Significant convection across the northern continental United States has had some notable impacts on the aviation network over the past few weeks. On Wednesday, 30 July, Delta Flight 56 was en route from Salt Lake City, UT, with an intended destination of Amsterdam. Shortly after takeoff at 4:30 PM local... Read More
5-minute PACUS Sector GOES-18 (GOES-West) Nighttime Microphysics RGB and daytime True Color RGB images (above) revealed the cyclonic circulation of an actinoform cloud feature as it passed just north of the Hawaiian Islands on 30 July 2025.GOES-18 Visible images (below) included plots of Ship and Fixed Buoy reports — unfortunately,... Read More
In the evening of 28 July 2025, residents of the Samoan island of Upolu experienced an intense thunderstorm which produced hail, a very rare event for maritime tropical Pacific environments. Social media videos show 1 – 2 cm hailstones falling around residents excited to see such novel conditions. The forecasters... Read More
5-minute PACUS Sector GOES-18 (GOES-West) daytime True Color RGB and Nighttime Microphysics RGB images created using Geo2Grid (above) revealed the cyclonic circulation of a Mesoscale Convective Vortex (MCV) that migrated west-northwestward across southern Arizona into southeast California (not far south of the California/Nevada border) during the 2-day period from 16 July to 18 July 2025. This MCV... Read More
