5-minute CONUS Sector GOES-19 (GOES-East) Microphysics RGB images with an overlay of Next Generation Fire System (NGFS) Fire Detection polygons (above) showed the thermal signature of a fire that resulted from an explosion at the Valero oil refinery in Port Arthur, Texas late in the day on 23 March 2026. The initial NGFS thermal signature... Read More

5-minute CONUS Sector GOES-18 (GOES-West) Infrared images viewed using RealEarth (above) displayed deep convection (with intermittent GLM-indicated lightning activity) that moved across the Hawaiian island of O’ahu on 20 March 2026 — producing heavy rainfall and flash flooding.The first Flash Flood Warning for O’ahu on that day was issued at 0857 UTC,... Read More

2.5-minute Target Sector JMA Himawari-9 AHI Infrared images (above) showed Cyclone Narelle as it was rapidly intensifying over the Coral Sea on 18 March 2026 — becoming a Category 2 storm by 1200 UTC, a Category 3 storm by 1800 UTC and a Category 4 storm by 0000 UTC (ADT... Read More

5-minute CONUS Sector GOES-19 (GOES-East) Visible images with an overlay of GLM Flash Extent Density (above) showed the signature of a high-altitude bolide that was moving from southwestern Lake Erie toward far northern Ohio during the 5-minute period ending at 1301 UTC on 17 March 2026. This bolide created a sonic boom that was... Read More