STP 09-29-2015: Welcomed Rain Re-Appeared Across Colorado

Issue Date: Tuesday, September 29th, 2015
Issue Time: 9:00 AM MDT


Behind the front that passed through eastern Colorado yesterday existed a cooler, moister air mass, as upslope flow transported moisture into the region. At the mid- and upper-levels, moisture streamed in steadily from the west. Together, the two moisture sources pushed IPW values above average for the date, between 0.8 and 1.0 inches at the four normal reporting stations (Grand Junction, Pueblo, Shriever AFB, and Boulder). Sprinkle in a shortwave and marginal instability, and we had a recipe for isolated-to-scattered showers and weak thunderstorms, with a few ongoing at this time.

Rain rates were not particularly impressive, so no flash flooding was reported/observed yesterday. Please see the STP map below for a look at precipitation totals from the last 24 hours.

Storm Total Precip Legend