Alert archive / Illinois / Tornado Warnings in 2019

Tornado Warning 6, NWS St. Louis, MO

April 30, 2019Madison County, Illinois

NWS St. Louis, MO issued this tornado warning at Apr 30, 2019, 2:55 PM CDT for Madison County, Illinois. It was in force for 36 min. 2 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: Apr 30, 2019, 2:55 PM CDT (19:55 UTC)
Expired: Apr 30, 2019, 3:31 PM CDT
In force: 36 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Madison County, IL

The radar

The St Louis radar (KLSX), 77 km from the middle of the area, began a volume at 19:57 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

Time	Report	Where	Remark
Apr 30, 3:05 PM CDT	HAIL 1.5	Kaufman, IL	TRAINED SPOTTER REPORTED HAIL ALONG LEADING EDGE OF THE STORM.
Apr 30, 3:05 PM CDT	HAIL 1.75	Alhambra, IL

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.

Issued	Product	Office	Lasted
Apr 30, 1:00 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 7.9 hours before the alert went out and 180 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: 914 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 117 m²/s²
0-3 km storm-relative helicity: 289 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

481 
WFUS53 KLSX 301955
TORLSX
ILC119-302045-
/O.NEW.KLSX.TO.W.0006.190430T1955Z-190430T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
255 PM CDT Tue Apr 30 2019

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Northeastern Madison County in southwestern Illinois...

* Until 345 PM CDT.
    
* At 255 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Edwardsville, moving east at 15 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...
  Marine around 315 PM CDT.
  Alhambra around 330 PM CDT.
  Highland around 340 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Kaufman, Grantfork, Kuhn, Fruit, Hamel and New Douglas.

This includes the following highways...
 Interstate 70 in Illinois between exits 24 and 30.
 Interstate 55 in Illinois between exits 23 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 3877 8991 3887 8995 3897 8966 3876 8962
TIME...MOT...LOC 1955Z 251DEG 13KT 3882 8989 

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

$$

Carney

3 follow-up statements

479 
WWUS53 KLSX 302002
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
302 PM CDT Tue Apr 30 2019

ILC119-302045-
/O.CON.KLSX.TO.W.0006.000000T0000Z-190430T2045Z/
Madison IL-
302 PM CDT Tue Apr 30 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM CDT FOR EAST
CENTRAL MADISON COUNTY IN SOUTHWESTERN ILLINOIS...
    
At 302 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Marine, moving east at 20 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 315 PM CDT.
  Highland around 325 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Kaufman, Grantfork, Fruit and Hamel.

This includes Interstate 70 in Illinois between exits 24 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 3878 8986 3887 8990 3893 8965 3876 8962
TIME...MOT...LOC 2002Z 262DEG 18KT 3883 8982 

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

$$

Carney

837 
WWUS53 KLSX 302014
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
314 PM CDT Tue Apr 30 2019

ILC119-302045-
/O.CON.KLSX.TO.W.0006.000000T0000Z-190430T2045Z/
Madison IL-
314 PM CDT Tue Apr 30 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM CDT FOR EAST
CENTRAL MADISON COUNTY IN SOUTHWESTERN ILLINOIS...
    
At 314 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Alhambra, moving east at 25 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...
  Highland around 325 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Kaufman, Grantfork, Fruit and Hamel.

This includes Interstate 70 in Illinois between exits 24 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 3878 8986 3887 8990 3893 8965 3876 8962
TIME...MOT...LOC 2014Z 256DEG 20KT 3886 8976 

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

$$

Carney

711 
WWUS53 KLSX 302031
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
331 PM CDT Tue Apr 30 2019

ILC119-302040-
/O.CAN.KLSX.TO.W.0006.000000T0000Z-190430T2045Z/
Madison IL-
331 PM CDT Tue Apr 30 2019

...THE TORNADO WARNING FOR EAST CENTRAL MADISON COUNTY IN
SOUTHWESTERN ILLINOIS IS CANCELLED...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
southwestern Illinois.

LAT...LON 3878 8986 3887 8990 3893 8965 3876 8962
TIME...MOT...LOC 2028Z 251DEG 13KT 3888 8969 

$$

Carney

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 3:43 AM CDT	Flash Flood Watch	LSX	Greene	63 hr
Apr 30, 11:38 AM CDT	River Flood Warning	LSX	Brown	75 days
Apr 30, 11:38 AM CDT	River Flood Warning	LSX	Morgan, Pike	75 days
Apr 30, 2:04 PM CDT	Special Weather Statement	LSX	Madison	41 min
Apr 30, 2:31 PM CDT	Severe Thunderstorm Warning	LSX	Madison	44 min
Apr 30, 2:58 PM CDT	Severe Thunderstorm Warning	LSX	Clinton, Madison, Saint Clair	47 min
Apr 30, 3:06 PM CDT	Areal Flood Advisory	LSX	Madison, Saint Clair	3 hr
Apr 30, 3:11 PM CDT	Severe Thunderstorm Warning	LSX	Madison	49 min
Apr 30, 3:28 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Madison, Montgomery	47 min
Apr 30, 3:53 PM CDT	Areal Flood Advisory	LSX	Bond, Montgomery	3 hr
Apr 30, 4:06 PM CDT	Severe Thunderstorm Warning	LSX	Clinton, Madison, Saint Clair	39 min
Apr 30, 4:12 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Fayette, Montgomery	38 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.