Alert archive / Tennessee / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 21, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Feb 6, 2008, 7:52 AM EST for 6 counties in Tennessee. It was in force for 38 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Feb 6, 2008, 7:52 AM EST (12:52 UTC)
- Expired
- Feb 6, 2008, 8:30 AM EST
- In force
- 38 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
Counties Anderson County, TN, Blount County, TN, Knox County, TN, Loudon County, TN, Roane County, TN, Union County, TN
The radar
The Knoxville radar (KMRX), 59 km from the middle of the area, began a volume at 12:54 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 6, 8:10 AM EST | TSTM WND DMG | Knoxville, TN | FEW TREES AND A POWER POLE DOWN IN WEST KNOX COUNTY. REPORTED BY DISPATCH |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 6, 5:06 AM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 0.9 hours before the alert went out and 229 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
- 675 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- -77 m²/s²
- 0-3 km storm-relative helicity
- 221 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KMRX 061252
SVRMRX
TNC001-009-093-105-145-173-061330-
/O.NEW.KMRX.SV.W.0021.080206T1252Z-080206T1330Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
752 AM EST WED FEB 6 2008
THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
ANDERSON COUNTY IN EAST TENNESSEE...
THIS INCLUDES THE CITY OF CLINTON...
BLOUNT COUNTY IN EAST TENNESSEE...
KNOX COUNTY IN EAST TENNESSEE...
THIS INCLUDES THE CITY OF KNOXVILLE...
LOUDON COUNTY IN EAST TENNESSEE...
THIS INCLUDES THE CITIES OF...LOUDON...LENOIR CITY...
ROANE COUNTY IN EAST TENNESSEE...
THIS INCLUDES THE CITY OF OAK RIDGE...
UNION COUNTY IN EAST TENNESSEE...
THIS INCLUDES THE CITY OF MAYNARDVILLE...
* UNTIL 830 AM EST
* AT 749 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 10 MILES NORTHWEST OF CLINTON TO OAK RIDGE TO 7 MILES
SOUTHWEST OF LOUDON...OR ALONG A LINE EXTENDING FROM 10 MILES
NORTHWEST OF CLINTON TO OAK RIDGE TO 6 MILES NORTH OF SWEETWATER...
AND MOVING EAST AT 45 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
LENOIR CITY BY 800 AM EST...
FARRAGUT AND CLINTON BY 805 AM EST...
KNOXVILLE BY 820 AM EST...
MAYNARDVILLE BY 825 AM EST...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES PRIMARY KILLERS. REMEMBER...
IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 AM EST WEDNESDAY MORNING
FOR CENTRAL TENNESSEE.
LAT...LON 3613 8371 3588 8379 3566 8451 3595 8436
3620 8428 3618 8423 3623 8422 3624 8420
3622 8408 3628 8404 3628 8398 3630 8397
3636 8369
TIME...MOT...LOC 1252Z 254DEG 41KT 3620 8422 3598 8430
3570 8444
$$
TG1 follow-up statement
000
WWUS54 KMRX 061318
SVSMRX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
818 AM EST WED FEB 6 2008
TNC001-145-061328-
/O.CAN.KMRX.SV.W.0021.000000T0000Z-080206T1330Z/
ROANE TN-ANDERSON TN-
818 AM EST WED FEB 6 2008
...THE SEVERE THUNDERSTORM WARNING FOR ANDERSON AND EASTERN ROANE
COUNTIES IS CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 AM EST WEDNESDAY MORNING
FOR CENTRAL TENNESSEE.
LAT...LON 3620 8370 3619 8373 3613 8371 3588 8379
3566 8451 3589 8420 3604 8406 3611 8405
3619 8395 3624 8399 3627 8398 3627 8400
3630 8397 3636 8370
TIME...MOT...LOC 1318Z 254DEG 41KT 3628 8386 3606 8395
3578 8409
$$
TNC009-093-105-173-061330-
/O.CON.KMRX.SV.W.0021.000000T0000Z-080206T1330Z/
LOUDON TN-UNION TN-KNOX TN-BLOUNT TN-
818 AM EST WED FEB 6 2008
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 AM EST
FOR NORTHWESTERN BLOUNT...KNOX...SOUTHERN UNION AND CENTRAL LOUDON
COUNTIES...
AT 814 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NORRIS LAKE TO POWELL TO 8 MILES EAST OF LENOIR
CITY...OR ALONG A LINE EXTENDING FROM 6 MILES WEST OF MAYNARDVILLE TO
6 MILES NORTHWEST OF KNOXVILLE TO 8 MILES EAST OF LENOIR CITY...
MOVING EAST AT 45 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
ROSE HILL...MAYNARDVILLE AND MALONEYVILLE BY 825 AM EST...
LAKE FOREST...MASCOT AND LUTTRELL BY 830 AM EST...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 AM EST WEDNESDAY MORNING
FOR CENTRAL TENNESSEE.
LAT...LON 3620 8370 3619 8373 3613 8371 3588 8379
3566 8451 3589 8420 3604 8406 3611 8405
3619 8395 3624 8399 3627 8398 3627 8400
3630 8397 3636 8370
TIME...MOT...LOC 1318Z 254DEG 41KT 3628 8386 3606 8395
3578 8409
$$The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 6, 2:41 AM EST | High Wind Warning | MRX | Blount, Carter, Cocke, Greene, Johnson, Monroe and 3 more | 16 hr |
| Feb 6, 5:56 AM EST | Severe Thunderstorm Warning | MRX | Campbell, Morgan, Scott | 49 min |
| Feb 6, 6:05 AM EST | Tornado Warning | MRX | Marion | 55 min |
| Feb 6, 6:17 AM EST | Severe Thunderstorm Warning | MRX | Bledsoe, Sequatchie | 58 min |
| Feb 6, 6:37 AM EST | Tornado Warning | MRX | Hamilton | 38 min |
| Feb 6, 6:55 AM EST | Severe Thunderstorm Warning | MRX | Meigs, Rhea | 50 min |
| Feb 6, 6:57 AM EST | Severe Thunderstorm Warning | MRX | Anderson, Campbell, Morgan, Scott | 48 min |
| Feb 6, 7:14 AM EST | Severe Thunderstorm Warning | MRX | Bradley, Hamilton | 46 min |
| Feb 6, 7:18 AM EST | Tornado Warning | MRX | Bradley, Hamilton | 57 min |
| Feb 6, 7:44 AM EST | Severe Thunderstorm Warning | MRX | McMinn, Polk | 46 min |
| Feb 6, 7:58 AM EST | Severe Thunderstorm Warning | MRX | Monroe | 47 min |
| Feb 6, 8:11 AM EST | Areal Flood Advisory | MRX | Bradley, Hamilton | 2 hr |
| Feb 6, 8:12 AM EST | Severe Thunderstorm Warning | MRX | Blount, Loudon | 48 min |
| Feb 6, 1:45 PM EST | Severe Thunderstorm Warning | MRX | Hawkins, Sullivan | 45 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2008Every severe thunderstorm warning in 2008
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.