Alert archive / Illinois / Tornado Warnings in 2026

Tornado Warning 64, NWS Quad Cities, IA

June 11, 2026McDonough County, Illinois

NWS Quad Cities, IA issued this tornado warning at Jun 11, 2026, 5:19 PM CDT for McDonough County, Illinois. It was in force for 41 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 11, 2026, 5:19 PM CDT (22:19 UTC)
Expired
Jun 11, 2026, 6:00 PM CDT
In force
41 min
Issued by
NWS Quad Cities, IA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County McDonough County, IL

The radar

The Lincoln radar (KILX), 111 km from the middle of the area, began a volume at 22:19 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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.

IssuedProductOfficeLasted
Jun 11, 1:57 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.3 hours before the alert went out and 143 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, Davenport, at 12:00Z on 2026-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 11 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, Davenport, at 12:00Z on 2026-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 square meters per square second.19395878Sfc1 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
11 J/kg
Mixed-layer CIN
-285 J/kg
Mixed-layer LCL
1008 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
-15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

505 
WFUS53 KDVN 112219
TORDVN
ILC109-112300-
/O.NEW.KDVN.TO.W.0064.260611T2219Z-260611T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Quad Cities IA/IL
519 PM CDT Thu Jun 11 2026

The National Weather Service in the Quad Cities has issued a

* Tornado Warning for...
  Southeastern McDonough County in west central Illinois...

* Until 600 PM CDT.

* At 519 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Industry, or 8 miles south of Macomb, moving east
  at 35 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Adair and Pennington Point around 525 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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

&&

LAT...LON 4028 9073 4037 9076 4046 9045 4028 9045
TIME...MOT...LOC 2219Z 263DEG 31KT 4036 9063 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Uttech
2 follow-up statements
844 
WWUS53 KDVN 112228
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
528 PM CDT Thu Jun 11 2026

ILC109-112300-
/O.CON.KDVN.TO.W.0064.000000T0000Z-260611T2300Z/
McDonough IL-
528 PM CDT Thu Jun 11 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR
SOUTHEASTERN MCDONOUGH COUNTY...

At 528 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Table Grove, or 13 miles southeast of Macomb, moving
east at 40 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
southeastern McDonough County, including the following locations...
Pennington Point and Doddsville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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

&&

LAT...LON 4028 9073 4037 9076 4046 9045 4028 9045
TIME...MOT...LOC 2228Z 267DEG 34KT 4035 9049 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Uttech
900 
WWUS53 KDVN 112254
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
554 PM CDT Thu Jun 11 2026

ILC109-112303-
/O.EXP.KDVN.TO.W.0064.000000T0000Z-260611T2300Z/
McDonough IL-
554 PM CDT Thu Jun 11 2026

...THE TORNADO WARNING FOR SOUTHEASTERN MCDONOUGH COUNTY WILL EXPIRE
AT 600 PM CDT...

The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. Gusty winds are 
still possible.

A Tornado Watch remains in effect until 900 PM CDT for west central
Illinois.

Remember, a Severe Thunderstorm Warning still remains in effect for
portions of McDonough County.

&&

LAT...LON 4028 9073 4037 9076 4046 9045 4028 9045
TIME...MOT...LOC 2253Z 263DEG 31KT 4038 9021 

$$

Uttech

What forecasters said that day

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

NWS Quad Cities, IA wrote its last area forecast discussion before this tornado warning went out at Jun 11, 2:32 PM CDT, 2 hours 47 minutes earlier. Its key messages:

  • The threat for fast-moving, severe storms this continues this afternoon. A tornado watch is in effect across much of the area until 9PM.
  • Heavy rain and flooding is also a threat for those areas that saw the heaviest rain earlier today. A Flood Watch is in effect until 7PM.
  • Cooler and drier weather will settle in Friday, but a chance for storms returns Saturday. A few storms could be strong to severe.
Area forecast discussion, Jun 11, 2:32 PM CDT, 2 hours 47 minutes before
Area Forecast Discussion
National Weather Service Quad Cities IA IL
232 PM CDT Thu Jun 11 2026

.KEY MESSAGES...

- The threat for fast-moving, severe storms this continues this
  afternoon. A tornado watch is in effect across much of the
  area until 9PM.

- Heavy rain and flooding is also a threat for those areas that
  saw the heaviest rain earlier today. A Flood Watch is in
  effect until 7PM.

- Cooler and drier weather will settle in Friday, but a chance
  for storms returns Saturday. A few storms could be strong to
  severe.

