Tomorrow is forecast to be nearly the same temperature as today.
Forecast for McLean
Updated: 9:40 PM CST on December 21, 2009
Rest of Tonight
Widespread snow showers late in the evening... then numerous snow showers after midnight. New snow accumulation up to 1 inch. Total snow accumulation up to 3 inches. Lows around 10. Southeast winds around 10 mph.
Tuesday
Cloudy with a 20 percent chance of snow. Highs 15 to 20. Southeast winds 10 to 15 mph.
... Significant winter storm possible Wednesday through Christmas day...
A strong low pressure system will develop in the far Southern Plains on Tuesday night and slowly push into the upper Midwest by Christmas morning. There are two main concerns with this system. First... the vast size of the storm. There is the possibility that winter weather could extend from the Great Lakes all the way west into the northern High Plains. Second... the slow movement of the storm. With a strong low that moves slowly... there is the potential for hazardous winter weather to be prolonged for several days and extend through Christmas day.
Moderate to heavy snow accumulations are possible across most of of western and central North Dakota... from Wednesday into Christmas day. Winds are expected to gradually increase through the event... so near blizzard conditions are also possible... especially Thursday afternoon into Christmas morning. There is still some uncertainty in the exact track of the storm... which will impact snow amounts and locations. However... heavy snowfall amounts of 6 inches or more are possible through Christmas day... and the southeast third to half of the state is favored for the highest totals. The National Weather Service will continue to monitor this situation closely. Stay informed with the latest forecast information at weather.Gov/Bismarck.