Blizzards, dust storms, fires, floods, thunderstorms and tornadoes were the result of very strong back-to-back negatively tilted shortwave troughs through the eastern half of the U.S. From Texas to Wisconsin, New York to Florida, severe wind gusts, large hail, and deadly tornadoes were recorded. The hardest hit states during the... Read More

The ProbSevere LightningCast version 1 (v1) model uses machine learning and GOES-R Advanced Baseline Imager (ABI) data to predict the probability of lightning in the next 60 minutes. This version will be operational at NOAA later in 2025.As research and development continues, a new version of the model (LightningCast v2) adds... Read More

For the second day in a row, residents of the southern United States have awoken to dense fog advisories. A view of the continental United States surface map shows that overall, there is very weak synoptic forcing across the south, which results in calm winds and little mixing or advection.... Read More

It’s spring time on the Great Plains, which means strong dynamical systems that often bring blizzards as well as severe thunderstorms. A long-wave trough with an embedded 850-500mb jet streak created cyclogenesis in western Oklahoma and southwest Kansas on March 13, with associated low-level moisture return into eastern Kansas.The strong... Read More