SPM 09-26-2021: Getting Warmer Under Building High-Pressure

Issue Date: Sunday, September 26th, 2021
Issue Time: 9:00 AM MDT

Summary:

Saturday saw another day with the weather pattern across Colorado dominated by the building high-pressure ridge in the west. This, combined with very dry air, acted to prevent any rainfall and allowed for temperatures to continue to creep up well above seasonal normal. The map below shows yesterday’s high temperatures from all NWS reporting stations across Colorado. Highs were in the 80s (even reaching 90 degrees in a few spots) along the Western Slopes, Grand Valley, Urban Corridor, Raton Ridge, and Eastern Plains. The high elevations of the Northern, Central, San Juan, and Southeast Mountains were in the 70s, along with portions of the Palmer Ridge. As expected, no flooding was reported on Saturday.

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.