We have determined that street and small stream flooding is possible in the following counties: Jefferson, Douglas, Arapahoe
including: the City of Aurora, Arvada, Wheat Ridge, Lakewood from: 1230 PM to 900 PM.
Prime time for flooding: 130 PM to 800 PM. Forecast rainfall: Weak to moderate thunderstorms will have the potential to produce 0.4-1.0" of rain in 10-30 minutes. The most likely areas to be impacted by flooding are:

X Mountain streams & floodplains; road crossings; canyon roads & highways; recreational trails; adjacent open space areas/campgrounds/parks; fishing access points & stream reaches; buildings near streams; utilities

X Urban streams/gulches; road crossings; recreational trails; adjacent open space areas/campgrounds/parks; floodplain properties; utilities

X Urban streets, intersections, low lying areas, known trouble spots

X Mountain locations subject to mud/rock/debris slide

Additional Information: Strong thunderstorm cells may produce 0.5-1.5" of rain in 10-30 minutes and up to 2.2" of rain in 45-60 minutes. Strong thunderstorms may also contain hail, gusty straight-winds, and frequent cloud-to-ground lightning.

This message is not intended for public dissemination. Please pass this information along to affected emergency response organizations (police, fire, public works, etc.) within your area.

Also, please take appropriate actions to prepare for possible flooding.

Further information will be provided to you as it becomes available.