5-minute CONUS Sector GOES-19 (GOES-East) Visible images (above) showed a rapidly intensifying Hurricane Force Low (surface analyses) that was approaching Atlantic Canada on 04 November 2025.Two examples of Metop ASCAT surface scatterometer winds having speed values greater than Category 1 hurricane intensity are shown below. 5-minute GOES-19 Water Vapor images (below) depicted a mid-tropospheric... Read More

1-minute Mesoscale Domain Sector GOES-19 (GOES-East) Visible and Infrared images (above) showed Category 5 Hurricane Melissa as it made landfall along the far southwest coast of Jamaica around 1700 UTC on 28 October 2025. Low-altitude mesovortices were evident within the eye — and GLM Flash Points revealed abundant lightning activity within the inner... Read More

1-minute Mesoscale Domain Sector GOES-19 (GOES-East) Visible images (above) showed Hurricane Humberto as it intensified from a Category 4 to a Category 5 storm on 27 September 2025 (Humberto became the second Category 5 storm in the Atlantic Basin this season — with Erin being the first). Low-altitude mesovortices were evident within... Read More

2.5-minute Target Sector JMA Himawari-9 Infrared images (above) showed Ragasa as it intensified from a Category 4 Typhoon at 0000 UTC on 21 September 2025 to a Category 5 (140-knot) Super Typhoon at 0600 UTC and then further to a 145-knot Super Typhoon by 1200 UTC (SATCON). There was a... Read More