seas 9 ft. .FRI...NW wind 25 kt. Seas 6 ft. $$ PKZ131-201315- Barren Islands East- 316 PM AKST Sun Dec 19 2021 ...STORM WARNING MONDAY NIGHT... .TONIGHT...W wind 25 kt. Seas 6 ft. .MON...SW wind 20 kt. Seas 6 ft. .MON NIGHT...W wind 40 kt becoming NW 50 kt after midnight. Seas 9 ft building to 15 ft after midnight. .TUE...NW wind 45 kt. Seas 18 ft. .TUE NIGHT...NW wind 35 kt. Seas 12 ft. .WED...NW wind 30 kt. Seas 12 ft. .THU...NW wind 35 kt. Seas 14 ft. .FRI...NW wind 30 kt. Seas 9 ft. $$ PKZ132-201315- Marmot Island to Sitkinak- 316 PM AKST Sun Dec 19 2021 ...GALE WARNING MONDAY NIGHT... .TONIGHT...W wind 20 kt. Seas 9 ft. .MON...SW wind 15 kt increasing to 25 kt in the afternoon. Seas 8 ft. .MON NIGHT...NW wind 25 kt in the evening increasing to 35 kt. Seas 10 ft. .TUE...NW wind 40 kt. Seas 11 ft. .TUE NIGHT...NW wind 30 kt. Seas 9 ft. .WED THROUGH THU...NW wind 30 kt. Seas 10 ft. .FRI...W wind 25 kt. Seas 9 ft. $$ PKZ136-201315- Chiniak Bay- 316 PM AKST Sun Dec 19 2021 ...SMALL CRAFT ADVISORY MONDAY NIGHT... .TONIGHT...Variable wind less than 10 kt becoming SW 10 kt after midnight. Seas 2 ft. .MON...S wind 10 kt. Seas 2 ft. .MON NIGHT...W wind 30 kt. Seas 5 ft. .TUE...NW wind 30 kt. Seas 5 ft. .TUE NIGHT...NW wind 20 kt. Seas 3 ft. .WED...W wind 15 kt. Seas 2 ft. .THU...NW wind 20 kt. Seas 3 ft. .FRI...NW wind 10 kt. Seas 1 ft. $$ PKZ137-201315- Marmot Bay- 316 PM AKST Sun Dec 19 2021 ...SMALL CRAFT ADVISORY MONDAY NIGHT... .TONIGHT...W wind 15 kt. Seas 3 ft. .MON...SW wind 10 kt becoming W 15 kt in the afternoon. Seas 3 ft. .MON NIGHT...W wind 15 kt in the evening increasing to 30 kt. Seas 6 ft. .TUE...NW wind 30 kt. Seas 4 ft. .TUE NIGHT...W wind 20 kt. Seas 3 ft. .WED...W wind 20 kt. Seas 3 ft. .THU...W wind 25 kt. Seas 4 ft. .FRI...NW wind 15 kt. Seas 2 ft. $$ PKZ138-201315- Shelikof Strait- 316 PM AKST Sun Dec 19 2021 ...GALE WARNING MONDAY NIGHT... .TONIGHT...SW wind 25 kt. Seas 4 ft. .MON...SW wind 25 kt. Seas 7 ft. .MON NIGHT...W wind 35 kt. Seas 8 ft. .TUE...NW wind 35 kt. Seas 8 ft. .TUE NIGHT...W wind 20 kt. Seas 4 ft. .WED...W wind 20 kt. Seas 5 ft. .THU...W wind 25 kt. Seas 6 ft. .FRI...W wind 20 kt. Seas 4 ft. $$ PKZ139-201315- Cook Inlet Kalgin Island to Point Bede- 316 PM AKST Sun Dec 19 2021 ...GALE WARNING MONDAY NIGHT... .TONIGHT...N wind 10 kt in the evening becoming variable less than 10 kt. Seas 3 ft. .MON...Variable wind less than 10 kt becoming SW 15 kt in the afternoon. Seas 2 ft. .MON NIGHT...SW 15 kt in the evening becoming W wind 35 kt. Seas 3 ft building to 6 ft. .TUE AND TUE NIGHT...N wind 20 kt. Seas 4 ft. .WED...N wind 15 kt. Seas 3 ft. .THU...NW wind 20 kt. Seas 4 ft. .FRI...N wind 15 kt. Seas 3 ft. $$ PKZ140-201315- Cook Inlet North of Kalgin Island- 316 PM AKST Sun Dec 19 2021 .TONIGHT...N wind 10 kt in the evening becoming variable less than 10 kt. Patchy freezing fog. .MON...Variable wind less than 10 kt becoming NE 10 kt in the afternoon. .MON NIGHT...N wind 10 kt becoming SW after midnight. .TUE...SW wind 15 kt. .TUE NIGHT...NE wind 10 kt. .WED THROUGH FRI...NE wind 10 kt. $$ PKZ141-201315- Kachemak Bay- 316 PM AKST Sun Dec 19 2021 ...GALE WARNING MONDAY NIGHT... .TONIGHT...W wind 10 kt in the evening becoming variable less than 10 kt. Seas 2 ft. .MON...Variable wind less than 10 kt becoming SW 10 kt in the afternoon. Seas 2 ft. .MON NIGHT...SW wind 15 kt in the evening becoming W 35 kt...then diminishing to 25 kt after midnight. Seas 4 ft in the evening building to 10 ft...then subsiding to 6 ft after midnight. .TUE AND TUE NIGHT...N wind 15 kt. Seas 3 ft. .WED...N wind 10 kt. Seas 2 ft. .THU...NW wind 15 kt. Seas 2 ft. .FRI...N wind 10 kt. Seas 2 ft. $$
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 Dec 16, 5:17 PM AKST, 10 hours 31 minutes earlier.
Area forecast discussion, Dec 16, 5:17 PM AKST, 10 hours 31 minutes before
Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 517 PM AKST Thu Dec 16 2021 .ANALYSIS AND UPPER LEVELS... Upper level flow is progressive, but amplified. Multiple out of phase short-wave troughs are tracking from the eastern Bering Sea and Southwest Alaska into Southcentral Alaska and the Gulf of Alaska. At the surface, a weak low is positioned over the far northern Bering Sea with an occluded front draped across Southwest Alaska and into the western Gulf where a weak triple point low has developed east of Kodiak Island. Widespread light snow is falling ahead of the short-waves and front, from the Southwest interior to Southcentral and Kodiak Island. Temperatures are slowly creeping up as snow moves in, but remain well below freezing across most of southern Alaska. Meanwhile, an occluding low is tracking into the Bering Sea just to the west of Attu Island, way out at the end of the Aleutian chain. The associated frontal system is tracking north and east out ahead of the low, bringing widespread gale force winds and rain to the region. There are likely some small areas of storm force winds near the low center as colder air wraps into the system. && .MODEL DISCUSSION... Models remain in good agreement with handling of large scale features through the weekend. The primary forecast challenge will be the transition of precipitation types over Southwest Alaska as warmer (above freezing) air advects into the region Saturday afternoon through Sunday. && .AVIATION... PANC...Ceiling/vis will hover in the low end VFR to high end MVFR categories with some very light snow remaining in the area through this evening. Then expect conditions to drop overnight as an upper level trough approaches and heavier/steadier snow develops. Snow will quickly end by 15Z Friday, but with weak low level flow and a ridge quickly building in from the west it looks favorable to maintain low ceilings (possibly even some fog). This is always extremely challenging to forecast. For now, have gone with MVFR conditions on Friday, but there is a chance of IFR conditions. && .SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 to 3: Tonight through Sun afternoon)... A frontal boundary in association with a low in the northern Bering Sea continues pushing eastward tonight. A weak, triple point low has formed along this front southeast of Kodiak Island this evening. The low will slowly strengthen as it pushes east across the Gulf towards Southeast Alaska. As a result, light snow is expected to continue across much of Southcentral this evening and overnight. The best chance time to see a steadier light snow for the Anchorage Bowl and Matanuska Valley will be between 12-4 AM before trough passage. Otherwise, expect mostly flurries or brief light snow showers till then. Up to one inch of snow remains expected for the Anchorage Bowl and Matanuska Valley with 1-2 inches on the Anchorage Hillside before all is said and done early Friday morning. For Prince William Sound, expect total snow accumulations of 2 to 5 inches with the highest amounts for eastern Prince William Sound. A transient upper level ridge then moves overhead for Friday/Friday night keeping the weather quiet across Southcentral. Temperatures area-wide Friday will be in the teens with 20s for the Kenai Peninsula with single numbers to near zero for the Copper River Basin where the coldest air will hold on. Some areas of fog are possible throughout Southcentral Friday night into early Saturday morning due to the fresh snow that recently occurred. The one caveat that might hold the fog off is the clouds with the next system will be quickly moving in. Therefore, how much fog occurs will be dependent on how quickly the clouds from the next system move in and how much it radiates out beforehand. The next system is expected to move into Kodiak first Friday night into Saturday with a potential rain/snow mix though it could end up being all snow with little to no accumulation as temperatures will be near freezing to even slightly above. This same system will spread another round of light snow into