Alert archive / Illinois / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 311, NWS Lincoln, IL

June 25, 20264 counties in Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 25, 2026, 1:33 PM CDT for 4 counties in Illinois. It was in force for 44 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
Jun 25, 2026, 1:33 PM CDT (18:33 UTC)
Expired
Jun 25, 2026, 2:17 PM CDT
In force
44 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Clay County, IL, Effingham County, IL, Jasper County, IL, Richland County, IL

The radar

The Evansville,IN radar (KVWX), 87 km from the middle of the area, began a volume at 18:35 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

Lincoln, IL (KILX), launched 12:00Z, 6.6 hours before the alert went out and 143 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.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2026-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 56 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2026-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
56 J/kg
Mixed-layer CIN
-152 J/kg
Mixed-layer LCL
1370 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

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 Jun 25, 11:57 AM CDT, 1 hour 36 minutes earlier.

Area forecast discussion, Jun 25, 11:57 AM CDT, 1 hour 36 minutes before
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Hazardous weather outlook, Jun 25, 5:33 AM CDT, 8 hours before
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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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In the hours before

Special weather statement, Jun 25, 1:14 PM CDT, 19 minutes before
Special Weather Statement
National Weather Service Lincoln IL
114 PM CDT Thu Jun 25 2026

ILZ072-073-251845-
Richland-Lawrence-
114 PM CDT Thu Jun 25 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN LAWRENCE AND
SOUTHEASTERN RICHLAND COUNTIES THROUGH 145 PM CDT...

At 114 PM CDT, Doppler radar was tracking a strong thunderstorm near
Parkersburg, or 7 miles south of Olney, moving east at 15 mph.

HAZARD...Wind gusts up to 50 mph and nickel 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...
Olney, Parkersburg, Olney Noble Airport, and Calhoun.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3858 8815 3860 8816 3860 8822 3872 8818
      3869 8781 3857 8785 3857 8814
TIME...MOT...LOC 1814Z 285DEG 15KT 3862 8813

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

MJA
Special weather statement, Jun 25, 1:18 PM CDT, 15 minutes before
Special Weather Statement
National Weather Service Lincoln IL
118 PM CDT Thu Jun 25 2026

ILZ066-067-071-251845-
Clay-Effingham-Jasper-
118 PM CDT Thu Jun 25 2026

...A STRONG THUNDERSTORM WILL IMPACT WEST CENTRAL JASPER...
NORTHWESTERN CLAY AND SOUTHEASTERN EFFINGHAM COUNTIES THROUGH 145 PM
CDT...

At 118 PM CDT, Doppler radar was tracking a strong thunderstorm near
Bible Grove, or 14 miles south of Effingham, moving east at 20 mph.

HAZARD...Wind gusts up to 50 mph and nickel 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...
Bible Grove and Hord.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3885 8862 3902 8855 3898 8831 3875 8840
TIME...MOT...LOC 1818Z 289DEG 19KT 3891 8850

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

MJA

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 24, 7:05 PM CDTSevere Thunderstorm WarningILXTazewell, Woodford40 min
Jun 24, 7:38 PM CDTSpecial Weather StatementILXWoodford37 min
Jun 24, 8:01 PM CDTSpecial Weather StatementILXMcLean29 min
Jun 24, 11:23 PM CDTSpecial Weather StatementILXLogan37 min
Jun 24, 11:27 PM CDTSpecial Weather StatementILXVermilion18 min
Jun 25, 3:43 AM CDTSpecial Weather StatementILXClark17 min
Jun 25, 3:44 AM CDTSpecial Weather StatementILXMoultrie16 min
Jun 25, 4:11 AM CDTSpecial Weather StatementILXColes19 min
Jun 25, 5:01 AM CDTSpecial Weather StatementILXCrawford14 min
Jun 25, 5:11 AM CDTSpecial Weather StatementILXCrawford19 min
Jun 25, 1:14 PM CDTSpecial Weather StatementILXRichland31 min
Jun 25, 1:18 PM CDTSpecial Weather StatementILXClay27 min
Jun 25, 5:24 PM CDTFlash Flood WarningILXClay, Effingham, Jasper5 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.