Alert archive / Illinois / Tornado Warnings in 2019

Tornado Warning 19, NWS St. Louis, MO

May 21, 20194 counties in Illinois

NWS St. Louis, MO issued this tornado warning at May 21, 2019, 8:27 PM CDT for 4 counties in Illinois. It was in force for 21 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, 8:27 PM CDT (01:27 UTC)
Expired: May 21, 2019, 8:48 PM CDT
In force: 21 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Bond County, IL, Clinton County, IL, Fayette County, IL, Marion County, IL

The radar

The St Louis radar (KLSX), 120 km from the middle of the area, began a volume at 01:28 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
May 21, 3:10 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.5 hours before the alert went out and 174 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: 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.

331 
WFUS53 KLSX 220127
TORLSX
ILC005-027-051-121-220215-
/O.NEW.KLSX.TO.W.0019.190522T0127Z-190522T0215Z/

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

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Northeastern Clinton County in south central Illinois...
  Southeastern Bond County in south central Illinois...
  Northwestern Marion County in south central Illinois...
  Southwestern Fayette County in south central Illinois...

* Until 915 PM CDT.
    
* At 826 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Beckemeyer, moving northeast at 40 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.

* Locations impacted include...
  Breese, Carlyle, Beckemeyer, Patoka, Tamalco, Beaver Creek,
  Boulder, Shobonier, Pleasant Mound, Bartelso, Pittsburg, Keyesport,
  Huey, Vernon, Stolletown and Hagerstown.

This also includes Carlyle Lake Recreational Area.
 
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 3850 8944 3865 8956 3896 8917 3880 8892
TIME...MOT...LOC 0126Z 227DEG 37KT 3861 8945 

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

$$

Kanofsky

2 follow-up statements

053 
WWUS53 KLSX 220143
SVSLSX

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

ILC005-027-051-121-220215-
/O.CON.KLSX.TO.W.0019.000000T0000Z-190522T0215Z/
Clinton IL-Bond IL-Marion IL-Fayette IL-
843 PM CDT Tue May 21 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR
NORTHEASTERN CLINTON...SOUTHEASTERN BOND...NORTHWESTERN MARION AND
SOUTHWESTERN FAYETTE COUNTIES...
    
At 841 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Tamalco, 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.

Locations impacted include...
Carlyle, Patoka, Tamalco, Beaver Creek, Boulder, Shobonier, Pleasant
Mound, Pittsburg, Keyesport, Vernon, Hagerstown and Stolletown.

This also includes Carlyle Lake Recreational Area.
 
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 3858 8935 3871 8948 3896 8917 3880 8892
TIME...MOT...LOC 0141Z 227DEG 37KT 3872 8930 

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

$$

Kanofsky

300 
WWUS53 KLSX 220148
SVSLSX

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

ILC005-027-051-121-220157-
/O.CAN.KLSX.TO.W.0019.000000T0000Z-190522T0215Z/
Clinton IL-Bond IL-Marion IL-Fayette IL-
848 PM CDT Tue May 21 2019

...THE TORNADO WARNING FOR NORTHEASTERN CLINTON...SOUTHEASTERN
BOND...NORTHWESTERN MARION AND SOUTHWESTERN FAYETTE COUNTIES IS
CANCELLED...
    
The tornado threat has diminished and the Tornado Warning has been 
cancelled. However, hail and damaging winds remain likely and a 
Severe Thunderstorm Warning remains in effect for the area.

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

LAT...LON 3858 8935 3871 8948 3896 8917 3880 8892
TIME...MOT...LOC 0146Z 227DEG 37KT 3877 8923 

$$

Kanofsky

The office that day

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

Issued	Product	Office	Counties	Lasted
May 21, 7:08 PM CDT	Tornado Warning	LSX	Madison, Saint Clair	37 min
May 21, 7:36 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Macoupin, Madison, Montgomery	39 min
May 21, 7:46 PM CDT	Tornado Warning	LSX	Bond, Madison	29 min
May 21, 7:56 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Marion, Saint Clair, Washington	53 min
May 21, 8:08 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Montgomery	52 min
May 21, 8:45 PM CDT	Severe Thunderstorm Warning	LSX	Clinton, Fayette, Marion, Montgomery	45 min
May 22, 9:36 AM CDT	River Flood Warning	LSX	Brown	14 days
May 22, 9:52 AM CDT	River Flood Warning	LSX	Fayette	4 days
May 22, 1:53 PM CDT	Flash Flood Watch	LSX	Adams	14 hr

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.