Alert archive / Tennessee / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 119, NWS Nashville, TN

August 23, 2013Marshall County, Maury County, Williamson County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Aug 23, 2013, 5:07 PM CDT for Marshall County, Maury County, Williamson County, Tennessee. It was in force for 38 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
Aug 23, 2013, 5:07 PM CDT (22:07 UTC)
Expired
Aug 23, 2013, 5:45 PM CDT
In force
38 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon

Counties Marshall County, TN, Maury County, TN, Williamson County, TN

The radar

The Nashville radar (KOHX), 73 km from the middle of the area, began a volume at 22:08 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, 10.1 hours before the alert went out and 59 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 2013-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2024 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 2013-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 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
2024 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
743 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
34 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 Aug 23, 4:26 PM CDT, 41 minutes earlier.

Area forecast discussion, Aug 23, 4:26 PM CDT, 41 minutes before
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Hazardous weather outlook, Aug 23, 5:03 AM CDT, 12 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
503 AM CDT FRI AUG 23 2013

TNZ005>011-022>034-056>066-075-077>080-093>095-241015-
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-
503 AM CDT FRI AUG 23 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

27

In the hours before

Local storm report, Aug 23, 3:53 PM CDT, 1 hour 14 minutes before
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  <link rel="stylesheet" href="index.css">
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<body>
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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Special weather statement, Aug 23, 4:03 PM CDT, 1 hour 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
403 PM CDT FRI AUG 23 2013

TNZ005>010-023-025>032-064-232200-
CHEATHAM-CLAY-DAVIDSON-DE
KALB-DICKSON-HOUSTON-JACKSON-MACON-MONTGOMERY-PUTNAM-ROBERTSON-SMITH-
STEWART-SUMNER-TROUSDALE-WILSON-
403 PM CDT FRI AUG 23 2013

...SIGNIFICANT WEATHER ADVISORY FOR CHEATHAM...CLAY...DAVIDSON...DE
KALB...DICKSON...HOUSTON...JACKSON...MACON...MONTGOMERY...PUTNAM...
ROBERTSON...SMITH...STEWART...SUMNER...TROUSDALE AND WILSON
COUNTIES...

AT 400 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING THUNDERSTORMS ALONG AND NEAR THE TENNESSEE AND KENTUCKY
STATE LINE.  THE STORMS WERE MOVING TO THE SOUTH AT 20 MPH.

SOME OF THE STORMS IN THE NORTHERN PART OF MIDDLE TENNESSE COULD BE
STRONG BETWEEN NOW AND 5 PM CDT...WITH SMALL HAIL AND WINDS UP TO 40
MPH POSSIBLE.  BRIEF HEAVY DOWNPOURS ARE POSSIBLE...TOO.

LAT...LON 3663 8576 3659 8565 3605 8568 3626 8782
      3663 8792 3666 8635
Special weather statement, Aug 23, 5:00 PM CDT, 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
500 PM CDT FRI AUG 23 2013

TNZ066-232300-
CUMBERLAND-
500 PM CDT FRI AUG 23 2013

...SIGNIFICANT WEATHER ADVISORY FOR CUMBERLAND COUNTY...

AT 459 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A CLUSTER OF STRONG THUNDERSTORMS FROM ABOUT CROSSVILLE
SOUTHWARD...MOVING SOUTH AT 15 MPH.

SOME LOCATIONS IN THE PATH INCLUDE LAKE TANSI AND CUMBERLAND MOUNTAIN
STATE PARK.

HALF INCH SIZE HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS
STORM.

LAT...LON 3582 8478 3581 8481 3576 8491 3574 8503
      3576 8504 3576 8519 3610 8518 3612 8485
      3610 8483 3609 8480 3606 8478 3599 8471
      3591 8467

BOYD
Special weather statement, Aug 23, 5:04 PM CDT, 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
504 PM CDT FRI AUG 23 2013

TNZ065-080-232245-
VAN BUREN-WHITE-
504 PM CDT FRI AUG 23 2013

...SIGNIFICANT WEATHER ADVISORY FOR VAN BUREN AND WHITE COUNTIES...

AT 459 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM NEAR SPARTA...MOVING SOUTH AT 15 MPH. LOOK FOR
LOCALLY HEAVY DOWNPOURS WITH THIS STORM.

SOME LOCATIONS IN THE PATH INCLUDE BAKERS CROSSROADS...SPARTA AND
DOYLE.

HALF INCH SIZE HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS
STORM.

LAT...LON 3574 8530 3576 8561 3576 8560 3577 8561
      3605 8558 3604 8534 3603 8532

BOYD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 23, 4:03 PM CDTSpecial Weather StatementOHXCheatham, Davidson, Houston, Jackson, Macon, Montgomery and 6 more57 min
Aug 23, 5:00 PM CDTSpecial Weather StatementOHXCumberland60 min
Aug 23, 5:04 PM CDTSpecial Weather StatementOHXWhite41 min
Aug 23, 5:36 PM CDTSevere Thunderstorm WarningOHXBedford, Rutherford54 min
Aug 23, 6:12 PM CDTSpecial Weather StatementOHXVan Buren48 min
Aug 23, 6:20 PM CDTSevere Thunderstorm WarningOHXHickman, Perry40 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2013Every 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.