Alert archive / Kentucky / Severe Thunderstorm Watches in 2017
Severe Thunderstorm Watch 55
The Storm Prediction Center issued this severe thunderstorm watch at Mar 1, 2017, 7:47 AM EST for 4 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 1, 2017, 7:47 AM EST (12:47 UTC)
- Expired
- Mar 1, 2017, 1:00 PM EST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 65 kt
All 81 counties
Bath County, KY, Bell County, KY, Breathitt County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Fleming County, KY, Floyd 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, Anderson County, TN, Bledsoe County, TN, Blount County, TN, Campbell County, TN, Carter County, TN, Claiborne County, TN, Cocke County, TN, Grainger County, TN, Greene County, TN, Hamblen County, TN, Hancock County, TN, Hawkins County, TN, Jefferson County, TN, Johnson County, TN, Knox County, TN, Loudon County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Morgan County, TN, Rhea County, TN, Roane County, TN, Scott County, TN, Sequatchie County, TN, Sevier County, TN, Sullivan County, TN, Unicoi County, TN, Union County, TN, Washington County, TN, Buchanan County, VA, City of Bristol, VA, City of Norton, VA, Dickenson County, VA, Lee County, VA, Russell County, VA, Scott County, VA, Washington County, VA, Wise County, VA, Boone County, WV, Fayette County, WV, Lincoln County, WV, Logan County, WV, McDowell County, WV, Mingo County, WV, Raleigh County, WV, Wayne County, WV, Wyoming County, WV
The radar
The Jackson,KY radar (KJKL), 56 km from the middle of the area, began a volume at 12:50 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
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 90%
- One or more gusts of 65 knots or more
- 40%
- 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
- 95%
Warnings issued inside it
24 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 1, 8:14 AM EST | Severe Thunderstorm Warning | JKL | Bath, Fleming, Montgomery, Rowan | 31 min |
| Mar 1, 8:23 AM EST | Severe Thunderstorm Warning | JKL | Estill, Jackson, Lee, Menifee, Montgomery, Powell and 2 more | 52 min |
| Mar 1, 8:35 AM EST | Severe Thunderstorm Warning | RLX | Boyd, Carter, Greenup, Lawrence | 25 min |
| Mar 1, 8:36 AM EST | Severe Thunderstorm Warning | JKL | Bath, Elliott, Menifee, Morgan, Rowan | 39 min |
| Mar 1, 8:40 AM EST | Severe Thunderstorm Warning | JKL | Jackson, Laurel, Pulaski, Rockcastle, Wayne | 50 min |
| Mar 1, 8:54 AM EST | Severe Thunderstorm Warning | JKL | Breathitt, Clay, Jackson, Johnson, Lee, Magoffin and 4 more | 51 min |
| Mar 1, 9:01 AM EST | Severe Thunderstorm Warning | RLX | Boyd, Carter, Greenup, Lawrence | 44 min |
| Mar 1, 9:07 AM EST | Tornado Warning | JKL | Breathitt, Magoffin | 38 min |
| Mar 1, 9:21 AM EST | Severe Thunderstorm Warning | JKL | Clay, Knox, Laurel, McCreary, Pulaski, Wayne and 1 more | 39 min |
| Mar 1, 9:25 AM EST | Severe Thunderstorm Warning | JKL | Breathitt, Clay, Floyd, Harlan, Johnson, Knott and 6 more | 65 min |
| Mar 1, 9:26 AM EST | Severe Thunderstorm Warning | RLX | Lawrence | 49 min |
| Mar 1, 9:37 AM EST | Severe Thunderstorm Warning | MRX | Anderson, Campbell, Morgan, Roane, Scott | 53 min |
| Mar 1, 9:48 AM EST | Severe Thunderstorm Warning | RLX | Boone, Fayette, Kanawha, Lincoln, Logan, Mingo and 2 more | 27 min |
| Mar 1, 9:52 AM EST | Severe Thunderstorm Warning | JKL | Bell, Harlan, Leslie | 53 min |
| Mar 1, 10:03 AM EST | Severe Thunderstorm Warning | JKL | Knox, McCreary, Whitley | 42 min |
| Mar 1, 10:07 AM EST | Severe Thunderstorm Warning | RLX | Buchanan | 23 min |
| Mar 1, 10:16 AM EST | Severe Thunderstorm Warning | RLX | Braxton, Calhoun, Clay, Fayette, Kanawha, Nicholas and 2 more | 29 min |
| Mar 1, 10:18 AM EST | Severe Thunderstorm Warning | RLX | Boone, Fayette, Kanawha, Logan, Mingo, Nicholas and 2 more | 27 min |
| Mar 1, 10:28 AM EST | Severe Thunderstorm Warning | RLX | Buchanan | 32 min |
| Mar 1, 10:30 AM EST | Severe Thunderstorm Warning | MRX | Anderson, Campbell, Claiborne, Grainger, Knox, Roane and 1 more | 45 min |
