Friday, August 22, 2014, 11 AM MDT
A developing southward dip in the polar jet stream located to the west of Colorado caused more moisture than expected to surge northward into the Front Range region. It’s not very often we wake up to thunder in the morning! The atmosphere remains moist, so numerous showers and thundershowers are likely to redevelop today, and a few spots may get heavy downpours.
The dip in the polar jet stream should move across the Rockies this weekend and keep temperature a bit cooler than average, especially Sunday, but nowhere near record cool. The coverage of thundershowers should decrease this weekend, but the threat should till be around. It might get quite cool during showers along some of the high elevation trails in the state.
Still another cool front should move across the state in the Tuesday time frame, and may bring with it another period with greater coverage of showers.