Alert archive / Tennessee / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 165, NWS Nashville, TN

October 6, 2014Davidson County, Williamson County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Oct 6, 2014, 3:23 PM CDT for Davidson County, Williamson County, Tennessee. It was in force for 37 min. 6 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Oct 6, 2014, 3:23 PM CDT (20:23 UTC)
Expired: Oct 6, 2014, 4:00 PM CDT
In force: 37 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Davidson County, TN, Williamson County, TN

The radar

The Nashville radar (KOHX), 37 km from the middle of the area, began a volume at 20:26 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.

What was reported inside it

Time	Report	Where	Remark
Oct 6, 3:32 PM CDT	HAIL 0.7	9 Wsw Franklin, TN	DIME SIZED HAIL REPORTED AT OLD HILLSBORO ROAD AND NATCHEZ TRACE PARKWAY
Oct 6, 3:38 PM CDT	HAIL 0.88	6 Se Nashville, TN	NICKEL SIZE HAIL REPORTED AT NASHVILLE INTERNATIONAL AIRPORT BNA
Oct 6, 3:50 PM CDT	HAIL 1	5 Sse Nashville, TN	QUARTER SIZED HAIL REPORTED BY EMA AT CRIEVE HALL AND OAK HILL.
Oct 6, 3:52 PM CDT	HAIL 1	5 Sse Nashville, TN	QUARTER SIZE HAIL REPORTED AT 648 GRASSMERE PARK - NASHVILLE ZOO
Oct 6, 3:55 PM CDT	HAIL 0.7	7 Sse Nashville, TN	DIME SIZE HAIL REPORTED AT I24 AND HARDING
Oct 6, 3:58 PM CDT	HAIL 0.88	6 Se Nashville, TN	NICKEL SIZE HAIL REPORTED AT NASHVILLE INTERNATIONAL AIRPORT BNA

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 27 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.4 hours before the alert went out and 24 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: 77 J/kg
Mixed-layer CIN: -196 J/kg
Mixed-layer LCL: 1248 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 202 m²/s²
0-3 km storm-relative helicity: 209 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

078 
WUUS54 KOHX 062023
SVROHX
TNC037-187-062100-
/O.NEW.KOHX.SV.W.0165.141006T2023Z-141006T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
323 PM CDT MON OCT 6 2014

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WILLIAMSON COUNTY IN MIDDLE TENNESSEE...
  SOUTHERN DAVIDSON COUNTY IN MIDDLE TENNESSEE...

* UNTIL 400 PM CDT

* AT 321 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING ONE INCH DIAMETER HAIL.
  THE STORM WAS NEAR FAIRVIEW...MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FRANKLIN...FOREST HILLS...BELLE MEADE...BRENTWOOD...OAK HILL...
  NOLENSVILLE...ANTIOCH...NATCHEZ TRACE AT HIGHWAY 96...TRIUNE AND
  BERRY HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS.

CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS SEVERE 
THUNDERSTORM. MOVE INDOORS IMMEDIATELY! IF YOU CAN HEAR THUNDER...YOU
ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3617 8671 3600 8661 3599 8662 3598 8661
      3597 8662 3590 8662 3589 8661 3586 8662
      3584 8660 3580 8706 3582 8710 3596 8716
TIME...MOT...LOC 2023Z 246DEG 39KT 3592 8701

$$

FORECASTER:BOYD

1 follow-up statement

541 
WWUS54 KOHX 062036
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
336 PM CDT MON OCT 6 2014

TNC037-187-062100-
/O.CON.KOHX.SV.W.0165.000000T0000Z-141006T2100Z/
WILLIAMSON TN-DAVIDSON TN-
336 PM CDT MON OCT 6 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR SOUTHERN DAVIDSON AND WILLIAMSON COUNTIES...

AT 334 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL. THIS 
STORM WAS LOCATED NEAR FRANKLIN...MOVING NORTHEAST AT 40 MPH. HAIL 
HAS BEEN REPORTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  FOREST HILLS...BELLE MEADE...BRENTWOOD...OAK HILL...NOLENSVILLE...
  ANTIOCH...TRIUNE AND BERRY HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS.

CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS SEVERE 
THUNDERSTORM. MOVE INDOORS IMMEDIATELY! IF YOU CAN HEAR THUNDER...YOU
ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3617 8671 3600 8661 3599 8662 3598 8661
      3597 8662 3590 8662 3589 8661 3586 8662
      3584 8660 3580 8706 3582 8710 3596 8716
TIME...MOT...LOC 2035Z 246DEG 39KT 3597 8686

$$

BOYD

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 6, 2:59 PM CDT, 24 minutes earlier.

