Alert archive / Illinois / Tornado Warnings in 2023

Tornado Warning 49, NWS Lincoln, IL

August 6, 2023Christian County, Shelby County, Illinois

NWS Lincoln, IL issued this tornado warning at Aug 6, 2023, 6:57 PM CDT for Christian County, Shelby County, Illinois. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 6, 2023, 6:57 PM CDT (23:57 UTC)
Expired
Aug 6, 2023, 7:30 PM CDT
In force
33 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Tornado
Observed
Hail
0.75 in

Counties Christian County, IL, Shelby County, IL

The radar

The Lincoln radar (KILX), 70 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 6, 3:16 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 12.0 hours before the alert went out and 76 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 2023-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2023-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -98 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
749 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-98 m²/s²
0-3 km storm-relative helicity
-85 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

942 
WFUS53 KILX 062357
TORILX
ILC021-173-070030-
/O.NEW.KILX.TO.W.0049.230806T2357Z-230807T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lincoln IL
657 PM CDT Sun Aug 6 2023

The National Weather Service in Lincoln has issued a

* Tornado Warning for...
  East central Christian County in central Illinois...
  Northwestern Shelby County in central Illinois...

* Until 730 PM CDT.

* At 656 PM CDT, a confirmed tornado was located near Stonington, or
  7 miles northeast of Taylorville, moving east at 35 mph.

  HAZARD...Damaging tornado.

  SOURCE...Weather spotters confirmed tornado.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic thunderstorm will remain over mainly rural areas of
  east central Christian and northwestern Shelby Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.

&&

LAT...LON 3955 8919 3961 8918 3960 8883 3950 8884
TIME...MOT...LOC 2356Z 275DEG 29KT 3958 8915 

TORNADO...OBSERVED
MAX HAIL SIZE...<.75 IN

$$

Auten
2 follow-up statements
726 
WWUS53 KILX 070020
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
720 PM CDT Sun Aug 6 2023

ILC021-070029-
/O.CAN.KILX.TO.W.0049.000000T0000Z-230807T0030Z/
Christian-
720 PM CDT Sun Aug 6 2023

...THE TORNADO WARNING FOR EAST CENTRAL CHRISTIAN COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1000 PM CDT for central
Illinois.

LAT...LON 3952 8901 3960 8898 3960 8883 3950 8884
TIME...MOT...LOC 0019Z 276DEG 26KT 3956 8894 

$$

ILC173-070030-
/O.CON.KILX.TO.W.0049.000000T0000Z-230807T0030Z/
Shelby-
720 PM CDT Sun Aug 6 2023

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
NORTHWESTERN SHELBY COUNTY...
    
At 719 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Assumption, or 12 miles northwest of Shelbyville,
moving east at 30 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
northwestern Shelby County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.

&&

LAT...LON 3952 8901 3960 8898 3960 8883 3950 8884
TIME...MOT...LOC 0019Z 276DEG 26KT 3956 8894 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Auten
824 
WWUS53 KILX 070030
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
730 PM CDT Sun Aug 6 2023

ILC173-070039-
/O.EXP.KILX.TO.W.0049.000000T0000Z-230807T0030Z/
Shelby-
730 PM CDT Sun Aug 6 2023

...THE TORNADO WARNING FOR NORTHWESTERN SHELBY COUNTY WILL EXPIRE AT
730 PM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

A Tornado Watch remains in effect until 1000 PM CDT for central
Illinois.

Remember, a Severe Thunderstorm Warning still remains in effect for
Shelby county until 8 pm.

LAT...LON 3952 8901 3960 8898 3960 8883 3950 8884
TIME...MOT...LOC 0029Z 275DEG 29KT 3955 8884 

$$

Auten

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 2:47 AM CDTFlood WatchILXFulton, Knox, McLean, Marshall, Peoria, Stark and 2 more21 hr
Aug 6, 4:03 PM CDTSevere Thunderstorm WarningILXCass, Schuyler27 min
Aug 6, 4:16 PM CDTTornado WarningILXCass29 min
Aug 6, 5:17 PM CDTSevere Thunderstorm WarningILXMorgan, Sangamon28 min
Aug 6, 6:09 PM CDTSevere Thunderstorm WarningILXChristian, Sangamon36 min
Aug 6, 6:24 PM CDTTornado WarningILXChristian, Sangamon36 min
Aug 6, 6:42 PM CDTSevere Thunderstorm WarningILXChristian, Macon33 min
Aug 6, 6:54 PM CDTSevere Thunderstorm WarningILXChristian36 min

Nearby

Tornado Warnings in Illinois, 2023Every tornado warning in 2023Tornadoes 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.