Alert archive / Tennessee / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 13, NWS Memphis, TN

February 7, 2017Chester County, Henderson County, Madison County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Feb 7, 2017, 8:02 AM CST for Chester County, Henderson County, Madison County, Tennessee. It was in force for 43 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
Feb 7, 2017, 8:02 AM CST (14:02 UTC)
Expired
Feb 7, 2017, 8:45 AM CST
In force
43 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Chester County, TN, Henderson County, TN, Madison County, TN

The radar

The Memphis radar (KNQA), 102 km from the middle of the area, began a volume at 14:02 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 (KBYH), launched 12:00Z, 2.0 hours before the alert went out and 133 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 2017-02-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1313 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 2017-02-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 408 square meters per square second.19395878Sfc1 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
1313 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
797 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
408 m²/s²
0-3 km storm-relative helicity
384 m²/s²
Significant tornado parameter
2.3
Supercell composite
11.9

Open this sounding in Storm Lab

The text

As transmitted.

110 
WUUS54 KMEG 071402
SVRMEG
TNC023-077-113-071445-
/O.NEW.KMEG.SV.W.0013.170207T1402Z-170207T1445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
802 AM CST TUE FEB 7 2017

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Central Henderson County in western Tennessee...
  Madison County in western Tennessee...
  Northern Chester County in western Tennessee...

* Until 845 AM CST

* At 801 AM CST, a severe thunderstorm was located near Mercer, or 13
  miles southwest of Jackson, moving east at 50 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Jackson, Lexington, Henderson, Bemis, Reagan, Jacks Creek, Mifflin,
  Mercer, Medon, Neely, Pinson, Huntersville, Beech Bluff, Westover,
  Madison Hall, Uptonville, Juno, Roby, Maple Grove and Middle Fork.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3543 8906 3562 8907 3572 8833 3545 8832
TIME...MOT...LOC 1401Z 263DEG 44KT 3553 8903 

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

WOODALL
2 follow-up statements
602 
WWUS54 KMEG 071423
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
823 AM CST TUE FEB 7 2017

TNC023-077-113-071445-
/O.CON.KMEG.SV.W.0013.000000T0000Z-170207T1445Z/
Henderson TN-Madison TN-Chester TN-
823 AM CST TUE FEB 7 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CST
FOR CENTRAL HENDERSON...SOUTHEASTERN MADISON AND NORTHERN CHESTER
COUNTIES...

At 823 AM CST, a severe thunderstorm was located near Mifflin, or 8
miles southeast of Jackson, moving east at 50 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

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

Locations impacted include...
Jackson, Lexington, Henderson, Reagan, Jacks Creek, Mifflin, Medon,
Pinson, Beech Bluff, Madison Hall, Juno, Roby, Maple Grove, Middle
Fork, Timberlake, Hinson Springs, East Union, Malesus, Parkburg and
Huron.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3543 8890 3566 8876 3572 8833 3545 8832
TIME...MOT...LOC 1423Z 263DEG 44KT 3556 8870 

HAIL...<.75IN
WIND...60MPH
 
$$
188 
WWUS54 KMEG 071438
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
838 AM CST TUE FEB 7 2017

TNC023-077-113-071448-
/O.EXP.KMEG.SV.W.0013.000000T0000Z-170207T1445Z/
Henderson TN-Madison TN-Chester TN-
838 AM CST TUE FEB 7 2017

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL HENDERSON...
SOUTHEASTERN MADISON AND NORTHERN CHESTER COUNTIES WILL EXPIRE AT 845
AM CST...
                
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

LAT...LON 3543 8890 3566 8876 3572 8833 3545 8832
TIME...MOT...LOC 1438Z 263DEG 44KT 3558 8849 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 7, 1:47 AM CSTSpecial Weather StatementMEGLauderdale, Shelby, Tipton43 min
Feb 7, 2:31 AM CSTSpecial Weather StatementMEGCrockett, Gibson, Haywood, Tipton44 min
Feb 7, 2:34 AM CSTSevere Thunderstorm WarningMEGShelby, Tipton26 min
Feb 7, 2:51 AM CSTSevere Thunderstorm WarningMEGTipton8 min
Feb 7, 3:11 AM CSTSpecial Weather StatementMEGChester49 min
Feb 7, 3:14 AM CSTSpecial Weather StatementMEGCarroll, Crockett, Gibson, Henry61 min
Feb 7, 3:27 AM CSTSpecial Weather StatementMEGWeakley48 min
Feb 7, 4:07 AM CSTSpecial Weather StatementMEGBenton38 min
Feb 7, 6:49 AM CSTSevere Thunderstorm WarningMEGShelby41 min
Feb 7, 8:18 AM CSTSpecial Weather StatementMEGShelby, Tipton27 min
Feb 7, 8:41 AM CSTSpecial Weather StatementMEGChester34 min
Feb 7, 8:50 AM CSTSpecial Weather StatementMEGDecatur10 min
Feb 7, 9:07 AM CSTSpecial Weather StatementMEGDecatur23 min
Feb 7, 9:10 AM CSTSpecial Weather StatementMEGMadison35 min
Feb 7, 9:19 AM CSTSpecial Weather StatementMEGFayette, Hardeman26 min
Feb 7, 9:58 AM CSTSpecial Weather StatementMEGChester, Decatur, Hardin, McNairy47 min
Feb 7, 10:00 AM CSTSevere Thunderstorm WarningMEGChester, Decatur, Hardin, Henderson, McNairy45 min
Feb 7, 10:42 AM CSTSpecial Weather StatementMEGHardin18 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2017Every severe thunderstorm warning in 2017

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.