Alert archive / Kentucky / Mesoscale Discussions in 2020
Mesoscale Discussion 33
The Storm Prediction Center issued this mesoscale discussion at Jan 11, 2020, 9:20 AM EST for 4 states. It was in force for 55 min.
The area
The outline as issued.
The facts
- Issued
- Jan 11, 2020, 9:20 AM EST (14:20 UTC)
- Expired
- Jan 11, 2020, 10:15 AM EST
- In force
- 55 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 84 counties
Clark County, IN, Crawford County, IN, Dearborn County, IN, Floyd County, IN, Harrison County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Ohio County, IN, Orange County, IN, Ripley County, IN, Scott County, IN, Switzerland County, IN, Washington County, IN, Adair County, KY, Anderson County, KY, Barren County, KY, Boone County, KY, Boyle County, KY, Breckinridge County, KY, Bullitt County, KY, Campbell County, KY, Carroll County, KY, Casey County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Fayette County, KY, Franklin County, KY, Gallatin County, KY, Garrard County, KY, Grant County, KY, Grayson County, KY, Green County, KY, Hardin County, KY, Harrison County, KY, Hart County, KY, Henry County, KY, Jefferson County, KY, Jessamine County, KY, Kenton County, KY, Larue County, KY, Lincoln County, KY, Madison County, KY, Marion County, KY, McCreary County, KY, Meade County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Nelson County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Pulaski County, KY, Rockcastle County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Washington County, KY, Wayne County, KY, Woodford County, KY, Butler County, OH, Hamilton County, OH, Bledsoe County, TN, Cannon County, TN, Clay County, TN, Cumberland County, TN, DeKalb County, TN, Fentress County, TN, Jackson County, TN, Macon County, TN, Morgan County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Scott County, TN, Smith County, TN, Van Buren County, TN, Warren County, TN, White County, TN
The radar
The Louisville radar (KLVX), 69 km from the middle of the area, began a volume at 14:21 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
Nashville Metro, TN (KBNA), launched 12:00Z, 2.3 hours before the alert went out and 173 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
- 819 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 633 m²/s²
- 0-3 km storm-relative helicity
- 864 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 11, 7:12 AM EST | Mesoscale Discussion | SPC | Spencer | 93 min |
| Jan 11, 9:36 AM EST | Severe Thunderstorm Watch | SPC | Clark, Dearborn, Floyd, Harrison, Jefferson, Ohio and 4 more | 7 hr |
| Jan 11, 7:57 AM EST | Tornado Watch | SPC | Allen, Butler, Caldwell, Christian, Daviess, Hancock and 10 more | 7 hr |
| Jan 11, 12:35 PM EST | Mesoscale Discussion | SPC | Adair, Anderson, Bath, Bourbon, Boyle, Bracken and 48 more | 85 min |
| Jan 11, 6:36 PM EST | Mesoscale Discussion | SPC | Letcher, Pike | 84 min |
| Jan 11, 12:58 AM EST | Tornado Watch | SPC | Crockett, Dyer, Fayette, Gibson, Haywood, Lake and 4 more | 7 hr |
| Jan 11, 4:52 AM EST | Mesoscale Discussion | SPC | Crockett, Dyer, Fayette, Hardeman, Haywood, Lauderdale and 3 more | 83 min |
| Jan 11, 5:17 AM EST | Tornado Watch | SPC | Benton, Carroll, Chester, Decatur, Hardeman, Hardin and 5 more | 6 hr |
| Jan 11, 6:06 AM EST | Mesoscale Discussion | SPC | Fayette, Hardeman, McNairy | 54 min |
| Jan 11, 10:28 AM EST | Mesoscale Discussion | SPC | Bedford, Bledsoe, Cannon, Clay, Coffee, Cumberland and 27 more | 92 min |
| Jan 11, 1:20 PM EST | Mesoscale Discussion | SPC | Bledsoe, Bradley, Franklin, Grundy, Hamilton, McMinn and 6 more | 85 min |
| Jan 11, 1:42 PM EST | Tornado Watch | SPC | Anderson, Bledsoe, Blount, Bradley, Coffee, Cumberland and 18 more | 7 hr |
| Jan 11, 4:16 PM EST | Mesoscale Discussion | SPC | Anderson, Blount, Bradley, Jefferson, Knox, Loudon and 9 more | 89 min |
Nearby
Mesoscale Discussions in Kentucky, 2020Mesoscale Discussions in Tennessee, 2020Mesoscale Discussions in Indiana, 2020Every mesoscale discussion in 2020
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.