A toggle between Suomi-NPP VIIRS Day/Night Band (0.7 µm) and Shortwave Infrared (3.74 µm) images at 0954 UTC or 3:54 am local time (above) displayed the nighttime glow and thermal signatures of actively-burning portions of the Tunnel Fire on 20 April 2022. As noted in the Inciweb report, a 10-mile section of the... Read More
A sequence of Suomi-NPP VIIRS Visible (0.64 µm) and Shortwave Infrared (3.74 µm) images (above) revealed a long east-to-west oriented swath of horizontal convective roll (HCR) clouds associated with blowing snow and blizzard conditions across parts of the North Slope of Alaska on 15 April 2022. The plume of supercooled... Read More
5-minute GOES-16 {GOES-East) True Color RGB images created using Geo2Grid (below) showed widespread blowing dust (shades of tan) and wildfire smoke plumes (brighter shades of white) across much of the central/southern Plains on 12 April 2022. Wind speeds were anomalously strong behind a dryline within the warm sector of an anomalously-deep surface low, which... Read More
1-minute Mesoscale Domain Sector GOES-17 (GOES-West) “Red” Visible (0.64 µm) images (above) showed a hazy plume of resuspended volcanic ash — from the 1912 eruption of Novarupta-Katmai — moving southeastward then eastward across the Shelikof Strait toward Kodiak Island in southern Alaska on 08 April 2022.The corresponding 1-minute GOES-17 Dust RGB images (below) displayed faint hues of... Read More
