Cold tonight Details >
Dec 9, 2013; 1:33 PM ET A storm moving through the South Central will make its way into the mid-Atlantic Tuesday morning crippling traffic and covering the ground with significant snow.
A storm system interacting with cold air in the West will lead to low snow levels in Oregon and California.
Plunging temperatures will threaten California agriculture with a frost and freeze this week.
Thirty years of shrinking Arctic sea ice has boosted extreme summer weather, including heat waves and drought, in the United States and elsewhere.Read Story >