Alert archive / Tennessee / Tornado Warnings in 2007
Tornado Warning 1, NWS Nashville, TN
NWS Nashville, TN issued this tornado warning at Apr 3, 2007, 3:44 PM CDT for Grundy County, Tennessee. It was in force for 31 min. 2 reports 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
- Apr 3, 2007, 3:44 PM CDT (20:44 UTC)
- Expired
- Apr 3, 2007, 4:15 PM CDT
- In force
- 31 min
- Issued by
- NWS Nashville, TN
- Area
- Counties, with a storm outline in the text
County Grundy County, TN
The radar
The Northeast Alabama radar (KHTX), 60 km from the middle of the area, began a volume at 20:46 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 |
|---|---|---|---|
| Apr 3, 3:58 PM CDT | HAIL 0.75 | Altamont, TN | |
| Apr 3, 4:00 PM CDT | HAIL 1.75 | Altamont, 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 |
|---|---|---|---|
| Apr 3, 2:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 8.7 hours before the alert went out and 118 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
- 13 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 1216 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS54 KOHX 032044 TOROHX TNC061-032115- /O.NEW.KOHX.TO.W.0001.070403T2044Z-070403T2115Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NASHVILLE TN 344 PM CDT TUE APR 3 2007 THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A * TORNADO WARNING FOR... GRUNDY COUNTY IN TENNESSEE... * UNTIL 415 PM CDT * AT 342 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR TRACY CITY...OR ABOUT 19 MILES SOUTHEAST OF MANCHESTER...MOVING NORTHEAST AT 40 MPH. * THE TORNADO WILL BE NEAR... GRUETLI-LAAGER BY 355 PM CDT... DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. CARS ARE EASILY TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF A TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO SAFE STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT AND COVER YOUR HEAD. LAT...LON 3536 8593 3520 8584 3535 8534 3556 8545 $$ 21
1 follow-up statement
000 WWUS54 KOHX 032100 SVSOHX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NASHVILLE TN 359 PM CDT TUE APR 3 2007 TNC061-032115- /O.CON.KOHX.TO.W.0001.000000T0000Z-070403T2115Z/ GRUNDY TN- 359 PM CDT TUE APR 3 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR GRUNDY COUNTY... AT 353 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR COALMONT...OR ABOUT 18 MILES WEST OF DUNLAP...MOVING NORTHEAST AT 40 MPH. THE TORNADO WILL BE IN... RURAL NORTHEASTERN GRUNDY COUNTY AT 410 PM CDT IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING GOLFBALL SIZE HAIL. LAT...LON 3536 8593 3520 8584 3538 8551 3553 8564 $$ 21
The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 3:29 PM CDT | Severe Thunderstorm Warning | OHX | Grundy | 46 min |
| Apr 3, 5:01 PM CDT | Severe Thunderstorm Warning | OHX | Cumberland | 39 min |
| Apr 3, 6:55 PM CDT | Severe Thunderstorm Warning | OHX | Stewart | 50 min |
Nearby
Tornado Warnings in Tennessee, 2007Every tornado warning in 2007Tornadoes in 2007
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.