Alert archive / Illinois / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 253, NWS Lincoln, IL

September 26, 2023Christian County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Sep 26, 2023, 6:53 PM CDT for Christian County, Illinois. It was in force for 37 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
Sep 26, 2023, 6:53 PM CDT (23:53 UTC)
Expired
Sep 26, 2023, 7:30 PM CDT
In force
37 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Christian County, IL

The radar

The Lincoln radar (KILX), 67 km from the middle of the area, began a volume at 23:56 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, 11.9 hours before the alert went out and 89 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 2023-09-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 128 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 2023-09-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.193958Sfc1 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
128 J/kg
Mixed-layer CIN
-110 J/kg
Mixed-layer LCL
1483 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
36 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 Sep 26, 6:25 PM CDT, 28 minutes earlier.

Area forecast discussion, Sep 26, 6:25 PM CDT, 28 minutes before
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Hazardous weather outlook, Sep 26, 3:08 PM CDT, 3 hours 45 minutes before
Hazardous Weather Outlook
National Weather Service Lincoln IL
308 PM CDT Tue Sep 26 2023

ILZ027>031-036>038-041>046-271100-
Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-Mason-
Logan-De Witt-Piatt-Champaign-Vermilion-
308 PM CDT Tue Sep 26 2023

This Hazardous Weather Outlook is for central Illinois, east
central Illinois and west central Illinois, mainly north of a Canton
to Danville line.

.DAY ONE...Tonight.

Scattered thunderstorms will continue through this evening. A few of
the storms will be strong to locally severe. Hail to around 1 inch
in diameter is the main threat, though there is also an isolated
tornado threat along and northeast of I-74. Locally heavy rainfall
will also occur.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Scattered thunderstorms are also expected Wednesday, though severe
weather is not likely.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required through about 9 pm.

Expected storm motion will be toward the northeast around 20 mph.

ILZ040-047>051-271100-
Schuyler-Cass-Menard-Scott-Morgan-Sangamon-
308 PM CDT Tue Sep 26 2023

This Hazardous Weather Outlook is for west central Illinois.

.DAY ONE...Tonight.

Scattered thunderstorms will continue through this evening. While
some of the storms may contain gusty winds and small hail, it appears
any severe weather threat should be further north and east.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Scattered thunderstorms are also expected Wednesday, though severe
weather is not likely.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated tonight.

ILZ052>057-061>063-066>068-071>073-271100-
Christian-Macon-Moultrie-Douglas-Coles-Edgar-Shelby-Cumberland-Clark-
Effingham-Jasper-Crawford-Clay-Richland-Lawrence-
308 PM CDT Tue Sep 26 2023

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

.DAY ONE...Tonight.

Scattered thunderstorms will continue into this evening. A few of
the storms will be strong to locally severe. Hail to around 1 inch in
diameter is the main threat. Locally heavy rainfall will also occur.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Scattered thunderstorms are also expected Wednesday, lingering
through the night south of I-70. The severe weather threat looks like
it will be further south.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required through about 9 pm.

Expected storm motion will be toward the northeast around 20 mph.

Geelhart

In the hours before

Special weather statement, Sep 26, 4:02 PM CDT, 2 hours 51 minutes before
Special Weather Statement
National Weather Service Lincoln IL
402 PM CDT Tue Sep 26 2023

ILZ027>031-037-038-270000-
Knox-Stark-Peoria-Marshall-Woodford-Tazewell-McLean-
Including the cities of Galesburg, Toulon, Peoria, Lacon, Eureka,
Pekin, Bloomington, and Normal
402 PM CDT Tue Sep 26 2023

...FUNNEL CLOUD SIGHTED OVER CENTRAL ILLINOIS...

At 350 pm, a funnel cloud was reported northwest of Peoria near Alta.

Atmospheric conditions exist today that favor the possible formation
of weak funnel clouds. These occur in vertically developed clouds.
They are associated with developing showers and storms, but
typically dissipate once the rain begins.

Low hanging clouds can also appear to dip up and down at times,
but they will not show signs of any rapid rotation. An actual
funnel cloud will exhibit spinning in a counter-clockwise direction.

In rare instances these funnels may briefly touch down and become a
landspout tornado. Stay alert and be prepared to move to a safe
shelter if a funnel cloud approaches the ground.

Geelhart
Special weather statement, Sep 26, 5:38 PM CDT, 1 hour 15 minutes before
Special Weather Statement
National Weather Service Lincoln IL
538 PM CDT Tue Sep 26 2023

ILZ050-051-262330-
Sangamon-Morgan-
538 PM CDT Tue Sep 26 2023

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN SANGAMON AND EAST
CENTRAL MORGAN COUNTIES THROUGH 630 PM CDT...

At 538 PM CDT, Doppler radar was tracking a strong thunderstorm near
New Berlin, or 15 miles northwest of Virden, moving east at 20 mph.

HAZARD...Wind gusts up to 40 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...
Springfield, Chatham, Auburn, Pawnee, New Berlin, Waverly, Divernon,
Loami, Thayer, Glenarm, and Lowder.

This includes the following highways...
 Interstate 55 between mile markers 77 and 90.
 Interstate 72 near mile marker 79.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3972 8961 3952 8960 3952 8974 3957 9001
      3974 9001
TIME...MOT...LOC 2238Z 273DEG 21KT 3968 8994

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

Barnes
Special weather statement, Sep 26, 6:40 PM CDT, 13 minutes before
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Special weather statement, Sep 26, 6:43 PM CDT, 10 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 26, 4:38 PM CDTSevere Thunderstorm WarningILXMorgan22 min
Sep 26, 4:57 PM CDTSevere Thunderstorm WarningILXMorgan, Scott33 min
Sep 26, 5:38 PM CDTSpecial Weather StatementILXSangamon52 min
Sep 26, 6:40 PM CDTSpecial Weather StatementILXChristian20 min
Sep 26, 6:43 PM CDTSpecial Weather StatementILXSangamon17 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2023Every severe thunderstorm warning in 2023

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.