Alert archive / Kentucky / Severe Thunderstorm Watches in 2015
Severe Thunderstorm Watch 53
The Storm Prediction Center issued this severe thunderstorm watch at Apr 10, 2015, 4:09 AM EDT for 4 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 10, 2015, 4:09 AM EDT (08:09 UTC)
- Expired
- Apr 10, 2015, 9:03 AM EDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 101 counties
Bath County, KY, Bell County, KY, Boyd County, KY, Breathitt County, KY, Carter County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Fleming County, KY, Floyd County, KY, Greenup County, KY, Harlan County, KY, Jackson County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lawrence County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Magoffin County, KY, Martin County, KY, McCreary County, KY, Menifee County, KY, Montgomery County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Rowan County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Athens County, OH, Belmont County, OH, Carroll County, OH, Coshocton County, OH, Gallia County, OH, Guernsey County, OH, Harrison County, OH, Jackson County, OH, Lawrence County, OH, Meigs County, OH, Monroe County, OH, Morgan County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Tuscarawas County, OH, Vinton County, OH, Washington County, OH, Anderson County, TN, Bledsoe County, TN, Campbell County, TN, Cannon County, TN, Claiborne County, TN, Clay County, TN, Cumberland County, TN, DeKalb County, TN, Fentress County, TN, Jackson County, TN, Morgan County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Rhea County, TN, Roane County, TN, Scott County, TN, Union County, TN, Van Buren County, TN, Warren County, TN, White County, TN, Boone County, WV, Braxton County, WV, Cabell County, WV, Calhoun County, WV, Clay County, WV, Doddridge County, WV, Gilmer County, WV, Harrison County, WV, Jackson County, WV, Kanawha County, WV, Lewis County, WV, Lincoln County, WV, Logan County, WV, Marshall County, WV, Mason County, WV, Mingo County, WV, Pleasants County, WV, Putnam County, WV, Ritchie County, WV, Roane County, WV, Tyler County, WV, Wayne County, WV, Wetzel County, WV, Wirt County, WV, Wood County, WV
The radar
The Jackson,KY radar (KJKL), 50 km from the middle of the area, began a volume at 08:10 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
- 20%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 4:14 AM EDT | Flash Flood Warning | JKL | Bath, Fleming, Montgomery | 4 hr |
| Apr 10, 4:27 AM EDT | Severe Thunderstorm Warning | OHX | Clay, Jackson, Macon, Overton, Putnam, Smith and 1 more | 33 min |
| Apr 10, 4:35 AM EDT | Severe Thunderstorm Warning | OHX | Cannon, DeKalb, Putnam, Rutherford, Wilson | 25 min |
| Apr 10, 4:39 AM EDT | Flash Flood Warning | RLX | Athens, Jackson, Vinton | 3 hr |
| Apr 10, 4:54 AM EDT | Severe Thunderstorm Warning | OHX | Clay, Jackson, Overton, Pickett | 51 min |
| Apr 10, 4:57 AM EDT | Severe Thunderstorm Warning | OHX | DeKalb, Overton, Putnam, Smith | 48 min |
| Apr 10, 5:58 AM EDT | Flash Flood Warning | RLX | Athens, Gallia, Jackson, Meigs, Vinton, Washington | 3 hr |
| Apr 10, 6:00 AM EDT | Severe Thunderstorm Warning | MRX | Campbell, Morgan, Scott | 45 min |
| Apr 10, 6:32 AM EDT | Flash Flood Warning | RLX | Perry | 3 hr |
| Apr 10, 6:45 AM EDT | Severe Thunderstorm Warning | JKL | Breathitt, Clay, Knox, Laurel, Leslie, Owsley and 1 more | 45 min |
| Apr 10, 7:41 AM EDT | Flash Flood Warning | RLX | Athens, Washington | 3 hr |
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, 8.2 hours before the alert went out and 231 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
- 849 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 1308 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 252 m²/s²
- 0-3 km storm-relative helicity
- 283 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 11.8
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 9:01 PM EDT | Mesoscale Discussion | SPC | Ballard, Carlisle, McCracken, Union | 89 min |
| Apr 9, 11:56 PM EDT | Mesoscale Discussion | SPC | Ballard, Boone, Breckinridge, Caldwell, Campbell, Carroll and 21 more | 94 min |
| Apr 10, 1:37 AM EDT | Tornado Watch | SPC | Adair, Allen, Anderson, Barren, Boone, Bourbon and 58 more | 5 hr |
| Apr 10, 3:32 AM EDT | Mesoscale Discussion | SPC | Bath, Bell, Bourbon, Boyd, Breathitt, Carter and 44 more | 58 min |
| Apr 10, 6:16 AM EDT | Mesoscale Discussion | SPC | Bell, Boyd, Breathitt, Carter, Clay, Elliott and 17 more | 59 min |
| Apr 9, 8:02 PM EDT | Mesoscale Discussion | SPC | Athens, Fairfield, Fayette, Gallia, Hocking, Jackson and 8 more | 118 min |
| Apr 10, 2:54 AM EDT | Mesoscale Discussion | SPC | Defiance, Fulton, Henry, Williams | 66 min |
| Apr 9, 11:01 PM EDT | Mesoscale Discussion | SPC | Benton, Carroll, Chester, Crockett, Dyer, Fayette and 11 more | 119 min |
| Apr 10, 1:53 AM EDT | Mesoscale Discussion | SPC | Giles, Hardin, Lawrence, Lewis, McNairy, Wayne | 2 hr |
| Apr 10, 2:54 AM EDT | Mesoscale Discussion | SPC | Bedford, Bledsoe, Cannon, Cheatham, Clay, Coffee and 33 more | 96 min |
Nearby
Severe Thunderstorm Watches in Kentucky, 2015Severe Thunderstorm Watches in West Virginia, 2015Severe Thunderstorm Watches in Tennessee, 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.