Alert archive / Kentucky / Severe Thunderstorm Watches in 1997
Severe Thunderstorm Watch 61
The Storm Prediction Center issued this severe thunderstorm watch at Feb 21, 1997, 11:15 AM EST for 5 states. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 21, 1997, 11:15 AM EST (16:15 UTC)
- Expired
- Feb 21, 1997, 3:00 PM EST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 66 counties
Bath County, KY, Bell County, KY, Breathitt County, KY, Clay County, KY, Elliott County, KY, Estill 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, Menifee County, KY, Montgomery County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Rowan County, KY, Whitley County, KY, Wolfe County, KY, Buncombe County, NC, Cherokee County, NC, Clay County, NC, Graham County, NC, Haywood County, NC, Jackson County, NC, Macon County, NC, Madison County, NC, Swain County, NC, Transylvania County, NC, Anderson County, TN, Blount County, TN, Campbell 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, Knox County, TN, Loudon County, TN, Monroe County, TN, Polk County, TN, Sevier County, TN, Unicoi County, TN, Union County, TN, Washington County, TN, City of Norton, VA, Dickenson County, VA, Lee County, VA, Scott County, VA, Wise County, VA, Lincoln County, WV, Mingo County, WV, Wayne County, WV
The radar
The Knoxville radar (KMRX), 21 km from the middle of the area, began a volume at 16:19 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.
Warnings issued inside it
15 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 11:21 AM EST | Severe Thunderstorm Warning | JKL | Jackson | 44 min |
| Feb 21, 11:27 AM EST | Severe Thunderstorm Warning | MRX | Claiborne, Knox, Union | 63 min |
| Feb 21, 11:36 AM EST | Severe Thunderstorm Warning | JKL | Bell, Knox | 34 min |
| Feb 21, 11:50 AM EST | Severe Thunderstorm Warning | MRX | Loudon | 55 min |
| Feb 21, 12:01 PM EST | Severe Thunderstorm Warning | MRX | Blount | 59 min |
| Feb 21, 12:09 PM EST | Severe Thunderstorm Warning | MRX | Jefferson, Sevier | 66 min |
| Feb 21, 12:09 PM EST | Severe Thunderstorm Warning | MRX | Grainger | 66 min |
| Feb 21, 12:16 PM EST | Severe Thunderstorm Warning | JKL | Breathitt, Morgan, Wolfe | 34 min |
| Feb 21, 12:25 PM EST | Severe Thunderstorm Warning | MRX | Hamblen | 65 min |
| Feb 21, 12:25 PM EST | Severe Thunderstorm Warning | MRX | Hancock | 65 min |
| Feb 21, 12:31 PM EST | Severe Thunderstorm Warning | JKL | Knott, Perry | 34 min |
| Feb 21, 12:31 PM EST | Severe Thunderstorm Warning | JKL | Magoffin | 34 min |
| Feb 21, 12:50 PM EST | Severe Thunderstorm Warning | MRX | Cocke, Greene | 55 min |
| Feb 21, 12:52 PM EST | Severe Thunderstorm Warning | MRX | Hawkins | 68 min |
| Feb 21, 1:05 PM EST | Severe Thunderstorm Warning | MRX | Scott | 55 min |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 4.3 hours before the alert went out and 275 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
- 133 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 825 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 392 m²/s²
- 0-3 km storm-relative helicity
- 598 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.7
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 8:30 AM EST | Severe Thunderstorm Watch | SPC | Adair, Allen, Anderson, Barren, Bourbon, Boyle and 38 more | 5 hr |
| Feb 21, 9:00 AM EST | Severe Thunderstorm Watch | SPC | Boone, Bourbon, Bracken, Campbell, Carroll, Franklin and 15 more | 4 hr |
| Feb 21, 5:00 PM EST | Severe Thunderstorm Watch | SPC | Union | 6 hr |
| Feb 21, 5:30 PM EST | Severe Thunderstorm Watch | SPC | Alexander, Anson, Cabarrus, Catawba, Chatham, Davidson and 18 more | 5 hr |
| Feb 21, 12:00 AM EST | Tornado Watch | SPC | Crockett, Dyer, Fayette, Haywood, Lake, Lauderdale and 3 more | 6 hr |
| Feb 21, 5:45 AM EST | Tornado Watch | SPC | Chester, Decatur, Giles, Hardin, Henderson, Lawrence and 8 more | 6 hr |
| Feb 21, 8:00 AM EST | Tornado Watch | SPC | Anderson, Bedford, Bledsoe, Bradley, Campbell, Cannon and 40 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Kentucky, 1997Severe Thunderstorm Watches in Tennessee, 1997Severe Thunderstorm Watches in North Carolina, 1997Every severe thunderstorm watch in 1997
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.