&&

.SHORT TERM /THROUGH TONIGHT/...
Issued at 139 PM CDT Thu Jun 11 2026

Severe thunderstorm likelihood continues for this afternoon but
some muddiness exists in the forecast details. The imprint on the
atmosphere from the morning MCS is markedly present with stable
low-level air signatures on radar and satellite, and this extends
across much of our area. Offsetting this to some degree is the
1000 mb low pressure near Des Moines tracking northeast, resulting
in some synoptic scale air mass recovery from the south. While
southeast winds are gusting across eastern Iowa now, the amount of
recovery in that is still limited due to lingering widespread
cloud cover. The post MCS air mass is looking more likely to be
enough to prevent a full recovery to northwest portions of the
CWA, at least of a notable tornado threat and significant severe
wind threat. It may even prevent it for many locations north of
I-80 as well, but synoptically there is still strong forcing for
ascent spreading over the area so not able to say that for
certain.

In summary, the area we are particularly concerned for surface-
based supercell/multicells capable of longer-lived mesocyclones
is along and east of the Mississippi River and along and south of
I-80 during the mid to late afternoon. Given more oblique shear
orientation with respect to the incoming cold front, and just how
cold frontal convection tends to evolve, it might not take long
(1-3 hours after initiation) for developing storms across the CWA
to become more clusters or segments, with a good bet of severe
winds in any that do, some significant in any mature bowing
segments (75+ mph).

Storms should be east of the area this evening as a cold front
moves through. This cold front will bring northwest winds in
its wake. Forecast soundings have trended down a bit, but could
still see gusts in excess of 35 mph for a couple of hours after
the front passes through. These winds will taper off overnight
and become more westerly, and temperatures will fall into the
mid 50s.

&&

.LONG TERM /FRIDAY THROUGH WEDNESDAY/...
Issued at 139 PM CDT Thu Jun 11 2026

Friday through Saturday...On Friday, a brief area of high
pressure will build in, leading to mostly sunny skies. This will
exit eastward Friday night, and southerly return flow will
develop. By Saturday afternoon forecast soundings show 1000 to
2000 J/kg, with ample deep layer speed shear. A weak boundary
will be the focus for scattered thunderstorms, and a few could
produce severe weather. Right now large hail looks like the
primary threat.

Sunday through Thursday...Ensemble guidance shows lower height
anomalies spreading across the central US next week, which
supports cooler temperatures. A few weak disturbances embedded
in northwest flow will bring small chances for showers and
thunderstorms, but overall the first half of next week appears
mostly dry.

&&

.AVIATION /12Z TAFS THROUGH 12Z FRIDAY/...
Issued at 1235 AM CDT Thu Jun 11 2026

Main concern through 00Z this evening is scattered
thunderstorms. A few storms could produce damaging wind and
hail, but given the lower predictability did remove hail from
the TAFs.
A cold front will follow once storms exit the region this
evening, bringing VFR conditions, and a brief period of gusty
northwest winds. These winds will decrease later this evening
and overnight.

&&

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...Flood Watch until 7 PM CDT this evening for IAZ040>042-051>054-
     063>068-076>078-087>089-098-099.
IL...Flood Watch until 7 PM CDT this evening for ILZ001-002-007-009-
     015>018-024>026-034-035.
MO...Flood Watch until 7 PM CDT this evening for MOZ009-010.

&&

SHORT TERM...NWS
LONG TERM...NWS
AVIATION...NWS
Hazardous weather outlook, Jun 11, 1:14 PM CDT, 4 hours 5 minutes before
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
114 PM CDT Thu Jun 11 2026

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-121815-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
114 PM CDT Thu Jun 11 2026

This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.

.DAY ONE...THIS AFTERNOON AND TONIGHT

Another round of storms capable of producing severe weather will
develop this afternoon and evening. The main threat area is east
of the Mississippi River.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

Thunderstorms are expected Saturday afternoon and evening across
the area, some of which may be severe. The Storm Prediction Center
has a slight, level 2 out of 5, risk for parts of the area.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will be needed today.

NWS

In the hours before

Local storm report, Jun 11, 1:28 PM CDT, 3 hours 51 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
128 PM CDT Thu Jun 11 2026

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

0845 AM     Rain             1 WNW Bettendorf        41.57N 90.50W
06/11/2026  M2.00 Inch       Scott              IA   Trained Spotter

            24-hour rainfall accumulation.

&&

CMD
Local storm report, Jun 11, 1:33 PM CDT, 3 hours 46 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
133 PM CDT Thu Jun 11 2026

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

1206 PM     Rain             2 NW North Liberty      41.76N 91.62W
06/11/2026  M0.78 Inch       Johnson            IA   Trained Spotter

            Todays AM rain total.

1139 AM     Rain             2 SW Yarmouth           41.01N 91.35W
06/11/2026  M1.00 Inch       Des Moines         IA   Public

            Rainfall total from 945-1130AM.

0941 AM     Rain             1 N Ely                 41.89N 91.59W
06/11/2026  M1.00 Inch       Linn               IA   Public

            Todays AM rain total.

0818 AM     Rain             Carthage                40.41N 91.13W
06/11/2026  M3.20 Inch       Hancock            IL   Trained Spotter

            Rainfall total from Wednesday and overnight.

0702 AM     Rain             Le Claire               41.60N 90.36W
06/11/2026  M1.05 Inch       Scott              IA   Trained Spotter

            24 hour rainfall.

