Alert archive / Illinois / Tornado Warnings in 2021

Tornado Warning 34, NWS Lincoln, IL

July 15, 2021Coles County, Illinois

NWS Lincoln, IL issued this tornado warning at Jul 15, 2021, 1:40 PM CDT for Coles County, Illinois. It was in force for 34 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
Jul 15, 2021, 1:40 PM CDT (18:40 UTC)
Expired
Jul 15, 2021, 2:14 PM CDT
In force
34 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Coles County, IL

The radar

The Lincoln radar (KILX), 116 km from the middle of the area, began a volume at 18:40 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 12:00Z, 6.7 hours before the alert went out and 81 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 2021-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 628 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 2021-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 217 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
628 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
1096 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
217 m²/s²
0-3 km storm-relative helicity
188 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.6

Open this sounding in Storm Lab

The text

As transmitted.

295 
WFUS53 KILX 151840
TORILX
ILC029-151930-
/O.NEW.KILX.TO.W.0034.210715T1840Z-210715T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lincoln IL
140 PM CDT Thu Jul 15 2021

The National Weather Service in Lincoln has issued a

* Tornado Warning for...
  Coles County in east central Illinois...

* Until 230 PM CDT.
    
* At 140 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Paradise, 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 dangerous storm will be near...
  Mattoon around 145 PM CDT.
  Lerna around 155 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Charleston.

This includes Interstate 57 between mile markers 181 and 195.
 
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 3937 8847 3945 8847 3965 8820 3942 8802
TIME...MOT...LOC 1840Z 238DEG 24KT 3943 8843 

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

$$

Barnes
2 follow-up statements
022 
WWUS53 KILX 151851
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
151 PM CDT Thu Jul 15 2021

ILC029-151930-
/O.CON.KILX.TO.W.0034.000000T0000Z-210715T1930Z/
Coles-
151 PM CDT Thu Jul 15 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR COLES
COUNTY...
    
At 150 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Lerna, moving east-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 dangerous storm will be near...
  Lerna around 155 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Charleston.

This includes Interstate 57 between mile markers 181 and 195.
 
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 3937 8847 3945 8847 3965 8820 3942 8802
TIME...MOT...LOC 1850Z 261DEG 22KT 3941 8834 

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

$$

Barnes
501 
WWUS53 KILX 151914
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
214 PM CDT Thu Jul 15 2021

ILC029-151923-
/O.CAN.KILX.TO.W.0034.000000T0000Z-210715T1930Z/
Coles-
214 PM CDT Thu Jul 15 2021

...THE TORNADO WARNING FOR COLES 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 and
heavy rain are still possible with this thunderstorm.

LAT...LON 3937 8847 3945 8847 3965 8820 3942 8802
TIME...MOT...LOC 1912Z 238DEG 24KT 3949 8817 

$$

Barnes

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 4:52 AM CDTFlash Flood WarningILXMarshall, Peoria, Stark, Woodford5 hr
Jul 15, 12:48 PM CDTSpecial Weather StatementILXChristian, Clark, Coles, Cumberland, Douglas, Edgar and 6 more117 min
Jul 15, 3:39 PM CDTSevere Thunderstorm WarningILXLogan, Mason, Menard, Sangamon66 min
Jul 15, 4:19 PM CDTSpecial Weather StatementILXDeWitt41 min
Jul 15, 4:43 PM CDTAreal Flood AdvisoryILXMcLean3 hr
Jul 15, 4:52 PM CDTSevere Thunderstorm WarningILXDeWitt, McLean, Macon, Piatt38 min
Jul 15, 5:01 PM CDTFlash Flood WarningILXDeWitt, McLean3 hr
Jul 15, 5:26 PM CDTSpecial Weather StatementILXChampaign64 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.