An SPC Day 1 Moderate Risk for severe thunderstorms was issued for March 28, 2017 as yet another potent shortwave trough moved through the southern Plains. SPC requested GOES-East Rapid scan mode, and both GOES-16 mesoscale sectors were moved over the moderate risk area, meaning 30-sec imagery was available.
Below is a side-by-side comparison of GOES-16 0.5 km visible 30-sec imagery and 1-min imagery. The scene is of rapidly developing convection among mature storms. Overshooting tops and above-anvil cirrus plumes are apparent, indicators of strong-to-severe convection. When compared side-by-side, the 30-sec imagery does indeed have a slightly smoother appearance.
-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.”