A storm system moving out of the Rockies could bring heavy rain and possibly tornadoes to parts of Oklahoma and across Arkansas, and snow is possible in the Oklahoma Panhandle.
The National Weather Service says rains Sunday and night into Monday could cause flooding and possibly isolated tornadoes in eastern Oklahoma and western Arkansas. The storm is expected to continue moving eastward across Arkansas, dropping 3 to 5 inches of rain from central Arkansas northeastward, and more than 5 inches in parts of far northeastern Arkansas, while causing flash flooding in the region.
Strong winds and hail are also a threat and the weather service says a light accumulation of snow is possible late Monday and early Tuesday in the Oklahoma and Texas Panhandles.
Calmer conditions are expected by mid-week.