Alert archive / Tennessee / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 13, NWS Nashville, TN

January 10, 2008Macon County, Trousdale County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jan 10, 2008, 3:18 PM CST for Macon County, Trousdale County, Tennessee. It was in force for 37 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: Jan 10, 2008, 3:18 PM CST (21:18 UTC)
Expired: Jan 10, 2008, 3:55 PM CST
In force: 37 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Macon County, TN, Trousdale County, TN

The radar

The Nashville radar (KOHX), 58 km from the middle of the area, began a volume at 21:19 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
Jan 10, 11:33 AM CST	Tornado Watch PDS	SPC	9 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.3 hours before the alert went out and 67 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: 4 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 589 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 155 m²/s²
0-3 km storm-relative helicity: 170 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KOHX 102119
SVROHX
TNC111-169-102155-
/O.NEW.KOHX.SV.W.0013.080110T2118Z-080110T2155Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
318 PM CST THU JAN 10 2008

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MACON COUNTY IN TENNESSEE...
  THIS INCLUDES THE CITY OF LAFAYETTE...
  TROUSDALE COUNTY IN TENNESSEE...
  THIS INCLUDES THE CITY OF HARTSVILLE...

* UNTIL 355 PM CST

* AT 314 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR HARTSVILLE...AND
  MOVING NORTHEAST AT 55 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LAFAYETTE BY 325 PM CST...
  RED BOILING SPRINGS BY 330 PM CST...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CST THURSDAY EVENING
FOR CENTRAL TENNESSEE.

LAT...LON 3661 8580 3644 8584 3642 8590 3642 8597
      3639 8599 3638 8604 3634 8612 3642 8625
      3663 8608
TIME...MOT...LOC 2118Z 234DEG 58KT 3643 8607

$$

21

1 follow-up statement

000 
WWUS54 KOHX 102136
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
336 PM CST THU JAN 10 2008

TNC169-102146-
/O.CAN.KOHX.SV.W.0013.000000T0000Z-080110T2155Z/
TROUSDALE TN-
336 PM CST THU JAN 10 2008

...THE SEVERE THUNDERSTORM WARNING FOR TROUSDALE COUNTY IS
CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CST THURSDAY EVENING
FOR CENTRAL TENNESSEE.

LAT...LON 3661 8580 3644 8584 3642 8590 3643 8602
      3644 8604 3644 8615 3649 8620 3663 8608
TIME...MOT...LOC 2136Z 234DEG 58KT 3653 8583

$$

TNC111-102200-
/O.CON.KOHX.SV.W.0013.000000T0000Z-080110T2200Z/
MACON TN-
336 PM CST THU JAN 10 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CST
FOR MACON COUNTY...

AT 333 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL.  THIS STORM WAS LOCATED NEAR RED BOILING SPRINGS...OR ABOUT 8
MILES EAST OF LAFAYETTE...MOVING NORTHEAST AT 55 MPH.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CST THURSDAY EVENING
FOR CENTRAL TENNESSEE.

LAT...LON 3661 8580 3644 8584 3642 8590 3643 8602
      3644 8604 3644 8615 3649 8620 3663 8608
TIME...MOT...LOC 2136Z 234DEG 58KT 3653 8583

$$

21

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 10, 12:03 PM CST	Areal Flood Advisory	OHX	Benton, Dickson, Houston, Humphreys, Montgomery, Stewart	114 days
Jan 10, 12:22 PM CST	Tornado Warning	OHX	Montgomery	23 min
Jan 10, 1:10 PM CST	Severe Thunderstorm Warning	OHX	Robertson	35 min
Jan 10, 1:27 PM CST	Severe Thunderstorm Warning	OHX	Williamson	33 min
Jan 10, 1:35 PM CST	Severe Thunderstorm Warning	OHX	Lewis, Wayne	25 min
Jan 10, 1:57 PM CST	Severe Thunderstorm Warning	OHX	Lewis, Maury	33 min
Jan 10, 2:04 PM CST	Severe Thunderstorm Warning	OHX	Davidson, Wilson	26 min
Jan 10, 2:17 PM CST	Tornado Warning	OHX	Maury	28 min
Jan 10, 2:28 PM CST	Tornado Warning	OHX	Williamson	32 min
Jan 10, 2:33 PM CST	Severe Thunderstorm Warning	OHX	Lawrence, Wayne	42 min
Jan 10, 2:36 PM CST	Tornado Warning	OHX	Lewis	24 min
Jan 10, 2:41 PM CST	Areal Flood Advisory	OHX	Davidson, Giles, Hickman, Lawrence, Lewis, Marshall and 8 more	181 days
Jan 10, 2:49 PM CST	Severe Thunderstorm Warning	OHX	Macon, Trousdale	41 min
Jan 10, 2:51 PM CST	Severe Thunderstorm Warning	OHX	Rutherford, Wilson	24 min
Jan 10, 3:12 PM CST	Flash Flood Warning	OHX	Davidson, Lewis, Macon, Marshall, Maury, Rutherford and 5 more	3 hr
Jan 10, 3:31 PM CST	Severe Thunderstorm Warning	OHX	Smith, Wilson	21 min
Jan 10, 3:57 PM CST	Severe Thunderstorm Warning	OHX	Jackson	33 min
Jan 10, 4:20 PM CST	Severe Thunderstorm Warning	OHX	Clay, Overton, Pickett	40 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2008 Every severe thunderstorm warning in 2008

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.