We have determined that street and small stream flooding is possible in the following counties: Broomfield, Jefferson, Boulder (City of Boulder affected, Four Mile Burn Area affected), Arapahoe, Denver, Adams, Douglas
including: DIA, the City of Aurora, Arvada, Wheat Ridge, Lakewood from: Current to 700 PM.
Prime time for flooding: 330 PM to 600 PM. Forecast rainfall: Moderate and strong thunderstorms will have the potential to produce rainfall amounts of 0.3-0.8" in 10-20 minutes. Training of thunderstorm cells may result in up to 1.5" in 60 minutes or less. The most likely areas to be impacted by flooding are:

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

Additional Information: Strong thunderstorms may also produce frequent cloud-to-ground lightning, gusty straight-line winds, large hail and possibly even an isolated tornado.

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.