![](\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2026\/03\/G19_VIS_IR_MI_SPC_06MAR2026_loop_GOES-19_2026065_191117_2026065_220117.gif\")
<\/a>5-minute GOES-19 Visible images (0.64 \u00b5m, top) and Infrared images (10.3 \u00b5m, bottom) with SPC Storm Reports in red\/blue, from 1911-2201 UTC on 06 March [click to play animated GIF]<\/p><\/div>5-minute CONUS Sector GOES-19 (GOES-East)<\/em>\u00a0Visible and Infrared images (above)<\/em><\/strong> showed a supercell thunderstorm that developed in northern Indiana and tracked northeast across far southern Lower Michigan on 06 March 2026<\/a><\/strong>. This thunderstorm formed in the vicinity of a warm front (surface analyses<\/strong><\/a>) that was moving northward across the region — surface plots indicated that air temperatures behind the warm front rose into the low-mid 70s F, with dew points in the 60s F. This supercell produced 4 tornadoes (one rated EF0, one rated EF1, one rated EF2 and one rated EF3) that were responsible for 4 fatalities and numerous injuries (NWS ILX summary<\/strong><\/a>).<\/p>\n Note that surface observations at the Three Rivers Municipal Airport (KHAI) ceased after 2035 UTC (below)<\/strong><\/em> — apparently due a tornado-related power outage (KHAI surface observations resumed 24 hours later).<\/p>\n Plot of surface observation data from Three Rivers Municipal Airport on 06 March [click to enlarge]<\/p><\/div>The ProbSevere IntenseStormNet<\/strong><\/a> product (below)<\/em><\/strong>\u00a0began to depict >50% probabilities of intense convection at 2011 UTC<\/strong><\/a> — the time when cloud-top infrared brightness temperatures were rapidly cooling, GLM<\/strong><\/a> Flash Extent Density was increasing, and tornadoes were being reported north and northeast of Edwardsburg (SPC Storm Reports<\/strong><\/a>).<\/p>\n 5-minute GOES-19 Infrared (10.3 \u00b5m) images (with\/without an overlay of GLM Flash Extent Density) which included contours of IntenseStormNet probability and plots of SPC Storm Reports (red=tornado, green=hail, blue=wind), from 2001-2141 UTC on 06 March [click to play MP4 animation]<\/p><\/div>\n _____________________________________<\/p>\n Several hours later, 1-minute Mesoscale Domain Sector GOES-19 infrared images (below)<\/em><\/strong> showed a large cluster of supercell thunderstorms over northeast Oklahoma. One of the tornadoes was responsible for 2 fatalities near Beggs OK around 0119 UTC<\/strong><\/a>.<\/p>\n 1-minute GOES-19 Clean Infrared Window (10.3 \u00b5m) images, with time-matched (+\/- 3 minutes) SPC Storm Reports plotted in blue, from 0000-0259 UTC on 07 March [click to play animated GIF]<\/p><\/div>Around the time that the northernmost supercell began to produce tornadoes, it exhibited a notable Enhanced-V<\/strong><\/a> storm-top signature along with a subtle Above-Anvil Cirrus Plume<\/strong><\/a> in GOES-19 Infrared and Visible images, respectively (below)<\/em><\/strong>.<\/p>\n GOES-19 Infrared (10.3 \u00b5m) and Visible (0.64 \u00b5m) images at 0000 UTC on 07 March, showing Enhanced-V and Above-Anvil Cirrus Plume cloud-top signatures over northeast Oklahoma [click to enlarge]<\/p><\/div>1-minute GOES-19 Infrared images with an overlay of GLM Flash Points (below)<\/strong><\/em>\u00a0depicted abundant lightning activity with these storms.<\/p>\n<\/a><\/a><\/a><\/a>