The AMSR-2 89-GHz brightness temperature image above (courtesy Brandon Aydlett, WFO GUM), from 1628 UTC on 22 May 2024 (downloaded at the Guam National Weather Service Direct Broadcast antenna and processed with CSPP software) shows curved convective bands around the center of Invest 93W in the western Pacific between Guam... Read More

EUMETSAT Meteosat-9 Infrared Window (10.8 µm) images (above) showed Cyclone Hidaya as it intensified from a Tropical Storm (at 1200 UTC on 02 May) to Category 1 Hurricane intensity at 0000 UTC on 03 May 2024 (advisory | discussion). JTWC later noted that Hidaya had become the most intense tropical... Read More

GOES-16 True Color RGB images from the CSPP GeoSphere site (above) showed multiple mesoscale vortices embedded within the exposed Low-Level Circulation Center (LLCC) of a Tropical Depression off the southeast coast of Brazil on 18 February 2024. This disturbance continued to organize and gradually intensify during the day and into the... Read More

As tropical storm Nat moves away from the Samoan Islands and towards Tahiti, another Invest area, 98P, has developed north of the Samoan Islands. The animation above, from the MIMIC Total Precipitable Water site (link), shows a cyclonically-rotating concentration of moisture just north of Samoa, and moving east-southeastward toward Olosega... Read More