Alert archive / Alaska / Gale Warnings in 2020
Gale Warning 746, NWS Anchorage, AK
NWS Anchorage, AK issued this gale warning at Dec 1, 2020, 3:51 PM AKST. It was in force for 36 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Dec 1, 2020, 3:51 PM AKST (00:51 UTC)
- Expired
- Dec 3, 2020, 4:00 AM AKST
- In force
- 36 hr
- Issued by
- NWS Anchorage, AK
The text
As transmitted.
250 FZAK51 PAFC 020051 CWFAER Coastal Waters Forecast National Weather Service Anchorage Alaska 351 PM AKST Tue Dec 1 2020 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. PKZ197-021345- 351 PM AKST Tue Dec 1 2020 .SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+ COOK INLET... A front over the western Gulf will move eastward through the eastern Gulf while weakening through Wed night. An area of low pressure over the northern Gulf will persist through Thursday. $$ PKZ119-021345- Cape Suckling to Cape Cleare- 351 PM AKST Tue Dec 1 2020 ...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT... .TONIGHT...S wind 30 kt. Seas 18 ft. .WED...SE wind 25 kt. Seas 16 ft. Rain showers. .WED NIGHT...SW wind 20 kt. Seas 15 ft. .THU...SW wind 15 kt. Seas 14 ft. .THU NIGHT...N wind 15 kt. Seas 10 ft. .FRI...Variable wind 10 kt. Seas 8 ft. .SAT...E wind 25 kt. Seas 15 ft. .SUN...SE wind 25 kt. Seas 15 ft. $$ PKZ120-021345- Cape Cleare to Gore Point- 351 PM AKST Tue Dec 1 2020 ...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT... .TONIGHT...S wind 25 kt. Seas 17 ft. Rain showers. .WED...S wind 20 kt. Seas 15 ft. .WED NIGHT...SW wind 25 kt. Seas 13 ft. .THU...W wind 20 kt. Seas 13 ft. .THU NIGHT...Variable wind 10 kt. Seas 9 ft. .FRI...NE wind 15 kt. Seas 8 ft. .SAT...NE wind 20 kt. Seas 8 ft. .SUN...E wind 20 kt. Seas 10 ft. $$ PKZ121-021345- Resurrection Bay- 351 PM AKST Tue Dec 1 2020 ...SMALL CRAFT ADVISORY TONIGHT... .TONIGHT...S wind 25 kt...strongest south of Caines Head. Gusts to 35 kt south of Caines Head. Seas 5 ft...highest south of Caines Head. Widespread rain showers. .WED...S wind 20 kt diminishing to 10 kt in the afternoon. Seas 5 ft subsiding to 2 ft in the afternoon. .WED NIGHT...Variable wind less than 10 kt. Seas 2 ft. .THU...Variable wind less than 10 kt. Seas 2 ft. .THU NIGHT...N wind 15 kt. Seas 3 ft. .FRI...N wind 15 kt. Seas 3 ft. .SAT...N wind 10 kt. Seas 2 ft. .SUN...N wind 15 kt. Seas 2 ft. $$ PKZ125-021345- Prince William Sound- 351 PM AKST Tue Dec 1 2020 ...SMALL CRAFT ADVISORY THROUGH WEDNESDAY... .TONIGHT...SE wind increasing to 30 kt. Seas building 6 ft. Widespread rain showers. .WED...SE wind 30 kt becoming S 15 kt in the afternoon. Seas 6 ft subsiding to 4 ft in the afternoon. Rain showers. .WED NIGHT...SW wind 20 kt. Seas 4 ft. .THU...S wind 15 kt. Seas 3 ft. .THU NIGHT...N wind 15 kt. Seas 2 ft. .FRI...N wind 10 kt. Seas 2 ft. .SAT...NE wind 15 kt. Seas 3 ft. .SUN...E wind 20 kt. Seas 3 ft. $$ PKZ126-021345- Port Valdez- 351 PM AKST Tue Dec 1 2020 .TONIGHT...Variable wind less than 10 kt. Seas 2 ft. Widespread rain showers. .WED...Variable wind less than 10 kt. Seas 2 ft. Widespread rain showers. .WED NIGHT...Variable wind less than 10 kt. Seas 2 ft. Rain with snow. .THU...Variable wind less than 10 kt. Seas 2 ft. .THU NIGHT...E wind 10 kt. Seas 2 ft. .FRI THROUGH SUN...E wind 10 kt. Seas 2 ft. $$ PKZ127-021345- Valdez Narrows- 351 PM AKST Tue Dec 1 2020 .TONIGHT...NE wind 15 kt diminishing to 10 kt after midnight. Seas 2 ft. Widespread rain showers. .WED...N wind 10 kt becoming SW in the afternoon. Seas 2 ft. Widespread rain showers. .WED NIGHT...SW wind 10 kt. Seas 2 ft. Rain with snow. .THU...SW wind 10 kt. Seas 2 ft. .THU NIGHT...NE wind 20 kt. Seas 3 ft. .FRI...NE wind 20 kt. Seas 3 ft. .SAT THROUGH SUN...NE wind 15 kt. Seas 3 ft. $$ PKZ128-021345- Valdez Arm- 351 PM AKST Tue Dec 1 2020 ...SMALL CRAFT ADVISORY TONIGHT... .TONIGHT...NE wind 20 kt except SE wind 30 kt near the Sound. Seas 6 ft. Widespread rain showers. .WED...SE wind 20 kt becoming SW 10 kt in the afternoon. Seas 6 ft subsiding to 2 ft in the afternoon. Widespread rain showers. .WED NIGHT...SW wind 10 kt. Seas 2 ft. Rain. .THU...SW wind 10 kt. Seas 2 ft. .THU NIGHT...N wind 15 kt. Seas 3 ft. .FRI THROUGH SUN...NE wind 15 kt. Seas 3 ft. $$ PKZ129-021345- Passage Canal- 351 PM AKST Tue Dec 1 2020 .TONIGHT...E wind 20 kt diminishing to 10 kt after midnight. Seas 2 ft. Widespread rain showers. .WED...E wind 10 kt in the morning becoming variable less than 10 kt. Seas 2 ft. Rain showers. .WED NIGHT...E wind 10 kt in the evening becoming variable less than 10 kt. Seas 2 ft. .THU...Variable wind less than 10 kt. Seas 2 ft. .THU NIGHT...W wind 15 kt. Seas 2 ft. .FRI...E wind 15 kt. Seas 2 ft. .SAT THROUGH SUN...Variable wind less than 10 kt. Seas 2 ft. $$ PKZ130-021345- West of Barren Islands including Kamishak Bay- 351 PM AKST Tue Dec 1 2020 ...GALE WARNING WEDNESDAY NIGHT... .TONIGHT...W wind 20 kt. Seas 6 ft. .WED...W wind 30 kt. Seas 8 ft. Freezing spray. .WED NIGHT...W wind 35 kt. Seas 9 ft. Freezing spray. .THU...NW wind 30 kt. Seas 8 ft. .THU NIGHT...NW wind 20 kt. Seas 5 ft. .FRI...N wind 20 kt. Seas 5 ft. .SAT...N wind 25 kt. Seas 5 ft. .SUN...NE wind 20 kt. Seas 5 ft. $$ PKZ131-021345- Barren Islands East- 351 PM AKST Tue Dec 1 2020 ...