Alaska, 2011

Winter Storm and Heavy Snow in Alaska, January 11 to 17, 2011

January 11 to 17, 2011 · NWS AJK · 10 events in 8 counties and zones

January 11 through January 17th. A 1060 MB super high cell built over the northern Alcan 1/11 and extended to the southeast over the Yukon.

The toll

Deaths
0
Injuries
0
Property damage
$300,000
Crop damage
None recorded
Events
10

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 AJK wrote it up.

January 11 through January 17th. A 1060 MB super high cell built over the northern Alcan 1/11 and extended to the southeast over the Yukon. Pressure gradients were extreme for gap outflow offshore winds. This pattern persisted for days as a result of a blocking high aloft. On 1/17 a warm front (arctic) moved to the Queen Charlotte Islands associated with a gale center far to the southwest for over-running snow for the southern Panhandle. This low weakened as it moved over the southern Panhandle on the 17th.

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 Juneau, AK wrote its last area forecast discussion before the first event at Jan 11, 5:51 AM AKST, 3 hours 9 minutes earlier.

Area forecast discussion, Jan 11, 5:51 AM AKST, 3 hours 9 minutes before
SOUTHEAST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JUNEAU AK
551 AM AKST TUE JAN 11 2011

.SHORT TERM...EARLY MORNING SATELLITE LOOP REVEALS A WEAKENING
INVERTED TROUGH ALONG THE PANHANDLE COAST WITH PERSISTING HIGH
PRESSURE OVER NORTHWESTERN CANADA. A MID TO UPPER LEVEL SHORTWAVE
TROUGH DIGGING SOUTHWEST ACROSS THE PANHANDLE SPILLS SOME MIDDLE
TO HIGH CLOUDS ACROSS THE NORTHERN AND CENTRAL PANHANDLE.
TIGHTENED NORTHERLY PRESSURE GRADIENT CONTINUES TO GENERATE GUSTY
WINDS UP TO 35 MPH ACROSS THE SKAGWAY AREA...AND OUT OF INTERIOR
PASSES ACROSS THE PANHANDLE. ALONG WITH THE SHORTWAVE
TROUGH...ENTRAINMENT OF COLD ARCTIC AIR MASS CONTINUES ACROSS THE
FORECAST DOMAIN. MODELS ARE IN FAIR AGREEMENT WITH HIGH PRESSURE
OVER NORTHWESTERN CANADA CONTINUING TO BUILD THROUGH TONIGHT AND
THE WEAK INVERTED TROUGH REMAINING ACROSS THE OUTSIDE COASTAL
WATERS. REFRESHED THE INHERITED GRIDS WITH THE NAM FOR TODAY AND
TONIGHT.

 AS HIGH PRESSURE OVER NORTHWESTERN CANADA REBUILDS
TODAY...OUTFLOW WINDS WILL BECOME STRONGER ACROSS THE PANHANDLE
THIS MORNING AND CONTINUE THROUGH MIDDLE OF THIS WEEK. ADVISORY
LEVEL WIND GUSTS WILL BE DEVELOPING BY MID MORNING TODAY FOR MOST
INTERIOR ZONES AND STRONG TAKU WIND EVENT IS EXPECTED FOR
DOWNTOWN JUNEAU AND DOUGLAS LATE THIS AFTERNOON INTO EARLY
EVENING HOURS. KEPT WIND ADVISORIES FOR YAKUTAT...GUSTAVUS...ELFIN
COVE AREAS AS THEY ARE AND ADDED PETERSBURG AND HYDER ZONES. ALSO
ISSUED HIGH WIND WARNING FOR TAKU WIND SCENARIO. A COLD AIR
ADVECTION WILL CONTINUE ACROSS THE AREA. THE WIND ADVISORIES FOR
SKAGWAY AND HAINES AREAS WERE COMBINED WITH WIND CHILL ADVISORIES
AND ISSUED A WINTER WEATHER ADVISORY FOR THEM. ACROSS THE MARINE
ZONES...GALES WILL CONTINUE ACROSS THE NORTHERN INNER CHANNELS
TODAY AND TONIGHT WITH HEAVY FREEZING SPRAY TONIGHT. GALE FORCE
OUTFLOW WILL ALSO LIKELY TO EXPAND INTO THE NORTHERN OUTSIDE
COASTAL WATERS LATE THIS AFTERNOON INTO TONIGHT. THE REMAINING OF
THE COASTAL WATERS AND INNER CHANNELS WILL SEE SMALL CRAFT WINDS
WITH FREEZING SPRAY ACROSS STEPHENS PASSAGE AND FREDERICK SOUND.

