Alert archive / Illinois / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 90, NWS Lincoln, IL

July 11, 20205 counties in Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jul 11, 2020, 8:27 PM CDT for 5 counties in Illinois. It was in force for 49 min. 25 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 11, 2020, 8:27 PM CDT (01:27 UTC)
Expired: Jul 11, 2020, 9:16 PM CDT
In force: 49 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Fulton County, IL, McLean County, IL, Peoria County, IL, Tazewell County, IL, Woodford County, IL

The radar

The Lincoln radar (KILX), 65 km from the middle of the area, began a volume at 01:26 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.

What was reported inside it

Time	Report	Where	Remark
Jul 11, 8:27 PM CDT	TSTM WND GST 65	3 E Hanna City, IL
Jul 11, 8:29 PM CDT	TSTM WND DMG	Bartonville, IL	TREES DOWN. TIME ESTIMATED BY RADAR.
Jul 11, 8:30 PM CDT	TSTM WND DMG	3 Nnw East Peoria, IL	LARGE MAPLE TREE DOWN ON GLEN OAK AVENUE
Jul 11, 8:30 PM CDT	HAIL 1	Trivoli, IL	REPORT OF HAIL GROWING.
Jul 11, 8:35 PM CDT	TSTM WND DMG	Bellevue, IL	TREES DOWN. TIME ESTIMATED BY RADAR.
Jul 11, 8:35 PM CDT	TSTM WND DMG	Peoria, IL	EIGHT INCH TREE DOWN AT BRADLEY UNIVERSITY. TIME ESTIMATED BY RADAR. CORRECTED LOCATION.
Jul 11, 8:36 PM CDT	HAIL 1	Pekin, IL
Jul 11, 8:36 PM CDT	HAIL 1.25	1 Ssw Peoria, IL
Jul 11, 8:40 PM CDT	TSTM WND DMG	1 W Washington, IL	EIGHT INCH TREE DOWN. TIME ESTIMATED BY RADAR.
Jul 11, 8:40 PM CDT	TSTM WND DMG	3 Se Morton, IL	EIGHT INCH TREE DOWN. TIME ESTIMATED BY RADAR. CORRECTED LOCATION.
Jul 11, 8:40 PM CDT	TSTM WND DMG	Peoria, IL	LARGE TREE AND POWER LINES DOWN ON HIGH ST.
Jul 11, 8:45 PM CDT	TSTM WND DMG	2 Ssw Roanoke, IL	10 POWER POLES DOWN. TIME ESTIMATED BY RADAR.
Jul 11, 8:46 PM CDT	TSTM WND GST 76	3 S Morton, IL
Jul 11, 8:50 PM CDT	TSTM WND DMG	E Pekin, IL	20 INCH TREE DOWN ON ROAD. THE TREE WAS ROTTED AT THE BASE.
Jul 11, 8:50 PM CDT	TSTM WND DMG	Low Point, IL	LARGE TREE ON THE ROADWAY
Jul 11, 8:50 PM CDT	TSTM WND DMG	Pekin, IL	TREE DOWN ON HOUSE
Jul 11, 8:50 PM CDT	TSTM WND GST 51	Roanoke, IL
Jul 11, 8:55 PM CDT	TSTM WND DMG	Secor, IL	SEVERAL TREES DOWN. TIME ESTIMATED BY RADAR.
Jul 11, 9:00 PM CDT	TSTM WND DMG	2 S Mackinaw, IL	CROPS FLATTENED. TIME ESTIMATED BY RADAR
Jul 11, 9:00 PM CDT	TSTM WND DMG	2 Sse El Paso, IL	LARGE AREA OF CORN FLATTENED. TIME ESTIMATED BY RADAR.
Jul 11, 9:00 PM CDT	TSTM WND DMG	Minier, IL	10 INCH TREE DOWN. TIME ESTIMATED BY RADAR
Jul 11, 9:00 PM CDT	HAIL 1	Hopedale, IL
Jul 11, 9:05 PM CDT	TSTM WND DMG	Hudson, IL	LARGE TREE DOWN
Jul 11, 9:05 PM CDT	TSTM WND GST 65	5 S Gridley, IL
Jul 11, 9:10 PM CDT	TSTM WND GST 65	7 W Bloomington, IL

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 26 storm reports to this severe thunderstorm warning; the first came 0 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 11, 3:58 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.5 hours before the alert went out and 81 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: 2061 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1648 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 4.4

Open this sounding in Storm Lab

The text

As transmitted.

