Alert archive / Illinois / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 104, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Mar 31, 2026, 11:44 PM CDT for DeWitt County, Illinois. It was in force for 17 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 31, 2026, 11:44 PM CDT (04:44 UTC)
- Expired
- Apr 1, 2026, 12:01 AM CDT
- In force
- 17 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
County DeWitt County, IL
The radar
The Lincoln radar (KILX), 37 km from the middle of the area, began a volume at 04:46 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 4.7 hours before the alert went out and 444 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 380 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 1683 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 173 m²/s²
- 0-3 km storm-relative helicity
- 358 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.8
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Lincoln, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 31, 6:10 PM CDT, 5 hours 34 minutes earlier.
Area forecast discussion, Mar 31, 6:10 PM CDT, 5 hours 34 minutes before
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</html>Hazardous weather outlook, Mar 31, 2:55 PM CDT, 8 hours 49 minutes before
Hazardous Weather Outlook National Weather Service Lincoln IL 255 PM CDT Tue Mar 31 2026 ILZ027>031-036-037-040-041-047-049-050-011100- Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-Schuyler-Mason- Cass-Scott-Morgan- 255 PM CDT Tue Mar 31 2026 This Hazardous Weather Outlook is for central Illinois and west central Illinois, mainly near and west of the Illinois River. .DAY ONE...Tonight. Thunderstorms are expected to develop by early evening, with the threat diminishing from north to south later tonight as a front moves through the area. Some of the storms may be strong or locally severe, with large hail the main threat. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Periods of showers and storms will continue into the first part of the weekend. There is a 50 to 60 percent chance of exceeding 2 inches through the weekend, which may result in localized flooding and rises along area waterways. Ahead of a cold front Thursday afternoon and evening, there is a risk of strong to severe thunderstorms. Damaging winds, large hail, and a few tornadoes are possible. Cooler weather arrives early next week, and there is a 40 to 60 percent chance of temperatures below freezing Sunday night. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed through about 8 pm. ILZ038-042>046-048-051>057-061-011100- McLean-Logan-De Witt-Piatt-Champaign-Vermilion-Menard-Sangamon- Christian-Macon-Moultrie-Douglas-Coles-Edgar-Shelby- 255 PM CDT Tue Mar 31 2026 This Hazardous Weather Outlook is for central Illinois and east central Illinois, generally from near the I-55 corridor east to the Indiana border. .DAY ONE...Tonight. Thunderstorms are expected to develop by early evening, with the threat diminishing from north to south later tonight as a front moves through the area. Some of the storms may be strong or locally severe, with large hail the main threat. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Periods of showers and storms will continue into the first part of the weekend. There is a 50 to 60 percent chance of exceeding 2 inches through the weekend, which may result in localized flooding and rises along area waterways. Ahead of a cold front Thursday afternoon and evening, there is a risk of strong to severe thunderstorms. Damaging winds, large hail, and a few tornadoes are possible. Also, windy conditions are likely ahead of the storms Thursday, with gusts of 40 to 45 mph most likely near and east of I-57. Cooler weather arrives early next week, and there is a 40 to 60 percent chance of temperatures below freezing Sunday night. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed between 6 pm and midnight. ILZ062-063-066>068-071>073-011100- Cumberland-Clark-Effingham-Jasper-Crawford-Clay-Richland-Lawrence- 255 PM CDT Tue Mar 31 2026 This Hazardous Weather Outlook is for southeast Illinois. .DAY ONE...Tonight. Scattered thunderstorms are expected to redevelop this evening, and will be most numerous near I-70. A few of the storms may produce large hail. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Periods of showers and storms will continue into the first part of the weekend. There is a 30 to 50 percent chance of exceeding 2 inches through the weekend. Ahead of a cold front Thursday afternoon and evening, there is a risk of strong to severe thunderstorms. Damaging winds and large hail are most likely. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed after 8 pm. Geelhart
In the hours before
Special weather statement, Mar 31, 9:56 PM CDT, 1 hour 48 minutes before
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</html>Special weather statement, Mar 31, 10:36 PM CDT, 1 hour 8 minutes before
Special Weather Statement
National Weather Service Lincoln IL
1036 PM CDT Tue Mar 31 2026
ILZ043-010400-
De Witt-
1036 PM CDT Tue Mar 31 2026
...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN DE WITT COUNTY
THROUGH 1100 PM CDT...
At 1035 PM CDT, Doppler radar was tracking a strong thunderstorm over
Kenney, or near Clinton, moving east at 30 mph.
HAZARD...Wind gusts up to 50 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Clinton, Kenney, Lane, and Weldon Springs State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4005 8912 4011 8912 4019 8885 4006 8881
TIME...MOT...LOC 0335Z 256DEG 24KT 4008 8904
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
37Special weather statement, Mar 31, 11:06 PM CDT, 38 minutes before
Special Weather Statement
National Weather Service Lincoln IL
1106 PM CDT Tue Mar 31 2026
ILZ043-044-010430-
Piatt-De Witt-
1106 PM CDT Tue Mar 31 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTHERN PIATT AND EAST CENTRAL
DE WITT COUNTIES THROUGH 1130 PM CDT...
