Alert archive / Kentucky / Severe Thunderstorm Watches in 2017
Severe Thunderstorm Watch 404
The Storm Prediction Center issued this severe thunderstorm watch at Jul 7, 2017, 4:24 PM EDT for 14 counties in Indiana; 33 counties in Kentucky; 15 counties in Ohio. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 7, 2017, 4:24 PM EDT (20:24 UTC)
- Expired
- Jul 7, 2017, 11:00 PM EDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 65 kt
All 62 counties
Clark County, IN, Dearborn County, IN, Fayette County, IN, Floyd County, IN, Franklin County, IN, Harrison County, IN, Jefferson County, IN, Ohio County, IN, Ripley County, IN, Scott County, IN, Switzerland County, IN, Union County, IN, Washington County, IN, Wayne County, IN, Anderson County, KY, Bath County, KY, Boone County, KY, Bourbon County, KY, Bracken County, KY, Bullitt County, KY, Campbell County, KY, Carroll County, KY, Clark County, KY, Fayette County, KY, Fleming County, KY, Franklin County, KY, Gallatin County, KY, Grant County, KY, Harrison County, KY, Henry County, KY, Jefferson County, KY, Jessamine County, KY, Kenton County, KY, Lewis County, KY, Mason County, KY, Montgomery County, KY, Nicholas County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Robertson County, KY, Rowan County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Trimble County, KY, Woodford County, KY, Adams County, OH, Brown County, OH, Butler County, OH, Clermont County, OH, Clinton County, OH, Fayette County, OH, Greene County, OH, Hamilton County, OH, Highland County, OH, Montgomery County, OH, Pike County, OH, Preble County, OH, Ross County, OH, Scioto County, OH, Warren County, OH
The radar
The Cincinnati radar (KILN), 111 km from the middle of the area, began a volume at 20:23 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
- 2%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
19 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 4:45 PM EDT | Severe Thunderstorm Warning | ILN | Union, Wayne | 45 min |
| Jul 7, 5:18 PM EDT | Tornado Warning | ILN | Butler, Montgomery, Preble | 27 min |
| Jul 7, 5:28 PM EDT | Severe Thunderstorm Warning | ILN | Franklin, Union | 32 min |
| Jul 7, 5:38 PM EDT | Severe Thunderstorm Warning | ILN | Butler, Montgomery, Preble, Warren | 52 min |
| Jul 7, 5:52 PM EDT | Severe Thunderstorm Warning | ILN | Butler, Hamilton, Warren | 38 min |
| Jul 7, 6:02 PM EDT | Severe Thunderstorm Warning | ILN | Butler, Hamilton | 43 min |
| Jul 7, 6:14 PM EDT | Severe Thunderstorm Warning | ILN | Brown, Clermont, Clinton, Hamilton, Highland, Warren | 46 min |
| Jul 7, 6:20 PM EDT | Severe Thunderstorm Warning | ILN | Campbell, Kenton | 40 min |
| Jul 7, 6:35 PM EDT | Severe Thunderstorm Warning | ILN | Adams, Brown, Highland, Pike, Ross, Scioto | 40 min |
| Jul 7, 6:57 PM EDT | Severe Thunderstorm Warning | LMK | Jefferson, Scott | 33 min |
| Jul 7, 7:11 PM EDT | Severe Thunderstorm Warning | ILN | Adams, Pike, Ross, Scioto | 34 min |
| Jul 7, 7:28 PM EDT | Severe Thunderstorm Warning | LMK | Clark, Jefferson, Scott | 47 min |
| Jul 7, 7:42 PM EDT | Severe Thunderstorm Warning | ILN | Lewis | 33 min |
| Jul 7, 7:49 PM EDT | Severe Thunderstorm Warning | LMK | Clark, Floyd, Scott, Washington | 41 min |
| Jul 7, 8:30 PM EDT | Severe Thunderstorm Warning | LMK | Clark, Floyd | 30 min |
| Jul 7, 8:36 PM EDT | Severe Thunderstorm Warning | LMK | Orange, Washington | 39 min |
| Jul 7, 9:06 PM EDT | Severe Thunderstorm Warning | LMK | Clark, Crawford, Floyd, Harrison, Orange, Washington | 24 min |
| Jul 7, 9:31 PM EDT | Severe Thunderstorm Warning | LMK | Floyd, Harrison | 29 min |
| Jul 7, 10:09 PM EDT | Severe Thunderstorm Warning | LMK | Crawford, Harrison, Perry | 23 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 12:00Z, 8.4 hours before the alert went out and 113 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
- 678 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 863 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 171 m²/s²
- 0-3 km storm-relative helicity
- 169 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 3.8
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 8:51 AM EDT | Mesoscale Discussion | SPC | Adams, Allen, Blackford, Boone, Carroll, Cass and 25 more | 114 min |
| Jul 7, 9:46 AM EDT | Severe Thunderstorm Watch | SPC | Adams, Allen, Blackford, Cass, DeKalb, Delaware and 20 more | 7 hr |
| Jul 7, 11:22 AM EDT | Mesoscale Discussion | SPC | Adams, Allen, Blackford, Cass, DeKalb, Delaware and 17 more | 53 min |
| Jul 7, 1:19 PM EDT | Mesoscale Discussion | SPC | Benton, Boone, Carroll, Clay, Clinton, Daviess and 23 more | 56 min |
| Jul 7, 1:45 PM EDT | Severe Thunderstorm Watch | SPC | Bartholomew, Benton, Boone, Brown, Carroll, Clay and 32 more | 7 hr |
| Jul 7, 3:54 PM EDT | Mesoscale Discussion | SPC | Bartholomew, Brown, Clark, Dearborn, Decatur, Fayette and 19 more | 96 min |
| Jul 7, 6:34 PM EDT | Mesoscale Discussion | SPC | Clark, Floyd, Jackson, Jefferson, Jennings, Lawrence and 6 more | 86 min |
| Jul 7, 1:27 PM EDT | Severe Thunderstorm Watch | SPC | Boyd, Carter, Greenup, Lawrence | 8 hr |
| Jul 7, 8:02 AM EDT | Mesoscale Discussion | SPC | Belmont, Carroll, Columbiana, Coshocton, Geauga, Guernsey and 11 more | 2 hr |
| Jul 7, 1:07 PM EDT | Mesoscale Discussion | SPC | Athens, Belmont, Gallia, Guernsey, Jackson, Lawrence and 11 more | 53 min |
| Jul 7, 3:35 PM EDT | Mesoscale Discussion | SPC | Athens, Belmont, Gallia, Meigs, Monroe, Morgan and 3 more | 85 min |
Nearby
Severe Thunderstorm Watches in Kentucky, 2017Severe Thunderstorm Watches in Ohio, 2017Severe Thunderstorm Watches in Indiana, 2017Every severe thunderstorm watch in 2017
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.