Mid-latitude cyclone in the central US
5-minute GOES-16 Water Vapor (6.9 µm) images, with hourly precipitation type plotted in yellow [click to play MP4 animation]
A GOES-16 Mesoscale Sector provided 1-minute imagery over the Upper Midwest — “Red” Visible (0.64 µm) images (below) revealed some of the convective elements surrounding the surface low as it reached its occluded stage over Iowa. A small cluster of thunderstorms also developed over central Illinois around 19 UTC, producing 1.0-inch diameter hail.
Taking a closer look at the eastern portion of the previous satellite scene, there was an overlap between the M1 and M2 Mesoscale Sectors — this allowed for images at 30-second intervals (below).