Alert archive / Illinois / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 35, NWS Lincoln, IL

June 12, 2021Coles County, Cumberland County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 12, 2021, 8:26 PM CDT for Coles County, Cumberland County, Illinois. It was in force for 16 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 12, 2021, 8:26 PM CDT (01:26 UTC)
Expired
Jun 12, 2021, 8:42 PM CDT
In force
16 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Coles County, IL, Cumberland County, IL

The radar

The Lincoln radar (KILX), 125 km from the middle of the area, began a volume at 01:29 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 nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.4 hours before the alert went out and 91 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 2021-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1896 joules per kilogram.LCLEL10008507005003002001001 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 2021-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939Sfc1 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
1896 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1660 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

524 
WUUS53 KILX 130126
SVRILX
ILC029-035-130215-
/O.NEW.KILX.SV.W.0035.210613T0126Z-210613T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
826 PM CDT Sat Jun 12 2021

The National Weather Service in Lincoln has issued a

* Severe Thunderstorm Warning for...
  Southwestern Coles County in east central Illinois...
  Cumberland County in east central Illinois...

* Until 915 PM CDT.

* At 825 PM CDT, a severe thunderstorm was located over Lerna, or
  near Charleston, moving south at 35 mph.

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

  SOURCE...Trained weather spotters.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Janesville around 830 PM CDT.
  Toledo and Greenup around 840 PM CDT.

Other locations in the path of this severe thunderstorm include
Jewett.

This includes the following highways...
 Interstate 57 between mile markers 184 and 190.
 Interstate 70 between mile markers 106 and 119.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Lincoln.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3950 8836 3950 8809 3917 8813 3918 8846
TIME...MOT...LOC 0125Z 019DEG 29KT 3940 8825 

HAIL...1.00IN
WIND...60MPH
 
$$

Shimon
2 follow-up statements
828 
WWUS53 KILX 130140
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
840 PM CDT Sat Jun 12 2021

ILC029-130150-
/O.CAN.KILX.SV.W.0035.000000T0000Z-210613T0215Z/
Coles-
840 PM CDT Sat Jun 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN COLES COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3937 8834 3937 8813 3917 8813 3918 8837
TIME...MOT...LOC 0140Z 338DEG 31KT 3927 8827 

$$

ILC035-130215-
/O.CON.KILX.SV.W.0035.000000T0000Z-210613T0215Z/
Cumberland-
840 PM CDT Sat Jun 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR CENTRAL CUMBERLAND COUNTY...

At 840 PM CDT, a severe thunderstorm was located over Toledo, moving
south at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Trained weather spotters.

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

This severe storm will be near...
  Greenup around 845 PM CDT.

Other locations in the path of this severe thunderstorm include
Jewett.

This includes Interstate 70 between mile markers 107 and 119.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Lincoln.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3937 8834 3937 8813 3917 8813 3918 8837
TIME...MOT...LOC 0140Z 338DEG 31KT 3927 8827 

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

Shimon
203 
WWUS53 KILX 130142
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
842 PM CDT Sat Jun 12 2021

ILC035-130152-
/O.CAN.KILX.SV.W.0035.000000T0000Z-210613T0215Z/
Cumberland-
842 PM CDT Sat Jun 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CUMBERLAND COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

LAT...LON 3937 8834 3937 8813 3917 8813 3918 8837
TIME...MOT...LOC 0141Z 019DEG 29KT 3925 8828 

$$

Shimon

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 7:24 PM CDTSevere Thunderstorm WarningILXChampaign, Coles, Douglas, Edgar47 min
Jun 12, 7:32 PM CDTAreal Flood AdvisoryILXChampaign, Douglas70 min
Jun 12, 8:13 PM CDTSpecial Weather StatementILXCumberland47 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.