The National Weather Service is ramping up its winter storm warning, now placing the Jackson area under a Level-4 "extreme threat" for ice accumulation through Monday. It says an area extending from Brookhaven through Jackson to Columbus could see between a quarter to three quarters of an inch of ice from freezing rain along with up to an inch of sleet and snow. If the ice is as bad as forecast, the Weather Service says we can expect roads to be impassible along with widespread tree damage and lengthy power outages. Forecasters expect the heaviest sleet and snow in the Delta but not as much ice accumulation there. That part of the state remains under a Level-3 "significant threat" as do areas just to the east of the "extreme threat" area. The I-59 corridor is still under a Level-2 "elevated threat".