Alert archive / Tennessee / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 317, NWS Nashville, TN

June 11, 2006Williamson County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jun 11, 2006, 11:32 PM CDT for Williamson County, Tennessee. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 11, 2006, 11:32 PM CDT (04:32 UTC)
Expired
Jun 12, 2006, 12:30 AM CDT
In force
58 min
Issued by
NWS Nashville, TN
Area
Counties, with a storm outline in the text

County Williamson County, TN

The radar

The Nashville radar (KOHX), 50 km from the middle of the area, began a volume at 04:33 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 nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 4.5 hours before the alert went out and 38 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 00:00Z on 2006-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 773 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2006-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 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
773 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
1775 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Nashville, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 11, 11:15 PM CDT, 17 minutes earlier.

Area forecast discussion, Jun 11, 11:15 PM CDT, 17 minutes before
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Hazardous weather outlook, Jun 11, 5:08 AM CDT, 18 hours 24 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
508 AM CDT SUN JUN 11 2006

TNZ005>011-022>034-056>066-075-077>080-093>095-121030-
BEDFORD-BENTON-CANNON-CHEATHAM-CLAY-COFFEE-CUMBERLAND-DAVIDSON-
DEKALB-DICKSON-FENTRESS-GILES-GRUNDY-HICKMAN-HOUSTON-HUMPHREYS-
JACKSON-LAWRENCE-LEWIS-MACON-MARSHALL-MAURY-MONTGOMERY-OVERTON-PERRY-
PICKETT-PUTNAM-ROBERTSON-RUTHERFORD-SMITH-STEWART-SUMNER-TROUSDALE-
VAN BUREN-WARREN-WAYNE-WHITE-WILLIAMSON-WILSON-
508 AM CDT SUN JUN 11 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF MIDDLE
TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

A COLD FRONT WILL MOVE SOUTHWARD ACROSS MIDDLE TENNESSEE LATE
TODAY AND TONIGHT...AND PRODUCE A CHANCE FOR THUNDERSTORMS.
A FEW STORMS MAY BE SEVERE...WITH DAMAGING WINDS AND LARGE
HAIL.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE LATE TODAY AND TONIGHT.

19

In the hours before

Special weather statement, Jun 11, 7:28 PM CDT, 4 hours 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
728 PM CDT SUN JUN 11 2006

TNZ005>011-022>034-056>066-075-077>080-093>095-120100-
BEDFORD-BENTON-CANNON-CHEATHAM-CLAY-COFFEE-CUMBERLAND-DAVIDSON-
DEKALB-DICKSON-FENTRESS-GILES-GRUNDY-HICKMAN-HOUSTON-HUMPHREYS-
JACKSON-LAWRENCE-LEWIS-MACON-MARSHALL-MAURY-MONTGOMERY-OVERTON-PERRY-
PICKETT-PUTNAM-ROBERTSON-RUTHERFORD-SMITH-STEWART-SUMNER-TROUSDALE-
VAN BUREN-WARREN-WAYNE-WHITE-WILLIAMSON-WILSON-
728 PM CDT SUN JUN 11 2006

...STRONG THUNDERSTORMS ALONG THE KENTUCKY BORDER...

AT 730 PM...THUNDERSTORMS WERE MOVING ALONG AND JUST NORTH OF THE
KENTUCKY STATE LINE...FROM NORTH OF CLARKSVILLE TO NORTH OF THE
PORTLAND AREA. SOME OF THESE STORMS ARE STRONG...AND PRODUCING WIND
GUSTS TO 45 MPH AND DIME SIZE HAIL...WITH THE POTENTIAL TO BECOME
SEVERE.

A WEAK LOW LEVEL JET...IS PUNCHING INTO WESTERN TENNESSEE THIS
EVENING...IN AN AREA OF RATHER LARGE INSTABILITY. AS A RESULT...
STRONG TO SEVERE THUNDERSTORMS COULD DEVELOP WEST OF THE NASHVILLE
AREA BY 9 PM.

THE WEATHER SERVICE IN NASHVILLE WILL CONTINUE TO MONITOR THE
SITUATION CLOSELY. WARNINGS FOR COUNTIES NEAR THE KENTUCKY BORDER
MAY BE NEEDED BY 8 PM.

BOYD
Special weather statement, Jun 11, 8:54 PM CDT, 2 hours 38 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
854 PM CDT SUN JUN 11 2006

TNZ005>011-022>034-056-057-059-062>066-120215-
BENTON-CANNON-CHEATHAM-CLAY-CUMBERLAND-DAVIDSON-DEKALB-DICKSON-
FENTRESS-HICKMAN-HOUSTON-HUMPHREYS-JACKSON-MACON-MONTGOMERY-OVERTON-
PERRY-PICKETT-PUTNAM-ROBERTSON-RUTHERFORD-SMITH-STEWART-SUMNER-
TROUSDALE-WHITE-WILLIAMSON-WILSON-
854 PM CDT SUN JUN 11 2006

...THUNDERSTORMS BEGINNING TO FIRE ACROSS NORTHERN MIDDLE
TENNESSEE...

THE NATIONAL WEATHER SERVICE IN NASHVILLE IS MONITORING STORMS
CLOSELY IN NORTHERN MIDDLE TENNESSEE FOR SEVERE WEATHER POTENTIAL.

ALSO...A STORM JUST TO THE WEST OF CAMDEN IS MOVING EASTWARD
AT 25 MPH...AND A WARNING MAY BE NEEDED SHORTLY FOR BENTON COUNTY.

STAY TUNED TO NOAA WEATHER RADIO FOR UPDATES SHOULD WARNINGS
BECOME NECESSARY.

BOYD
Local storm report, Jun 11, 10:51 PM CDT, 41 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 8:47 PM CDTSevere Thunderstorm WarningOHXRobertson28 min
Jun 11, 9:04 PM CDTSevere Thunderstorm WarningOHXBenton56 min
Jun 11, 9:08 PM CDTSevere Thunderstorm WarningOHXSumner38 min
Jun 11, 10:26 PM CDTSevere Thunderstorm WarningOHXHumphreys34 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2006Every severe thunderstorm warning in 2006

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.