At 1106 PM CDT, Doppler radar was tracking a strong thunderstorm near
Weldon, or 10 miles northwest of Monticello, moving east at 30 mph.
HAZARD...Wind gusts up to 50 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Mansfield, De Land, Galesville, and Lodge.
This includes the following highways...
Interstate 72 between mile markers 171 and 173.
Interstate 74 between mile markers 161 and 167.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4010 8872 4019 8875 4028 8849 4009 8847
TIME...MOT...LOC 0406Z 256DEG 24KT 4014 8870
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
37Special weather statement, Mar 31, 11:10 PM CDT, 34 minutes before
Special Weather Statement National Weather Service Lincoln IL 1110 PM CDT Tue Mar 31 2026 ILZ042-043-010430- Logan-De Witt- 1110 PM CDT Tue Mar 31 2026 ...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL LOGAN AND SOUTHWESTERN DE WITT COUNTIES THROUGH 1130 PM CDT... At 1110 PM CDT, Doppler radar was tracking a strong thunderstorm over Kenney, or 8 miles southwest of Clinton, moving east at 30 mph. HAZARD...Half inch hail. SOURCE...Radar indicated. IMPACT...Minor hail damage to vegetation is possible. Locations impacted include... Clinton, Wapella, Kenney, Hallsville, Weldon Springs State Park, and Midland City. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. && LAT...LON 4006 8916 4013 8917 4022 8895 4006 8890 TIME...MOT...LOC 0410Z 256DEG 24KT 4010 8911 MAX HAIL SIZE...0.50 IN MAX WIND GUST...<30 MPH 37
Special weather statement, Mar 31, 11:27 PM CDT, 17 minutes before
Special Weather Statement
National Weather Service Lincoln IL
1127 PM CDT Tue Mar 31 2026
ILZ043-010445-
De Witt-
1127 PM CDT Tue Mar 31 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN DE WITT COUNTY
THROUGH 1145 PM CDT...
At 1127 PM CDT, Doppler radar was tracking a strong thunderstorm near
Clinton, moving east at 30 mph.
HAZARD...Wind gusts up to 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Clinton, Wapella, and Hallsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4012 8910 4019 8914 4028 8891 4014 8886
TIME...MOT...LOC 0427Z 254DEG 25KT 4016 8905
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
37Special weather statement, Mar 31, 11:39 PM CDT, 5 minutes before
Special Weather Statement
National Weather Service Lincoln IL
1139 PM CDT Tue Mar 31 2026
ILZ038-042-043-010500-
Logan-De Witt-McLean-
1139 PM CDT Tue Mar 31 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN LOGAN...
NORTHWESTERN DE WITT AND SOUTHWESTERN MCLEAN COUNTIES THROUGH
MIDNIGHT CDT...
At 1138 PM CDT, Doppler radar was tracking a strong thunderstorm over
Atlanta, or 12 miles northeast of Lincoln, moving northeast at 25
mph.
HAZARD...Wind gusts up to 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Heyworth, Atlanta, McLean, and Shirley.
This includes Interstate 55 between mile markers 139 and 153.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4023 8920 4028 8927 4045 8910 4029 8893
TIME...MOT...LOC 0438Z 237DEG 23KT 4027 8919
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
37The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 9:11 PM CDT | Special Weather Statement | ILX | Sangamon | 19 min |
| Mar 31, 9:26 PM CDT | Special Weather Statement | ILX | Macon | 19 min |
| Mar 31, 9:28 PM CDT | Special Weather Statement | ILX | Sangamon | 17 min |
| Mar 31, 9:40 PM CDT | Special Weather Statement | ILX | Macon | 20 min |
| Mar 31, 9:56 PM CDT | Special Weather Statement | ILX | Macon | 19 min |
| Mar 31, 10:36 PM CDT | Special Weather Statement | ILX | DeWitt | 24 min |
| Mar 31, 11:06 PM CDT | Special Weather Statement | ILX | Piatt | 24 min |
| Mar 31, 11:10 PM CDT | Special Weather Statement | ILX | DeWitt | 20 min |
| Mar 31, 11:27 PM CDT | Special Weather Statement | ILX | DeWitt | 18 min |
| Mar 31, 11:39 PM CDT | Special Weather Statement | ILX | DeWitt | 21 min |
| Mar 31, 11:59 PM CDT | Special Weather Statement | ILX | McLean | 16 min |
| Apr 1, 3:17 AM CDT | Areal Flood Advisory | ILX | DeWitt, Logan, McLean | 4 hr |
| Apr 1, 7:49 AM CDT | Areal Flood Advisory | ILX | Champaign, DeWitt, Logan, McLean | 2 hr |
| Apr 1, 12:18 PM CDT | Wind Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 31 hr |
Nearby
Severe Thunderstorm Warnings in Illinois, 2026Every severe thunderstorm warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.