Heat Advisory
Status
Event Continued Active alertStart Time
Fri 06/20/2025 01:00 PM EDTEnd Time
Sat 06/21/2025 08:00 PM EDTSignificance
AdvisoryImpacts
Low impact
Locations Affected
Aurora, CO ∙ Denver, CO ∙ Lakewood, CO ∙ Fort Collins, CO ∙ Boulder, CO ∙ Thornton, CO ∙ Westminster, CO ∙ Centennial, CO ∙ Arvada, CO ∙ Longmont, COFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Denver CO 434 AM MDT Thu Jun 19 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 6 PM MDT SATURDAY... * WHAT...High temperatures near 100 degrees across the I-25 Urban Corridor, and up to 103 across the eastern plains. * WHERE...All of the I-25 Urban Corridor, northeast and east central plains of Colorado. * WHEN...The worst heat will be from 11 AM to 6 PM MDT both Friday and Saturday. * IMPACTS...Hot temperatures may cause heat related illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or late evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Technical Header
COZ038>051-192215- /O.CON.KBOU.HT.Y.0001.250620T1700Z-250622T0000Z/ 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 Byers, Kutch, Kiowa, Fort Morgan, Amherst, Larkspur, Holyoke, Elbert, Cope, Bennett, Agate, Akron, Otis, Deer Trail, Golden, Raymer, Peetz, Pawnee Buttes, City of Denver, Fondis, Wiggins, Forder, Longmont, Briggsdale, Sterling, Brush, Brighton, Grover, Sedgwick, Loveland, Matheson, Aurora, Ovid, Denver International Airport, Greeley, Goodrich, Karval, Boulder, Eaton, Leader, Stoneham, Roggen, Fort Collins, Julesburg, Parker, Highlands Ranch, Fort Lupton, Nunn, Littleton, Punkin Center, Last Chance, Haxtun, Arvada, Merino, Crook, Hugo, Limon, Hereford, Castle Rock, and Lakewood 434 AM MDT Thu Jun 19 2025
