SPM 05-20-2018: Abundant Rain in Northeast Corner, Spotty Light Rain Elsewhere

Issue Date: 5/20/2018
Issue Time: 12:10 PM

Summary:

Moisture from the Friday night/Saturday morning impulse continued to wrap back into northeastern parts of the state on Saturday morning. Areas along and northeast of a Wellington-Greeley-Last Chance line received at least 0.25” of rain on Saturday, mostly in the form of showers and drizzle that persisted until around mid-day. The top rainfall reports for the day were almost all from the northeast corner, with the exception of one station in Routt County on the western slope:

• 1.76” at Fleming 6.6 S (Logan Co.)
• 1.29” at Oak Creek 4.7 E (Routt Co.)
• 1.18” at Hillrose 1.2 NE (Morgan Co.)
• 1.12” at Akron (Washington Co.)
• 1.08” at Hillrose 2.5 SSW (Morgan Co.)

Spotty showers also occurred across the high terrain in essentially all parts of the state except the San Juan Mountains, but rainfall totals were generally light (0.25” or less). A few thunderstorms tracked across the Southeast Plains and Raton Ridge as well, producing pockets of 0.25” – 0.75” of rain across Las Animas and Baca counties.

Flooding occurred just north of the border in southeastern Wyoming and western Nebraska, but was not reported in Colorado on Saturday. For rainfall estimates in your area, check out our 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 accumulation ending time is 6AM of the date shown in the bottom right corner. Also shown optionally are fire burn areas since 2012. The home button in the top left corner resets the map to the original zoom.

Note: We have identified a possible underestimation in QPE over the southwest part of the state. We are working to on this issue, and will provide an update as soon as possible.