(11:45PM – Sunday, April 26th, 2026) Severe weather threat returns for Monday/Monday night… ⚠️Update…•With this update cycle, on the forecast for Monday/Monday night, we have slightly adjusted severe t’storm probabilities along the gradient across portions of Central Illinois. This changes was made based on the latest trends within weather guidance….
(11:45AM – Sunday, April 26th, 2026) A severe t’storm threat will return to the state early this week… ⏰📍Timing & Location…•Monday Morning – Early Tuesday Morning, April 27-28th: All of Illinois. ⚡️Hazards…•A level 1 to 3 severe t’storm threat is in place across the state from Monday morning through early…
(11:45AM – Friday, April 17th, 2026) Potentially widespread and significant severe t’storm threat expected thru late tonight/early Saturday… ⚠️Update…•With this update cycle, on the forecast for today/tonight, we have expanded severe t’storm probabilities across the state and have increased severe t’storm probabilities to a level 4 risk across a good…
(11:00PM – Thursday, April 16th, 2026) Severe t’storm threat expected Friday thru early Saturday… ⚠️Update…•With this update cycle, on the forecast for Friday/Firday night, we have expanded level 2 severe t’storm probabilities and upgraded portions of Northwestern/Western Illinois to a level 3 risk. These changes were to account for increasing…
(11:00AM – Thursday, April 16th, 2026) Severe t’storm threat returns for Friday thru early Saturday… ⏰📍Timing & Location…•Friday Afternoon – Early Saturday Morning, April 17-18th: Much of Illinois. ⚡️Hazards…•A level 1 to 2 severe t’storm threat is in place across much of Illinois from Friday afternoon through early Saturday morning,…
(9:30PM – Wednesday, April 15th, 2026) Severe t’storm threat continues through late tonight/early tomorrow morning… ⚠️Update…•With this update cycle, on the forecast for tonight, severe t’storm probabilities have been updated based on real-time observations and trends. ⏰📍Timing & Location…•Tonight – Early Thursday Morning, April 15-16th: Much of Illinois. ⚡️Hazards…•A level…
(12:45PM – Wednesday, April 15th, 2026) Continued severe t’storm threat thru late tonight/early Thursday morning… ⚠️Update…•With this update cycle, on the forecast for today/tonight, we have upgraded roughly the western half of the state to a level 2 severe t’storm threat. Across this area, slightly higher severe t’storm coverage will…
(11:00PM – Tuesday, April 14th, 2026) Severe weather threat continues thru Wednesday night/Thursday morning… #ILWx ⚠️Update…•With this update cycle, on the forecast for tonight, adjustments have been made to severe t’storm probabilities based on trends and real-time observations.•With this update cycle, no changes were needed to the going forecast for…
(11:45AM – Tuesday, April 14th, 2026) Multi-day severe weather threat continues through early Thursday… ⚠️Update…•With this update cycle, on the forecast for today/tonight, we have expanded level 3 severe t’storm probabilities across more of Northern and Central Illinois. Additionally, we have upgraded portions of Northern Illinois to a level 4…
(11:30PM – Monday, April 13th, 2026) Severe t’storm threat continues through early Thursday… ⚠️Update…•With this update cycle, we have adjusted the forecast for the remainder of tonight through early Tuesday morning based on trends and real time observations.•With this update cycle, little changes were needed to the going forecast for…
