Alert archive / Illinois / Severe Thunderstorm Watches in 2014
Severe Thunderstorm Watch 216
The Storm Prediction Center issued this severe thunderstorm watch at Jun 4, 2014, 1:52 AM CDT for 12 counties in Illinois. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 4, 2014, 1:52 AM CDT (06:52 UTC)
- Expired
- Jun 4, 2014, 4:40 AM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
Counties Champaign County, IL, Christian County, IL, Coles County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Macon County, IL, McLean County, IL, Moultrie County, IL, Piatt County, IL, Shelby County, IL, Vermilion County, IL
The radar
The Lincoln radar (KILX), 65 km from the middle of the area, began a volume at 06:53 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 2:11 AM CDT | Tornado Warning | ILX | DeWitt, McLean, Piatt | 19 min |
| Jun 4, 2:23 AM CDT | Severe Thunderstorm Warning | ILX | McLean | 22 min |
| Jun 4, 2:25 AM CDT | Severe Thunderstorm Warning | ILX | Champaign | 50 min |
| Jun 4, 2:28 AM CDT | Flash Flood Warning | ILX | Macon, Moultrie, Piatt | 3 hr |
| Jun 4, 3:38 AM CDT | Flash Flood Warning | ILX | Coles, Douglas, Edgar | 3 hr |
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 00:00Z, 6.9 hours before the alert went out and 3 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2429 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 3, 8:05 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Greene, Jersey, Morgan and 2 more | 85 min |
| Jun 3, 9:25 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Pike | 5 hr |
| Jun 3, 11:04 PM CDT | Severe Thunderstorm Watch | SPC | Cass, Fulton, Logan, Mason, Menard, Morgan and 4 more | 4 hr |
| Jun 4, 1:29 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Champaign, Christian and 23 more | 91 min |
| Jun 4, 3:46 AM CDT | Mesoscale Discussion | SPC | Champaign, Coles, Douglas, Edgar, Moultrie, Piatt and 2 more | 59 min |
| Jun 4, 5:00 AM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more | 4 hr |
| Jun 4, 7:01 AM CDT | Mesoscale Discussion | SPC | Bond, Clinton, Fayette, Madison, Monroe, Saint Clair | 89 min |
| Jun 4, 12:20 PM CDT | Mesoscale Discussion | SPC | Alexander, Clay, Clinton, Edwards, Franklin, Gallatin and 22 more | 115 min |
| Jun 4, 2:21 PM CDT | Tornado Watch | SPC | Alexander, Clay, Clinton, Edwards, Franklin, Gallatin and 22 more | 6 hr |
| Jun 4, 6:57 PM CDT | Mesoscale Discussion | SPC | Alexander, Massac, Pope, Pulaski | 2 hr |
Nearby
Severe Thunderstorm Watches in Illinois, 2014Every severe thunderstorm watch in 2014
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.