Time: 149 PM Thu July 20, 2023 Forecaster: Brad Simmons

MESSAGE 1
Flash Flood Prediction Program

**** LOW IMPACT FLOODING ****
PRIORITY DISSEMINATION RECOMMENDED

We have determined that low impact flooding is likely in Arapahoe County
including: the City of Aurora
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from: Current to 245 PM.
Prime time for flooding: Current to 215 PM.
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Forecast rainfall: Moderate to strong thunderstorm will have the potential to produce rainfall rates of 0.5-1.5" in 10-30 minutes. An anchored strong thunderstorm or training of thunderstorm cells has the potential to produce up to 2.0” of rain in 45-60 minutes.
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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

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Additional Information: Excessive runoff is imminent or already occurring in Arapahoe County and the City of Aurora. Storm is impacting Arapahoe County and far SE Aurora near Aurora Reservoir. 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.

https://f2p2.udfcd.org/generator/