Alert archive / Tennessee / Tornado Warnings in 2017

Tornado Warning 46, NWS Memphis, TN

August 31, 2017Fayette County, Hardeman County, Tennessee; Benton County, Tippah County, Mississippi

NWS Memphis, TN issued this tornado warning at Aug 31, 2017, 12:03 PM CDT for Fayette County, Hardeman County, Tennessee; Benton County, Tippah County, Mississippi. It was in force for 42 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 31, 2017, 12:03 PM CDT (17:03 UTC)
Expired
Aug 31, 2017, 12:45 PM CDT
In force
42 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Benton County, MS, Tippah County, MS, Fayette County, TN, Hardeman County, TN

The radar

The Memphis radar (KNQA), 90 km from the middle of the area, began a volume at 17:05 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
Aug 31, 11:13 AM CDTTornado WatchSPC11 hr

The nearest sounding before it

Little Rock, AR (KBYH), launched 12:00Z, 5.1 hours before the alert went out and 88 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 2017-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 20 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 2017-08-31The 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
20 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
525 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

380 
WFUS54 KMEG 311703
TORMEG
MSC009-139-TNC047-069-311745-
/O.NEW.KMEG.TO.W.0046.170831T1703Z-170831T1745Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Memphis TN
1203 PM CDT THU AUG 31 2017

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Northwestern Tippah County in northeastern Mississippi...
  Northeastern Benton County in northeastern Mississippi...
  Southeastern Fayette County in western Tennessee...
  Southwestern Hardeman County in western Tennessee...

* Until 1245 PM CDT
    
* At 1203 PM CDT, a severe thunderstorm producing a tornado was
  located 10 miles east of Canaan, or 10 miles north of Ripley,
  moving northwest at 25 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  Canaan around 1225 PM CDT. 
  Lagrange around 1245 PM CDT. 

Other locations impacted by this tornadic thunderstorm include Rogers
Springs, Saulsbury, Chalybeate, Brody, La Grange, Middleburg, Hickory
Valley, New Canaan, Brownfield and Grand Junction.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter or an interior room on the
lowest floor of a sturdy building. Avoid windows. If you are
outdoors, in a mobile home, or in a vehicle, move to the closest
substantial shelter and protect yourself from flying debris.

&&

LAT...LON 3483 8882 3474 8903 3520 8935 3524 8898
TIME...MOT...LOC 1703Z 142DEG 21KT 3488 8896 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$
1 follow-up statement
885 
WWUS54 KMEG 311726
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
1226 PM CDT THU AUG 31 2017

MSC139-311736-
/O.CAN.KMEG.TO.W.0046.000000T0000Z-170831T1745Z/
Tippah MS-
1226 PM CDT THU AUG 31 2017

...THE TORNADO WARNING FOR NORTHWESTERN TIPPAH COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 800 PM CDT for northeastern
Mississippi...and western Tennessee.

LAT...LON 3500 8901 3499 8902 3491 8902 3487 8912
      3520 8935 3524 8898
TIME...MOT...LOC 1726Z 142DEG 21KT 3499 8906 

$$

MSC009-TNC047-069-311745-
/O.CON.KMEG.TO.W.0046.000000T0000Z-170831T1745Z/
Benton MS-Fayette TN-Hardeman TN-
1226 PM CDT THU AUG 31 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT FOR
NORTHEASTERN BENTON...SOUTHEASTERN FAYETTE AND SOUTHWESTERN HARDEMAN
COUNTIES...
    
At 1226 PM CDT, a severe thunderstorm producing a tornado was located
near Canaan, or 19 miles north of Ripley, moving northwest at 25 mph.

HAZARD...Tornado. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This dangerous storm will be near...
  Lagrange around 1245 PM CDT. 

Other locations impacted by this tornadic thunderstorm include
Saulsbury, Brody, Grand Junction, La Grange, Hamilton,
Pattersonville, Van Buren, Middleburg, Hickory Valley and New Canaan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter or an interior room on the
lowest floor of a sturdy building. Avoid windows. If you are
outdoors, in a mobile home, or in a vehicle, move to the closest
substantial shelter and protect yourself from flying debris.

