Alert archive / Illinois / Tornado Warnings in 2021

Tornado Warning 45, NWS Lincoln, IL

December 10, 2021Cass County, Morgan County, Scott County, Illinois

NWS Lincoln, IL issued this tornado warning at Dec 10, 2021, 7:15 PM CST for Cass County, Morgan County, Scott County, Illinois. It was in force for 45 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Dec 10, 2021, 7:15 PM CST (01:15 UTC)
Expired: Dec 10, 2021, 8:00 PM CST
In force: 45 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Cass County, IL, Morgan County, IL, Scott County, IL

The radar

The Lincoln radar (KILX), 89 km from the middle of the area, began a volume at 01:18 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.

What was reported inside it

Time	Report	Where	Remark
Dec 10, 7:30 PM CST	FUNNEL CLOUD	Meredosia, IL
Dec 10, 7:30 PM CST	TSTM WND DMG	Meredosia, IL	SEVERAL LARGE TREE BRANCHES WERE BLOWN DOWN. ESTIMATED WIND GUSTS OF 65-75 MPH.
Dec 10, 7:50 PM CST	TSTM WND DMG	3 Nnw Literberry, IL	TREES AND POWER LINES WERE BLOWN DOWN.
Dec 10, 7:54 PM CST	TORNADO	3 Nw Philadelphia, IL	AT LEAST ONE HOME WAS DAMAGED...WITH MAJOR STRUCTURAL DAMAGE TO SURROUNDING BUILDINGS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
Dec 10, 5:17 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.3 hours before the alert went out and 151 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: 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.

214 
WFUS53 KILX 110115
TORILX
ILC017-137-171-110200-
/O.NEW.KILX.TO.W.0045.211211T0115Z-211211T0200Z/

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

The National Weather Service in Lincoln has issued a

* Tornado Warning for...
  Northwestern Scott County in west central Illinois...
  Cass County in west central Illinois...
  Northwestern Morgan County in west central Illinois...

* Until 800 PM CST.
    
* At 715 PM CST, a severe thunderstorm capable of producing a tornado
  was located over Griggsville, or 9 miles northeast of Pittsfield,
  moving northeast at 55 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...
  Naples around 720 PM CST.
  Meredosia and Bluffs around 725 PM CST.
  Chapin around 730 PM CST.

Other locations in the path of this tornadic thunderstorm include
Bluff Springs, Arenzville, Virginia and Chandlerville.

This includes Interstate 72 between mile markers 43 and 45.
 
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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3983 9057 3987 9059 3990 9057 4004 9034
      4006 9021 4005 9020 4007 9018 4006 9016
      4008 9013 4009 9004 3993 9004 3967 9063
      3971 9065
TIME...MOT...LOC 0115Z 235DEG 48KT 3973 9072 

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

$$

Shimon

4 follow-up statements

910 
WWUS53 KILX 110126
SVSILX

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

ILC017-137-171-110200-
/O.CON.KILX.TO.W.0045.000000T0000Z-211211T0200Z/
Scott-Cass-Morgan-
726 PM CST Fri Dec 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CST FOR
NORTHWESTERN SCOTT...CASS AND NORTHWESTERN MORGAN COUNTIES...
    
At 726 PM CST, a severe thunderstorm capable of producing a tornado
was located over Bluffs, or 11 miles northwest of Winchester, moving
northeast at 55 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...
  Chapin around 735 PM CST.

Other locations in the path of this tornadic thunderstorm include
Arenzville, Bluff Springs, Virginia and Chandlerville.

This includes Interstate 72 between mile markers 43 and 45.
 
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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3983 9057 3987 9059 3990 9057 4004 9034
      4006 9021 4005 9020 4007 9018 4006 9016
      4008 9013 4009 9004 3993 9004 3967 9063
      3971 9065
TIME...MOT...LOC 0126Z 240DEG 47KT 3978 9056 

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

$$

Shimon

457 
WWUS53 KILX 110133
SVSILX

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

ILC017-137-171-110200-
/O.CON.KILX.TO.W.0045.000000T0000Z-211211T0200Z/
Scott-Cass-Morgan-
733 PM CST Fri Dec 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CST FOR
NORTHWESTERN SCOTT...CASS AND NORTHWESTERN MORGAN COUNTIES...
        
At 732 PM CST, a severe thunderstorm capable of producing a tornado
was located near Chapin, or 13 miles north of Winchester, moving
northeast at 55 mph.

HAZARD...Tornado.

SOURCE...Weather spotters reported a funnel cloud and large branches 
         down in Meridosia at 732 pm.

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...
  Bluff Springs around 745 PM CST.

Other locations in the path of this tornadic thunderstorm include
Virginia and Chandlerville.

This includes Interstate 72 between mile markers 43 and 45.
 
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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3983 9057 3987 9059 3990 9057 4004 9034
      4006 9021 4005 9020 4007 9018 4006 9016
      4008 9013 4009 9004 3993 9004 3967 9063
      3971 9065
TIME...MOT...LOC 0132Z 240DEG 47KT 3982 9046 

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

$$

Shimon

855 
WWUS53 KILX 110138
SVSILX

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

ILC171-110148-
/O.CAN.KILX.TO.W.0045.000000T0000Z-211211T0200Z/
Scott-
738 PM CST Fri Dec 10 2021

...THE TORNADO WARNING FOR NORTHWESTERN SCOTT 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 1100 PM CST for central and
west central Illinois.

