The animations above show thundershower development over the Big Island of Hawai’i on 11 May 2023. LightningCast Probabilities correctly diagnosed the increasing lightning threat, with elevated probabilities (50%) occurring before the first observed Geostationary Lightning Mapper (GLM) flash at 2136 UTC. LightningCast gave situational awareness on this day. (The images... Read More

Cincinnati’s 25th running of the Flying Pig Marathon commenced on the morning of Sunday, May 7th, despite deteriorating weather conditions. After a round of storms at about 09:30 UTC, which subsequently passed through, race officials began the marathon as scheduled at 10:30 UTC. Figure 1 shows the composite reflectivity and LightningCast contours... 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

There was a conditional outlook for severe storms in Oklahoma on April 19th, owing to uncertainty in the forcing for ascent and a stout warm-sector cap. Well, the cap broke, and mayhem ensued in central Oklahoma. A break in the cirrus deck in southwest Oklahoma likely contributed to surface heating... Read More