Saturday, January 26, 2013
UPDATED: Sunday Breakdown: Many things to look at
Sunday 7:30am Update: A Freezing Rain Advisory is now in place across all northern Illinois counties. This replaces the Winter Storm Watch from Saturday evening.
Saturday Evening Update:
9:45 pm Update: From what has come in of the evening model runs, the going forecast looks pretty much the same. Temperatures tonight will hold steady in the low to mid 20s. Of interesting note the NAM model has come in with slightly higher QPF (total precipitation amount) totals by Sunday night. If temperatures do in fact remain below freezing throughout Sunday afternoon ice accumulations closer to a quarter of an inch, or more, will be likely causing significant icing problems. Winds will increase as well so it's possible power outages may occur if ice builds up on power lines and tree branches.
Previous forecast discussion:
A Winter Storm Watch (counties in blue) has been issued for northern Illinois beginning Sunday morning and a Winter Weather Advisory (counties in brown) has been issued for Green, Rock and Walworth counties beginning Sunday morning.
Here's the way it looks right now: