Cooler temps, tracking storms with heavy rainfall, localized flooding possible

FORECAST BY: 9NEWS Weather Impact Team Meteorologist Chris Bianchi

It is very muggy outside Tuesday morning, and in fact, this morning Denver tied its highest dewpoint (a measure of the amount of moisture in the atmosphere) in 17 years.

That moisture will fuel stronger showers and storms later today, however, these are slow movers, meaning that flash flooding will be our main concern. Storms will have only about 40 percent coverage in the Denver area with a fairly low severe weather threat, though it'll be higher across the northeastern plains.

RELATED: Denver ties 17-year dewpoint record as thunderstorms loom

Wednesday is our primary point of concern, with a notable flash flood risk for slow-moving storms and tons of low-level moisture.

The 9NEWS Weather Impact Team issued a Weather Impact Alert for Wednesday from 1 p.m. to 11 p.m. for the threat of heavy rainfall and localized flooding in the Denver metro area and eastern plains.

Some computer forecast models are showing impressive rain totals across eastern Colorado for Wednesday-Friday thanks to a deep plume of tropical, monsoonal moisture, however, we're thinking totals will generally lean a bit lighter than some modeling.