Strong-to-severe thunderstorms will be a big concern for the southern Plains and the Mississippi and Ohio valleys through Friday, with a possible tornado outbreak.
ARMY CORP INVESTIGATING NEW ORLEANS FLOOD PROTECTION SYSTEM AFTER DRAINAGE PUMP CORRODED IN 5 YEARS
Record-setting warmth will help fuel storms ahead of this system, bringing widespread heavy rain and the risk of flash flooding.
On the northern side of the storm, late-season snow will pile up over sections of the Great Lakes, Northeast and New England.
Meanwhile, more unsettled weather is in the forecast across the West, with colder-than-average temperatures and upcoming heavy snow for the mountains.
