Denver, Colo. – Outdoor plans across Colorado’s Front Range could be disrupted Thursday afternoon as another round of thunderstorms brings the risk of flash flooding, frequent lightning and heavy rainfall capable of overwhelming vulnerable areas in a short time.
According to the National Weather Service in Denver/Boulder, scattered to numerous showers and thunderstorms are expected to develop Thursday afternoon and continue into the evening. Some storms could produce 2 to 3 inches of localized rainfall, creating an isolated flash flood threat, especially across recent burn scars and locations that have already received significant rainfall over the past several days.
The greatest concerns include rapidly rising water in creeks, streams, low-water crossings and poor drainage areas. Burn scars remain particularly susceptible to dangerous runoff and debris flows because scorched ground absorbs little rainfall, allowing water to rush downhill quickly.
In addition to heavy rain, storms may bring frequent cloud-to-ground lightning, gusty winds and small hail, creating hazardous conditions for hikers, campers, outdoor events and evening commuters. Motorists should never drive through flooded roadways and should be prepared for rapidly changing visibility during downpours.
Residents across the Denver metro area and the Front Range should monitor weather alerts throughout Thursday and have a way to receive warnings if thunderstorms develop nearby. Anyone spending time outdoors should move to a sturdy building immediately after hearing thunder, as lightning can strike well ahead of a storm.
The unsettled weather pattern is expected to continue through Thursday evening, and additional watches or warnings may be issued if storms become more intense or flash flooding develops.
