Hurricane Lee, moving northward off the east coast of the United States, is generating a large cirrus shield (see the ABI Band 4 image below) at high levels over New England, as also shown in the Air mass RGB shown above. The corrugated features in the cirrus are well-known predictors... Read More

GOES-18 (GOES-West) SO2 RGB and Ash RGB images (above) showed the east-southeastward drift of a volcanic cloud produced by an explosive eruption of Mount Shishaldin that began shortly before 1600 UTC on 05 September 2023. The initial volcanic cloud exhibited pale shades of yellow in both RGB types, suggesting a mixture of SO2 and Ash; after 1900 UTC, the... Read More

5-minute GOES-16 (GOES-East) “Clean” Infrared Window (10.3 µm) images with an overlay of the Total Precipitable Water (TPW) derived product (above) showed a pocket of high moisture — with TPW values in the 2.0-2.3 inch range — just northeast of a quasi-stationary front that was draped across lower Michigan during the nighttime hours... Read More

GOES-18 (GOES-West) Ash RGB images (above) showed the northeastward drift of volcanic clouds produced by an eruption of Mount Shishaldin that began just before 1300 UTC on 04 August 2023 (a Mesoscale Domain Sector was positioned over that region at 1603 UTC, providing 1-minute imagery after that time). Those northeast-moving volcanic clouds contained moderate concentrations of ash (denoted... Read More