Issue Date: Sunday, August 26th, 2018
Issue Time: 9:30 AM MDT
Summary:
Ahead of an approaching upper-level trough, southwesterly flow aloft brought an increase in moisture to Colorado, providing the fuel for scattered showers and thunderstorms across the state. The best rainfall, in terms of coverage and persistence, was across the higher terrain of the Southwest Slope and San Juan Mountains regions. Showers and thunderstorms in that area began before lunchtime, and continued well into the nighttime hours, producing rainfall totals that were generally between 0.25-0.75 inches, with a report as high as 1.31 inches in La Plata County. East of the Mountains, where low-level moisture and instability was favorable, a few strong thunderstorms rumbled, producing small hail, strong winds, and periods of heavy rainfall. The rainfall “winner” of the day came from Yuma County, where 2.19 inches of rain was observed from multiple rounds of thunderstorms through the afternoon and evening hours.
No flash flooding was reported yesterday. For a look at precipitation estimates in your area, please see the State Precipitation Map below.
Click Here For Map Overview
The map below shows radar-estimated, rainfall gage-adjusted Quantitative Precipitation Estimates (QPE) across Colorado. The map is updated daily during the operational season (May 1 – Sep 30) by 11AM. The following six layers are currently available: 24-hour, 48-hour and 72-hour total precipitation, as well as maximum 1-hour, 2-hour and 6-hour precipitation over the past 24 hour period (to estimate where flash flooding may have occurred). The 24-hour, 48-hour and 72-hour total precipitation contain bias corrections that are not disaggregated into the hourly estimates, so there will likely be some differences. The accumulation ending time is 7AM of the date shown in the bottom right corner. Also shown optionally are fire burn areas (post 2012), which are updated throughout the season to include new burn areas. The home button in the top left corner resets the map to the original zoom.
