Alert archive / Illinois / Tornado Warnings in 2021
Tornado Warning 3, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Mar 23, 2021, 7:35 PM CDT for Calhoun County, Pike County, Illinois; Pike County, Missouri. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Mar 23, 2021, 7:35 PM CDT (00:35 UTC)
- Expired
- Mar 23, 2021, 8:00 PM CDT
- In force
- 25 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Calhoun County, IL, Pike County, IL, Pike County, MO
The radar
The St Louis radar (KLSX), 77 km from the middle of the area, began a volume at 00:39 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.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.6 hours before the alert went out and 208 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
- 281 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 642 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 196 m²/s²
- 0-3 km storm-relative helicity
- 241 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.4
The text
As transmitted.
722
WFUS53 KLSX 240035
TORLSX
ILC013-149-MOC163-240100-
/O.NEW.KLSX.TO.W.0003.210324T0035Z-210324T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
735 PM CDT Tue Mar 23 2021
The National Weather Service in St Louis has issued a
* Tornado Warning for...
North central Calhoun County in southwestern Illinois...
Southeastern Pike County in west central Illinois...
East central Pike County in northeastern Missouri...
* Until 800 PM CDT.
* At 735 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Clarksville, 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...
Belleview around 745 PM CDT.
Pleasant Hill around 750 PM CDT.
Other locations impacted by this tornadic thunderstorm include Nebo,
Independence and Pearl.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This Tornado Warning replaces the Severe Thunderstorm Warning issued
for the same area.
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 3928 9087 3932 9093 3956 9080 3948 9061
TIME...MOT...LOC 0035Z 217DEG 29KT 3933 9087
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
TES2 follow-up statements
670
WWUS53 KLSX 240042
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
742 PM CDT Tue Mar 23 2021
MOC163-240052-
/O.CAN.KLSX.TO.W.0003.000000T0000Z-210324T0100Z/
Pike MO-
742 PM CDT Tue Mar 23 2021
...THE TORNADO WARNING FOR EAST CENTRAL PIKE COUNTY IN NORTHEASTERN
MISSOURI IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
LAT...LON 3933 9082 3937 9088 3956 9080 3948 9061
TIME...MOT...LOC 0042Z 217DEG 29KT 3938 9082
$$
ILC013-149-240100-
/O.CON.KLSX.TO.W.0003.000000T0000Z-210324T0100Z/
Calhoun IL-Pike IL-
742 PM CDT Tue Mar 23 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR NORTH
CENTRAL CALHOUN COUNTY IN SOUTHWESTERN ILLINOIS AND SOUTHEASTERN PIKE
COUNTIES IN WEST CENTRAL ILLINOIS...
At 742 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Belleview, 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
north central Calhoun County in southwestern Illinois and
southeastern Pike Counties in west central Illinois, including the
following locations... Nebo, Independence and Pearl.
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.
If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.
&&
LAT...LON 3933 9082 3937 9088 3956 9080 3948 9061
TIME...MOT...LOC 0042Z 217DEG 29KT 3938 9082
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
TES428
WWUS53 KLSX 240058
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
758 PM CDT Tue Mar 23 2021
ILC013-149-240108-
/O.EXP.KLSX.TO.W.0003.000000T0000Z-210324T0100Z/
Calhoun IL-Pike IL-
758 PM CDT Tue Mar 23 2021
...THE TORNADO WARNING FOR NORTH CENTRAL CALHOUN COUNTY IN
SOUTHWESTERN ILLINOIS AND SOUTHEASTERN PIKE COUNTIES IN WEST CENTRAL
ILLINOIS WILL EXPIRE AT 800 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with this thunderstorm.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
St Louis.
LAT...LON 3933 9082 3937 9088 3956 9080 3948 9061
TIME...MOT...LOC 0058Z 217DEG 29KT 3947 9073
$$
TESThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 23, 7:04 PM CDT | Tornado Warning | LSX | Pike | 41 min |
| Mar 23, 7:26 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Pike | 34 min |
| Mar 23, 11:02 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 43 min |
Nearby
Tornado Warnings in Illinois, 2021Tornado Warnings in Missouri, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.