Alert archive / Illinois / Tornado Warnings in 2008
Tornado Warning 21, NWS Chicago, IL
NWS Chicago, IL issued this tornado warning at Jun 7, 2008, 4:28 PM CDT for Grundy County, Livingston County, Illinois. It was in force for 47 min. 4 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
- Jun 7, 2008, 4:28 PM CDT (21:28 UTC)
- Expired
- Jun 7, 2008, 5:15 PM CDT
- In force
- 47 min
- Issued by
- NWS Chicago, IL
- Area
- Storm-based polygon
Counties Grundy County, IL, Livingston County, IL
The radar
The Chicago radar (KLOT), 64 km from the middle of the area, began a volume at 21:32 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 |
|---|---|---|---|
| Jun 7, 4:34 PM CDT | TORNADO | 2 Nw Odell, IL | REPORTED BY PUBLIC...FIRE DEPARTMENT...AND STORM CHASER. TORNADO WITH DEBRIS CLOUD BETWEEN ODELL AND DWIGHT. LARGER THAN PREVIOUS TORNADO. |
| Jun 7, 4:45 PM CDT | TORNADO | 2 W Dwight, IL | LARGE TORNADO WEST OF I-55 NEAR ROUTE 17. |
| Jun 7, 4:48 PM CDT | TORNADO | 2 Nw Dwight, IL | MILE MARKER 222 JUST WEST OF I-55. |
| Jun 7, 4:52 PM CDT | TORNADO | Dwight, IL | 1 MILE SOUTH OF I-55 ON DWIGHT ROAD. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 7, 2:01 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 9.5 hours before the alert went out and 105 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.
- Mixed-layer CAPE
- 2468 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 502 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 181 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 7.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS53 KLOT 072129
TORLOT
ILC063-105-072215-
/O.NEW.KLOT.TO.W.0021.080607T2128Z-080607T2215Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
428 PM CDT SAT JUN 7 2008
THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A
* TORNADO WARNING FOR...
NORTHEASTERN LIVINGSTON COUNTY IN CENTRAL ILLINOIS...
SOUTHEASTERN GRUNDY COUNTY IN NORTHEAST ILLINOIS...
* UNTIL 515 PM CDT...
* AT 422 PM...THE PUBLIC REPORTED A TORNADO AND RADAR INDICATED
ROTATION NEAR CORNELL...MOVING NORTHEAST AT 32 MPH.
* THE TORNADO WILL BE NEAR...
DWIGHT BY 445 PM...
GARDNER BY 500 PM...
BRACEVILLE BY 510 PM...
A TORNADO HAS BEEN REPORTED TAKE COVER NOW MOVE TO A BASEMENT OR
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. MOBILE HOMES
AND VEHICLES SHOULD BE ABANDONED FOR MORE SUBSTANTIAL SHELTER. AVOID
WINDOWS
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
GOLF BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM SATURDAY EVENING FOR
NORTHEASTERN ILLINOIS.
LAT...LON 4108 8825 4106 8826 4094 8862 4103 8869
4128 8825
TIME...MOT...LOC 2128Z 236DEG 28KT 4102 8858
$$4 follow-up statements
000
WWUS53 KLOT 072138
SVSLOT
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
437 PM CDT SAT JUN 7 2008
ILC063-105-072215-
/O.CON.KLOT.TO.W.0021.000000T0000Z-080607T2215Z/
LIVINGSTON IL-GRUNDY IL-
437 PM CDT SAT JUN 7 2008
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR
SOUTHEASTERN GRUNDY AND NORTHEASTERN LIVINGSTON COUNTIES...
AT 436 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND STORM
SPOTTERS WERE TRACKING A LARGE AND EXTREMELY DANGEROUS TORNADO. THIS
TORNADO WAS LOCATED NEAR ODELL...MOVING NORTHEAST AT 32 MPH.
THE TORNADO WILL BE NEAR...
DWIGHT BY 445 PM CDT...
GARDNER BY 500 PM CDT...
SOUTH WILMINGTON...AND EAST BROOKLYN BY 505 PM CDT...
BRACEVILLE BY 510 PM CDT...
DO NOT USE HIGHWAY OVERPASSES FOR SHELTER. OVERPASSES DO NOT PROVIDE
PROTECTION FROM TORNADIC WINDS. VEHICLES STOPPED UNDER BRIDGES BLOCK
TRAFFIC AND PREVENT PEOPLE FROM GETTING OUT OF THE STORMS PATH AND
TO SHELTER. IF YOU CANNOT DRIVE AWAY FROM THE TORNADO...GET OUT OF
YOUR VEHICLE AND LIE FLAT IN A DITCH AS A LAST RESORT.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SATURDAY EVENING
FOR NORTHEASTERN ILLINOIS.
