Alert archive / Tennessee / Special Weather Statements in 2021

Special Weather Statement, NWS Nashville, TN

October 15, 2021Dickson County, Tennessee

NWS Nashville, TN issued this special weather statement at Oct 15, 2021, 6:21 PM CDT for Dickson County, Tennessee. It was in force for 39 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
Oct 15, 2021, 6:21 PM CDT (23:21 UTC)
Expired
Oct 15, 2021, 7:00 PM CDT
In force
39 min
Issued by
NWS Nashville, TN
Hail
0.25 in
Wind
40

County Dickson County, TN

The radar

The Ft Campbell radar (KHPX), 62 km from the middle of the area, began a volume at 23:25 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, 11.4 hours before the alert went out and 73 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 2021-10-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 47 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2021-10-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 169 square meters per square second.1939587897Sfc1 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
47 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
810 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
169 m²/s²
0-3 km storm-relative helicity
215 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

610 
WWUS84 KOHX 152321
SPSOHX

Special Weather Statement
National Weather Service Nashville TN
621 PM CDT Fri Oct 15 2021
 
TNZ006-023-025-026-160000-
Dickson TN-Cheatham TN-Montgomery TN-Houston TN-
621 PM CDT Fri Oct 15 2021

...A strong thunderstorm will impact portions of Dickson, southern
Montgomery, western Cheatham and eastern Houston Counties through 700
PM CDT...

At 621 PM CDT, Doppler radar was tracking a strong thunderstorm 7
miles northeast of McEwen, or 12 miles southeast of Erin, moving
northeast at 35 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations impacted include...
Dickson, White Bluff, Charlotte, Vanleer, Slayden and Cheatham Dam. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Severe Thunderstorm Watch remains in effect until midnight CDT for
Middle Tennessee.

&&

LAT...LON 3610 8717 3603 8755 3610 8754 3617 8756
      3618 8757 3635 8760 3644 8711
TIME...MOT...LOC 2321Z 238DEG 49KT 3620 8754 

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

$$

07

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 15, 4:46 PM CDTSpecial Weather StatementOHXHouston, Stewart44 min
Oct 15, 5:28 PM CDTSpecial Weather StatementOHXHouston, Humphreys, Montgomery, Stewart47 min
Oct 15, 5:45 PM CDTSevere Thunderstorm WarningOHXHouston, Humphreys45 min
Oct 15, 5:56 PM CDTSpecial Weather StatementOHXOverton, Putnam49 min
Oct 15, 6:14 PM CDTSpecial Weather StatementOHXRobertson46 min
Oct 15, 6:31 PM CDTSpecial Weather StatementOHXFentress, Overton, Pickett44 min
Oct 15, 6:33 PM CDTSpecial Weather StatementOHXRobertson27 min
Oct 15, 6:39 PM CDTSevere Thunderstorm WarningOHXRobertson36 min
Oct 15, 6:59 PM CDTSpecial Weather StatementOHXSumner46 min

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.