Alert archive / Illinois / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 64, NWS Lincoln, IL

June 26, 2021Logan County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 26, 2021, 3:33 PM CDT for Logan County, Illinois. It was in force for 27 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 26, 2021, 3:33 PM CDT (20:33 UTC)
Expired: Jun 26, 2021, 4:00 PM CDT
In force: 27 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Logan County, IL

The radar

The Lincoln radar (KILX), 5 km from the middle of the area, began a volume at 20:35 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 26, 12:05 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.6 hours before the alert went out and 60 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: 683 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 684 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 263 m²/s²
0-3 km storm-relative helicity: 229 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

As transmitted.

214 
WUUS53 KILX 262033
SVRILX
ILC107-262100-
/O.NEW.KILX.SV.W.0064.210626T2033Z-210626T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
333 PM CDT Sat Jun 26 2021

The National Weather Service in Lincoln has issued a

* Severe Thunderstorm Warning for...
  Northeastern Logan County in central Illinois...

* Until 400 PM CDT.

* At 333 PM CDT, a severe thunderstorm was located over Lincoln,
  moving northeast at 55 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Atlanta around 345 PM CDT.

This includes the following highways...
 Interstate 155 between mile markers 0 and 2.
 Interstate 55 between mile markers 124 and 140.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 PM CDT for central
Illinois.

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4005 8935 4018 8946 4032 8936 4028 8928
      4027 8915 4014 8916
TIME...MOT...LOC 2033Z 232DEG 49KT 4016 8933 

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

Auten

1 follow-up statement

024 
WWUS53 KILX 262057
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
357 PM CDT Sat Jun 26 2021

ILC107-262107-
/O.EXP.KILX.SV.W.0064.000000T0000Z-210626T2100Z/
Logan-
357 PM CDT Sat Jun 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LOGAN COUNTY WILL
EXPIRE AT 400 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 700 PM CDT for central
Illinois.

LAT...LON 4005 8935 4018 8946 4032 8936 4028 8928
      4027 8915 4014 8916
TIME...MOT...LOC 2057Z 232DEG 49KT 4035 8901 

$$

Auten

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 7:21 PM CDT	Severe Thunderstorm Warning	ILX	Logan, Mason, Tazewell	39 min
Jun 25, 7:33 PM CDT	Special Weather Statement	ILX	McLean	42 min
Jun 25, 7:38 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Scott	67 min
Jun 25, 7:53 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Logan, McLean, Tazewell	67 min
Jun 25, 8:16 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Menard, Morgan, Sangamon	44 min
Jun 25, 8:29 PM CDT	Tornado Warning	ILX	McLean	30 min
Jun 25, 8:49 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, McLean, Macon, Piatt	41 min
Jun 25, 8:54 PM CDT	Flash Flood Warning	ILX	DeWitt, Logan, McLean, Mason, Tazewell	6 hr
Jun 25, 9:05 PM CDT	Severe Thunderstorm Warning	ILX	Logan, Mason, Menard, Tazewell	25 min
Jun 25, 9:47 PM CDT	Flash Flood Warning	ILX	Morgan, Scott	6 hr
Jun 25, 9:59 PM CDT	Flash Flood Warning	ILX	DeWitt, McLean, Piatt	5 hr
Jun 25, 10:18 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Coles, DeWitt, Douglas, Macon, Moultrie and 1 more	27 min
Jun 26, 2:34 AM CDT	Areal Flood Warning	ILX	DeWitt, Logan, McLean, Mason, Piatt, Tazewell	61 hr
Jun 26, 6:03 AM CDT	River Flood Warning	ILX	Piatt	8 days
Jun 26, 9:44 AM CDT	River Flood Warning	ILX	Mason, Menard	4 days
Jun 26, 12:21 PM CDT	Tornado Warning	ILX	McLean	24 min
Jun 26, 1:24 PM CDT	Tornado Warning	ILX	Morgan, Scott	36 min
Jun 26, 1:53 PM CDT	Tornado Warning	ILX	Morgan	37 min
Jun 26, 2:17 PM CDT	Tornado Warning	ILX	Morgan, Sangamon	28 min
Jun 26, 2:38 PM CDT	Tornado Warning	ILX	McLean, Woodford	37 min
Jun 26, 3:12 PM CDT	Tornado Warning	ILX	McLean	33 min
Jun 26, 3:19 PM CDT	Tornado Warning	ILX	Logan, Sangamon	26 min
Jun 26, 3:25 PM CDT	Flash Flood Warning	ILX	DeWitt, Logan, McLean, Macon, Mason, Menard and 3 more	4 hr
Jun 26, 3:37 PM CDT	Tornado Warning	ILX	McLean	23 min
Jun 26, 3:39 PM CDT	Tornado Warning	ILX	Logan, Sangamon	36 min
Jun 26, 4:04 PM CDT	Tornado Warning	ILX	DeWitt	26 min
Jun 26, 4:43 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, DeWitt, McLean, Piatt	32 min
Jun 26, 5:16 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, DeWitt, McLean, Piatt	44 min
Jun 26, 5:47 PM CDT	Tornado Warning	ILX	Douglas, Moultrie, Piatt	43 min
Jun 26, 5:50 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	40 min
Jun 26, 6:03 PM CDT	Tornado Warning	ILX	Champaign, Douglas	27 min
Jun 26, 6:24 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Douglas, Edgar, Vermilion	81 min

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.