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT... .TONIGHT...S wind 25 kt. Seas 16 ft. Rain showers. .WED...W wind 20 kt. Seas 13 ft. .WED NIGHT...W wind 25 kt. Seas 12 ft. Freezing spray. .THU...NW wind 25 kt. Seas 12 ft. .THU NIGHT...NW wind 20 kt. Seas 9 ft. .FRI THROUGH SUN...E wind 20 kt. Seas 8 ft. $$ PKZ132-021345- Marmot Island to Sitkinak- 351 PM AKST Tue Dec 1 2020 ...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT... .TONIGHT...SW wind 25 kt. Seas 16 ft. .WED...W wind 20 kt. Seas 13 ft. .WED NIGHT...W wind 20 kt. Seas 11 ft. .THU...NW wind 20 kt. Seas 10 ft. .THU NIGHT...N wind 15 kt. Seas 9 ft. .FRI THROUGH SUN...E wind 20 kt. Seas 9 ft. $$ PKZ136-021345- Chiniak Bay- 351 PM AKST Tue Dec 1 2020 .TONIGHT...S wind 20 kt becoming NW 10 kt after midnight. Seas 3 ft. .WED...W wind 10 kt. Seas 2 ft. .WED NIGHT...W wind 10 kt. Seas 2 ft. .THU AND THU NIGHT...NW wind 15 kt. Seas 2 ft. .FRI...N wind 15 kt. Seas 3 ft. .SAT THROUGH SUN...E wind 10 kt. Seas 3 ft. $$ PKZ137-021345- Marmot Bay- 351 PM AKST Tue Dec 1 2020 .TONIGHT...SW wind 20 kt. Seas 4 ft. .WED...W wind 20 kt. Seas 4 ft. .WED NIGHT...W wind 15 kt. Seas 3 ft. .THU...NW wind 10 kt. Seas 1 ft. .THU NIGHT...NW wind 15 kt. Seas 2 ft. .FRI...N wind 15 kt. Seas 3 ft. .SAT THROUGH SUN...E wind 10 kt. Seas 3 ft. $$ PKZ138-021345- Shelikof Strait- 351 PM AKST Tue Dec 1 2020 ...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT... .TONIGHT...W wind 20 kt. Seas 5 ft. .WED...W wind 25 kt. Seas 6 ft. Freezing spray. .WED NIGHT...W wind 25 kt. Seas 6 ft. Freezing spray. .THU...NW wind 25 kt. Seas 5 ft. .THU NIGHT...N wind 15 kt. Seas 3 ft. .FRI THROUGH SUN...NE wind 20 kt. Seas 5 ft. $$ PKZ139-021345- Cook Inlet Kalgin Island to Point Bede- 351 PM AKST Tue Dec 1 2020 ...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT... .TONIGHT...SE wind 25 kt becoming SW 15 kt after midnight. Seas 6 ft subsiding to 4 ft after midnight. Rain showers. .WED...SW wind 20 kt increasing to 30 kt in the afternoon. Seas 7 ft. Freezing spray. .WED NIGHT...SW wind 30 kt. Seas 8 ft subsiding to 5 ft after midnight. Freezing spray. .THU AND THU NIGHT...N wind 20 kt. Seas 5 ft. .FRI THROUGH SUN...NE wind 20 kt. Seas 5 ft. $$ PKZ140-021345- Cook Inlet North of Kalgin Island- 351 PM AKST Tue Dec 1 2020 ...SMALL CRAFT ADVISORY WEDNESDAY... .TONIGHT...E wind 10 kt. Seas 3 ft. Rain showers. .WED...SW wind 25 kt. Seas 6 ft. Freezing spray. Snow. .WED NIGHT...S wind 20 kt. Seas 5 ft subsiding to 3 ft after midnight. Freezing spray. .THU AND THU NIGHT...N wind 15 kt. Seas 3 ft. .FRI THROUGH SAT...N wind 15 kt. Seas 4 ft. .SUN...N wind 20 kt. Seas 5 ft. $$ PKZ141-021345- Kachemak Bay- 351 PM AKST Tue Dec 1 2020 ...SMALL CRAFT ADVISORY WEDNESDAY NIGHT... .TONIGHT...SE wind 20 kt becoming SW 10 kt after midnight. Seas 3 ft. Rain and snow. .WED...SW wind 20 kt. Seas 6 ft. Freezing spray. Snow. .WED NIGHT...SW wind 25 kt. Seas 6 ft. Freezing spray. Snow. .THU...NW wind 15 kt. Seas 4 ft. .THU NIGHT...N wind 15 kt. Seas 2 ft. .FRI THROUGH SUN...NE wind 15 kt. Seas 3 ft. $$
3 follow-up statements
685 FZAK51 PAFC 021313 CWFAER Coastal Waters Forecast National Weather Service Anchorage Alaska 413 AM AKST Wed Dec 2 2020 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. PKZ197-030145- 413 AM AKST Wed Dec 2 2020 .SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+ COOK INLET... A trough in the northern Gulf lifts inland Wed night. Weak low pressure remains over the Gulf through Thu night. $$ PKZ119-030145- Cape Suckling to Cape Cleare- 413 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH THURSDAY... .TODAY...S wind 25 kt. Seas 16 ft. Rain showers. .TONIGHT...SW wind 25 kt. Seas 16 ft. .THU...SW wind 20 kt in the morning becoming variable 10 kt. Seas 14 ft. .THU NIGHT...Variable wind 10 kt. Seas 10 ft. .FRI...NE wind 20 kt. Seas 8 ft. .SAT...N wind 40 kt. Seas 12 ft. .SUN...SE wind 45 kt. Seas 26 ft. $$ PKZ120-030145- Cape Cleare to Gore Point- 413 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH THURSDAY... .TODAY...S wind 20 kt. Seas 15 ft. .TONIGHT...W wind 30 kt. Seas 13 ft. .THU...W wind 25 kt in the morning becoming variable 10 kt. Seas 13 ft. .THU NIGHT...NE wind 15 kt. Seas 9 ft. .FRI...NE wind 20 kt. Seas 8 ft. .SAT...N wind 40 kt. Seas 11 ft. .SUN...E wind 40 kt. Seas 23 ft. $$ PKZ121-030145- Resurrection Bay- 413 AM AKST Wed Dec 2 2020 .TODAY...S wind 20 kt. Seas 4 ft. Widespread rain showers. .TONIGHT...N wind 20 kt. Seas 4 ft. Freezing spray. .THU...N wind 20 kt. Seas 4 ft. Freezing spray. .THU NIGHT...N wind 10 kt. Seas 2 ft. .FRI THROUGH SUN...N wind 15 kt. Seas 3 ft. $$ PKZ125-030145- Prince William Sound- 413 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY TODAY... .TODAY...SE wind 25 kt. Seas 5 ft. Widespread rain showers. .TONIGHT...SW wind 20 kt. Seas 4 ft. Snow and rain showers. .THU...SW wind 10 kt becoming SE 15 kt in the afternoon. Seas 3 ft. .THU NIGHT...NE