National Weather Service United States Department of Commerce

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Overview

    An easterly flow of moist, unstable air was in place across the High Plains. Easterly flow brought this instability to the foothills of the Rockies where numerous thunderstorms developed in the afternoon and early evening. Winds aloft where out of the west in excess of 60 mph, creating strong wind shear needed for severe thunderstorms to develop. Several rotating storms called supercells formed in eastern Colorado causing baseball size hail, at least 1 tornado and a measured 97 mph wind gust at the Burlington airport. The image below is a visible satellite image taken at 201 PM MDT. If you look close you can see an area of developing cumulus over the Goodland area that would represent the area of strongest instability, where the strongest storms eventually moved along.

 

Satellite Image and surface MSLP and observations 201 PM MDT 6/8/24 (click to enlarge)
2 PM MDT GOES East Visible Imagery, MSLP and surface obs. Image from College of Dupage
 
nws logo Media use of NWS Web News Stories is encouraged!
Please acknowledge the NWS as the source of any news information accessed from this site.
nws logo