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Heat Advisory

Status

Event Continued Active alert

Start Time

Wed 07/09/2025 12:00 PM EDT

End Time

Wed 07/09/2025 11:00 PM EDT

Significance

Advisory

Impacts

Low impact

Locations Affected

Aurora, CO ∙ Denver, CO ∙ Lakewood, CO ∙ Fort Collins, CO ∙ Thornton, CO ∙ Westminster, CO ∙ Boulder, CO ∙ Arvada, CO ∙ Centennial, CO ∙ Longmont, CO

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Denver CO 141 PM MDT Tue Jul 8 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 9 PM MDT WEDNESDAY... * WHAT...High temperatures between 98 and 102 degrees expected. * WHERE...Fort Collins, Longmont, Boulder and the Denver metro. * WHEN...From 10 AM to 9 PM MDT Wednesday. * IMPACTS...Hot temperatures may cause heat 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

Technical Header

COZ038>040-091200- /O.CON.KBOU.HT.Y.0002.250709T1600Z-250710T0300Z/ 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- Including the cities of Lakewood, Highlands Ranch, Denver International Airport, Golden, Parker, Aurora, Boulder, Hereford, Arvada, Brighton, City of Denver, Littleton, Nunn, Fort Collins, Loveland, and Longmont 141 PM MDT Tue Jul 8 2025