Alert archive / Tennessee / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 46, NWS Nashville, TN

March 2, 2012Van Buren County, White County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Mar 2, 2012, 6:56 PM CST for Van Buren County, White County, Tennessee. It was in force for 34 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: Mar 2, 2012, 6:56 PM CST (00:56 UTC)
Expired: Mar 2, 2012, 7:30 PM CST
In force: 34 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Van Buren County, TN, White County, TN

The radar

The Nashville radar (KOHX), 104 km from the middle of the area, began a volume at 00:58 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.

Issued	Product	Office	Lasted
Mar 2, 1:20 PM CST	Tornado Watch	SPC	9 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.9 hours before the alert went out and 102 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: 262 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 1382 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 150 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

959 
WUUS54 KOHX 030056
SVROHX
TNC175-185-030130-
/O.NEW.KOHX.SV.W.0046.120303T0056Z-120303T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
656 PM CST FRI MAR 2 2012

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN VAN BUREN COUNTY IN MIDDLE TENNESSEE...
  SOUTHERN WHITE COUNTY IN MIDDLE TENNESSEE...

* UNTIL 730 PM CST

* AT 654 PM CST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH. THE STORM WAS NEAR CENTERTOWN...MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SPARTA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL
WEATHER SERVICE BY CALLING TOLL FREE...1 8 7 7 6 3 3 6 7 7 2. DO NOT
STAY OUTDOORS IF YOU ARE IN THE PATH OF SEVERE THUNDERSTORMS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM FRIDAY EVENING FOR
CENTRAL TENNESSEE.

&&

LAT...LON 3573 8560 3575 8559 3576 8561 3579 8560
      3583 8566 3585 8563 3586 8567 3588 8564
      3589 8567 3590 8564 3593 8565 3599 8529
      3598 8528 3580 8525 3579 8527 3578 8525
TIME...MOT...LOC 0056Z 264DEG 34KT 3578 8588

$$

04

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 2, 6:05 PM CST	Severe Thunderstorm Warning	OHX	Lawrence, Wayne	25 min
Mar 2, 6:08 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee	37 min
Mar 2, 6:15 PM CST	Tornado Warning	OHX	Coffee, Warren	30 min
Mar 2, 6:21 PM CST	Tornado Warning	OHX	Bedford, Giles, Marshall, Maury	24 min
Mar 2, 6:24 PM CST	Tornado Warning	OHX	Giles, Lawrence, Wayne	18 min
Mar 2, 6:36 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, DeKalb, Rutherford, Warren	24 min
Mar 2, 6:36 PM CST	Tornado Warning	OHX	Bedford, Marshall	24 min
Mar 2, 6:41 PM CST	Tornado Warning	OHX	Van Buren, Warren	34 min
Mar 2, 6:57 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Coffee	33 min
Mar 2, 7:09 PM CST	Tornado Warning	OHX	Van Buren	21 min
Mar 2, 7:15 PM CST	Severe Thunderstorm Warning	OHX	Cumberland	30 min
Mar 2, 7:22 PM CST	Tornado Warning	OHX	Cumberland	38 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2012 Every severe thunderstorm warning in 2012

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.