Alert archive / Illinois / Tornado Warnings in 2020

Tornado Warning 10, NWS Lincoln, IL

May 28, 2020Christian County, Illinois

NWS Lincoln, IL issued this tornado warning at May 28, 2020, 6:15 PM CDT for Christian County, Illinois. It was in force for 30 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: May 28, 2020, 6:15 PM CDT (23:15 UTC)
Expired: May 28, 2020, 6:45 PM CDT
In force: 30 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Tornado: Observed
Hail: 1.0 in

County Christian County, IL

The radar

The Lincoln radar (KILX), 77 km from the middle of the area, began a volume at 23:15 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, 11.3 hours before the alert went out and 107 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: 60 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 966 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: -37 m²/s²
0-3 km storm-relative helicity: 28 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

700 
WFUS53 KILX 282315
TORILX
ILC021-282345-
/O.NEW.KILX.TO.W.0010.200528T2315Z-200528T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lincoln IL
615 PM CDT Thu May 28 2020

The National Weather Service in Lincoln has issued a

* Tornado Warning for...
  Southwestern Christian County in central Illinois...

* Until 645 PM CDT.

* At 614 PM CDT, a confirmed tornado was located near Harvel, or 5 
  miles southwest of Morrisonville, moving northeast at 25 mph.

  HAZARD...Damaging tornado and quarter size hail.

  SOURCE...Weather spotters confirmed tornado.

  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.

* The tornado will be near...
  Morrisonville around 625 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Palmer.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3947 8953 3957 8946 3945 8931 3936 8953
TIME...MOT...LOC 2314Z 229DEG 23KT 3940 8954 

TORNADO...OBSERVED
HAIL...1.00IN

$$

Auten

2 follow-up statements

995 
WWUS53 KILX 282331
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
631 PM CDT Thu May 28 2020

ILC021-282345-
/O.CON.KILX.TO.W.0010.000000T0000Z-200528T2345Z/
Christian-
631 PM CDT Thu May 28 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
SOUTHWESTERN CHRISTIAN COUNTY...
    
At 631 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Morrisonville, or 9 miles west of Taylorville,
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 tornadic thunderstorm will remain over mainly rural areas of
southwestern Christian County, including the following locations...
Palmer.

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 3947 8948 3957 8946 3945 8931 3942 8944
TIME...MOT...LOC 2331Z 229DEG 23KT 3947 8943 

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

$$

Auten

041 
WWUS53 KILX 282338
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
638 PM CDT Thu May 28 2020

ILC021-282348-
/O.EXP.KILX.TO.W.0010.000000T0000Z-200528T2345Z/
Christian-
638 PM CDT Thu May 28 2020

...THE TORNADO WARNING FOR SOUTHWESTERN CHRISTIAN COUNTY WILL EXPIRE
AT 645 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

LAT...LON 3947 8948 3957 8946 3945 8931 3942 8944
TIME...MOT...LOC 2338Z 229DEG 23KT 3950 8939 

$$

Auten

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 4:28 PM CDT	Special Weather Statement	ILX	Marshall, Peoria	47 min
May 28, 4:46 PM CDT	Tornado Warning	ILX	Marshall, Peoria	15 min
May 28, 5:37 PM CDT	Special Weather Statement	ILX	DeWitt	23 min
May 28, 6:03 PM CDT	Flash Flood Warning	ILX	Marshall	3 hr

Nearby

Tornado Warnings in Illinois, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.