Alert archive / Kentucky / Tornado Watches in 2020
Tornado Watch 93
The Storm Prediction Center issued this tornado watch at Apr 8, 2020, 10:51 PM EDT for 4 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 8, 2020, 10:51 PM EDT (02:51 UTC)
- Expired
- Apr 9, 2020, 3:23 AM EDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 69 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, Gallia County, OH, Jackson County, OH, Lawrence County, OH, Meigs County, OH, Vinton County, OH, Buchanan County, VA, Dickenson County, VA, Boone County, WV, Braxton County, WV, Cabell County, WV, Calhoun County, WV, Clay County, WV, Fayette County, WV, Gilmer County, WV, Jackson County, WV, Kanawha County, WV, Lincoln County, WV, Logan County, WV, Mason County, WV, McDowell County, WV, Mingo County, WV, Nicholas County, WV, Putnam County, WV, Raleigh County, WV, Ritchie County, WV, Roane County, WV, Wayne County, WV, Webster County, WV, Wirt County, WV, Wood County, WV, Wyoming County, WV
The radar
The Jackson,KY radar (KJKL), 11 km from the middle of the area, began a volume at 02:54 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
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 80%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
21 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 11:18 PM EDT | Severe Thunderstorm Warning | JKL | Bath, Elliott, Fleming, Menifee, Montgomery, Morgan and 1 more | 57 min |
| Apr 8, 11:19 PM EDT | Severe Thunderstorm Warning | RLX | Gallia, Jackson, Lawrence, Vinton | 26 min |
| Apr 8, 11:28 PM EDT | Tornado Warning | JKL | Fleming, Rowan | 32 min |
| Apr 8, 11:38 PM EDT | Severe Thunderstorm Warning | RLX | Jackson, Vinton | 52 min |
| Apr 8, 11:40 PM EDT | Severe Thunderstorm Warning | RLX | Gallia, Jackson, Meigs, Vinton | 50 min |
| Apr 8, 11:52 PM EDT | Severe Thunderstorm Warning | RLX | Boyd, Carter, Greenup | 53 min |
| Apr 9, 12:06 AM EDT | Severe Thunderstorm Warning | JKL | Bath, Elliott, Fleming, Menifee, Montgomery, Morgan and 1 more | 39 min |
| Apr 9, 12:21 AM EDT | Severe Thunderstorm Warning | JKL | Clay, Estill, Jackson, Laurel, Lee, Owsley and 2 more | 39 min |
| Apr 9, 12:24 AM EDT | Severe Thunderstorm Warning | RLX | Athens, Gallia, Jackson, Meigs, Vinton, Washington | 36 min |
| Apr 9, 12:28 AM EDT | Severe Thunderstorm Warning | RLX | Gallia | 32 min |
| Apr 9, 12:34 AM EDT | Severe Thunderstorm Warning | RLX | Boyd, Lawrence | 41 min |
| Apr 9, 12:41 AM EDT | Severe Thunderstorm Warning | RLX | Boone, Cabell, Clay, Fayette, Jackson, Kanawha and 4 more | 49 min |
| Apr 9, 12:54 AM EDT | Severe Thunderstorm Warning | RLX | Athens, Meigs, Washington | 51 min |
| Apr 9, 12:56 AM EDT | Severe Thunderstorm Warning | JKL | Breathitt, Clay, Estill, Jackson, Laurel, Lee and 2 more | 34 min |
| Apr 9, 1:18 AM EDT | Severe Thunderstorm Warning | JKL | Breathitt, Floyd, Knott, Letcher, Magoffin, Martin and 2 more | 42 min |
| Apr 9, 1:23 AM EDT | Severe Thunderstorm Warning | RLX | Boone, Braxton, Calhoun, Clay, Fayette, Gilmer and 7 more | 52 min |
| Apr 9, 1:36 AM EDT | Severe Thunderstorm Warning | RLX | Braxton, Calhoun, Doddridge, Gilmer, Lewis, Ritchie and 3 more | 39 min |
| Apr 9, 1:52 AM EDT | Severe Thunderstorm Warning | JKL | Floyd, Harlan, Knott, Leslie, Letcher, Perry and 1 more | 23 min |
| Apr 9, 2:04 AM EDT | Severe Thunderstorm Warning | RLX | Barbour, Braxton, Clay, Lewis, Nicholas, Pocahontas and 3 more | 56 min |
| Apr 9, 2:11 AM EDT | Severe Thunderstorm Warning | RLX | Fayette, Raleigh | 38 min |
| Apr 9, 2:14 AM EDT | Severe Thunderstorm Warning | JKL | Harlan, Letcher, Perry | 16 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, 2.9 hours before the alert went out and 207 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2413 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 295 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
164
WWUS20 KWNS 090247
SEL3
SPC WW 090247
KYZ000-OHZ000-VAZ000-WVZ000-090800-
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 93
NWS Storm Prediction Center Norman OK
1050 PM EDT Wed Apr 8 2020
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Eastern Kentucky
Southeast Ohio
Extreme Southwest Virginia
Central and Southern West Virginia
* Effective this Wednesday night and Thursday morning from 1050
PM until 400 AM EDT.
* Primary threats include...
A couple tornadoes possible
Widespread damaging wind gusts to 70 mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
SUMMARY...A fast-moving squall line over Kentucky and Ohio will race
across the watch area overnight, posing a risk of damaging winds and
some hail. A few storms in this area could also produce brief
tornadoes.
The tornado watch area is approximately along and 70 statute miles
east and west of a line from 35 miles south southeast of London KY
to 55 miles north of Charleston WV. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU3).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and severe thunderstorms in and close to the watch
area. Persons in these areas should be on the lookout for
threatening weather conditions and listen for later statements
and possible warnings.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 90...WW 91...WW 92...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 28035.
...HartSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 8:46 PM EDT | Mesoscale Discussion | SPC | Anderson, Ballard, Boone, Bourbon, Boyle, Bracken and 61 more | 119 min |
| Apr 8, 10:14 PM EDT | Mesoscale Discussion | SPC | Bath, Boyd, Breathitt, Carter, Clay, Elliott and 30 more | 3 hr |
| Apr 8, 11:16 PM EDT | Severe Thunderstorm Watch | SPC | Lee, Russell, Scott, Washington, Wise, City of Bristol and 1 more | 6 hr |
| Apr 9, 12:50 AM EDT | Mesoscale Discussion | SPC | Alleghany, Bath, Bland, Craig, Giles, Highland and 7 more | 115 min |
| Apr 9, 2:03 AM EDT | Severe Thunderstorm Watch | SPC | Albemarle, Alleghany, Amherst, Augusta, Bath, Bedford and 37 more | 3 hr |
| Apr 9, 3:36 AM EDT | Mesoscale Discussion | SPC | Albemarle, Alleghany, Amherst, Augusta, Bath, Bedford and 40 more | 84 min |
| Apr 9, 12:01 PM EDT | Severe Thunderstorm Watch | SPC | Arlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church | 4 hr |
Nearby
Tornado Watches in Kentucky, 2020Tornado Watches in West Virginia, 2020Tornado Watches in Ohio, 2020Every tornado watch in 2020
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.