Alert archive / Tennessee / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 27, NWS Nashville, TN

March 24, 20134 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Mar 24, 2013, 3:56 PM CDT for 4 counties in Tennessee. It was in force for 34 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: Mar 24, 2013, 3:56 PM CDT (20:56 UTC)
Expired: Mar 24, 2013, 4:30 PM CDT
In force: 34 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Fentress County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN

The radar

The Nashville radar (KOHX), 123 km from the middle of the area, began a volume at 20:56 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 12:00Z, 8.9 hours before the alert went out and 128 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 465 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 117 m²/s²
0-3 km storm-relative helicity: 79 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 Mar 24, 3:02 PM CDT, 54 minutes earlier.

Area forecast discussion, Mar 24, 3:02 PM CDT, 54 minutes before

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Hazardous weather outlook, Mar 24, 5:25 AM CDT, 10 hours 31 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NASHVILLE TN
525 AM CDT SUN MAR 24 2013

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-
525 AM CDT SUN MAR 24 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

THERE IS A WIND ADVISORY IN EFFECT FOR MIDDLE TENNESSEE THROUGH
TONIGHT. SUSTAINED WINDS 20 TO 30 MPH WITH GUSTS UP TO 40 MPH
WILL BE POSSIBLE.

SOME STRONG THUNDERSTORMS ARE POSSIBLE DURING THE AFTERNOON HOURS TODAY.
MAIN CONCERNS WITH STRONG THUNDERSTORMS THAT DO DEVELOP WILL BE
STRONG WINDS AND SMALL HAIL.

A WEAK DISTURBANCE ALOFT WILL MOVE ACROSS MIDDLE TENNESSEE TONIGHT.
THIS COULD RESULT IN LIGHT SNOWFALL ACCUMULATIONS OF LESS THAN
ONE INCH ACROSS PRIMARILY THE CUMBERLAND PLATEAU REGION OF THE MID STATE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

ON MONDAY NIGHT...AS ANOTHER WEAK DISTURBANCE ALOFT MOVES ACROSS
MIDDLE TENNESSEE...LIGHT SNOWFALL ACCUMULATIONS OF LESS THAN ONE
INCH ACROSS PRIMARILY THE CUMBERLAND PLATEAU REGION OF THE MID
STATE WILL BE POSSIBLE.

.SPOTTER CALL TO ACTION STATEMENT...

SPOTTERS AND LOCAL EMERGENCY MANAGEMENT OFFICIALS ARE ENCOURAGED
TO REPORT HIGH WINDS...ESPECIALLY THOSE THAT CAUSE DAMAGE...TO
THE NATIONAL WEATHER SERVICE IN NASHVILLE.

EVEN THOUGH ANY STRONG 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.

SPOTTERS AND LOCAL EMERGENCY MANAGEMENT OFFICIALS ARE ENCOURAGED
TO REPORT ANY SNOW ACCUMULATIONS TO THE NATIONAL WEATHER SERVICE
IN NASHVILLE.

31

In the hours before

Special weather statement, Mar 24, 12:14 PM CDT, 3 hours 42 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
1214 PM CDT SUN MAR 24 2013

TNZ005>009-023>029-056>062-075-093>095-241915-
BEDFORD-CHEATHAM-DAVIDSON-DICKSON-GILES-HICKMAN-HOUSTON-HUMPHREYS-
LAWRENCE-LEWIS-MACON-MARSHALL-MAURY-MONTGOMERY-PERRY-ROBERTSON-
RUTHERFORD-STEWART-SUMNER-TROUSDALE-WAYNE-WILLIAMSON-WILSON-
1214 PM CDT SUN MAR 24 2013

...A SIGNIFICANT WEATHER ADVISORY FOR MUCH OF MIDDLE TENNESSEE THROUGH
215 PM CDT THIS AFTERNOON...INCLUDING THE CITIES OF NASHVILLE...
CLARKSVILLE...DICKSON...CENTERVILLE...COLUMBIA...LAWRENCEBURG...
GALLATIN...MURFREESBORO...AND SHELBYVILLE.

