Alert archive / Tennessee / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 21, NWS Memphis, TN

January 22, 2012Pemiscot County, Missouri; Dyer County, Lake County, Obion County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Jan 22, 2012, 9:23 PM CST for Pemiscot County, Missouri; Dyer County, Lake County, Obion County, Tennessee. It was in force for 52 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: Jan 22, 2012, 9:23 PM CST (03:23 UTC)
Expired: Jan 22, 2012, 10:15 PM CST
In force: 52 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon

Counties Pemiscot County, MO, Dyer County, TN, Lake County, TN, Obion County, TN

The radar

The Paducah radar (KPAH), 107 km from the middle of the area, began a volume at 03:27 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.

Issued	Product	Office	Lasted
Jan 22, 5:16 PM CST	Tornado Watch PDS	SPC	6 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 3.4 hours before the alert went out and 172 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 998 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 455 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 475 m²/s²
0-3 km storm-relative helicity: 474 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 10.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

448 
WUUS54 KMEG 230323
SVRMEG
MOC155-TNC045-095-131-230415-
/O.NEW.KMEG.SV.W.0021.120123T0323Z-120123T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
923 PM CST SUN JAN 22 2012

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN DYER COUNTY IN NORTHWEST TENNESSEE...
  LAKE COUNTY IN NORTHWEST TENNESSEE...
  WESTERN OBION COUNTY IN NORTHWEST TENNESSEE...
  PEMISCOT COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 1015 PM CST

* AT 923 PM CST...TRAINED WEATHER SPOTTERS REPORTED A LINE OF SEVERE
  THUNDERSTORMS PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 8 MILES NORTH OF TIPTONVILLE TO HAYTI TO WEST HERMONDALE...OR
  ALONG A LINE EXTENDING FROM 7 MILES SOUTH OF NEW MADRID TO HAYTI TO
  GOSNELL...AND MOVING EAST AT 35 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  CARUTHERSVILLE...COOTER...DEERING...DENTON...HAYTI...HAYTI
  HEIGHTS...HAYWARD...HOMESTOWN...STEELE...WARDELL...CLAYTON...
  CLOVERDALE...COTTONWOOD GROVE AND HELOISE.

 THIS WARNING ALSO INCLUDES AREAS NEAR REELFOOT LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A STORM SHELTER OR SMALL INTERIOR ROOM.

&&

LAT...LON 3600 8946 3600 8996 3609 8996 3639 8981
      3639 8976 3643 8973 3640 8968 3642 8961
      3635 8953 3638 8952 3643 8955 3646 8953
      3650 8954 3650 8948 3647 8949 3646 8946
      3650 8941 3651 8905
TIME...MOT...LOC 0323Z 267DEG 31KT 3649 8950 3624 8971
          3602 8991

$$


WRB/RRH

1 follow-up statement

898 
WWUS54 KMEG 230349
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
949 PM CST SUN JAN 22 2012

MOC155-TNC045-095-131-230415-
/O.CON.KMEG.SV.W.0021.000000T0000Z-120123T0415Z/
PEMISCOT MO-DYER TN-LAKE TN-OBION TN-
949 PM CST SUN JAN 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CST
FOR WESTERN OBION...LAKE...NORTHWESTERN DYER AND SOUTHEASTERN
PEMISCOT COUNTIES...

AT 950 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM WALNUT LOG TO COTTONWOOD GROVE TO HELOISE...OR ALONG A LINE
EXTENDING FROM 8 MILES SOUTHWEST OF HICKMAN TO 8 MILES NORTHEAST OF
CARUTHERSVILLE TO 10 MILES EAST OF STEELE...MOVING EAST AT 35 MPH.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CARUTHERSVILLE...COOTER...CLAYTON...CLOVERDALE...COTTONWOOD GROVE...
CRONANVILLE...HELOISE...HORNBEAK...MILLSFIELD...MISTON...RIDGELY...
SAMBURG...TIPTONVILLE AND WOODLAND MILLS.

 THIS WARNING ALSO INCLUDES AREAS NEAR REELFOOT LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A STORM SHELTER OR SMALL INTERIOR ROOM.

&&

LAT...LON 3600 8946 3600 8987 3637 8956 3635 8953
      3638 8952 3643 8955 3646 8953 3650 8954
      3650 8948 3647 8949 3646 8946 3650 8941
      3651 8905
TIME...MOT...LOC 0350Z 266DEG 31KT 3650 8925 3624 8948
          3603 8962

$$


WRB/RRH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 22, 8:27 PM CST	Severe Thunderstorm Warning	MEG	Dunklin, Pemiscot	63 min
Jan 22, 8:44 PM CST	Severe Thunderstorm Warning	MEG	Dunklin	61 min
Jan 22, 9:20 PM CST	Severe Thunderstorm Warning	MEG	Dyer, Lauderdale, Shelby, Tipton	55 min
Jan 22, 9:33 PM CST	Severe Thunderstorm Warning	MEG	Crockett, Dyer, Haywood, Lauderdale	27 min
Jan 22, 9:42 PM CST	Severe Thunderstorm Warning	MEG	Dyer, Gibson, Obion, Weakley	33 min
Jan 22, 9:47 PM CST	Tornado Warning	MEG	Crockett, Gibson, Haywood	43 min
Jan 22, 9:55 PM CST	Tornado Warning	MEG	Shelby	22 min
Jan 22, 10:08 PM CST	Tornado Warning	MEG	Gibson, Obion, Weakley	37 min
Jan 22, 10:10 PM CST	Tornado Warning	MEG	Shelby	35 min
Jan 22, 10:14 PM CST	Severe Thunderstorm Warning	MEG	Crockett, Haywood, Lauderdale, Shelby, Tipton	46 min
Jan 22, 10:27 PM CST	Tornado Warning	MEG	Fayette, Shelby	48 min
Jan 22, 10:39 PM CST	Tornado Warning	MEG	Henry, Weakley	36 min
Jan 22, 10:47 PM CST	Severe Thunderstorm Warning	MEG	Crockett, Gibson, Haywood, Madison, Tipton	43 min
Jan 22, 11:10 PM CST	Severe Thunderstorm Warning	MEG	Chester, Fayette, Hardeman, Haywood, McNairy, Madison	45 min
Jan 22, 11:14 PM CST	Severe Thunderstorm Warning	MEG	Hardeman	46 min
Jan 22, 11:22 PM CST	Severe Thunderstorm Warning	MEG	Carroll, Chester, Crockett, Decatur, Gibson, Haywood and 2 more	53 min
Jan 22, 11:27 PM CST	Severe Thunderstorm Warning	MEG	Decatur, Hardin, McNairy	48 min
Jan 22, 11:40 PM CST	Tornado Warning	MEG	Hardin, McNairy	33 min
Jan 22, 11:46 PM CST	Severe Thunderstorm Warning	MEG	Chester, Decatur, Hardin, Henderson, McNairy	44 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2012 Severe Thunderstorm Warnings in Missouri, 2012 Every severe thunderstorm warning in 2012

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.