Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 98, NWS Nashville, TN

June 12, 2021Stewart County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jun 12, 2021, 10:00 PM CDT for Stewart County, Tennessee. It was in force for 30 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: Jun 12, 2021, 10:00 PM CDT (03:00 UTC)
Expired: Jun 12, 2021, 10:30 PM CDT
In force: 30 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Stewart County, TN

The radar

The Ft Campbell radar (KHPX), 60 km from the middle of the area, began a volume at 02:59 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
Jun 12, 10:15 PM CDT	TSTM WND DMG	Dover, TN	TREES WERE BLOWN DOWN IN DOVER WITH SOME BRANCHES ON A HOUSE. TIME WAS ESTIMATED BY RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 3.0 hours before the alert went out and 126 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1684 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1699 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 59 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted.

344 
WUUS54 KOHX 130300
SVROHX
TNC161-130330-
/O.NEW.KOHX.SV.W.0098.210613T0300Z-210613T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
1000 PM CDT Sat Jun 12 2021

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Stewart County in Middle Tennessee...

* Until 1030 PM CDT.

* At 959 PM CDT, a severe thunderstorm was located near Big Rock, or
  11 miles north of Dover, moving south at 20 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Dover, Big Rock, Cumberland City, Land Between The Lakes and Indian
  Mound.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3647 8805 3649 8806 3652 8804 3656 8803
      3667 8793 3666 8785 3663 8785 3664 8764
      3650 8762 3638 8761 3643 8805 3645 8806
TIME...MOT...LOC 0259Z 016DEG 18KT 3665 8780 

HAIL...1.00IN
WIND...60MPH
 
$$

Barnwell

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 7:58 PM CDT	Special Weather Statement	OHX	Montgomery	32 min
Jun 12, 9:55 PM CDT	Special Weather Statement	OHX	Houston, Stewart	50 min
Jun 12, 10:28 PM CDT	Severe Thunderstorm Warning	OHX	Houston, Stewart	47 min
Jun 13, 7:18 AM CDT	Special Weather Statement	OHX	Dickson	42 min
Jun 13, 8:09 AM CDT	Special Weather Statement	OHX	Hickman	21 min
Jun 13, 8:16 AM CDT	Special Weather Statement	OHX	Dickson	29 min
Jun 13, 8:25 AM CDT	Special Weather Statement	OHX	Williamson	35 min
Jun 13, 4:13 PM CDT	Special Weather Statement	OHX	Williamson	17 min
Jun 13, 5:27 PM CDT	Special Weather Statement	OHX	Clay	48 min
Jun 13, 5:34 PM CDT	Special Weather Statement	OHX	Marshall	26 min
Jun 13, 5:49 PM CDT	Special Weather Statement	OHX	Smith	41 min
Jun 13, 5:54 PM CDT	Special Weather Statement	OHX	Bedford	36 min
Jun 13, 6:34 PM CDT	Special Weather Statement	OHX	DeKalb	41 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2021 Every severe thunderstorm warning in 2021

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.