Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 189, NWS Memphis, TN

October 15, 20214 counties in Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Oct 15, 2021, 5:56 PM CDT for 4 counties in Tennessee. It was in force for 49 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, 5:56 PM CDT (22:56 UTC)
Expired
Oct 15, 2021, 6:45 PM CDT
In force
49 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Crockett County, TN, Gibson County, TN, Haywood County, TN, Madison County, TN

The radar

The Memphis radar (KNQA), 75 km from the middle of the area, began a volume at 22:56 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Oct 15, 12:28 PM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.9 hours before the alert went out and 118 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 12:00Z on 2021-10-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 567 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, Little Rock, AR at 12:00Z on 2021-10-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 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
567 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
671 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.5

Open this sounding in Storm Lab

The text

As transmitted.

668 
WUUS54 KMEG 152256
SVRMEG
TNC033-053-075-113-152345-
/O.NEW.KMEG.SV.W.0189.211015T2256Z-211015T2345Z/

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

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Southeastern Crockett County in western Tennessee...
  Southeastern Gibson County in western Tennessee...
  Central Haywood County in western Tennessee...
  Northern Madison County in western Tennessee...

* Until 645 PM CDT.

* At 556 PM CDT, a severe thunderstorm was located near Nutbush, or 8
  miles west of Brownsville, moving east at 60 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Jackson, Brownsville, Humboldt, Milan, Fairview, Alamo, Bells,
  Three Way, Belle Eagle, Holly Grove, Adair, Carroll, Medina,
  Gadsden, Allens, Huntersville, Christmasville, Westover, Jones and
  Shepp.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3565 8861 3547 8946 3555 8947 3555 8948
      3556 8948 3558 8950 3560 8947 3568 8946
      3590 8870 3579 8871 3579 8861
TIME...MOT...LOC 2256Z 253DEG 50KT 3560 8940 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$
2 follow-up statements
036 
WWUS54 KMEG 152316
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
616 PM CDT Fri Oct 15 2021

TNC033-053-075-113-152345-
/O.CON.KMEG.SV.W.0189.000000T0000Z-211015T2345Z/
Crockett TN-Gibson TN-Haywood TN-Madison TN-
616 PM CDT Fri Oct 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR SOUTHEASTERN CROCKETT...SOUTHEASTERN GIBSON...NORTHEASTERN
HAYWOOD AND NORTHERN MADISON COUNTIES...

At 616 PM CDT, a severe thunderstorm was located over Bells, or 12
miles northeast of Brownsville, moving east at 60 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Jackson, Brownsville, Humboldt, Milan, Fairview, Alamo, Bells, Three
Way, Belle Eagle, Holly Grove, Adair, Carroll, Medina, Gadsden,
Allens, Huntersville, Westover, Jones, Gilmore and Mason Grove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3550 8931 3573 8929 3590 8870 3579 8871
      3579 8861 3565 8861
TIME...MOT...LOC 2316Z 253DEG 50KT 3568 8907 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$
976 
WWUS54 KMEG 152338
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
638 PM CDT Fri Oct 15 2021

TNC075-152347-
/O.CAN.KMEG.SV.W.0189.000000T0000Z-211015T2345Z/
Haywood TN-
638 PM CDT Fri Oct 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HAYWOOD COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
western Tennessee.

LAT...LON 3565 8861 3555 8907 3563 8907 3583 8895
      3590 8870 3579 8871 3579 8861
TIME...MOT...LOC 2337Z 253DEG 50KT 3577 8871 

$$

TNC033-053-113-152345-
/O.CON.KMEG.SV.W.0189.000000T0000Z-211015T2345Z/
Crockett TN-Gibson TN-Madison TN-
638 PM CDT Fri Oct 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR SOUTHEASTERN CROCKETT...SOUTHEASTERN GIBSON AND NORTHERN MADISON
COUNTIES...

At 637 PM CDT, a severe thunderstorm was located 7 miles east of
Fairview, or 10 miles south of Milan, moving east at 60 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Jackson, Humboldt, Milan, Fairview, Three Way, Adair, Carroll,
Medina, Gadsden, Claybrook, Youngs Crossing, West, Huntersville, Gum
Flat, Westover, Roberts, Windy City, Gilmore, Mason Grove and Sitka.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3565 8861 3555 8907 3563 8907 3583 8895
      3590 8870 3579 8871 3579 8861
TIME...MOT...LOC 2337Z 253DEG 50KT 3577 8871 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 15, 3:06 AM CDTAreal Flood AdvisoryMEGShelby3 hr
Oct 15, 3:23 PM CDTSpecial Weather StatementMEGWeakley37 min
Oct 15, 4:33 PM CDTSpecial Weather StatementMEGHenry27 min
Oct 15, 4:42 PM CDTSevere Thunderstorm WarningMEGLauderdale, Tipton48 min
Oct 15, 4:55 PM CDTTornado WarningMEGLauderdale, Tipton23 min
Oct 15, 5:39 PM CDTSpecial Weather StatementMEGBenton36 min
Oct 15, 5:43 PM CDTSpecial Weather StatementMEGTipton47 min
Oct 15, 6:28 PM CDTSevere Thunderstorm WarningMEGChester, Hardeman, Haywood, Madison17 min
Oct 15, 6:43 PM CDTSevere Thunderstorm WarningMEGCarroll, Chester, Gibson, Hardeman, Henderson, Madison47 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.