Alert archive / Illinois / Tornado Warnings in 2023
Tornado Warning 17, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Apr 15, 2023, 7:08 PM CDT for Jersey County, Macoupin County, Madison County, Illinois. It was in force for 52 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 15, 2023, 7:08 PM CDT (00:08 UTC)
- Expired
- Apr 15, 2023, 8:00 PM CDT
- In force
- 52 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Jersey County, IL, Macoupin County, IL, Madison County, IL
The radar
The St Louis radar (KLSX), 78 km from the middle of the area, began a volume at 00:08 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 15, 7:08 PM CDT | TSTM WND DMG | 1 Sw Bethalto, IL | LARGE PORTION OF HANGER ROOF AT ST. LOUIS REGIONAL AIRPORT (KALN) WAS PEELED OFF. VIA FACEBOOK WITH PICTURE. |
| Apr 15, 7:08 PM CDT | TSTM WND DMG | 1 W Bethalto, IL | TREE WITH ESTIMATED DIAMETER OF 2 FT SNAPPED. |
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 15, 4:03 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.1 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.
- Mixed-layer CAPE
- 647 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 1647 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
678
WFUS53 KLSX 160008
TORLSX
ILC083-117-119-160100-
/O.NEW.KLSX.TO.W.0017.230416T0008Z-230416T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
708 PM CDT Sat Apr 15 2023
The National Weather Service in St Louis has issued a
* Tornado Warning for...
North central Madison County in southwestern Illinois...
Southern Macoupin County in southwestern Illinois...
East central Jersey County in southwestern Illinois...
* Until 800 PM CDT.
* At 708 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Brighton, moving northeast at 35 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...
Shipman around 715 PM CDT.
Bunker Hill around 720 PM CDT.
Other locations in the path of this tornadic thunderstorm include
Gillespie, Wilsonville, Mount Clare, East Gillespie, Benld and
Eagarville.
This includes Interstate 55 in Illinois between exits 37 and 44.
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 3884 9006 3906 9021 3931 8970 3900 8970
3900 8969 3899 8969
TIME...MOT...LOC 0008Z 245DEG 32KT 3904 9014
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
MRB4 follow-up statements
916
WWUS53 KLSX 160019 RRA
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
719 PM CDT Sat Apr 15 2023
ILC083-160029-
/O.CAN.KLSX.TO.W.0017.000000T0000Z-230416T0100Z/
Jersey IL-
719 PM CDT Sat Apr 15 2023
...THE TORNADO WARNING FOR EAST CENTRAL JERSEY COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for south central
and southwestern Illinois.
LAT...LON 3886 9000 3900 9015 3909 9014 3931 8970
3900 8970 3900 8969 3899 8969
TIME...MOT...LOC 0019Z 245DEG 32KT 3908 9002
$$
ILC117-119-160100-
/O.CON.KLSX.TO.W.0017.000000T0000Z-230416T0100Z/
Madison IL-Macoupin IL-
719 PM CDT Sat Apr 15 2023
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR NORTH
CENTRAL MADISON AND SOUTHERN MACOUPIN COUNTIES IN SOUTHWESTERN
ILLINOIS...
At 719 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Shipman, moving northeast at 35 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...
Bunker Hill around 725 PM CDT.
Other locations in the path of this tornadic thunderstorm include
Gillespie, Wilsonville, Mount Clare, East Gillespie, Benld and
Eagarville.
This includes Interstate 55 in Illinois between exits 37 and 44.
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 3886 9000 3900 9015 3909 9014 3931 8970
3900 8970 3900 8969 3899 8969
TIME...MOT...LOC 0019Z 245DEG 32KT 3908 9002
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
MRB800
WWUS53 KLSX 160027
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
727 PM CDT Sat Apr 15 2023
ILC117-119-160100-
/O.CON.KLSX.TO.W.0017.000000T0000Z-230416T0100Z/
Madison IL-Macoupin IL-
727 PM CDT Sat Apr 15 2023
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR NORTH
CENTRAL MADISON AND SOUTHEASTERN MACOUPIN COUNTIES IN SOUTHWESTERN
ILLINOIS...
At 727 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Wilsonville, moving northeast at 35 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Gillespie, Benld, Mount Clare, East Gillespie, and Eagarville
around 735 PM CDT.
This includes Interstate 55 in Illinois between exits 37 and 44.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3891 8989 3914 9005 3931 8970 3900 8970
3900 8969 3899 8969
TIME...MOT...LOC 0027Z 245DEG 32KT 3911 8993
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
MRB395
WWUS53 KLSX 160041
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
741 PM CDT Sat Apr 15 2023
ILC117-119-160100-
/O.CON.KLSX.TO.W.0017.000000T0000Z-230416T0100Z/
Madison IL-Macoupin IL-
741 PM CDT Sat Apr 15 2023
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR
NORTHEASTERN MADISON AND SOUTHEASTERN MACOUPIN COUNTIES IN
SOUTHWESTERN ILLINOIS...
At 741 PM CDT, a severe thunderstorm capable of producing a tornado
was located over East Gillespie, moving northeast at 35 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 tornadic thunderstorm will remain over mainly rural areas of
northeastern Madison and southeastern Macoupin Counties in
southwestern Illinois, including the following locations...
Williamson, Hornsby, White City , and Dorchester.
This includes Interstate 55 in Illinois between exits 37 and 44.
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 3895 8980 3919 8994 3931 8970 3900 8970
3900 8969 3899 8969
TIME...MOT...LOC 0041Z 245DEG 32KT 3916 8978
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
MRB215
WWUS53 KLSX 160054
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
754 PM CDT Sat Apr 15 2023
ILC117-119-160104-
/O.EXP.KLSX.TO.W.0017.000000T0000Z-230416T0100Z/
Madison IL-Macoupin IL-
754 PM CDT Sat Apr 15 2023
...THE TORNADO WARNING FOR NORTHEASTERN MADISON AND SOUTHEASTERN
MACOUPIN COUNTIES IN SOUTHWESTERN ILLINOIS WILL EXPIRE AT 800 PM
CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 1000 PM CDT for south central
and southwestern Illinois.
LAT...LON 3895 8980 3919 8994 3931 8970 3900 8970
3900 8969 3899 8969
TIME...MOT...LOC 0054Z 245DEG 32KT 3921 8965
$$
MRBThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 7:05 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 40 min |
| Apr 15, 7:09 PM CDT | Tornado Warning | LSX | Clinton, Randolph, Saint Clair, Washington | 51 min |
| Apr 15, 7:13 PM CDT | Tornado Warning | LSX | Bond, Madison, Montgomery | 47 min |
| Apr 15, 7:34 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 41 min |
| Apr 15, 7:47 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Marion, Washington | 43 min |
| Apr 15, 7:54 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette, Montgomery | 51 min |
Nearby
Tornado Warnings in Illinois, 2023Every tornado warning in 2023Tornadoes 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.