10-minute Full Disk scan JMA Himawari-9 AHI Visible, Shortwave Infrared and Infrared Window images (above) showed multiple pulses of pyrocumulonimbus (pyroCb) clouds that were spawned by a large bushfire in southwest Queensland, Australia on 13 December 2025. The pyroCb cloud pulses exhibited a cloud-top 10.4 µm infrared brightness temperature (IRBT) of... Read More
10-minute Full Disk scan GOES-18 (GOES-West) daytime True Color RGB and nighttime Dust RGB images created by Geo2Grid (above) highlighted plumes of glacial silt being transported offshore by strong katabatic winds that were occurring in the northern Alaska panhandle on 09-10 December 2025. Note the strong pressure gradient between a ridge of... Read More
While longtime residents of the Great Lakes region are familiar with lake breezes, their opposite, land breezes can also impact local weather conditions. In the spring and summer, the density difference in the air over the warm land and the cool lake induces a breeze that blows cold air ashore.... Read More
5-minute PACUS Sector GOES-18 (GOES-West) Shortwave Infrared images (above) displayed the pronounced thermal signature associated with an eruption of Kilauea on the Big Island of Hawai`i on 06 December 2025. According to the Hawaiian Volcano Observatory, this Episode 38 of the ongoing Halema`uma`u eruption (Episode 1 started on 23 December 2024) began at 1845 UTC... Read More
