GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testingSoftball-sized hail fell in northwestern Iowa on Thursday afternoon, 29 June (Storm Prediction Center Storm Reports). The visible animation above, from 1902 to 2307 UTC, shows the rapid development of convection over far northeast Nebraska. Woodbury County in Iowa is outlined... Read More

GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testingConsider the visible image above. Can you tell where the eastern and southern edge of the cirrus shield is over the eastern United States? When the Sun is not on the horizon, thin cirrus can be very... Read More

** GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testing **Clusters of severe thunderstorms developed over eastern Wyoming and the Nebraska panhandle during the afternoon on 27 June 2017, and increased in areal coverage and intensity as they moved eastward into the overnight hours. 1-minute interval Mesoscale Sector... Read More

** GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testing **Dora became the first hurricane of the Eastern Pacific 2017 season on 26 June, and was also the first hurricane to be sampled by GOES-16. On Visible (0.64 µm) and Infrared Window (10.3 µm) images (above), Dora... Read More