Time: 819 PM Sat July 20, 2024 Forecaster: Aaron O'Brien ------------------------- 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: BOULDER (CITY OF BOULDER AFFECTED), BROOMFIELD, ADAMS including: ------------------------------------------------------------------------------ from: Current to 930 PM . Prime time for flooding: Current to 900 PM . ------------------------------------------------------------------------------ Forecast rainfall: Moderate to strong thunderstorms will produce rainfall rates of 0.50-1.00" total in 10-30 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 Boulder County, Broomfield County, and Adams County. Strong thunderstorms may also contain large hail, gusty 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. MHFD Flood Prediction Center: 303-458-0789    F2P2 Website [http://udfcd.org/Flash+Flood+Prediction+Program]