389 
WUUS53 KILX 120127
SVRILX
ILC057-113-143-179-203-120230-
/O.NEW.KILX.SV.W.0090.200712T0127Z-200712T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
827 PM CDT Sat Jul 11 2020

The National Weather Service in Lincoln has issued a

* Severe Thunderstorm Warning for...
  Woodford County in central Illinois...
  Northeastern Fulton County in west central Illinois...
  Tazewell County in central Illinois...
  Western McLean County in central Illinois...
  Central Peoria County in central Illinois...

* Until 930 PM CDT.

* At 827 PM CDT, severe thunderstorms were located along a line
  extending from Chillicothe to near Peoria to Canton, moving east at
  50 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Peoria, Bloomington, Pekin, Canton, Eureka, Normal, East Peoria,
  Morton, Washington, Bartonville, Chillicothe, Creve Coeur, West
  Peoria, Metamora, Germantown Hills, Marquette Heights, El Paso,
  Tremont, Roanoke and Lexington.

This includes the following highways...
 Interstate 155 between mile markers 16 and 31.
 Interstate 39 between mile markers 0 and 25.
 Interstate 474 between mile markers 0 and 14.
 Interstate 55 between mile markers 157 and 187.
 Interstate 74 between mile markers 82 and 133.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4088 8893 4075 8893 4076 8890 4075 8869
      4070 8871 4032 8918 4055 9023 4076 8977
      4090 8961
TIME...MOT...LOC 0127Z 271DEG 45KT 4093 8951 4077 8967 4057 9007 

HAIL...1.00IN
WIND...60MPH
 
$$

Barnes

2 follow-up statements

871 
WWUS53 KILX 120158
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
858 PM CDT Sat Jul 11 2020

ILC057-143-120207-
/O.CAN.KILX.SV.W.0090.000000T0000Z-200712T0230Z/
Fulton-Peoria-
858 PM CDT Sat Jul 11 2020

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN FULTON AND
CENTRAL PEORIA COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

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

LAT...LON 4088 8893 4075 8893 4076 8890 4075 8869
      4070 8871 4032 8918 4046 8982 4063 8955
      4089 8938
TIME...MOT...LOC 0157Z 306DEG 41KT 4085 8909 4063 8928 4043 8968 

$$

ILC113-179-203-120230-
/O.CON.KILX.SV.W.0090.000000T0000Z-200712T0230Z/
Woodford-Tazewell-McLean-
858 PM CDT Sat Jul 11 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT
FOR WOODFORD...TAZEWELL AND WESTERN MCLEAN COUNTIES...

At 857 PM CDT, severe thunderstorms were located along a line
extending from near Minonk to Goodfield to near Green Valley, moving
southeast at 50 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Bloomington, Pekin, Eureka, Normal, East Peoria, Morton, Washington,
Metamora, Germantown Hills, El Paso, Tremont, Roanoke, Lexington,
Mackinaw, Hudson, Chenoa, Gridley, Minier, Danvers and South Pekin.

