Mercer Severe Watches & Warnings NOAA Weather Radio

... Winter Storm Watch in effect from 6 am CST /5 am MST/ Saturday
through Sunday afternoon... 

* what... heavy snow possible. Total snow accumulations of 3 to 8 
  inches possible.

* Where... portions of western and south central North Dakota.

* When... from 6 am CST /5 am MST/ Saturday through Sunday 
  afternoon.

* Additional details... travel could be very difficult. Patchy 
  blowing snow could significantly reduce visibility. The cold 
  wind chills as low as 25 below zero could cause frostbite on 
  exposed skin in as little as 30 minutes.

Precautionary/preparedness actions... 

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.