Tonight: Partly cloudy. Low: 12-17. Wind: NW 5 mph.
Friday: Partly cloudy. High: 28-34. Wind: S 5-10 mph.
Friday Night: Increasing clouds. Low: 18-22. Wind: SE 5-10 mph.
Saturday: Cloudy with an 80% chance of snow. High: near 30.
Sunday: Snow ends early AM then partly cloudy, windy (NW 15-30 mph) and cold. High: (teens before sunrise)…most of the day temperatures will be near 5 degrees. Wind chill: 10-20 below zero with blowing snow.
Monday: Partly cloudy with a 10% chance of light snow late PM. High: single digits.
Tuesday: Mostly cloudy and windy (N 15-25 mph) with a 30% chance of light snow AM. High: near 10.
Wednesday: Mostly sunny. High: single digits.
Thursday: Partly cloudy. High: teens.
Ready or not we are going to have more snow fall this weekend than we did during the entire month of December. That is not going to be hard. Most locations saw less than 1” of snow in December.
Our weather is going to be dry through Friday night. Low pressure over the southwest part of the nation is forecast to track northeast.
The low is forecast to track through Missouri Saturday and head toward Michigan by Sunday morning. Northwest of this track will be the heavier snow. This track puts that heavier snow band across eastern Iowa. This heavier band could receive more than 4” of snow (southeast of a line from Waterloo to Prairie du Chien).
Any deviation in the actual track compared to the forecast track will adjust the position of the heavier snow band. So keep updated on the forecast for any adjustments.
Here is potential liquid in the storm to be used for snow.
The snow is forecast to develop mid morning Saturday and taper off early Sunday morning, with the heaviest of snow falling Saturday night. The wind will be light through Saturday evening. Around 10 pm Saturday the wind will increase from the northwest as the surface low crosses the Mississippi River. At this point the wind gusts will be near 35 mph causing blowing snow with reduced visibility and making travel hazardous. The wind diminishes Sunday evening, after 6 PM.
In addition to the wind and snow it is going to be COLD. Sunday high temperatures will occur shortly after midnight and then drop into the single digits as the sun comes up. Temperatures remain in the single digits throughout Sunday. Combine the wind and cold Sunday and you get wind chills in the teens and 20s below zeronext week will be mainly in the single digits and possible low teens. While at night the temperatures will drop below zero.
There is another chance for light snow as a quick moving low moves across the state Monday night. Too early on snow amounts, but with it being so cold any amount of moisture will bring some accumulation. Once that low moves east the wind again kicks out of the northwest causing blowing snow and dangerous wind chills Tuesday.
Posted under Forecast Discussion, Winter Weather
This post was written by Schnack on January 1, 2015