wind 15 kt. Seas 3 ft. .FRI...N wind 15 kt. Seas 3 ft. .SAT...N wind 20 kt. Seas 4 ft. .SUN...E wind 30 kt. Seas 6 ft. $$ PKZ126-030145- Port Valdez- 413 AM AKST Wed Dec 2 2020 .TODAY...Variable wind less than 10 kt. Seas 2 ft. Widespread rain showers. .TONIGHT...Variable wind less than 10 kt. Seas 2 ft. Snow and rain showers. .THU...Variable wind less than 10 kt. Seas 2 ft. Snow. .THU NIGHT...E wind 10 kt. Seas 2 ft. .FRI THROUGH SUN...NE wind 15 kt. Seas 3 ft. $$ PKZ127-030145- Valdez Narrows- 413 AM AKST Wed Dec 2 2020 .TODAY...SW wind 10 kt. Seas 2 ft. Widespread rain showers. .TONIGHT...SW wind 10 kt. Seas 2 ft. Snow and rain showers. .THU...Variable wind 10 kt. Seas 2 ft. Snow. .THU NIGHT...NE wind 20 kt. Seas 3 ft. .FRI THROUGH SUN...NE wind 20 kt. Seas 3 ft. $$ PKZ128-030145- Valdez Arm- 413 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY TODAY... .TODAY...SE wind 25 kt becoming SW wind 15 kt in the afternoon. Seas 5 ft subsiding to 3 ft in the afternoon. Widespread rain showers. .TONIGHT...SW wind 10 kt becoming SW wind 15 kt after midnight. Seas 2 ft. Snow and rain showers. .THU...Variable wind 10 kt. Seas 2 ft. .THU NIGHT...NE wind 15 kt. Seas 3 ft. .FRI THROUGH SUN...NE wind 15 kt. Seas 3 ft. $$ PKZ129-030145- Passage Canal- 413 AM AKST Wed Dec 2 2020 .TODAY...E wind 20 kt. Seas 3 ft. Widespread rain showers. .TONIGHT...W wind 10 kt increasing to 15 kt after midnight. Seas 2 ft. Freezing spray after midnight. .THU...W wind 15 kt diminishing to 10 kt in the afternoon. Seas 2 ft. Freezing spray in the morning. .THU NIGHT...W wind 10 kt. Seas 2 ft. .FRI THROUGH SAT...W wind 20 kt. Seas 2 ft. .SUN...E wind 20 kt. Seas 3 ft. $$ PKZ130-030145- West of Barren Islands including Kamishak Bay- 413 AM AKST Wed Dec 2 2020 ...GALE WARNING TONIGHT... .TODAY...W wind 30 kt. Seas 9 ft. Freezing spray. .TONIGHT...W wind 35 kt. Seas 10 ft. Freezing spray. .THU...NW wind 30 kt. Seas 8 ft. Freezing spray. .THU NIGHT...N wind 25 kt. Seas 6 ft. .FRI...N wind 30 kt. Seas 10 ft. .SAT...N wind 40 kt. Seas 17 ft. .SUN...N wind 45 kt. Seas 21 ft. $$ PKZ131-030145- Barren Islands East- 413 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH THURSDAY... .TODAY...W wind 25 kt. Seas 13 ft. .TONIGHT...W wind 30 kt. Seas 12 ft. Freezing spray. .THU...NW wind 30 kt. Seas 12 ft. Freezing spray. .THU NIGHT...N wind 20 kt. Seas 9 ft. .FRI...NE wind 20 kt. Seas 9 ft. .SAT...N wind 40 kt. Seas 13 ft. .SUN...E wind 40 kt. Seas 21 ft. $$ PKZ132-030145- Marmot Island to Sitkinak- 413 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH THURSDAY... .TODAY...W wind 25 kt. Seas 13 ft. .TONIGHT...W wind 25 kt. Seas 11 ft. Freezing spray. .THU...NW wind 20 kt. Seas 10 ft. .THU NIGHT...N wind 15 kt. Seas 9 ft. .FRI...NE wind 30 kt. Seas 14 ft. .SAT...NE wind 40 kt. Seas 15 ft. .SUN...E wind 40 kt. Seas 22 ft. $$ PKZ136-030145- Chiniak Bay- 413 AM AKST Wed Dec 2 2020 .TODAY...W wind 10 kt. Seas 2 ft. .TONIGHT...W wind 10 kt. Seas 2 ft. .THU...NW wind 15 kt. Seas 2 ft. Freezing spray. .THU NIGHT...N wind 15 kt. Seas 3 ft. .FRI...N wind 20 kt. Seas 4 ft. .SAT THROUGH SUN...N wind 35 kt. Seas 12 ft. $$ PKZ137-030145- Marmot Bay- 413 AM AKST Wed Dec 2 2020 .TODAY...W wind 20 kt. Seas 4 ft. .TONIGHT...W wind 15 kt. Seas 3 ft. Freezing spray. .THU...NW wind 15 kt diminishing to 10 kt in the afternoon. Seas 2 ft. Freezing spray. .THU NIGHT...N wind 15 kt. Seas 3 ft. .FRI...N wind 20 kt. Seas 3 ft. .SAT THROUGH SUN...N wind 30 kt. Seas 12 ft. $$ PKZ138-030145- Shelikof Strait- 413 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH THURSDAY... .TODAY...W wind 25 kt. Seas 7 ft. Freezing spray. .TONIGHT...NW wind 30 kt. Seas 8 ft. Freezing spray. .THU...NW wind 25 kt. Seas 7 ft. Freezing spray. .THU NIGHT...N wind 20 kt. Seas 6 ft. .FRI...N wind 25 kt. Seas 9 ft. .SAT...NE wind 40 kt. Seas 16 ft. .SUN...N wind 45 kt. Seas 20 ft. $$ PKZ139-030145- Cook Inlet Kalgin Island to Point Bede- 413 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH TONIGHT... .TODAY...SW wind 30 kt. Seas 7 ft. Freezing spray. .TONIGHT...W wind 30 kt. Seas 7 ft subsiding to 5 ft after midnight. Freezing spray. .THU...N wind 20 kt. Seas 3 ft building to 5 ft in the afternoon. Freezing spray. .THU NIGHT...N wind 20 kt. Seas 6 ft. .FRI...N wind 25 kt. Seas 8 ft. .SAT...NE wind 40 kt. Seas 13 ft. .SUN...NE wind 45 kt. Seas 17 ft. $$ PKZ140-030145- Cook Inlet North of Kalgin Island- 413 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY TODAY... .TODAY...S wind 30 kt. Seas 8 ft. .TONIGHT...SW wind 20 kt becoming W 10 kt after midnight. Seas 5 ft subsiding to 3 ft after midnight. Freezing spray. .THU...N wind 10 kt. Seas 3 ft. .THU NIGHT...N wind 15 kt. Seas 3 ft. .FRI...N wind 15 kt. Seas 3 ft. .SAT...NE wind 20 kt. Seas 6 ft. .SUN...NE wind 30 kt. Seas 9 ft. $$ PKZ141-030145- Kachemak Bay- 413 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH TONIGHT... .TODAY...SW wind 15 kt becoming W 25 kt in the afternoon. Seas 4 ft building to 8 ft in the afternoon. Freezing spray. Snow showers. .TONIGHT...SW wind 25 kt. Seas 8 ft. Freezing spray. .THU...W wind 10 kt becoming NE in the afternoon. Seas 6 ft subsiding to 2 ft in the afternoon. .THU NIGHT...NE wind 15 kt. Seas 3 ft. .FRI...N wind 15 kt. Seas 2 ft. .SAT...NE wind 20 kt. Seas 3 ft. .SUN...NE wind 25 kt. Seas 4 ft. $$
