Alert archive / Illinois / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 211, NWS Lincoln, IL

August 19, 2025DeWitt County, Logan County, Macon County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Aug 19, 2025, 2:39 AM CDT for DeWitt County, Logan County, Macon County, Illinois. It was in force for 36 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: Aug 19, 2025, 2:39 AM CDT (07:39 UTC)
Expired: Aug 19, 2025, 3:15 AM CDT
In force: 36 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties DeWitt County, IL, Logan County, IL, Macon County, IL

The radar

The Lincoln radar (KILX), 25 km from the middle of the area, began a volume at 07:43 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 00:00Z, 7.7 hours before the alert went out and 42 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2571 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1289 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 94 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 Aug 19, 12:35 AM CDT, 2 hours 4 minutes earlier.

Area forecast discussion, Aug 19, 12:35 AM CDT, 2 hours 4 minutes before

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Hazardous weather outlook, Aug 18, 2:05 PM CDT, 12 hours 34 minutes before

Hazardous Weather Outlook
National Weather Service Lincoln IL
205 PM CDT Mon Aug 18 2025

ILZ027>031-036>038-040>057-061>063-066>068-191915-
Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-Schuyler-
Mason-Logan-De Witt-Piatt-Champaign-Vermilion-Cass-Menard-Scott-
Morgan-Sangamon-Christian-Macon-Moultrie-Douglas-Coles-Edgar-Shelby-
Cumberland-Clark-Effingham-Jasper-Crawford-
205 PM CDT Mon Aug 18 2025

This Hazardous Weather Outlook is for central Illinois, east
central Illinois, southeast Illinois and west central Illinois.

.DAY ONE...Tonight.

Heat indices will slowly fall from the triple digits early this
evening into the mid 70s overnight.

Scattered thunderstorms are possible this evening into tonight (30
to 40% chance). Any storm that develops will be capable of frequent
lightning, heavy rain, and locally strong winds.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

There is a 30-50% chance of thunderstorms Tuesday, with the highest
chances during the morning. Severe weather is not expected, but
locally heavy rain and frequent lightning are possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated tonight.

ILZ071>073-191915-
Clay-Richland-Lawrence-
205 PM CDT Mon Aug 18 2025

This Hazardous Weather Outlook is for southeast Illinois.

.DAY ONE...Tonight.

Heat indices will slowly fall from the triple digits early this
evening into the mid 70s overnight.

Scattered thunderstorms are possible this evening into tonight (20
to 30% chance). Any storm that develops will be capable of frequent
lightning, heavy rain, and locally strong winds.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The combination of heat and humidity is forecast to result in heat
indices of 100 to 105 Tuesday afternoon.

There is a 30-40% chance of thunderstorms Tuesday. Severe weather is
not expected, but locally heavy rain and frequent lightning are
possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated tonight.

Bumgardner

In the hours before

Local storm report, Aug 18, 10:02 PM CDT, 4 hours 37 minutes before

Preliminary Local Storm Report
National Weather Service Lincoln IL
1002 PM CDT Mon Aug 18 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0906 PM     Lightning        Farmington              40.70N 90.00W
08/18/2025                   Fulton             IL   Emergency Mngr

            Lightning struck a utility pole and the
            intersection of N. East St. and E. Court
            St., causing it to shatter.

0924 PM     Lightning        East Peoria             40.66N 89.58W
08/18/2025                   Tazewell           IL   Emergency Mngr

            Lightning struck a transformer on East
            Washington St.

&&

Geelhart

Local storm report, Aug 18, 10:05 PM CDT, 4 hours 34 minutes before

Preliminary Local Storm Report
National Weather Service Lincoln IL
1005 PM CDT Mon Aug 18 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0858 PM     Tstm Wnd Dmg     Pekin                   40.56N 89.64W
08/18/2025                   Tazewell           IL   Broadcast Media

            Large tree branch broken off near the
            intersection of S. 8th St. and Prince St.

