Northern San Juan

Snowpack

Krista Beyer · Apr 27, 2024 · Northern San Juan

Weather

This storm started Thursday afternoon and continues into tomorrow (Sunday). Banded precipitation has caused periods of high precipitation intensity, followed by cloud breaks and periods of sun on Friday. Saturday was overcast with periods of flat light and limited visibility, as well as in-and-out precipitation. Winds were light-moderate for the duration of the storm 10-25 mph. While temps are warm (up to 32 degrees at 11,000 ft by 11 a.m.), cloud cover and the absence of "the great oppressor" have limited any loose activity. Another possible 6 inches is forecasted for tonight.

Snowpack

Below treeline and near treeline, where temps are warmer and the snowpack is shallow or bare in places, the new snow is short-lived and will likely melt quickly once the sun reemerges. In addition, slopes will quickly shed once the sun hits. Above treeline gained a bit more out of this storm but will need a lot more to bury the dust. New snow, even on northern aspects, will be affected quickly with the springtime cocktail of long late April days of sun, recent temps that have been 10-15 degrees above average, and shallow buried dust layers. The heavy density of the snow may suspend loose shedding during intermittent sun pops. However, prolonged sun that will likely arrive on Monday will likely cause shedding even on north aspects at upper elevations. Limited drifting was observed perhaps due to high density of snow. Snowpack instabilities are limited to the new snow at this time.