Issue Date: Saturday, August 4th, 2018
Issue Time: 9:30 AM MDT
Summary:
An upper-level trough shifted through the region yesterday, pulling in monsoonal moisture from the southwest across Colorado. The plume of moisture provided the fuel for plenty of showers/thunderstorms yesterday; scattered for areas west of the Continental Divide, more widespread for areas east of the Divide. Activity was generally of the garden-variety, producing gusty winds and light-to-moderate rainfall. A couple of thunderstorms were stronger than the rest, resulting in the following storm reports to the National Weather Service:
1.50 inch hail: 2 miles NNE of Idalia (Yuma County)
0.75 inch hail: 6 miles NE of Idalia (Yuma County)
0.25 inch hail: Craig (Moffat County)
67 mph thunderstorm wind gust: 4 miles WSW of Lamar (Prowers County), 2 miles SSE of Gold Hill (Boulder County)
64 mph thunderstorm wind gust: 3 miles SSW of Boulder (Boulder County)
62 mph thunderstorm wind gust: 1 mile NW of Rocky Flats (Jefferson County)
Additionally, power outages were reported over portions of Northwest Denver due to thunderstorm wind damage last night. No flash flooding was observed yesterday. For a look at precipitation estimates in your area, please see 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 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 fire burn areas (post 2012), which are updated throughout the season to include new burn areas. The home button in the top left corner resets the map to the original zoom.
