Alert archive / Missouri / Tornado Warnings in 2016

Tornado Warning 22, NWS Memphis, TN

December 17, 2016Pemiscot County, Missouri

NWS Memphis, TN issued this tornado warning at Dec 17, 2016, 4:45 PM CST for Pemiscot County, Missouri. It was in force for 23 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 17, 2016, 4:45 PM CST (22:45 UTC)
Expired
Dec 17, 2016, 5:08 PM CST
In force
23 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Observed
Hail
0.75 in

County Pemiscot County, MO

The radar

The Paducah radar (KPAH), 114 km from the middle of the area, began a volume at 22:45 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
Dec 17, 1:42 PM CSTTornado WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KBYH), launched 12:00Z, 10.8 hours before the alert went out and 173 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 2016-12-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 200 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 2016-12-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 320 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
200 J/kg
Mixed-layer CIN
-240 J/kg
Mixed-layer LCL
834 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
320 m²/s²
0-3 km storm-relative helicity
327 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

933 
WFUS54 KMEG 172245
TORMEG
MOC155-172330-
/O.NEW.KMEG.TO.W.0022.161217T2245Z-161217T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Memphis TN
445 PM CST SAT DEC 17 2016

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Northern Pemiscot County in southeastern Missouri...

* Until 530 PM CST

* At 444 PM CST, a confirmed tornado was located over Kennett, moving
  northeast at 35 mph.

  HAZARD...Damaging tornado. 

  SOURCE...Law enforcement 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...
  Wardell and Bolton around 505 PM CST. 
  Portageville around 515 PM CST. 

Other locations impacted by this tornadic thunderstorm include North
Wardell, Hayward, Bragg City, Homestown, Bakerville, Peach Orchard,
Stanley, Pascola, Swift and Stewart.

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 3642 8970 3640 8967 3640 8964 3641 8961
      3640 8959 3634 8955 3634 8961 3633 8962
      3631 8961 3618 8996 3637 8996 3639 8991
      3639 8975 3642 8974 3643 8973
TIME...MOT...LOC 2244Z 242DEG 32KT 3625 9000 

TORNADO...OBSERVED
HAIL...<.75IN

$$
2 follow-up statements
207 
WWUS54 KMEG 172253
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
453 PM CST SAT DEC 17 2016

MOC155-172330-
/O.CON.KMEG.TO.W.0022.000000T0000Z-161217T2330Z/
Pemiscot MO-
453 PM CST SAT DEC 17 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CST FOR NORTHERN
PEMISCOT COUNTY...
    
At 453 PM CST, a confirmed tornado was located near Deering, or 8
miles northeast of Kennett, moving northeast at 35 mph.

HAZARD...Damaging tornado. 

SOURCE...Emergency management 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 tornado will be near...
  Wardell and Bolton around 505 PM CST. 
  Portageville around 515 PM CST. 

Other locations impacted by this tornadic thunderstorm include North
Wardell, Hayward, Bragg City, Homestown, Bakerville, Peach Orchard,
Stanley, Pascola, Swift and Stewart.

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.

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

&&

LAT...LON 3642 8970 3640 8967 3640 8964 3641 8961
      3640 8959 3634 8955 3634 8961 3633 8962
      3631 8961 3618 8996 3637 8996 3639 8991
      3639 8975 3642 8974 3643 8973
TIME...MOT...LOC 2253Z 242DEG 32KT 3629 8991 

TORNADO...OBSERVED
HAIL...<.75IN

$$
551 
WWUS54 KMEG 172308
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
508 PM CST SAT DEC 17 2016

MOC155-172318-
/O.CAN.KMEG.TO.W.0022.000000T0000Z-161217T2330Z/
Pemiscot MO-
508 PM CST SAT DEC 17 2016

...THE TORNADO WARNING FOR NORTHERN PEMISCOT COUNTY IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and is no longer producing a tornado. Therefore, the warning
has been cancelled.  However gusty winds and heavy rain are still
possible with this thunderstorm.

A tornado watch remains in effect until 900 PM CST for southeastern
Missouri...and western Tennessee.

LAT...LON 3642 8970 3640 8967 3640 8964 3641 8961
      3640 8959 3634 8955 3634 8961 3633 8962
      3631 8961 3618 8996 3637 8996 3639 8991
      3639 8975 3642 8974 3643 8973
TIME...MOT...LOC 2307Z 242DEG 32KT 3635 8976 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 17, 12:16 PM CSTWinter Weather AdvisoryMEGDunklin, Pemiscot18 hr
Dec 17, 2:04 PM CSTSpecial Weather StatementMEGDunklin26 min
Dec 17, 2:21 PM CSTSevere Thunderstorm WarningMEGDunklin, Pemiscot39 min
Dec 17, 2:51 PM CSTSevere Thunderstorm WarningMEGPemiscot24 min
Dec 17, 3:13 PM CSTSpecial Weather StatementMEGDunklin32 min
Dec 17, 3:25 PM CSTSevere Thunderstorm WarningMEGDunklin7 min
Dec 17, 4:27 PM CSTSevere Thunderstorm WarningMEGDunklin, Pemiscot48 min
Dec 17, 4:34 PM CSTTornado WarningMEGDunklin26 min
Dec 17, 5:04 PM CSTSevere Thunderstorm WarningMEGPemiscot41 min
Dec 17, 5:51 PM CSTSevere Thunderstorm WarningMEGPemiscot39 min

Nearby

Tornado Warnings in Missouri, 2016Every tornado warning in 2016Tornadoes in 2016

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.