
UPDATED at 3:30 PM
Tonight: Cloudy with an 80% chance of light snow/flurries. Low: 17-21. Wind: E 5-10 mph.
Friday: Cloudy with a 100% chance of light snow. High: 26-29. Wind: NE 5-10 mph.
Friday Night: Cloudy with a few flurries. Low: 14-19. Wind: NW 5-10 mph.
Saturday: Decreasing clouds. High: low 20s.
Sunday: Partly cloudy. High: low 20s.
Monday: Mostly cloudy. High: upper teens.
New Year’s Day: Mostly sunny. High: mid-upper teens.
Wednesday: Partly cloudy. High: near 20.
Thursday: Partly cloudy. High: upper teens.

We started the day out with sunshine but clouds quickly moved in from the west as snow developed in western Iowa this morning. There is an area of low pressure in the upper levels of the atmosphere. Around noon today that low was located along the South Dakota/ Nebraska state line. It is forecast to track east tonight and Friday.

It was producing snow in South Dakota, Nebraska and western Iowa. Flurries are expected before midnight and after midnight light snow will develop. The light snow will continue through Friday and taper off Friday evening. Here is the forecast map for Friday evening.

There will only be about 0.10-0.20” of liquid in this system. The snow ratio is expected to be about 15:1 so that puts snow amounts about 1-2”. Some locations south of Highway 23 may see less than 1”. Areas along the Iowa/Minnesota state line might see 3” in a couple locations.

Blowing snow is not expected to be a concern with a light wind (5-10 mph) through Friday night.
The cloudy sky will become partly cloudy Saturday and remain that way through the weekend.
A cold front is forecast to cross the state Monday morning with a mostly cloudy sky and a reinforcing push of cold air from the north to the south. Highs temperatures Monday and Tuesday will be in the teens. Here is forecast position of the front Monday morning.

No big changes expected for Wednesday and Thursday with more day and cold weather.
Posted under Forecast Discussion
This post was written by Schnack on December 27, 2012