LAT...LON 4100 8845 4100 8846 4098 8850 4108 8860
4128 8825 4108 8825 4106 8826
TIME...MOT...LOC 2137Z 236DEG 28KT 4106 8850
$$000
WWUS53 KLOT 072147
SVSLOT
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
447 PM CDT SAT JUN 7 2008
ILC063-105-072215-
/O.CON.KLOT.TO.W.0021.000000T0000Z-080607T2215Z/
LIVINGSTON IL-GRUNDY IL-
447 PM CDT SAT JUN 7 2008
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR
SOUTHEASTERN GRUNDY AND NORTHEASTERN LIVINGSTON COUNTIES...
AT 445 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO. THIS
TORNADO WAS LOCATED NEAR DWIGHT...MOVING NORTHEAST AT 32 MPH.
THE TORNADO WILL BE NEAR...
GARDNER BY 500 PM CDT...
SOUTH WILMINGTON...AND EAST BROOKLYN BY 505 PM CDT...
BRACEVILLE BY 510 PM CDT...
DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF A
TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO SAFE
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT AND COVER
YOUR HEAD.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SATURDAY EVENING
FOR NORTHEASTERN ILLINOIS.
LAT...LON 4102 8848 4100 8846 4099 8846 4110 8856
4128 8825 4109 8826 4106 8826
TIME...MOT...LOC 2147Z 236DEG 28KT 4110 8841
$$
BRUMER000 WWUS53 KLOT 072201 SVSLOT SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 500 PM CDT SAT JUN 7 2008 ILC105-072210- /O.CAN.KLOT.TO.W.0021.000000T0000Z-080607T2215Z/ LIVINGSTON IL- 500 PM CDT SAT JUN 7 2008 ...THE TORNADO WARNING FOR NORTHEASTERN LIVINGSTON COUNTY IS CANCELLED... THE STORM HAS MOVED NORTH OF LIVINGSTON COUNTY AND NO LONGER POSES A THREAT. A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SATURDAY EVENING FOR NORTHEASTERN ILLINOIS. LAT...LON 4112 8827 4112 8849 4128 8825 4113 8826 TIME...MOT...LOC 2200Z 236DEG 28KT 4116 8830 $$ ILC063-072215- /O.CON.KLOT.TO.W.0021.000000T0000Z-080607T2215Z/ GRUNDY IL- 500 PM CDT SAT JUN 7 2008 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR SOUTHEASTERN GRUNDY COUNTY... AT 454 PM CDT...THE PUBLIC REPORTED A TORNADO FROM THIS STORM. THIS TORNADO WAS LOCATED NEAR GARDNER...MOVING NORTHEAST AT 32 MPH. THE TORNADO WILL BE NEAR... EAST BROOKLYN...SOUTH WILMINGTON...AND BRACEVILLE BY 505 PM CDT... A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SATURDAY EVENING FOR NORTHEASTERN ILLINOIS. LAT...LON 4112 8827 4112 8849 4128 8825 4113 8826 TIME...MOT...LOC 2200Z 236DEG 28KT 4116 8830 $$ BRUMER
000 WWUS53 KLOT 072210 SVSLOT SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 510 PM CDT SAT JUN 7 2008 ILC063-072220- /O.EXP.KLOT.TO.W.0021.000000T0000Z-080607T2215Z/ GRUNDY IL- 510 PM CDT SAT JUN 7 2008 ...THE TORNADO WARNING FOR SOUTHEASTERN GRUNDY COUNTY EXPIRES AT 515 PM CDT... THUNDERSTORMS HAVE WEAKENED AND NO LONGER POSE A THREAT OF SEVERE WEATHER FOR THE PREVIOUSLY WARNED AREA. A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SATURDAY EVENING FOR NORTHEASTERN ILLINOIS AND NORTHWEST INDIANA. LAT...LON 4112 8827 4112 8849 4128 8825 4113 8826 TIME...MOT...LOC 2210Z 236DEG 28KT 4120 8821 $$ BRUMER
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 3:10 PM CDT | Severe Thunderstorm Warning | LOT | Lee, Ogle | 65 min |
| Jun 7, 3:38 PM CDT | Tornado Warning | LOT | LaSalle, Livingston | 41 min |
| Jun 7, 3:48 PM CDT | Tornado Warning | LOT | LaSalle, Livingston | 57 min |
| Jun 7, 3:57 PM CDT | Severe Thunderstorm Warning | LOT | Winnebago | 31 min |
| Jun 7, 5:07 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Lake | 32 min |
| Jun 7, 5:21 PM CDT | Tornado Warning | LOT | Cook, Will | 54 min |
| Jun 7, 5:29 PM CDT | Special Marine Warning | LOT | 61 min | |
| Jun 7, 5:45 PM CDT | Tornado Warning | LOT | Kankakee, Will | 60 min |
| Jun 7, 5:47 PM CDT | Special Marine Warning | LOT | 118 min | |
| Jun 7, 6:08 PM CDT | Tornado Warning | LOT | Cook, Will | 67 min |
| Jun 7, 6:32 PM CDT | Tornado Warning | LOT | Cook | 50 min |
| Jun 7, 6:36 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 24 min |
Nearby
Tornado Warnings in Illinois, 2008Every tornado warning in 2008Tornadoes in 2008
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.