The National Weather Service forecast office in Wilmington OH (Twitter link) has noted via tweets during the day on 18 December 2023 (link, link, link) that road visibility conditions are variable in the extreme as snow showers move through Indiana and Ohio. The Day Cloud Phase distinction imagery below at 1701, 1801... Read More

10-minute JMA Himawari-9 AHI Shortwave Infrared (3.9 µm) and Clean Infrared Window (10.4 µm) images (above) showed he development of a pyrocumulonimbus (pyroCb) cloud northwest of Tamworth (YSTW) in New South Wales, Australia on 18 December 2023. The coldest cloud-top Infrared Window brightness temperature was -53.4ºC at 1230 UTC.The southern flank of... Read More