Alert archive / Illinois / Tornado Warnings in 2019

Tornado Warning 41, NWS St. Louis, MO

June 21, 2019Greene County, Macoupin County, Illinois

NWS St. Louis, MO issued this tornado warning at Jun 21, 2019, 11:22 AM CDT for Greene County, Macoupin County, Illinois. It was in force for 38 min. 1 report 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
Jun 21, 2019, 11:22 AM CDT (16:22 UTC)
Expired
Jun 21, 2019, 12:00 PM CDT
In force
38 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Greene County, IL, Macoupin County, IL

The radar

The St Louis radar (KLSX), 85 km from the middle of the area, began a volume at 16:25 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

TimeReportWhereRemark
Jun 21, 11:38 AM CDTHAIL 0.25White Hall, 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.

IssuedProductOfficeLasted
Jun 21, 8:28 AM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 4.4 hours before the alert went out and 168 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 12:00Z on 2019-06-21Temperature 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 12:00Z on 2019-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.193958Sfc1 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
1187 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

961 
WFUS53 KLSX 211622
TORLSX
ILC061-117-211700-
/O.NEW.KLSX.TO.W.0041.190621T1622Z-190621T1700Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
1122 AM CDT Fri Jun 21 2019

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Greene County in southwestern Illinois...
  Northwestern Macoupin County in southwestern Illinois...

* Until noon CDT.
    
* At 1121 AM CDT, severe thunderstorms capable of producing a tornado
  were located along a line extending from near Alsey to near White
  Hall to 7 miles northeast of Hardin, moving east 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.

* These dangerous storms will be near...
  White Hall, Carrollton and Roodhouse around 1125 AM CDT.
  Greenfield and Athensville around 1140 AM CDT.

Other locations impacted by these tornadic storms include Wrights,
Walkersville, Woody, Belltown, Berdan, Rockbridge, Patterson, Eldred,
Barrow and Scottville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This line of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3952 9002 3927 9013 3918 9060 3940 9052
      3952 9052
TIME...MOT...LOC 1621Z 262DEG 40KT 3952 9043 3937 9045 3922 9052 

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

$$

CVKING
2 follow-up statements
875 
WWUS53 KLSX 211634 RRA
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1134 AM CDT Fri Jun 21 2019

ILC061-117-211700-
/O.CON.KLSX.TO.W.0041.000000T0000Z-190621T1700Z/
Greene IL-Macoupin IL-
1134 AM CDT Fri Jun 21 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL NOON CDT FOR EASTERN
GREENE AND NORTHWESTERN MACOUPIN COUNTIES...
    
At 1134 AM CDT, severe thunderstorms capable of producing tornadoes
were located along a line extending from near Murrayville to near
Greenfield to near Old Kane, moving east 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.

These dangerous storms will be near...
  Athensville around 1140 AM CDT.

Other locations impacted by these tornadic storms include Wrights,
Rockbridge, Scottville and Berdan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This line of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3952 9002 3927 9013 3920 9049 3952 9032
TIME...MOT...LOC 1634Z 262DEG 40KT 3954 9024 3939 9026 3924 9033 

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

$$

CVKING
529 
WWUS53 KLSX 211648 RRA
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1148 AM CDT Fri Jun 21 2019

ILC061-117-211700-
/O.CON.KLSX.TO.W.0041.000000T0000Z-190621T1700Z/
Greene IL-Macoupin IL-
1148 AM CDT Fri Jun 21 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL NOON CDT FOR EAST
CENTRAL GREENE AND NORTHWESTERN MACOUPIN COUNTIES...
    
At 1148 AM CDT, severe thunderstorms capable of producing tornadoes
were located along a line extending from near Franklin to near
Palmyra to near Kemper, moving east 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.

These tornadic storms will remain over mainly rural areas of east
central Greene and northwestern Macoupin Counties, including the
following locations... Scottville and Rockbridge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This line of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3952 9002 3927 9013 3927 9028 3952 9015
TIME...MOT...LOC 1648Z 262DEG 40KT 3956 9004 3941 9007 3926 9014 

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

$$

CVKING

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 9:39 AM CDTSevere Thunderstorm WarningLSXAdams, Pike66 min
Jun 21, 10:01 AM CDTTornado WarningLSXAdams, Pike44 min
Jun 21, 10:17 AM CDTTornado WarningLSXPike28 min
Jun 21, 10:27 AM CDTSevere Thunderstorm WarningLSXAdams, Brown, Calhoun, Pike63 min
Jun 21, 10:35 AM CDTTornado WarningLSXAdams, Brown, Pike55 min
Jun 21, 10:39 AM CDTSevere Thunderstorm WarningLSXCalhoun51 min
Jun 21, 11:00 AM CDTSevere Thunderstorm WarningLSXGreene, Macoupin60 min
Jun 21, 11:02 AM CDTSevere Thunderstorm WarningLSXCalhoun, Greene, Jersey58 min
Jun 21, 11:45 AM CDTSevere Thunderstorm WarningLSXJersey, Macoupin, Montgomery60 min
Jun 21, 11:54 AM CDTSevere Thunderstorm WarningLSXBond, Jersey, Madison, Monroe, Saint Clair66 min
Jun 21, 12:29 PM CDTSevere Thunderstorm WarningLSXMontgomery42 min
Jun 21, 3:35 PM CDTHeat AdvisoryLSXMadison, Saint Clair19 hr
Jun 21, 3:37 PM CDTFlash Flood WatchLSXAdams, Bond, Brown, Calhoun, Clinton, Fayette and 9 more21 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.