Alert archive / Illinois / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 89, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Aug 12, 2021, 3:08 PM CDT for 4 counties in Illinois. It was in force for 52 min. 5 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
- Aug 12, 2021, 3:08 PM CDT (20:08 UTC)
- Expired
- Aug 12, 2021, 4:00 PM CDT
- In force
- 52 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Christian County, IL, Macon County, IL, Moultrie County, IL, Shelby County, IL
The radar
The Lincoln radar (KILX), 87 km from the middle of the area, began a volume at 20:10 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 |
|---|---|---|---|
| Aug 12, 3:10 PM CDT | TSTM WND DMG | 1 E Taylorville, IL | LARGE LIMBS UP TO 3 IN DOWN SOME OF WHICH THAT HAVE FALLEN ON HOUSES AND VEHICLES. TIME ESTIMATED FROM RADAR. |
| Aug 12, 3:10 PM CDT | TSTM WND GST 58 | Taylorville, IL | PERSONAL WEATHER STATION READ 58 MPH BEFORE EQUIPMENT OUTAGE |
| Aug 12, 3:20 PM CDT | TSTM WND GST 70 | Taylorville, IL | TRAINED SPOTTER ESTIMATED 70-75 MPH WINDS. |
| Aug 12, 3:38 PM CDT | TSTM WND DMG | Tower Hill, IL | FIRE DEPARTMENT DAMAGED, METAL ROOF BLOWN OFF A CHURCH, AND A TREE DOWN ON A CAR. |
| Aug 12, 3:50 PM CDT | TSTM WND DMG | Shelbyville, IL | POWER POLE KNOCKED DOWN. TIME ESTIMATED FROM RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.1 hours before the alert went out and 94 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
- 1191 J/kg
- Mixed-layer CIN
- -177 J/kg
- Mixed-layer LCL
- 1149 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 140 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.1
The text
As transmitted.
608
WUUS53 KILX 122008
SVRILX
ILC021-115-139-173-122100-
/O.NEW.KILX.SV.W.0089.210812T2008Z-210812T2100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
308 PM CDT Thu Aug 12 2021
The National Weather Service in Lincoln has issued a
* Severe Thunderstorm Warning for...
Southeastern Christian County in central Illinois...
Southwestern Moultrie County in central Illinois...
Western Shelby County in central Illinois...
South central Macon County in central Illinois...
* Until 400 PM CDT.
* At 307 PM CDT, a severe thunderstorm was located near Taylorville,
moving southeast at 45 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Pana and Tower Hill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
&&
LAT...LON 3922 8914 3935 8914 3935 8930 3942 8938
3976 8908 3960 8864 3922 8894
TIME...MOT...LOC 2007Z 309DEG 37KT 3954 8932
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SB4 follow-up statements
687
WWUS53 KILX 122013
SVSILX
Severe Weather Statement
National Weather Service Lincoln IL
313 PM CDT Thu Aug 12 2021
ILC021-115-139-173-122100-
/O.CON.KILX.SV.W.0089.000000T0000Z-210812T2100Z/
Christian-Moultrie-Shelby-Macon-
313 PM CDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR SOUTHEASTERN CHRISTIAN...SOUTHWESTERN MOULTRIE...WESTERN SHELBY
AND SOUTH CENTRAL MACON COUNTIES...
At 313 PM CDT, a severe thunderstorm was located over Taylorville,
moving southeast at 45 mph.
HAZARD...70 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Taylorville, Shelbyville, Pana, Moweaqua, Bethany, Assumption, Blue
Mound, Macon, Stonington, Findlay, Tower Hill, Westervelt, Herrick,
Rosamond, Owaneco, Oconee, Kirksville and Vanderville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3922 8914 3935 8914 3935 8930 3942 8938
3976 8908 3960 8864 3922 8894
TIME...MOT...LOC 2013Z 309DEG 37KT 3950 8926
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
SB532
WWUS53 KILX 122022
SVSILX
Severe Weather Statement
National Weather Service Lincoln IL
322 PM CDT Thu Aug 12 2021
ILC021-115-139-173-122100-
/O.CON.KILX.SV.W.0089.000000T0000Z-210812T2100Z/
Christian-Moultrie-Shelby-Macon-
322 PM CDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR SOUTHEASTERN CHRISTIAN...SOUTHWESTERN MOULTRIE...WESTERN SHELBY
AND SOUTH CENTRAL MACON COUNTIES...