AT 1208 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A DEVELOPING LINE OF THUNDERSTORMS...SOME STRONG...EXTENDING FROM
JUST WEST OF CLARKSVILLE...TO NEAR LOBELVILLE AND WAYNESBORO...MOVING
RAPIDLY EAST AT AROUND 50 MPH.

HAIL TO DIME SIZE IS EXPECTED TO BE COMMON WITH THE STRONGER STORMS...
ALONG WITH POSSIBLE WIND GUSTS TO AROUND 40 MPH.

LAT...LON 3664 8784 3663 8605 3536 8633 3532 8644
      3537 8659 3525 8675 3526 8682 3502 8683
      3503 8797 3667 8789

19

Local storm report, Mar 24, 12:17 PM CDT, 3 hours 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1217 PM CDT SUN MAR 24 2013

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

1215 PM     HAIL             CLARKSVILLE             36.56N  87.35W
03/24/2013  M0.50 INCH       MONTGOMERY         TN   TRAINED SPOTTER

            HALF INCH HAIL REPORTED IN CLARKSVILLE CITY LIMITS BY
            TRAINED SPOTTERS.

&&

EVENT NUMBER OHX1300308

MDAVIS

Local storm report, Mar 24, 12:19 PM CDT, 3 hours 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1219 PM CDT SUN MAR 24 2013

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

1218 PM     HAIL             CLARKSVILLE             36.56N  87.35W
03/24/2013  E0.70 INCH       MONTGOMERY         TN   NWS EMPLOYEE

            DIME SIZED HAIL REPORTED IN CLARKSVILLE BY RETIRED NWS
            EMPLOYEE.

&&

EVENT NUMBER OHX1300309

MDAVIS

Local storm report, Mar 24, 12:48 PM CDT, 3 hours 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1248 PM CDT SUN MAR 24 2013

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

1247 PM     HAIL             SPRINGFIELD             36.50N  86.88W
03/24/2013  E0.70 INCH       ROBERTSON          TN   TRAINED SPOTTER

            DIME SIZED HAIL REPORTED JUST NORTH OF SPRINGFIELD.

&&

EVENT NUMBER OHX1300310

MDAVIS

Special weather statement, Mar 24, 2:00 PM CDT, 1 hour 56 minutes before

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Special weather statement, Mar 24, 3:15 PM CDT, 41 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 24, 2:24 AM CDT	Wind Advisory	OHX	Bedford, Benton, Cannon, Cheatham, Clay, Coffee and 33 more	35 hr
Mar 24, 11:32 AM CDT	Special Weather Statement	OHX	Benton, Houston, Humphreys, Montgomery, Stewart	43 min
Mar 24, 11:45 AM CDT	Severe Thunderstorm Warning	OHX	Benton, Houston, Stewart	45 min
Mar 24, 11:57 AM CDT	Severe Thunderstorm Warning	OHX	Houston, Montgomery, Stewart	33 min
Mar 24, 12:14 PM CDT	Special Weather Statement	OHX	Bedford, Cheatham, Davidson, Dickson, Giles, Hickman and 16 more	2 hr
Mar 24, 12:30 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Houston, Montgomery	45 min
Mar 24, 12:55 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Robertson	35 min
Mar 24, 1:22 PM CDT	Severe Thunderstorm Warning	OHX	Robertson, Sumner	38 min
Mar 24, 2:00 PM CDT	Special Weather Statement	OHX	Bedford, Cannon, Clay, Coffee, Cumberland, DeKalb and 16 more	105 min
Mar 24, 3:15 PM CDT	Special Weather Statement	OHX	Cannon, Clay, Coffee, Cumberland, DeKalb, Fentress and 9 more	90 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2013 Every severe thunderstorm warning in 2013

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.