Alert archive / Illinois / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 95, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Aug 23, 2021, 1:26 PM CDT for Cass County, Morgan County, Schuyler County, Illinois. It was in force for 34 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
- Aug 23, 2021, 1:26 PM CDT (18:26 UTC)
- Expired
- Aug 23, 2021, 2:00 PM CDT
- In force
- 34 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Cass County, IL, Morgan County, IL, Schuyler County, IL
The radar
The Lincoln radar (KILX), 101 km from the middle of the area, began a volume at 18:17 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 23, 1:30 PM CDT | TSTM WND DMG | 4 Ssw Beardstown, IL | 20 POWER POLES BROKEN ALONG US-67 SOUTH OF BEARDSTOWN. US-67 IS CURRENTLY CLOSED. REPORT RELAYED BY BROADCAST MEDIA. TIME ESTIMATED BY 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, 6.4 hours before the alert went out and 163 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1261 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
418
WUUS53 KILX 231826
SVRILX
ILC017-137-169-231900-
/O.NEW.KILX.SV.W.0095.210823T1826Z-210823T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
126 PM CDT Mon Aug 23 2021
The National Weather Service in Lincoln has issued a
* Severe Thunderstorm Warning for...
Western Cass County in west central Illinois...
South central Schuyler County in west central Illinois...
North central Morgan County in west central Illinois...
* Until 200 PM CDT.
* At 126 PM CDT, a severe thunderstorm was located near Beardstown,
moving southeast at 25 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.
* This severe thunderstorm will be near...
Beardstown around 135 PM CDT.
Bluff Springs around 145 PM CDT.
Other locations in the path of this severe thunderstorm include
Arenzville and Virginia.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4001 9060 4012 9045 4000 9016 3981 9039
3991 9055 3997 9051 3999 9052 3998 9055
3998 9059 3999 9061
TIME...MOT...LOC 1826Z 296DEG 21KT 4002 9050
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SB2 follow-up statements
340
WWUS53 KILX 231849
SVSILX
Severe Weather Statement
National Weather Service Lincoln IL
149 PM CDT Mon Aug 23 2021
ILC169-231859-
/O.CAN.KILX.SV.W.0095.000000T0000Z-210823T1900Z/
Schuyler-
149 PM CDT Mon Aug 23 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL SCHUYLER COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3997 9051 3999 9051 4001 9046 4002 9043
4006 9043 4008 9039 4009 9038 4000 9016
3981 9039 3991 9055
TIME...MOT...LOC 1849Z 296DEG 21KT 3996 9034
$$
ILC017-137-231900-
/O.CON.KILX.SV.W.0095.000000T0000Z-210823T1900Z/
Cass-Morgan-
149 PM CDT Mon Aug 23 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM CDT
FOR WESTERN CASS AND NORTH CENTRAL MORGAN COUNTIES...
At 149 PM CDT, a severe thunderstorm was located over Bluff Springs,
or near Beardstown, moving southeast at 25 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.
Locations impacted include...
Virginia.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3997 9051 3999 9051 4001 9046 4002 9043
4006 9043 4008 9039 4009 9038 4000 9016
3981 9039 3991 9055
TIME...MOT...LOC 1849Z 296DEG 21KT 3996 9034
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SB531
WWUS53 KILX 231905
SVSILX
Severe Weather Statement
National Weather Service Lincoln IL
205 PM CDT Mon Aug 23 2021
ILC017-137-231915-
/O.EXP.KILX.SV.W.0095.000000T0000Z-210823T1900Z/
Cass-Morgan-
205 PM CDT Mon Aug 23 2021
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN CASS AND NORTH CENTRAL
MORGAN COUNTIES HAS EXPIRED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been allowed to expire.
Remember, a Severe Thunderstorm Warning still remains in effect for
southeast Cass and northeast Morgan Counties.
LAT...LON 3997 9051 3999 9051 4001 9046 4002 9043
4006 9043 4008 9039 4009 9038 4000 9016
3981 9039 3991 9055
TIME...MOT...LOC 1905Z 296DEG 21KT 3992 9024
$$
SBThe office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 3:51 AM CDT | Dense Fog Advisory | ILX | Champaign, Christian, Clark, Clay, Coles, Crawford and 15 more | 4 hr |
| Aug 23, 12:49 PM CDT | Special Weather Statement | ILX | Schuyler | 26 min |
| Aug 23, 1:08 PM CDT | Severe Thunderstorm Warning | ILX | Schuyler | 37 min |
| Aug 23, 1:47 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan | 43 min |
| Aug 23, 2:29 PM CDT | Special Weather Statement | ILX | Sangamon | 46 min |
| Aug 23, 2:53 PM CDT | Heat Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 5 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.