A Winter Storm Warning has been issued for the Stateline through Friday.

I must admit, in this crazy winter of ours, there has not been a storm more challenging to forecast than this one. The uncertainties involved with this complex system are still numerous even at this late stage in the game. It appears as though the rain/snow line will set up somewhere over our viewing area, meaning that some parts of the Stateline will receive heavy amounts of snow, while others hardly see any at all.

Late model runs have shifted that critical rain/snow line about 10-15 miles further North. It might not sound like much, but it's extremely critical. As a rule, the further North the rain/snow line sets up, the more of us will be spared those huge accumulations.

Here's the forecast for snowfall, as we see it right now. Keep in mind, this is very much subject to change, given the importance of those ever so slight fluctuations in the rain/snow line.

I-88 Southward: 1-2 Inches
I-88 to US-20: 2-6 Inches
US-20 to Wisconsin State Line: 6-8 inches
Southern Wisconsin: 8-12+ inches

Travel to Milwaukee, Madison, Lake Geneva will be EXTREMELY treacherous. Stay tuned to 23 WIFR and wifr.com for updated information on this developing winter storm!