Alert archive / Illinois / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 68, NWS Lincoln, IL

June 26, 20214 counties in Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 26, 2021, 6:24 PM CDT for 4 counties in Illinois. It was in force for 81 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: Jun 26, 2021, 6:24 PM CDT (23:24 UTC)
Expired: Jun 26, 2021, 7:45 PM CDT
In force: 81 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Champaign County, IL, Douglas County, IL, Edgar County, IL, Vermilion County, IL

The radar

The Lincoln radar (KILX), 120 km from the middle of the area, began a volume at 23:27 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
Jun 26, 6:35 PM CDT	TSTM WND GST 60	2 W Rossville, IL

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
Jun 26, 12:05 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.4 hours before the alert went out and 62 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: 683 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 684 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 263 m²/s²
0-3 km storm-relative helicity: 229 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

As transmitted.

946 
WUUS53 KILX 262324
SVRILX
ILC019-041-045-183-270045-
/O.NEW.KILX.SV.W.0068.210626T2324Z-210627T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
624 PM CDT Sat Jun 26 2021

The National Weather Service in Lincoln has issued a

* Severe Thunderstorm Warning for...
  Northern Edgar County in east central Illinois...
  Vermilion County in east central Illinois...
  Southeastern Champaign County in east central Illinois...
  Douglas County in east central Illinois...

* Until 745 PM CDT.

* At 623 PM CDT, severe thunderstorms were located along a line
  extending from 7 miles north of Ogden to near Pesotum to near
  Humboldt, moving northeast at 35 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Severe thunderstorms will be near...
  Tuscola, Sidney, Potomac and Broadlands around 640 PM CDT.

Other locations in the path of these severe thunderstorms include
Hindsboro, Rossville, Homer, Camargo, Ogden, Newman, Fairmount,
Fithian, Brocton, Muncie, Catlin, Oakwood, Hume, Westville, Belgium
and Allerton.

This includes the following highways...
 Interstate 57 between mile markers 202 and 218.
 Interstate 74 between mile markers 190 and 220.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 PM CDT for east central
Illinois.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3968 8797 3968 8806 3966 8806 3965 8812
      3965 8842 3966 8843 4049 8784 4049 8753
      3975 8753
TIME...MOT...LOC 2323Z 241DEG 31KT 4021 8792 3992 8821 3965 8837 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
 
$$

Barnes

3 follow-up statements

570 
WWUS53 KILX 262352
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
652 PM CDT Sat Jun 26 2021

ILC019-041-045-183-270045-
/O.CON.KILX.SV.W.0068.000000T0000Z-210627T0045Z/
Edgar-Vermilion-Champaign-Douglas-
652 PM CDT Sat Jun 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHERN EDGAR...VERMILION...SOUTHEASTERN CHAMPAIGN AND EASTERN
DOUGLAS COUNTIES...

At 652 PM CDT, severe thunderstorms were located along a line
extending from Rossville to near Homer to Hindsboro, moving northeast
at 35 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
  Hoopeston, Rossville, Sidell, Fairmount, Fithian, Muncie, Newman, 
  Oakwood, Brocton, Catlin, Westville, Belgium, Hume, Danville and 
  Tilton.

This includes the following highways...
 Interstate 57 between mile markers 202 and 205.
 Interstate 74 between mile markers 197 and 220.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3968 8797 3968 8806 3966 8806 3965 8812
      3965 8835 3976 8825 4049 8769 4049 8753
      3975 8753
TIME...MOT...LOC 2352Z 247DEG 26KT 4040 8766 3999 8798 3967 8816 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
 
$$

Barnes

173 
WWUS53 KILX 270011
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
711 PM CDT Sat Jun 26 2021

ILC019-270021-
/O.CAN.KILX.SV.W.0068.000000T0000Z-210627T0045Z/
Champaign-
711 PM CDT Sat Jun 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHAMPAIGN COUNTY
IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

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

LAT...LON 3968 8797 3968 8806 3966 8806 3965 8812
      3965 8834 3966 8834 3983 8799 3988 8796
      3988 8794 3991 8794 4000 8787 4049 8769
      4049 8753 3975 8753
TIME...MOT...LOC 0011Z 252DEG 36KT 4045 8760 4004 8776 3981 8795 3967
8825

$$

ILC041-045-183-270045-
/O.CON.KILX.SV.W.0068.000000T0000Z-210627T0045Z/
Edgar-Vermilion-Douglas-
711 PM CDT Sat Jun 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHERN EDGAR...VERMILION AND EASTERN DOUGLAS COUNTIES...

At 711 PM CDT, severe thunderstorms were located along a line
extending from near Hoopeston to near Catlin to near Newman to near
Arcola, moving east at 40 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Danville, Hoopeston, Georgetown, Westville, Arcola, Tilton, Catlin,
Oakwood, Chrisman, Rossville, Ridge Farm, Newman, Fairmount, Sidell,
Belgium, Hume, Brocton, Hindsboro, Allerton and Edgar.

