SPM 09-23-2022: Continuation of Late-Season Rain for Southwest Portions of the State

Issue Date: Friday, September 23rd, 2022
Issue Time: 9:40 AM MDT


Rain continued across the state for the first half of the day on Thursday, albeit less widespread than on Wednesday; dry air began filtering in by late afternoon and clearing out the showers and storms. Many of the same regions experienced the highest precipitation totals, including the San Juan/Central Mountains and Southwest Slope, where QPE data suggests fairly widespread totals of 0.50-1.00”. These estimates are confirmed by rain gauge observations, including:

• 0.95” south of Durango
• 0.92” near Redmesa
• 0.75” near Durango
• 0.75” near Pagosa Springs
• 0.70” near Taylor Park Reservoir
• 0.68” near South Fork
• 0.50” north of Paonia
• 0.47” southwest of Uncompahgre Peak

Other regions that saw some of the heaviest precipitation totals include the Southeast Mountains southeastward across the Raton Ridge, where QPE data suggests similar totals of 0.50-1.00”. Rain gauge coverage is sparse, but these estimates are also confirmed by observations, including 0.91” south of Trinidad and 0.60” near Custer.

Elsewhere across the state, totals were light, with generally T-0.25” across the Grand Valley/Northwest Slope/Northern Mountains and T-0.15” across the Front Range/Urban Corridor/Palmer Ridge/Plains. On the backside of this departing system, dense fog was observed early this morning for many locations east of the Divide:

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.