Sun Valley, ID CLOSED Second Day In A Row Due to Rain & High Avalanche Danger Sun Valley Resort, ID was forced to close today and yesterdayย due to rain and high to extreme avalanche conditions. NOAA & the Sawtooth Avalanche Center have extended the Avalanche Warning until 5pm today. Locals are telling us that Sun Valley hasn’t closed for any reason in 28 years (we can’t confirm this). Avalanche Danger is rated at HIGHย in Sun Valley […] Industry News SnowBrains | February 10, 2017 0 Comments