First Warn Weather

ALT Headline: Thunderstorm Threat This Evening. Sub Headline: Severe weather threat level 1 out of 5. What to Expect: Line of showers and thunderstorms. A few storms could be severe with damaging winds the main threat. Strongest storms will be capable of: Damaging winds capable of downing tree limbs. Torrential Rainfall which may lead to localized flooding and rises on area creeks and streams. When: Main storm window 7 PM to 2 AM CDT. Storms will last about 2 to 3 hours at any one location. Approximate arrival times: Near the Illinois-Wisconsin line: 7 to 8 PM CDT. Chicago Metro and I-88 corridor: 8 to 9 PM CDT. Areas between I-80 and Kankakee River: 9 to 10 PM CDT. Areas south of the Kankakee River: after 10 PM to 12 AM CDT. What to Do: Keep Updated on the latest forecast. Have multiple ways to receive warning information! Graphic Created: Tuesday, August 18, 2026 5:23 PM CDT

ALT Headline: Strong Non-Thunderstorm Winds This Morning. What To Expect. Strong ”Wake Low" Winds. Strong "Wake Low" Winds. Near the Wisconsin/Illinois state line: SE winds gusting up to 40-55 mph. Near and north of I-88 in Illinois: SE winds gusting up to 30-45 mph. Where: Northern Illinois. Highest gusts near the WI/IL state line. Potential Impacts. Downed Tree Limbs. Hazardous Driving. Localized Power Outages. What To Do. Secure outdoor furniture and decorations. Avoid standing near unsecured tents and under trees. Visit weather.gov/chicago for the latest forecast updates. Graphic Created: Sunday, June 28, 2026 4:31 PM CDT.

ALT This graphic displays Tornado Watch watch number 308 plotted on a map. The watch is in effect until 11:00 PM CDT. The watch includes parts of Illinois. The threats associated with this watch are a couple tornadoes possible, isolated hail up to quarter size possible and scattered gusts up to 75 mph likely. There are 1,683,255 people in the watch along with 729 schools and 39 hospitals.

ALT Headline: Timing Today's Severe Threat. Sub Headline: Two rounds of storms possible I-39 corridor; more widespread storms areawide this evening. Round 1: Scattered t-storms, some possibly severe, this afternoon (2-5 PM) in areas in highlighted in yellow Round 2: More widespread t-storms, some severe, expected areawide between 5 PM and Midnight Non-severe t-storms will continue into the early overnight hours, mainly south of I-80. Approximate Severe Threat Timing. Have multiple ways to get weather warnings. Stay tuned for the latest forecast updates. What To Do. Additional Forecast Details. Graphic Created: Friday, April 17, 2026 12:50 PM CDT

ALT Headline: Today’s Thunderstorm Threat. Sub Headline: Greatest threat for severe weather during the afternoon and evening. What to expect. Multiple waves of potentially severe storms this afternoon/evening. Severe threat level 2 of 5 for all of northern Illinois and northwest Indiana. Damaging Winds. Large Hail. Flash Flooding. What To Do. Have multiple ways to get weather warnings. Visit weather.gov/chicago for the latest forecast updates. Graphic Created: Wednesday, April 15, 2026 12:50 PM CDT

ALT Headline: Tuesday's Severe Thunderstorm Threat. Sub Headline: Have a plan in place in case a warning is issued for your area, including at night! What To Expect. Multiple waves of thunderstorms, some potentially strong to severe! Tuesday afternoon through the night. Greatest severe potential from mid-afternoon through the evening. Destructive Hail (≥ 2 in.) Damaging Winds. Tornadoes. Visit weather.gov/chicago/severeprepare for severe weather safety information and planning resources. Multiple rounds of heavy rainfall may lead to flash flooding (threat level 1 of 4). Graphic Created: Monday, April 13, 2026 3:08 PM CDT