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Ended official alertUpdated

Flood Advisory for Boulder, CO; Larimer, CO

This alert has ended.Kept for recent context. Do not use it as a current warning.

Official alert fields

What you need to know

Applies to
Boulder, Larimer
Effective
Ended
Official severity
Minor
Official urgency
Expected
Official certainty
Likely

What is happening

What: Flooding caused by excessive rainfall continues. Impacts: Minor flooding in low-lying and poor drainage areas. Where: South Central Larimer County in north central Colorado... Northeastern Boulder County in northeastern Colorado... When: Until 500 PM MDT.

What the bulletin says to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Excessive runoff from heavy rainfall will cause minor flooding of creeks and streams, roads and roadside culverts. The heavy rains could also trigger rock slides or debris flows in steep terrain.

Read official NWS bulletin

Full official description

Bulletin details

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...South Central Larimer County in north central Colorado... Northeastern Boulder County in northeastern Colorado... * WHEN...Until 500 PM MDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... At 356 PM MDT, Doppler radar and automated rain gauges indicated heavy rain fell due to thunderstorms. Minor flooding is ongoing in the advisory area. Between 1.0 and 1.75 inches of rain have fallen. Shower will continue through the early evening. This includes the following streams and drainages... Saint Vrain Creek, North Fork Little Thompson River, Little Thompson River, West Fork Little Thompson River, North Saint Vrain Creek and Dry Creek. Some locations that will experience flooding include... Pinewood Springs.

Lifecycle record

Official revisions

2 captured
  1. Update

    Flood Advisory issued July 28 at 3:56PM MDT until July 28 at 5:00PM MDT by NWS Denver CO

    Official revision
  2. Alert

    Flood Advisory issued July 28 at 2:28PM MDT until July 28 at 4:00PM MDT by NWS Denver CO

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Denver CO. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Update
Last collected
Methodology and corrections