0644 AM     Rain             3 E Garden Plain        41.81N 90.08W
06/11/2026  M1.20 Inch       Whiteside          IL   Trained Spotter

            Wednesday and overnight rainfall totals.

0630 AM     Rain             2 NE Colusa             40.59N 91.15W
06/11/2026  M1.47 Inch       Hancock            IL   Trained Spotter

            Rainfall total from last nights Severe
            Thunderstorm. Small live tree limbs down and
            heavy rainfall with gusty winds at times.

0132 PM     Rain             2 NNW Oakland Mills     40.97N 91.63W
06/11/2026  M1.20 Inch       Henry              IA   Trained Spotter

            Total from AM storms (830-1130AM).

&&
Special weather statement, Jun 11, 2:07 PM CDT, 3 hours 12 minutes before
Special Weather Statement
National Weather Service Quad Cities IA IL
207 PM CDT Thu Jun 11 2026

ILZ017-018-112115-
Bureau-Putnam-
Including the cities of Princeton and Hennepin
207 PM CDT Thu Jun 11 2026

...Strong Non-Thunderstorm Winds Through 4 PM...

Strong easterly wind gusts not associated with thunderstorms have
developed across part of the Interstate 80 corridor in Illinois
and portions of Bureau and Putnam counties. Spotters reported 55
to 65 MPH winds for 5 minutes in Princeton, Illinois just before 2
PM. These should persist through 3 to 4 PM. Expect temporary
difficult driving conditions for high profile vehicles.
Local storm report, Jun 11, 2:59 PM CDT, 2 hours 20 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
259 PM CDT Thu Jun 11 2026

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

0246 PM     Flash Flood      1 ESE Dubuque           42.50N 90.68W
06/11/2026                   Dubuque            IA   Emergency Mngr

            EM reported roads closed due to flooding.

&&

ALE
Local storm report, Jun 11, 4:24 PM CDT, 55 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
424 PM CDT Thu Jun 11 2026

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

0415 PM     Flash Flood      Dubuque                 42.50N 90.69W
06/11/2026                   Dubuque            IA   Public

            Report of flooded basements and running
            water over some neighborhood streets.

&&
Local storm report, Jun 11, 5:19 PM CDT, 0 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
519 PM CDT Thu Jun 11 2026

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

0420 PM     Tstm Wnd Dmg     1 W Kahoka              40.42N 91.73W
06/11/2026                   Clark              MO   Law Enforcement

            Several large tree limbs down.

&&

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 10, 7:02 PM CDTTornado WarningDVNBureau43 min
Jun 10, 7:17 PM CDTSevere Thunderstorm WarningDVNHancock, Henderson, McDonough, Warren58 min
Jun 10, 7:20 PM CDTSevere Thunderstorm Warning Considerable damage threatDVNBureau, Henry, Putnam55 min
Jun 10, 7:30 PM CDTSevere Thunderstorm WarningDVNHancock75 min
Jun 10, 8:19 PM CDTFlash Flood WarningDVNHancock5 hr
Jun 10, 8:49 PM CDTSevere Thunderstorm WarningDVNHancock, McDonough, Warren56 min
Jun 10, 9:26 PM CDTSevere Thunderstorm WarningDVNHancock34 min
Jun 10, 9:44 PM CDTRiver Flood WarningDVNHenry, Rock Island, Whiteside5 days
Jun 10, 9:44 PM CDTRiver Flood WarningDVNHenry, Rock Island6 days
Jun 10, 10:13 PM CDTRiver Flood WarningDVNHancock, McDonough3 days
Jun 11, 9:18 AM CDTSevere Thunderstorm Warning Considerable damage threatDVNMercer, Rock Island52 min
Jun 11, 9:20 AM CDTSevere Thunderstorm WarningDVNHenderson, Mercer, Warren54 min
Jun 11, 9:36 AM CDTRiver Flood WatchDVNHenry11 hr
Jun 11, 11:21 AM CDTSevere Thunderstorm WarningDVNHancock, Henderson, McDonough, Warren54 min
Jun 11, 3:09 PM CDTTornado WarningDVNHancock51 min
Jun 11, 3:51 PM CDTTornado WarningDVNHancock39 min
Jun 11, 4:19 PM CDTTornado WarningDVNHancock, McDonough56 min
Jun 11, 4:57 PM CDTFlash Flood WarningDVNJo Daviess, Stephenson3 hr
Jun 11, 5:02 PM CDTFlash Flood WarningDVNHancock, McDonough4 hr
Jun 11, 5:09 PM CDTTornado WarningDVNPutnam17 min
Jun 11, 5:14 PM CDTSevere Thunderstorm WarningDVNHancock, McDonough45 min
Jun 11, 5:45 PM CDTTornado WarningDVNBureau, Henry30 min

Nearby

Tornado Warnings in Illinois, 2026Every tornado warning in 2026Tornadoes in 2026

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.