** GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testing **1-minute interval Mesoscale Sector GOES-16 Visible (0.64 µm) and Infrared Window (10.3 µm) images (above) showed the rapid development of convection across northern Illinois and southern Wisconsin on 14 June 2017. SPC storm reports indicated that these storms produced widespread hail, damaging... Read More
A large Mesoscale Convective System (MCS) developed and intensified over western South Dakota during the nighttime hours of 10 June – 11 June 2017, evolving into a bow echo that spread a swath of hail and strong winds from central/eastern South Dakota across Minnesota and into Wisconsin and Michigan (SPC storm reports: 10 June... Read More
High winds associated with a strong cold frontal passage were responsible for 16 fatalities and 168 injuries in Moscow, Russia on 29 May 2017 (CNN | BBC). EUMETSAT Meteosat-10 High Resolution Visible (0.8 µm) and Infrared Window (10.8 µm) images (above; MP4 ) showed the cluster of thunderstorms that moved... Read More
* The GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testing. *A significant outbreak of severe thunderstorms developed on 16 May 2017, producing damaging winds, large hail and tornadoes from Texas to Wisconsin (SPC storm reports). On the northern end of this outbreak, hail as large as 3.0 inches... Read More
