Alert archive / Illinois / Tornado Warnings in 2026

Tornado Warning 5, NWS St. Louis, MO

March 15, 2026Lincoln County, Missouri; Calhoun County, Jersey County, Illinois

NWS St. Louis, MO issued this tornado warning at Mar 15, 2026, 3:59 PM CDT for Lincoln County, Missouri; Calhoun County, Jersey County, Illinois. It was in force for 33 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: Mar 15, 2026, 3:59 PM CDT (20:59 UTC)
Expired: Mar 15, 2026, 4:32 PM CDT
In force: 33 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Calhoun County, IL, Jersey County, IL, Lincoln County, MO

The radar

The St Louis radar (KLSX), 47 km from the middle of the area, began a volume at 21:00 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
Mar 15, 4:14 PM CDT	FUNNEL CLOUD	3 Ne Deer Plain, IL	Rotating funnel cloud moving toward Brussels Ferry on the Illinois River and Hwy 100.

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
Mar 15, 1:33 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.0 hours before the alert went out and 197 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1382 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 389 m²/s²
0-3 km storm-relative helicity: 410 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

663 
WFUS53 KLSX 152059
TORLSX
ILC013-083-MOC113-152145-
/O.NEW.KLSX.TO.W.0005.260315T2059Z-260315T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
359 PM CDT Sun Mar 15 2026

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Southeastern Calhoun County in southwestern Illinois...
  Jersey County in southwestern Illinois...
  East Central Lincoln County in east central Missouri...

* Until 445 PM CDT.

* At 359 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Winfield, or 11 miles north of St. Paul, moving
  east 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.

* Locations impacted include...
  Winfield, Foley, Beechville, Batchtown, Brussels, Meppen, Nutwood,
  Grafton, Fieldon, Otterville, McClusky, Jerseyville and Delhi.

This includes the following State Parks...
Pere Marquette State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built building
away from 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 3893 9074 3905 9079 3917 9041 3917 9031
      3921 9031 3922 9027 3901 9019 3900 9026
      3900 9027
TIME...MOT...LOC 2059Z 250DEG 30KT 3900 9071

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Kimble

3 follow-up statements

036 
WWUS53 KLSX 152109
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
409 PM CDT Sun Mar 15 2026

MOC113-152119-
/O.CAN.KLSX.TO.W.0005.000000T0000Z-260315T2145Z/
Lincoln MO-
409 PM CDT Sun Mar 15 2026

...TORNADO WARNING IS CANCELLED FOR EAST CENTRAL LINCOLN COUNTY...

The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

&&

LAT...LON 3896 9067 3897 9068 3900 9068 3907 9070
      3908 9069 3917 9041 3917 9031 3921 9031
      3922 9027 3901 9019 3900 9026 3900 9027
      3894 9067
TIME...MOT...LOC 2059Z 250DEG 30KT 3900 9070

$$


ILC013-083-152145-
/O.CON.KLSX.TO.W.0005.000000T0000Z-260315T2145Z/
Calhoun IL-Jersey IL-
409 PM CDT Sun Mar 15 2026

...TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR
SOUTHEASTERN CALHOUN AND JERSEY COUNTIES...

At 409 PM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles south of Hardin, or 13 miles southeast of
Elsberry, moving east 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.

Locations impacted include...
  Beechville, Batchtown, Brussels, Meppen, Nutwood, Grafton, Fieldon,
  Otterville, McClusky, Jerseyville and Delhi.

This includes the following State Parks...
Pere Marquette State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built building
away from 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 3896 9067 3897 9068 3900 9068 3907 9070
      3908 9069 3917 9041 3917 9031 3921 9031
      3922 9027 3901 9019 3900 9026 3900 9027
      3894 9067
TIME...MOT...LOC 2059Z 248DEG 29KT 3901 9070

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Kimble

114 
WWUS53 KLSX 152121
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
421 PM CDT Sun Mar 15 2026

ILC013-152131-
/O.CAN.KLSX.TO.W.0005.000000T0000Z-260315T2145Z/
Calhoun IL-
421 PM CDT Sun Mar 15 2026

...TORNADO WARNING IS CANCELLED FOR SOUTHEASTERN CALHOUN COUNTY...

The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. However, gusty winds are
still possible with this thunderstorm.

