Alert archive / Illinois / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 120, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Oct 24, 2021, 7:04 PM CDT for 7 counties in Illinois. It was in force for 41 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
- Oct 24, 2021, 7:04 PM CDT (00:04 UTC)
- Expired
- Oct 24, 2021, 7:45 PM CDT
- In force
- 41 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties DeWitt County, IL, Logan County, IL, Macon County, IL, McLean County, IL, Menard County, IL, Sangamon County, IL, Tazewell County, IL
The radar
The Lincoln radar (KILX), 2 km from the middle of the area, began a volume at 00:09 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 |
|---|---|---|---|
| Oct 24, 7:08 PM CDT | TSTM WND GST 68 | 3 Ese Williamsville, IL | HOME WEATHER STATION MEASURED 68 MPH WIND GUST. A DOZEN 6-8 INCH DIAMETER BRANCHES WERE BLOWN DOWN. PANELS LOOSENED ON BARN ROOF. BEE HIVES TOPPLED. DELAYED REPORT. |
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 |
|---|---|---|---|
| Oct 24, 5:44 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.1 hours before the alert went out and 64 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
- 3 J/kg
- Mixed-layer CIN
- -286 J/kg
- Mixed-layer LCL
- 585 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 371 m²/s²
- 0-3 km storm-relative helicity
- 467 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.1
The text
As transmitted.
743
WUUS53 KILX 250004
SVRILX
ILC039-107-113-115-129-167-179-250045-
/O.NEW.KILX.SV.W.0120.211025T0004Z-211025T0045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
704 PM CDT Sun Oct 24 2021
The National Weather Service in Lincoln has issued a
* Severe Thunderstorm Warning for...
Eastern Menard County in central Illinois...
Logan County in central Illinois...
Northeastern Sangamon County in central Illinois...
Western De Witt County in central Illinois...
Southeastern Tazewell County in central Illinois...
Southwestern McLean County in central Illinois...
Northwestern Macon County in central Illinois...
* Until 745 PM CDT.
* At 704 PM CDT, severe thunderstorms were located along a line
extending from near Delavan to near Sherman, moving northeast at 45
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Severe thunderstorms will be near...
Emden around 710 PM CDT.
Armington around 715 PM CDT.
Other locations in the path of these severe thunderstorms include
Mount Pulaski, Latham, Chestnut, Bloomington, Beason and Kenney.
This includes the following highways...
Interstate 155 between mile markers 0 and 13.
Interstate 55 between mile markers 106 and 155.
Interstate 72 between mile markers 105 and 117.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 100 AM CDT for central
Illinois.
A Tornado Watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted, act quickly and move to a
place of safety inside a sturdy structure such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4046 8903 3990 8901 3980 8958 4009 8958
4009 8960 4033 8960
TIME...MOT...LOC 0004Z 241DEG 39KT 4034 8950 3990 8955
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
NMB2 follow-up statements
528
WWUS53 KILX 250021
SVSILX
Severe Weather Statement
National Weather Service Lincoln IL
721 PM CDT Sun Oct 24 2021
ILC039-107-113-115-129-167-179-250045-
/O.CON.KILX.SV.W.0120.000000T0000Z-211025T0045Z/
Menard-Logan-Sangamon-De Witt-Tazewell-McLean-Macon-
721 PM CDT Sun Oct 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR EASTERN MENARD...LOGAN...NORTHEASTERN SANGAMON...WESTERN DE
WITT...SOUTHEASTERN TAZEWELL...SOUTHWESTERN MCLEAN AND NORTHWESTERN
MACON COUNTIES...
At 720 PM CDT, severe thunderstorms were located along a line
extending from near McLean to near Cornland, moving east at 50 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Atlanta, McLean, Bloomington, Beason and Kenney.
This includes the following highways...
Interstate 155 between mile markers 0 and 13.
Interstate 55 between mile markers 106 and 155.
Interstate 72 between mile markers 105 and 117.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 100 AM CDT for central
Illinois.
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4046 8903 3990 8901 3980 8958 4009 8958
4009 8960 4033 8960
TIME...MOT...LOC 0020Z 249DEG 41KT 4036 8922 3998 8935
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
NMB642
WWUS53 KILX 250043
SVSILX
Severe Weather Statement
National Weather Service Lincoln IL
743 PM CDT Sun Oct 24 2021
ILC039-107-113-115-129-167-179-250053-
/O.EXP.KILX.SV.W.0120.000000T0000Z-211025T0045Z/
Menard-Logan-Sangamon-De Witt-Tazewell-McLean-Macon-
743 PM CDT Sun Oct 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MENARD...LOGAN...
NORTHEASTERN SANGAMON...WESTERN DE WITT...SOUTHEASTERN TAZEWELL...
SOUTHWESTERN MCLEAN AND NORTHWESTERN MACON COUNTIES WILL EXPIRE AT
745 PM CDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However small
hail, gusty winds and heavy rain are still possible with these
thunderstorms.
A Tornado Watch remains in effect until 100 AM CDT for central
Illinois.
LAT...LON 4046 8903 3990 8901 3980 8958 4009 8958
4009 8960 4033 8960
TIME...MOT...LOC 0043Z 241DEG 39KT 4047 8895 4009 8908
$$
NMBThe office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 24, 7:08 PM CDT | Flash Flood Warning | ILX | McLean, Tazewell, Woodford | 3 hr |
| Oct 24, 7:38 PM CDT | Special Weather Statement | ILX | Vermilion | 37 min |
| Oct 24, 7:48 PM CDT | Flash Flood Warning | ILX | McLean, Tazewell | 3 hr |
| Oct 24, 7:58 PM CDT | Areal Flood Warning | ILX | Fulton, Schuyler | 9 hr |
| Oct 24, 8:04 PM CDT | Special Weather Statement | ILX | Champaign, Vermilion | 41 min |
| Oct 24, 8:06 PM CDT | Special Weather Statement | ILX | DeWitt, Piatt | 39 min |
| Oct 24, 8:09 PM CDT | Special Weather Statement | ILX | Fulton | 36 min |
| Oct 24, 8:32 PM CDT | River Flood Warning | ILX | Fulton, Knox | 71 hr |
| Oct 24, 8:32 PM CDT | River Flood Warning | ILX | Fulton | 35 hr |
| Oct 24, 8:37 PM CDT | River Flood Warning | ILX | McLean, Tazewell, Woodford | 14 hr |
| Oct 24, 9:25 PM CDT | Special Weather Statement | ILX | Champaign, Vermilion | 65 min |
| Oct 24, 9:51 PM CDT | Special Weather Statement | ILX | Christian | 24 min |
| Oct 24, 9:57 PM CDT | Tornado Warning | ILX | Christian, Macon, Shelby | 21 min |
| Oct 24, 10:57 PM CDT | Severe Thunderstorm Warning | ILX | Clay, Effingham | 33 min |
| Oct 25, 3:18 AM CDT | Wind Advisory | ILX | Champaign, DeWitt, McLean, Piatt, Vermilion | 10 hr |
| Oct 25, 11:48 AM CDT | River Flood Warning | ILX | Marshall, Putnam | 47 hr |
| Oct 25, 11:50 AM CDT | River Flood Warning | ILX | Peoria, Tazewell, Woodford | 12 days |
| Oct 25, 11:52 AM CDT | River Flood Warning | ILX | Cass, Fulton, Mason | 21 days |
| Oct 25, 11:54 AM CDT | River Flood Warning | ILX | Brown, Cass, Morgan, Schuyler | 22 days |
Nearby
Severe Thunderstorm Warnings in Illinois, 2021Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.