Alert archive / Tennessee / Tornado Warnings in 2012
Tornado Warning 61, NWS Morristown, TN
NWS Morristown, TN issued this tornado warning at Aug 1, 2012, 8:47 PM EDT for Bradley County, Hamilton County, Tennessee. It was in force for 28 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
- Aug 1, 2012, 8:47 PM EDT (00:47 UTC)
- Expired
- Aug 1, 2012, 9:15 PM EDT
- In force
- 28 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
Counties Bradley County, TN, Hamilton County, TN
The radar
The Northeast Alabama radar (KHTX), 104 km from the middle of the area, began a volume at 00:49 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 |
|---|---|---|---|
| Aug 1, 8:53 PM EDT | HAIL 1.25 | Cleveland, TN |
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 |
|---|---|---|---|
| Aug 1, 3:40 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 0.8 hours before the alert went out and 187 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
- 2342 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 1658 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
942 WFUS54 KMRX 020047 TORMRX TNC011-065-020115- /O.NEW.KMRX.TO.W.0061.120802T0047Z-120802T0115Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MORRISTOWN TN 847 PM EDT WED AUG 1 2012 THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A * TORNADO WARNING FOR... BRADLEY COUNTY IN EAST TENNESSEE... HAMILTON COUNTY IN EAST TENNESSEE... * UNTIL 915 PM EDT * AT 844 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES SOUTHWEST OF CLEVELAND. DOPPLER RADAR SHOWED THIS TORNADO MOVING SOUTH AT 25 MPH. * THIS TORNADIC STORM WILL AFFECT MAINLY RURAL AREAS OF BRADLEY AND HAMILTON COUNTIES...INCLUDING THE FOLLOWING LOCATIONS FLINT SPRINGS. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT WEDNESDAY EVENING FOR CENTRAL TENNESSEE AND SOUTHWEST VIRGINIA. && LAT...LON 3518 8506 3521 8485 3498 8478 3498 8504 TIME...MOT...LOC 0047Z 350DEG 23KT 3510 8494 $$
3 follow-up statements
738 WWUS54 KMRX 020055 SVSMRX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 855 PM EDT WED AUG 1 2012 TNC011-065-020115- /O.CON.KMRX.TO.W.0061.000000T0000Z-120802T0115Z/ BRADLEY TN-HAMILTON TN- 855 PM EDT WED AUG 1 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM EDT FOR HAMILTON AND BRADLEY COUNTIES... AT 853 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR FLINT SPRINGS...OR 9 MILES SOUTHWEST OF CLEVELAND...MOVING SOUTH AT 25 MPH. LOCATIONS IN THE WARNING INCLUDE... FLINT SPRINGS. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT WEDNESDAY EVENING FOR CENTRAL TENNESSEE AND SOUTHWEST VIRGINIA. && LAT...LON 3518 8506 3521 8485 3498 8478 3498 8504 TIME...MOT...LOC 0055Z 350DEG 23KT 3505 8493 $$
093 WWUS54 KMRX 020110 SVSMRX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 910 PM EDT WED AUG 1 2012 TNC011-065-020115- /O.CON.KMRX.TO.W.0061.000000T0000Z-120802T0115Z/ BRADLEY TN-HAMILTON TN- 910 PM EDT WED AUG 1 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM EDT FOR HAMILTON AND BRADLEY COUNTIES... AT 906 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A WALL CLOUD NEAR APISON AND DOPPLER RADAR INDICATED THE TORNADIC SIGNATURE WAS IN THE SAME AREA...APPROXIMATELY 14 MILES SOUTH OF CLEVELAND...MOVING SOUTH AT 25 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT WEDNESDAY EVENING FOR CENTRAL TENNESSEE AND SOUTHWEST VIRGINIA. && LAT...LON 3518 8506 3521 8485 3498 8478 3498 8504 TIME...MOT...LOC 0109Z 350DEG 23KT 3499 8492 $$
684 WWUS54 KMRX 020117 SVSMRX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 917 PM EDT WED AUG 1 2012 TNC011-065-020126- /O.EXP.KMRX.TO.W.0061.000000T0000Z-120802T0115Z/ BRADLEY TN-HAMILTON TN- 917 PM EDT WED AUG 1 2012 ...THE TORNADO WARNING FOR HAMILTON AND BRADLEY COUNTIES HAS EXPIRED... THE STORM THAT PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. THEREFORE...THE WARNING HAS BEEN ALLOWED TO EXPIRE. OTHER...STRONG THUNDERSTORMS CONTINUE TO BUILD SOUTH ACROSS HAMILTON AND BRADLEY COUNTIES AT 15 TO 20 MPH. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT WEDNESDAY EVENING FOR CENTRAL TENNESSEE AND SOUTHWEST VIRGINIA. LAT...LON 3518 8506 3521 8485 3498 8478 3498 8504 TIME...MOT...LOC 0110Z 350DEG 23KT 3498 8492 $$
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 8:18 PM EDT | Areal Flood Advisory | MRX | Bradley, McMinn, Polk | 117 min |
| Aug 1, 8:28 PM EDT | Severe Thunderstorm Warning | MRX | Bradley, Hamilton, Polk | 32 min |
| Aug 1, 9:00 PM EDT | Flash Flood Warning | MRX | Bradley | 3 hr |
| Aug 1, 10:10 PM EDT | Severe Thunderstorm Warning | MRX | Marion, Sequatchie | 35 min |
Nearby
Tornado Warnings in Tennessee, 2012Every tornado warning in 2012Tornadoes in 2012
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.