This includes the following highways...
 Interstate 155 between mile markers 16 and 31.
 Interstate 39 between mile markers 0 and 25.
 Interstate 474 between mile markers 13 and 14.
 Interstate 55 between mile markers 157 and 187.
 Interstate 74 between mile markers 98 and 133.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4088 8893 4075 8893 4076 8890 4075 8869
      4070 8871 4032 8918 4046 8982 4063 8955
      4089 8938
TIME...MOT...LOC 0157Z 306DEG 41KT 4085 8909 4063 8928 4043 8968 

HAIL...1.00IN
WIND...70MPH
 
$$

Barnes

766 
WWUS53 KILX 120216
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
916 PM CDT Sat Jul 11 2020

ILC113-179-203-120225-
/O.CAN.KILX.SV.W.0090.000000T0000Z-200712T0230Z/
Woodford-Tazewell-McLean-
916 PM CDT Sat Jul 11 2020

...THE SEVERE THUNDERSTORM WARNING FOR WOODFORD...TAZEWELL AND
FAR WESTERN MCLEAN COUNTIES IS CANCELLED...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been cancelled.

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

LAT...LON 4088 8893 4075 8893 4076 8890 4075 8869
      4070 8871 4032 8918 4046 8982 4063 8955
      4089 8938
TIME...MOT...LOC 0213Z 271DEG 45KT 4085 8882 4063 8901 4043 8941 

$$

Barnes

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Lincoln, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 11, 6:41 PM CDT, 1 hour 46 minutes earlier.

Area forecast discussion, Jul 11, 6:41 PM CDT, 1 hour 46 minutes before

Area Forecast Discussion
National Weather Service Lincoln IL
641 PM CDT Sat Jul 11 2020

.SYNOPSIS...
Issued at 252 PM CDT Sat Jul 11 2020

Scattered thunderstorms are possible tonight, as an upper level
disturbance tracks southeast across the region. Some storms could
be severe this evening, with damaging wind gusts and hail. Locally
heavy rain is also possible. Scattered showers and storms may
linger over eastern Illinois Sunday morning, though most of the
day will be dry and cooler. High pressure will start the work week
with dry and seasonable conditions.

&&

.SHORT TERM...(This evening through Sunday)
ISSUED AT 252 PM CDT Sat Jul 11 2020

Outflow boundary currently draped from north of Danville,
northwest to near DVN, then up to convection developing in central
IA. This should be the focus for isolated strong to severe storms
into the early evening. Besides this zone of low level convergence,
not much in the way of forcing until the upstream ascent ahead of
a strong shortwave over western MN. This has sparked a more
concentrated area of storms over southern MN, which should develop
southeast across IA this afternoon, and eventually into the state
this evening. This will bring the more widespread threat for
storms, some of which could be severe. 18z ILX sounding featured
ample instability at 2800 J/kg SBCAPE and fairly impressive (by
July standards) deep layer shear at 35-40 kt. Short range models
suggest this favorable atmosphere will persist well into the
evening, with some diurnal lowering of instability, but a 75 kt
upper jet streak diving towards southern IL to keep better shear
in place. CAMs favor the northeast third of the CWA
(near/northeast of I-74 corridor) to be most impacted by the storm
complex, in an 8 pm to 2 am window. Damaging downbursts to be the
main threat, but if a stronger cold pool can organize then a more
widespread damaging wind event could evolve from a QLCS or
forward propagating MCS.

Scattered showers and storms could percolate late tonight and
into Sunday morning, especially over eastern IL with the passage
of the mid level trof axis. Northwest gradient behind the system
at 10-20 mph and increased could cover will keep highs several
degrees lower at 82-85F.

.LONG TERM...(Monday through Saturday)
ISSUED AT 252 PM CDT Sat Jul 11 2020

High pressure settles over the area Monday, then begins to shift
east on Tuesday. This results in quiet and seasonable weather,
with highs again getting up near 90 on Tuesday.

Tuesday night through Thursday the pattern turns more active as
the upper jet dips south from Canada into the Midwest. This will
allow a series of shortwaves to cross the region, producing
periodic scattered storms. Severe and heavy rain potential may
evolve but is too far for any confidence in those details.

For Friday into next weekend, latest run of medium range guidance
suggests the upper ridge to our south will gradually build north.
This trends the forecast towards drier and hotter weather for the
end of the extended forecast.