591 FZAK51 PAFC 021420 AAA CWFAER Coastal Waters Forecast...UPDATED National Weather Service Anchorage AK 520 AM AKST Wed Dec 2 2020 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. PKZ197-030415- 520 AM AKST Wed Dec 2 2020 .SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+ COOK INLET... A trough in the northern Gulf lifts inland Wed night. Weak low pressure remains over the Gulf through Thu night. $$ PKZ119-030415- Cape Suckling to Cape Cleare- 520 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH THURSDAY... .TODAY...S wind 25 kt. Seas 16 ft. Rain showers. .TONIGHT...SW wind 25 kt. Seas 16 ft. .THU...SW wind 20 kt in the morning becoming variable 10 kt. Seas 14 ft. .THU NIGHT...Variable wind 10 kt. Seas 10 ft. .FRI...NE wind 20 kt. Seas 8 ft. .SAT...N wind 40 kt. Seas 12 ft. .SUN...SE wind 45 kt. Seas 26 ft. $$ PKZ120-030415- Cape Cleare to Gore Point- 520 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH THURSDAY... .TODAY...S wind 20 kt. Seas 15 ft. .TONIGHT...W wind 30 kt. Seas 13 ft. .THU...W wind 25 kt in the morning becoming variable 10 kt. Seas 13 ft. .THU NIGHT...NE wind 15 kt. Seas 9 ft. .FRI...NE wind 20 kt. Seas 8 ft. .SAT...N wind 40 kt. Seas 11 ft. .SUN...E wind 40 kt. Seas 23 ft. $$ PKZ121-030415- Resurrection Bay- 520 AM AKST Wed Dec 2 2020 .TODAY...S wind 20 kt. Seas 4 ft. Widespread rain showers. .TONIGHT...N wind 20 kt. Seas 4 ft. Freezing spray. .THU...N wind 20 kt. Seas 4 ft. Freezing spray. .THU NIGHT...N wind 10 kt. Seas 2 ft. .FRI THROUGH SUN...N wind 15 kt. Seas 3 ft. $$ PKZ125-030415- Prince William Sound- 520 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY TODAY... .TODAY...SE wind 25 kt. Seas 5 ft. Widespread rain showers. .TONIGHT...SW wind 20 kt. Seas 4 ft. Snow and rain showers. .THU...SW wind 10 kt becoming SE 15 kt in the afternoon. Seas 3 ft. .THU NIGHT...NE wind 15 kt. Seas 3 ft. .FRI...N wind 15 kt. Seas 3 ft. .SAT...N wind 20 kt. Seas 4 ft. .SUN...E wind 30 kt. Seas 6 ft. $$ PKZ126-030415- Port Valdez- 520 AM AKST Wed Dec 2 2020 .TODAY...Variable wind less than 10 kt. Seas 2 ft. Widespread rain showers. .TONIGHT...Variable wind less than 10 kt. Seas 2 ft. Snow and rain showers. .THU...Variable wind less than 10 kt. Seas 2 ft. Snow. .THU NIGHT...E wind 10 kt. Seas 2 ft. .FRI THROUGH SUN...NE wind 15 kt. Seas 3 ft. $$ PKZ127-030415- Valdez Narrows- 520 AM AKST Wed Dec 2 2020 .TODAY...SW wind 10 kt. Seas 2 ft. Widespread rain showers. .TONIGHT...SW wind 10 kt. Seas 2 ft. Snow and rain showers. .THU...Variable wind 10 kt. Seas 2 ft. Snow. .THU NIGHT...NE wind 20 kt. Seas 3 ft. .FRI THROUGH SUN...NE wind 20 kt. Seas 3 ft. $$ PKZ128-030415- Valdez Arm- 520 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY TODAY... .TODAY...SE wind 25 kt becoming SW wind 15 kt in the afternoon. Seas 5 ft subsiding to 3 ft in the afternoon. Widespread rain showers. .TONIGHT...SW wind 10 kt becoming SW wind 15 kt after midnight. Seas 2 ft. Snow and rain showers. .THU...Variable wind 10 kt. Seas 2 ft. .THU NIGHT...NE wind 15 kt. Seas 3 ft. .FRI THROUGH SUN...NE wind 15 kt. Seas 3 ft. $$ PKZ129-030415- Passage Canal- 520 AM AKST Wed Dec 2 2020 .TODAY...E wind 20 kt. Seas 3 ft. Widespread rain showers. .TONIGHT...W wind 10 kt increasing to 15 kt after midnight. Seas 2 ft. Freezing spray after midnight. .THU...W wind 15 kt diminishing to 10 kt in the afternoon. Seas 2 ft. Freezing spray in the morning. .THU NIGHT...W wind 10 kt. Seas 2 ft. .FRI THROUGH SAT...W wind 20 kt. Seas 2 ft. .SUN...E wind 20 kt. Seas 3 ft. $$ PKZ130-030415- West of Barren Islands including Kamishak Bay- 520 AM AKST Wed Dec 2 2020 ...GALE WARNING TONIGHT... .TODAY...W wind 30 kt. Seas 9 ft. Freezing spray. .TONIGHT...W wind 35 kt. Seas 10 ft. Freezing spray. .THU...NW wind 30 kt. Seas 8 ft. Freezing spray. .THU NIGHT...N wind 25 kt. Seas 6 ft. .FRI...N wind 30 kt. Seas 10 ft. .SAT...N wind 40 kt. Seas 17 ft. .SUN...N wind 45 kt. Seas 21 ft. $$ PKZ131-030415- Barren Islands East- 520 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH THURSDAY... .TODAY...W wind 25 kt. Seas 13 ft. .TONIGHT...W wind 30 kt. Seas 12 ft. Freezing spray. .THU...NW wind 30 kt. Seas 12 ft. Freezing spray. .THU NIGHT...N wind 20 kt. Seas 9 ft. .FRI...NE wind 20 kt. Seas 9 ft. .SAT...N wind 40 kt. Seas 13 ft. .SUN...E wind 40 kt. Seas 21 ft. $$ PKZ132-030415- Marmot Island to Sitkinak- 520 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH THURSDAY... .TODAY...W wind 25 kt. Seas 13 ft. .TONIGHT...W wind 25 kt. Seas 11 ft. Freezing spray. .THU...NW wind 20 kt. Seas 10 ft. .THU NIGHT...N wind 15 kt. Seas 9 ft. .FRI...NE wind 30 kt. Seas 14 ft. .SAT...NE wind 40 kt. Seas 15 ft. .SUN...E wind 40 kt. Seas 22 ft. $$ PKZ136-030415- Chiniak Bay- 520 AM AKST Wed Dec 2 2020 .TODAY...W wind 10 kt. Seas 2 ft. .TONIGHT...W wind 10 kt. Seas 2 ft. .THU...NW