SPM 09-20-2022: Swath of Heavier Rain for Portions of Southeast Plains

Issue Date: Tuesday, September 20th, 2022
Issue Time: 11:00 AM MDT


Monday featured mostly dry conditions across the state as the upper-level ridge continued to influence our weather, although three regions did observe some precipitation. The first region was the Grand Valley near Grand Junction, with very light amounts not exceeding 0.10”. The second region, which also saw very light rainfall amounts, was over and near the Palmer Ridge, with gauge observations again not exceeding 0.10”.

The last region, which experienced the heaviest precipitation, was a narrow swath from the Raton Ridge east-northeastward across the Southeast Plains and into Prowers County/western Kansas. Showers and storms that moved off the Ridge produced generally 0.25” or less, except across eastern Prowers where QPE data suggests amounts approaching and exceeding 1.00”. The highest rain gauge observation in Colorado associated with this precipitation was 0.30” from a CoCoRaHS observer near Holly; however, a few miles east of the border in Kansas saw observations of 1.16” and 0.95” near Coolidge.

No flooding was reported yesterday. For precipitation estimates in our area, check out the map below. Remember, if you observe flooding in your area, you can use the “Report a Flood” page to make a flood report when you can safely do so.

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 accumulation ending time is 7AM of the date shown in the bottom right corner. Also shown optionally are vulnerable fire burn areas (post 2012), which are updated throughout the season to include new, vulnerable burn areas. The home button in the top left corner resets the map to the original zoom.