At 321 PM CDT, a severe thunderstorm was located near Pana, or 7
miles southeast of Taylorville, moving southeast at 45 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Trained weather spotters report 70 to 75 mph gusts.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Taylorville, Shelbyville, Pana, Moweaqua, Bethany, Assumption, Blue
Mound, Macon, Stonington, Findlay, Tower Hill, Westervelt, Herrick,
Rosamond, Owaneco, Oconee, Kirksville and Vanderville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3922 8914 3935 8914 3935 8930 3942 8938
3976 8908 3960 8864 3922 8894
TIME...MOT...LOC 2021Z 309DEG 37KT 3944 8917
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
SB656
WWUS53 KILX 122046
SVSILX
Severe Weather Statement
National Weather Service Lincoln IL
346 PM CDT Thu Aug 12 2021
ILC115-122055-
/O.CAN.KILX.SV.W.0089.000000T0000Z-210812T2100Z/
Macon-
346 PM CDT Thu Aug 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL MACON COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3922 8914 3941 8914 3965 8879 3960 8864
3922 8894
TIME...MOT...LOC 2045Z 309DEG 37KT 3928 8891
$$
ILC021-139-173-122100-
/O.CON.KILX.SV.W.0089.000000T0000Z-210812T2100Z/
Christian-Moultrie-Shelby-
346 PM CDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR SOUTHEASTERN CHRISTIAN...SOUTHWESTERN MOULTRIE AND WESTERN SHELBY
COUNTIES...
At 345 PM CDT, a severe thunderstorm was located near Cowden, or 10
miles southwest of Shelbyville, moving southeast at 45 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Trained weather spotters.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Shelbyville, Pana, Findlay, Tower Hill, Westervelt, Herrick, Oconee
and Kirksville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3922 8914 3941 8914 3965 8879 3960 8864
3922 8894
TIME...MOT...LOC 2045Z 309DEG 37KT 3928 8891
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
37358
WWUS53 KILX 122103
SVSILX
Severe Weather Statement
National Weather Service Lincoln IL
403 PM CDT Thu Aug 12 2021
ILC021-139-173-122113-
/O.EXP.KILX.SV.W.0089.000000T0000Z-210812T2100Z/
Christian-Moultrie-Shelby-
403 PM CDT Thu Aug 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHRISTIAN...
SOUTHWESTERN MOULTRIE AND WESTERN SHELBY COUNTIES HAS EXPIRED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been allowed to expire. However gusty
winds are still possible with this thunderstorm.
LAT...LON 3922 8914 3941 8914 3965 8879 3960 8864
3922 8894
TIME...MOT...LOC 2103Z 309DEG 37KT 3916 8873
$$
37The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 2:45 AM CDT | Heat Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 22 more | 15 hr |
| Aug 12, 2:59 AM CDT | Special Weather Statement | ILX | McLean | 46 min |
| Aug 12, 3:14 AM CDT | Severe Thunderstorm Warning | ILX | McLean | 31 min |
| Aug 12, 3:51 AM CDT | Special Weather Statement | ILX | McLean | 24 min |
| Aug 12, 4:02 AM CDT | Special Weather Statement | ILX | Tazewell | 43 min |
| Aug 12, 4:26 AM CDT | Severe Thunderstorm Warning | ILX | Logan, McLean, Tazewell | 21 min |
| Aug 12, 8:12 AM CDT | Special Weather Statement | ILX | McLean | 48 min |
| Aug 12, 9:13 AM CDT | Severe Thunderstorm Warning | ILX | Champaign, McLean | 47 min |
| Aug 12, 9:24 AM CDT | Areal Flood Advisory | ILX | DeWitt, McLean, Piatt | 3 hr |
| Aug 12, 10:04 AM CDT | Flash Flood Warning | ILX | Champaign, McLean | 5 hr |
| Aug 12, 10:52 AM CDT | Severe Thunderstorm Warning | ILX | Champaign | 38 min |
| Aug 12, 11:17 AM CDT | Flash Flood Warning | ILX | Champaign, DeWitt, Piatt | 3 hr |
| Aug 12, 11:26 AM CDT | Special Weather Statement | ILX | Fulton, Tazewell | 49 min |
| Aug 12, 12:16 PM CDT | Special Weather Statement | ILX | Logan | 44 min |
| Aug 12, 1:05 PM CDT | Special Weather Statement | ILX | Vermilion | 40 min |
| Aug 12, 1:45 PM CDT | Special Weather Statement | ILX | Champaign, Piatt | 45 min |
| Aug 12, 2:16 PM CDT | Flash Flood Warning | ILX | Champaign, DeWitt, Piatt | 119 min |
| Aug 12, 2:23 PM CDT | Special Weather Statement | ILX | Champaign | 52 min |
| Aug 12, 2:35 PM CDT | Special Weather Statement | ILX | Christian, Morgan, Sangamon | 25 min |
| Aug 12, 2:43 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Sangamon | 47 min |
| Aug 12, 2:53 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 37 min |
| Aug 12, 3:01 PM CDT | Areal Flood Warning | ILX | Champaign, McLean | 6 hr |
| Aug 12, 3:43 PM CDT | Severe Thunderstorm Warning | ILX | Coles, Cumberland, Effingham, Moultrie, Shelby | 47 min |
| Aug 12, 4:15 PM CDT | Flash Flood Warning | ILX | Douglas, Moultrie, Shelby | 3 hr |
| Aug 12, 4:29 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Crawford, Cumberland, Effingham, Jasper, Shelby | 46 min |
| Aug 12, 5:09 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Crawford, Jasper | 36 min |
| Aug 12, 5:28 PM CDT | Special Weather Statement | ILX | Scott | 32 min |
| Aug 12, 5:30 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan, Scott | 18 min |
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.