Time: 1141 PM Wed September 4, 2024 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 BOULDER COUNTY (CITY OF BOULDER AFFECTED) including: ------------------------------------------------------------------------------ from: Current to 100 AM . Prime time for flooding: Current to 1245 AM . ------------------------------------------------------------------------------ Forecast rainfall: Moderate thunderstorms will produce rainfall rates of 0.25-0.75" total in 10- 30 minutes. A strong stationary storm, or training of thunderstorms will have the potential to produce up to 1.25" in under 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 ------------------------------------------------------------------------------ Additional Information: Excessive runoff is imminent or already occurring in Boulder County. Strong thunderstorms may also contain some 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]