Alert archive / Illinois / Tornado Warnings in 2021
Tornado Warning 17, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Jun 26, 2021, 1:22 PM CDT for Greene County, Illinois. It was in force for 15 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 26, 2021, 1:22 PM CDT (18:22 UTC)
- Expired
- Jun 26, 2021, 1:37 PM CDT
- In force
- 15 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Greene County, IL
The radar
The St Louis radar (KLSX), 91 km from the middle of the area, began a volume at 18:22 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 |
|---|---|---|---|
| Jun 26, 1:28 PM CDT | TORNADO | Barrow, IL | SHERIFFS DEPUTY REPORTED A TORNADO IN A FIELD TO THE NORTHWEST OF ROODHOUSE, IL MOVING TOWARD MANCHESTER, IL. NO DAMAGE WAS REPORTED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 6.4 hours before the alert went out and 172 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.
- Mixed-layer CAPE
- 683 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 684 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 263 m²/s²
- 0-3 km storm-relative helicity
- 229 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.1
The text
As transmitted.
176
WFUS53 KLSX 261822
TORLSX
ILC061-261900-
/O.NEW.KLSX.TO.W.0017.210626T1822Z-210626T1900Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
122 PM CDT Sat Jun 26 2021
The National Weather Service in St Louis has issued a
* Tornado Warning for...
North central Greene County in southwestern Illinois...
* Until 200 PM CDT.
* At 122 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Roodhouse, moving northeast at 30 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...
Roodhouse around 130 PM CDT.
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 3952 9027 3944 9047 3945 9051 3948 9052
3952 9048
TIME...MOT...LOC 1822Z 234DEG 28KT 3949 9045
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
CVKING1 follow-up statement
332
WWUS53 KLSX 261837
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
137 PM CDT Sat Jun 26 2021
ILC061-261847-
/O.CAN.KLSX.TO.W.0017.000000T0000Z-210626T1900Z/
Greene IL-
137 PM CDT Sat Jun 26 2021
...THE TORNADO WARNING FOR NORTH CENTRAL GREENE COUNTY IS
CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
St Louis.
LAT...LON 3952 9027 3944 9047 3945 9051 3948 9052
3952 9048
TIME...MOT...LOC 1836Z 234DEG 28KT 3956 9032
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 7:15 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Pike | 45 min |
| Jun 25, 7:32 PM CDT | Flash Flood Warning | LSX | Adams, Pike | 6 hr |
| Jun 25, 9:29 PM CDT | Flash Flood Warning | LSX | Calhoun, Greene, Jersey | 6 hr |
| Jun 26, 1:25 AM CDT | Areal Flood Warning | LSX | Adams, Pike | 14 hr |
| Jun 26, 3:29 AM CDT | Areal Flood Warning | LSX | Calhoun, Greene, Jersey | 9 hr |
| Jun 26, 11:44 AM CDT | River Flood Warning | LSX | Madison | 7 days |
| Jun 26, 12:13 PM CDT | River Flood Warning | LSX | Jackson, Randolph | 9 days |
| Jun 26, 1:37 PM CDT | Tornado Warning | LSX | Calhoun | 38 min |
| Jun 26, 2:09 PM CDT | Severe Thunderstorm Warning | LSX | Greene | 51 min |
Nearby
Tornado Warnings in Illinois, 2021Every tornado warning in 2021Tornadoes in 2021
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.