Alert archive / Tennessee / Special Weather Statements in 2021

Special Weather Statement, NWS Nashville, TN

August 6, 2021Lawrence County, Tennessee

NWS Nashville, TN issued this special weather statement at Aug 6, 2021, 6:31 PM CDT for Lawrence County, Tennessee. It was in force for 59 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 6, 2021, 6:31 PM CDT (23:31 UTC)
Expired
Aug 6, 2021, 7:30 PM CDT
In force
59 min
Issued by
NWS Nashville, TN
Hail
0.00 in
Wind
30

County Lawrence County, TN

The radar

The Northeast Alabama radar (KHTX), 123 km from the middle of the area, began a volume at 23:31 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, 11.5 hours before the alert went out and 134 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 2021-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 253 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2021-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 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
253 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
972 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

587 
WWUS84 KOHX 062331
SPSOHX

Special Weather Statement
National Weather Service Nashville TN
631 PM CDT Fri Aug 6 2021
 
TNZ094-070030-
Lawrence TN-
631 PM CDT Fri Aug 6 2021

...A strong thunderstorm will impact portions of southern Lawrence
County through 730 PM CDT...

At 630 PM CDT, Doppler radar was tracking a strong thunderstorm over
Loretto, or 14 miles southwest of Lawrenceburg, moving northeast at
15 mph.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

Locations impacted include...
Lawrenceburg, Loretto, St. Joseph, Leoma, Westpoint and Iron City. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3504 8758 3506 8759 3513 8759 3535 8745
      3521 8721 3520 8722 3518 8722 3516 8721
      3500 8740 3500 8752
TIME...MOT...LOC 2330Z 216DEG 12KT 3508 8749 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

$$

FB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 5:55 PM CDTAreal Flood AdvisoryOHXLawrence, Wayne2 hr

Nearby

Special Weather Statements in Tennessee, 2021Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.