Weather Alerts For Perry Park, CO

# HEADLINE -------------------- OZONE ACTION DAY ALERT FROM 400 PM WEDNESDAY UNTIL 400 PM THURSDAY # SUMMARY -------------------- The Colorado Department of Public Health and Environment has issued the following... WHAT...Ozone Action Day Alert. # DETAILS -------------------- WHERE Douglas, Jefferson, Denver, western Arapahoe, western Adams, Broomfield, Boulder, Larimer, and Weld Counties WHEN 400 PM Wednesday June 17 to 400 PM Thursday June 18 IMPACTS Ozone Action Day Alert is now in effect for the Front Range Urban Corridor. Breezy winds will limit ozone development on Wednesday. However, hot and stagnant weather will allow ozone to reach the Unhealthy for Sensitive Groups category on Thursday. 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. Thursday, June 18, 2026. 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. ISSUED AT Wednesday, June 17, 2026 at 4:10 PM MDT ISSUED BY Relayed by National Weather Service Boulder CO HEADER Air Quality Alert Message | Colorado Department of Public Health and Environment # AREAS AFFECTED -------------------- Denver, Adams, Arapahoe, Boulder, Broomfield, Douglas, Jefferson, Larimer, Weld

Pollen Index: 8.5 Pollen Level: medium-high Predominant Pollen: Grass, Chenopods and Oak. Pollen concentrations for Thursday will be falling in the moderate range. This forecast of lower pollen concentration is based on falling temperatures and higher dew points. The lower pollen levels are significant and should help allergy sufferers to cope tomorrow.