Low pressure over Colorado, this evening, is forecast to track east into Kansas tonight and then turn northeast through Iowa Tuesday.
A wintry mix is forecast to develop after midnight and quickly taper off around noon Tuesday. As the low moves into western Iowa Tuesday morning a warm front will lift north producing snow in northern Iowa and a light wintry mix south.
Generally north of Highway 20, 1-2″ with isolated 3″ of snow along the IA/MN state line, is possible. Areas south of the highway will see a light icy glaze in the morning before temperatures warm into the upper 30s late in the morning. Here is the probability of 1″+ of snow:
Here is the probability of 0.01″ of ice:
Notice the amount of precipitation is going to light, but the roads could be pretty slick at times.
By noon, the low is exiting the state and the precipitation has just about come to an end. After the cold front pushes through, the wind direction will turn to the northwest with gusts to near 35 mph at times.
The temperatures will become much colder as we get into Tuesday night. Wednesday morning lows will be near zero and wind chills below zero.
Just two cold days, Wednesday and Thursday, before temperatures warm into the 30s (could be some 40s) Friday into early next week.
Posted under Update
This post was written by Schnack on March 2, 2015