As winter sets in, a significant winter storm is expected to impact the Chicago area this weekend, with snow potentially accumulating at rates of up to three inches per hour. A Winter Storm Watch has been issued for Chicago and surrounding counties, forecasting that the region could see between 12 to 18 inches of snow. Weather experts warn of intense snow and a wintry mix as temperatures drop significantly. Residents are advised to prepare for challenging travel conditions and to stay updated on the evolving weather situation as the first snowfall of the season is anticipated to commence Sunday night, continuing into Monday.