LAT...LON 3990 9051 4002 9033 4006 9021 4005 9020
      4007 9018 4006 9016 4008 9013 4009 9004
      3993 9004 3979 9043 3984 9048
TIME...MOT...LOC 0138Z 236DEG 46KT 3986 9041 

$$

ILC017-137-110200-
/O.CON.KILX.TO.W.0045.000000T0000Z-211211T0200Z/
Cass-Morgan-
738 PM CST Fri Dec 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CST FOR CASS AND
NORTH CENTRAL MORGAN COUNTIES...
        
At 738 PM CST, a severe thunderstorm capable of producing a tornado
was located over Arenzville, or 10 miles south of Beardstown, moving
northeast at 55 mph.

HAZARD...Tornado.

SOURCE...Weather spotters reported a funnel cloud.

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...
  Virginia and Chandlerville.

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3990 9051 4002 9033 4006 9021 4005 9020
      4007 9018 4006 9016 4008 9013 4009 9004
      3993 9004 3979 9043 3984 9048
TIME...MOT...LOC 0138Z 236DEG 46KT 3986 9041 

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

$$

Shimon

681 
WWUS53 KILX 110149
SVSILX

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

ILC137-110159-
/O.CAN.KILX.TO.W.0045.000000T0000Z-211211T0200Z/
Morgan-
749 PM CST Fri Dec 10 2021

...THE TORNADO WARNING FOR NORTH CENTRAL MORGAN 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 1100 PM CST for central and
west central Illinois.

LAT...LON 3996 9033 4001 9029 4004 9022 4005 9020
      4007 9018 4006 9016 4008 9013 4009 9004
      3993 9004 3988 9020 3988 9028
TIME...MOT...LOC 0149Z 243DEG 49KT 3992 9021 

$$

ILC017-110200-
/O.CON.KILX.TO.W.0045.000000T0000Z-211211T0200Z/
Cass-
749 PM CST Fri Dec 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CST FOR EASTERN
CASS COUNTY...
        
At 749 PM CST, a severe thunderstorm capable of producing a tornado
was located over Virginia, moving northeast at 55 mph.

HAZARD...Tornado.

SOURCE...Weather spotters reported a funnel cloud.

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...
Virginia, Chandlerville and Philadelphia. 

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3996 9033 4001 9029 4004 9022 4005 9020
      4007 9018 4006 9016 4008 9013 4009 9004
      3993 9004 3988 9020 3988 9028
TIME...MOT...LOC 0149Z 243DEG 49KT 3992 9021 

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

$$

Shimon

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 10, 7:54 PM CST	Tornado Warning Tornado observed	ILX	Cass, Mason, Menard	40 min
Dec 10, 8:05 PM CST	Tornado Warning	ILX	Mason, Tazewell	40 min
Dec 10, 8:20 PM CST	Severe Thunderstorm Warning	ILX	Christian, Sangamon	40 min
Dec 10, 8:28 PM CST	Tornado Warning	ILX	Logan, Mason, Tazewell	32 min
Dec 10, 8:32 PM CST	Severe Thunderstorm Warning	ILX	Logan, Sangamon	28 min
Dec 10, 8:38 PM CST	Tornado Warning	ILX	McLean, Woodford	22 min
Dec 10, 8:50 PM CST	Tornado Warning	ILX	McLean	12 min
Dec 10, 8:58 PM CST	Severe Thunderstorm Warning	ILX	DeWitt, McLean, Macon, Moultrie, Piatt, Sangamon	47 min
Dec 10, 9:09 PM CST	Severe Thunderstorm Warning	ILX	Christian, Macon, Moultrie, Piatt, Shelby	66 min
Dec 10, 9:23 PM CST	Tornado Warning Tornado observed	ILX	Shelby	36 min
Dec 10, 9:33 PM CST	Severe Thunderstorm Warning	ILX	Champaign, Piatt, Vermilion	42 min
Dec 10, 9:51 PM CST	Severe Thunderstorm Warning	ILX	Champaign, Coles, Cumberland, Douglas, Moultrie, Piatt and 1 more	54 min
Dec 10, 9:55 PM CST	Tornado Warning	ILX	Coles, Douglas, Moultrie	19 min
Dec 10, 9:58 PM CST	Tornado Warning Tornado observed	ILX	Coles, Douglas, Moultrie	32 min
Dec 10, 10:24 PM CST	Severe Thunderstorm Warning	ILX	Champaign, Clark, Coles, Douglas, Edgar, Vermilion	35 min
Dec 10, 10:26 PM CST	Tornado Warning Tornado observed	ILX	Coles, Douglas, Edgar, Vermilion	19 min
Dec 10, 10:56 PM CST	Severe Thunderstorm Warning	ILX	Coles, Cumberland, Effingham, Jasper, Moultrie, Shelby	49 min
Dec 10, 11:40 PM CST	Severe Thunderstorm Warning	ILX	Clark, Coles, Crawford, Cumberland, Edgar, Effingham and 2 more	65 min
Dec 11, 12:50 AM CST	Special Weather Statement	ILX	Lawrence	40 min

Nearby

Tornado Warnings in Illinois, 2021 Every tornado warning in 2021 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.