wind 15 kt. Seas 2 ft. Freezing spray. .THU NIGHT...N wind 15 kt. Seas 3 ft. .FRI...N wind 20 kt. Seas 4 ft. .SAT THROUGH SUN...N wind 35 kt. Seas 12 ft. $$ PKZ137-030415- Marmot Bay- 520 AM AKST Wed Dec 2 2020 .TODAY...W wind 20 kt. Seas 4 ft. .TONIGHT...W wind 15 kt. Seas 3 ft. Freezing spray. .THU...NW wind 15 kt diminishing to 10 kt in the afternoon. Seas 2 ft. Freezing spray. .THU NIGHT...N wind 15 kt. Seas 3 ft. .FRI...N wind 20 kt. Seas 3 ft. .SAT THROUGH SUN...N wind 30 kt. Seas 12 ft. $$ PKZ138-030415- Shelikof Strait- 520 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH THURSDAY... .TODAY...W wind 25 kt. Seas 7 ft. Freezing spray. .TONIGHT...NW wind 30 kt. Seas 8 ft. Freezing spray. .THU...NW wind 25 kt. Seas 7 ft. Freezing spray. .THU NIGHT...N wind 20 kt. Seas 6 ft. .FRI...N wind 25 kt. Seas 9 ft. .SAT...NE wind 40 kt. Seas 16 ft. .SUN...N wind 45 kt. Seas 20 ft. $$ PKZ139-030415- Cook Inlet Kalgin Island to Point Bede- 520 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH TONIGHT... .TODAY...SW wind 30 kt. Seas 7 ft. Freezing spray. .TONIGHT...W wind 30 kt. Seas 7 ft subsiding to 5 ft after midnight. Freezing spray. .THU...N wind 20 kt. Seas 3 ft building to 5 ft in the afternoon. Freezing spray. .THU NIGHT...N wind 20 kt. Seas 6 ft. .FRI...N wind 25 kt. Seas 8 ft. .SAT...NE wind 40 kt. Seas 13 ft. .SUN...NE wind 45 kt. Seas 17 ft. $$ PKZ140-030415- Cook Inlet North of Kalgin Island- 520 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY TODAY... .TODAY...S wind 30 kt. Seas 8 ft. .TONIGHT...SW wind 20 kt becoming W 10 kt after midnight. Seas 5 ft subsiding to 3 ft after midnight. Freezing spray. .THU...N wind 10 kt. Seas 3 ft. .THU NIGHT...N wind 15 kt. Seas 3 ft. .FRI...N wind 15 kt. Seas 3 ft. .SAT...NE wind 20 kt. Seas 6 ft. .SUN...NE wind 30 kt. Seas 9 ft. $$ PKZ141-030415- Kachemak Bay- 520 AM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH TONIGHT... .TODAY...SW wind 25 kt. Seas 5 ft building to 8 ft in the afternoon. Snow showers. .TONIGHT...SW wind 25 kt. Seas 8 ft. Freezing spray. .THU...W wind 10 kt becoming NE in the afternoon. Seas 6 ft subsiding to 2 ft in the afternoon. .THU NIGHT...NE wind 15 kt. Seas 3 ft. .FRI...N wind 15 kt. Seas 2 ft. .SAT...NE wind 20 kt. Seas 3 ft. .SUN...NE wind 25 kt. Seas 4 ft. $$
784 FZAK51 PAFC 030016 CWFAER Coastal Waters Forecast National Weather Service Anchorage Alaska 316 PM AKST Wed Dec 2 2020 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. PKZ197-031300- 316 PM AKST Wed Dec 2 2020 .SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+ COOK INLET... A trough over the northern Gulf moves slowly across the eastern Gulf through Thu night. A front from the North Pacific enters the southern Gulf Fri morning. $$ PKZ119-031300- Cape Suckling to Cape Cleare- 316 PM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT... .TONIGHT...SW wind increasing to 25 kt. Seas building to 16 ft. .THU...SW wind 25 kt in the morning becoming variable 10 kt. Seas 16 ft. .THU NIGHT...Variable wind 10 kt. Seas 11 ft. .FRI...E wind 15 kt. Seas 8 ft. .FRI NIGHT...NE wind 15 kt. Seas 7 ft. .SAT...NE wind 40 kt. Seas 12 ft. .SUN...SE wind 45 kt. Seas 26 ft. .MON...S wind 25 kt. Seas 26 ft. $$ PKZ120-031300- Cape Cleare to Gore Point- 316 PM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT... .TONIGHT...W wind 30 kt. Seas 14 ft. .THU...W wind 25 kt diminishing to 15 kt in the afternoon. Seas 14 ft. .THU NIGHT...E wind 15 kt. Seas 10 ft. .FRI...E wind 15 kt. Seas 8 ft. .FRI NIGHT...NE wind 20 kt. Seas 7 ft. .SAT...NE wind 40 kt. Seas 11 ft. .SUN...E wind 40 kt. Seas 23 ft. .MON...S wind 20 kt. Seas 23 ft. $$ PKZ121-031300- Resurrection Bay- 316 PM AKST Wed Dec 2 2020 .TONIGHT...Variable wind less than 10 kt becoming N 20 kt after midnight. Seas 2 ft building to 4 ft after midnight. Freezing spray. .THU...N wind 20 kt. Seas 4 ft. Freezing spray. .THU NIGHT...N wind 10 kt. Seas 2 ft. .FRI...N wind 10 kt. Seas 2 ft. .FRI NIGHT...N wind 15 kt. Seas 3 ft. .SAT THROUGH SUN...N wind 15 kt. Seas 3 ft. .MON...Variable wind less than 10 kt. Seas 2 ft. $$ PKZ125-031300- Prince William Sound- 316 PM AKST Wed Dec 2 2020 .TONIGHT...SW wind 20 kt. Seas 4 ft. and rain. .THU...SW wind 10 kt becoming S 15 kt in the afternoon. Seas 2 ft. .THU NIGHT...NE wind 10 kt increasing to 15 kt after midnight. Seas 2 ft. .FRI AND FRI NIGHT...N wind 15 kt. Seas 3 ft. .SAT...N wind 20 kt. Seas 3 ft. .SUN...E wind 30 kt. Seas 6 ft. .MON...SE wind 20 kt. Seas 4 ft. $$ PKZ126-031300- Port Valdez- 316 PM AKST Wed Dec 2 2020 .TONIGHT...Variable wind less than 10 kt. Seas 2 ft. Snow and rain. .THU...Variable wind less than 10 kt. Seas 2 ft. Snow. .THU NIGHT...E wind 10 kt. Seas 2 ft. .FRI...E wind 10 kt. Seas 2 ft. .FRI NIGHT...E wind 15 kt. Seas 3 ft. .SAT THROUGH SUN...NE wind 15 kt. Seas 3 ft. .MON...NE wind 10 kt. Seas 2 ft. $$ PKZ127-031300- Valdez Narrows- 316 PM AKST Wed Dec 2 2020 .TONIGHT...NE winds becoming SW 10 kt. Seas 2 ft. Snow and rain. .THU...Variable wind 10 kt. Seas 2 ft. Snow. .THU NIGHT...NE wind 20 kt. Seas 3 ft. Freezing spray. .FRI...NE