The collaborative international project, involving scientists from NCAR and other organizations, may ultimately improve tornado forecasting.

Like a cat toying with its prey, an intense area of low pressure took swipes at New England and the mid-Atlantic.

Residents of the mid-Atlantic can be forgiven if they’re craving a bit of calm. The weekend of 5–6 February brought what’s been variously dubbed Snowpocalypse II, Snowmageddon, Snowtastrophe, and the Superbowl Superstorm.

The giant comma-shaped storm systems that traverse the Midwest from fall through spring carry more than a few secrets. Radar, lidar, and profiler beams are now slicing through those storms, hunting for small-scale features that normally go unobserved.

No matter how you slice it, the last few weeks have been consistently wintry across large chunks of North America and Eurasia.