On May 8, Colorado experienced its first widespread severe convective event of the 2017 season. Storms developed across the eastern half of the state by early afternoon in response to a closed upper low slowly shifting east toward the region. Given the setup, storms moved from south to north across the state, producing widespread large hail and heavy rainfall. Below is a GOES-16 0.64 um visible imagery animation of storm development and evolution across the state from 1802 UTC – 2357 UTC. Strong updraft signatures are obvious with many of the storms in the 0.5 km imagery, including overshooting tops and above anvil cirrus plumes.

1802 UTC – 2357 UTC 08 May 2017 GOES-16 0.64 um VIS. Full resolution: https://satelliteliaisonblog.files.wordpress.com/2017/05/20170508_vis_convection3_anno.gif
– Bill Line, NWS
“The GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testing. Users bear all responsibility for inspecting the data prior to use and for the manner in which the data are utilized.”