&&

.AVIATION...(For the 00Z TAFS through 00Z Sunday evening)
Issued at 641 PM CDT Sat Jul 11 2020

Boundary stretched near the I-74 corridor early this evening will
be a focus for isolated thunderstorms for the next couple hours.
A better chance for more organized storm complex will track
southeast out of Iowa later this evening. This is primarily
expected to affect the I-74 sites where predominant TSRA has been
included for a few hours. Brief IFR conditions possible in
stronger storms. Not confident on show far south this will build
so kept out of SPI/DEC for now. The system is expected to push out
after 07-08z, though showers could linger near CMI past sunrise.
VFR conditions to follow for Sunday. Surface pressure gradient
should produce north winds gusting near 20 kt from late morning
through the afternoon.

&&

.ILX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

SYNOPSIS...25
SHORT TERM...25
LONG TERM...25
AVIATION...25

Hazardous weather outlook, Jul 11, 3:03 PM CDT, 5 hours 24 minutes before

Hazardous Weather Outlook
National Weather Service Lincoln IL
303 PM CDT Sat Jul 11 2020

ILZ027>031-037-038-043>046-122015-
Champaign-De Witt-Knox-Marshall-McLean-Peoria-Piatt-Stark-
Tazewell-Vermilion-Woodford-
303 PM CDT Sat Jul 11 2020

This Hazardous Weather Outlook is for portions of central
Illinois, east central Illinois and west central Illinois.

.DAY ONE...TONIGHT...

Scattered thunderstorms are possible late this afternoon and this
evening. Some storms may be severe, with locally damaging wind
gusts and isolated large hail. Heavy rain is also possible with
these storms and may result in localized flash flooding.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

A few lingering showers and thunderstorms are possible Sunday, but
these are not expected to be severe.

Additional thunderstorms are possible at times Tuesday night through
Friday. It is too early to determine the potential for severe
weather with these thunderstorms.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon through late
evening. Please relay any information about observed severe
weather to the NWS while following all local, state, and CDC
guidelines.

ILZ036-040>042-047>057-061>063-066>068-071>073-122015-
Cass-Christian-Clark-Clay-Coles-Crawford-Cumberland-Douglas-Edgar-
Effingham-Fulton-Jasper-Lawrence-Logan-Macon-Mason-Menard-Morgan-
Moultrie-Richland-Sangamon-Schuyler-Scott-Shelby-
303 PM CDT Sat Jul 11 2020

This Hazardous Weather Outlook is for portions of central
Illinois, east central Illinois, southeast Illinois and west
central Illinois.

.DAY ONE...TONIGHT...

Scattered thunderstorms are possible tonight. Some storms may be
severe, with locally damaging wind gusts and isolated large hail.
Heavy rain is also possible with these storms and may result in
localized flash flooding.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

A few lingering showers and thunderstorms are possible Sunday, but
these are not expected to be severe.

Additional thunderstorms are possible at times Tuesday night
through Friday. It is too early to determine the potential for
severe weather with these thunderstorms.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon through late
evening. Please relay any information about observed severe
weather to the NWS while following all local, state, and CDC
guidelines.

25

In the hours before

Local storm report, Jul 11, 6:26 PM CDT, 2 hours 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
626 PM CDT SAT JUL 11 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 PM     HAIL             1 SW CHAMPAIGN          40.10N 88.28W
07/11/2020  E1.50 INCH       CHAMPAIGN          IL   PUBLIC

            ALSO REPORTS OF 1.25 INCH HAIL IN THE SAME AREA.

&&

ERWIN

Local storm report, Jul 11, 7:30 PM CDT, 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
730 PM CDT SAT JUL 11 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0620 PM     TSTM WND DMG     3 SE PHILO              39.97N 88.12W
07/11/2020                   CHAMPAIGN          IL   TRAINED SPOTTER

            TREE BRANCHES BLOWN OFF. ESTIMATED 60MPH WINDS.

