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Avalanche — Copper River Basin, Alaska

April 29, 1999 · NOAA Storm Events record

Direct deaths
1
Direct injuries
2
Property damage
—
Area
Copper River Basin

Event narrative (NOAA)

A slow moving slab avalanche swept Canadian mountaineer off a 20 to 30 degree slope and over a 1,000 to 1,500 foot drop. Slab apparently let go about 7 am Thursday, and was about 100 feet wide and 3 feet deep. Temperature at the time at altitude was about 5 degrees Fahrenheit and wind was calm. The 10,000 foot peak where the accident occurred is unofficially named "Ultima Thule" by locals located in the University range southeast of Glennallen.

Other notable avalanche events in Alaska

Cook Inlet · March 21, 19996 killedCopper River Basin · January 12, 20022 killedAnchorage Muni To Bird Creek · April 1, 20022 killedMatanuska Valley · February 3, 20012 killedCentral Gulf Coast · January 26, 20001 killedCook Inlet · February 1, 20001 killed

Source: NOAA/NCEI Storm Events Database. Deaths and injuries are those NOAA classifies as direct. Damage is the reporting office's estimate at the time and is not inflation-adjusted. This is a catalogue record, not a forecast.

Avalanche — Copper River Basin, Alaska, April 29, 1999 | DisasterAtlasUSA