Alert archive / Illinois / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 8, NWS Lincoln, IL

March 27, 2021Clark County, Edgar County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Mar 27, 2021, 9:27 PM CDT for Clark County, Edgar County, Illinois. It was in force for 21 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, 9:27 PM CDT (02:27 UTC)
Expired: Mar 27, 2021, 9:48 PM CDT
In force: 21 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Clark County, IL, Edgar County, IL

The radar

The Evansville,IN radar (KVWX), 118 km from the middle of the area, began a volume at 02:31 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

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.5 hours before the alert went out and 126 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.

532 
WUUS53 KILX 280227
SVRILX
ILC023-045-280300-
/O.NEW.KILX.SV.W.0008.210328T0227Z-210328T0300Z/

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

The National Weather Service in Lincoln has issued a

* Severe Thunderstorm Warning for...
  Southeastern Edgar County in east central Illinois...
  Eastern Clark County in east central Illinois...

* Until 1000 PM CDT.

* At 927 PM CDT, severe thunderstorms were located along a line
  extending from Oliver to near West Union, moving east at 30 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Marshall, Dennison, West Union, Oliver, York, Darwin, Lincoln Trail
  State Park and Sandford.

This includes Interstate 70 between mile markers 143 and 154.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3934 8756 3934 8758 3931 8760 3931 8762
      3930 8760 3928 8761 3925 8759 3925 8757
      3922 8757 3917 8762 3918 8783 3955 8768
      3958 8753 3936 8753
TIME...MOT...LOC 0227Z 261DEG 25KT 3950 8765 3927 8775 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

Shimon

1 follow-up statement

933 
WWUS53 KILX 280248
SVSILX

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

ILC023-045-280258-
/O.CAN.KILX.SV.W.0008.000000T0000Z-210328T0300Z/
Edgar-Clark-
948 PM CDT Sat Mar 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN EDGAR AND EASTERN
CLARK COUNTIES IS CANCELLED...
    
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning has
been cancelled.  However heavy rain is still possible with these
thunderstorms.

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

LAT...LON 3934 8756 3934 8758 3931 8760 3931 8762
      3930 8760 3928 8761 3925 8759 3925 8757
      3922 8757 3917 8762 3918 8783 3955 8768
      3958 8753 3936 8753
TIME...MOT...LOC 0245Z 261DEG 25KT 3952 8749 3929 8759 

$$

37

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, 8:20 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Effingham, Jasper	55 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 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.