We have determined that low impact flooding is likely in Boulder County (City of Boulder affected, Four Mile Burn Area not affected)
including:
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from: Current to 530 PM.
Prime time for flooding: Current to 500 PM.
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Forecast rainfall: Rain showers and weak to moderate thunderstorms will have the potential to produce 0.5-1.5" of heavy rain in 10-30 minutes. A nearly stationary moderate to strong thunderstorm will have the potential to produce up to 3.0" in 60-90 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
X Mountain locations subject to mud/rock/debris slide
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Additional Information: Excessive runoff is imminent or already occurring over Boulder County, including the City of Boulder.
Thunderstorms may also contain 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.