Arvada, CO Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Arvada.

Use the Radar Maps link provided to understand the trajectory of a storm.

Flood Watch issued July 11 at 12:11PM MDT until July 12 at 9:00AM MDT by NWS Goodland KS

* WHAT...A localized band of heavy rainfall with 2-4" will be possible across Yuma, Cheyenne, and Dundy counties as multiple rounds of storms move through the area overnight Friday into Saturday. * WHERE...Portions of northeast Colorado, including the following county, Yuma, northwest Kansas, including the following county, Cheyenne, and southwest Nebraska, including the following county, Dundy. * WHEN...From 6 PM MDT /7 PM CDT/ this evening through Saturday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Extensive street flooding and flooding of creeks and rivers are possible. Overnight flooding will make it difficult to see the depth of any water.

Flood Watch issued July 11 at 11:57AM MDT until July 12 at 6:00AM MDT by NWS Denver CO

* WHAT...Flash flooding caused by excessive rainfall is possible overnight Friday into Saturday morning. * WHERE...A portion of northeast Colorado, including the following areas, Logan County, Morgan County, Northeast Weld County, Phillips County, Sedgwick County and Washington County. * WHEN...From 6 PM MDT this evening through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Extensive street flooding and flooding of creeks and rivers are possible.

Air Quality Alert issued July 11 at 9:10AM MDT by NWS Pueblo CO

The Colorado Department of Public Health and Environment has issued the following... WHAT...Air Quality Health Advisory for Wildfire Smoke. WHERE...Saguache, San Juan, Hinsdale, Mineral, Archuleta, Mesa, Delta, Gunnison, Montrose, Ouray, San Miguel, Dolores, Montezuma, La Plata, Rio Grande and Conejos Counties. Locations include, but are not limited to Saguache, Silverton, Lake City, Creede, Pagosa Springs, Delta, Gunnison, Montrose, Nucla, Ouray, Telluride, Dove Creek, Cortez, Durango, Hermosa, Honeyville, Rockwood, Del Norte, South Fork and Conejos. WHEN...900 AM Friday July 11 to 900 AM Saturday July 12 IMPACTS...Multiple wildfires across the region will produce moderate to heavy smoke through at least early Saturday morning. HEALTH INFORMATION...Public Health Recommendations: If smoke is thick or becomes thick in your neighborhood you may want to remain indoors. This is especially true for those with heart disease, respiratory illnesses, the very young, and older adults. Consider limiting outdoor activity when moderate to heavy smoke is present. Consider relocating temporarily if smoke is present indoors and is making you ill. If visibility is less than 5 miles in smoke in your neighborhood, smoke has reached levels that are unhealthy.

Air Quality Alert issued July 11 at 9:10AM MDT by NWS Grand Junction CO

The Colorado Department of Public Health and Environment has issued the following... WHAT...Air Quality Health Advisory for Wildfire Smoke. WHERE...Saguache, San Juan, Hinsdale, Mineral, Archuleta, Mesa, Delta, Gunnison, Montrose, Ouray, San Miguel, Dolores, Montezuma, La Plata, Rio Grande and Conejos Counties. Locations include, but are not limited to Saguache, Silverton, Lake City, Creede, Pagosa Springs, Delta, Gunnison, Montrose, Nucla, Ouray, Telluride, Dove Creek, Cortez, Durango, Hermosa, Honeyville, Rockwood, Del Norte, South Fork and Conejos. WHEN...900 AM Friday July 11 to 900 AM Saturday July 12 IMPACTS...Multiple wildfires across the region will produce moderate to heavy smoke through at least early Saturday morning. HEALTH INFORMATION...Public Health Recommendations: If smoke is thick or becomes thick in your neighborhood you may want to remain indoors. This is especially true for those with heart disease, respiratory illnesses, the very young, and older adults. Consider limiting outdoor activity when moderate to heavy smoke is present. Consider relocating temporarily if smoke is present indoors and is making you ill. If visibility is less than 5 miles in smoke in your neighborhood, smoke has reached levels that are unhealthy.