This is the first time that four backcountry zones have gone to EXTREME (5 of 5) Avalanche Danger since the ten-zone forecast format began. Backcountry avalanche conditions are extremely dangerous. Historic avalanches have run around the region this morning, and they will continue to do so today. Travel in, near, or below avalanche terrain is not recommended. This may include backcountry roads, trailheads, or any infrastructure below avalanche paths where avalanche mitigation is not occurring. Even low elevation avalanche terrain that rarely slides might today. With extremely dangerous conditions, keep it simple and just AVOID the backcountry.
Friends of CAIC @friendsofCAIC 17 hours ago
AVALANCHE WARNING! The Central Mountains and the Vail-Summit County zone are rising to HIGH danger overnight Wednesday, and could reach EXTREME by Thursday. Large to historic-size avalanches are very likely, and some will run naturally impacting even the valley floors.
USFS_Pike&San Isabel @PSICC_NF 1 hour ago
Extreme avalanche danger for most of the Pike and San Isabel National Forests. Avalanches to valley floors have been occurring. These conditions are serious. Backcountry travel is not recommended.