Alert archive / Illinois / Mesoscale Discussions in 2007
Mesoscale Discussion 240
The Storm Prediction Center issued this mesoscale discussion at Mar 1, 2007, 12:48 PM CST for 34 counties in Illinois; 32 counties in Indiana; 11 counties in Kentucky. It was in force for 117 min.
The area
The outline as issued.
The facts
- Issued
- Mar 1, 2007, 12:48 PM CST (18:48 UTC)
- Expired
- Mar 1, 2007, 2:45 PM CST
- In force
- 117 min
- Issued by
- the Storm Prediction Center
All 77 counties
Champaign County, IL, Clark County, IL, Clay County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Edwards County, IL, Effingham County, IL, Fayette County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jasper County, IL, Jefferson County, IL, Johnson County, IL, Lawrence County, IL, Macon County, IL, Marion County, IL, Massac County, IL, Moultrie County, IL, Piatt County, IL, Pope County, IL, Richland County, IL, Saline County, IL, Shelby County, IL, Vermilion County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Boone County, IN, Brown County, IN, Clay County, IN, Crawford County, IN, Daviess County, IN, Dubois County, IN, Fountain County, IN, Gibson County, IN, Greene County, IN, Hendricks County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Orange County, IN, Owen County, IN, Parke County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Putnam County, IN, Spencer County, IN, Sullivan County, IN, Vanderburgh County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN, Warrick County, IN, Caldwell County, KY, Crittenden County, KY, Daviess County, KY, Hancock County, KY, Henderson County, KY, Hopkins County, KY, Livingston County, KY, McLean County, KY, Ohio County, KY, Union County, KY, Webster County, KY
The radar
The Evansville,IN radar (KVWX), 80 km from the middle of the area, began a volume at 18:51 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 nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 6.8 hours before the alert went out and 144 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
- 784 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 162 m²/s²
- 0-3 km storm-relative helicity
- 151 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 10:30 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 5 more | 90 min |
| Feb 28, 11:48 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Greene, Jersey and 5 more | 57 min |
| Mar 1, 12:12 AM CST | Mesoscale Discussion | SPC | Alexander, Jackson, Johnson, Massac, Pope, Pulaski and 2 more | 2 hr |
| Mar 1, 12:16 AM CST | Severe Thunderstorm Watch | SPC | Adams, Brown, Calhoun, Cass, Christian, Greene and 11 more | 6 hr |
| Mar 1, 1:05 AM CST | Severe Thunderstorm Watch | SPC | Gallatin, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 7 hr |
| Mar 1, 2:28 AM CST | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Christian, Greene and 11 more | 92 min |
| Mar 1, 3:35 AM CST | Mesoscale Discussion | SPC | Clinton, Jackson, Monroe, Perry, Randolph, Saint Clair and 1 more | 55 min |
| Mar 1, 3:58 AM CST | Tornado Watch | SPC | Alexander, Bond, Clinton, Fayette, Franklin, Jackson and 10 more | 8 hr |
| Mar 1, 4:18 AM CST | Mesoscale Discussion | SPC | Gallatin, Hardin, Johnson, Massac, Pope, Saline | 117 min |
| Mar 1, 8:40 AM CST | Tornado Watch | SPC | Champaign, Christian, Clark, Clay, Coles, Crawford and 27 more | 9 hr |
| Mar 1, 10:24 AM CST | Mesoscale Discussion | SPC | Brown, Bureau, Cass, Cook, DeKalb, DeWitt and 28 more | 96 min |
| Mar 1, 11:25 AM CST | Severe Thunderstorm Watch | SPC | Boone, Bureau, Cook, DeKalb, DuPage, Ford and 23 more | 6 hr |
| Mar 1, 1:47 PM CST | Mesoscale Discussion | SPC | Cook, DeKalb, DuPage, Ford, Grundy, Iroquois and 7 more | 88 min |
| Mar 1, 3:43 PM CST | Mesoscale Discussion | SPC | Adair, Anderson, Barren, Bell, Boyle, Casey and 36 more | 92 min |
Nearby
Mesoscale Discussions in Illinois, 2007Mesoscale Discussions in Indiana, 2007Mesoscale Discussions in Kentucky, 2007Every mesoscale discussion in 2007
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.