Time: 408 PM Sun July 30, 2023 Forecaster: Justin Brooks ------------------------- MESSAGE 1 Flash Flood Prediction Program ------------------------- STREET FLOODING POTENTIAL We have determined that street and small stream flooding is possible in the following counties: ARAPAHOE, DENVER, JEFFERSON, BROOMFIELD, DOUGLAS, ADAMS, BOULDER (CITY OF BOULDER AFFECTED, FOUR MILE BURN AREA AFFECTED) including: LAKEWOOD, WHEAT RIDGE, ARVADA, THE CITY OF AURORA, DIA ------------------------------------------------------------------------------ from: Current to 900 PM . Prime time for flooding: 430 PM to 830 PM . ------------------------------------------------------------------------------ Forecast rainfall: Moderate to strong thunderstorms have the potential to produce heavy rainfall rates of 0.5-1.2” 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: A slow moving strong thunderstorm may result in up to 2.0” of rain in 45-60 minutes. 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]