GOES-15 0.63 µm visible channel images (above; click image to play animation) showed a distinct hazy plume streaming southeastward from the Katmai volcano area in Alaska on 22 September 2013. This was a signature of re-suspended volcanic ash — a deep layer of ash has remained on the ground near... Read More
A cold front moving through Wisconsin triggered severe convection (SPC storm reports) on 21 August 2013. GOES-14 SRSO-R data gives a compelling look at the convective development at 1-minute intervals. Because of the satellite position, the rear inflow into the convection near Rice Lake, WI, is very... Read More
A comparison of AWIPS images of 1-km resolution Suomi NPP VIIRS 0.64 µm visible channel and 11.45 µm IR channel data at 18:35 UTC on 15 August 2013 (above) showed a number of organized clusters of deep convection which where generally located along... Read More
SRSO-R GOES-14 1-minute imagery shows the dynamic nature of the cirrus canopy over developing convection. Strong convection over Montana includes multiple overshooting tops that are visible in the GOES-14 imagery. Routine GOES-15 imagery, also shown, lacks the temporal resolution to capture the growth and decay of many cloud-top features. This is... Read More
