Active Weather Alerts
Flood Advisory
Issued: 4:28 AM Jul. 17, 2025 – National Weather Service
...FLOOD ADVISORY WILL EXPIRE AT 1030 PM MDT THIS EVENING... The Flood Advisory will expire at 1030 PM MDT this evening for a portion of northeast Colorado, including the following area, Weld. The heavy rain has ended. Urban area and small stream flooding is no longer expected to pose a threat. Please continue to heed any remaining closures. &&
Flood Advisory
Issued: 3:51 AM Jul. 17, 2025 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL 1245 AM MDT THURSDAY... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of northeast Colorado, including the following counties, north central Adams and south central Weld. * WHEN...Until 1245 AM MDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 950 PM MDT, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 2.5 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Mainly rural areas of North Central Adams and South Central Weld Counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Excessive runoff from heavy rainfall will cause minor flooding of small creeks and streams, highways, streets, underpasses, drainage areas and other low lying spots. &&
Air Quality Alert
Issued: 10:11 PM Jul. 16, 2025 – National Weather Service
...OZONE ACTION DAY ALERT FROM 400 PM WEDNESDAY UNTIL 400 PM THURSDAY... 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 Wednesday July 16 to 400 PM Thursday July 17 IMPACTS...Ozone Action Day Alert is now in effect for the Front Range Urban Corridor. Ozone will remain in the Good to Moderate range on Wednesday. Warming temperatures and light winds may allow ozone to reach levels that are Unhealthy for Sensitive Groups on Thursday. The highest concentrations are expected along the western portions of the northern Front Range, from western Denver northward to Fort Collins. 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, 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.
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