Alert archive / Illinois / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 63, NWS Lincoln, IL

June 25, 20217 counties in Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 25, 2021, 10:18 PM CDT for 7 counties in Illinois. It was in force for 27 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
Jun 25, 2021, 10:18 PM CDT (03:18 UTC)
Expired
Jun 25, 2021, 10:45 PM CDT
In force
27 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Champaign County, IL, Coles County, IL, DeWitt County, IL, Douglas County, IL, Macon County, IL, Moultrie County, IL, Piatt County, IL

The radar

The Lincoln radar (KILX), 68 km from the middle of the area, began a volume at 03:21 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
Jun 25, 5:06 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 3.3 hours before the alert went out and 40 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 2021-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1254 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2021-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 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
1254 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
910 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
204 m²/s²
Significant tornado parameter
0.7
Supercell composite
6.6

Open this sounding in Storm Lab

The text

As transmitted.

868 
WUUS53 KILX 260318
SVRILX
ILC019-029-039-041-115-139-147-260400-
/O.NEW.KILX.SV.W.0063.210626T0318Z-210626T0400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
1018 PM CDT Fri Jun 25 2021

The National Weather Service in Lincoln has issued a

* Severe Thunderstorm Warning for...
  Northwestern Coles County in east central Illinois...
  Northern Moultrie County in central Illinois...
  Piatt County in central Illinois...
  Southeastern De Witt County in central Illinois...
  Southwestern Champaign County in east central Illinois...
  Western Douglas County in east central Illinois...
  Eastern Macon County in central Illinois...

* Until 1100 PM CDT.

* At 1017 PM CDT, severe thunderstorms were located along a line
  extending from Weldon to near Cerro Gordo to Long Creek to near
  Mount Zion, moving east at 30 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Decatur ASOS.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Severe thunderstorms will be near...
  De Land and Weldon around 1025 PM CDT.
  Monticello around 1030 PM CDT.

Other locations in the path of these severe thunderstorms include
Bement, White Heath, Lovington, Hammond, Seymour, Atwood, Bondville,
Champaign, Urbana, Savoy, Tolono, Arthur and Pesotum.

This includes the following highways...
 Interstate 57 between mile markers 202 and 237.
 Interstate 72 between mile markers 148 and 182.
 Interstate 74 between mile markers 179 and 183.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3963 8881 3966 8881 3965 8893 3966 8895
      3977 8891 3990 8885 4016 8879 4015 8821
      3988 8823 3965 8822
TIME...MOT...LOC 0317Z 257DEG 27KT 4011 8873 3991 8878 3978 8883 3971
8890

HAIL...<.75IN
WIND...70MPH
 
$$

MJA
2 follow-up statements
463 
WWUS53 KILX 260334
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
1034 PM CDT Fri Jun 25 2021

ILC039-260344-
/O.CAN.KILX.SV.W.0063.000000T0000Z-210626T0400Z/
De Witt-
1034 PM CDT Fri Jun 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN DE WITT COUNTY IS
CANCELLED...

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

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
central and east central Illinois.

LAT...LON 3963 8881 3966 8881 3965 8893 3973 8879
      3984 8870 4016 8863 4015 8821 3988 8823
      3965 8822
TIME...MOT...LOC 0334Z 270DEG 27KT 4013 8860 3993 8865 3980 8870 3973
8877

$$

ILC019-029-041-115-139-147-260400-
/O.CON.KILX.SV.W.0063.000000T0000Z-210626T0400Z/
Coles-Moultrie-Piatt-Champaign-Douglas-Macon-
1034 PM CDT Fri Jun 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR NORTHWESTERN COLES...NORTHERN MOULTRIE...PIATT...SOUTHWESTERN
CHAMPAIGN...WESTERN DOUGLAS AND SOUTHEASTERN MACON COUNTIES...

At 1034 PM CDT, severe thunderstorms were located along a line
extending from near De Land to near Bement to near Hammond to near
Dalton City, moving east at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
  Monticello, Bement, Hammond, White Heath, Seymour, Atwood, 
  Bondville, Champaign, Arthur, Savoy, Tuscola, Urbana, Tolono, 
  Arcola and Pesotum.

