CBS Colorado's First Alert Meteorologist Callie Zanandrie is in the First Alert Weather Tracker, following snow in Colorado's mountains. More for You. Trump just declared May 8 a national holiday.

Track the severe thunderstorm outbreak here using our maps. ... Severe Weather Outbreak Tracker: Satellite, Radar, Outlooks And More. Jonathan Belles. Updated May 20, 2025 at 3:42 PM.