Alert archive / Illinois / Tornado Warnings in 2019

Tornado Warning 50, NWS St. Louis, MO

November 26, 2019Clinton County, Madison County, Saint Clair County, Illinois

NWS St. Louis, MO issued this tornado warning at Nov 26, 2019, 10:37 PM CST for Clinton County, Madison County, Saint Clair County, Illinois. It was in force for 38 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: Nov 26, 2019, 10:37 PM CST (04:37 UTC)
Expired: Nov 26, 2019, 11:15 PM CST
In force: 38 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Clinton County, IL, Madison County, IL, Saint Clair County, IL

The radar

The St Louis radar (KLSX), 89 km from the middle of the area, began a volume at 04:37 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.

Issued	Product	Office	Lasted
Nov 26, 10:22 PM CST	Tornado Watch	SPC	4 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 4.6 hours before the alert went out and 194 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 596 m above ground
0-6 km bulk shear: 78 kt
0-1 km storm-relative helicity: 417 m²/s²
0-3 km storm-relative helicity: 467 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

191 
WFUS53 KLSX 270437
TORLSX
ILC027-119-163-270515-
/O.NEW.KLSX.TO.W.0050.191127T0437Z-191127T0515Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
1037 PM CST Tue Nov 26 2019

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Northwestern Clinton County in south central Illinois...
  Southeastern Madison County in southwestern Illinois...
  Northeastern St. Clair County in southwestern Illinois...

* Until 1115 PM CST.
    
* At 1037 PM CST, a severe thunderstorm capable of producing a
  tornado was located over Freeburg, moving northeast at 45 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...
  Mascoutah around 1045 PM CST.
  Scott AFB around 1050 PM CST.
  Lebanon, New Baden and New Memphis around 1055 PM CST.
  Trenton, Aviston and Albers around 1105 PM CST.
  Germantown around 1110 PM CST.
  Breese and St. Rose around 1115 PM CST.

Other locations impacted by this tornadic thunderstorm include
Bartelso, Summerfield and Damiansville.

This includes Interstate 64 in Illinois between exits 19 and 34.
 
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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3855 8941 3837 8999 3852 9005 3877 8960
      3874 8960 3874 8956
TIME...MOT...LOC 0437Z 238DEG 38KT 3846 8995 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Carney

2 follow-up statements

989 
WWUS53 KLSX 270459
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1059 PM CST Tue Nov 26 2019

ILC163-270508-
/O.CAN.KLSX.TO.W.0050.000000T0000Z-191127T0515Z/
St. Clair IL-
1059 PM CST Tue Nov 26 2019

...THE TORNADO WARNING FOR NORTHEASTERN ST. CLAIR COUNTY 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 300 AM CST for south central
and southwestern Illinois.

LAT...LON 3855 8941 3846 8971 3865 8971 3866 8980
      3877 8960 3874 8960 3874 8956
TIME...MOT...LOC 0458Z 238DEG 47KT 3860 8966 

$$

ILC027-119-270515-
/O.CON.KLSX.TO.W.0050.000000T0000Z-191127T0515Z/
Clinton IL-Madison IL-
1059 PM CST Tue Nov 26 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 PM CST FOR
NORTHWESTERN CLINTON COUNTY IN SOUTH CENTRAL ILLINOIS AND
SOUTHEASTERN MADISON COUNTIES IN SOUTHWESTERN ILLINOIS...
    
At 1058 PM CST, a severe thunderstorm capable of producing a tornado
was located over Trenton, moving northeast at 55 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...
  Breese and St. Rose around 1105 PM CST.

Other locations impacted by this tornadic thunderstorm include
Bartelso and Damiansville.

This includes Interstate 64 in Illinois near exit 34.
 
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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3855 8941 3846 8971 3865 8971 3866 8980
      3877 8960 3874 8960 3874 8956
TIME...MOT...LOC 0458Z 238DEG 47KT 3860 8966 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Carney

264 
WWUS53 KLSX 270515
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1115 PM CST Tue Nov 26 2019

ILC027-119-270525-
/O.EXP.KLSX.TO.W.0050.000000T0000Z-191127T0515Z/
Clinton IL-Madison IL-
1115 PM CST Tue Nov 26 2019

...THE TORNADO WARNING FOR NORTHWESTERN CLINTON COUNTY IN SOUTH
CENTRAL ILLINOIS AND SOUTHEASTERN MADISON COUNTIES IN SOUTHWESTERN
ILLINOIS HAS EXPIRED...
                
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 allowed to expire.  However gusty
winds are still possible with this thunderstorm.

A Tornado Watch remains in effect until 300 AM CST for south central
and southwestern Illinois.

LAT...LON 3855 8941 3846 8971 3865 8971 3866 8980
      3877 8960 3874 8960 3874 8956
TIME...MOT...LOC 0515Z 238DEG 38KT 3870 8947 

$$

Carney

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 26, 10:20 PM CST	Severe Thunderstorm Warning	LSX	Adams, Pike	40 min
Nov 26, 10:55 PM CST	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	35 min
Nov 26, 11:01 PM CST	Severe Thunderstorm Warning	LSX	Randolph	29 min
Nov 27, 12:02 AM CST	Severe Thunderstorm Warning	LSX	Marion	28 min

Nearby

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