Southcentral Saturday with mostly one inch amounts, with isolated up to 2 inch amounts mostly in the Susitna Valley. Most of the moisture isn't expected to move past the Chugach Mountains keeping most of eastern Prince William Sound dry. Winds are expected to increase for Thompson Pass, Seward, Whittier, and the Valdez gap wind areas on Saturday into Sunday as the pressure gradient increases. Other than that, expect quiet conditions with mostly clear to partly cloudy skies for Saturday night through Sunday afternoon. && .SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)... Some snow showers persist in southwest mainland Alaska this evening, but fog may become a bigger issue. The next front moves in later tonight to the Kuskokwim Delta coast and will bring more snow and even some blowing snow...especially near Hooper Bay. While this system is much warmer than the previous one, it does look like precipitation type will remain all snow for the Kuskokwim Delta and Bristol Bay. The challenge comes in with the next system on Saturday night into Sunday. This system is much warmer and will increase temperatures aloft to above freezing. The question is whether the precipitation will end before conditions become favorable for freezing rain, or if it will be snow for the whole time. This will become a focus of the forecast over the next few days. && .SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)... The low in the western Bering Sea and associated front will continue to bring warmer air into the Bering as well as some storm force winds. This storm will bring rain and snow across the region as it tracks eastward through Saturday night. The next low is stronger and warmer and will enter the western Bering Sea Friday night as a warm upper level ridge builds over the central Bering Sea. This will bring in the strong south to southwest flow aloft over the area and the warmer air. Rain will be the predominant precipitation type for the Aleutians and Alaska Peninsula with this system Saturday into Sunday. && .MARINE (Days 3 through 5: Sunday through Tuesday)... Gulf of Alaska: Winds remain generally less than 35 kt and waves less than 20 ft for Sunday and Monday as weak low pressure meanders in the far northern Gulf with high pressure ridging spreading across the remainder of the area. By Tuesday, expect a new low to develop over the northern Gulf and exit towards Southeast AK by Tuesday evening as it deepens. Forecast confidence for this system is lower than for the generally calm conditions expected through Monday. The greatest uncertainty will be for the strength of northwest gap winds developing in the wake of the low on Tuesday, with winds increasing mainly to gale force expected. However, there is a chance for the low to deepen faster than expected, and winds up to storm force on Tuesday and subsequently higher waves above 20 ft over mainly parts of the western Gulf cannot be ruled out at this time. Bering Sea: A Kamchatka low exiting into the Chukchi Sea will continue to bring its associated gale force front across the central Bering/Aleutians on Sunday, with the winds generating waves of 20 to 30 feet initially over the majority of the Bering Sea. To the west, a separate North Pacific low will cross the Western Aleutians and into the Bering, sending more southerly winds up to gale force and 20 to 30 ft seas briefly across the Western Bering on Sunday. The frontal system and low entering the Bering off to the west will both weaken below gale force by early Monday, with high pressure ridging moving into the southern Bering and allowing predominant winds and waves across the majority of the region to drop below 35 kt and 20 ft respectively for Monday. Another North Pacific low will approach the Western Aleutians from the south by late Monday night. Forecast confidence decreases by this point in time, with uncertainty for the track and strength of the low. Nevertheless, expect this low to be gale