Alert archive / Tennessee / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 276, NWS Nashville, TN

May 30, 2006Stewart County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at May 30, 2006, 12:45 PM CDT for Stewart County, Tennessee. It was in force for 30 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
May 30, 2006, 12:45 PM CDT (17:45 UTC)
Expired
May 30, 2006, 1:15 PM CDT
In force
30 min
Issued by
NWS Nashville, TN
Area
Counties, with a storm outline in the text

County Stewart County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 5.8 hours before the alert went out and 118 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 2006-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 954 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 12:00Z on 2006-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.1939Sfc1 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
954 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1244 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 May 30, 10:48 AM CDT, 1 hour 57 minutes earlier.

Area forecast discussion, May 30, 10:48 AM CDT, 1 hour 57 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
1048 AM CDT TUE MAY 30 2006

.DISCUSSION...

THE CURRENT FORECAST IS ON TRACT.  EARLIER THIS MORNING RAIN SHOWERS
FORMED NEAR A WEAK INVERTED SFC TROF LOCATED OVER THE WESTERN ZONES
OF THE CWA.  THE MODELS STILL HAVE PW WATER AT BNA AT 18Z ABOVE 1.6
INCHES.  WITH SLIGHTLY MORE MOISTURE AND WARMER TEMPERATURES THAN
YESTERDAY EXPECT A LITTLE MORE PRECIPITATION ACTIVITY THIS AFTERNOON
IN THE MID STATE. THUNDERSTORM ACTIVITY WILL BE A LITTLE MORE
PLENTIFUL IN OUR WESTERN ZONES WHERE THE ATMOSPHERE IS MORE UNSTABLE.
WILL UPDATE THE SOUTHERN ZONES FIRST PERIOD WINDS FOR AFTERNOON
WORDING. NO OTHER CHANGES NEEDED.

PREVIOUS DISCUSSION...
LATEST ANALYSIS STILL SHOWING THE MID-SOUTH IN A WARM UNSTABLE
REGIME...WITH RIDGES REMAINING ALOFT. CONVECTION LARGELY
DIURNALLY DRIVEN THUS THINGS QUIET EARLY THIS MORNING.

UPPER RIDGES STAYING PUT THROUGH LATE WEDNESDAY...WHICH WILL
KEEP THE CWA IN MAINLY ISOLATED-SCATTERED DIURNAL CONVECTION THROUGH
THAT TIME. PLAN WARM TEMPS AND LOW POPS THROUGH WEDNESDAY NIGHT.

STORM TRACK WILL SHIFT EASTWARD EARLY THURSDAY AS UPPER RIDGES
IN THE EAST BREAK DOWN. WEAK FRONTAL BOUNDARY LOOKS TO SWING
ACROSS THE CWA MIDDAY THURSDAY...WITH THE UPPER TROF AXIS
MOVING ACROSS IN THE EVENING. DEEP MOISTURE ASSOCIATED WITH
MORE FAVORABLE FORCING/INSTABILITY FROM PASSING FEATURES SHOULD
RESULT IN FAIRLY WIDESPREAD PCPN THURSDAY/THURSDAY EVENING.
PLAN TO UP POPS INTO LIKELY CATEGORY THURSDAY...LEAVING SCATTERED
THURSDAY NIGHT FOR THE TIME BEING.

NICE CHANGE EXPECTED FRIDAY AND THE WEEKEND AS COOLER DRIER AIR
SETTLES ON THE REGION.

&&

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE    91  70  90  69 /  30  20  30  30
CLARKSVILLE  90  68  89  68 /  30  20  30  30
CROSSVILLE   88  64  86  64 /  20  20  30  30

&&

.OHX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

31

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 4:41 PM CDTSevere Thunderstorm WarningOHXDavidson, Williamson34 min
May 30, 5:54 PM CDTSevere Thunderstorm WarningOHXMarshall36 min
May 30, 6:09 PM CDTSevere Thunderstorm WarningOHXCannon, Warren36 min
May 30, 6:44 PM CDTSevere Thunderstorm WarningOHXCannon, DeKalb, Rutherford31 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.