Alert archive / Tennessee / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 101, NWS Memphis, TN

March 15, 2012Hardeman County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Mar 15, 2012, 2:29 PM CDT for Hardeman County, Tennessee. It was in force for 31 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: Mar 15, 2012, 2:29 PM CDT (19:29 UTC)
Expired: Mar 15, 2012, 3:00 PM CDT
In force: 31 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon

County Hardeman County, TN

The radar

The Memphis radar (KNQA), 73 km from the middle of the area, began a volume at 19:32 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
Mar 15, 3:05 PM CDT	HAIL 1	Bolivar, TN	QUARTER SIZE HAIL...POSSIBLY SOME PIECES LARGER...ON HWY 64 JUST WEST OF BOLIVAR.

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

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 7.5 hours before the alert went out and 88 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: 1212 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 975 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -38 m²/s²
0-3 km storm-relative helicity: -26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

768 
WUUS54 KMEG 151929
SVRMEG
TNC069-152000-
/O.NEW.KMEG.SV.W.0101.120315T1929Z-120315T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
229 PM CDT THU MAR 15 2012

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HARDEMAN COUNTY IN SOUTHWEST TENNESSEE...

* UNTIL 300 PM CDT

* AT 230 PM CDT...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
  SOUTHWEST OF BOLIVAR...AND MOVING NORTHEAST AT 15 MPH.

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

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 3505 8920 3525 8919 3541 8900 3519 8887
TIME...MOT...LOC 1930Z 244DEG 11KT 3522 8911

$$

1 follow-up statement

514 
WWUS54 KMEG 151945
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
245 PM CDT THU MAR 15 2012

TNC069-152000-
/O.CON.KMEG.SV.W.0101.000000T0000Z-120315T2000Z/
HARDEMAN TN-
245 PM CDT THU MAR 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM CDT
FOR HARDEMAN COUNTY...

AT 245 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
MIDDLEBURG...OR NEAR BOLIVAR...MOVING NORTHEAST AT 15 MPH.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BOLIVAR...
HICKORY VALLEY...SHANDY...MIDDLEBURG AND VAN BUREN.

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 3505 8920 3527 8915 3541 8900 3519 8887
TIME...MOT...LOC 1945Z 244DEG 11KT 3524 8906

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 15, 1:42 PM CDT	Special Weather Statement	MEG	Hardeman	33 min
Mar 15, 1:51 PM CDT	Special Weather Statement	MEG	Fayette	24 min
Mar 15, 2:05 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Hardeman	25 min
Mar 15, 2:28 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Hardeman, Madison	32 min
Mar 15, 2:49 PM CDT	Severe Thunderstorm Warning	MEG	Henry	24 min
Mar 15, 2:50 PM CDT	Severe Thunderstorm Warning	MEG	Henderson	25 min
Mar 15, 2:54 PM CDT	Flash Flood Warning	MEG	Chester, Hardeman, Madison	96 min
Mar 15, 2:59 PM CDT	Severe Thunderstorm Warning	MEG	Hardeman	31 min
Mar 15, 3:00 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Henderson, Madison	27 min
Mar 15, 3:07 PM CDT	Severe Thunderstorm Warning	MEG	Decatur, Henderson	26 min
Mar 15, 3:47 PM CDT	Special Weather Statement	MEG	Carroll	28 min
Mar 15, 3:48 PM CDT	Special Weather Statement	MEG	McNairy	27 min
Mar 15, 3:52 PM CDT	Severe Thunderstorm Warning	MEG	Hardeman, McNairy	36 min
Mar 15, 3:55 PM CDT	Severe Thunderstorm Warning	MEG	Carroll	13 min
Mar 15, 4:33 PM CDT	Special Weather Statement	MEG	McNairy	27 min
Mar 15, 4:40 PM CDT	Severe Thunderstorm Warning	MEG	Hardin, McNairy	35 min
Mar 15, 5:14 PM CDT	Severe Thunderstorm Warning	MEG	Hardin	31 min

Nearby

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