Severe thunderstorms affected much of the Upper Midwest on 11 July 2020 — and 1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) images (above) showed two separate clusters of thunderstorms that moved southeastward across Iowa, producing large hail and damaging winds (SPC Storm Reports). The initial round of storms produced a curved outflow boundary across central and... Read More