Alert archive / Illinois / Tornado Warnings in 2021

Tornado Warning 49, NWS Lincoln, IL

December 10, 2021McLean County, Woodford County, Illinois

NWS Lincoln, IL issued this tornado warning at Dec 10, 2021, 8:38 PM CST for McLean County, Woodford County, Illinois. It was in force for 22 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
Dec 10, 2021, 8:38 PM CST (02:38 UTC)
Expired
Dec 10, 2021, 9:00 PM CST
In force
22 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties McLean County, IL, Woodford County, IL

The radar

The Lincoln radar (KILX), 75 km from the middle of the area, began a volume at 02:39 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
Dec 10, 7:47 PM CSTTornado WatchSPC8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.6 hours before the alert went out and 70 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 00:00Z on 2021-12-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 119 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2021-12-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 341 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
119 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
662 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
341 m²/s²
0-3 km storm-relative helicity
357 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

205 
WFUS53 KILX 110238
TORILX
ILC113-203-110315-
/O.NEW.KILX.TO.W.0049.211211T0238Z-211211T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lincoln IL
838 PM CST Fri Dec 10 2021

The National Weather Service in Lincoln has issued a

* Tornado Warning for...
  Southeastern Woodford County in central Illinois...
  Northwestern McLean County in central Illinois...

* Until 915 PM CST.
    
* At 838 PM CST, a severe thunderstorm capable of producing a tornado
  was located near Carlock, or 7 miles southeast of Eureka, moving
  northeast at 35 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 dangerous storm will be near...
  El Paso around 855 PM CST.

Other locations in the path of this tornadic thunderstorm include
Gridley and Chenoa.

This includes the following highways...
 Interstate 39 between mile markers 8 and 21.
 Interstate 55 between mile markers 182 and 186.
 Interstate 74 between mile markers 116 and 118.

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.

&&

LAT...LON 4075 8893 4075 8858 4071 8858 4059 8920
      4074 8923 4087 8893
TIME...MOT...LOC 0238Z 244DEG 31KT 4066 8915 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Shimon
2 follow-up statements
913 
WWUS53 KILX 110252
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
852 PM CST Fri Dec 10 2021

ILC113-203-110315-
/O.CON.KILX.TO.W.0049.000000T0000Z-211211T0315Z/
Woodford-McLean-
852 PM CST Fri Dec 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CST FOR EAST
CENTRAL WOODFORD AND NORTH CENTRAL MCLEAN COUNTIES...
    
At 852 PM CST, a severe thunderstorm capable of producing a tornado
was located over El Paso, or 16 miles east of Eureka, moving
northeast at 45 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.

Locations impacted include...
  Gridley and Chenoa.

This includes the following highways...
 Interstate 39 between mile markers 14 and 18.
 Interstate 55 between mile markers 182 and 186.

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.

&&

LAT...LON 4075 8893 4075 8858 4071 8858 4064 8899
      4078 8907 4082 8893
TIME...MOT...LOC 0252Z 243DEG 38KT 4074 8897 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Shimon
126 
WWUS53 KILX 110300
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
900 PM CST Fri Dec 10 2021

ILC113-203-110309-
/O.CAN.KILX.TO.W.0049.000000T0000Z-211211T0315Z/
Woodford-McLean-
900 PM CST Fri Dec 10 2021

...THE TORNADO WARNING FOR EAST CENTRAL WOODFORD AND NORTH CENTRAL
MCLEAN COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 200 AM CST for central
Illinois.

Remember, a Tornado Warning still remains in effect for western 
Mclean County until 930 pm.

LAT...LON 4075 8893 4075 8858 4071 8858 4064 8899
      4078 8907 4082 8893
TIME...MOT...LOC 0256Z 244DEG 31KT 4077 8889 

$$

Shimon

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 10, 7:15 PM CSTTornado WarningILXCass, Morgan, Scott45 min
Dec 10, 7:54 PM CSTTornado Warning Tornado observedILXCass, Mason, Menard40 min
Dec 10, 8:05 PM CSTTornado WarningILXMason, Tazewell40 min
Dec 10, 8:20 PM CSTSevere Thunderstorm WarningILXChristian, Sangamon40 min
Dec 10, 8:28 PM CSTTornado WarningILXLogan, Mason, Tazewell32 min
Dec 10, 8:32 PM CSTSevere Thunderstorm WarningILXLogan, Sangamon28 min
Dec 10, 8:50 PM CSTTornado WarningILXMcLean12 min
Dec 10, 8:58 PM CSTSevere Thunderstorm WarningILXDeWitt, McLean, Macon, Moultrie, Piatt, Sangamon47 min
Dec 10, 9:09 PM CSTSevere Thunderstorm WarningILXChristian, Macon, Moultrie, Piatt, Shelby66 min
Dec 10, 9:23 PM CSTTornado Warning Tornado observedILXShelby36 min
Dec 10, 9:33 PM CSTSevere Thunderstorm WarningILXChampaign, Piatt, Vermilion42 min
Dec 10, 9:51 PM CSTSevere Thunderstorm WarningILXChampaign, Coles, Cumberland, Douglas, Moultrie, Piatt and 1 more54 min
Dec 10, 9:55 PM CSTTornado WarningILXColes, Douglas, Moultrie19 min
Dec 10, 9:58 PM CSTTornado Warning Tornado observedILXColes, Douglas, Moultrie32 min
Dec 10, 10:24 PM CSTSevere Thunderstorm WarningILXChampaign, Clark, Coles, Douglas, Edgar, Vermilion35 min
Dec 10, 10:26 PM CSTTornado Warning Tornado observedILXColes, Douglas, Edgar, Vermilion19 min
Dec 10, 10:56 PM CSTSevere Thunderstorm WarningILXColes, Cumberland, Effingham, Jasper, Moultrie, Shelby49 min
Dec 10, 11:40 PM CSTSevere Thunderstorm WarningILXClark, Coles, Crawford, Cumberland, Edgar, Effingham and 2 more65 min
Dec 11, 12:50 AM CSTSpecial Weather StatementILXLawrence40 min

Nearby

Tornado Warnings in Illinois, 2021Every tornado warning in 2021Tornadoes in 2021

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.