Alert archive / Illinois / Tornado Warnings in 2021
Tornado Warning 50, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Dec 10, 2021, 7:36 PM CST for Pike County, Illinois. It was in force for 21 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
- Dec 10, 2021, 7:36 PM CST (01:36 UTC)
- Expired
- Dec 10, 2021, 7:57 PM CST
- In force
- 21 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Pike County, IL
The radar
The St Louis radar (KLSX), 106 km from the middle of the area, began a volume at 01:35 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Dec 10, 5:17 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 1.6 hours before the alert went out and 185 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
- 119 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 662 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 341 m²/s²
- 0-3 km storm-relative helicity
- 357 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
225
WFUS53 KLSX 110136
TORLSX
ILC149-110215-
/O.NEW.KLSX.TO.W.0050.211211T0136Z-211211T0215Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
736 PM CST Fri Dec 10 2021
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Southeastern Pike County in west central Illinois...
* Until 815 PM CST.
* At 736 PM CST, a severe thunderstorm capable of producing a tornado
was located near Atlas, moving northeast at 45 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...
Pittsfield around 750 PM CST.
Other locations in the path of this tornadic thunderstorm include
Griggsville and Naples.
This includes Interstate 72 near exit 35.
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.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3979 9060 3973 9062 3972 9064 3969 9065
3964 9061 3962 9061 3956 9058 3953 9058
3941 9094 3954 9106 3982 9058
TIME...MOT...LOC 0136Z 239DEG 37KT 3951 9091
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Britt1 follow-up statement
875
WWUS53 KLSX 110157
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
757 PM CST Fri Dec 10 2021
ILC149-110207-
/O.CAN.KLSX.TO.W.0050.000000T0000Z-211211T0215Z/
Pike IL-
757 PM CST Fri Dec 10 2021
...THE TORNADO WARNING FOR SOUTHEASTERN PIKE COUNTY IN WEST CENTRAL
ILLINOIS IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.
A Tornado Watch remains in effect until 1100 PM CST for west central
Illinois.
LAT...LON 3979 9060 3973 9062 3972 9064 3969 9065
3964 9061 3962 9061 3956 9058 3953 9058
3941 9094 3954 9106 3982 9058
TIME...MOT...LOC 0155Z 239DEG 37KT 3962 9066
$$
BrittThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 6:42 PM CST | Tornado Warning | LSX | Pike | 48 min |
| Dec 10, 7:11 PM CST | Tornado Warning | LSX | Pike | 49 min |
| Dec 10, 7:16 PM CST | Tornado Warning | LSX | Pike | 14 min |
| Dec 10, 7:30 PM CST | Tornado Warning | LSX | Calhoun, Greene, Jersey | 45 min |
| Dec 10, 7:35 PM CST | Tornado Warning | LSX | Calhoun, Jersey | 40 min |
| Dec 10, 8:06 PM CST | Tornado Warning | LSX | Jersey, Macoupin, Madison | 39 min |
| Dec 10, 8:33 PM CST | Tornado Warning | LSX | Bond, Madison | 42 min |
| Dec 10, 8:37 PM CST | Tornado Warning | LSX | Macoupin, Madison | 17 min |
| Dec 10, 8:44 PM CST | Tornado Warning | LSX | Fayette, Macoupin, Madison, Montgomery | 46 min |
| Dec 10, 8:56 PM CST | Tornado Warning | LSX | Bond, Fayette, Montgomery | 34 min |
| Dec 10, 9:07 PM CST | Severe Thunderstorm Warning | LSX | Calhoun | 38 min |
| Dec 10, 9:39 PM CST | Tornado Warning | LSX | Macoupin, Madison | 51 min |
| Dec 10, 10:05 PM CST | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 25 min |
| Dec 10, 10:18 PM CST | Severe Thunderstorm Warning | LSX | Bond, Fayette, Macoupin, Madison, Montgomery | 57 min |
| Dec 10, 10:19 PM CST | Severe Thunderstorm Warning | LSX | Monroe, Randolph, Saint Clair | 41 min |
| Dec 10, 10:26 PM CST | Tornado Warning | LSX | Bond, Fayette, Montgomery | 49 min |
| Dec 10, 10:51 PM CST | Severe Thunderstorm Warning | LSX | Clinton, Saint Clair, Washington | 39 min |
| Dec 10, 11:02 PM CST | Tornado Warning | LSX | Fayette | 29 min |
| Dec 10, 11:10 PM CST | Tornado Warning | LSX | Clinton, Marion, Washington | 50 min |
Nearby
Tornado Warnings in Illinois, 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.