&&

.LONG TERM...THE WIND EVENT THAT BEGINS IN THE SHORT TERM FORECAST
PERIOD IS EXPECTED TO REACH PEAK INTENSITY EARLY ON IN THE
EXTENDED RANGE FORECAST PERIOD ON WEDNESDAY. INGREDIENTS FOR A
SIGNIFICANT TAKU WIND EVENT ARE ALL THERE...WITH FAVORABLE TO VERY
FAVORABLE NUMBERS FOR CRITICAL LEVEL...CROSS BARRIER FLOW...AND
INVERSION FROM EARLY WEDNESDAY MORNING THROUGH THE AFTERNOON. THIS
WIND EVENT WILL TAPER OFF SLOWLY AND ADVISORY LEVEL GUSTS WILL
CONTINUE THEREAFTER IN ZONE 25 AS WELL AS THE OTHER ZONES UNDER
ADVISORIES INTO THURSDAY.

VERY COLD AIR FROM CANADA WILL CONTINUE TO SPILL OVER THE COAST
MOUNTAINS AND THROUGH INTERIOR PASSES AS WELL DURING THE EXTENDED
RANGE FORECAST PERIOD DRIVING DOWN DAYTIME HIGHS AND LOWS TO WELL
BELOW NORMAL VALUES. COLD TEMPS AND STRONG WINDS WILL PRODUCE
FREEZING SPRAY OVER MUCH OF THE INNER CHANNELS AS WELL AS THE
COASTAL MARINE WATERS FROM CAPE EDGECUMBE TO ICY BAY. OVER
LAND...WIND CHILL WILL BE AN ISSUE AS WELL. HAVE CHILL TEMPS DOWN
TO 50 DEGREES BELOW ZERO FOR THE KLONDIKE HIGHWAY AT TIMES...WHICH
IS JUST SHORT OF WARNING CRITERIA. REGARDLESS...WINDS...WIND
CHILL...AND FREEZING SPRAY WILL PRESENT SIGNIFICANT HAZARDS TO ALL
FORMS OF TRAVEL AND INDIVIDUALS EXPOSED OUT OF DOORS.

THE NORTHEAST PRESSURE GRADIENT BEING CREATED BY HIGH PRESSURE
OVER WESTERN CANADA AND LOW PRESSURE OVER THE GULF WILL REMAIN IN
PLACE THROUGH AT LEAST THE WEEKEND...SO COLD AND WINDY CONDITIONS
WILL BE WITH US FOR A WHILE.

USED A BLEND OF NAM AND ECMWF FOR UPDATES TO GRIDS THROUGH
THURSDAY NIGHT. FORECAST CONFIDENCE IN STRONG WINDS AND WELL BELOW
NORMAL TEMPERATURES THROUGH THAT TIME IS ABOVE AVERAGE.

.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...WIND ADVISORY FROM 9 AM THIS MORNING TO 3 AM AKST WEDNESDAY FOR
 	 AKZ026.
	 HIGH WIND WARNING FROM 9 AM THIS MORNING TO 3 AM AKST THURSDAY
	 FOR AKZ025.
	 WIND ADVISORY FROM 9 AM THIS MORNING TO 3 AM AKST
 	 THURSDAY FOR AKZ017-022-029.
 	 WIND ADVISORY FROM 6 PM THIS EVENING TO 3 AM AKST THURSDAY FOR
	 AKZ020.
	 WINTER WEATHER ADVISORY FROM 9 AM THIS MORNING TO 3 AM AKST
	 THURSDAY FOR AKZ018-019.
MARINE...HEAVY FREEZING SPRAY WARNING FOR PKZ011-012.
	 GALE WARNING FOR PKZ011>013-031-043-051.
	 SMALL CRAFT ADVISORY FOR PKZ021-022-032-034>036-042-052.

&&

AHN/FRITSCH

Event by event

5 winter storm, 4 high wind, 1 heavy snow. Local standard time, as filed.

High Wind, Juneau Borough and Northern Admiralty Island

When
January 11, 9:00 AM AKST to January 13, 12:00 PM AKST
Where
Juneau Borough and Northern Admiralty Island forecast zone
Measured
77 kt (89 mph) measured gust
Property damage
$200,000
Reported by
Official NWS Observations

Damaging wind storm for days. Douglas Boat Harbor (FAA) had numerous gusts in the 80 MPH range. Wind shields were broken. Boats on trailers overturned. Infrastructure damaged.

