Alert archive / Tennessee / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 21, NWS Memphis, TN

January 10, 2008Decatur County, Hardin County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Jan 10, 2008, 1:01 PM CST for Decatur County, Hardin County, Tennessee. It was in force for 29 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 10, 2008, 1:01 PM CST (19:01 UTC)
Expired
Jan 10, 2008, 1:30 PM CST
In force
29 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon

Counties Decatur County, TN, Hardin County, TN

The radar

The Memphis radar (KNQA), 161 km from the middle of the area, began a volume at 19:03 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
Jan 10, 7:46 AM CSTTornado WatchSPC8 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.0 hours before the alert went out and 156 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, Nashville Metro, TN at 12:00Z on 2008-01-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 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, Nashville Metro, TN at 12:00Z on 2008-01-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 155 square meters per square second.1939587897Sfc1 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
4 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
589 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
155 m²/s²
0-3 km storm-relative helicity
170 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.

000 
WUUS54 KMEG 101901
SVRMEG
TNC039-071-101930-
/O.NEW.KMEG.SV.W.0021.080110T1901Z-080110T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
101 PM CST THU JAN 10 2008

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

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

* UNTIL 130 PM CST

* AT 101 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING BASEBALL SIZE HAIL...AND DAMAGING   
WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 7 MILES EAST OF   
MORRIS CHAPEL...OR ABOUT 7 MILES NORTH OF SAVANNAH...AND MOVING   
NORTHEAST AT 55 MPH.

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

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS

.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 3553 8798 3547 8799 3546 8802 3543 8799
      3541 8800 3522 8831 3532 8838 3535 8836
      3559 8801
TIME...MOT...LOC 1901Z 227DEG 48KT 3534 8822

$$
2 follow-up statements
000 
WWUS54 KMEG 101916
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
116 PM CST THU JAN 10 2008

TNC039-071-101930-
/O.CON.KMEG.SV.W.0021.000000T0000Z-080110T1930Z/
DECATUR TN-HARDIN TN-
116 PM CST THU JAN 10 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM CST
FOR EXTREME NORTHEASTERN HARDIN AND SOUTHEASTERN DECATUR COUNTIES...

AT 116 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM PRODUCING GOLF BALL SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED OVER
HARDIN COUNTY...OR ABOUT 17 MILES NORTHEAST OF SAVANNAH...MOVING
NORTHEAST AT 55 MPH.

THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTY..

.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 BASEMENT 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 3553 8798 3547 8799 3546 8802 3543 8800
      3541 8800 3537 8816 3539 8818 3553 8799
TIME...MOT...LOC 1916Z 227DEG 48KT 3545 8801

$$
000 
WWUS54 KMEG 101931
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
131 PM CST THU JAN 10 2008

TNC039-071-101941-
/O.EXP.KMEG.SV.W.0021.000000T0000Z-080110T1930Z/
DECATUR TN-HARDIN TN-
131 PM CST THU JAN 10 2008

...THE SEVERE THUNDERSTORM WARNING FOR EXTREME NORTHEASTERN HARDIN
AND SOUTHEASTERN DECATUR COUNTIES HAS BEEN ALLOWED TO EXPIRE...

AT 131 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.

.A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA.

LAT...LON 3553 8798 3547 8799 3546 8802 3543 8800
      3541 8800 3537 8816 3539 8818 3553 8799
TIME...MOT...LOC 1916Z 227DEG 48KT 3545 8801

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 10, 9:24 AM CSTTornado WarningMEGFayette51 min
Jan 10, 9:34 AM CSTFlash Flood WarningMEGFayette, Shelby116 min
Jan 10, 9:55 AM CSTSevere Thunderstorm WarningMEGChester, Hardeman, McNairy50 min
Jan 10, 10:24 AM CSTSevere Thunderstorm WarningMEGCarroll, Henderson36 min
Jan 10, 10:32 AM CSTSevere Thunderstorm WarningMEGMadison28 min
Jan 10, 10:37 AM CSTSevere Thunderstorm WarningMEGDecatur23 min
Jan 10, 12:22 PM CSTTornado WarningMEGHardin, McNairy38 min
Jan 10, 12:49 PM CSTFlash Flood WarningMEGMadison116 min
Jan 10, 12:59 PM CSTTornado WarningMEGHardin31 min
Jan 10, 1:08 PM CSTFlash Flood WarningMEGDecatur, Hardin, McNairy2 hr
Jan 10, 2:02 PM CSTFlash Flood WarningMEGCarroll, Gibson88 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2008Every severe thunderstorm warning in 2008

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.