Alert archive / Tennessee / Tornado Warnings in 2017

Tornado Warning 37, NWS Nashville, TN

August 31, 2017Hickman County, Lewis County, Maury County, Tennessee

NWS Nashville, TN issued this tornado warning at Aug 31, 2017, 5:44 PM CDT for Hickman County, Lewis County, Maury County, Tennessee. It was in force for 31 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
Aug 31, 2017, 5:44 PM CDT (22:44 UTC)
Expired
Aug 31, 2017, 6:15 PM CDT
In force
31 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Hickman County, TN, Lewis County, TN, Maury County, TN

The radar

The Nashville radar (KOHX), 96 km from the middle of the area, began a volume at 22:44 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 nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.7 hours before the alert went out and 85 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 12:00Z on 2017-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 198 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 12:00Z on 2017-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 128 square meters per square second.193958Sfc1 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
198 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
462 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
123 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted.

494 
WFUS54 KOHX 312244
TOROHX
TNC081-101-119-312315-
/O.NEW.KOHX.TO.W.0037.170831T2244Z-170831T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Nashville TN
544 PM CDT THU AUG 31 2017

The National Weather Service in Nashville has issued a

* Tornado Warning for...
  Northeastern Lewis County in Middle Tennessee...
  West central Maury County in Middle Tennessee...
  Southeastern Hickman County in Middle Tennessee...

* Until 615 PM CDT
    
* At 544 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 8 miles northwest of Mount Pleasant, or 13 miles
  southeast of Centerville, moving northwest at 15 mph.

  HAZARD...Tornado. 

  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
  northeastern Lewis...west central Maury and southeastern Hickman
  Counties.

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 3564 8725 3558 8736 3572 8755 3579 8736
TIME...MOT...LOC 2244Z 129DEG 13KT 3563 8731 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Whitehead

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 4:24 PM CDTTornado WarningOHXLawrence, Wayne21 min
Aug 31, 4:26 PM CDTTornado WarningOHXPerry19 min
Aug 31, 4:43 PM CDTTornado WarningOHXLawrence, Lewis, Maury32 min
Aug 31, 5:13 PM CDTTornado WarningOHXLewis, Maury32 min
Aug 31, 5:57 PM CDTTornado WarningOHXDavidson33 min
Aug 31, 6:17 PM CDTAreal Flood AdvisoryOHXDavidson118 min
Aug 31, 6:37 PM CDTFlash Flood WarningOHXDavidson, Robertson7 hr
Aug 31, 6:44 PM CDTTornado WarningOHXDavidson, Robertson16 min

Nearby

Tornado Warnings in Tennessee, 2017Every tornado warning in 2017Tornadoes in 2017

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.