10-minute Full Disk sector GOES-18 (GOES-West) Fire Temperature RGB, “Clean” Infrared Window (10.3 µm), Cloud Top Height and Cloud Top Temperature (above) showed the formation of a pyrocumulonimbus (pyroCb) cloud produced by a wildfire southeast of Edson, Alberta (station identifier CYET) on 04 May 2023. Cloud-top 10.3 µm infrared brightness temperatures were as cold as -61ºC, while the multispectral... Read More
A long-wave diffluent trough centered over California and Nevada was helping to force benign convection along the Laramie Mountains, which run roughly from Laramie to Casper, Wyoming. The ProbSevere LightningCast model, which uses AI and GOES-R data to predict the probability of lightning in the next hour, was able to highlight... Read More
The mp4 animation above, downloaded from the CSPP Geosphere site, shows true-color imagery in the 90 minutes surrounding an EF-3 tornado in Virginia Beach, VA shortly before 2200 UTC on 30 April 2023 (CIMSS Satellite Blog post; SPC Storm reports; ProbSevere imagery for the storm is here). Note the overshooting tops moving from southeastern Virginia northeastward to... Read More
From coastal California to the Sierra Nevadas to the Rocky Mountains, precipitation totals this past winter reached historically high levels, especially when it comes to snowfall and mountain snowpack. The health of western watersheds in terms of mountain snow is readily apparent in VIIRS True and False Color imagery. ... Read More
