Winter Storm arrives Sunday

By Justin Poublon

November 24, 2018 - 2:30 PM CST |

UPDATE 2:30PM SAT - OFFICIAL FORECAST: A low pressure system is developing across central United states and will track east towards the southern Great Lakes tomorrow. The storm track has shifted slightly south over the last 24 hours. Confidence has increased on expected snow amounts. 8-12" of heavy snow will fall along a NARROW heavy snow band from southern Iowa into northern Illinois and far southeast Wisconsin on Sunday.

Winter storm to impact the great lakes on Sunday

The snow will begin as a rain mix before transitioning to all snow. Wind gusts up to 35 MPH could produce blizzard-like conditions Sunday night within the heavy snow band. There will be a sharp cutoff on the northern edge so even the SMALLEST of storm track changes could make a BIG difference.

The storm exits into Michigan Monday where more heavy snow is likely.

STORM TIMING & IMPACTS

TIMING - The storm will occur between 6AM Sunday and 6AM Monday.

HEAVY SNOW - Heavy snow of 8-12" from Davenport to Waukegan including extreme southeast Wisconsin. A sharp cutoff from north to south in snow totals on the northern edge.

Wisconsin Weather

WINDY AT TIMES - Blizzard-like conditions are possible in northern Illinois within the heavy snow band. Northeasterly winds of 10-20 MPH in southern Wisconsin Sunday night, gusting up to 35 MPH.

SIMULATED RADAR

Here is the GFS simulated radar for Sunday night.