2 products issued by NWS for: Golden CO
Air Quality Alert
COC005-014-059-031-069-035-001-013-123-180600- Arapahoe-Broomfield-Jefferson-Denver-Larimer-Douglas-Adams- Boulder-Weld- 510 PM MDT Thu Jul 17 2025 ...OZONE ACTION DAY ALERT FROM 400 PM THURSDAY UNTIL 1200 AM FRIDAY... 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 Thursday July 17 to 1200 AM Friday July 18 IMPACTS...Ozone Action Day Alert is now in effect for the Front Range Urban Corridor. On Thursday, stagnant weather will allow ozone to reach the Unhealthy for Sensitive Groups category on Thursday. The highest concentrations are expected in southern and western portions of the Denver Metro area. Unsettled weather will limit ozone development on Friday, and Good to Moderate ozone is expected. 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 midnight Thursday night, July 17, 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. $$
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Denver/Boulder CO 1253 PM MDT Thu Jul 17 2025 COZ030>051-181900- Jackson County Below 9000 Feet- West Jackson and West Grand Counties Above 9000 Feet- Grand and Summit Counties Below 9000 Feet- South and East Jackson/Larimer/North and Northeast Grand/ Northwest Boulder Counties Above 9000 Feet- South and Southeast Grand/West Central and Southwest Boulder/ Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Central and Southeast Park County- 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- 1253 PM MDT Thu Jul 17 2025 This hazardous weather outlook is for northeast and north central Colorado. .DAY ONE...This Afternoon and Tonight Scattered showers and thunderstorms are expected to track across Park County and eastward over the Palmer Divide this afternoon and evening. Heavy rain, small hail, and wind gusts to 50 mph will be possible from the stronger thunderstorms. Farther north, weaker isolated showers and thunderstorms will be possible. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Afternoon and evening showers and thunderstorms are expected each day through Sunday, with the best chance being on Saturday. For early next week, very warm and drier weather is expected. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today or tonight. $$