Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 181, NWS Memphis, TN

August 8, 2021Obion County, Weakley County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Aug 8, 2021, 10:11 PM CDT for Obion County, Weakley County, Tennessee. It was in force for 34 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 8, 2021, 10:11 PM CDT (03:11 UTC)
Expired
Aug 8, 2021, 10:45 PM CDT
In force
34 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Obion County, TN, Weakley County, TN

The radar

The Paducah radar (KPAH), 83 km from the middle of the area, began a volume at 03:10 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 00:00Z, 3.2 hours before the alert went out and 192 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 00:00Z on 2021-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 694 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2021-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 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
694 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1394 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

691 
WUUS54 KMEG 090311
SVRMEG
TNC131-183-090345-
/O.NEW.KMEG.SV.W.0181.210809T0311Z-210809T0345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
1011 PM CDT Sun Aug 8 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Weakley County in western Tennessee...
  Eastern Obion County in western Tennessee...

* Until 1045 PM CDT.

* At 1010 PM CDT, a severe thunderstorm was located over Martin,
  moving east at 30 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Martin, Union City, Fulton, Dresden, South Fulton, Gleason, Sharon,
  Latham, Palmersville, Rives, Matheny Grove, Sandhill, Ore Springs,
  Hyndsver, Mount Pelia, Gibbs, Ruthville, Ralston, Shaffner and
  Brundige.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3617 8853 3629 8911 3650 8895 3650 8852
TIME...MOT...LOC 0310Z 269DEG 25KT 3638 8885 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MJ
2 follow-up statements
883 
WWUS54 KMEG 090327
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
1027 PM CDT Sun Aug 8 2021

TNC131-090336-
/O.CAN.KMEG.SV.W.0181.000000T0000Z-210809T0345Z/
Obion TN-
1027 PM CDT Sun Aug 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN OBION COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled. However, 
gusty winds will still be possible.

LAT...LON 3650 8852 3617 8853 3626 8896 3627 8896
      3640 8887 3641 8885 3641 8882 3648 8882
      3650 8881
TIME...MOT...LOC 0326Z 269DEG 25KT 3638 8871 

$$

TNC183-090345-
/O.CON.KMEG.SV.W.0181.000000T0000Z-210809T0345Z/
Weakley TN-
1027 PM CDT Sun Aug 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR WEAKLEY COUNTY...

At 1026 PM CDT, a severe thunderstorm was located over Latham, or 8
miles east of Martin, moving east at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Martin, Dresden, Gleason, Sharon, Latham, Palmersville, Matheny
Grove, Sandhill, Ore Springs, Hyndsver, Ruthville, Ralston, Brundige,
Pisgah and Gardner.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3650 8852 3617 8853 3626 8896 3627 8896
      3640 8887 3641 8885 3641 8882 3648 8882
      3650 8881
TIME...MOT...LOC 0326Z 269DEG 25KT 3638 8871 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MJ
472 
WWUS54 KMEG 090343
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
1043 PM CDT Sun Aug 8 2021

TNC183-090353-
/O.EXP.KMEG.SV.W.0181.000000T0000Z-210809T0345Z/
Weakley TN-
1043 PM CDT Sun Aug 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR WEAKLEY COUNTY WILL EXPIRE AT
1045 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

LAT...LON 3650 8852 3617 8853 3626 8896 3627 8896
      3640 8887 3641 8885 3641 8882 3648 8882
      3650 8881
TIME...MOT...LOC 0343Z 269DEG 25KT 3638 8857 

$$

MJ

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 9:04 PM CDTSpecial Weather StatementMEGObion41 min
Aug 8, 9:52 PM CDTSpecial Weather StatementMEGObion, Weakley38 min
Aug 8, 10:32 PM CDTAreal Flood AdvisoryMEGLake, Obion, Weakley3 hr
Aug 8, 10:45 PM CDTSpecial Weather StatementMEGHenry, Weakley45 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.