wind 10 kt. Seas 2 ft. .FRI NIGHT...NE wind 20 kt. Seas 3 ft. .SAT THROUGH SUN...NE wind 20 kt. Seas 3 ft. .MON...NE wind 10 kt. Seas 2 ft. $$ PKZ128-031300- Valdez Arm- 316 PM AKST Wed Dec 2 2020 .TONIGHT...SW wind 10 kt becoming SW wind 15 kt after midnight. Seas 2 ft. Snow and rain. .THU...Variable wind 10 kt. Seas 2 ft. .THU NIGHT...NE wind 10 kt increasing to 15 kt after midnight. Seas 3 ft. .FRI...NE wind 10 kt. Seas 2 ft. .FRI NIGHT...NE wind 15 kt. Seas 3 ft. .SAT THROUGH SUN...NE wind 15 kt. Seas 3 ft. .MON...NE wind 10 kt. Seas 2 ft. $$ PKZ129-031300- Passage Canal- 316 PM AKST Wed Dec 2 2020 .TONIGHT...W wind 10 kt increasing to 15 kt after midnight. Gusts to 25 kt near Whittier. Seas 2 ft. Freezing spray. .THU...W wind 15 kt diminishing to 10 kt in the afternoon. Seas 2 ft. Freezing spray. .THU NIGHT...W wind 10 kt. Seas 2 ft. .FRI...W wind 10 kt. Seas 2 ft. .FRI NIGHT...W wind 20 kt. Seas 2 ft. .SAT...W wind 20 kt. Seas 2 ft. .SUN...E wind 20 kt. Seas 3 ft. .MON...E wind 15 kt. Seas 2 ft. $$ PKZ130-031300- West of Barren Islands including Kamishak Bay- 316 PM AKST Wed Dec 2 2020 ...GALE WARNING THROUGH THURSDAY... .TONIGHT...W wind 35 kt. Seas 10 ft. Freezing spray. .THU...NW wind 35 kt diminishing to 25 kt in the afternoon. Seas 9 ft. Freezing spray. .THU NIGHT...N wind 25 kt. Seas 5 ft. Freezing spray. .FRI AND FRI NIGHT...N wind 30 kt. Seas 8 ft. .SAT...N wind 40 kt. Seas 17 ft. .SUN...N wind 45 kt. Seas 21 ft. .MON...NW wind 15 kt. Seas 4 ft. $$ PKZ131-031300- Barren Islands East- 316 PM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT... .TONIGHT...W wind 30 kt. Seas 12 ft. Freezing spray. .THU...NW wind 30 kt. Seas 12 ft. Freezing spray. .THU NIGHT...NW wind 20 kt. Seas 9 ft. .FRI...NE wind 15 kt. Seas 7 ft. .FRI NIGHT...NE wind 20 kt. Seas 8 ft. .SAT...NE wind 40 kt. Seas 13 ft. .SUN...E wind 40 kt. Seas 21 ft. .MON...SW wind 15 kt. Seas 20 ft. $$ PKZ132-031300- Marmot Island to Sitkinak- 316 PM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT... .TONIGHT...W wind 25 kt. Seas 11 ft. Freezing spray. .THU...NW wind 20 kt in the morning becoming variable 10 kt. Seas 10 ft. .THU NIGHT...NE wind 15 kt. Seas 8 ft. .FRI...NE wind 25 kt. Seas 8 ft. .FRI NIGHT...NE wind 25 kt. Seas 12 ft. .SAT...NE wind 40 kt. Seas 15 ft. .SUN...E wind 40 kt. Seas 22 ft. .MON...W wind 20 kt. Seas 19 ft. $$ PKZ136-031300- Chiniak Bay- 316 PM AKST Wed Dec 2 2020 .TONIGHT...W wind 10 kt. Seas 2 ft. .THU...NW wind 15 kt diminishing to 10 kt in the afternoon. Seas 2 ft. .THU NIGHT...N wind 10 kt. Seas 2 ft. .FRI AND FRI NIGHT...NE wind 15 kt. Seas 4 ft. .SAT THROUGH SUN...N wind 35 kt. Seas 12 ft. .MON...Variable wind less than 10 kt. Seas 3 ft. $$ PKZ137-031300- Marmot Bay- 316 PM AKST Wed Dec 2 2020 .TONIGHT...W wind 15 kt. Seas 3 ft. Freezing spray. .THU...NW wind 15 kt diminishing to 10 kt in the afternoon. Seas 2 ft. Freezing spray. .THU NIGHT...N wind 10 kt. Seas 2 ft. .FRI...N wind 10 kt. Seas 3 ft. .FRI NIGHT...NE wind 15 kt. Seas 3 ft. .SAT THROUGH SUN...N wind 30 kt. Seas 12 ft. .MON...W wind 10 kt. Seas 2 ft. $$ PKZ138-031300- Shelikof Strait- 316 PM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY THROUGH THURSDAY... .TONIGHT...NW wind 30 kt. Seas 6 ft. Freezing spray. .THU...NW wind 25 kt. Seas 4 ft. Freezing spray. .THU NIGHT...N wind 20 kt. Seas 3 ft building to 5 ft after midnight. Freezing spray. .FRI AND FRI NIGHT...NE wind 25 kt. Seas 7 ft. .SAT...NE wind 40 kt. Seas 16 ft. .SUN...N wind 45 kt. Seas 20 ft. .MON...W wind 20 kt. Seas 4 ft. $$ PKZ139-031300- Cook Inlet Kalgin Island to Point Bede- 316 PM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY TONIGHT AND THURSDAY NIGHT... .TONIGHT...W wind 30 kt. Seas 8 ft. Freezing spray. .THU...N wind 20 kt. Seas 3 ft building to 5 ft in the afternoon. Freezing spray. .THU NIGHT...N wind 25 kt. Seas 5 ft. Freezing spray. .FRI AND FRI NIGHT...NE wind 30 kt. Seas 8 ft. .SAT...NE wind 40 kt. Seas 13 ft. .SUN...NE wind 45 kt. Seas 17 ft. .MON...NE wind 20 kt. Seas 5 ft. $$ PKZ140-031300- Cook Inlet North of Kalgin Island- 316 PM AKST Wed Dec 2 2020 .TONIGHT...W wind 20 kt. Seas 5 ft subsiding to 3 ft after midnight. Freezing spray. .THU...N wind 15 kt diminishing to 10 kt in the afternoon. Seas 3 ft. .THU NIGHT...N wind 15 kt. Seas 4 ft. Freezing spray. .FRI AND FRI NIGHT...NE wind 15 kt. Seas 4 ft. .SAT...NE wind 20 kt. Seas 6 ft. .SUN...NE wind 30 kt. Seas 9 ft. .MON...NE wind 10 kt. Seas 3 ft. $$ PKZ141-031300- Kachemak Bay- 316 PM AKST Wed Dec 2 2020 ...SMALL CRAFT ADVISORY TONIGHT... .TONIGHT...SW wind 25 kt. Seas 8 ft. Freezing spray. .THU...W wind 10 kt becoming NE in the afternoon. Seas 2 ft. .THU NIGHT...NE wind 15 kt. Seas 2 ft. Freezing spray. .FRI AND FRI NIGHT...N wind 15 kt. Seas 2 ft. .SAT...NE wind 20 kt. Seas 3 ft. .SUN...NE wind 25 kt. Seas 4 ft. .MON...S wind 10 kt. Seas 2 ft. $$
What forecasters said that day
The local office's own words before this gale warning 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 gale warning went out at Dec 1, 5:56 AM AKST, 9 hours 55 minutes earlier.
