Alert archive / Kentucky / Mesoscale Discussions in 2018
Mesoscale Discussion 22
The Storm Prediction Center issued this mesoscale discussion at Jan 12, 2018, 8:51 AM EST for 4 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 12, 2018, 8:51 AM EST (13:51 UTC)
- Expired
- Jan 12, 2018, 1:45 PM EST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 136 counties
Clark County, IN, Dearborn County, IN, Decatur County, IN, Fayette County, IN, Floyd County, IN, Franklin County, IN, Jefferson County, IN, Jennings County, IN, Ohio County, IN, Ripley County, IN, Scott County, IN, Switzerland County, IN, Union County, IN, Wayne County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Boone County, KY, Bourbon County, KY, Boyle County, KY, Bracken 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, 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, Marion County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Nelson County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Robertson County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Washington County, KY, Woodford County, KY, Allen County, OH, Ashland County, OH, Ashtabula County, OH, Auglaize County, OH, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Crawford County, OH, Cuyahoga County, OH, Darke County, OH, Delaware County, OH, Erie County, OH, Fayette County, OH, Geauga County, OH, Greene County, OH, Hamilton County, OH, Hancock County, OH, Hardin County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Lake County, OH, Logan County, OH, Lorain County, OH, Madison County, OH, Marion County, OH, Medina County, OH, Miami County, OH, Montgomery County, OH, Morrow County, OH, Portage County, OH, Preble County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Shelby County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Union County, OH, Warren County, OH, Wayne County, OH, Wyandot County, OH, Bedford County, TN, Cannon County, TN, Clay County, TN, Coffee County, TN, Davidson County, TN, DeKalb County, TN, Franklin County, TN, Giles County, TN, Grundy County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Macon County, TN, Marshall County, TN, Maury County, TN, Moore County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Rutherford County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN, Van Buren County, TN, Warren County, TN, White County, TN, Williamson County, TN, Wilson County, TN
The radar
The Cincinnati radar (KILN), 84 km from the middle of the area, began a volume at 13:51 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 1.9 hours before the alert went out and 85 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
- 19 J/kg
- Mixed-layer CIN
- -128 J/kg
- Mixed-layer LCL
- 616 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 175 m²/s²
- 0-3 km storm-relative helicity
- 251 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, 9:43 PM EST | Mesoscale Discussion | SPC | Clay, Fountain, Montgomery, Parke, Putnam, Sullivan and 3 more | 6 hr |
| Jan 12, 3:00 AM EST | Mesoscale Discussion | SPC | Crawford, Dubois, Floyd, Gibson, Harrison, Perry and 5 more | 5 hr |
| Jan 12, 3:04 AM EST | Mesoscale Discussion | SPC | Adams, Allen, Bartholomew, Blackford, Boone, Brown and 56 more | 6 hr |
| Jan 12, 2:58 PM EST | Mesoscale Discussion | SPC | Boone, Campbell, Kenton | 4 hr |
Nearby
Mesoscale Discussions in Kentucky, 2018Mesoscale Discussions in Ohio, 2018Mesoscale Discussions in Tennessee, 2018Every mesoscale discussion in 2018
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.