Alert archive / Tennessee / Special Weather Statements in 2017

Special Weather Statement, NWS Nashville, TN

November 3, 2017Moore County, Tennessee

NWS Nashville, TN issued this special weather statement at Nov 3, 2017, 8:32 AM CDT for Moore County, Tennessee. It was in force for 28 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
Nov 3, 2017, 8:32 AM CDT (13:32 UTC)
Expired
Nov 3, 2017, 9:00 AM CDT
In force
28 min
Issued by
NWS Nashville, TN

County Moore County, TN

The radar

The Northeast Alabama radar (KHTX), 56 km from the middle of the area, began a volume at 13:31 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, 1.5 hours before the alert went out and 86 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 2017-11-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 740 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 2017-11-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 216 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
740 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
566 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
216 m²/s²
0-3 km storm-relative helicity
203 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

885 
WWUS84 KOHX 031332
SPSOHX

Special Weather Statement
National Weather Service Nashville TN
832 AM CDT FRI NOV 3 2017
 
TNZ075-031400-
Bedford TN-
832 AM CDT FRI NOV 3 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN BEDFORD COUNTY UNTIL
900 AM CDT...

At 832 AM CDT, Doppler radar was tracking a strong thunderstorm 7
miles south of Shelbyville, moving east at 20 mph.

Half inch hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Raus.

LAT...LON 3537 8648 3546 8639 3544 8625 3541 8625
      3541 8629 3539 8630 3538 8633 3536 8633
      3536 8636 3535 8637 3535 8641 3533 8641
      3532 8642
TIME...MOT...LOC 1332Z 290DEG 19KT 3539 8641 

$$

Whitehead

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 3, 6:06 AM CDTSpecial Weather StatementOHXCheatham, Davidson, Robertson39 min
Nov 3, 8:15 AM CDTSpecial Weather StatementOHXMarshall15 min

Nearby

Special Weather Statements in Tennessee, 2017Every special weather statement 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.