| Mar 1, 10:44 AM EST | Severe Thunderstorm Warning | RLX | Fayette, Nicholas, Pocahontas, Raleigh, Randolph, Webster and 1 more | 31 min |
| Mar 1, 11:06 AM EST | Severe Thunderstorm Warning | MRX | Campbell, Claiborne, Hancock, Hawkins | 54 min |
| Mar 1, 11:10 AM EST | Severe Thunderstorm Warning | MRX | Hancock, Hawkins, Sullivan | 65 min |
| Mar 1, 12:21 PM EST | Severe Thunderstorm Warning | MRX | Johnson, Sullivan | 24 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, 0.8 hours before the alert went out and 262 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
- 777 m above ground
- 0-6 km bulk shear
- 96 kt
- 0-1 km storm-relative helicity
- -229 m²/s²
- 0-3 km storm-relative helicity
- 525 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 8:46 PM EST | Mesoscale Discussion | SPC | Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 15 more | 119 min |
| Feb 28, 9:29 PM EST | Tornado Watch | SPC | Anderson, Ballard, Bourbon, Breckinridge, Bullitt, Butler and 49 more | 12 hr |
| Feb 28, 11:03 PM EST | Mesoscale Discussion | SPC | Boone, Bracken, Campbell, Gallatin, Kenton, Pendleton | 117 min |
| Feb 28, 11:29 PM EST | Tornado Watch | SPC | Boone, Bracken, Campbell, Carroll, Gallatin, Grant and 6 more | 8 hr |
| Mar 1, 2:32 AM EST | Mesoscale Discussion | SPC | Adair, Anderson, Bath, Boone, Bourbon, Boyd and 69 more | 88 min |
| Mar 1, 3:09 AM EST | Mesoscale Discussion | SPC | Ballard, Caldwell, Calloway, Carlisle, Crittenden, Fulton and 6 more | 2 hr |
| Mar 1, 4:03 AM EST | Tornado Watch | SPC | Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more | 5 hr |
| Mar 1, 5:19 AM EST | Mesoscale Discussion | SPC | Adair, Allen, Ballard, Barren, Boyle, Breckinridge and 53 more | 56 min |
| Mar 1, 5:57 AM EST | Tornado Watch | SPC | Adair, Allen, Anderson, Barren, Boone, Bourbon and 55 more | 5 hr |
| Mar 1, 6:28 AM EST | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Bath, Bell and 88 more | 2 hr |
| Mar 1, 6:48 AM EST | Severe Thunderstorm Watch | SPC | Boyd, Carter, Greenup | 5 hr |
| Mar 1, 8:28 AM EST | Mesoscale Discussion | SPC | Bell, Boyd, Breathitt, Carter, Clay, Clinton and 32 more | 92 min |
| Mar 1, 3:56 PM EST | Mesoscale Discussion | SPC | Boyd, Breathitt, Carter, Elliott, Floyd, Greenup and 8 more | 2 hr |
| Mar 1, 9:44 AM EST | Mesoscale Discussion | SPC | Alamance, Alleghany, Ashe, Caswell, Forsyth, Granville and 8 more | 91 min |
| Mar 1, 10:38 AM EST | Severe Thunderstorm Watch | SPC | Alleghany, Ashe, Caswell, Rockingham, Stokes, Surry and 3 more | 4 hr |
| Mar 1, 12:25 PM EST | Mesoscale Discussion | SPC | Alleghany, Rockingham, Stokes, Surry | 65 min |
| Mar 1, 12:48 PM EST | Tornado Watch | SPC | Cherokee, Clay | 6 hr |
| Mar 1, 12:50 PM EST | Mesoscale Discussion | SPC | Gates, Granville, Halifax, Hertford, Northampton, Vance and 1 more | 55 min |
| Mar 1, 2:07 PM EST | Mesoscale Discussion | SPC | Alexander, Buncombe, Burke, Cabarrus, Catawba, Cleveland and 16 more | 113 min |
| Mar 1, 3:02 PM EST | Severe Thunderstorm Watch | SPC | Alamance, Alexander, Anson, Avery, Buncombe, Burke and 43 more | 7 hr |
| Mar 1, 6:21 PM EST | Mesoscale Discussion | SPC | Alamance, Anson, Beaufort, Bertie, Bladen, Cabarrus and 40 more | 114 min |
| Mar 1, 11:08 AM EST | Mesoscale Discussion | SPC | Bedford, Bradley, Coffee, Franklin, Giles, Grundy and 11 more | 2 hr |
| Mar 1, 3:11 PM EST | Mesoscale Discussion | SPC | Bradley, McMinn, Polk | 2 hr |
| Mar 1, 1:13 PM EST | Severe Thunderstorm Watch | SPC | Accomack, Amelia, Caroline, Charles City, Chesterfield, Cumberland and 29 more | 4 hr |
| Mar 1, 2:50 PM EST | Mesoscale Discussion | SPC | Accomack, Charles City, Chesterfield, Gloucester, Henrico, James City and 16 more | 55 min |
| Mar 1, 2:19 AM EST | Mesoscale Discussion | SPC | Brooke, Hancock, Ohio | 86 min |
Nearby
Severe Thunderstorm Watches in Kentucky, 2017Severe Thunderstorm Watches in Tennessee, 2017Severe Thunderstorm Watches in Virginia, 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.