Alert archive / Tennessee / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 71, NWS Memphis, TN

March 2, 2012Hardin County, McNairy County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Mar 2, 2012, 3:39 PM CST for Hardin County, McNairy County, Tennessee. It was in force for 36 min. 7 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
Mar 2, 2012, 3:39 PM CST (21:39 UTC)
Expired
Mar 2, 2012, 4:15 PM CST
In force
36 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon

Counties Hardin County, TN, McNairy County, TN

The radar

The Columbus AFB radar (KGWX), 147 km from the middle of the area, began a volume at 21:39 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
Mar 2, 3:44 PM CSTHAIL 3Stantonville, TN
Mar 2, 3:45 PM CSTTSTM WND GST 60Stantonville, TNACCOMPANIED BY GOLFBALL HAIL ...NOTED IN PREVIOUS REPORT
Mar 2, 3:45 PM CSTHAIL 1.75Stantonville, TNGOLFBALL HAIL WITH 60 MPH WINDS PRODUCING SEVERE TREE DAMAGE AND BROKEN WINDOWS
Mar 2, 3:48 PM CSTFUNNEL CLOUD3 E Shiloh, TNROTATING FUNNEL CLOUD
Mar 2, 4:00 PM CSTTSTM WND DMGSavannah, TNA FEW SMALL TREES DOWN AND TREE LIMBS DOWN ALONG WITH SOME SHINGLE DAMAGE IN THE CRAVENS AREA OF SAVANNAH.
Mar 2, 4:00 PM CSTHAIL 1.253 Ese Savannah, TNHAIL FELL IN THE COMMUNITY OF OLIVET.
Mar 2, 4:08 PM CSTHAIL 1.257 E Savannah, TNHALF DOLLAR SIZE HAIL COVERING GROUND IN COMMUNITY OF OLIVE HILL.

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.

IssuedProductOfficeLasted
Mar 2, 1:20 PM CSTTornado WatchSPC9 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 9.7 hours before the alert went out and 169 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 2012-03-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1625 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 2012-03-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 291 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
1625 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
645 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
291 m²/s²
0-3 km storm-relative helicity
304 m²/s²
Significant tornado parameter
3.2
Supercell composite
11.9

Open this sounding in Storm Lab

The text

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

681 
WUUS54 KMEG 022139 RRA
SVRMEG
TNC071-109-022215-
/O.NEW.KMEG.SV.W.0071.120302T2139Z-120302T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
339 PM CST FRI MAR 2 2012

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL HARDIN COUNTY IN SOUTHWEST TENNESSEE...
  EAST CENTRAL MCNAIRY COUNTY IN SOUTHWEST TENNESSEE...

* UNTIL 415 PM CST

* AT 339 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING HALF DOLLAR SIZE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 8 MILES WEST OF
  SHILOH...OR 6 MILES SOUTHEAST OF SELMER...AND MOVING EAST AT 55
  MPH.

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

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.

.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.

&&

LAT...LON 3505 8853 3520 8857 3537 8802 3536 8800
      3531 8801 3529 8797 3526 8797 3511 8797
      3510 8798
TIME...MOT...LOC 2139Z 250DEG 50KT 3513 8846

$$
2 follow-up statements
236 
WWUS54 KMEG 022150
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
350 PM CST FRI MAR 2 2012

TNC109-022159-
/O.CAN.KMEG.SV.W.0071.000000T0000Z-120302T2215Z/
MCNAIRY TN-
350 PM CST FRI MAR 2 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MCNAIRY COUNTY IS
CANCELLED...

AT 349 PM CST...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 SEVERE THUNDERSTORM WARNING IS CANCELLED.

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

LAT...LON 3506 8837 3526 8837 3537 8802 3536 8800
      3531 8801 3529 8797 3511 8797 3510 8798
TIME...MOT...LOC 2149Z 251DEG 41KT 3517 8832

$$

TNC071-022215-
/O.CON.KMEG.SV.W.0071.000000T0000Z-120302T2215Z/
HARDIN TN-
350 PM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CST
FOR CENTRAL HARDIN COUNTY...

AT 349 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM PRODUCING GOLF BALL SIZE HAIL...AND
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED NEAR
HURLEY...OR 10 MILES SOUTHWEST OF SAVANNAH...MOVING EAST AT 45 MPH.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CRUMP...
SAVANNAH...CERRO GORDO...BUCKTOWN...PHILLIPS...WALKERTOWN...
OLIVEHILL...CENTER STAR...MADDOX...LOWRYVILLE...COFFEE LANDING...
PITTSBURG LANDING...HURLEY AND HAMBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.

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

&&

LAT...LON 3506 8837 3526 8837 3537 8802 3536 8800
      3531 8801 3529 8797 3511 8797 3510 8798
TIME...MOT...LOC 2149Z 251DEG 41KT 3517 8832

$$
096 
WWUS54 KMEG 022211 RRA
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
411 PM CST FRI MAR 2 2012

TNC071-022221-
/O.EXP.KMEG.SV.W.0071.000000T0000Z-120302T2215Z/
HARDIN TN-
411 PM CST FRI MAR 2 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL HARDIN COUNTY WILL
EXPIRE AT 415 PM CST...

AT 411 PM CST...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO
EXPIRE.

LAT...LON 3506 8837 3526 8837 3537 8802 3536 8800
      3531 8801 3529 8797 3511 8797 3510 8798
TIME...MOT...LOC 2211Z 251DEG 41KT 3525 8803

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 2, 2:50 AM CSTWind AdvisoryMEGCarroll, Chester, Crockett, Decatur, Dyer, Fayette and 14 more15 hr
Mar 2, 4:13 AM CSTSpecial Weather StatementMEGCrockett, Gibson32 min
Mar 2, 1:28 PM CSTRed Flag WarningMEGDyer, Lake, Lauderdale, Obion, Shelby, Tipton5 hr
Mar 2, 2:31 PM CSTSevere Thunderstorm WarningMEGFayette, Hardeman, McNairy44 min
Mar 2, 2:33 PM CSTTornado WarningMEGCarroll, Gibson, Henderson, Madison27 min
Mar 2, 2:43 PM CSTTornado WarningMEGFayette, Hardeman32 min
Mar 2, 3:02 PM CSTSevere Thunderstorm WarningMEGChester, Henderson, Madison28 min
Mar 2, 3:05 PM CSTSevere Thunderstorm WarningMEGHardeman, McNairy23 min
Mar 2, 3:13 PM CSTTornado WarningMEGHardeman, McNairy32 min
Mar 2, 3:51 PM CSTSevere Thunderstorm WarningMEGFayette, Hardeman, McNairy39 min
Mar 2, 3:51 PM CSTTornado WarningMEGHardin24 min
Mar 2, 4:08 PM CSTSevere Thunderstorm WarningMEGChester, Hardeman, McNairy37 min
Mar 2, 4:28 PM CSTSevere Thunderstorm WarningMEGChester, Decatur, Hardin, Henderson, McNairy32 min
Mar 2, 4:45 PM CSTSevere Thunderstorm WarningMEGHardeman, McNairy30 min
Mar 2, 5:45 PM CSTSevere Thunderstorm WarningMEGHardin30 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2012Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.