As also discussed in this blog post, large hail injured as many as 90 people at a Red Rocks outdoor concert in Colorado just after local sunset on 21 June 2023. 1-minute Mesoscale Domain Sector “Clean” Infrared Window (10.3 µm) images (with/without an overlay of GLM Flash Extent Density) from GOES-16 (GOES-East) (above) and GOES-18 (GOES-West) (below) showed the east-northeastward motion... Read More

The animation above shows a strong convective system between Austin and San Antonio moving southeastward on 8 June 2023 . SPC storm reports note that this complex dropped hail in Bulverde (in Comal County, 13 miles northeast of San Antonio) around 1900 UTC, and in various locations in Bexar County (of which... Read More

GOES-18 (GOES-West) SO2 RGB, Shortwave Infrared (3.9 µm) and Fire Power derived product images (above) showed the SO2 plume and thermal signature of an eruption of Kilauea that began at 4:44 AM HST or 1444 UTC on 07 June 2023. As of 1451 UTC (only 7 minutes after the onset of the... Read More

1-minute Mesoscale Domain Sector GOES-18 (GOES-West) “Clean” Infrared Window (10.3 µm) images (above) are shown with and without an overlay of GLM Flash Extent Density and contours of Lightning Cast Probability from 1530-1915 UTC on 01 June 2023 — the time period covering outdoor graduation ceremonies at the Air Force Academy in eastern Colorado. LightningCast provided good lead time, with Probability values over the Air Force Academy... Read More