Statement as of 4:57 AM CDT on March 21, 2011 ... Winter Storm Warning in effect from 1 am Tuesday to 7 PM CDT Wednesday... The National Weather Service in Bismarck has upgraded the Winter Storm Watch to a Winter Storm Warning for freezing rain... sleet... and heavy snow... which is in effect from 1 am Tuesday to 7 PM CDT Wednesday. * Freezing rain and sleet late Monday night into Tuesday morning. Precipitation is forecast to change to snow Tuesday... becoming heavy at times Tuesday and Tuesday night... with light to moderate snow continuing into Wednesday. * Snowfall amounts will range from 10 to 16 inches along and north of Highway 52... with 6 to 10 inches from Williston to Bismarck. * Travel will become hazardous due to the freezing rain... sleet and snow. * Winds may gust at times to 35 mph causing areas of blowing snow and significantly reduced visibilities. Precautionary/preparedness actions... A Winter Storm Warning means significant amounts of snow... sleet... and ice are expected or occurring. Strong winds are also possible. This will make travel very hazardous or impossible.