Area forecast discussion, Oct 6, 2:59 PM CDT, 24 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
259 PM CDT MON OCT 6 2014

.DISCUSSION...AN UNSTABLE AND MODERATELY-SHEARED ENVIRONMENT HAS
SET UP ACROSS MIDDLE TENNESSEE AHEAD OF A COLD FRONT THAT IS
EXPECTED TO SWEEP ACROSS THE MID STATE TUESDAY EVENING. A STRONG
SURFACE PRESSURE GRADIENT HAS DEVELOPED THIS AFTERNOON, WITH GUSTY
WINDS FROM THE SW. SOME STORMS HAVE DEVELOPED ALREADY, WITH MORE
EXPECTED INTO THE EARLY EVENING, AND A FEW OF THESE MAY BECOME
SEVERE. NAM SHOWS A CONTINUOUS FEED OF LOW AND MID-LEVEL MOISTURE
INTO MIDDLE TENNESSEE UP UNTIL FROPA, MEANING WE WILL MAINTAIN A
HIGH PROBABILITY OF RAINFALL AT LEAST THROUGH TOMORROW, ALTHOUGH
THE CHANCE OF SEVERE STORMS DIMINISHES CONSIDERABLY AFTER THIS
EVENING. THERE WILL BE A BRIEF RESPITE FROM THE ACTIVE WEATHER ON
WEDNESDAY BEFORE A QUASI-STATIONARY FRONT SETS UP TO OUR NORTH
WEDNESDAY NIGHT AND THURSDAY AND KEEPS US IN A WET PATTERN AT
LEAST THROUGH THE WEEKEND, WHICH IS RATHER UNUSUAL FOR THIS TIME
OF YEAR. TEMPERATURES WILL COOL SOMEWHAT BY MID-WEEK, BUT FORECAST
VALUES FROM THEN THROUGH DAY 7 DON'T STRAY TOO FAR FROM NORMAL.

&&

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE      60  77  58  78 /  60  70  30   0
CLARKSVILLE    57  78  54  76 /  50  60  20   0
CROSSVILLE     54  69  53  72 /  70  70  40  05
COLUMBIA       60  78  59  80 /  60  60  30   0
LAWRENCEBURG   59  77  58  81 /  70  60  30   0
WAVERLY        59  78  55  79 /  50  60  20   0

&&

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

&&

ROSE

Hazardous weather outlook, Oct 6, 5:08 AM CDT, 10 hours 15 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
508 AM CDT MON OCT 6 2014

TNZ005>011-023>034-056>066-075-077>080-093>095-071000-
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-PICKETT-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-
508 AM CDT MON OCT 6 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY FOR ALL OF
MIDDLE TENNESSEE MAINLY DURING THE AFTERNOON THROUGH EVENING HOURS.
MAIN CONCERNS WILL BE LARGE HAIL AND DAMAGING WINDS. AN ISOLATED
TORNADO CAN NOT BE RULED OUT...ESPECIALLY ACROSS WESTERN PORTIONS
OF THE MID STATE. SOME OF THESE THUNDERSTORMS MAY ALSO PRODUCE
BRIEF HEAVY DOWNPOURS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

STRONG THUNDERSTORMS WILL BE POSSIBLE ON TUESDAY. MAIN CONCERNS
WILL BE SMALL HAIL AND GUSTY WINDS.

.SPOTTER CALL TO ACTION STATEMENT...

REPORTS FROM TRAINED WEATHER SPOTTERS MAY BE NEEDED.

SPOTTERS CAN MAKE REPORTS VIA TWITTER USING HASHTAG #TSPOTTER

TO MAKE A REPORT VIA FACEBOOK GO TO:
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.NASHVILLE.GOV

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 6, 2:32 PM CDT, 51 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
232 PM CDT MON OCT 6 2014

TNZ032-065-062015-
PUTNAM-WHITE-
232 PM CDT MON OCT 6 2014

...SIGNIFICANT WEATHER ADVISORY FOR PUTNAM AND WHITE COUNTIES...

AT 231 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM NEAR SPARTA...MOVING EAST AT 40 MPH.

SOME LOCATIONS IN THE PATH INCLUDE BAKERS CROSSROADS...BURGESS FALLS
STATE PARK...SPARTA...HAMPTONS CROSSROADS AND MONTEREY.

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

LAT...LON 3613 8513 3610 8515 3611 8523 3609 8525
      3605 8524 3596 8526 3590 8560 3607 8567
      3622 8536 3622 8533 3620 8532 3615 8521
      3614 8510

BOYD

Special weather statement, Oct 6, 2:34 PM CDT, 49 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
234 PM CDT MON OCT 6 2014

TNZ064-065-078-080-062015-
DE KALB-VAN BUREN-WARREN-WHITE-
234 PM CDT MON OCT 6 2014

...SIGNIFICANT WEATHER ADVISORY FOR DE KALB...VAN BUREN...WARREN AND
WHITE COUNTIES...

