Alert archive / Tennessee / Tornado Warnings in 2018

Tornado Warning 6, NWS Nashville, TN

June 23, 2018Lawrence County, Wayne County, Tennessee

NWS Nashville, TN issued this tornado warning at Jun 23, 2018, 8:55 PM CDT for Lawrence County, Wayne County, Tennessee. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 23, 2018, 8:55 PM CDT (01:55 UTC)
Expired
Jun 23, 2018, 9:30 PM CDT
In force
35 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Lawrence County, TN, Wayne County, TN

The radar

The Columbus AFB radar (KGWX), 141 km from the middle of the area, began a volume at 01:56 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 23, 5:40 PM CDTTornado WatchSPC4 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 1.9 hours before the alert went out and 155 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 2018-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 389 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2018-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 square meters per square second.19395878Sfc1 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
389 J/kg
Mixed-layer CIN
-75 J/kg
Mixed-layer LCL
1162 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.5

Open this sounding in Storm Lab

The text

As transmitted.

540 
WFUS54 KOHX 240155
TOROHX
TNC099-181-240230-
/O.NEW.KOHX.TO.W.0006.180624T0155Z-180624T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Nashville TN
855 PM CDT SAT JUN 23 2018

The National Weather Service in Nashville has issued a

* Tornado Warning for...
  Southeastern Wayne County in Middle Tennessee...
  Southwestern Lawrence County in Middle Tennessee...

* Until 930 PM CDT.
    
* At 855 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 8 miles south of Collinwood, or 18 miles north of
  Florence, moving east at 20 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic thunderstorm will remain over mainly rural areas of
  southeastern Wayne and southwestern Lawrence Counties, including
  the following locations... Cypress Inn, St. Joseph, Westpoint and
  Iron City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3501 8788 3515 8784 3513 8745 3500 8748
TIME...MOT...LOC 0155Z 282DEG 18KT 3505 8778 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Rose
1 follow-up statement
366 
WWUS54 KOHX 240207
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
907 PM CDT SAT JUN 23 2018

TNC099-181-240230-
/O.CON.KOHX.TO.W.0006.000000T0000Z-180624T0230Z/
Wayne TN-Lawrence TN-
907 PM CDT SAT JUN 23 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR
SOUTHEASTERN WAYNE AND SOUTHWESTERN LAWRENCE COUNTIES...
    
At 907 PM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles south of Collinwood, or 17 miles north of
Florence, moving east at 20 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Loretto, St. Joseph, Cypress Inn, Westpoint and Iron City. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3501 8788 3515 8784 3513 8745 3500 8748
TIME...MOT...LOC 0207Z 279DEG 18KT 3505 8771 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Rose

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 7:46 PM CDTSevere Thunderstorm WarningOHXWayne29 min
Jun 23, 8:01 PM CDTTornado WarningOHXWayne29 min
Jun 23, 8:52 PM CDTAreal Flood AdvisoryOHXWayne3 hr
Jun 23, 9:28 PM CDTTornado WarningOHXLawrence, Wayne32 min
Jun 23, 9:38 PM CDTFlash Flood WarningOHXLawrence, Wayne3 hr
Jun 23, 11:23 PM CDTFlash Flood WarningOHXWayne3 hr
Jun 24, 12:40 PM CDTSpecial Weather StatementOHXCumberland35 min
Jun 24, 1:59 PM CDTSpecial Weather StatementOHXMarshall31 min
Jun 24, 2:06 PM CDTSpecial Weather StatementOHXOverton, Putnam39 min
Jun 24, 2:23 PM CDTSpecial Weather StatementOHXCoffee22 min
Jun 24, 2:46 PM CDTSpecial Weather StatementOHXCumberland44 min
Jun 24, 3:40 PM CDTSpecial Weather StatementOHXJackson35 min
Jun 24, 3:49 PM CDTSpecial Weather StatementOHXCumberland41 min
Jun 24, 4:04 PM CDTSevere Thunderstorm WarningOHXOverton, Putnam26 min
Jun 24, 4:24 PM CDTSevere Thunderstorm WarningOHXCumberland, Fentress, Overton, Putnam18 min
Jun 24, 4:30 PM CDTSpecial Weather StatementOHXFentress, Overton, Pickett30 min
Jun 24, 4:45 PM CDTSpecial Weather StatementOHXJackson, Overton30 min
Jun 24, 6:45 PM CDTSpecial Weather StatementOHXSumner30 min
Jun 24, 6:50 PM CDTSpecial Weather StatementOHXBedford25 min

Nearby

Tornado Warnings in Tennessee, 2018Every tornado warning in 2018Tornadoes in 2018

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; radar from the NEXRAD Level II archive.