The above radar image was taken from the Little Rock radar a moment ago. It's standard reflectivity (precipitation) mode but I've enhanced the color table to be more sensitive to wintry precipitation (i.e., snow, sleet, freezing rain).
The bright white reflectivity over Dallas and Cleveland counties shows snowfall rates of 1-2 inches per hour. Indeed, surface reports within the last hour indicate 1 inch of snow on the ground near Rison (in Cleveland County), and still coming down at a moderate to heavy pace.
This activity will spread East-Northeast into adjacent portions of Mississippi as the afternoon and evening progress.
Below is the latest computer model forecast of snow depth at Midnight CST, later this evening/early Monday morning:
Keep in mind that by the valid time of the forecast image, the snow will have ended across Arkansas, and will be just about peaking over Mississippi.
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