![](\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2025\/04\/G19_VIS_IR_TX_SPC_29APR2025_loop_GOES-19_2025119_192055_2025120_001055.gif\")
<\/a>1-minute GOES-19 \u201cRed\u201d Visible (0.64 \u00b5m, top) and \u201cClean\u201d Infrared Window (10.3 \u00b5m, bottom) images with time-matched (+\/- 3 minutes) SPC Storm Reports plotted in red\/white, from 1920 UTC on 29 April to 0010 UTC on 30 April [click to play animated GIF | MP4<\/strong><\/a>]<\/p><\/div>1-minute Mesoscale Domain Sector<\/strong><\/a> GOES-19 (GOES-East)<\/em> \u201cRed\u201d Visible (0.64 \u00b5m) and \u201cClean\u201d Infrared Window (10.3 \u00b5m) images (above)<\/strong><\/em> showed thunderstorms that produced giant hail (as large as 5.00 inches in diameter<\/strong><\/a>) and damaging wind gusts (as high as 106 mph<\/strong><\/a>) across the Texas Panhandle and North Texas (SPC Storm Reports<\/strong><\/a>) on 29 April 2025<\/strong><\/a>. The Infrared images revealed pulses of thunderstorm overshooting tops that exhibited 10.3 \u00b5m brightness temperatures as cold as -78\u00baC (brighter white pixels embedded within dark black regions) — and the signature of an Above-Anvil Cirrus Plume (reference<\/strong><\/a>) was evident in Visible imagery (although the warmer AACP signature was less distinct in the lower-resolution Infrared images).<\/p>\n According to a plot of rawinsonde data (source<\/strong><\/a>) from Fort Worth, Texas at 0000 UTC on 30 April (below)<\/strong><\/em>, the coldest GOES-19 cloud-top infrared brightness temperature of -78\u00baC represented a ~1.5 km overshoot of the Most Unstable air parcel Equilibrium Level (MU EL).<\/p>\n Plot of rawinsonde data from Fort Worth, Texas at 0000 UTC on 30 April [click to enlarge]<\/p><\/div>GOES-19 Visible images with plots of GLM<\/strong><\/a> Flash Points (below)<\/strong><\/em> displayed abundant lightning activity associated with these supercell thunderstorms — which were generally focused in the vicinity of a quasi-stationary frontal boundary.<\/p>\n<\/a>