Alert archive / Tennessee / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 327, NWS Nashville, TN

September 11, 2010Rutherford County, Wilson County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Sep 11, 2010, 3:03 PM CDT for Rutherford County, Wilson County, Tennessee. It was in force for 27 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
Sep 11, 2010, 3:03 PM CDT (20:03 UTC)
Expired
Sep 11, 2010, 3:30 PM CDT
In force
27 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon

Counties Rutherford County, TN, Wilson County, TN

The radar

The Nashville radar (KOHX), 33 km from the middle of the area, began a volume at 20:04 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.1 hours before the alert went out and 338 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, Peachtre/Fal Fld, GA at 12:00Z on 2010-09-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 356 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, Peachtre/Fal Fld, GA at 12:00Z on 2010-09-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 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
356 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
1513 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
23 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 Sep 11, 3:03 PM CDT, 0 minutes earlier.

Area forecast discussion, Sep 11, 3:03 PM CDT, 0 minutes before
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Hazardous weather outlook, Sep 11, 5:20 AM CDT, 9 hours 43 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
520 AM CDT SAT SEP 11 2010

TNZ005>011-022>034-056>066-075-077>080-093>095-121030-
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-PICKETT-BENTON-
HOUSTON-HUMPHREYS-DICKSON-CHEATHAM-DAVIDSON-WILSON-TROUSDALE-
SMITH-JACKSON-PUTNAM-OVERTON-FENTRESS-PERRY-HICKMAN-LEWIS-
WILLIAMSON-MAURY-MARSHALL-RUTHERFORD-CANNON-DE KALB-WHITE-
CUMBERLAND-BEDFORD-COFFEE-WARREN-GRUNDY-VAN BUREN-WAYNE-LAWRENCE-
GILES-
520 AM CDT SAT SEP 11 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

A FRONTAL SYSTEM WILL AFFECT THE MID STATE THIS AFTERNOON AND EVENING.
ISOLATED SEVERE STORMS ARE POSSIBLE...AND THE MAIN THREATS WILL BE
BE DAMAGING WINDS AND HAIL.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

EVEN THOUGH ANY SEVERE THUNDERSTORMS ARE EXPECTED TO BE BRIEF AND
ISOLATED, SPOTTERS ARE ENCOURAGED TO CLOSELY MONITOR WEATHER
CONDITIONS AND BE PREPARED TO CALL IN ANYTHING REACHING REPORTING
CRITERIA.

SPOTTER THUNDERSTORM REPORTING CRITERIA...
TORNADO
FUNNEL CLOUD
FLOODING
HAIL >= 1/2 INCH
WINDS > 50 MPH (MEASURED)
STRUCTURAL DAMAGE
TREES OR POWER LINES DOWN

17/MAG

In the hours before

Special weather statement, Sep 11, 1:35 PM CDT, 1 hour 28 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
135 PM CDT SAT SEP 11 2010

TNZ006>009-023>029-057-059-062-111930-
CHEATHAM-DAVIDSON-DICKSON-HICKMAN-HOUSTON-HUMPHREYS-MACON-MONTGOMERY-
ROBERTSON-RUTHERFORD-SUMNER-TROUSDALE-WILLIAMSON-WILSON-
135 PM CDT SAT SEP 11 2010

...STRONG THUNDERSTORMS WILL AFFECT PARTS CHEATHAM...DAVIDSON
...DICKSON...HICKMAN...HOUSTON...HUMPHREYS...MACON ...MONTGOMERY...
ROBERTSON...RUTHERFORD...SUMNER...TROUSDALE...WILLIAMSON AND WILSON
COUNTIES OVER THE NEXT FEW HOURS...

AT 130 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 5 MILES EAST OF
GUTHRIE TO WAVERLY...OR ALONG A LINE EXTENDING FROM 16 MILES
NORTHWEST OF SPRINGFIELD TO WAVERLY...MOVING EAST AT 20 MPH.

THESE STORMS WILL BE NEAR...
  MCEWEN BY 145 PM CDT.

SMALL HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THESE STORMS.

07
Special weather statement, Sep 11, 2:16 PM CDT, 47 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
216 PM CDT SAT SEP 11 2010

TNZ007>010-025>031-057-059-062-112015-
CHEATHAM-CLAY-DAVIDSON-DICKSON-HICKMAN-JACKSON-MACON-ROBERTSON-
RUTHERFORD-SMITH-SUMNER-TROUSDALE-WILLIAMSON-WILSON-
216 PM CDT SAT SEP 11 2010

...STRONG THUNDERSTORMS WILL AFFECT CHEATHAM...CLAY...DAVIDSON...
DICKSON...HICKMAN...JACKSON...MACON...ROBERTSON...RUTHERFORD...
SMITH...SUMNER...TROUSDALE...WILLIAMSON AND WILSON COUNTIES...

AT 212 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM PORTLAND TO
DICKSON...OR ALONG A LINE EXTENDING FROM 18 MILES NORTH OF GALLATIN
TO DICKSON...MOVING EAST AT 20 MPH.

THESE STORMS WILL BE NEAR...
  PORTLAND BY 230 PM CDT.
  WHITE BLUFF BY 240 PM CDT.
  WHITE HOUSE BY 245 PM CDT.
  FAIRVIEW BY 250 PM CDT.
  KINGSTON SPRINGS BY 305 PM CDT.
  PEGRAM BY 310 PM CDT.

SMALL HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THESE STORMS.

07
Special weather statement, Sep 11, 2:55 PM CDT, 8 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 11, 2:30 PM CDTSevere Thunderstorm WarningOHXCheatham, Davidson, Williamson45 min
Sep 11, 2:47 PM CDTSevere Thunderstorm WarningOHXWilliamson28 min
Sep 11, 4:18 PM CDTSevere Thunderstorm WarningOHXFentress, Pickett27 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2010Every severe thunderstorm warning in 2010

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.