Alert archive / Mississippi / Tornado Warnings in 2017

Tornado Warning 62, NWS Memphis, TN

August 31, 2017Chickasaw County, Pontotoc County, Mississippi

NWS Memphis, TN issued this tornado warning at Aug 31, 2017, 2:12 PM CDT for Chickasaw County, Pontotoc County, Mississippi. It was in force for 28 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, 2:12 PM CDT (19:12 UTC)
Expired
Aug 31, 2017, 2:40 PM CDT
In force
28 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Chickasaw County, MS, Pontotoc County, MS

The radar

The Columbus AFB radar (KGWX), 58 km from the middle of the area, began a volume at 19:13 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, 7.2 hours before the alert went out and 125 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.

556 
WFUS54 KMEG 311912
TORMEG
MSC017-115-312000-
/O.NEW.KMEG.TO.W.0062.170831T1912Z-170831T2000Z/

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

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Northeastern Chickasaw County in northeastern Mississippi...
  Eastern Pontotoc County in northeastern Mississippi...

* Until 300 PM CDT
    
* At 212 PM CDT, a severe thunderstorm producing a tornado was
  located 7 miles east of Houlka, or 7 miles west of Okolona, moving
  north at 30 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...
  Troy around 235 PM CDT. 
  Furrs around 240 PM CDT. 
  Trace State Park around 245 PM CDT. 
  Pontotoc around 250 PM CDT. 
  Ecru around 300 PM CDT. 

Other locations impacted by this tornadic thunderstorm include Nixon,
Chesterville, Hortontown, Endville, Cherry Creek, Van Vleet, Chiwapa,
Parkersburg, Algoma and Rough Edge.

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 3394 8882 3392 8898 3436 8910 3435 8883
TIME...MOT...LOC 1912Z 171DEG 27KT 3401 8889 

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

$$

WOODALL
2 follow-up statements
669 
WWUS54 KMEG 311927
SVSMEG

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

MSC017-311936-
/O.CAN.KMEG.TO.W.0062.000000T0000Z-170831T2000Z/
Chickasaw MS-
227 PM CDT THU AUG 31 2017

...THE TORNADO WARNING FOR NORTHEASTERN CHICKASAW 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.

LAT...LON 3409 8884 3408 8899 3435 8907 3435 8885
TIME...MOT...LOC 1926Z 171DEG 27KT 3412 8891 

$$

MSC115-312000-
/O.CON.KMEG.TO.W.0062.000000T0000Z-170831T2000Z/
Pontotoc MS-
227 PM CDT THU AUG 31 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR EASTERN
PONTOTOC COUNTY...
    
At 226 PM CDT, a severe thunderstorm producing a tornado was located 
3 miles south of Troy, or 11 miles south of Trace State Park, moving 
north at 30 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...
  Troy around 235 PM CDT. 
  Furrs around 240 PM CDT. 
  Trace State Park around 245 PM CDT. 
  Pontotoc around 250 PM CDT. 
  Ecru around 300 PM CDT. 

Other locations impacted by this tornadic thunderstorm include Nixon,
Endville, Rough Edge, Cherry Creek, Chiwapa and Algoma.

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 3409 8884 3408 8899 3435 8907 3435 8885
TIME...MOT...LOC 1926Z 171DEG 27KT 3412 8891 

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

$$

WOODALL
470 
WWUS54 KMEG 311940
SVSMEG

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

MSC115-311949-
/O.CAN.KMEG.TO.W.0062.000000T0000Z-170831T2000Z/
Pontotoc MS-
240 PM CDT THU AUG 31 2017

...THE TORNADO WARNING FOR EASTERN PONTOTOC COUNTY IS CANCELLED...
                
The storm which prompted the warning has weakened, and is no longer 
capable of producing a tornado. Therefore, the warning has been 
cancelled. However gusty winds are still possible with this 
thunderstorm.

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

LAT...LON 3409 8884 3408 8899 3435 8907 3435 8885
TIME...MOT...LOC 1937Z 171DEG 27KT 3422 8893 

$$

WOODALL

The office that day

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

IssuedProductOfficeCountiesLasted
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, 12:01 PM CDTTornado WarningMEGBenton, Marshall44 min
Aug 31, 12:03 PM CDTTornado WarningMEGBenton, Tippah42 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, 12:49 PM CDTTornado WarningMEGDeSoto41 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, 1:24 PM CDTFlash Flood WarningMEGDeSoto3 hr
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, 2:26 PM CDTTornado WarningMEGTishomingo34 min
Aug 31, 2:36 PM CDTFlash Flood WarningMEGBenton, Marshall, Tippah9 hr
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, 4:43 PM CDTFlash Flood WarningMEGDeSoto6 hr
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 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.