Alert archive / Illinois / Tornado Warnings in 2021

Tornado Warning 41, NWS Lincoln, IL

October 11, 2021Woodford County, Illinois

NWS Lincoln, IL issued this tornado warning at Oct 11, 2021, 5:38 PM CDT for Woodford County, Illinois. It was in force for 20 min. 1 report 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
Oct 11, 2021, 5:38 PM CDT (22:38 UTC)
Expired
Oct 11, 2021, 5:58 PM CDT
In force
20 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Woodford County, IL

The radar

The Lincoln radar (KILX), 74 km from the middle of the area, began a volume at 22:41 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

TimeReportWhereRemark
Oct 11, 5:39 PM CDTTORNADO2 Sw El Paso, ILLATE REPORT. AN EF-U TORNADO TOUCHED DOWN IN AN OPEN FIELD AND TRAVELED NORTH-NORTHEAST ACROSS HWY 24. PATH LENGTH WAS 2.5 MILES WITH A PATH WIDTH OF 50 YEARDS.

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.

IssuedProductOfficeLasted
Oct 11, 3:10 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.6 hours before the alert went out and 78 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 2021-10-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 287 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 12:00Z on 2021-10-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 206 square meters per square second.19395878Sfc1 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
287 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
867 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
206 m²/s²
0-3 km storm-relative helicity
230 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.3

Open this sounding in Storm Lab

The text

As transmitted.

879 
WFUS53 KILX 112238
TORILX
ILC203-112315-
/O.NEW.KILX.TO.W.0041.211011T2238Z-211011T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lincoln IL
538 PM CDT Mon Oct 11 2021

The National Weather Service in Lincoln has issued a

* Tornado Warning for...
  Eastern Woodford County in central Illinois...

* Until 615 PM CDT.

* At 538 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near El Paso, or 10 miles east of Eureka, moving north
  at 15 mph.

  HAZARD...Tornado.

  SOURCE...Weather spotters reported 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.

* This dangerous storm will be near...
  El Paso around 555 PM CDT.

This includes Interstate 39 between mile markers 12 and 23.
 
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 4085 8893 4082 8893 4076 8899 4068 8903
      4066 8906 4068 8912 4088 8913
TIME...MOT...LOC 2238Z 198DEG 15KT 4069 8907 

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

$$

Shimon
3 follow-up statements
221 
WWUS53 KILX 112244
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
544 PM CDT Mon Oct 11 2021

ILC203-112315-
/O.CON.KILX.TO.W.0041.000000T0000Z-211011T2315Z/
Woodford-
544 PM CDT Mon Oct 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
NORTHEASTERN WOODFORD COUNTY...
        
At 544 PM CDT, a severe thunderstorm capable of producing a tornado
was located over El Paso, or 11 miles east of Eureka, moving
northeast at 25 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.

This tornadic thunderstorm will remain over mainly rural areas of
northeastern Woodford County, including the following locations...
Panola and Benson.

This includes Interstate 39 between mile markers 13 and 23.
 
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 4085 8893 4082 8893 4076 8899 4070 8902
      4070 8906 4072 8912 4088 8913
TIME...MOT...LOC 2244Z 203DEG 22KT 4074 8905 

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

$$

Shimon
875 
WWUS53 KILX 112252
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
552 PM CDT Mon Oct 11 2021

ILC203-112315-
/O.CON.KILX.TO.W.0041.000000T0000Z-211011T2315Z/
Woodford-
552 PM CDT Mon Oct 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
NORTHEASTERN WOODFORD COUNTY...
    
At 552 PM CDT, a severe thunderstorm capable of producing a tornado
was located near El Paso, or 13 miles east of Eureka, moving
northeast at 25 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
northeastern Woodford County, including the following locations...
Panola.

This includes Interstate 39 between mile markers 17 and 23.
 
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 4085 8893 4082 8893 4076 8899 4074 8900
      4075 8904 4077 8911 4087 8907
TIME...MOT...LOC 2252Z 203DEG 21KT 4078 8903 

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

$$

Shimon
501 
WWUS53 KILX 112258
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
558 PM CDT Mon Oct 11 2021

ILC203-112308-
/O.CAN.KILX.TO.W.0041.000000T0000Z-211011T2315Z/
Woodford-
558 PM CDT Mon Oct 11 2021

...THE TORNADO WARNING FOR NORTHEASTERN WOODFORD COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.  However gusty winds are
still possible with this thunderstorm.

A Tornado Watch remains in effect until 900 PM CDT for central
Illinois.

Remember, a Severe Thunderstorm Warning still remains in effect for
northeastern Woodford County until 615 pm.

LAT...LON 4085 8893 4082 8893 4076 8899 4074 8900
      4075 8904 4077 8911 4087 8907
TIME...MOT...LOC 2256Z 198DEG 15KT 4081 8902 

$$

Shimon

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 11, 12:00 PM CDTSpecial Weather StatementILXMorgan30 min
Oct 11, 12:55 PM CDTSpecial Weather StatementILXSangamon35 min
Oct 11, 2:08 PM CDTSpecial Weather StatementILXSchuyler, Scott37 min
Oct 11, 2:27 PM CDTSpecial Weather StatementILXCrawford, Lawrence, Richland33 min
Oct 11, 2:50 PM CDTTornado Warning Tornado observedILXMorgan25 min
Oct 11, 3:12 PM CDTTornado WarningILXMorgan, Sangamon33 min
Oct 11, 3:32 PM CDTTornado Warning Tornado observedILXCass, Menard, Morgan, Sangamon30 min
Oct 11, 3:50 PM CDTTornado Warning Tornado observedILXFulton, Mason, Tazewell25 min
Oct 11, 4:21 PM CDTTornado WarningILXLogan, Mason24 min
Oct 11, 4:47 PM CDTTornado Warning Tornado observedILXMarshall, Woodford28 min
Oct 11, 4:56 PM CDTSevere Thunderstorm WarningILXDeWitt, Logan, Macon, Piatt49 min
Oct 11, 5:03 PM CDTSevere Thunderstorm WarningILXDeWitt, Logan, McLean, Macon, Piatt42 min
Oct 11, 5:14 PM CDTSevere Thunderstorm WarningILXMcLean, Woodford61 min
Oct 11, 5:42 PM CDTSevere Thunderstorm WarningILXChampaign, DeWitt, Douglas, McLean, Macon, Piatt63 min
Oct 11, 6:52 PM CDTSpecial Weather StatementILXChampaign, Douglas, Vermilion83 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.