Freeze Watch
Status
Event Continued Active alertStart Time
Tue 05/19/2026 02:00 AM EDTEnd Time
Tue 05/19/2026 10:00 AM EDTSignificance
WatchImpacts
Moderate impact
Locations Affected
Aurora, CO ∙ Denver, CO ∙ Fort Collins, CO ∙ Lakewood, CO ∙ Westminster, CO ∙ Centennial, CO ∙ Arvada, CO ∙ Boulder, CO ∙ Thornton, CO ∙ Longmont, COFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Denver CO 1059 PM MDT Sun May 17 2026 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY MORNING... * WHAT...Sub-freezing temperatures as low as 30 possible. * WHERE...The I-25 Urban Corridor and all of the plains of northeast Colorado. * WHEN...From late Monday night through early Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold.
Technical Header
COZ038>051-182000- /O.CON.KBOU.FZ.A.0003.260519T0600Z-260519T1400Z/ Larimer County Below 6000 Feet/Northwest Weld County-Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County-North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County-Elbert/Central and East Douglas Counties Above 6000 Feet-Northeast Weld County-Central and South Weld County-Morgan County-Central and East Adams and Arapahoe Counties-North and Northeast Elbert County Below 6000 Feet/North Lincoln County-Southeast Elbert County Below 6000 Feet/South Lincoln County-Logan County-Washington County-Sedgwick County- Phillips County- Including the cities of Akron, Wiggins, Sedgwick, Deer Trail, Littleton, Parker, Goodrich, Longmont, Holyoke, Larkspur, Fort Lupton, Matheson, Last Chance, Stoneham, Elbert, Amherst, Bennett, Karval, Fondis, Briggsdale, Highlands Ranch, Golden, Fort Collins, Grover, Arvada, Hereford, Forder, Limon, Roggen, Raymer, Fort Morgan, Julesburg, Peetz, Leader, Otis, Haxtun, Brush, Hugo, Agate, Brighton, Aurora, Nunn, Denver International Airport, City of Denver, Punkin Center, Cope, Loveland, Castle Rock, Byers, Eaton, Merino, Greeley, Pawnee Buttes, Sterling, Ovid, Lakewood, Kiowa, Boulder, Kutch, and Crook 1059 PM MDT Sun May 17 2026
