Hazardous Weather Outlook
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
137 FLUS43 KLOT 160921 HWOLOT Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 421 AM CDT Mon Mar 16 2026 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-170930- Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage- La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford- Northern Cook-Central Cook-Southern Cook-Northern Will- Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton- 421 AM CDT Mon Mar 16 2026 /521 AM EDT Mon Mar 16 2026/ This Hazardous Weather Outlook is for portions of north central Illinois...northeast Illinois and northwest Indiana. .DAY ONE...Today and Tonight. Weather hazards expected... Significant Snow and Blowing Snow Risk in the morning. Elevated Non-Thunderstorm Wind Risk in the morning. DISCUSSION... Occasional blizzard conditions and significant snow accumulations will be observed early this morning in locations west of a LaSalle-Peru to Woodstock, IL line. Lesser snow accumulations are expected elsewhere, but travel impacts from slick, snow-covered roadways are still expected across much of the area. Snowfall rates will taper off later this morning. Strong northwesterly winds will also lead to blowing snow in open areas. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Tuesday... Limited Snow Risk. DISCUSSION... Another round of accumulating snow is likely to occur Tuesday night into Wednesday. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. $$ LMZ740>745-170930- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 421 AM CDT Mon Mar 16 2026 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Today and Tonight. Weather hazards expected... Gale force winds and very hazardous waves. Elevated Freezing Spray Risk. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Tuesday... Hazardous conditions for small craft are likely. Elevated Freezing Spray Risk. Friday through Sunday... Hazardous conditions for small craft are likely. $$ Ogorek Visit us at www.weather.gov/chicago