Issue Date: Sunday, June 20, 2021
Issue Time: 9:30 AM MDT
Summary:
Scattered thunderstorms began to develop in the high elevations of the Northern, Central, and Front Range Mountains in the early afternoon yesterday. As the storms progressed eastward, they tapped into additional moisture and instability, which allowed for larger and better organized lines of thunderstorms. This resulted in severe weather up and down the entire eastern half of the state yesterday. High winds and damaging hail were the biggest threats, and high wind reports were made from the Nebraska Border to the Oklahoma Border, including a 92 mph wind gust in Limon! Large hail, up to 1.25 inches, and several reports of a land spout tornadoes were made in Eastern Adams County in the Northeast Plains. In additional to the severe thunderstorms, widespread 0.25-0.50 inches of rain fell across much of the Northeast Plains, as seen on the map below.
Elsewhere, evening flash flood warnings were issued for the Junkins and Decker fire burn scars in the Central and Southeast Mountains as storms trained from west to east, however no actual flooding was reported. On the Western Slope, storms were less organized but some isolated showers dropped measurable precipitation, though generally light enough to not appear in the map below.
Flooding was not reported on Saturday. For rainfall estimates in your area, check out the State Precipitation map below.
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