High Wind, Salisbury Sound to Cape Fairweather Coastal Area

When
January 12, 11:50 AM AKST to 9:00 PM AKST
Where
Salisbury Sound to Cape Fairweather Coastal Area forecast zone
Measured
53 kt (61 mph) measured sustained
Reported by
C-MAN Station

Cape Spenser had a sustained wind of 53 KT at 1900 AKST on the evening of 1/12. Although a marine observation, analysis showed that similar wind was occurring over land. No known damage.

High Wind, Juneau Borough and Northern Admiralty Island

When
January 13, 12:00 PM AKST to January 15, 12:00 PM AKST
Where
Juneau Borough and Northern Admiralty Island forecast zone
Measured
69 kt (79 mph) measured gust
Property damage
$100,000
Reported by
Official NWS Observations

Damaging wind storm for days. Douglas Boat Harbor (FAA) had numerous gusts in the 80 MPH range. Wind shields were broken. Boats on trailers overturned. Infrastructure damaged.

Winter Storm, Dixon Entrance to Cape Decision Coastal Area

When
January 14, 9:00 AM AKST to January 16, 12:00 PM AKST
Where
Dixon Entrance to Cape Decision Coastal Area forecast zone
Reported by
Trained Spotter

Edna Bay spotter observed 7 inches new snow at 1800 AKST on 1/16. Most of that snow fell in the morning. Klawock had freezing rain that afternoon and the peak gust during the event was 34 KT. Nasty couple of days.

Winter Storm, Southern Inner Channels

When
January 14, 9:00 AM AKST to January 16, 3:00 PM AKST
Where
Southern Inner Channels forecast zone
Reported by
Trained Spotter

Meyers Chuck measured 7 inches new snowfall on the morning of 1/16 and 5 new inches on the morning of 1/17. Ketchikan got less snow.

Winter Storm, Misty Fjords

When
January 14, 9:00 AM AKST to January 17, 12:00 AM AKST
Where
Misty Fjords forecast zone
Reported by
COOP Observer

Hyder measured 2.2 inches new snow on the 15th, 9.0 inches on the 16th, and 7.8 inches on the 17th and 3.4 inches on the 18th for a storm total of 22.4 inches snow.

High Wind, Salisbury Sound to Cape Fairweather Coastal Area

When
January 14, 12:20 PM AKST to January 15, 5:00 AM AKST
Where
Salisbury Sound to Cape Fairweather Coastal Area forecast zone
Measured
78 kt (90 mph) measured gust
Reported by
C-MAN Station

Cape Spenser had a peak wind of 78 KT at 1200 AKST on the afternoon of 1/14. Although a marine observation, analysis showed that similar wind was occurring over land. No known damage.

Winter Storm, Taiya Inlet and Klondike Highway

When
January 15, 3:00 PM AKST to January 17, 12:00 AM AKST
Where
Taiya Inlet and Klondike Highway forecast zone
Reported by
ASOS

Snow, wind, wind chill, blowing and drifting snow were the hazards in a storm that hit the Skagway area and Klondike Highway on the night of the 15th into the evening of the 16th. Peak wind of 49 KT occurred at Skagway airport on the afternoon of the 16th and 40s were quite common during the storm. The lowest visibility was 1.5 miles but only a couple of inches of dry, light snow fell. Driving was hazardous in blowing and drifting snow further up the Klondike highway. No accidents were reported.

Winter Storm, Inner Channels From Kupreanof Island to Etolin Island

When
January 16, 5:00 AM AKST to January 17, 12:00 AM AKST
Where
Inner Channels From Kupreanof Island to Etolin Island forecast zone
Reported by
COOP Observer

Storm totals for this event ranged from 14 to 22 inches new snowfall.

Heavy Snow, Eastern Baranof Island and Southern Admiralty Island

When
January 16, 8:00 AM AKST to January 17, 12:00 AM AKST
Where
Eastern Baranof Island and Southern Admiralty Island forecast zone
Reported by
COOP Observer

Hidden Falls hatchery had a storm total of 28.5 inches new snow for this event.

What these are

High Wind
Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.
Winter Storm
A storm that brought snow, sleet or freezing rain at warning levels, usually over several hours or days.
Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.

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

The same day elsewhere

More

Every storm in Alaska in 2011Every state in 2011This day in weather historyWarnings in Alaska, January 2011

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: 280993, 280995, 280994, 281002, 281013, 281014, 280996, 281271, 281016, 281372.