Time: 1140 PM Tue July 6, 2021 Forecaster: Brad Simmons ------------------------- MESSAGE 1 UPDATE Flash Flood Prediction Program ------------------------- STREET FLOODING POTENTIAL We previously determined that street and small stream flooding is possible in the following counties: ADAMS, DOUGLAS, BROOMFIELD, JEFFERSON, BOULDER (CITY OF BOULDER AFFECTED, FOUR MILE BURN AREA AFFECTED), DENVER, ARAPAHOE including: DIA, THE CITY OF AURORA, ARVADA, WHEAT RIDGE, LAKEWOOD ------------------------------------------------------------------------------ from: Current to 200 AM . Prime time for flooding: Current to 100 AM . ------------------------------------------------------------------------------ Forecast rainfall: Moderate to strong thunderstorms will have the potential to produce 0.3-0.8" of heavy rain 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: Message 1's have been extended until 2:00am Wednesday. Due to rainfall earlier in the evening it may not take as much rain to produce excessive runoff. 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]