&&

LAT...LON 3500 8901 3499 8902 3491 8902 3487 8912
      3520 8935 3524 8898
TIME...MOT...LOC 1726Z 142DEG 21KT 3499 8906 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 30, 9:13 PM CDTRiver Flood WarningMEGHardeman62 hr
Aug 31, 8:22 AM CDTFlash Flood WarningMEGDyer, Lauderdale3 hr
Aug 31, 12:01 PM CDTTornado WarningMEGFayette44 min
Aug 31, 12:43 PM CDTTornado WarningMEGFayette, Hardeman47 min
Aug 31, 12:49 PM CDTTornado WarningMEGShelby41 min
Aug 31, 1:24 PM CDTFlash Flood WarningMEGShelby3 hr
Aug 31, 1:49 PM CDTTornado WarningMEGFayette, Hardeman41 min
Aug 31, 2:36 PM CDTFlash Flood WarningMEGFayette, Hardeman9 hr
Aug 31, 2:47 PM CDTTornado WarningMEGHardin, McNairy43 min
Aug 31, 3:08 PM CDTFlash Flood WarningMEGShelby9 hr
Aug 31, 3:10 PM CDTTornado Warning Tornado observedMEGHardin, McNairy32 min
Aug 31, 3:23 PM CDTTornado WarningMEGDecatur52 min
Aug 31, 3:26 PM CDTTornado WarningMEGChester, McNairy25 min
Aug 31, 3:29 PM CDTTornado WarningMEGHardeman16 min
Aug 31, 4:43 PM CDTFlash Flood WarningMEGShelby6 hr
Aug 31, 5:21 PM CDTFlash Flood WarningMEGChester, Fayette, Hardeman, Hardin, Haywood, Henderson and 3 more6 hr
Aug 31, 6:08 PM CDTFlash Flood WarningMEGBenton, Carroll, Chester, Decatur, Hardin, Henderson and 1 more6 hr
Aug 31, 9:45 AM CDTSpecial Weather StatementMEGTate30 min
Aug 31, 9:53 AM CDTTornado WarningMEGTate18 min
Aug 31, 10:17 AM CDTSpecial Weather StatementMEGTunica43 min
Aug 31, 10:31 AM CDTSpecial Weather StatementMEGYalobusha44 min
Aug 31, 10:37 AM CDTSevere Thunderstorm WarningMEGPanola, Yalobusha23 min
Aug 31, 10:51 AM CDTTornado WarningMEGChickasaw, Lee, Pontotoc39 min
Aug 31, 10:55 AM CDTSevere Thunderstorm WarningMEGPanola, Yalobusha50 min
Aug 31, 11:09 AM CDTSevere Thunderstorm WarningMEGLafayette, Marshall38 min
Aug 31, 11:21 AM CDTTornado WarningMEGBenton, Tippah, Union39 min
Aug 31, 11:22 AM CDTTornado WarningMEGBenton53 min
Aug 31, 11:24 AM CDTTornado WarningMEGPanola51 min
Aug 31, 11:29 AM CDTTornado WarningMEGLee, Pontotoc, Union31 min
Aug 31, 11:36 AM CDTTornado WarningMEGPanola, Quitman, Tate, Tunica39 min
Aug 31, 11:40 AM CDTTornado WarningMEGCalhoun, Chickasaw35 min
Aug 31, 11:57 AM CDTTornado WarningMEGTate48 min
Aug 31, 11:58 AM CDTTornado WarningMEGBenton, Pontotoc, Tippah, Union32 min
Aug 31, 12:14 PM CDTTornado WarningMEGCalhoun, Chickasaw, Lafayette, Pontotoc31 min
Aug 31, 12:31 PM CDTTornado WarningMEGBenton, Tippah, Union29 min
Aug 31, 12:33 PM CDTTornado WarningMEGPanola, Tate, Tunica42 min
Aug 31, 12:44 PM CDTTornado WarningMEGLafayette, Pontotoc, Union31 min
Aug 31, 12:55 PM CDTTornado WarningMEGBenton, Tippah50 min
Aug 31, 1:02 PM CDTFlash Flood WarningMEGPanola, Quitman, Tate, Tunica6 hr
Aug 31, 1:07 PM CDTTornado WarningMEGItawamba, Lee38 min
Aug 31, 1:07 PM CDTTornado WarningMEGLee, Pontotoc, Union38 min
Aug 31, 1:23 PM CDTTornado WarningMEGPrentiss52 min
Aug 31, 1:37 PM CDTTornado WarningMEGLee, Prentiss, Tippah, Union38 min
Aug 31, 1:57 PM CDTTornado WarningMEGAlcorn18 min
Aug 31, 2:02 PM CDTTornado WarningMEGTippah43 min
Aug 31, 2:12 PM CDTTornado WarningMEGChickasaw, Pontotoc28 min
Aug 31, 2:26 PM CDTTornado WarningMEGTishomingo34 min
Aug 31, 2:51 PM CDTFlash Flood WarningMEGLafayette, Marshall3 hr
Aug 31, 3:15 PM CDTFlash Flood WarningMEGDeSoto, Lafayette, Marshall, Panola, Tate3 hr
Aug 31, 3:31 PM CDTFlash Flood WarningMEGBenton, DeSoto, Marshall9 hr
Aug 31, 4:32 PM CDTSevere Thunderstorm WarningMEGAlcorn, Prentiss, Tippah28 min
Aug 31, 4:59 PM CDTSevere Thunderstorm WarningMEGAlcorn, Prentiss, Tippah26 min
Aug 31, 5:45 PM CDTFlash Flood WarningMEGCoahoma, DeSoto, Lafayette, Marshall, Panola, Quitman and 2 more6 hr

Nearby

Tornado Warnings in Tennessee, 2017Tornado Warnings in Mississippi, 2017Every tornado warning in 2017Tornadoes 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.