Alert archive / Kentucky / Mesoscale Discussions in 2008
Mesoscale Discussion 1841
The Storm Prediction Center issued this mesoscale discussion at Jul 21, 2008, 2:20 PM CDT for 65 counties in Kentucky; 16 counties in Ohio. It was in force for 55 min.
The area
The outline as issued.
The facts
- Issued
- Jul 21, 2008, 2:20 PM CDT (19:20 UTC)
- Expired
- Jul 21, 2008, 3:15 PM CDT
- In force
- 55 min
- Issued by
- the Storm Prediction Center
All 81 counties
Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bath County, KY, Bell County, KY, Bourbon County, KY, Boyle County, KY, Breathitt County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Casey County, KY, Clark County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Franklin County, KY, Garrard County, KY, Grayson County, KY, Green County, KY, Hardin County, KY, Harlan County, KY, Hart County, KY, Jackson County, KY, Jessamine County, KY, Knox County, KY, Larue County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Lewis County, KY, Lincoln County, KY, Madison County, KY, Marion County, KY, McCreary County, KY, Menifee County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Montgomery County, KY, Morgan County, KY, Nelson County, KY, Nicholas County, KY, Owsley County, KY, Perry County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Rowan County, KY, Russell County, KY, Scott County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Warren County, KY, Washington County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Woodford County, KY, Ashland County, OH, Coshocton County, OH, Fairfield County, OH, Geauga County, OH, Hocking County, OH, Holmes County, OH, Knox County, OH, Licking County, OH, Lorain County, OH, Medina County, OH, Pike County, OH, Richland County, OH, Ross County, OH, Scioto County, OH, Summit County, OH, Wayne County, OH
The radar
The Cincinnati radar (KILN), 84 km from the middle of the area, began a volume at 19:21 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.3 hours before the alert went out and 86 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
- 1029 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 661 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
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 |
|---|---|---|---|---|
| Jul 21, 10:37 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bracken, Campbell, Carroll, Gallatin, Grant and 6 more | 6 hr |
| Jul 21, 12:03 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Allen, Anderson, Barren, Bath, Bell and 68 more | 6 hr |
| Jul 21, 5:28 PM CDT | Mesoscale Discussion | SPC | Allen, Christian, Logan, Simpson, Todd, Trigg and 1 more | 92 min |
| Jul 21, 8:24 AM CDT | Severe Thunderstorm Watch | SPC | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 4 hr |
| Jul 21, 9:28 AM CDT | Mesoscale Discussion | SPC | Ashland, Belmont, Carroll, Columbiana, Coshocton, Crawford and 31 more | 62 min |
| Jul 21, 5:33 PM CDT | Mesoscale Discussion | SPC | Carroll, Columbiana, Harrison, Jefferson, Mahoning, Tuscarawas | 57 min |
Nearby
Mesoscale Discussions in Kentucky, 2008Mesoscale Discussions in Ohio, 2008Every mesoscale discussion 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.