Alert archive / Illinois / Tornado Warnings in 2021

Tornado Warning 3, NWS Lincoln, IL

May 3, 2021Cass County, Morgan County, Illinois

NWS Lincoln, IL issued this tornado warning at May 3, 2021, 4:50 PM CDT for Cass County, Morgan County, Illinois. It was in force for 25 min. 4 reports 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
May 3, 2021, 4:50 PM CDT (21:50 UTC)
Expired
May 3, 2021, 5:15 PM CDT
In force
25 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.75 in

Counties Cass County, IL, Morgan County, IL

The radar

The Lincoln radar (KILX), 88 km from the middle of the area, began a volume at 21:53 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
May 3, 4:55 PM CDTHAIL 1.53 Sse Bluff Springs, IL
May 3, 4:57 PM CDTTORNADO3 Ene Arenzville, ILDELAYED REPORT FOR MAY 3: BASED ON A VIDEO FROM A STORM CHASER, A TORNADO OCCURRED MAINLY IN FIELDS ALONG CRUM ROAD. THE TORNADO CROSSED CRUM ROAD AND LASTED 2-3 MINUTES. THERE WERE NO REPORTS OF DAMAGE TO THE NEARBY FARMSTEADS.
May 3, 5:04 PM CDTHAIL 1.5Virginia, ILRELAYED BY BROADCAST MEDIA. DAMAGE TO CARS.
May 3, 5:05 PM CDTTORNADO3 S Virginia, ILON GROUND IN OPEN FIELD. DIME SIZED HAIL.

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
May 3, 2:47 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.8 hours before the alert went out and 148 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 2021-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2021-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
460 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

668 
WFUS53 KILX 032150
TORILX
ILC017-137-032215-
/O.NEW.KILX.TO.W.0003.210503T2150Z-210503T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lincoln IL
450 PM CDT Mon May 3 2021

The National Weather Service in Lincoln has issued a

* Tornado Warning for...
  Southeastern Cass County in west central Illinois...
  North central Morgan County in west central Illinois...

* Until 515 PM CDT.
    
* At 450 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Arenzville, or 7 miles southeast of Beardstown,
  moving east at 30 mph.

  HAZARD...Tornado and golf ball size hail.

  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...
  Virginia and Literberry around 510 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Philadelphia.

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 3989 9045 3995 9044 3998 9011 3982 9012
TIME...MOT...LOC 2150Z 265DEG 26KT 3991 9037 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

37
1 follow-up statement
503 
WWUS53 KILX 032157
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
457 PM CDT Mon May 3 2021

ILC017-137-032215-
/O.CON.KILX.TO.W.0003.000000T0000Z-210503T2215Z/
Cass-Morgan-
457 PM CDT Mon May 3 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR
SOUTHEASTERN CASS AND NORTH CENTRAL MORGAN COUNTIES...
    
At 456 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Arenzville, or near Virginia, moving east at 35 mph.

HAZARD...Tornado and two inch hail.

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...
  Virginia and Literberry around 505 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Philadelphia.

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 3987 9032 3993 9031 3998 9011 3982 9012
TIME...MOT...LOC 2156Z 272DEG 29KT 3990 9028 

TORNADO...RADAR INDICATED
HAIL...2.00IN

$$

37

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 3:31 PM CDTSpecial Weather StatementILXKnox29 min
May 3, 3:59 PM CDTSevere Thunderstorm WarningILXCass, Morgan, Schuyler46 min
May 3, 4:10 PM CDTSpecial Weather StatementILXSchuyler35 min
May 3, 4:30 PM CDTSpecial Weather StatementILXFulton30 min
May 3, 4:43 PM CDTSevere Thunderstorm WarningILXCass, Menard, Morgan, Sangamon, Schuyler47 min
May 3, 5:00 PM CDTSpecial Weather StatementILXMason, Menard30 min
May 3, 5:08 PM CDTTornado WarningILXCass, Menard, Morgan, Sangamon37 min
May 3, 5:17 PM CDTSevere Thunderstorm WarningILXCass, Logan, Mason, Menard43 min
May 3, 5:25 PM CDTSevere Thunderstorm WarningILXMorgan, Scott33 min
May 3, 5:30 PM CDTTornado Warning Tornado observedILXMenard, Sangamon30 min
May 3, 5:52 PM CDTTornado WarningILXLogan, Menard, Sangamon23 min
May 3, 6:02 PM CDTSpecial Weather StatementILXLogan43 min
May 3, 6:16 PM CDTTornado Warning Tornado observedILXChristian, Logan, Macon, Sangamon29 min
May 3, 6:37 PM CDTSevere Thunderstorm WarningILXChristian, Macon, Sangamon53 min
May 3, 6:42 PM CDTTornado Warning Tornado observedILXMacon33 min
May 3, 6:54 PM CDTSevere Thunderstorm WarningILXChristian, Sangamon51 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.