SPM 06-04-2019: Afternoon Convection for the Mountains and Eastern Plains

Issue Date: Tuesday, June 4th, 2019
Issue Time: 9:10AM MDT

Summary:

Another afternoon of thunderstorms fired over the high terrains and Palmer/Raton Ridges yesterday as a ridge built over the state. Low level moisture dropped off from Sunday, so the threat for heavy rainfall decreased. By early afternoon, some decent Severe Thunderstorms formed over the eastern plains. A landspout was reported in Logan County with another funnel reported in Cheyenne County. A gust of 68 mph was measured with the storm that produced the funnel. 24-hour totals were measured at 0.75 inches with max 1-hour rain rates up to 1.2 inches. Another thunderstorm formed over Colorado Springs and produced 1 inch hail. Maximum totals in the area were estimated at 0.5 inches. Over the mountains the stronger storms produced isolated rainfall totals of 0.5 inches favoring the Front Range for accumulation. Weak thunderstorms over Hotchkiss and Montrose, CO produce 0.25 inch hail and precipitation totals of 0.15 inches.

An Areal Flood Advisory was issued for the Mancos River in Montezuma County again for minor lowland flooding. A Flood Warning was issued for the San Antonio and Conejos Rivers in southeastern Conejos County through Thursday morning. The flow was reported as slightly above bankfull, so minor lowland flooding may have occurred though the gage has not reached above the Action stage yet. Flooding was not reported as of this morning from Monday.

To see estimated precipitation totals over your area yesterday, scroll down to 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 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.