&&

ERWIN

Local storm report, Jul 11, 7:31 PM CDT, 56 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LINCOLN IL
731 PM CDT SAT JUL 11 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0405 PM     HAIL             3 S SECOR               40.70N 89.14W
07/11/2020  M1.25 INCH       WOODFORD           IL   COCORAHS

0438 PM     HAIL             FOOSLAND                40.36N 88.43W
07/11/2020  E1.50 INCH       CHAMPAIGN          IL   PUBLIC

0452 PM     HAIL             2 NE BLOOMINGTON        40.49N 88.94W
07/11/2020  M0.75 INCH       MCLEAN             IL   PUBLIC

0520 PM     HAIL             E URBANA                40.11N 88.21W
07/11/2020  E1.75 INCH       CHAMPAIGN          IL   EMERGENCY MNGR

            ON THE EAST SIDE OF TOWN

0525 PM     HAIL             3 ENE NORMAL            40.53N 88.95W
07/11/2020  M1.00 INCH       MCLEAN             IL   NWS EMPLOYEE

0535 PM     HAIL             PHILO                   40.00N 88.16W
07/11/2020  M1.75 INCH       CHAMPAIGN          IL   TRAINED SPOTTER

0600 PM     HAIL             1 SW CHAMPAIGN          40.10N 88.28W
07/11/2020  E1.50 INCH       CHAMPAIGN          IL   PUBLIC

            ALSO REPORTS OF 1.25 INCH HAIL IN THE SAME AREA.

0600 PM     HAIL             1 SW CHAMPAIGN          40.10N 88.28W
07/11/2020  M1.00 INCH       CHAMPAIGN          IL   TRAINED SPOTTER

0620 PM     TSTM WND DMG     3 SE PHILO              39.97N 88.12W
07/11/2020                   CHAMPAIGN          IL   TRAINED SPOTTER

            TREE BRANCHES BLOWN OFF. ESTIMATED 60MPH WINDS.

&&

ERWIN

Local storm report, Jul 11, 8:00 PM CDT, 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
800 PM CDT SAT JUL 11 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0741 PM     HAIL             BARTONVILLE             40.64N 89.66W
07/11/2020  M1.00 INCH       PEORIA             IL   EMERGENCY MNGR

0755 PM     HAIL             BARTONVILLE             40.64N 89.66W
07/11/2020  E2.50 INCH       PEORIA             IL   PUBLIC

0755 PM     HAIL             MARQUETTE HEIGHTS       40.62N 89.60W
07/11/2020  M1.75 INCH       TAZEWELL           IL   EMERGENCY MNGR

&&

ERWIN

Local storm report, Jul 11, 8:08 PM CDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
808 PM CDT SAT JUL 11 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0808 PM     HAIL             2 W EUREKA              40.72N 89.31W
07/11/2020  E1.00 INCH       WOODFORD           IL   TRAINED SPOTTER

&&

SBAKER

Local storm report, Jul 11, 8:21 PM CDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
821 PM CDT SAT JUL 11 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0805 PM     HAIL             GROVELAND               40.61N 89.53W
07/11/2020  E0.88 INCH       TAZEWELL           IL   EMERGENCY MNGR

&&

ERWIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 7:38 PM CDT	Severe Thunderstorm Warning	ILX	Knox, Peoria, Stark	37 min
Jul 11, 7:44 PM CDT	Severe Thunderstorm Warning	ILX	Peoria, Tazewell	46 min
Jul 11, 8:07 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Peoria, Woodford	38 min
Jul 11, 8:22 PM CDT	Severe Thunderstorm Warning	ILX	McLean, Tazewell	38 min
Jul 11, 8:42 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Woodford	31 min
Jul 11, 9:03 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Logan, McLean, Mason, Tazewell	42 min
Jul 11, 9:23 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, DeWitt, Logan, McLean, Macon, Piatt	67 min
Jul 11, 10:11 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Coles, Douglas, Edgar, Macon, Moultrie and 3 more	49 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2020 Every severe thunderstorm warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.