5-minute CONUS Sector GOES-18 (GOES-West) and GOES-19 (GOES-East) Nighttime Microphysics RGB + daytime True Color RGB images from the GeoSphere site (above) showed a lake effect cloud plume that developed over the southern half of Great Salt Lake on 17 April 2026 — which produced a swath of light snowfall downwind (southeast) of the lake... Read More
1-minute Mesoscale Domain Sector GOES-19 (GOES-East) Infrared images (above) included plots of 1-minute GLM Flash Points (which are parallax-corrected to correspond to their surface locations) — and showed an increase in thunderstorm coverage and lightning activity across southeastern Wisconsin late in the day on 15 April 2026.Unfortunately, one lightning-related fatality occurred south of... Read More
1-minute Mesoscale Domain Sector GOES-19 (GOES-East) Visible images (above) included time-matched (+/- 3 minutes) plots of SPC Storm Reports — which showed the tornadoes, large hail (up to 4.00″ in diameter) and damaging winds (as high as 88 mph) that occurred across much of southern Wisconsin (along with adjacent parts of far northeast Iowa and far... Read More
1-minute Mesoscale Domain Sector GOES-19 (GOES-East) Visible images that included overlays of GLM Flash Points and the Fire Mask derived product (above) showed a cluster of thunderstorms that was moving eastward across the Texas Panhandle late in the day on 09 April 2026. Frequent lightning activity associated with this convection ignited... Read More