&&

Geelhart

Local storm report, Aug 18, 10:10 PM CDT, 4 hours 29 minutes before

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Special weather statement, Aug 19, 2:07 AM CDT, 32 minutes before

Special Weather Statement
National Weather Service Lincoln IL
207 AM CDT Tue Aug 19 2025

ILZ042-190730-
Logan-
207 AM CDT Tue Aug 19 2025

...A STRONG THUNDERSTORM WILL IMPACT CENTRAL LOGAN COUNTY THROUGH 230
AM CDT...

At 206 AM CDT, Doppler radar was tracking a strong thunderstorm over
Lincoln, moving east at 35 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Lincoln.

This includes the following highways...
 Interstate 155 between mile markers 0 and 2.
 Interstate 55 between mile markers 123 and 132.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4015 8948 4022 8942 4016 8919 4004 8930
TIME...MOT...LOC 0706Z 292DEG 12KT 4017 8942

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

MJA

Special weather statement, Aug 19, 2:19 AM CDT, 20 minutes before

Special Weather Statement
National Weather Service Lincoln IL
219 AM CDT Tue Aug 19 2025

ILZ041-042-048-190745-
Logan-Mason-Menard-
219 AM CDT Tue Aug 19 2025

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN MENARD...
SOUTHWESTERN LOGAN AND SOUTHEASTERN MASON COUNTIES THROUGH 245 AM
CDT...

At 219 AM CDT, Doppler radar was tracking a strong thunderstorm near
Greenview, or 7 miles south of Mason City, moving east at 30 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Elkhart, Middletown, and Broadwell.

This includes Interstate 55 between mile markers 113 and 122.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4005 8969 4014 8965 4010 8931 3995 8940
TIME...MOT...LOC 0719Z 288DEG 21KT 4009 8967

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

MJA

Special weather statement, Aug 19, 2:31 AM CDT, 8 minutes before

Special Weather Statement
National Weather Service Lincoln IL
231 AM CDT Tue Aug 19 2025

ILZ043-044-053-190800-
Macon-Piatt-De Witt-
231 AM CDT Tue Aug 19 2025

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN PIATT...
SOUTHWESTERN DE WITT AND NORTHEASTERN MACON COUNTIES THROUGH 300 AM
CDT...

At 230 AM CDT, Doppler radar was tracking a strong thunderstorm over
Kenney, or 7 miles southwest of Clinton, moving east at 30 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Clinton, Maroa, Argenta, Weldon, Kenney, Clinton Power Station,
Weldon Springs State Park, Lane, and Hallsville.

This includes Interstate 72 between mile markers 150 and 156.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4010 8874 3995 8875 3997 8911 4016 8911
      4017 8873
TIME...MOT...LOC 0730Z 269DEG 28KT 4008 8907

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

MJA

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 18, 7:30 PM CDT	Special Weather Statement	ILX	Fulton	30 min
Aug 18, 7:40 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Knox	35 min
Aug 18, 7:52 PM CDT	Special Weather Statement	ILX	Marshall	23 min
Aug 18, 8:14 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Knox, Peoria	31 min
Aug 18, 8:38 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Peoria, Tazewell	52 min
Aug 18, 9:11 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Logan, McLean, Mason, Peoria, Tazewell and 1 more	34 min
Aug 19, 2:07 AM CDT	Special Weather Statement	ILX	Logan	23 min
Aug 19, 2:10 AM CDT	Heat Advisory	ILX	Clay, Crawford, Effingham, Jasper, Lawrence, Richland	17 hr
Aug 19, 2:19 AM CDT	Special Weather Statement	ILX	Logan	26 min
Aug 19, 2:31 AM CDT	Special Weather Statement	ILX	DeWitt	29 min
Aug 19, 3:14 AM CDT	Severe Thunderstorm Warning	ILX	Macon, Piatt	31 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2025 Every severe thunderstorm warning in 2025

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.