Alert archive / Mississippi / Tornado Warnings in 2018

Tornado Warning 53, NWS Memphis, TN

December 1, 2018Coahoma County, Quitman County, Mississippi

NWS Memphis, TN issued this tornado warning at Dec 1, 2018, 7:23 AM CST for Coahoma County, Quitman County, Mississippi. It was in force for 37 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
Dec 1, 2018, 7:23 AM CST (13:23 UTC)
Expired
Dec 1, 2018, 8:00 AM CST
In force
37 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.5 in

Counties Coahoma County, MS, Quitman County, MS

The radar

The Memphis radar (KNQA), 130 km from the middle of the area, began a volume at 13:26 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, 1.4 hours before the alert went out and 74 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 2018-12-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 101 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 2018-12-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -33 square meters per square second.1939587897117136Sfc1 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
101 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
793 m above ground
0-6 km bulk shear
80 kt
0-1 km storm-relative helicity
-33 m²/s²
0-3 km storm-relative helicity
61 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.7

Open this sounding in Storm Lab

The text

As transmitted.

795 
WFUS54 KMEG 011323
TORMEG
MSC027-119-011400-
/O.NEW.KMEG.TO.W.0053.181201T1323Z-181201T1400Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Memphis TN
723 AM CST SAT DEC 1 2018

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Southeastern Coahoma County in northwestern Mississippi...
  Southern Quitman County in northwestern Mississippi...

* Until 800 AM CST.
    
* At 723 AM CST, doppler radar indicated a severe thunderstorm
  producing a tornado was located near Clarksdale, moving northeast
  at 65 mph.

  HAZARD...Tornado and ping pong ball size hail.

  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.

* Locations impacted include...
  Clarksdale, Marks, Lambert, Belen, Dublin, Darling, Lyon, West
  Marks, Mattson, Hopson, Barksdale, Denton, Riverview, Hinchcliff,
  Sabino, Lurand, Essex and Claremont.

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 3406 9062 3423 9063 3439 9020 3434 9020
      3434 9019 3430 9019 3429 9018 3415 9014
TIME...MOT...LOC 1323Z 241DEG 57KT 3416 9053 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$
2 follow-up statements
412 
WWUS54 KMEG 011338
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
738 AM CST SAT DEC 1 2018

MSC027-011347-
/O.CAN.KMEG.TO.W.0053.000000T0000Z-181201T1400Z/
Coahoma MS-
738 AM CST SAT DEC 1 2018

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

LAT...LON 3414 9045 3426 9045 3426 9040 3432 9040
      3439 9020 3434 9020 3434 9019 3430 9019
      3426 9017 3420 9016
TIME...MOT...LOC 1337Z 241DEG 57KT 3427 9029 

$$

MSC119-011400-
/O.CON.KMEG.TO.W.0053.000000T0000Z-181201T1400Z/
Quitman MS-
738 AM CST SAT DEC 1 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 AM CST FOR CENTRAL
QUITMAN COUNTY...
    
At 737 AM CST, doppler radar indicated a severe thunderstorm
producing a tornado was located over Marks, or 17 miles east of
Clarksdale, moving northeast at 65 mph.

HAZARD...Tornado and ping pong ball size hail.

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.

Locations impacted include...
Marks, Lambert, Belen, Darling, West Marks, Sabino, Barksdale, Essex,
Riverview and Hinchcliff.

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3414 9045 3426 9045 3426 9040 3432 9040
      3439 9020 3434 9020 3434 9019 3430 9019
      3426 9017 3420 9016
TIME...MOT...LOC 1337Z 241DEG 57KT 3427 9029 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$
066 
WWUS54 KMEG 011350
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
750 AM CST SAT DEC 1 2018

MSC119-011400-
/O.EXP.KMEG.TO.W.0053.000000T0000Z-181201T1400Z/
Quitman MS-
750 AM CST SAT DEC 1 2018

...THE TORNADO WARNING FOR CENTRAL QUITMAN COUNTY WILL EXPIRE AT 800
AM CST...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 3414 9045 3426 9045 3426 9040 3432 9040
      3439 9020 3434 9020 3434 9019 3430 9019
      3426 9017 3420 9016
TIME...MOT...LOC 1350Z 241DEG 57KT 3437 9008 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 1, 5:56 AM CSTSevere Thunderstorm WarningMEGDeSoto, Tate, Tunica19 min
Dec 1, 6:24 AM CSTSpecial Weather StatementMEGTunica36 min
Dec 1, 6:36 AM CSTSevere Thunderstorm WarningMEGCoahoma, Quitman39 min
Dec 1, 6:52 AM CSTSpecial Weather StatementMEGTate53 min
Dec 1, 7:08 AM CSTSevere Thunderstorm WarningMEGCoahoma, Panola, Quitman, Tunica52 min
Dec 1, 7:53 AM CSTSevere Thunderstorm WarningMEGLafayette, Marshall, Panola, Tate52 min
Dec 1, 8:41 AM CSTSevere Thunderstorm WarningMEGBenton, Lafayette, Marshall, Tippah, Union49 min
Dec 1, 9:10 AM CSTSpecial Weather StatementMEGPanola35 min
Dec 1, 1:18 PM CSTSpecial Weather StatementMEGBenton27 min
Dec 1, 3:36 PM CSTSpecial Weather StatementMEGTishomingo24 min
Dec 1, 3:43 PM CSTSpecial Weather StatementMEGItawamba47 min
Dec 1, 3:51 PM CSTSpecial Weather StatementMEGMonroe54 min

Nearby

Tornado Warnings in Mississippi, 2018Every tornado warning in 2018Tornadoes in 2018

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.