Alert archive / Illinois / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 56, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Jun 25, 2021, 1:21 AM CDT for 5 counties in Illinois. It was in force for 42 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
- Jun 25, 2021, 1:21 AM CDT (06:21 UTC)
- Expired
- Jun 25, 2021, 2:03 AM CDT
- In force
- 42 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Cass County, IL, Mason County, IL, Menard County, IL, Morgan County, IL, Sangamon County, IL
The radar
The Lincoln radar (KILX), 75 km from the middle of the area, began a volume at 06:21 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 |
|---|---|---|---|
| Jun 24, 11:47 PM CDT | Tornado Watch | SPC | 4 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 6.4 hours before the alert went out and 135 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
- 263 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 875 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 245 m²/s²
- 0-3 km storm-relative helicity
- 444 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.5
The text
As transmitted.
530
WUUS53 KILX 250621
SVRILX
ILC017-125-129-137-167-250715-
/O.NEW.KILX.SV.W.0056.210625T0621Z-210625T0715Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
121 AM CDT Fri Jun 25 2021
The National Weather Service in Lincoln has issued a
* Severe Thunderstorm Warning for...
Western Menard County in central Illinois...
Western Sangamon County in central Illinois...
Eastern Cass County in west central Illinois...
Southwestern Mason County in central Illinois...
Morgan County in west central Illinois...
* Until 215 AM CDT.
* At 121 AM CDT, severe thunderstorms were located along a line
extending from near Meredosia to near Chapin to near Winchester to
Roodhouse, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near...
Woodson around 130 AM CDT.
Jacksonville and Murrayville around 135 AM CDT.
Literberry around 140 AM CDT.
Other locations in the path of these severe thunderstorms include
Virginia, Alexander, Franklin, Chandlerville, New Berlin, Ashland,
Waverly, Pleasant Plains, Loami, Tallula and Petersburg.
This includes Interstate 72 between mile markers 61 and 91.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 400 AM CDT for central and
west central Illinois.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4012 9034 4014 9021 4013 8983 3984 8977
3952 8977 3952 9030 3963 9030 3964 9031
4001 9025
TIME...MOT...LOC 0621Z 257DEG 37KT 3988 9048 3974 9044 3965 9036 3948
9039
HAIL...<.75IN
WIND...60MPH
$$
MJA2 follow-up statements
034
WWUS53 KILX 250645
SVSILX
Severe Weather Statement
National Weather Service Lincoln IL
145 AM CDT Fri Jun 25 2021
ILC017-125-129-250655-
/O.CAN.KILX.SV.W.0056.000000T0000Z-210625T0715Z/
Menard-Cass-Mason-
145 AM CDT Fri Jun 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN MENARD...EASTERN CASS
AND SOUTHWESTERN MASON COUNTIES IS CANCELLED...
The storms which prompted the warning have weakened. Therefore, the
warning has been cancelled.
A Tornado Watch remains in effect until 400 AM CDT for central and
west central Illinois.
LAT...LON 3988 8978 3952 8977 3952 9030 3963 9030
3964 9031 3978 9027
TIME...MOT...LOC 0645Z 270DEG 37KT 3993 9020 3979 9016 3970 9008 3953
9011
$$
ILC137-167-250715-
/O.CON.KILX.SV.W.0056.000000T0000Z-210625T0715Z/
Sangamon-Morgan-
145 AM CDT Fri Jun 25 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT
FOR WESTERN SANGAMON AND MORGAN COUNTIES...
At 145 AM CDT, severe thunderstorms were located along a line
extending from Virginia to near Literberry to near Alexander to 6
miles northeast of Athensville, moving east at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Alexander, Franklin, Waverly, New Berlin and Loami.
This includes Interstate 72 between mile markers 62 and 90.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 400 AM CDT for central and
west central Illinois.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3988 8978 3952 8977 3952 9030 3963 9030
3964 9031 3978 9027
TIME...MOT...LOC 0645Z 270DEG 37KT 3993 9020 3979 9016 3970 9008 3953
9011
HAIL...<.75IN
WIND...60MPH
$$
MJA386
WWUS53 KILX 250703
SVSILX
Severe Weather Statement
National Weather Service Lincoln IL
203 AM CDT Fri Jun 25 2021
ILC137-167-250713-
/O.CAN.KILX.SV.W.0056.000000T0000Z-210625T0715Z/
Sangamon-Morgan-
203 AM CDT Fri Jun 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN SANGAMON AND MORGAN
COUNTIES IS CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 400 AM CDT for central and
west central Illinois.
LAT...LON 3988 8978 3952 8977 3952 9030 3963 9030
3964 9031 3978 9027
TIME...MOT...LOC 0702Z 257DEG 37KT 3993 9020 3979 9016 3970 9008 3953
9011
$$
MJAThe office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 7:56 PM CDT | Special Weather Statement | ILX | Sangamon | 49 min |
| Jun 24, 8:09 PM CDT | Severe Thunderstorm Warning | ILX | Morgan, Sangamon | 51 min |
| Jun 25, 12:33 AM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan, Schuyler, Scott | 72 min |
| Jun 25, 1:42 AM CDT | Flash Flood Warning | ILX | Knox, Marshall, Stark | 6 hr |
| Jun 25, 2:52 PM CDT | Special Weather Statement | ILX | Lawrence | 23 min |
| Jun 25, 5:42 PM CDT | Special Weather Statement | ILX | Piatt | 33 min |
| Jun 25, 5:58 PM CDT | Tornado Warning | ILX | DeWitt, Macon, Piatt | 32 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.