Alert archive / Illinois / Tornado Watches in 2004
Tornado Watch 426
The Storm Prediction Center issued this tornado watch at Jun 10, 2004, 3:45 PM CDT for 17 counties in Illinois; 9 counties in Indiana. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 10, 2004, 3:45 PM CDT (20:45 UTC)
- Expired
- Jun 10, 2004, 9:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 26 counties
Champaign County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Ford County, IL, Fulton County, IL, Knox County, IL, Logan County, IL, Marshall County, IL, Mason County, IL, McLean County, IL, Peoria County, IL, Piatt County, IL, Stark County, IL, Tazewell County, IL, Vermilion County, IL, Woodford County, IL, Clay County, IN, Fountain County, IN, Montgomery County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN
The radar
The Lincoln radar (KILX), 55 km from the middle of the area, began a volume at 20:46 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.
Warnings issued inside it
15 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 3:50 PM CDT | Tornado Warning | ILX | Peoria | 55 min |
| Jun 10, 3:57 PM CDT | Tornado Warning | ILX | Champaign, Vermilion | 63 min |
| Jun 10, 3:57 PM CDT | Tornado Warning | IND | Parke | 33 min |
| Jun 10, 4:17 PM CDT | Tornado Warning | ILX | McLean | 58 min |
| Jun 10, 4:27 PM CDT | Tornado Warning | IND | Parke | 48 min |
| Jun 10, 4:29 PM CDT | Tornado Warning | ILX | Tazewell | 46 min |
| Jun 10, 5:02 PM CDT | Tornado Warning | ILX | Woodford | 58 min |
| Jun 10, 5:26 PM CDT | Tornado Warning | IND | Putnam | 49 min |
| Jun 10, 5:55 PM CDT | Tornado Warning | ILX | McLean, Woodford | 65 min |
| Jun 10, 6:15 PM CDT | Severe Thunderstorm Warning | ILX | Logan | 60 min |
| Jun 10, 6:15 PM CDT | Tornado Warning | IND | Putnam | 30 min |
| Jun 10, 6:20 PM CDT | Severe Thunderstorm Warning | ILX | Tazewell | 55 min |
| Jun 10, 6:26 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt | 64 min |
| Jun 10, 6:59 PM CDT | Severe Thunderstorm Warning | ILX | McLean | 61 min |
| Jun 10, 7:35 PM CDT | Severe Thunderstorm Warning | IND | Owen | 25 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.8 hours before the alert went out and 38 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
- 200 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 794 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 255 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 11:46 AM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 27 more | 89 min |
| Jun 10, 5:30 PM CDT | Mesoscale Discussion | SPC | Bureau, DeKalb, DuPage, Grundy, Henry, Iroquois and 11 more | 90 min |
| Jun 10, 5:55 PM CDT | Tornado Watch | SPC | Bureau, Carroll, Champaign, DeWitt, Douglas, Edgar and 27 more | 4 hr |
Nearby
Tornado Watches in Illinois, 2004Tornado Watches in Indiana, 2004Every tornado watch in 2004
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.