A rather stagnant was in place for the last couple days of November over the Bering Sea and Aleutian Islands. Arctic air remained entrenched over the Bering including the Eastern Aleutians. This pattern would keep the Arctic air in place with the same northerly flow throughout this time frame. However, a storm system moved northward from the North Pacific met up with this Arctic air and resulted in hazardous weather conditions (snow and blowing snow/blizzard conditions) especially for the Eastern Aleutians. The effects didn't end here though as the system spread northeastward and impacted portions of Southcentral Alaska as well.

Heavy Snow in KENAI PENINSULA, ALASKA
From 28-NOV-21 10:23:00 to 28-NOV-21 10:23:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

An extremely localized band of snow formed on the backside of a departing low pressure system resulting in Arctic air moving over southern Cook Inlet. This resulted
in an intense but localized snow event for the Homer to Anchor Point areas. One of the trained weather spotters just outside of Homer reported 22.5 inches from this event which occurred between 11 pm the night of November 27th and 10 am the morning of November 28th. One of the ASOS stations in Homer reported one half mile to one and one half mile visibility throughout the aforementioned time frame. Some reports came in from in town by Homer Police Department reporting up to 6 inches. They also emphasized it was difficult to measure with lots of drifting. Also mentioned that lots of snow built up on sides of houses in Homer. Area webcams confirmed this as well. Another spotter about a half mile from Anchor Point estimated close to a foot of new snow overnight the 27th into 28th of November based on what was on cars, driveways, and trees. Yet another spotter that was plowing roads did not think there was more
than 5 inches in the town of Homer since 11 PM the night of November 27th.

Heavy Snow in KENAI PENINSULA, ALASKA
From 30-NOV-21 04:30:00 to 30-NOV-21 23:59:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter in Homer reported approximately 8 inches of new snow.

Cold/Wind Chill in KUSKOKWIM DELTA, ALASKA
From 30-NOV-21 14:55:00 to 30-NOV-21 23:59:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Quinhagak station reported -41 degree to -42 degree wind chills for over 3 hours from 3pm until 9 pm on November 30th along with 15 mph winds.

Cold/Wind Chill in NERN P.W. SND, ALASKA
From 28-NOV-21 05:07:00 to 28-NOV-21 19:56:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

One of the observations sites in Thompson Pass recorded northeast winds around 30kts with gusts up to 33kts between 9 am and 3 pm on the 28th of November. This combined with temperatures -5 to -10 degrees below zero resulted in very cold wind chills of -40 to -42 degrees.

Cold/Wind Chill in KUSKOKWIM DELTA, ALASKA
From 28-NOV-21 19:04:00 to 30-NOV-21 12:05:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Wind chills dipped below -40 degrees in many locations, including Quinhagak, Bethel, Kipnuk, and Eek. However, no stations recorded wind chills below -51 degrees by 2 pm on November 29th. The Wind Chill Warning was downgraded to an advisory around noon on the 29th of November as especially Quinhagak was meeting advisory level criteria of 15 mph winds and -40 degree wind chills most of the day and into the evening on the 29th of November. Wind chills fell below -45 degrees and as low as -48 degrees at Bethel between 8 pm on the 28th of November and 3 am on the 29th of November. Toksook Bay also saw wind chills briefly dip to -40 degrees around 1 pm on November 29th. Kwethluk saw wind chills -40 degrees and colder beginning around 5 am on the 28th of November which continued intermittently through around 5 pm on the 28th of November.

Blizzard in EASTERN ALEUTIANS, ALASKA
From 27-NOV-21 21:10:00 to 29-NOV-21 05:39:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Observations in the area recorded very strong winds at Nikolski. One of the observation sites recorded east winds of 51kts with gusts up to 64 kts around 9 AM on the 28th of November. Another observation at a higher elevation and outside of the town recorded a peak wind gust to 76kts around the same time on the 28th. Visibilities at Dutch Harbor dropped to 2 miles from 10:56am-5:56pm on November 28th due to blowing snow, with a brief period of 1 mile visibility from 3:03-3:16pm. On November 30th, one of the NWS employees reached out to Unalaska Public Safety and reported the following. A person in the public confirmed conditions were bad on Sunday, and advised they send Nixle alerts to the public with all updated WWA information with each issuance. They mentioned visibility was reduced to less than half mile at times. Another report came in saying conditions were BAD.  There was one other report that came in saying that visibility was intermittent all day with blowing snow, sometimes as low as 30ft. Snow was also very heavy with no fluff factor.

Winter Storm in ALASKA PENINSULA, ALASKA
From 27-NOV-21 21:10:00 to 30-NOV-21 23:59:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Cold Bay observations recorded gusty northwesterly winds around 35kts all night on the 29th of November into the 30th of November with visibility more often than not down around one half mile between 12-5 am on November 30th. Webcam images also showed very bad conditions in and around Cold Bay.