Rain possible Sunday evening through Monday afternoon Details >
Dec 18, 2013; 5:14 AM ET Short-Range Weather forecast overview for the Southeast United States
The prize could pass the once-unthinkable $1 billion mark by Christmas Eve should nobody win before then.
Warm air is forecast to surge into much of the eastern half of the nation by the weekend and will be accompanied by heavy rain and flooding risk in some locations.
As warmer air pays a brief visit to the Central and Eastern states, delays from rain, fog, ice and snow will be on the increase this weekend for early holiday travelers.
A parade of snowstorms has been taking aim at the U.S. recently, increasing the chances for many to see a White Christmas.