Overlapping 1-minute Mesoscale Domain Sectors provided GOES-19 (GOES-East) images at 30-second intervals — Infrared Window imagery (above) showed Hurricane Isaias moving toward the US Gulf Coast on 09 October 2026. Isaias reached Category 3 intensity at 1220 UTC (Infrared image | NHC advisory). The coldest cloud-top infrared brightness temperatures were in the -85... Read More

Tropical Storm Isaias reached hurricane intensity at 0330 UTC on 08 October 2026 — becoming the first Atlantic Basin (which includes the Gulf of Mexico) hurricane of the 2026 season. 1-minute Mesoscale Domain Sector GOES-19 (GOES-East) Infrared Window images (above) showed the deep convection in the vicinity of the surface storm center of... Read More

1-minute Mesoscale Domain Sector GOES-19 (GOES-East) Infrared Window images (above) showed Tropical Depression Nine on 06 October 2026 as it eventually developed into Tropical Storm Isaias in the southern Gulf by 0900 UTC on 07 October. Plots of GLM Flash Points depicted the lightning activity within the slowly-organizing tropical storm. The coldest... Read More

It’s time to grab an apple cider donut and a pumpkin spice latte if you’re in the upper Midwest, because fall has arrived in the northern regions of the central United States. In the upper peninsula of Michigan, freeze warnings are out, and while other parts of the Midwest might... Read More