Alert archive / Mississippi / Tornado Warnings in 2021

Tornado Warning 55, NWS Memphis, TN

August 21, 2021Tishomingo County, Mississippi

NWS Memphis, TN issued this tornado warning at Aug 21, 2021, 6:12 PM CDT for Tishomingo County, Mississippi. It was in force for 27 min. 4 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
Aug 21, 2021, 6:12 PM CDT (23:12 UTC)
Expired
Aug 21, 2021, 6:39 PM CDT
In force
27 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Observed
Hail
0.75 in

County Tishomingo County, MS

The radar

The Columbus AFB radar (KGWX), 97 km from the middle of the area, began a volume at 23:10 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
Aug 21, 6:15 PM CDTTORNADOIuka, MSNUMEROUS REPORTS OF DAMAGE TO TREES, POWERLINES, AND STRUCTURES.
Aug 21, 6:18 PM CDTTSTM WND DMG2 N Iuka, MSNUMEROUS TREES DOWN ON MAGNOLIA CIRCLE ON THE NORTH SIDE OF IUKA.
Aug 21, 6:20 PM CDTTSTM WND DMGIuka, MSDOWNED POWERLINES AND SOME STRUCTURAL DAMAGE IN DOWNTOWN IUKA.
Aug 21, 6:20 PM CDTTSTM WND DMGIuka, MSSEVERAL TREES DOWN IN THE VICINITY OF EASTPORT ST. AND PEARL ST. IN IUKA. DOWNED TREES ARE ON THE ROAD.

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 (KLZK), launched 12:00Z, 11.2 hours before the alert went out and 165 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 2021-08-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1244 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 2021-08-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -25 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
1244 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
1032 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-25 m²/s²
0-3 km storm-relative helicity
21 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

789 
WFUS54 KMEG 212312
TORMEG
MSC141-220000-
/O.NEW.KMEG.TO.W.0055.210821T2312Z-210822T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Memphis TN
612 PM CDT Sat Aug 21 2021

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Central Tishomingo County in northeastern Mississippi...

* Until 700 PM CDT.

* At 612 PM CDT, a confirmed tornado was located over Iuka, moving
  southeast at 25 mph.

  HAZARD...Damaging tornado.

  SOURCE...Weather spotters 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...
  Midway around 620 PM CDT.

Other locations impacted by this tornadic thunderstorm include Bacon
Springs, Oldham, Hazard Switch, Mingo, Blythe Crossing, Bloody
Springs, Petertown and Carter Branch.

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 3456 8814 3482 8831 3489 8811 3487 8810
      3485 8810
TIME...MOT...LOC 2312Z 325DEG 21KT 3481 8818 

TORNADO...OBSERVED
MAX HAIL SIZE...<.75 IN

$$

TLSJr
1 follow-up statement
749 
WWUS54 KMEG 212339
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
639 PM CDT Sat Aug 21 2021

MSC141-212349-
/O.CAN.KMEG.TO.W.0055.000000T0000Z-210822T0000Z/
Tishomingo MS-
639 PM CDT Sat Aug 21 2021

...THE TORNADO WARNING FOR CENTRAL TISHOMINGO COUNTY IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

LAT...LON 3456 8814 3482 8831 3489 8811 3487 8810
      3485 8810
TIME...MOT...LOC 2338Z 325DEG 21KT 3468 8807 

$$

TLSJr

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 3:30 AM CDTHeat AdvisoryMEGCoahoma, Quitman, Tallahatchie, Tunica16 hr
Aug 21, 1:05 PM CDTAreal Flood AdvisoryMEGPrentiss, Tishomingo115 min
Aug 21, 3:01 PM CDTHeat AdvisoryMEGCoahoma, Quitman, Tallahatchie, Tunica29 hr
Aug 21, 6:16 PM CDTAreal Flood AdvisoryMEGTishomingo3 hr

Nearby

Tornado Warnings in Mississippi, 2021Every tornado warning in 2021Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.