A low analyzed at 962 mb and over 500 miles south of the Alaska Peninsula the afternoon of February 8th moved northward and over the Alaska Peninsula at 969 MB by the afternoon on February 9th. It then elongated over southwest Alaska and developed a secondary low near Norton Sound the morning of February 10th. In the Gulf of Alaska the front associated with this low was occluding as it moved northward. As this occluded front moved on shore along the North Gulf Coast it brought strong winds through Turnagain Arm and to higher elevations in the Chugach and Kenai Mountains. Transportable snow in Thompson Pass allowed blizzard conditions to develop in the strong winds. As this system moved through the area it caused Winter Storm conditions to develop in multiple zones from the Pribilof Islands to Thompson Pass near Valdez. That is a distance of nearly 900 miles and warnings were in effect at one time or another for almost this entire distance as the storm progressed. The southwest Alaska coast blizzard warnings did not verify due to the short duration of the blowing snow. However there were numerous locations that did receive a short period of white out conditions in the Kuskokwim Delta region.

Blizzard in PRIBILOF ISLANDS, ALASKA
From 09-FEB-13 05:35:00 to 09-FEB-13 17:53:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

As the low moved into southwest mainland Alaska the pressure gradient tightened over the Pribilof Islands as snow and more cold air was entrained into the area. This resulted in around 12 hours of continuous blizzard conditions in St Paul and 6 hours in St George. The peak of the event was on February 9th at 11:53 AM AKST when St Paul reported 1/16 mile visibility in snow and blowing snow with North winds 40 gusting 46 MPH.

High Wind in ANCHORAGE MUNI TO BIRD CREEK, ALASKA
From 09-FEB-13 10:50:00 to 09-FEB-13 12:20:00 (AKST-9)
Magnitude: 66.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The RWIS wind sensor at McHugh Creek (SMCA2) reported winds over 70 mph from 10:50 AM February 9th through 12:20 PM that day. The highest wind gust was measured at 76 MPH at 11:20 AM. No reports of damage or injuries.

Blizzard in NERN P.W. SND, ALASKA
From 09-FEB-13 07:00:00 to 10-FEB-13 06:00:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The Alaska DOT reported blizzard conditions from 7 AM Saturday, February 9th through 6 AM Sunday, February 10th in Thompson Pass. The peak of this event was around 10 AM Saturday when DOT reported white out conditions in Thompson Pass with <1/4 mile visibility in heavy snow. At that time winds were southeast at 25 gusting 40 mph. No reports of damage or injuries.

Blizzard in ALASKA PENINSULA, ALASKA
From 09-FEB-13 10:01:00 to 09-FEB-13 13:35:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

False Pass (PAKF) began to experience blizzard conditions around 10 AM on February 9th when the visibility was 1/4 mile in heavy snow and southwest winds were gusting to 51 mph. These blizzard conditions were last observed at 1:35 PM that afternoon. Winds in this event were particularly strong with gusts over 60 mph on three separate observations. The strongest wind was a 72 mph gust at 1:35 PM. There were no reports of damage or injuries.