New snowfall across
Alaska
today, with
Atigun Pass
receiving up to
9” of
new snowfall, raising snowpack levels up to
34”.
Snowpack levels across the state are currently 11% of normal.
The deepest snowpack in Alaska
was last observed at
Atigun Pass
with a
snowpack depth of
34”,
about 137%
of normal when compared to it's
25"
average depth for this time of year.
Atigun Pass,
perched at an elevation of
4,800 ft.,
is currently experiencing some of the coldest temps in
Alaska
with air temps last recorded at
12 degrees.
More snowfall is expected this week, and areas like
Long Lake
are forecasted to receive up to
16"
of snowfall in the next 5 days.
Snowpack conditions in Alaska vary across different mountain ranges, affecting the state's runoff rivers, watersheds, and winter climate. The Chugach Mountains, located in south-central Alaska, receive heavy snowfall due to the moist maritime climate. This snowpack provides crucial water resources for the Matanuska and Copper River basins, supporting agriculture and fisheries. The Alaska Range, home to the iconic Denali (North America's tallest peak), experiences drier snow conditions due to its interior location. Snowmelt from this range feeds into the Susitna and Tanana Rivers. The Brooks Range in northern Alaska receives lighter snowfall and contributes to the flow of the Koyukuk and Colville Rivers. Alaska's winter climate is greatly influenced by the Aleutian Low and the Arctic Oscillation, leading to varying snowfall patterns each year. Interesting facts about snow science in Alaska include the use of ground-penetrating radar to measure snow depth and the study of snow crystal structures to understand the stability and avalanche potential of the snowpack.