Active Weather Alerts
Heat Advisory
Issued: 9:49 AM Jun. 21, 2025 – National Weather Service
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * 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...Until 6 PM MDT this evening. * 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 evening. Take action when you see symptoms of heat exhaustion and heat stroke. &&
Air Quality Alert
Issued: 12:10 AM Jun. 21, 2025 – National Weather Service
...OZONE ACTION DAY ALERT FROM 400 PM FRIDAY UNTIL 400 PM SATURDAY... The Colorado Department of Public Health and Environment has issued the following... WHAT...Ozone Action Day Alert. WHERE...Douglas, Jefferson, Denver, western Arapahoe, western Adams, Broomfield, Boulder, Larimer, and Weld Counties WHEN...400 PM Friday June 20 to 400 PM Saturday June 21 IMPACTS...Ozone Action Day Alert is now in effect for the Front Range Urban Corridor. Ozone levels will remain in the Good to Moderate range on Friday. On Saturday, hot and sunny conditions will allow ozone to reach the Unhealthy for Sensitive Groups category. The highest concentrations of ozone are expected in southern Larimer and Weld Counties, and along the lower foothills of the Front Range. For Colorado air quality conditions, forecasts, and advisories, visit: https://www.colorado.gov/airquality/colorado_summary.aspx If possible, please help us reduce ozone pollution by limiting driving gas and diesel-powered vehicles until at least 4 p.m. Saturday, June 21, 2025. Colorado is also addressing ozone pollution through state policies. For more information about health impacts and how ozone pollution forms in Colorado, visit: https://cdphe.colorado.gov/ozone- pollution-and-your-health HEALTH INFORMATION...Increasing likelihood of respiratory symptoms and breathing discomfort in active children and adults and people with lung disease, such as asthma. Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy outdoor exertion.
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