Alert archive / Tennessee / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 607, NWS Memphis, TN

June 26, 2011Hardin County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Jun 26, 2011, 1:34 PM CDT for Hardin County, Tennessee. It was in force for 26 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
Jun 26, 2011, 1:34 PM CDT (18:34 UTC)
Expired
Jun 26, 2011, 2:00 PM CDT
In force
26 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon

County Hardin County, TN

The radar

The Columbus AFB radar (KGWX), 132 km from the middle of the area, began a volume at 18:34 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
Jun 26, 12:05 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 6.6 hours before the alert went out and 174 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 2011-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2937 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 2011-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 square meters per square second.193958Sfc1 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
2937 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
803 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
14 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

774 
WUUS54 KMEG 261834
SVRMEG
TNC071-261900-
/O.NEW.KMEG.SV.W.0607.110626T1834Z-110626T1900Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
134 PM CDT SUN JUN 26 2011

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN HARDIN COUNTY IN SOUTHWEST TENNESSEE...

* UNTIL 200 PM CDT

* AT 135 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING QUARTER SIZE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR WALNUT
  GROVE...OR 10 MILES EAST OF PICKWICK LANDING STATE PARK...AND
  MOVING SOUTH AT 5 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RURAL AREAS
  OF SOUTHERN HARDIN COUNTY.

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.

&&

LAT...LON 3501 8799 3501 8800 3501 8806 3501 8820
      3518 8830 3525 8798 3502 8798
TIME...MOT...LOC 1835Z 339DEG 6KT 3507 8805

$$
1 follow-up statement
280 
WWUS54 KMEG 261859
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
159 PM CDT SUN JUN 26 2011

TNC071-261910-
/O.EXP.KMEG.SV.W.0607.000000T0000Z-110626T1900Z/
HARDIN TN-
159 PM CDT SUN JUN 26 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN HARDIN COUNTY HAS
EXPIRED...

AT 200 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE WEAKENED...AND NO
LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY. THEREFORE...THE
SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 3501 8799 3501 8800 3501 8806 3501 8820
      3518 8830 3525 8798 3502 8798
TIME...MOT...LOC 1900Z 339DEG 6KT 3503 8803

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 10:13 AM CDTSpecial Weather StatementMEGHenry, Weakley32 min
Jun 26, 11:13 AM CDTSpecial Weather StatementMEGCarroll, Decatur, Henderson47 min
Jun 26, 11:36 AM CDTSpecial Weather StatementMEGChester, Crockett, Dyer, Gibson, Madison24 min
Jun 26, 11:51 AM CDTSevere Thunderstorm WarningMEGCrockett, Haywood, Madison39 min
Jun 26, 12:16 PM CDTSpecial Weather StatementMEGDecatur, Henderson29 min
Jun 26, 12:30 PM CDTSevere Thunderstorm WarningMEGChester, Hardeman, Madison45 min
Jun 26, 12:46 PM CDTSevere Thunderstorm WarningMEGHardeman, Haywood, Madison23 min
Jun 26, 1:08 PM CDTSpecial Weather StatementMEGHardin52 min
Jun 26, 1:11 PM CDTSpecial Weather StatementMEGMcNairy49 min
Jun 26, 1:49 PM CDTSevere Thunderstorm WarningMEGHardin, McNairy41 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2011Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.