A Tornado Watch remains in effect until 800 PM CDT for a portion of
southwest Illinois.

&&

LAT...LON 3896 9053 3912 9057 3917 9041 3917 9031
      3921 9031 3922 9027 3901 9019 3900 9026
      3900 9027 3897 9047 3897 9049
TIME...MOT...LOC 2109Z 248DEG 29KT 3904 9061

$$


ILC083-152145-
/O.CON.KLSX.TO.W.0005.000000T0000Z-260315T2145Z/
Jersey IL-
421 PM CDT Sun Mar 15 2026

...TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR JERSEY
COUNTY...

At 421 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles north of Grafton, or 8 miles southwest of
Jerseyville, moving east 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.

Locations impacted include...
  Nutwood, Grafton, Fieldon, Otterville, Jerseyville, McClusky and
  Delhi.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built building
away from 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 3896 9053 3912 9057 3917 9041 3917 9031
      3921 9031 3922 9027 3901 9019 3900 9026
      3900 9027 3897 9047 3897 9049
TIME...MOT...LOC 2109Z 249DEG 30KT 3904 9060

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Kimble

419 
WWUS53 KLSX 152132
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
432 PM CDT Sun Mar 15 2026

ILC083-152142-
/O.CAN.KLSX.TO.W.0005.000000T0000Z-260315T2145Z/
Jersey IL-
432 PM CDT Sun Mar 15 2026

...TORNADO WARNING IS CANCELLED FOR JERSEY COUNTY...

The storm which prompted the warning is no longer appears capable of
producing a tornado. Therefore, the warning has been cancelled.
However, gusty winds are still possible with this thunderstorm.

A Severe Thunderstorm Warning still remains in effect.

&&

LAT...LON 3896 9053 3912 9057 3917 9041 3917 9031
      3921 9031 3922 9027 3901 9019 3900 9026
      3900 9027 3897 9047 3897 9049
TIME...MOT...LOC 2121Z 250DEG 30KT 3907 9047

$$

Kimble

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 15, 2:37 PM CDT	Winter Weather Advisory	LSX	Audrain, Boone, Callaway, Cole, Knox, Lewis and 6 more	16 hr
Mar 15, 3:11 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Warren	49 min
Mar 15, 3:40 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln	35 min
Mar 15, 3:44 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Saint Charles	46 min
Mar 15, 3:48 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Gasconade, Washington	42 min
Mar 15, 4:24 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Iron, Reynolds, Washington	57 min
Mar 15, 4:28 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Saint Louis, City of Saint Louis	47 min
Mar 15, 4:47 PM CDT	Tornado Warning	LSX	Saint Louis, City of Saint Louis	23 min
Mar 15, 5:01 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Saint Louis	44 min
Mar 15, 5:07 PM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve, Saint Francois	38 min
Mar 15, 5:13 PM CDT	Tornado Warning	LSX	Sainte Genevieve, Saint Francois	32 min
Mar 15, 5:27 PM CDT	Severe Thunderstorm Warning	LSX	Reynolds	15 min
Mar 15, 6:03 PM CDT	Severe Thunderstorm Warning	LSX	Madison	13 min
Mar 15, 3:56 PM CDT	Severe Thunderstorm Warning	LSX	Greene, Jersey	58 min
Mar 15, 5:05 PM CDT	Tornado Warning	LSX	Madison, Saint Clair	34 min
Mar 15, 5:09 PM CDT	Severe Thunderstorm Warning	LSX	Macoupin	36 min
Mar 15, 5:19 PM CDT	Tornado Warning	LSX	Monroe, Saint Clair	47 min
Mar 15, 5:28 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph, Saint Clair	47 min
Mar 15, 5:31 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Montgomery	44 min
Mar 15, 5:34 PM CDT	Tornado Warning	LSX	Monroe, Randolph, Saint Clair	34 min
Mar 15, 5:51 PM CDT	Severe Thunderstorm Warning	LSX	Clinton, Washington	54 min
Mar 15, 5:54 PM CDT	Tornado Warning	LSX	Clinton, Washington	37 min
Mar 15, 6:23 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	Marion	58 min

Nearby

Tornado Warnings in Illinois, 2026 Tornado Warnings in Missouri, 2026 Every tornado warning in 2026 Tornadoes in 2026

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.