A low tracked across the eastern Bering Sea and intensified as it crossed the Aleutian Range and into the northern Gulf of Alaska. In the peak of the storm the low was just southeast of Prince William Sound at around 982 mb with the high near the Yukon Delta at 940 mb. In addition to the strong pressure gradient, unseasonably cold air was associated with this system enhancing the winds.
On April 10, a new low in the Bering Sea sent a front over Southwest mainland Alaska which brought blizzard conditions to the Kuskokwim Delta as the new front pushed into the arctic airmass.
While temperatures were nothing nearing a warning level, many locations across Southern Alaska (and the Interior) saw daily record low temperatures with the high pressure.

High Wind in NERN P.W. SND, ALASKA
From 08-APR-21 20:00:00 to 09-APR-21 08:30:00 (AKST-9)
Magnitude: 82.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The Thompson Pass RWIS site (RHRA2) reported over 12 hours of over 75 mph wind gusts with the peak being 94 mph around 6 AM April 9th.

High Wind in KODIAK PENINSULA, ALASKA
From 08-APR-21 13:55:00 to 08-APR-21 21:00:00 (AKST-9)
Magnitude: 75.00 MG
Crop damage: 0.00K
Reported by: Mesonet

The Gull Island weather station located in the Kodiak Boat Harbor and run by the Alaska Marine Exchange, reported a wind gust of 86 mph around 3 PM AKDT. The Kodiak Airport (PADQ), located south of the Gull Island station, had its strongest wind of 64 mph at 7:24 PM AKDT. Some damage to floats around the harbor was reported the the Harbormaster.

High Wind in NERN P.W. SND, ALASKA
From 09-APR-21 02:53:00 to 09-APR-21 07:56:00 (AKST-9)
Magnitude: 74.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

The Valdez Airport AWOS (PAVD) reported wind gusts to 77 mph at 3:53 AM AKDT and a higher one of 85 mph at 8:56 AM AKDT. This wind event brought warning level gusts to both Thompson Pass and into the town of Valdez.

Blizzard in BRISTOL BAY, ALASKA
From 11-APR-21 04:55:00 to 11-APR-21 15:10:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The central inland area of the Bristol Bay region experienced blizzard conditions for much of the day on April 11th.
Koliganek (PAJZ) was in continuous blizzard conditions from around 5 AM AKDT through 3 PM AKDT, but likely past this time since the ASOS stopped reporting at 3 PM. The peak of this event was around Noon AKDT with Zero visibility and East-Southeast winds 49 mph with gusts to 66 mph.
New Stuyahok (PANW) also had continuous blizzard conditions from around 10 AM until 3 PM AKDT. Peak conditions there was 1/4SM visibility in snow and blowing snow with winds gusting to 54 mph.

Blizzard in KUSKOKWIM DELTA, ALASKA
From 09-APR-21 19:40:00 to 10-APR-21 07:45:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Toksook Bay (PAOO) reported blizzard conditions from 8:40 PM AKDT until 3:15 AM AKDT April 10th. There were numerous observations of winds gusts from 42 to 45 mph reducing visibility to 1/4SM or less in heavy snow and blowing snow.
Hooper Bay (PAHP) also had blizzard conditions with gusts as high as 38 mph and 1/4SM visibility in snow and blowing snow.