Alert archive / Illinois / Tornado Warnings in 2023
Tornado Warning 18, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Apr 15, 2023, 7:09 PM CDT for 4 counties in Illinois. It was in force for 51 min. 4 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, 7:09 PM CDT (00:09 UTC)
- Expired
- Apr 15, 2023, 8:00 PM CDT
- In force
- 51 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Clinton County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL
The radar
The St Louis radar (KLSX), 102 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, 7:20 PM CDT | TSTM WND DMG | 2 Ssw Saint Libory, IL | REPORT FROM MPING: 3-INCH TREE LIMBS BROKEN; POWER POLES BROKEN. |
| Apr 15, 7:34 PM CDT | TSTM WND DMG | New Minden, IL | LARGE TREE BRANCH DOWN ONTO A POWER LINE. TIME ESTIMATED FROM RADAR. |
| Apr 15, 7:35 PM CDT | TSTM WND DMG | Trenton, IL | FACEBOOK VIDEO SHOWS STORM DAMAGE OCCURRING IN TRENTON. TREES DOWN, FENCES BLOWN OVER, TRAMPOLINE TOSSED. TIME ESTIMATED FROM RADAR. |
| Apr 15, 7:37 PM CDT | TSTM WND DMG | New Minden, IL | LARGE TREE BRANCH DOWN ON POWER LINES. |
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, 0.2 hours before the alert went out and 207 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.
702
WFUS53 KLSX 160009
TORLSX
ILC027-157-163-189-160100-
/O.NEW.KLSX.TO.W.0018.230416T0009Z-230416T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
709 PM CDT Sat Apr 15 2023
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Clinton County in south central Illinois...
Washington County in south central Illinois...
Northeastern Randolph County in southwestern Illinois...
Eastern St. Clair County in southwestern Illinois...
* Until 800 PM CDT.
* At 708 PM CDT, severe thunderstorms capable of producing a tornado
were located along a line extending from Shiloh to Marissa, moving
northeast at 50 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
Clinton, Washington, northeastern Randolph and eastern St. Clair
Counties, including the following locations... Bartelso, Huey,
Posen, New Minden, Eden, Oakdale, Cordes, Hoyleton, Covington , and
Richview.
This also includes Carlyle Lake Recreational Area.
This includes Interstate 64 in Illinois between exits 19 and 61.
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 3822 8959 3799 8960 3854 8993 3866 8979
3866 8960 3874 8959 3874 8914 3821 8915
TIME...MOT...LOC 0008Z 239DEG 45KT 3854 8990 3826 8975
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Maples5 follow-up statements
185
WWUS53 KLSX 160026
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
726 PM CDT Sat Apr 15 2023
ILC157-163-160036-
/O.CAN.KLSX.TO.W.0018.000000T0000Z-230416T0100Z/
Randolph IL-St. Clair IL-
726 PM CDT Sat Apr 15 2023
...THE TORNADO WARNING FOR NORTHEASTERN RANDOLPH AND EASTERN ST.
CLAIR COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for south central
and southwestern Illinois.
LAT...LON 3822 8958 3842 8969 3863 8971 3865 8971
3866 8959 3874 8959 3874 8914 3821 8915
TIME...MOT...LOC 0026Z 239DEG 45KT 3865 8966 3837 8951
$$
ILC027-189-160100-
/O.CON.KLSX.TO.W.0018.000000T0000Z-230416T0100Z/
Clinton IL-Washington IL-
726 PM CDT Sat Apr 15 2023
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR CLINTON
AND WASHINGTON COUNTIES...
At 726 PM CDT, severe thunderstorms capable of producing tornadoes
were located along a line extending from near Trenton to near
Okawville, moving northeast at 50 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 Clinton
and Washington Counties, including the following locations:
Bartelso...Huey...Posen...New Minden...Oakdale...Cordes...Hoyleton...
Covington...Richview and Stolletown.
This also includes Carlyle Lake Recreational Area.
This includes Interstate 64 in Illinois between exits 34 and 61.
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 3822 8958 3842 8969 3863 8971 3865 8971
3866 8959 3874 8959 3874 8914 3821 8915
TIME...MOT...LOC 0026Z 239DEG 45KT 3865 8966 3837 8951
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Maples551
WWUS53 KLSX 160037
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
737 PM CDT Sat Apr 15 2023
ILC027-189-160100-
/O.CON.KLSX.TO.W.0018.000000T0000Z-230416T0100Z/
Clinton IL-Washington IL-
737 PM CDT Sat Apr 15 2023
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR CLINTON
AND EASTERN WASHINGTON COUNTIES...
