A series of LightningCast Probability plots from this RealEarth-powered website, below, shows increasing probabilities of lightning over the South Pacific to the south of American Samoa’s Manu’a Islands. The 75% contour (magenta) appears at 0530 UTC; the first GLM observation is shown at 0620 UTC. LightningCast is the probability that a GLM observation will occur... Read More

Metop-B and Metop-C both overflew Tropical Storm Mal as it approached the island of Fiji on 14 November. The toggle above shows the two wind plots from this website, MetopC from 0933 UTC and MetopB from 1013 UTC. The two swaths show the center of the storm moving southeast, skirting the main islands of Fiji. A shortcoming... Read More

1-minute Mesoscale Domain Sector GOES-18 (GOES-West) daytime True Color RGB + Nighttime Microphysics RGB images from the CSPP GeoSphere site (above) showed a plume of resuspended volcanic ash (hazy shades of gray in True Color RGB, and brighter shades of pink in Nighttime Microphysics RGB) from the 1912 Novarupta-Katmai eruption in Alaska, which was being transported offshore across the Shelikof Strait toward Kodiak Island on... Read More

JMA Himawari-9 Ash RGB images created using Geo2Grid (above) showed the complex transport of Kyluchevskaya volcanic plumes — which were a mixture of ash (shades of pink to red-orange) and SO2 (brighter shades of yellow) — during the 3-day period from 31 October to 02 November 2023. Much of the transport... Read More