Alert archive / Kentucky / Mesoscale Discussions in 2016
Mesoscale Discussion 1898
The Storm Prediction Center issued this mesoscale discussion at Dec 18, 2016, 2:30 AM CST for 5 states. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Dec 18, 2016, 2:30 AM CST (08:30 UTC)
- Expired
- Dec 18, 2016, 6:30 AM CST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 95 counties
Colbert County, AL, Lauderdale County, AL, Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bath County, KY, Bourbon County, KY, Boyle County, KY, Carter County, KY, Casey County, KY, Clark County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Garrard County, KY, Green County, KY, Greenup County, KY, Hart County, KY, Jackson County, KY, Jessamine County, KY, Larue County, KY, Lee County, KY, Lewis County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Marion County, KY, Mason County, KY, Menifee County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Montgomery County, KY, Morgan County, KY, Nicholas County, KY, Powell County, KY, Pulaski County, KY, Robertson County, KY, Rockcastle County, KY, Rowan County, KY, Russell County, KY, Simpson County, KY, Taylor County, KY, Warren County, KY, Washington County, KY, Wolfe County, KY, Woodford County, KY, Alcorn County, MS, Benton County, MS, Itawamba County, MS, Lee County, MS, Pontotoc County, MS, Prentiss County, MS, Tippah County, MS, Tishomingo County, MS, Union County, MS, Jackson County, OH, Lawrence County, OH, Scioto County, OH, Benton County, TN, Cheatham County, TN, Chester County, TN, Clay County, TN, Davidson County, TN, Decatur County, TN, Dickson County, TN, Giles County, TN, Hardeman County, TN, Hardin County, TN, Henderson County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Macon County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Montgomery County, TN, Perry County, TN, Robertson County, TN, Rutherford County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN, Wayne County, TN, Williamson County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 29 km from the middle of the area, began a volume at 08:30 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
Nashville Metro, TN (KBNA), launched 00:00Z, 8.5 hours before the alert went out and 38 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
- 26 J/kg
- Mixed-layer CIN
- -109 J/kg
- Mixed-layer LCL
- 692 m above ground
- 0-6 km bulk shear
- 81 kt
- 0-1 km storm-relative helicity
- 511 m²/s²
- 0-3 km storm-relative helicity
- 473 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 |
|---|---|---|---|---|
| Dec 17, 8:28 PM CST | Mesoscale Discussion | SPC | Colbert, Franklin, Lauderdale, Lawrence, Limestone, Marion | 62 min |
| Dec 17, 8:58 PM CST | Tornado Watch | SPC | Colbert, Franklin, Lauderdale, Lawrence, Limestone | 6 hr |
| Dec 17, 11:48 PM CST | Mesoscale Discussion | SPC | Colbert, Franklin, Lamar, Lauderdale, Lawrence, Limestone and 1 more | 87 min |
| Dec 18, 1:03 AM CST | Severe Thunderstorm Watch | SPC | Blount, Cullman, DeKalb, Fayette, Jackson, Lamar and 7 more | 4 hr |
| Dec 18, 3:24 AM CST | Mesoscale Discussion | SPC | Blount, Cullman, DeKalb, Etowah, Jackson, Marshall and 1 more | 66 min |
| Dec 18, 1:07 AM CST | Mesoscale Discussion | SPC | Bell, Boyd, Breathitt, Carter, Clay, Clinton and 21 more | 2 hr |
Nearby
Mesoscale Discussions in Kentucky, 2016Mesoscale Discussions in Tennessee, 2016Mesoscale Discussions in Mississippi, 2016Every mesoscale discussion in 2016
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.