Damaging waves hit the Marshall Islands on 19 January 2024, causing considerable damage, and the northern shores of American Samoa on 22 January 2024, leaving behind considerable debris, as shown below (photos courtesy NWS Pago Pago). The waves could be tracked using Altimetric data as viewed at this NOAA/NESDIS website; data for the globe and also data around... Read More
Target Sector (2.5-minute interval) JMA Himawari-9 AHI Clean Infrared Window (10.4 µm) images (above) showed Tropical Invest 90P as it moved westward across the Coral Sea on 20 January 2024. Intermittent convective bursts within the growing cold cloud canopy contained multiple overshooting tops that exhibited infrared brightness temperatures of -100ºC or colder (internal clusters of red pixels... Read More
LightningCast probability fields are routinely produced at CIMSS and incorporated into a RealEarth display (LightningCast probability fields are also available in some National Weather Service AWIPS machines). An example of LightningCast is shown below over Southern Florida. Contours show the probability of a GLM observation of lightning within the next 60 minutes:... 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
