** The GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testing. **A Suomi NPP VIIRS Day/Night Band (0.7 µm) image (above) revealed the formative stage of a mesoscale vortex over Lake Michigan at 0740 UTC or 2:40 AM Central time on 12 March 2017.During the subsequent daylight... Read More