Time: 258 PM Sun June 11, 2023 Forecaster: Justin Brooks ------------------------- MESSAGE 1 Flash Flood Prediction Program ------------------------- **** LOW IMPACT FLOODING **** PRIORITY DISSEMINATION RECOMMENDED We have determined that low impact flooding is likely in the following counties: ARAPAHOE, DOUGLAS including: THE CITY OF AURORA ------------------------------------------------------------------------------ from: Current to 600 PM . Prime time for flooding: Current to 530 PM . ------------------------------------------------------------------------------ Forecast rainfall: Moderate to strong strong thunderstorms will have the potential to produce rainfall rates of 0.75-1.5" in 10-30 minutes. A nearly stationary strong thunderstorm or training of thunderstorm cells may produce up to 2.5" in 45-60 minutes. ------------------------------------------------------------------------------ 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: Excessive runoff is imminent or already occurring in Douglas County, Arapahoe County, and the City of Aurora. Strong thunderstorms may also contain large hail up to or exceeding 1.25" in diameter, gusty winds and 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. MHFD Flood Prediction Center: 303-458-0789    F2P2 Website [http://udfcd.org/Flash+Flood+Prediction+Program]