Alert archive / Illinois / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 62, NWS Lincoln, IL

June 25, 20214 counties in Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 25, 2021, 9:05 PM CDT for 4 counties in Illinois. It was in force for 25 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, 9:05 PM CDT (02:05 UTC)
Expired
Jun 25, 2021, 9:30 PM CDT
In force
25 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Logan County, IL, Mason County, IL, Menard County, IL, Tazewell County, IL

The radar

The Lincoln radar (KILX), 13 km from the middle of the area, began a volume at 02:04 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.

IssuedProductOfficeLasted
Jun 25, 5:06 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.1 hours before the alert went out and 75 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-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2021-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1254 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2021-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1254 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
910 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
204 m²/s²
Significant tornado parameter
0.7
Supercell composite
6.6

Open this sounding in Storm Lab

The text

As transmitted.

194 
WUUS53 KILX 260205
SVRILX
ILC107-125-129-179-260230-
/O.NEW.KILX.SV.W.0062.210626T0205Z-210626T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
905 PM CDT Fri Jun 25 2021

The National Weather Service in Lincoln has issued a

* Severe Thunderstorm Warning for...
  Northeastern Menard County in central Illinois...
  Central Logan County in central Illinois...
  South central Tazewell County in central Illinois...
  East central Mason County in central Illinois...

* Until 930 PM CDT.

* At 904 PM CDT, a severe thunderstorm was located over Middletown,
  or 11 miles southeast of Mason City, moving northeast at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Lincoln and Hartsburg.

This includes the following highways...
 Interstate 155 between mile markers 0 and 17.
 Interstate 55 between mile markers 114 and 138.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3998 8957 4022 8969 4042 8946 4017 8915
TIME...MOT...LOC 0204Z 225DEG 28KT 4007 8957 

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

Auten
1 follow-up statement
842 
WWUS53 KILX 260225
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
925 PM CDT Fri Jun 25 2021

ILC107-125-129-179-260234-
/O.EXP.KILX.SV.W.0062.000000T0000Z-210626T0230Z/
Menard-Logan-Tazewell-Mason-
925 PM CDT Fri Jun 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MENARD...CENTRAL
LOGAN...SOUTH CENTRAL TAZEWELL AND EAST CENTRAL MASON COUNTIES WILL
EXPIRE AT 930 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty 
winds up to 40 mph are still possible with this storm. 

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

LAT...LON 3998 8957 4022 8969 4042 8946 4017 8915
TIME...MOT...LOC 0224Z 225DEG 28KT 4017 8944 

$$

Auten

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 7:21 PM CDTSevere Thunderstorm WarningILXLogan, Mason, Tazewell39 min
Jun 25, 7:33 PM CDTSpecial Weather StatementILXMcLean42 min
Jun 25, 7:38 PM CDTSevere Thunderstorm WarningILXMorgan, Scott67 min
Jun 25, 7:53 PM CDTSevere Thunderstorm WarningILXDeWitt, Logan, McLean, Tazewell67 min
Jun 25, 8:16 PM CDTSevere Thunderstorm WarningILXCass, Menard, Morgan, Sangamon44 min
Jun 25, 8:29 PM CDTTornado WarningILXMcLean30 min
Jun 25, 8:49 PM CDTSevere Thunderstorm WarningILXDeWitt, McLean, Macon, Piatt41 min
Jun 25, 8:54 PM CDTFlash Flood WarningILXDeWitt, Logan, McLean, Mason, Tazewell6 hr
Jun 25, 9:47 PM CDTFlash Flood WarningILXMorgan, Scott6 hr
Jun 25, 9:59 PM CDTFlash Flood WarningILXDeWitt, McLean, Piatt5 hr
Jun 25, 10:18 PM CDTSevere Thunderstorm WarningILXChampaign, Coles, DeWitt, Douglas, Macon, Moultrie and 1 more27 min
Jun 26, 2:34 AM CDTAreal Flood WarningILXDeWitt, Logan, McLean, Mason, Piatt, Tazewell61 hr
Jun 26, 6:03 AM CDTRiver Flood WarningILXPiatt8 days
Jun 26, 9:44 AM CDTRiver Flood WarningILXMason, Menard4 days
Jun 26, 12:21 PM CDTTornado WarningILXMcLean24 min
Jun 26, 1:24 PM CDTTornado WarningILXMorgan, Scott36 min
Jun 26, 1:53 PM CDTTornado WarningILXMorgan37 min
Jun 26, 2:17 PM CDTTornado WarningILXMorgan, Sangamon28 min
Jun 26, 2:38 PM CDTTornado WarningILXMcLean, Woodford37 min
Jun 26, 3:12 PM CDTTornado WarningILXMcLean33 min
Jun 26, 3:19 PM CDTTornado WarningILXLogan, Sangamon26 min
Jun 26, 3:25 PM CDTFlash Flood WarningILXDeWitt, Logan, McLean, Macon, Mason, Menard and 3 more4 hr
Jun 26, 3:33 PM CDTSevere Thunderstorm WarningILXLogan27 min
Jun 26, 3:37 PM CDTTornado WarningILXMcLean23 min
Jun 26, 3:39 PM CDTTornado WarningILXLogan, Sangamon36 min
Jun 26, 4:04 PM CDTTornado WarningILXDeWitt26 min
Jun 26, 4:43 PM CDTSevere Thunderstorm WarningILXChampaign, DeWitt, McLean, Piatt32 min
Jun 26, 5:16 PM CDTSevere Thunderstorm WarningILXChampaign, DeWitt, McLean, Piatt44 min
Jun 26, 5:47 PM CDTTornado WarningILXDouglas, Moultrie, Piatt43 min
Jun 26, 5:50 PM CDTSevere Thunderstorm WarningILXVermilion40 min
Jun 26, 6:03 PM CDTTornado WarningILXChampaign, Douglas27 min
Jun 26, 6:24 PM CDTSevere Thunderstorm WarningILXChampaign, Douglas, Edgar, Vermilion81 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.