force or perhaps higher, with higher easterly winds/waves spreading into the central and western Bering/Aleutians on Tuesday. && .LONG TERM FORECAST (Days 4 through 7/Monday through Thursday)... Questions are popping up almost immediately for the first part of the extended period, largely hinging on the fate of a shortwave trough in the eastern Bering poised to ride over top of and consequently flatten a very amplified Pacific ridge extending well into mainland AK at the same point in time on Monday. Deep warm/moist southwest flow upstream from this ridge should also be giving quite a warm-up to virtually the entire state, with the exception of Southeast AK. The other exception will be for the lowest elevations of Southcentral, where cold air entrenched over valleys will be stubborn to move or mix out with winds in the low levels not sufficiently strong enough to erode the colder air in place. To the west, a weakening frontal system will cross into Southwest and over the Alaska Peninsula, with the winds ahead of the front likely to erode more of the cold air in place, resulting in potential for mixed precipitation before colder air rushes in behind the front and turns everything over to all snow by Monday night. The overall picture beyond Monday is muddier, with models diverging with the handling of the aforementioned shortwave as it rides over and temporarily weakens the Pacific ridge on Tuesday. The 12z GFS and GEFS ensembles are still by far the most gung-ho with the amplitude of the trough, depicting a fairly deep low developing in the northern Gulf in response to the likewise sharper/stronger upper wave digging into Southcentral by Tuesday morning. With strong cold advection materializing behind the deepening Gulf low and strong ridging moving back over Southwest, this would imply a significant northwest gap wind event developing for the North Gulf Coast and Alaska Peninsula on Tuesday. However, other solutions are much less aggressive with the strengthening of the trough and keep the track farther north, casting significant doubt on this scenario and keeping the consensus that the operational GFS is overdoing it for this system. Even so, it continues to look likely that much of Southcentral will get a round of snow late Monday to early Tuesday as the wave moves across and as winds strengthen from the west. Beyond Tuesday, there remains good consensus that the Pacific ridge will bounce back in strength quickly farther west over the eastern Bering/Aleutians as the shortwave trough and attendant low exit towards Southeast AK on Wednesday. This will extend the period of warmth for much of the Aleutians through Wednesday and Thursday, with cool temperatures favored downstream from the ridge over much of Southcentral. Any further details really start to fall apart by this point, with even poorer agreement and run to run consistency for another possible system traversing the Bering Tuesday/Wednesday and then shifting somewhere toward the western mainland by Thursday. && .AFC WATCHES/WARNINGS/ADVISORIES... PUBLIC...NONE. MARINE...Storm: 177 178 411. Gale: 155 165 170 172-176 179-185 412-414. && SYNOPSIS AND MODEL DISCUSSION...SEB SOUTHCENTRAL ALASKA...MV SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...EZ MARINE/LONG TERM...AS
The office that day
Everything else NWS Anchorage, AK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 16, 3:23 PM AKST | Small Craft Advisory | AFC | 72 hr | |
| Dec 16, 3:39 PM AKST | Gale Warning | AFC | 12 hr | |
| Dec 16, 3:47 PM AKST | Gale Warning | AFC | 36 hr | |
| Dec 16, 3:47 PM AKST | Storm Warning | AFC | 36 hr | |
| Dec 17, 3:54 AM AKST | Gale Warning | AFC | 24 hr | |
| Dec 17, 4:02 AM AKST | Storm Warning | AFC | 11 hr | |
| Dec 17, 2:52 PM AKST | Gale Warning | AFC | 63 hr | |
| Dec 17, 2:53 PM AKST | Brisk Wind Advisory | AFC | 13 hr | |
| Dec 17, 2:53 PM AKST | Small Craft Advisory | AFC | 13 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.