At 737 PM CDT, severe thunderstorms capable of producing tornadoes
were located along a line extending from St. Rose to near Nashville,
moving east at 50 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
These tornadic storms will remain over mainly rural areas of Clinton
and eastern Washington Counties, including the following locations:
Bartelso...Radom...Huey...Huegely...Hoffman...Posen...New Minden...
Hoyleton...Covington and Richview.
This also includes Carlyle Lake Recreational Area.
This includes Interstate 64 in Illinois between exits 50 and 61.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3822 8940 3849 8949 3866 8959 3874 8959
3874 8914 3821 8915
TIME...MOT...LOC 0037Z 270DEG 45KT 3871 8954 3843 8939
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
Maples290
WWUS53 KLSX 160041 CCA
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
741 PM CDT Sat Apr 15 2023
ILC027-189-160100-
/O.COR.KLSX.TO.W.0018.000000T0000Z-230416T0100Z/
Clinton IL-Washington IL-
741 PM CDT Sat Apr 15 2023
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR CLINTON
AND EASTERN WASHINGTON COUNTIES...
At 741 PM CDT, tornado producing storms were located along a line
extending from near Jamestown to near Nashville, moving east at 50
mph.
HAZARD...Damaging tornado and quarter size hail.
SOURCE...Emergency management confirmed tornado north of Nashville,
IL.
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 Clinton
and eastern Washington Counties, including the following locations:
Bartelso...Radom...Huey...Huegely...Hoffman...Posen...New Minden...
Hoyleton...Covington and Richview.
This also includes Carlyle Lake Recreational Area.
This includes Interstate 64 in Illinois between exits 50 and 61.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. 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 3822 8940 3849 8949 3866 8959 3874 8959
3874 8914 3821 8915
TIME...MOT...LOC 0037Z 270DEG 45KT 3871 8954 3843 8939
TORNADO...OBSERVED
MAX HAIL SIZE...1.00 IN
$$
Maples964
WWUS53 KLSX 160050
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
750 PM CDT Sat Apr 15 2023
ILC027-160059-
/O.CAN.KLSX.TO.W.0018.000000T0000Z-230416T0100Z/
Clinton IL-
750 PM CDT Sat Apr 15 2023
...THE TORNADO WARNING FOR CLINTON COUNTY IS CANCELLED...
The storms which prompted the warning have weakened. Therefore, the
warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for south central
Illinois.
LAT...LON 3822 8940 3847 8948 3850 8943 3849 8941
3850 8940 3849 8940 3850 8937 3852 8936
3850 8927 3851 8926 3850 8915 3821 8915
TIME...MOT...LOC 0049Z 270DEG 45KT 3871 8938 3843 8923
$$
ILC189-160100-
/O.CON.KLSX.TO.W.0018.000000T0000Z-230416T0100Z/
Washington IL-
750 PM CDT Sat Apr 15 2023
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR EASTERN
WASHINGTON COUNTY...
At 749 PM CDT, severe thunderstorms capable of producing tornadoes
were located along a line extending from near Beaver Creek to near
Irvington, moving east at 50 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.
These tornadic storms will remain over mainly rural areas of eastern
Washington County, including the following locations: Radom...
Huegely...Posen...Beaucoup...Du Bois...New Minden...Hoyleton...
Covington and Richview.
This includes Interstate 64 in Illinois between exits 50 and 61.
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 3822 8940 3847 8948 3850 8943 3849 8941
3850 8940 3849 8940 3850 8937 3852 8936
3850 8927 3851 8926 3850 8915 3821 8915
TIME...MOT...LOC 0049Z 270DEG 45KT 3871 8938 3843 8923
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
Maples200
WWUS53 KLSX 160058
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
758 PM CDT Sat Apr 15 2023
ILC189-160107-
/O.EXP.KLSX.TO.W.0018.000000T0000Z-230416T0100Z/
Washington IL-
758 PM CDT Sat Apr 15 2023
...THE TORNADO WARNING FOR EASTERN WASHINGTON COUNTY WILL EXPIRE AT
800 PM CDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 1000 PM CDT for south central
Illinois.
Remember, a Severe Thunderstorm Warning still remains in effect for
eastern section of Washington County in Illinois.
LAT...LON 3822 8940 3847 8948 3850 8943 3849 8941
3850 8940 3849 8940 3850 8937 3852 8936
3850 8927 3851 8926 3850 8915 3821 8915
TIME...MOT...LOC 0057Z 270DEG 45KT 3871 8926 3843 8911
$$
MaplesThe 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, 7:08 PM CDT | Tornado Warning | LSX | Jersey, Macoupin, Madison | 52 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.