Alert archive / Tennessee / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 348, NWS Nashville, TN

October 24, 2010Wayne County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Oct 24, 2010, 9:37 PM CDT for Wayne County, Tennessee. It was in force for 23 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: Oct 24, 2010, 9:37 PM CDT (02:37 UTC)
Expired: Oct 24, 2010, 10:00 PM CDT
In force: 23 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

County Wayne County, TN

The radar

The Columbus AFB radar (KGWX), 157 km from the middle of the area, began a volume at 02:39 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, 2.6 hours before the alert went out and 146 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: 3 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 1945 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 164 m²/s²
0-3 km storm-relative helicity: 182 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 Oct 24, 7:11 PM CDT, 2 hours 26 minutes earlier.

Area forecast discussion, Oct 24, 7:11 PM CDT, 2 hours 26 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
711 PM CDT SUN OCT 24 2010

.MESOSCALE UPDATE...CLOSELY MONITORING POSSIBLE TORNADO NOW MOVING
INTO SE LEWIS CO. NOT SEEING ANYTHING ELSE CLOSE TO SEVERE IN
MIDDLE TENNESSEE. LATEST LAPS IMAGES SHOW BEST HELICITIES ACTUALLY
NORTH OF THE SUPERCELL LOCATION, WITH BEST LI'S AROUND LINDEN
AND CENTERVILLE. EVEN THOUGH THE CURRENT BAND OF ACTIVE WEATHER IS
MOVING OUT OF NW MIDDLE TENNESSEE, AM LOATHE TO REDUCE OVERNIGHT
POP'S THERE, AS THE NAM IS SHOWING REDEVELOPMENT OVERNIGHT, AS THE
UPPER TROUGH REMAINS SITUATED TO OUR WEST, AND THE AIR MASS WILL
REMAIN MOIST AND UNSTABLE. NO CHANGES ARE PLANNED TO THE CURRENT
FORECAST.
&&

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

ROSE

Hazardous weather outlook, Oct 24, 9:53 AM CDT, 11 hours 44 minutes before

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE NASHVILLE TN
953 AM CDT SUN OCT 24 2010

TNZ005>011-022>034-056>066-075-077>080-093>095-251000-
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-
953 AM CDT SUN OCT 24 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

ISOLATED STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE TONIGHT.
STRONG TO DAMAGING WINDS WILL BE THE MAIN THREAT...ALTHOUGH
HAIL MAY ALSO OCCUR.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

LOCALLY HEAVY RAIN IS POSSIBLE TUESDAY THROUGH WEDNESDAY.

.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

31

In the hours before

Special weather statement, Oct 24, 5:45 PM CDT, 3 hours 52 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
545 PM CDT SUN OCT 24 2010

TNZ056-058-093-242315-
LEWIS-PERRY-WAYNE-
545 PM CDT SUN OCT 24 2010

...SIGNIFICANT WEATHER ADVISORY FOR LEWIS...PERRY AND WAYNE
COUNTIES...

AT 539 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
SEVERE THUNDERSTORM OVER WESTERN TENNESSEE...NEAR SAVANNAH...MOVING
NORTHEAST AT 30 MPH. IF THIS STORM CONTINUES TO SHOW SEVERE CHARACTERISTICS
A SEVERE WEATHER WARNING MAY BE REQUIRED FOR PARTS OF WAYNE...LEWIS
AND PERRY COUNTIES SHORTLY.

WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM.

Special weather statement, Oct 24, 7:24 PM CDT, 2 hours 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
724 PM CDT SUN OCT 24 2010

TNZ056-058-093-094-250130-
LAWRENCE-LEWIS-PERRY-WAYNE-
724 PM CDT SUN OCT 24 2010

...SIGNIFICANT WEATHER ADVISORY FOR LAWRENCE...LEWIS...PERRY AND
WAYNE COUNTIES...

AT 717 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE OVER WESTERN WAYNE COUNTY...MOVING
NORTHEAST AT 30 MPH.

PEOPLE IN LEWIS...SOUTHEASTERN PERRY...WAYNE AND WESTERN LAWRENCE
COUNTIES...INCLUDING THE CITIES OF WAYNESBORO...COLLINWOOD AND
LORETTO...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR
POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD
SEVERE WEATHER THREATEN.

WINDS 30 TO 40 MPH...AND TORRENTIAL DOWNPOURS...ARE EXPECTED WITH
THESE STORMS...ALONG WITH POSSIBLE HAIL.

19

Local storm report, Oct 24, 7:28 PM CDT, 2 hours 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
728 PM CDT SUN OCT 24 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0724 PM     TORNADO          MOUNT PLEASANT          35.55N 87.19W
10/24/2010                   MAURY              TN   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED A RAIN-WRAPPED, ALBEIT
            WELL-DEFINED TORNADO, VISIBLE DURING LIGHTNING FLASHES,
            DUE WEST OF THE MAURY COUNTY AIRPORT IN MOUNT PLEASANT.

&&

ROSE

Local storm report, Oct 24, 8:32 PM CDT, 1 hour 5 minutes before

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Local storm report, Oct 24, 9:09 PM CDT, 28 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 24, 7:08 PM CDT	Tornado Warning	OHX	Lawrence, Lewis, Maury	37 min
Oct 24, 7:32 PM CDT	Tornado Warning Emergency	OHX	Maury	28 min
Oct 24, 7:42 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence, Wayne	33 min
Oct 24, 7:56 PM CDT	Tornado Warning	OHX	Maury, Williamson	17 min
Oct 24, 8:12 PM CDT	Tornado Warning	OHX	Rutherford, Williamson	33 min
Oct 24, 8:13 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence	32 min
Oct 24, 8:40 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, DeKalb, Rutherford, Smith, Wilson	56 min
Oct 24, 8:50 PM CDT	Severe Thunderstorm Warning	OHX	Marshall, Maury	21 min
Oct 24, 9:09 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Rutherford	36 min
Oct 24, 9:21 PM CDT	Tornado Warning	OHX	Bedford, Coffee, Rutherford	39 min
Oct 24, 9:39 PM CDT	Severe Thunderstorm Warning	OHX	Jackson, Overton, Putnam	51 min
Oct 24, 10:01 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence, Lewis, Wayne	29 min
Oct 25, 12:43 AM CDT	Severe Thunderstorm Warning	OHX	Bedford, Coffee	32 min
Oct 25, 4:02 PM CDT	Wind Advisory	OHX	Bedford, Benton, Cannon, Cheatham, Clay, Coffee and 33 more	24 hr

Nearby

Severe Thunderstorm Warnings in Tennessee, 2010 Every 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.