Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 169, NWS Memphis, TN

July 8, 20214 counties in Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Jul 8, 2021, 11:25 PM CDT for 4 counties in Tennessee. It was in force for 50 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
Jul 8, 2021, 11:25 PM CDT (04:25 UTC)
Expired
Jul 9, 2021, 12:15 AM CDT
In force
50 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Carroll County, TN, Gibson County, TN, Henderson County, TN, Madison County, TN

The radar

The Memphis radar (KNQA), 118 km from the middle of the area, began a volume at 04:24 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

Little Rock, AR (KLZK), launched 00:00Z, 4.4 hours before the alert went out and 155 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, Little Rock, AR at 00:00Z on 2021-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1294 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, Little Rock, AR at 00:00Z on 2021-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 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
1294 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1750 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.3

Open this sounding in Storm Lab

The text

As transmitted.

771 
WUUS54 KMEG 090425
SVRMEG
TNC017-053-077-113-090515-
/O.NEW.KMEG.SV.W.0169.210709T0425Z-210709T0515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
1125 PM CDT Thu Jul 8 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Northwestern Henderson County in western Tennessee...
  Southeastern Gibson County in western Tennessee...
  Southwestern Carroll County in western Tennessee...
  Northeastern Madison County in western Tennessee...

* Until 1215 AM CDT.

* At 1124 PM CDT, a severe thunderstorm was located near Fairview, or
  8 miles north of Jackson, moving east at 15 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Jackson, Lexington, Fairview, Three Way, Blue Goose, Bargerton,
  Carroll, Medina, Hickory Flat, Cedar Grove, Union Cross, Juno,
  Gilmore, Sitka, Claybrook, Youngs Crossing, West, Mount Gilead,
  Huron and Russell Crossroads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3567 8890 3587 8880 3588 8868 3582 8841
      3570 8840 3558 8853
TIME...MOT...LOC 0424Z 270DEG 15KT 3575 8878 

HAIL...<.75IN
WIND...60MPH
 
$$

MJ
2 follow-up statements
476 
WWUS54 KMEG 090449
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
1149 PM CDT Thu Jul 8 2021

TNC017-053-090458-
/O.CAN.KMEG.SV.W.0169.000000T0000Z-210709T0515Z/
Gibson TN-Carroll TN-
1149 PM CDT Thu Jul 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GIBSON AND
SOUTHWESTERN CARROLL COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3565 8870 3576 8869 3582 8841 3570 8840
      3559 8852
TIME...MOT...LOC 0448Z 262DEG 20KT 3574 8853 

$$

TNC077-113-090515-
/O.CON.KMEG.SV.W.0169.000000T0000Z-210709T0515Z/
Henderson TN-Madison TN-
1149 PM CDT Thu Jul 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT
FOR NORTHWESTERN HENDERSON AND NORTHEASTERN MADISON COUNTIES...

At 1148 PM CDT, a severe thunderstorm was located over Bargerton, or
9 miles northwest of Lexington, moving east at 25 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Lexington, Blue Goose, Bargerton, Sand Ridge, Claybrook, Cedar Grove,
Mount Gilead, White Fern, Russell Crossroads, Union Cross and Juno.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3565 8870 3576 8869 3582 8841 3570 8840
      3559 8852
TIME...MOT...LOC 0448Z 262DEG 20KT 3574 8853 

HAIL...<.75IN
WIND...60MPH
 
$$

MJ
640 
WWUS54 KMEG 090507
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
1207 AM CDT Fri Jul 9 2021

TNC077-113-090517-
/O.EXP.KMEG.SV.W.0169.000000T0000Z-210709T0515Z/
Henderson TN-Madison TN-
1207 AM CDT Fri Jul 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN HENDERSON AND
NORTHEASTERN MADISON COUNTIES WILL EXPIRE AT 1215 AM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 3565 8870 3576 8869 3582 8841 3570 8840
      3559 8852
TIME...MOT...LOC 0507Z 270DEG 15KT 3574 8844 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 10:53 PM CDTSpecial Weather StatementMEGCarroll37 min
Jul 8, 10:56 PM CDTSevere Thunderstorm WarningMEGCarroll, Gibson, Weakley49 min
Jul 8, 10:59 PM CDTSpecial Weather StatementMEGMadison31 min
Jul 8, 11:54 PM CDTAreal Flood AdvisoryMEGBenton, Carroll, Decatur2 hr
Jul 8, 11:57 PM CDTSpecial Weather StatementMEGBenton, Decatur, Henderson33 min
Jul 9, 7:39 AM CDTSpecial Weather StatementMEGHardin21 min
Jul 9, 10:06 AM CDTAreal Flood AdvisoryMEGFayette, Shelby3 hr
Jul 9, 12:52 PM CDTFlash Flood WarningMEGShelby3 hr
Jul 9, 1:19 PM CDTSevere Thunderstorm WarningMEGShelby41 min
Jul 9, 3:04 PM CDTAreal Flood AdvisoryMEGDecatur3 hr

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.