Alert archive / Illinois / Tornado Warnings in 2019

Tornado Warning 18, NWS St. Louis, MO

May 21, 2019Bond County, Madison County, Illinois

NWS St. Louis, MO issued this tornado warning at May 21, 2019, 7:46 PM CDT for Bond County, Madison County, Illinois. It was in force for 29 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 21, 2019, 7:46 PM CDT (00:46 UTC)
Expired
May 21, 2019, 8:15 PM CDT
In force
29 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Bond County, IL, Madison County, IL

The radar

The St Louis radar (KLSX), 86 km from the middle of the area, began a volume at 00:49 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
May 21, 3:10 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.8 hours before the alert went out and 177 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 2019-05-22Temperature 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 00:00Z on 2019-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 466 square meters per square second.1939587897Sfc1 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
667 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
466 m²/s²
0-3 km storm-relative helicity
506 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

As transmitted.

923 
WFUS53 KLSX 220046
TORLSX
ILC005-119-220115-
/O.NEW.KLSX.TO.W.0018.190522T0046Z-190522T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
746 PM CDT Tue May 21 2019

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Northwestern Bond County in south central Illinois...
  Eastern Madison County in southwestern Illinois...

* Until 815 PM CDT.
    
* At 745 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Marine, moving northeast at 45 mph.

  HAZARD...Tornado and quarter 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...
  Alhambra around 755 PM CDT.
  Sorento and Reno around 810 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Kaufman, New Douglas, Grantfork and Old Ripley.

This includes Interstate 70 in Illinois between exits 21 and 30.
 
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 3866 8974 3865 8975 3881 8986 3900 8969
      3900 8939
TIME...MOT...LOC 0045Z 219DEG 40KT 3878 8977 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

BSH
2 follow-up statements
516 
WWUS53 KLSX 220056
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
756 PM CDT Tue May 21 2019

ILC005-119-220115-
/O.CON.KLSX.TO.W.0018.000000T0000Z-190522T0115Z/
Bond IL-Madison IL-
756 PM CDT Tue May 21 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHWESTERN BOND COUNTY IN SOUTH CENTRAL ILLINOIS AND NORTHEASTERN
MADISON COUNTIES IN SOUTHWESTERN ILLINOIS...
    
At 756 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Alhambra, moving northeast at 45 mph.

HAZARD...Tornado and quarter 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...
  Sorento and Reno around 810 PM CDT.

Other locations impacted by this tornadic thunderstorm include New
Douglas, Grantfork and Old Ripley.

This includes Interstate 70 in Illinois near exit 30.
 
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 3873 8967 3891 8977 3900 8969 3900 8939
TIME...MOT...LOC 0056Z 219DEG 40KT 3888 8967 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

BSH
360 
WWUS53 KLSX 220104
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
804 PM CDT Tue May 21 2019

ILC119-220113-
/O.CAN.KLSX.TO.W.0018.000000T0000Z-190522T0115Z/
Madison IL-
804 PM CDT Tue May 21 2019

...THE TORNADO WARNING FOR NORTHEASTERN MADISON COUNTY IN
SOUTHWESTERN ILLINOIS IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1000 PM CDT for south central
and southwestern Illinois.

LAT...LON 3880 8960 3887 8960 3887 8963 3888 8964
      3900 8964 3900 8939
TIME...MOT...LOC 0103Z 219DEG 40KT 3895 8960 

$$

ILC005-220115-
/O.CON.KLSX.TO.W.0018.000000T0000Z-190522T0115Z/
Bond IL-
804 PM CDT Tue May 21 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHWESTERN BOND COUNTY...
    
At 803 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Sorento, moving northeast at 45 mph.

HAZARD...Tornado and quarter 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 tornadic thunderstorm will remain over mainly rural areas of
northwestern Bond County, including the following locations... Old
Ripley.

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 3880 8960 3887 8960 3887 8963 3888 8964
      3900 8964 3900 8939
TIME...MOT...LOC 0103Z 219DEG 40KT 3895 8960 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

BSH

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 21, 7:08 PM CDTTornado WarningLSXMadison, Saint Clair37 min
May 21, 7:36 PM CDTSevere Thunderstorm WarningLSXBond, Clinton, Macoupin, Madison, Montgomery39 min
May 21, 7:56 PM CDTSevere Thunderstorm WarningLSXBond, Clinton, Marion, Saint Clair, Washington53 min
May 21, 8:08 PM CDTSevere Thunderstorm WarningLSXBond, Clinton, Fayette, Montgomery52 min
May 21, 8:27 PM CDTTornado WarningLSXBond, Clinton, Fayette, Marion21 min
May 21, 8:45 PM CDTSevere Thunderstorm WarningLSXClinton, Fayette, Marion, Montgomery45 min
May 22, 9:36 AM CDTRiver Flood WarningLSXBrown14 days
May 22, 9:52 AM CDTRiver Flood WarningLSXFayette4 days
May 22, 1:53 PM CDTFlash Flood WatchLSXAdams14 hr

Nearby

Tornado Warnings in Illinois, 2019Every tornado warning in 2019Tornadoes in 2019

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.