Alert archive / Illinois / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 13, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Feb 22, 2023, 2:26 PM CST for Randolph County, Saint Clair County, Washington County, Illinois. It was in force for 64 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
- Feb 22, 2023, 2:26 PM CST (20:26 UTC)
- Expired
- Feb 22, 2023, 3:30 PM CST
- In force
- 64 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Randolph County, IL, Saint Clair County, IL, Washington County, IL
The radar
The St Louis radar (KLSX), 117 km from the middle of the area, began a volume at 20:28 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 22, 2:55 PM CST | TSTM WND GST 51 | 1 E Sparta, IL | CORRECTS PREVIOUS TSTM WND GST REPORT FROM 1 E SPARTA. MEASURED BY KSAR AWOS. |
| Feb 22, 2:55 PM CST | TSTM WND GST 51 | 1 E Sparta, IL | MEASURED BY KSAR AWOS. |
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 |
|---|---|---|---|
| Feb 22, 12:20 PM CST | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.4 hours before the alert went out and 250 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 774 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- 653 m²/s²
- 0-3 km storm-relative helicity
- 724 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted.
901
WUUS53 KLSX 222026
SVRLSX
ILC157-163-189-222130-
/O.NEW.KLSX.SV.W.0013.230222T2026Z-230222T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
226 PM CST Wed Feb 22 2023
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Washington County in south central Illinois...
Randolph County in southwestern Illinois...
Southeastern St. Clair County in southwestern Illinois...
* Until 330 PM CST.
* At 226 PM CST, severe thunderstorms were located along a line
extending from near Baldwin to near Evansville to 6 miles east of
Womac, moving east at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* These severe thunderstorms will remain over mainly rural areas of
Washington, Randolph and southeastern St. Clair Counties, including
the following locations... Walsh, Radom, Preston, Huegely, Welge,
Posen, New Minden, Eden, Oakdale and Cordes.
This includes Interstate 64 in Illinois between exits 50 and 61.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 600 PM CST for south central
and southwestern Illinois...and southeastern Missouri.
For your protection move to an interior room on the lowest floor of a
building.
Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.
A Tornado Watch remains in effect until 600 PM CST for south central
and southwestern Illinois...and southeastern Missouri.
&&
LAT...LON 3822 8959 3795 8960 3783 8968 3781 8967
3785 8974 3785 8979 3788 8980 3791 8984
3787 8990 3788 8994 3822 8989 3851 8920
3850 8914 3821 8915
TIME...MOT...LOC 2026Z 248DEG 48KT 3824 8991 3809 8988 3766 9008
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MRM3 follow-up statements
885
WWUS53 KLSX 222055
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
255 PM CST Wed Feb 22 2023
ILC157-163-222105-
/O.CAN.KLSX.SV.W.0013.000000T0000Z-230222T2130Z/
Randolph IL-St. Clair IL-
255 PM CST Wed Feb 22 2023
...THE SEVERE THUNDERSTORM WARNING FOR RANDOLPH AND SOUTHEASTERN ST.
CLAIR COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 600 PM CST for south central
Illinois.
LAT...LON 3821 8915 3822 8959 3834 8961 3851 8920
3850 8914
TIME...MOT...LOC 2055Z 255DEG 44KT 3834 8954 3819 8951 3776 8971
$$
ILC189-222130-
/O.CON.KLSX.SV.W.0013.000000T0000Z-230222T2130Z/
Washington IL-
255 PM CST Wed Feb 22 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CST
FOR WASHINGTON COUNTY...
At 255 PM CST, severe thunderstorms were located along a line
extending from near Lively Grove to near Coulterville to 8 miles east
of Perryville, moving east at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe thunderstorms will remain over mainly rural areas of
Washington County, including the following locations: Radom...
Huegely...Posen...Beaucoup...Du Bois...New Minden...Oakdale...
Cordes...Hoyleton and Elkton.
This includes Interstate 64 in Illinois between exits 50 and 61.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 600 PM CST for south central
Illinois.
For your protection move to an interior room on the lowest floor of a
building.
Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.
&&
LAT...LON 3821 8915 3822 8959 3834 8961 3851 8920
3850 8914
TIME...MOT...LOC 2055Z 255DEG 44KT 3834 8954 3819 8951 3776 8971
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MRM373
WWUS53 KLSX 222107
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
307 PM CST Wed Feb 22 2023
ILC189-222130-
/O.CON.KLSX.SV.W.0013.000000T0000Z-230222T2130Z/
Washington IL-
307 PM CST Wed Feb 22 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CST
FOR EASTERN WASHINGTON COUNTY...
At 307 PM CST, severe thunderstorms were located along a line
extending from 9 miles west of Irvington to 6 miles south of
Nashville to near Pinckneyville, moving northeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe thunderstorms will remain over mainly rural areas of
eastern Washington County, including the following locations:
Radom...Huegely...Posen...Beaucoup...Du Bois...New Minden...Cordes...
Hoyleton and Richview.
This includes Interstate 64 in Illinois between exits 50 and 61.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 600 PM CST for south central
Illinois.
For your protection move to an interior room on the lowest floor of a
building.
Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.
&&
LAT...LON 3822 8948 3841 8945 3851 8920 3850 8914
3821 8915
TIME...MOT...LOC 2107Z 246DEG 45KT 3845 8933 3825 8934 3815 8940
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MRB038
WWUS53 KLSX 222120
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
320 PM CST Wed Feb 22 2023
ILC189-222130-
/O.EXP.KLSX.SV.W.0013.000000T0000Z-230222T2130Z/
Washington IL-
320 PM CST Wed Feb 22 2023
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN WASHINGTON COUNTY WILL
EXPIRE AT 330 PM CST...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with these thunderstorms.
A Tornado Watch remains in effect until 600 PM CST for south central
Illinois.
LAT...LON 3822 8948 3841 8945 3851 8920 3850 8914
3821 8915
TIME...MOT...LOC 2120Z 248DEG 48KT 3851 8915 3831 8916 3821 8922
$$
MRBThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 22, 7:41 AM CST | Severe Thunderstorm Warning | LSX | Calhoun, Jersey | 34 min |
| Feb 22, 12:41 PM CST | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey | 64 min |
| Feb 22, 1:53 PM CST | Severe Thunderstorm Warning | LSX | Monroe, Randolph | 52 min |
| Feb 22, 1:57 PM CST | Severe Thunderstorm Warning | LSX | Jersey, Macoupin, Madison, Montgomery | 63 min |
| Feb 22, 2:01 PM CST | Severe Thunderstorm Warning | LSX | Bond, Clinton, Madison, Monroe, Saint Clair, Washington | 59 min |
| Feb 22, 2:51 PM CST | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Marion, Washington | 54 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2023Every severe thunderstorm warning in 2023
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.