Alert archive / Tennessee / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 508
The Storm Prediction Center issued this severe thunderstorm watch at Jul 4, 2001, 4:30 PM EDT for 16 counties in North Carolina; 34 counties in Tennessee. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 4, 2001, 4:30 PM EDT (20:30 UTC)
- Expired
- Jul 4, 2001, 10:00 PM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 50 counties
Buncombe County, NC, Burke County, NC, Caldwell County, NC, Cherokee County, NC, Clay County, NC, Graham County, NC, Haywood County, NC, Henderson County, NC, Jackson County, NC, Macon County, NC, Madison County, NC, McDowell County, NC, Polk County, NC, Swain County, NC, Transylvania County, NC, Yancey County, NC, Bedford County, TN, Bledsoe County, TN, Blount County, TN, Bradley County, TN, Cannon County, TN, Cocke County, TN, Coffee County, TN, Cumberland County, TN, Franklin County, TN, Giles County, TN, Grundy County, TN, Hamilton County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Loudon County, TN, Marion County, TN, Marshall County, TN, Maury County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Moore County, TN, Polk County, TN, Rhea County, TN, Roane County, TN, Rutherford County, TN, Sequatchie County, TN, Sevier County, TN, Van Buren County, TN, Warren County, TN, Wayne County, TN, White County, TN, Williamson County, TN
Warnings issued inside it
14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 4:37 PM EDT | Severe Thunderstorm Warning | OHX | DeKalb, White | 23 min |
| Jul 4, 4:55 PM EDT | Severe Thunderstorm Warning | MRX | Cocke, Greene | 65 min |
| Jul 4, 4:55 PM EDT | Severe Thunderstorm Warning | MRX | Blount, Sevier | 65 min |
| Jul 4, 5:07 PM EDT | Severe Thunderstorm Warning | OHX | Coffee | 23 min |
| Jul 4, 5:19 PM EDT | Severe Thunderstorm Warning | MRX | Loudon, Meigs, Rhea, Roane | 41 min |
| Jul 4, 5:19 PM EDT | Severe Thunderstorm Warning | MRX | Bledsoe | 41 min |
| Jul 4, 5:32 PM EDT | Severe Thunderstorm Warning | MRX | McMinn, Monroe | 58 min |
| Jul 4, 5:32 PM EDT | Severe Thunderstorm Warning | OHX | Grundy | 13 min |
| Jul 4, 5:38 PM EDT | Severe Thunderstorm Warning | MRX | Hamilton, Marion, Sequatchie | 67 min |
| Jul 4, 5:42 PM EDT | Severe Thunderstorm Warning | OHX | Bedford | 33 min |
| Jul 4, 5:44 PM EDT | Severe Thunderstorm Warning | OHX | Giles | 16 min |
| Jul 4, 6:07 PM EDT | Severe Thunderstorm Warning | MRX | Bradley | 53 min |
| Jul 4, 6:24 PM EDT | Severe Thunderstorm Warning | MRX | Cherokee, Clay | 66 min |
| Jul 4, 6:24 PM EDT | Severe Thunderstorm Warning | MRX | Polk | 66 min |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 8.5 hours before the alert went out and 129 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
- 1372 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 682 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 5.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 1:45 PM EDT | Severe Thunderstorm Watch | SPC | Alleghany, Ashe, Avery, Caldwell, Mitchell, Watauga and 1 more | 5 hr |
| Jul 4, 1:45 PM EDT | Severe Thunderstorm Watch | SPC | Alleghany, Ashe, Avery, Caldwell, Mitchell, Watauga and 1 more | 5 hr |
| Jul 4, 7:30 PM EDT | Severe Thunderstorm Watch | SPC | Anson, Cabarrus, Cleveland, Gaston, Harnett, Lee and 8 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Tennessee, 2001Severe Thunderstorm Watches in North Carolina, 2001Every severe thunderstorm watch in 2001
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.