This includes the following highways...
 Interstate 57 between mile markers 202 and 237.
 Interstate 72 between mile markers 161 and 182.
 Interstate 74 between mile markers 179 and 183.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3963 8881 3966 8881 3965 8893 3973 8879
      3984 8870 4016 8863 4015 8821 3988 8823
      3965 8822
TIME...MOT...LOC 0334Z 270DEG 27KT 4013 8860 3993 8865 3980 8870 3973
8877

HAIL...<.75IN
WIND...60MPH
 
$$

MJA
604 
WWUS53 KILX 260345
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
1045 PM CDT Fri Jun 25 2021

ILC019-029-041-115-139-147-260355-
/O.CAN.KILX.SV.W.0063.000000T0000Z-210626T0400Z/
Coles-Moultrie-Piatt-Champaign-Douglas-Macon-
1045 PM CDT Fri Jun 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN COLES...NORTHERN
MOULTRIE...PIATT...SOUTHWESTERN CHAMPAIGN...WESTERN DOUGLAS AND
SOUTHEASTERN MACON COUNTIES IS CANCELLED...
            
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 cancelled.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
central and east central Illinois.

LAT...LON 3963 8881 3966 8881 3965 8893 3973 8879
      3984 8870 4016 8863 4015 8821 3988 8823
      3965 8822
TIME...MOT...LOC 0343Z 257DEG 27KT 4015 8851 3995 8856 3982 8861 3975
8868

$$

MJA

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 7:21 PM CDTSevere Thunderstorm WarningILXLogan, Mason, Tazewell39 min
Jun 25, 7:33 PM CDTSpecial Weather StatementILXMcLean42 min
Jun 25, 7:38 PM CDTSevere Thunderstorm WarningILXMorgan, Scott67 min
Jun 25, 7:53 PM CDTSevere Thunderstorm WarningILXDeWitt, Logan, McLean, Tazewell67 min
Jun 25, 8:16 PM CDTSevere Thunderstorm WarningILXCass, Menard, Morgan, Sangamon44 min
Jun 25, 8:29 PM CDTTornado WarningILXMcLean30 min
Jun 25, 8:49 PM CDTSevere Thunderstorm WarningILXDeWitt, McLean, Macon, Piatt41 min
Jun 25, 8:54 PM CDTFlash Flood WarningILXDeWitt, Logan, McLean, Mason, Tazewell6 hr
Jun 25, 9:05 PM CDTSevere Thunderstorm WarningILXLogan, Mason, Menard, Tazewell25 min
Jun 25, 9:47 PM CDTFlash Flood WarningILXMorgan, Scott6 hr
Jun 25, 9:59 PM CDTFlash Flood WarningILXDeWitt, McLean, Piatt5 hr
Jun 26, 2:34 AM CDTAreal Flood WarningILXDeWitt, Logan, McLean, Mason, Piatt, Tazewell61 hr
Jun 26, 6:03 AM CDTRiver Flood WarningILXPiatt8 days
Jun 26, 9:44 AM CDTRiver Flood WarningILXMason, Menard4 days
Jun 26, 12:21 PM CDTTornado WarningILXMcLean24 min
Jun 26, 1:24 PM CDTTornado WarningILXMorgan, Scott36 min
Jun 26, 1:53 PM CDTTornado WarningILXMorgan37 min
Jun 26, 2:17 PM CDTTornado WarningILXMorgan, Sangamon28 min
Jun 26, 2:38 PM CDTTornado WarningILXMcLean, Woodford37 min
Jun 26, 3:12 PM CDTTornado WarningILXMcLean33 min
Jun 26, 3:19 PM CDTTornado WarningILXLogan, Sangamon26 min
Jun 26, 3:25 PM CDTFlash Flood WarningILXDeWitt, Logan, McLean, Macon, Mason, Menard and 3 more4 hr
Jun 26, 3:33 PM CDTSevere Thunderstorm WarningILXLogan27 min
Jun 26, 3:37 PM CDTTornado WarningILXMcLean23 min
Jun 26, 3:39 PM CDTTornado WarningILXLogan, Sangamon36 min
Jun 26, 4:04 PM CDTTornado WarningILXDeWitt26 min
Jun 26, 4:43 PM CDTSevere Thunderstorm WarningILXChampaign, DeWitt, McLean, Piatt32 min
Jun 26, 5:16 PM CDTSevere Thunderstorm WarningILXChampaign, DeWitt, McLean, Piatt44 min
Jun 26, 5:47 PM CDTTornado WarningILXDouglas, Moultrie, Piatt43 min
Jun 26, 5:50 PM CDTSevere Thunderstorm WarningILXVermilion40 min
Jun 26, 6:03 PM CDTTornado WarningILXChampaign, Douglas27 min
Jun 26, 6:24 PM CDTSevere Thunderstorm WarningILXChampaign, Douglas, Edgar, Vermilion81 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2021Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.