Area forecast discussion, Dec 1, 5:56 AM AKST, 9 hours 55 minutes before
Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
556 AM AKST Tue Dec 1 2020
.ANALYSIS AND UPPER LEVELS...
A high amplitude trough is in place along an axis that stretches
from the Seward Peninsula south to Bristol Bay while an upper
level ridge extends over the Yukon and British Columbia. On the
west side of this trough, cold air advection with northerly flow
is in place across the Bering. Meanwhile over the Gulf, an
impressive fetch of moisture is being ushered inland across the
northern Gulf coast. While most of this moist southerly flow is
steering over the eastern Gulf and Alaska Panhandle, the
southerly flow also extends across the western Gulf and
Southcentral is seeing ample moisture this morning as well.
Precipitation across northern areas of Southcentral is falling as
snow this morning while coastal locations are seeing rain.
&&
.MODEL DISCUSSION...
Overall model solutions remain in great synoptic agreement
through Thursday, however there is less agreement among the
localized effects. The biggest forecast challenge continues to be
precipitation type across Southcentral (ultimately driven by
localized winds and temperatures). Also, timing of the return of
cold air across Southcentral on Wednesday (including the Mat- Su
Valley and Anchorage Bowl) remains tricky and model solutions
continue to struggle with this, leading to overall lower
confidence on the transition from rain and/or mixed precipitation
back to snow.
&&
.AVIATION...
PANC...The forecast for the next 12 hours is still quite
challenging. Expect Turnagain Arm winds to continue, leading to
low level wind shear at the terminal through late morning as
surface winds are expected to remain out of the north. There is
still potential for a period of freezing rain at the terminal
during the morning hours, though ceilings and vis are expected to
remain VFR. Gusty southeasterly winds are expected to return to
the terminal by the evening hours.
&&
.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2: Today
through Wednesday night)...
The very active stormy pattern continues across Southcentral
Alaska this morning. A developing north-south elongated area of
low pressure is the driver for all of the active weather. As
well-advertised, an unseasonably warm air mass has moved across
all of Southcentral. The warm air is overriding and gradually
eroding the cold air mass still in place over portions of the
area. The warm air has completely eroded the cold air along the
coast, in places like Seward, Homer, Valdez, Portage, and
Whittier. The strong gap flows have warmed temperatures above
freezing in Palmer and Wasilla, and have gotten Gulkana very close
at times. It's a pretty remarkable thing to watch Gulkana's
temperatures fluctuate this morning, depending on whether the
southeast winds are blowing or not.
The aforementioned area of low pressure that is forming near
Shelikof Strait is enhancing the precipitation pattern over the
area, keeping occasionally heavy snow ongoing in Skwentna and the
western Susitna Valley. The Winter Storm Warning for heavy snow
remains in effect there. For the southern Valley, Anchorage, and
the western Kenai Peninsula, the abundant moisture is fighting the
warm south to southeasterly cross-mountain flow, working to both
warm and dry the atmosphere. These two opposing forces are close
to canceling each other out, meaning these areas are seeing some
dry time, and some time with very light precipitation. Cold air in
place in portions of the southern Susitna Valley, such as Willow,
and a cooling northerly wind at the surface in Anchorage and the
western Kenai Peninsula are working to make a vertical atmospheric
profile that is favorable for freezing rain. The warmth and
moisture overriding a reinforced below-freezing air mass below it
are the conditions needed for freezing rain.
For the southern Susitna Valley in areas like Willow, freezing
rain that could accumulate to up to two tenths of an inch of ice
is expected through the morning. For Anchorage, a Winter Weather
Advisory for freezing rain is in effect until noon. The
temperatures in Anchorage are hovering just below freezing, with a
very light to calm wind, but very light precipitation rates.
Thus, the freezing rain, if it can become heavy enough should
quickly warm temperatures above freezing, so any accumulations of
ice this morning will remain very light. If the precipitation
rates stay as they have been, either none or light sprinkles, then
there simply won't be enough freezing rain to warm temperatures
above freezing. Both of these scenarios have the same result: a
light glaze of icing at most.
Persistent strong, onshore flow across the coastal mountains
continues this morning, with storm total precipitation of 5 inches
in Seward expected. This rain combined with melting snow up to
2,500 feet above sea level today and tonight could lead to some
localized flooding, so the Flood Advisory remains in effect
until Wednesday morning.
This afternoon through tonight, temperatures will warm above
freezing everywhere with limited daytime heating as the December
sun is at its weakest point in the year, but moreso attributed to
the continued influx of warm air. There remains some uncertainty
as to whether or not the Turnagain Arm wind will get into town
before tonight. If it does, then the temperatures will warm much
more quickly in the affected areas.
On Wednesday, the cold air will finally begin to make more
progress eastward into Southcentral, as the entire upper level
trough associated with the cold air begins to shift into the area.
