Alert archive / Illinois / Tornado Warnings in 2024

Tornado Warning 49, NWS Quad Cities, IA

June 25, 2024Henry County, Illinois

NWS Quad Cities, IA issued this tornado warning at Jun 25, 2024, 8:41 PM CDT for Henry County, Illinois. It was in force for 18 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, 2024, 8:41 PM CDT (01:41 UTC)
Expired
Jun 25, 2024, 8:59 PM CDT
In force
18 min
Issued by
NWS Quad Cities, IA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Henry County, IL

The radar

The Quad Cities radar (KDVN), 55 km from the middle of the area, began a volume at 01:43 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, 5:17 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.7 hours before the alert went out and 181 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 2024-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2024-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 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
7 J/kg
Mixed-layer CIN
-485 J/kg
Mixed-layer LCL
2407 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
173 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

264 
WFUS53 KDVN 260141
TORDVN
ILC073-260215-
/O.NEW.KDVN.TO.W.0049.240626T0141Z-240626T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Quad Cities IA/IL
841 PM CDT Tue Jun 25 2024

The National Weather Service in the Quad Cities has issued a

* Tornado Warning for...
  Southwestern Henry County in northwestern Illinois...

* Until 915 PM CDT.

* At 840 PM CDT, a severe thunderstorm capable of producing a 
  tornado was located over Woodhull, or 10 miles southwest of 
  Cambridge, 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 dangerous storm will be near...
  Woodhull and Nekoma around 845 PM CDT.

This includes Interstate 74 in Illinois between mile markers 29 and
33.
 
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.

&&

LAT...LON 4115 9040 4123 9037 4118 9009 4115 9009
TIME...MOT...LOC 0140Z 291DEG 34KT 4118 9034 

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

$$

Friedlein
2 follow-up statements
883 
WWUS53 KDVN 260150
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
850 PM CDT Tue Jun 25 2024

ILC073-260215-
/O.CON.KDVN.TO.W.0049.000000T0000Z-240626T0215Z/
Henry IL-
850 PM CDT Tue Jun 25 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR SOUTH
CENTRAL HENRY COUNTY...

At 850 PM CDT, a severe thunderstorm capable of producing a tornado
was located 3 miles east of Woodhull, moving east at 30 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...
  Nekoma around 855 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 4115 9037 4121 9032 4117 9009 4115 9009
TIME...MOT...LOC 0150Z 290DEG 28KT 4116 9025 

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

$$

Friedlein
978 
WWUS53 KDVN 260159
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
859 PM CDT Tue Jun 25 2024

ILC073-260208-
/O.CAN.KDVN.TO.W.0049.000000T0000Z-240626T0215Z/
Henry IL-
859 PM CDT Tue Jun 25 2024

...THE TORNADO WARNING FOR SOUTH CENTRAL HENRY COUNTY IS CANCELLED...

The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has 
been cancelled.  However, gusty winds are still likely with this 
thunderstorm.

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

&&

LAT...LON 4115 9037 4121 9032 4117 9009 4115 9009
TIME...MOT...LOC 0156Z 291DEG 34KT 4113 9015 

$$

Friedlein

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 7:07 PM CDTSevere Thunderstorm WarningDVNHenderson38 min
Jun 25, 7:22 PM CDTSevere Thunderstorm Warning Destructive damage threatDVNRock Island68 min
Jun 25, 7:29 PM CDTSevere Thunderstorm WarningDVNBureau, Putnam46 min
Jun 25, 7:44 PM CDTTornado WarningDVNRock Island46 min
Jun 25, 7:52 PM CDTSevere Thunderstorm Warning Considerable damage threatDVNHenry, Rock Island68 min
Jun 25, 7:58 PM CDTSevere Thunderstorm WarningDVNJo Daviess, Stephenson22 min
Jun 25, 8:03 PM CDTFlash Flood WarningDVNBureau3 hr
Jun 25, 8:06 PM CDTSevere Thunderstorm WarningDVNHenry, Mercer54 min
Jun 25, 8:30 PM CDTFlash Flood WarningDVNPutnam3 hr
Jun 25, 8:36 PM CDTSevere Thunderstorm WarningDVNHenderson, Mercer, Warren39 min
Jun 25, 8:37 PM CDTSevere Thunderstorm WarningDVNHenry35 min
Jun 25, 9:10 PM CDTSevere Thunderstorm WarningDVNMercer, Rock Island22 min
Jun 25, 9:19 PM CDTRiver Flood WatchDVNHancock21 days
Jun 25, 10:53 PM CDTSpecial Weather StatementDVNHenderson37 min
Jun 26, 11:56 AM CDTRiver Flood WarningDVNHancock31 days
Jun 26, 11:56 AM CDTRiver Flood WarningDVNHancock27 days

Nearby

Tornado Warnings in Illinois, 2024Every tornado warning in 2024Tornadoes in 2024

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.