Rain and snow will begin to work into the state by Wednesday morning. Rain will be more likely than snow, but enough cold air should wrap around on the backside of the low to transition some of the rain over to snow. The high-res 12Z RPM and the 12Z GFS are in agreement with each other as to track and intensity. Rain will begin across southern Iowa during the very early morning hours on Wednesday and will be lifting off to the northeast throughout the day.
Around the noon hour to just shortly after, the RPM has rain transitioning over to snow across western Iowa. As this low continues to track off to the northeast into Wisconsin, the snow will also lift off to the northeast.
Both the GFS and RPM show very light snowfall accumulations. Generally 1 to 2 inches. Even though the models show this, you then have to take into consideration melting due to ground temperatures. Even if a lot of this doesn’t stick, it will be just enough to put you in the festive Christmas spirit!
On Christmas Eve, a few flurries will track across the state before noon. Not expecting any accumulation from this.
We will be watching how the models unfold this afternoon and will have another update for you around 4pm CST. Make sure to follow us on Facebook and Twitter for additional updates.