Alert archive / Mississippi / Tornado Warnings in 2017

Tornado Warning 20, NWS Memphis, TN

April 22, 2017Prentiss County, Tishomingo County, Mississippi

NWS Memphis, TN issued this tornado warning at Apr 22, 2017, 2:56 PM CDT for Prentiss County, Tishomingo County, Mississippi. It was in force for 34 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 22, 2017, 2:56 PM CDT (19:56 UTC)
Expired
Apr 22, 2017, 3:30 PM CDT
In force
34 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Observed
Hail
1.5 in

Counties Prentiss County, MS, Tishomingo County, MS

The radar

The Columbus AFB radar (KGWX), 71 km from the middle of the area, began a volume at 20:00 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.

What was reported inside it

TimeReportWhereRemark
Apr 22, 3:16 PM CDTFUNNEL CLOUD3 Wnw Belmont, MSROTATING WALL CLOUD REPORTED NEAR DENNIS, MS
Apr 22, 3:18 PM CDTTORNADOBelmont, MSPOSSIBLE TORNADO IN THE BELMONT AND GOLDEN VICINTY. THREE HOUSES WITH ROOFS TORN OFF. POWER LINES AND TREES DOWN. AN APARTMENT BUILDING AND FIVE ADDITIONAL HOUSES HAD MINOR ROOF DAMAGE. RAILROAD BLOCKED BY FALLEN TREE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Little Rock, AR (KBYH), launched 12:00Z, 7.9 hours before the alert went out and 153 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 2017-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 262 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
558 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
262 m²/s²
0-3 km storm-relative helicity
314 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

Open this sounding in Storm Lab

The text

As transmitted.

239 
WFUS54 KMEG 221956
TORMEG
MSC117-141-222030-
/O.NEW.KMEG.TO.W.0020.170422T1956Z-170422T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Memphis TN
256 PM CDT SAT APR 22 2017

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Southern Tishomingo County in northeastern Mississippi...
  Southeastern Prentiss County in northeastern Mississippi...

* Until 330 PM CDT

* At 256 PM CDT, a confirmed tornado was located near Burton, or 11
  miles west of Tishomingo State Park, moving east at 30 mph.

  HAZARD...Damaging tornado and ping pong ball size hail. 

  SOURCE...Public confirmed tornado. 

  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. 

* The tornado will be near...
  Burton around 305 PM CDT. 
  Belmont and Tishomingo around 315 PM CDT. 
  Tishomingo State Park around 320 PM CDT. 

Other locations impacted by this tornadic thunderstorm include Mingo,
Thrasher, Dennis, Moores Mill, Paden, Hobo Station, Petertown, Neil,
Carter Branch and Golden.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3446 8816 3447 8846 3448 8846 3463 8850
      3473 8812
TIME...MOT...LOC 1956Z 258DEG 27KT 3457 8839 

TORNADO...OBSERVED
HAIL...1.50IN

$$
1 follow-up statement
388 
WWUS54 KMEG 222017
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
317 PM CDT SAT APR 22 2017

MSC117-222027-
/O.CAN.KMEG.TO.W.0020.000000T0000Z-170422T2030Z/
Prentiss MS-
317 PM CDT SAT APR 22 2017

...THE TORNADO WARNING FOR SOUTHEASTERN PRENTISS COUNTY IS
CANCELLED...
    
The tornadic 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 900 PM CDT for
northeastern Mississippi.

LAT...LON 3446 8831 3462 8829 3463 8813 3446 8816
TIME...MOT...LOC 2017Z 275DEG 25KT 3453 8822 

$$

MSC141-222030-
/O.CON.KMEG.TO.W.0020.000000T0000Z-170422T2030Z/
Tishomingo MS-
317 PM CDT SAT APR 22 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR
SOUTHEASTERN TISHOMINGO COUNTY...
    
At 317 PM CDT, a confirmed tornado was located over Belmont, or near
Tishomingo State Park, moving east at 30 mph.

HAZARD...Damaging tornado and ping pong ball size hail. 

SOURCE...Public confirmed tornado. 

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 tornadic thunderstorm will remain over mainly rural areas of
southeastern Tishomingo County, including the following locations:
Bloody Springs, Neil, Dennis and Golden.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3446 8831 3462 8829 3463 8813 3446 8816
TIME...MOT...LOC 2017Z 275DEG 25KT 3453 8822 

TORNADO...OBSERVED
HAIL...1.50IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 7:44 PM CDTSpecial Weather StatementMEGPrentiss, Tishomingo61 min
Apr 21, 7:47 PM CDTTornado WarningMEGPrentiss, Tippah43 min
Apr 22, 2:15 PM CDTSpecial Weather StatementMEGAlcorn45 min
Apr 22, 2:34 PM CDTSpecial Weather StatementMEGPrentiss, Tishomingo41 min
Apr 22, 2:36 PM CDTSevere Thunderstorm WarningMEGPrentiss, Tishomingo39 min
Apr 22, 2:41 PM CDTTornado WarningMEGPrentiss, Tishomingo34 min
Apr 22, 2:45 PM CDTSevere Thunderstorm WarningMEGChickasaw, Itawamba, Lee, Monroe13 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.