Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 140, NWS Nashville, TN

October 15, 2021Houston County, Humphreys County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Oct 15, 2021, 5:45 PM CDT for Houston County, Humphreys County, Tennessee. It was in force for 45 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, 5:45 PM CDT (22:45 UTC)
Expired
Oct 15, 2021, 6:30 PM CDT
In force
45 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Houston County, TN, Humphreys County, TN

The radar

The Ft Campbell radar (KHPX), 85 km from the middle of the area, began a volume at 22:47 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, 10.8 hours before the alert went out and 113 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°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 2021-10-15The 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.

155 
WUUS54 KOHX 152245
SVROHX
TNC083-085-152330-
/O.NEW.KOHX.SV.W.0140.211015T2245Z-211015T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
545 PM CDT Fri Oct 15 2021

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Houston County in Middle Tennessee...
  Humphreys County in Middle Tennessee...

* Until 630 PM CDT.

* At 545 PM CDT, a severe thunderstorm was located near Camden,
  moving northeast at 35 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Waverly, Camden, Erin, New Johnsonville, McEwen and Tennessee
  Ridge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3605 8799 3613 8792 3617 8792 3622 8795
      3626 8794 3637 8760 3609 8755 3601 8755
      3600 8800 3603 8800
TIME...MOT...LOC 2245Z 239DEG 49KT 3612 8794 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

07
1 follow-up statement
306 
WWUS54 KOHX 152310
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
610 PM CDT Fri Oct 15 2021

TNC083-085-152330-
/O.CON.KOHX.SV.W.0140.000000T0000Z-211015T2330Z/
Houston TN-Humphreys TN-
610 PM CDT Fri Oct 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR EASTERN HOUSTON AND NORTHEASTERN HUMPHREYS COUNTIES...

At 610 PM CDT, a severe thunderstorm was located 7 miles east of
Erin, moving northeast at 35 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Waverly, Erin and McEwen. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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

&&

LAT...LON 3608 8782 3622 8782 3626 8781 3635 8760
      3609 8755 3601 8755 3600 8781 3605 8781
TIME...MOT...LOC 2310Z 239DEG 49KT 3630 8758 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 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, 5:56 PM CDTSpecial Weather StatementOHXOverton, Putnam49 min
Oct 15, 6:14 PM CDTSpecial Weather StatementOHXRobertson46 min
Oct 15, 6:21 PM CDTSpecial Weather StatementOHXDickson39 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

Severe Thunderstorm Warnings in Tennessee, 2021Every severe thunderstorm warning 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.