Alert archive / Illinois / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 5, NWS Lincoln, IL

March 27, 2021Clay County, Effingham County, Jasper County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Mar 27, 2021, 8:20 PM CDT for Clay County, Effingham County, Jasper County, Illinois. It was in force for 55 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: Mar 27, 2021, 8:20 PM CDT (01:20 UTC)
Expired: Mar 27, 2021, 9:15 PM CDT
In force: 55 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Clay County, IL, Effingham County, IL, Jasper County, IL

The radar

The Evansville,IN radar (KVWX), 105 km from the middle of the area, began a volume at 01:22 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
Mar 27, 4:44 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Mar 27, 8:19 PM CDT	Severe Thunderstorm Watch	SPC	114 min

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.3 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 933 m above ground
0-6 km bulk shear: 86 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 202 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

187 
WUUS53 KILX 280120
SVRILX
ILC025-049-079-280215-
/O.NEW.KILX.SV.W.0005.210328T0120Z-210328T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
820 PM CDT Sat Mar 27 2021

The National Weather Service in Lincoln has issued a

* Severe Thunderstorm Warning for...
  Western Jasper County in southeastern Illinois...
  Clay County in south central Illinois...
  Effingham County in south central Illinois...

* Until 915 PM CDT.

* At 820 PM CDT, severe thunderstorms were located along a line
  extending from near Shumway to near Altamont to near Salem, moving
  east at 45 mph.

  HAZARD...60 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Effingham, Flora, Altamont, Teutopolis, Louisville, Clay City,
  Watson, Dieterich, Beecher City, Edgewood, Xenia, Bible Grove,
  Shumway, Montrose, Wheeler, Iola, Hidalgo, Sailor Springs, Ingraham
  and Bogota.

This includes the following highways...
 Interstate 57 between mile markers 143 and 167.
 Interstate 70 between mile markers 79 and 104.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3861 8869 3891 8870 3891 8881 3922 8880
      3921 8847 3917 8847 3917 8810 3860 8840
TIME...MOT...LOC 0120Z 254DEG 39KT 3918 8871 3900 8875 3869 8898 

HAIL...0.88IN
WIND...60MPH
 
$$

Shimon

4 follow-up statements

250 
WWUS53 KILX 280136
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
836 PM CDT Sat Mar 27 2021

ILC025-049-079-280215-
/O.CON.KILX.SV.W.0005.000000T0000Z-210328T0215Z/
Jasper-Clay-Effingham-
836 PM CDT Sat Mar 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR WESTERN JASPER...CLAY AND EFFINGHAM COUNTIES...

At 835 PM CDT, severe thunderstorms were located along a line
extending from near Effingham to Edgewood to near Omega, moving east
at 40 mph.

HAZARD...60 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Effingham, Flora, Altamont, Teutopolis, Louisville, Clay City,
Watson, Dieterich, Beecher City, Edgewood, Xenia, Bible Grove,
Shumway, Montrose, Wheeler, Iola, Hidalgo, Sailor Springs, Ingraham
and Bogota.

This includes the following highways...
 Interstate 57 between mile markers 143 and 167.
 Interstate 70 between mile markers 79 and 104.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3861 8869 3891 8870 3891 8881 3922 8880
      3921 8847 3917 8847 3917 8810 3860 8840
TIME...MOT...LOC 0135Z 269DEG 35KT 3917 8854 3894 8866 3868 8881 

HAIL...0.88IN
WIND...60MPH
 
$$

Shimon

316 
WWUS53 KILX 280146
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
846 PM CDT Sat Mar 27 2021

ILC025-049-079-280215-
/O.CON.KILX.SV.W.0005.000000T0000Z-210328T0215Z/
Jasper-Clay-Effingham-
846 PM CDT Sat Mar 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR WESTERN JASPER...CLAY AND EASTERN EFFINGHAM COUNTIES...

At 846 PM CDT, severe thunderstorms were located along a line
extending from Montrose to near Dieterich to near Louisville, moving
east at 55 mph.

HAZARD...60 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Effingham, Flora, Teutopolis, Louisville, Clay City, Watson,
Dieterich, Edgewood, Xenia, Bible Grove, Montrose, Wheeler, Iola,
Hidalgo, Sailor Springs, Ingraham, Bogota, Mason, Oskaloosa and Rose
Hill.

This includes the following highways...
 Interstate 57 between mile markers 143 and 155.
 Interstate 70 between mile markers 98 and 104.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3861 8869 3891 8870 3902 8863 3908 8856
      3914 8851 3917 8847 3917 8810 3860 8840
TIME...MOT...LOC 0146Z 248DEG 47KT 3916 8837 3903 8845 3876 8858 

TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
 
$$

Shimon

867 
WWUS53 KILX 280200
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
900 PM CDT Sat Mar 27 2021

ILC025-049-079-280215-
/O.CON.KILX.SV.W.0005.000000T0000Z-210328T0215Z/
Jasper-Clay-Effingham-
900 PM CDT Sat Mar 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR WESTERN JASPER...CLAY AND SOUTHEASTERN EFFINGHAM COUNTIES...

At 900 PM CDT, severe thunderstorms were located along a line
extending from Hidalgo to near Newton to Flora, moving east at 50
mph.

HAZARD...60 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Flora, Louisville, Clay City, Dieterich, Xenia, Bible Grove, Wheeler,
Hidalgo, Sailor Springs, Ingraham, Bogota, Rose Hill, Wendelin,
Newton Lake, Gila, Elliotstown, Hord and Latona.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3861 8869 3889 8859 3917 8833 3917 8810
      3860 8840
TIME...MOT...LOC 0200Z 261DEG 42KT 3916 8813 3902 8823 3865 8848 

TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
 
$$

Shimon

500 
WWUS53 KILX 280212
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
912 PM CDT Sat Mar 27 2021

ILC025-049-079-280221-
/O.EXP.KILX.SV.W.0005.000000T0000Z-210328T0215Z/
Jasper-Clay-Effingham-
912 PM CDT Sat Mar 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN JASPER...CLAY AND
SOUTHEASTERN EFFINGHAM COUNTIES WILL EXPIRE AT 915 PM CDT...
    
The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
south central Illinois. A Severe Thunderstorm Watch also remains in
effect until 1100 PM CDT for south central and southeastern Illinois.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Lincoln.

Remember, a Severe Thunderstorm Warning still remains in effect for
eastern portions of Jasper and Clay County until 10 PM.

LAT...LON 3861 8869 3889 8859 3917 8833 3917 8810
      3860 8840
TIME...MOT...LOC 0211Z 254DEG 39KT 3918 8804 3904 8814 3867 8839 

$$

Shimon

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 27, 7:25 PM CDT	Special Weather Statement	ILX	Edgar	50 min
Mar 27, 8:06 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Cumberland, Shelby	54 min
Mar 27, 8:16 PM CDT	Tornado Warning	ILX	Coles, Cumberland, Shelby	44 min
Mar 27, 8:50 PM CDT	Severe Thunderstorm Warning	ILX	Clark	40 min
Mar 27, 9:02 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Crawford, Jasper, Lawrence, Richland	58 min
Mar 27, 9:27 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Edgar	21 min
Mar 28, 3:39 AM CDT	River Flood Warning	ILX	Clay, Richland	41 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 2021 Every 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.