This includes the following highways...
 Interstate 57 between mile markers 202 and 203.
 Interstate 74 between mile markers 205 and 220.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3968 8797 3968 8806 3966 8806 3965 8812
      3965 8834 3966 8834 3983 8799 3988 8796
      3988 8794 3991 8794 4000 8787 4049 8769
      4049 8753 3975 8753
TIME...MOT...LOC 0011Z 252DEG 36KT 4045 8760 4004 8776 3981 8795 3967
8825

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
 
$$

Barnes

449 
WWUS53 KILX 270045
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
745 PM CDT Sat Jun 26 2021

ILC041-045-183-270055-
/O.EXP.KILX.SV.W.0068.000000T0000Z-210627T0045Z/
Edgar-Vermilion-Douglas-
745 PM CDT Sat Jun 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN EDGAR...VERMILION AND
EASTERN DOUGLAS COUNTIES HAS EXPIRED...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been allowed to expire.  However gusty
winds and heavy rain are still possible with these thunderstorms.

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

LAT...LON 3968 8797 3968 8806 3966 8806 3965 8812
      3965 8834 3966 8834 3983 8799 3988 8796
      3988 8794 3991 8794 4000 8787 4049 8769
      4049 8753 3975 8753
TIME...MOT...LOC 0045Z 241DEG 31KT 4059 8727 4018 8744 3995 8763 3981
8793

$$

Barnes

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 7:21 PM CDT	Severe Thunderstorm Warning	ILX	Logan, Mason, Tazewell	39 min
Jun 25, 7:33 PM CDT	Special Weather Statement	ILX	McLean	42 min
Jun 25, 7:38 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Scott	67 min
Jun 25, 7:53 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Logan, McLean, Tazewell	67 min
Jun 25, 8:16 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Menard, Morgan, Sangamon	44 min
Jun 25, 8:29 PM CDT	Tornado Warning	ILX	McLean	30 min
Jun 25, 8:49 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, McLean, Macon, Piatt	41 min
Jun 25, 8:54 PM CDT	Flash Flood Warning	ILX	DeWitt, Logan, McLean, Mason, Tazewell	6 hr
Jun 25, 9:05 PM CDT	Severe Thunderstorm Warning	ILX	Logan, Mason, Menard, Tazewell	25 min
Jun 25, 9:47 PM CDT	Flash Flood Warning	ILX	Morgan, Scott	6 hr
Jun 25, 9:59 PM CDT	Flash Flood Warning	ILX	DeWitt, McLean, Piatt	5 hr
Jun 25, 10:18 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Coles, DeWitt, Douglas, Macon, Moultrie and 1 more	27 min
Jun 26, 2:34 AM CDT	Areal Flood Warning	ILX	DeWitt, Logan, McLean, Mason, Piatt, Tazewell	61 hr
Jun 26, 6:03 AM CDT	River Flood Warning	ILX	Piatt	8 days
Jun 26, 9:44 AM CDT	River Flood Warning	ILX	Mason, Menard	4 days
Jun 26, 12:21 PM CDT	Tornado Warning	ILX	McLean	24 min
Jun 26, 1:24 PM CDT	Tornado Warning	ILX	Morgan, Scott	36 min
Jun 26, 1:53 PM CDT	Tornado Warning	ILX	Morgan	37 min
Jun 26, 2:17 PM CDT	Tornado Warning	ILX	Morgan, Sangamon	28 min
Jun 26, 2:38 PM CDT	Tornado Warning	ILX	McLean, Woodford	37 min
Jun 26, 3:12 PM CDT	Tornado Warning	ILX	McLean	33 min
Jun 26, 3:19 PM CDT	Tornado Warning	ILX	Logan, Sangamon	26 min
Jun 26, 3:25 PM CDT	Flash Flood Warning	ILX	DeWitt, Logan, McLean, Macon, Mason, Menard and 3 more	4 hr
Jun 26, 3:33 PM CDT	Severe Thunderstorm Warning	ILX	Logan	27 min
Jun 26, 3:37 PM CDT	Tornado Warning	ILX	McLean	23 min
Jun 26, 3:39 PM CDT	Tornado Warning	ILX	Logan, Sangamon	36 min
Jun 26, 4:04 PM CDT	Tornado Warning	ILX	DeWitt	26 min
Jun 26, 4:43 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, DeWitt, McLean, Piatt	32 min
Jun 26, 5:16 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, DeWitt, McLean, Piatt	44 min
Jun 26, 5:47 PM CDT	Tornado Warning	ILX	Douglas, Moultrie, Piatt	43 min
Jun 26, 5:50 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	40 min
Jun 26, 6:03 PM CDT	Tornado Warning	ILX	Champaign, Douglas	27 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2021 Every severe thunderstorm warning 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.