There is some disagreement with the timing of when this will
happen, but for most areas, there will be a very anti-diurnal
temperature trend on Wednesday, with the warmest temperatures
early in the morning, then falling throughout the day. The cold
air returning will also allow Anchorage and the Mat Valley to get
a quick inch or two of snow, most likely Wednesday afternoon, but
depending on how fast the cold air returns. It should be through
all of Southcentral Wednesday night. This will work to dry out the
Cook Inlet region, but mountain upslope snow will persist for the
eastern Prince William Sound, including Valdez, Cordova, Thompson
Pass, and the surrounding areas into Thursday morning. This is
because the flow of much colder air, still southwesterly off the
Gulf, will still be taking moisture from the Gulf and slinging it
into the coastal mountains.
&&
.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3/Tuesday
through Thursday)...
An upper-level trough over Southwest Alaska continues bringing
unsettled weather to the region. Widespread snowfall persists
across the mainland through Wednesday afternoon, with the
heaviest snow falling today for Sleetmute and areas east. Snow
accumulations are expected to be from 4-8 inches for these areas
with locally higher amounts. Blowing snow and light snow
accumulations are expected for Nunivak Island and the Kuskokwim
Delta coast tonight into tomorrow morning. Significant cold air
advection behind the trough and lowered sea surface temperatures
allow for heavy freezing spray concerns along the Southwest coast.
Additionally, the Southwest mainland will see lowering
temperatures over the next couple days as the trough moves across
the region. The upper- level wave exits to the northeast by
Wednesday night while a ridge of high pressure sets up over the
Central Bering. This will allow for a drier and clearer pattern
for the Southwest Thursday into Friday.
&&
.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through
3/Tuesday through Thursday)...
An upper-level trough over the Eastern Bering pushes onto the
Southwest coast this afternoon. The main concerns will be
significant cold air advection and a band of heavy precipitation
along the AKPEN behind the trough. Heavy freezing spray will be
confined to the Southwest coast, with light freezing spray
nearing the Pribilof Islands and along the Northern Bering.
Tonight into tomorrow morning, the AKPEN will see periods of heavy
snowfall with accumulations of 5-10 inches along the mountains.
Lowering temperatures along the Aleutian Chain is expected as the
trough continues east and cold air is advected in. Ridging sets up
over the Central Bering by late Tuesday night and will persist
through the forecast period. A North Pacific low enters the
Western Bering late Thursday night. Models are not in great
agreement with this low and will continue to be monitored over the
next couple days.
&&
.MARINE (Days 3 through 5)...
Gulf of Alaska: The remnants of low pressure linger to start
Thursday, but it is on its way out. The Gulf of Alaska then
quiets for the most part. Cooler air filters back into Gulf, which
will cause gusty winds through gaps and passes along the Western
Gulf, including through Kamishak Bay and the Kennedy Entrance.
Wind direction then becomes generally northerly through the
weekend. The Gulf continues to remain quiet with no major weather
systems in our forecast area during this time.
Bering Sea: The Bering starts out quiet with high pressure in
place. Flow then becomes easterly for the weekend and winds will
increase to small craft advisory level. This is due to a couple
weak lows moving through the North Pacific, just south of the
Aleutians. Confidence is not high with the placement of these lows
due poor model guidance, so wind speeds may need some adjusting.
However, we can anticipate no impactful low pressure systems
moving through the Bering.
&&
.LONG TERM FORECAST (Days 3 through 7)...
We are still expecting a pattern shift to occur late this week,
with the weather noticeably changing starting Thursday. Southerly
flow aloft supporting above average temperatures in Southcentral
AK will push off to the east and allow cooler, more seasonable
temperatures to return. Shortwave ridging looks to develop over
Southwest AK. An upper level low should exist in just south of the
Central Aleutians. As we progress into the weekend, a key
difference emerges from yesterday in that model guidance has back
off the shortwave ridge phasing with high pressure in the Western
U.S. There are still hints of it there, but it's more fuzzy now.
Longwave troughing still looks to return to the Bering Sea.
Since models are less agreement than they are yesterday, not much
can be said for starting to focus in on a forecast solution for
the longterm. This means we can only look out a few days at most
to discern specific weather features. Analyzing the long range
today we do know the weather pattern stays busy. So, we can
expect a pattern shift with continued active weather for our
forecast area. Due to significant model discrepancies, that's
about all we can say for now.
&&
.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Flood Advisory: 125.
Winter Weather Advisory: 101, 152, 161.
Winter Storm Warning: 145.
MARINE...Gales: 131. Heavy Freezing Spray:
160, 180, 181. FIRE WEATHER...NONE.
&&
SYNOPSIS AND MODEL DISCUSSION...KO
SOUTHCENTRAL ALASKA...JPW
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...KM
MARINE/LONG TERM...BJBIn the hours before
Local storm report, Dec 1, 10:11 AM AKST, 5 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
1011 AM AKST TUE DEC 1 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0900 AM SNOW 24 WSW WILLOW 61.62N 150.75W
12/01/2020 M10.0 INCH MATANUSKA-SUSITNA AK TRAINED SPOTTER
SNOWFALL RATE CURRENTLY 1 INCH PER HOUR.
&&Local storm report, Dec 1, 10:48 AM AKST, 5 hours 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
1048 AM AKST TUE DEC 1 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1030 AM SNOW 9 ESE SKWENTNA 61.92N 151.17W
12/01/2020 E7.0 INCH MATANUSKA-SUSITNA AK PUBLIC
7 INCHES OF SNOW OR MORE WAS REPORTED FROM
BENTALIT LODGE.
&&
CBLocal storm report, Dec 1, 11:04 AM AKST, 4 hours 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
1104 AM AKST TUE DEC 1 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1035 AM SNOW SKWENTNA 61.99N 151.40W
12/01/2020 M8.0 INCH MATANUSKA-SUSITNA AK TRAINED SPOTTER
8 INCHES OF SNOW WAS REPORTED FROM SKWETNA,
AND THE RIVER NEARBY THE HOME OF THE SPOTTER
IS OVERFLOWED.
&&
CBThe office that day
Everything else NWS Anchorage, AK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 1, 3:51 PM AKST | Small Craft Advisory | AFC | 36 hr | |
| Dec 1, 3:58 PM AKST | Gale Warning | AFC | 12 hr | |
| Dec 1, 3:58 PM AKST | Small Craft Advisory | AFC | 24 hr | |
| Dec 1, 3:58 PM AKST | Heavy Freezing Spray Warning | AFC | 12 hr | |
| Dec 1, 4:01 PM AKST | Winter Weather Advisory | AFC | 33 hr | |
| Dec 2, 3:52 AM AKST | Gale Warning | AFC | 4 days | |
| Dec 2, 3:52 AM AKST | Small Craft Advisory | AFC | 6 days | |
| Dec 2, 3:52 AM AKST | Storm Warning | AFC | 35 hr | |
| Dec 2, 3:59 AM AKST | Heavy Freezing Spray Warning | AFC | 12 hr |
Nearby
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.