Alert archive / Kentucky / Severe Thunderstorm Watches in 2011
Severe Thunderstorm Watch 882
The Storm Prediction Center issued this severe thunderstorm watch at Nov 14, 2011, 7:49 PM EST for 14 counties in Indiana; 23 counties in Kentucky; 6 counties in Ohio. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 14, 2011, 7:49 PM EST (00:49 UTC)
- Expired
- Nov 14, 2011, 10:41 PM EST
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 43 counties
Clark County, IN, Crawford County, IN, Dearborn County, IN, Dubois County, IN, Floyd County, IN, Harrison County, IN, Jefferson County, IN, Ohio County, IN, Orange County, IN, Perry County, IN, Ripley County, IN, Scott County, IN, Switzerland County, IN, Washington County, IN, Boone County, KY, Bracken County, KY, Breckinridge County, KY, Bullitt County, KY, Campbell County, KY, Carroll County, KY, Franklin County, KY, Gallatin County, KY, Grant County, KY, Grayson County, KY, Hancock County, KY, Hardin County, KY, Henry County, KY, Jefferson County, KY, Kenton County, KY, Meade County, KY, Ohio County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Shelby County, KY, Spencer County, KY, Trimble County, KY, Brown County, OH, Clermont County, OH, Clinton County, OH, Hamilton County, OH, Highland County, OH, Warren County, OH
The radar
The Louisville radar (KLVX), 62 km from the middle of the area, began a volume at 00:50 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
- 20%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 50%
Warnings issued inside it
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 14, 7:54 PM EST | Severe Thunderstorm Warning | LMK | Clark, Scott, Washington | 36 min |
| Nov 14, 7:55 PM EST | Severe Thunderstorm Warning | LMK | Crawford, Dubois, Orange, Perry | 35 min |
| Nov 14, 8:19 PM EST | Severe Thunderstorm Warning | LMK | Clark, Jefferson, Scott | 26 min |
| Nov 14, 8:21 PM EST | Severe Thunderstorm Warning | LMK | Clark, Crawford, Floyd, Harrison, Perry, Washington | 24 min |
| Nov 14, 8:32 PM EST | Severe Thunderstorm Warning | LMK | Ohio | 28 min |
| Nov 14, 8:42 PM EST | Severe Thunderstorm Warning | LMK | Clark, Floyd, Harrison | 33 min |
| Nov 14, 8:59 PM EST | Severe Thunderstorm Warning | ILN | Ohio, Switzerland | 46 min |
| Nov 14, 8:59 PM EST | Severe Thunderstorm Warning | LMK | Breckinridge, Bullitt, Hardin, Meade | 31 min |
| Nov 14, 9:06 PM EST | Severe Thunderstorm Warning | LMK | Bullitt, Henry, Jefferson, Oldham, Shelby, Spencer | 24 min |
| Nov 14, 9:29 PM EST | Severe Thunderstorm Warning | ILN | Bracken, Campbell, Pendleton | 31 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, 0.8 hours before the alert went out and 194 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
- 301 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 906 m above ground
- 0-6 km bulk shear
- 81 kt
- 0-1 km storm-relative helicity
- 548 m²/s²
- 0-3 km storm-relative helicity
- 582 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 1.9
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 14, 10:00 PM EST | Mesoscale Discussion | SPC | Anderson, Bath, Bourbon, Bracken, Bullitt, Campbell and 31 more | 60 min |
| Nov 14, 8:41 PM EST | Mesoscale Discussion | SPC | Belmont, Carroll, Columbiana, Coshocton, Fairfield, Franklin and 13 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Kentucky, 2011Severe Thunderstorm Watches in Indiana, 2011Severe Thunderstorm Watches in Ohio, 2011Every severe thunderstorm watch in 2011
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.