Rain and flooding threats to diminish overnight

National Weather Service forecasts rain through the evening, turning to drizzle by morning. No serious flooding threats are predicted overnight. Boulder County may continue to experience low level (nuisance) flooding on roadways and areal flooding (water rising up from the saturated ground) in some areas.

Looking ahead, NWS forecasts Wednesday afternoon showers and another system coming into range Thursday night into Friday. Then, spotty showers on Saturday and Sunday. Monday, the rain will start to clear out.

Residents should continue to be aware of the potential for rock or mud slide activity in the foothills and canyons. Please report any serious changes to the landscape (road damage, hill slides, excessive creek flooding, etc.) to 9-1-1. Non-emergency calls should be directed to dispatch at 303-441-4444. #COwx #boulderflood #COflood

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Low level storm activity expected until 6 p.m.

Low impact storm activity is predicted to continue through 6 p.m. Boulder OEM will continue to monitor weather while any flooding risks exist, but the threat of any serious flooding has diminished throughout the day.

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New Road Closure

47th Street between Jay Road and the Diagonal Highway is now closed. North County Line Road between 83rd and 95th is still closed as well.

Please continue to check for updated road closure information on City of Boulder roads and also for Boulder County road closures.

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Road Closures

N. County Line Road is now closed due to water over-topping the Little Thompson. We are closely monitoring N. 83rd Street and also 95th Street between Lookout Rd and Valmont Rd. due to encroaching water levels. You can visit: to monitor road conditions in the unincorporated county. Any City of Boulder road closures will be posted to

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Unincorporated Boulder County Road Closures and Areas of Concern

You can check this map for any road closures happening in unincorporated Boulder County. The map will be updated as changes occur.

For any City of Boulder road or path closures, please check

And as always, please remember:


Posted in Alert