Alert archive / Kentucky / Severe Thunderstorm Watches in 2015
Severe Thunderstorm Watch 565
The Storm Prediction Center issued this severe thunderstorm watch at Dec 23, 2015, 6:25 PM CST for 38 counties in Kentucky. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Dec 23, 2015, 6:25 PM CST (00:25 UTC)
- Expired
- Dec 23, 2015, 11:50 PM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 0.5 in
- Strongest gust expected
- 60 kt
All 38 counties
Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bath County, KY, Bourbon County, KY, Boyle County, KY, Casey County, KY, Clark County, KY, Clinton County, KY, Cumberland County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Franklin County, KY, Garrard County, KY, Green County, KY, Harrison County, KY, Jackson County, KY, Jessamine County, KY, Lincoln County, KY, Madison County, KY, Marion County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Montgomery County, KY, Nicholas County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Rowan County, KY, Russell County, KY, Scott County, KY, Taylor County, KY, Washington County, KY, Wayne County, KY, Woodford County, KY
The radar
The Louisville radar (KLVX), 106 km from the middle of the area, began a volume at 00:27 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 10%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 5%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 23, 6:58 PM CST | Severe Thunderstorm Warning | LMK | Anderson, Bullitt, Franklin, Nelson, Shelby, Spencer | 47 min |
| Dec 23, 7:23 PM CST | Severe Thunderstorm Warning | LMK | Grayson, Green, Hardin, Hart, Larue, Marion and 1 more | 37 min |
| Dec 23, 7:24 PM CST | Severe Thunderstorm Warning | LMK | Anderson, Franklin, Henry, Scott, Shelby, Woodford | 36 min |
| Dec 23, 7:39 PM CST | Severe Thunderstorm Warning | LMK | Allen, Simpson, Warren | 36 min |
| Dec 23, 7:59 PM CST | Severe Thunderstorm Warning | LMK | Bourbon, Fayette, Harrison, Nicholas, Scott, Woodford | 46 min |
| Dec 23, 8:20 PM CST | Severe Thunderstorm Warning | JKL | Bath, Fleming, Montgomery, Rowan | 70 min |
| Dec 23, 8:38 PM CST | Severe Thunderstorm Warning | LMK | Green, Hart, Larue, Taylor | 22 min |
| Dec 23, 8:41 PM CST | Severe Thunderstorm Warning | LMK | Adair, Green, Hart, Metcalfe | 19 min |
| Dec 23, 9:01 PM CST | Severe Thunderstorm Warning | LMK | Green, Taylor | 29 min |
| Dec 23, 10:03 PM CST | Severe Thunderstorm Warning | LMK | Adair, Casey | 27 min |
| Dec 23, 10:14 PM CST | Severe Thunderstorm Warning | LMK | Adair, Cumberland, Metcalfe, Russell | 36 min |
| Dec 23, 10:20 PM CST | Severe Thunderstorm Warning | LMK | Casey, Lincoln | 40 min |
| Dec 23, 10:57 PM CST | Severe Thunderstorm Warning | LMK | Clinton | 33 min |
| Dec 23, 11:04 PM CST | Severe Thunderstorm Warning | JKL | McCreary, Pulaski, Wayne | 41 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.4 hours before the alert went out and 216 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
- 21 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 861 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 313 m²/s²
- 0-3 km storm-relative helicity
- 304 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 23, 7:42 PM CST | Mesoscale Discussion | SPC | Adair, Anderson, Barren, Bath, Bell, Bourbon and 57 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Kentucky, 2015Every severe thunderstorm watch in 2015
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.