Overlapping 1-minute Mesoscale Domain Sectors provided 30-second GOES-18 (GOES-West) Infrared Window images of Hurricane Polo (above) as it rapidly intensified from a Category 1 to a high-end Category 3 storm late in the day on 21 September 2026. An eye became apparent by the end of the animation (the overlapping Mesoscale... Read More

10-minute Full Disk scan GOES-19 (GOES-East) Infrared Window images (above) showed the evolution of Tropical Storm Fay in the East Atlantic Ocean on 20 September 2026. As of 0300 UTC on 21 September — the last image of the animation — NHC rated Fay’s wind speed at 60 knots (just 4 knots below... Read More

1-minute Mesoscale Domain Sector GOES-18 (GOES-West) Infrared Window images (above) showed Category 2 Hurricane Lowell as its center moved northeastward (track) and passed about 40 miles west of the Hawaiian island of Ni’ihau on 08 September 2026. While sparse, 1-minute GOES-18 GLM Flash Points did indicate that some intermittent lightning activity... Read More

1-minute Mesoscale Domain Sector GOES-18 (GOES-West) Visible images (above) revealed mesovortices within the eye of Hurricane Lowell as it reached Category 5 intensity over the Central Pacific by 2100 UTC on 02 September 2026. Plots of 1-minute GOES-18 GLM Flash Points highlighted the intermittent lighting activity within the surrounding eyewall.A larger-scale view... Read More