Alert archive / Tennessee / Tornado Warnings in 2011

Tornado Warning 175, NWS Memphis, TN

May 25, 20115 counties in Tennessee

NWS Memphis, TN issued this tornado warning at May 25, 2011, 9:31 PM CDT for 5 counties in Tennessee. It was in force for 44 min. 1 report 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: May 25, 2011, 9:31 PM CDT (02:31 UTC)
Expired: May 25, 2011, 10:15 PM CDT
In force: 44 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon

Counties Chester County, TN, Decatur County, TN, Hardin County, TN, Henderson County, TN, McNairy County, TN

The radar

The Memphis radar (KNQA), 163 km from the middle of the area, began a volume at 02:32 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

Time	Report	Where	Remark
May 25, 9:40 PM CDT	TSTM WND DMG	Adamsville, TN	POSSIBLE TORNADO. MULTIPLE TREES AND LINES DOWN ACROSS THE COUNTY. INDUSTRIAL BUILDINGS DAMAGED.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 25, 8:33 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 2.5 hours before the alert went out and 157 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: 1870 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1479 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 212 m²/s²
0-3 km storm-relative helicity: 334 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 14.1

Open this sounding in Storm Lab

The text

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

646 
WFUS54 KMEG 260231
TORMEG
TNC023-039-071-077-109-260315-
/O.NEW.KMEG.TO.W.0175.110526T0231Z-110526T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
931 PM CDT WED MAY 25 2011

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN DECATUR COUNTY IN TENNESSEE...
  EAST CENTRAL CHESTER COUNTY IN SOUTHWEST TENNESSEE...
  NORTHERN HARDIN COUNTY IN SOUTHWEST TENNESSEE...
  EXTREME SOUTHEASTERN HENDERSON COUNTY IN SOUTHWEST TENNESSEE...
  NORTHEASTERN MCNAIRY COUNTY IN SOUTHWEST TENNESSEE...

* UNTIL 1015 PM CDT

* AT 932 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING A TORNADO NEAR ADAMSVILLE...OR 7
  MILES NORTHEAST OF SELMER...MOVING NORTHEAST AT 55 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SAVANNAH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.THE SAFEST PLACE TO BE DURING A TORNADO IS IN A STORM SHELTER. IF NO
STORM SHELTER IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

.TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 3539 8798 3538 8802 3535 8800 3531 8801
      3530 8798 3521 8798 3512 8857 3537 8861
      3552 8797 3549 8797 3546 8804 3543 8803
      3543 8800 3541 8796
TIME...MOT...LOC 0232Z 240DEG 47KT 3526 8843

$$

1 follow-up statement

328 
WWUS54 KMEG 260251 RRA
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
951 PM CDT WED MAY 25 2011

TNC023-109-260301-
/O.CAN.KMEG.TO.W.0175.000000T0000Z-110526T0315Z/
CHESTER TN-MCNAIRY TN-
951 PM CDT WED MAY 25 2011

...THE TORNADO WARNING FOR NORTHEASTERN MCNAIRY AND EAST CENTRAL
CHESTER COUNTIES IS CANCELLED...

AT 951 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE 
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA 
AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY. 
THEREFORE...THE TORNADO WARNING IS CANCELLED.

.A TORNADO WATCH ALSO REMAINS IN EFFECT FOR THE ALERT AREA.

LAT...LON 3539 8798 3538 8802 3535 8800 3531 8801
      3530 8798 3527 8798 3521 8836 3543 8835
      3552 8797 3549 8797 3546 8804 3543 8803
      3543 8800 3541 8796
TIME...MOT...LOC 0251Z 240DEG 47KT 3538 8816

$$

TNC039-071-077-260315-
/O.CON.KMEG.TO.W.0175.000000T0000Z-110526T0315Z/
DECATUR TN-HENDERSON TN-HARDIN TN-
951 PM CDT WED MAY 25 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR NORTHERN
HARDIN...EXTREME SOUTHEASTERN HENDERSON AND SOUTHERN DECATUR
COUNTIES...

AT 951 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR SALTILLO...OR 10
MILES NORTH OF SAVANNAH...MOVING NORTHEAST AT 55 MPH.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CRUMP...
SALTILLO...FIVE FORKS...RED WALNUT...MONTGOMERY...DUNBAR...BATH
SPRINGS...THURMAN...PLEASANT GROVE...SWIFT...CERRO GORDO...
BUCKTOWN...PHILLIPS AND OLIVEHILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A STORM SHELTER. IF NO
STORM SHELTER IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

.TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

.A TORNADO WATCH ALSO REMAINS IN EFFECT FOR THE ALERT AREA.

&&

LAT...LON 3539 8798 3538 8802 3535 8800 3531 8801
      3530 8798 3527 8798 3521 8836 3543 8835
      3552 8797 3549 8797 3546 8804 3543 8803
      3543 8800 3541 8796
TIME...MOT...LOC 0251Z 240DEG 47KT 3538 8816

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 7:08 PM CDT	Severe Thunderstorm Warning	MEG	Crockett, Dyer, Haywood, Lauderdale, Tipton	39 min
May 25, 7:09 PM CDT	Tornado Warning	MEG	Dyer, Lake, Obion, Weakley	51 min
May 25, 7:10 PM CDT	Tornado Warning	MEG	Fayette, Shelby, Tipton	50 min
May 25, 7:28 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Shelby	47 min
May 25, 7:29 PM CDT	Tornado Warning	MEG	Fayette, Haywood, Lauderdale, Shelby, Tipton	46 min
May 25, 7:58 PM CDT	Tornado Warning	MEG	Obion, Weakley	17 min
May 25, 8:05 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Hardeman, Shelby	40 min
May 25, 8:07 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Hardeman, Haywood, Tipton	53 min
May 25, 9:41 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Decatur, Henderson	49 min
May 25, 10:19 PM CDT	Severe Thunderstorm Warning	MEG	Hardin	41 min
May 25, 10:32 PM CDT	Tornado Warning	MEG	Hardin, McNairy	26 min

Nearby

Tornado Warnings in Tennessee, 2011 Every tornado warning in 2011 Tornadoes in 2011

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.