Upper elevations in the Logan Zone picked up over 2 feet of snow with over 4 inches of SWE with the Valentines Storm. There is epic powder, but heightened avalanche conditions exist in the backcountry and human triggered avalanches are possible on many slopes.
The Tony Grove Snotel at 8400' reports 1" of light new snow overnight. It's a chilly 5º F this morning and there's 90" of total snow containing 107% of average SWE for the date. It's 2º F, at the 9700' CSI Logan Peak weather station, and the wind sensor appears to be covered in rime. Southeast winds are currently averaging around 10 mph at the UDOT Hwy 89 Logan Summit station.
A storm system crossing the area through Tuesday will maintain a cold and moist airmass across the area. Another storm system is expected to impact the state during the second half of the week. Expect mostly cloudy conditions and a chance for a snowflake or two today. High temperatures at 8500' are expected to be around 16º F, and with 5-15 mph east-southeast winds veering from the north, wind chills will be around -15º F. Tonight temperatures will be around 0º F, with 5 to 10 mph north-northeast winds and wind chills around -14º F. Mostly cloudy tomorrow, with high temperatures around 13º F, and 7 to 11 mph north winds.
Numerous natural avalanches involving heavy, drifted, and rain-saturated snow were observed this weekend on slopes at all elevations across the Logan Zone.
This large natural hard slab avalanche was observed Friday afternoon in upper Providence Canyon. The crown looks to be 6 to 8 feet deep and it's about 1000' wide.
There were several large avalanches at low elevations on the east side of the Wellsville Range involving wind drifted and rain saturated new snow. This one is at around 6000' on Maple Bench.
