1-minute Mesoscale Domain Sector GOES-18 (GOES-West) Infrared Window and Visible images (above) showed Tropical Storm Lala as it intensified to become a Category 1 Hurricane at 1900 UTC (GOES-18 images | NHC advisory) south of the Big Island of Hawai`i on 15 August 2026. An overlay of 1-minute GOES-18 GLM Flash Points... Read More

1-minute Mesoscale Domain Sector GOES-18 (GOES-West) Visible images (above) and Infrared Window images (below) showed the slow organization of cloud features associated with Tropical Storm Lala southeast of Hawai’i on 13 August 2026. Overlays of GOES-18 GLM Flash Points indicated that lightning activity was sparse during that time period. Lala was moving... Read More

10-minute Full Disk scan Near-Infrared “Vegetation” images from GOES-18/GOES-West (above) and GOES-19/GOES-East (below) revealed the shadow of a total solar eclipse on 12 August 2026 — which began by moving eastward across far northern Alaska and Arctic Canada, then curved southeast across Greenland, Iceland and far western Europe before fading from view... Read More

1-minute Mesoscale Domain Sector GOES-19 (GOES-East) Visible images (above) and Infrared Window images (below) included time-matched plots of SPC Storm Reports — which showed thunderstorms that produced several tornadoes and wind gusts as high as 97 mph in Illinois, and hail as large as 3.00″ in diameter in Indiana. The high concentration... Read More