Time: 826 PM Thu June 8, 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, JEFFERSON including: THE CITY OF AURORA ------------------------------------------------------------------------------ from: Current to 1030 PM . Prime time for flooding: Current to 1000 PM . ------------------------------------------------------------------------------ Forecast rainfall: Moderate to strong strong thunderstorms will have the potential to produce rainfall rates of 0.5-1.2" in 10-30 minutes. A nearly stationary strong thunderstorm or training of thunderstorm cells may produce up to 2.0" in 45-60 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: Excessive runoff is imminent or already occurring in Jefferson 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]