Alaska, 2010

Blizzard in Alaska, February 19 to 21, 2010

February 19 to 21, 2010 · NWS AFG · 3 events in 3 counties and zones

A stationary 1056 mb high 600 miles north of Wrangel Island combined with several weak waves of low pressure that tracked north along the west coast of Alaska to produce a strong pressure gradient along the Arctic coast. An east wind of 25 to 40 mph produced significant blowing and drifting snow.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
3

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS AFG wrote it up.

A stationary 1056 mb high 600 miles north of Wrangel Island combined with several weak waves of low pressure that tracked north along the west coast of Alaska to produce a strong pressure gradient along the Arctic coast. An east wind of 25 to 40 mph produced significant blowing and drifting snow. The moisture that was associated with the low also produced falling snow along much of the western and northern Arctic coast. Blizzard conditions were observed, with the visibility frequently less than one quarter mile. White-out conditions were observed at times. The worst conditions were observed along the western Arctic coast where the blizzard conditions persisted for 48 hours.

Zone 201: According to local law enforcement in the village of Atquasuk snow drifts of 12 to 16 feet were observed when the blizzard ended. There were public accounts of snow drifts that were estimated to be about 5 feet in the village of Wainwright. A peak wind gust of 44 kt/51 mph was observed at the Wainwright ASOS.

Zone 202: A peak gust of 38kt/44 mph was observed during this event at the Barrow ASOS.

Zone 203: A peak wind gust of 40kt/46 mph was observed during this event at the Deadhorse ASOS.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Fairbanks, AK wrote its last area forecast discussion before the first event at Feb 19, 4:12 AM AKST, 5 hours 50 minutes earlier.

Area forecast discussion, Feb 19, 4:12 AM AKST, 5 hours 50 minutes before
NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
412 AM AKST FRI FEB 19 2010

.DISCUSSION...
MODELS IN DECENT AGREEMENT THROUGH THE EARLY STAGES GOING OUT TO
ABOUT 60 HOURS OR SO. SOLUTIONS DIFFER GREATLY IN MID RANGE
MODELS.

HUGE UPPER LEVEL RIDGE WELL LOCKED IN FROM PANHANDLE OF ALASKA
TO ARCTIC COAST OF FAR EAST RUSSIA. THIS RIDGE IS SUPPLYING A
PLETHORA OF WARM AIR FOR MOST OF NORTHERN ALASKA. ENOUGH WARM AIR
THAT MUCH OF THE PRECIPITATION TO FALL COULD BE FREEZING RAIN OR
EVEN RAIN AFTER THE PASSAGE OF THE WARM FRONT.

WEAK UPPER LEVEL LOW WILL MOVE INTO THE BERING AND ATTEMPT TO
MOVE A SHORTWAVE THROUGH THE WEST SIDE OF THE RIDGE.

THE UNREASONABLE AND UNSEASONABLE WARM TEMPERATURES WILL REMAIN
IN NORTHERN ALASKA THROUGH THE MIDDLE PART OF NEXT WEEK. STRONG
UPPER LEVEL LOW OVER NORTHWEST CANADIAN TERRITORY WITH
SIGNIFICANT COLD AIR WILL DECIDE TO SLIP SOUTHWEST AND SPILL MUCH
COLDER AIR OVER NORTHERN ALASKA BY MID WEEK.

WITH LARGE AREA OF HIGH PRESSURE WELL NORTH OF THE ARCTIC COAST
AND LOW MOVING NORTHWARD FROM GULF OF ALASKA WILL INCREASE
PRESSURE GRADIENT OVER ARCTIC COAST AND WEST COAST THROUGH FIRST
PART OF NEXT WEEK.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
WIND ADVISORY FOR AKZ225-AKZ226.

FREEZING RAIN ADVISORY FOR AKZ212-AKZ214-AKZ215-AKZ216.

BRISK WIND ADVISORY FOR PKZ200-PKZ210-PKZ220-PKZ225-PKZ230-
PKZ235-PKZ240-PKZ245.
&&

CF FEB 10

Event by event

3 blizzard. Local standard time, as filed.

Blizzard, Central Beaufort Sea Coast

When
February 19, 10:02 AM AKST to February 20, 6:45 AM AKST
Where
Central Beaufort Sea Coast forecast zone
Reported by
ASOS

Blizzard, Northern Arctic Coast

When
February 19, 6:53 PM AKST to February 20, 8:38 AM AKST
Where
Northern Arctic Coast forecast zone
Reported by
ASOS

Blizzard, Western Arctic Coast

When
February 19, 8:00 PM AKST to February 21, 8:00 PM AKST
Where
Western Arctic Coast forecast zone
Reported by
ASOS

What these are

Blizzard
Sustained winds or frequent gusts of 35 mph or more with falling or blowing snow that cuts visibility below a quarter mile for three hours or longer.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Alaska in 2010Every state in 2010This day in weather historyWarnings in Alaska, February 2010

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 207364, 207432, 207580.