1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) images (above) showed thunderstorms which produced large hail and tornadoes in far southeastern Montana and far northwestern South Dakota (SPC storm reports | NWS Billings | NWS Rapid City) on 28 June 2018. The pulsing nature of the parent storm’s overshooting tops was very apparent in the animation.The corresponding GOES-16... Read More

GOES-16 (GOES-East) “Red” Visible (0.64 µm) images (above) showed a large Mesoscale Convective System (MCS) which produced a long-lived path of large hail and damaging winds from eastern Nebraska to western Tennessee on 28 June 2018. The length and duration of damaging wind events (SPC storm reports) qualified this event as a derecho.The corresponding GOES-16... Read More

Comparisons of NOAA-20 and Suomi NPP VIIRS Day/Night Band (0.7 µm) and “Fog Product” Infrared Brightness Temperature Difference images (above) showed the nighttime formation of river valley fog in parts of the Mississippi River and its tributaries in Minnesota, Wisconsin and Iowa on 28 June 2018.  Due to ample illumination... Read More