A substantial winter storm has swept through Colorado, bringing significant snowfall to various regions just before Thanksgiving. Denver experienced a hit-and-miss snowstorm, while heavy snow accumulation was noted in the mountains, prompting a Winter Storm Warning across six states. Areas in Colorado have seen totals exceeding 20 inches, impacting travel conditions and causing road closures, particularly on I-70. Authorities have issued warnings for high avalanche danger and treacherous driving conditions as the storm continues to affect visibility and create challenging travel scenarios. Ski resorts are benefiting from the fresh snow, with reports of double-digit totals that should enhance holiday skiing opportunities. The storm is expected to ease by midday Wednesday, but colder air and the potential for hazardous conditions linger into the Thanksgiving weekend.