Alert archive / Tennessee / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 113, NWS Nashville, TN

October 18, 200711 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Oct 18, 2007, 11:10 PM CDT for 11 counties in Tennessee. It was in force for 50 min. 7 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
Oct 18, 2007, 11:10 PM CDT (04:10 UTC)
Expired
Oct 19, 2007, 12:00 AM CDT
In force
50 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon

Counties Cheatham County, TN, Davidson County, TN, Hickman County, TN, Macon County, TN, Maury County, TN, Robertson County, TN, Rutherford County, TN, Sumner County, TN, Trousdale County, TN, Williamson County, TN, Wilson County, TN

The radar

The Nashville radar (KOHX), 23 km from the middle of the area, began a volume at 04:12 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

TimeReportWhereRemark
Oct 18, 11:10 PM CDTTSTM WND DMG5 Nw Franklin, TNTREES WERE BLOWN DOWN. A LARGE TREE LIMB FELL ON A HOUSE ON HIGH POINT RIDGE RD.
Oct 18, 11:35 PM CDTTSTM WND GST 73Nashville, TNDAVIDSON COUNTY OEM OFFICIAL REPORTED 73 MPH WIND GUST WITH HAND HELD ANEMOMETER AT I-65 AND HARDING RD.
Oct 18, 11:40 PM CDTTSTM WND DMGNashville, TNSEVERAL LARGE TREES WERE BLOWN DOWN AT THE CRIEVE HALL AREA OF NASHVILLE NEAR THE ELLINGTON AGRICULTURAL CENTER.
Oct 18, 11:55 PM CDTTSTM WND DMG10 E Nashville, TNTREES AND POWER LINES WERE DOWN IN HERMITAGE AT INTERSECTION OF TULIP GROVE ROAD AND OLD LEBANON DIRT RD.
Oct 18, 11:55 PM CDTTSTM WND DMG11 W Lebanon, TNTREES DOWN AT INTERSECTION OF BENDERS FERRY ROAD AND MAYS CHAPEL RD.
Oct 19, 12:05 AM CDTTSTM WND DMG11 Nw Murfreesboro, TNTREES AND POWER LINES DOWN AT 4900 POPLAR WOOD ROAD AT 1205 AM NORTHWEST OF MURFREESBORO AND AT ROCKDALE AT 1230 AM CDT.
Oct 19, 12:07 AM CDTTSTM WND GST 0Lebanon, TNWEMA REPORTED TREES AND POWER LINES DOWN IN THE WESTERN PART OF LEBANON.

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.

IssuedProductOfficeLasted
Oct 18, 10:27 PM CDTTornado WatchSPC4 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 4.2 hours before the alert went out and 15 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.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2007-10-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1487 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2007-10-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 259 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1487 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
778 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
259 m²/s²
0-3 km storm-relative helicity
337 m²/s²
Significant tornado parameter
2.8
Supercell composite
10.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KOHX 190412
SVROHX
TNC021-037-081-111-119-147-149-165-169-187-189-190500-
/O.NEW.KOHX.SV.W.0113.071019T0410Z-071019T0500Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
1110 PM CDT THU OCT 18 2007

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CHEATHAM COUNTY IN TENNESSEE...
  DAVIDSON COUNTY IN TENNESSEE...
  THIS INCLUDES THE CITY OF NASHVILLE...
  EASTERN HICKMAN COUNTY IN TENNESSEE...
  WESTERN MACON COUNTY IN TENNESSEE...
  THIS INCLUDES THE CITY OF LAFAYETTE...
  NORTHERN MAURY COUNTY IN TENNESSEE...
  EASTERN ROBERTSON COUNTY IN TENNESSEE...
  NORTHWESTERN RUTHERFORD COUNTY IN TENNESSEE...
  SUMNER COUNTY IN TENNESSEE...
  THIS INCLUDES THE CITY OF GALLATIN...
  WESTERN TROUSDALE COUNTY IN TENNESSEE...
  THIS INCLUDES THE CITY OF HARTSVILLE...
  WILLIAMSON COUNTY IN TENNESSEE...
  THIS INCLUDES THE CITY OF FRANKLIN...
  WESTERN WILSON COUNTY IN TENNESSEE...
  THIS INCLUDES THE CITY OF LEBANON...

* UNTIL MIDNIGHT CDT

* AT 1108 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM PORTLAND TO 18 MILES SOUTHWEST
  OF FAIRVIEW. THE LINE WAS MOVING EAST AT 40 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  WHITE HOUSE...PORTLAND AND MILLERSVILLE BY 1115 PM CDT...
  GOODLETTSVILLE BY 1120 PM CDT...
  NASHVILLE...FOREST HILLS AND BELLE MEADE BY 1125 PM CDT...
  OAK HILL...LAKEWOOD AND HENDERSONVILLE BY 1130 PM CDT...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FRIDAY MORNING FOR
CENTRAL TENNESSEE.

LAT...LON 3665 8599 3663 8596 3571 8659 3571 8677
      3566 8682 3570 8749 3597 8727 3597 8722
      3599 8719 3608 8718 3667 8667
TIME...MOT...LOC 0410Z 270DEG 39KT 3665 8656 3578 8730

$$

BOYD

The office that day

Everything else NWS Nashville, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 18, 8:08 PM CDTTornado WarningOHXStewart37 min
Oct 18, 8:48 PM CDTSevere Thunderstorm WarningOHXBenton, Stewart57 min
Oct 18, 9:17 PM CDTSevere Thunderstorm WarningOHXBenton, Houston, Humphreys, Stewart43 min
Oct 18, 9:56 PM CDTTornado WarningOHXBenton, Humphreys34 min
Oct 18, 10:19 PM CDTSevere Thunderstorm WarningOHXCheatham, Davidson, Dickson, Hickman, Humphreys, Lawrence and 8 more56 min
Oct 18, 11:19 PM CDTSevere Thunderstorm WarningOHXGiles, Hickman, Lawrence, Lewis, Maury, Perry and 1 more56 min
Oct 18, 11:51 PM CDTSevere Thunderstorm WarningOHXCannon, Clay, Davidson, DeKalb, Jackson, Macon and 6 more54 min
Oct 19, 12:03 AM CDTSevere Thunderstorm WarningOHXBedford, Giles, Marshall, Maury27 min
Oct 19, 12:35 AM CDTSevere Thunderstorm WarningOHXBedford, Cannon, Coffee, Grundy, Rutherford, Warren40 min
Oct 19, 12:39 AM CDTSevere Thunderstorm WarningOHXCannon, Clay, DeKalb, Fentress, Jackson, Overton and 7 more51 min
Oct 19, 1:22 AM CDTSevere Thunderstorm WarningOHXCoffee, Grundy, Van Buren, Warren38 min
Oct 19, 1:34 AM CDTSevere Thunderstorm WarningOHXCumberland, Fentress, Overton, Pickett, Putnam, Van Buren and 1 more41 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2007Every severe thunderstorm warning 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.