AT 231 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM NEAR MCMINNVILLE...MOVING EAST AT 40 MPH.

SOME LOCATIONS IN THE PATH INCLUDE GREEN HILL...ROCK ISLAND STATE
PARK...DOYLE...SPARTA AND VIRGIN FALLS STATE NATURAL AREA.

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

LAT...LON 3582 8523 3579 8527 3578 8525 3571 8580
      3586 8586 3605 8536 3603 8531 3600 8531
      3598 8527 3592 8525 3590 8522

BOYD

Special weather statement, Oct 6, 2:36 PM CDT, 47 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
236 PM CDT MON OCT 6 2014

TNZ056>058-060-062015-
HICKMAN-LEWIS-MAURY-PERRY-
236 PM CDT MON OCT 6 2014

...SIGNIFICANT WEATHER ADVISORY FOR HICKMAN...LEWIS...MAURY AND PERRY
COUNTIES...

AT 233 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM 11 MILES NORTHWEST OF HOHENWALD...MOVING EAST
AT 40 MPH.

SOME LOCATIONS IN THE PATH INCLUDE PLEASANTVILLE...KIMMINS...
CENTERVILLE AND PRIMM SPRINGS.

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

LAT...LON 3597 8739 3586 8721 3585 8721 3583 8716
      3559 8720 3554 8765 3580 8778

BOYD

Special weather statement, Oct 6, 2:42 PM CDT, 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
242 PM CDT MON OCT 6 2014

TNZ032>034-065-066-062030-
CUMBERLAND-FENTRESS-OVERTON-PUTNAM-WHITE-
242 PM CDT MON OCT 6 2014

...SIGNIFICANT WEATHER ADVISORY FOR CUMBERLAND...FENTRESS...
OVERTON...PUTNAM AND WHITE COUNTIES...

AT 240 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM NEAR COOKEVILLE...MOVING EASTNORTHEAST AT 40 MPH.

SOME LOCATIONS IN THE PATH INCLUDE HAMPTONS CROSSROADS...
COOKEVILLE...MONTEREY...CRAWFORD...CLARKRANGE AND GRIMSLEY.

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

LAT...LON 3596 8550 3612 8558 3640 8504 3617 8489
      3616 8490 3615 8488 3605 8481

BOYD

Special weather statement, Oct 6, 2:55 PM CDT, 28 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
255 PM CDT MON OCT 6 2014

TNZ057-059-060-062045-
HICKMAN-MAURY-WILLIAMSON-
255 PM CDT MON OCT 6 2014

...SIGNIFICANT WEATHER ADVISORY FOR HICKMAN...MAURY AND WILLIAMSON
COUNTIES...

AT 254 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM NEAR CENTERVILLE...MOVING NORTHEAST AT 40 MPH.

SOME LOCATIONS IN THE PATH INCLUDE NUNNELLY...CENTERVILLE...LYLES...
PRIMM SPRINGS...FAIRVIEW...LEIPERS FORK AND NATCHEZ TRACE AT HIGHWAY
96.

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

LAT...LON 3597 8728 3596 8721 3598 8719 3601 8719
      3605 8711 3604 8705 3599 8704 3603 8696
      3582 8680 3566 8734 3566 8736 3563 8744
      3583 8757

BOYD

Special weather statement, Oct 6, 3:11 PM CDT, 12 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
311 PM CDT MON OCT 6 2014

TNZ011-033-034-066-062100-
CUMBERLAND-FENTRESS-OVERTON-PICKETT-
311 PM CDT MON OCT 6 2014

...SIGNIFICANT WEATHER ADVISORY FOR CUMBERLAND...FENTRESS...OVERTON
AND PICKETT COUNTIES...

AT 308 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM 10 MILES NORTHEAST OF MONTEREY...MOVING
EASTNORTHEAST AT 40 MPH.

SOME LOCATIONS IN THE PATH INCLUDE CRAWFORD...CLARKRANGE...GRIMSLEY
AND ALLARDT.

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

LAT...LON 3637 8470 3637 8472 3634 8473 3633 8478
      3629 8480 3628 8487 3624 8487 3621 8491
      3617 8490 3611 8514 3614 8510 3615 8516
      3628 8522 3661 8478 3640 8466

BOYD

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 6, 5:45 AM CDT	Special Weather Statement	OHX	Houston, Humphreys, Stewart	30 min
Oct 6, 6:00 AM CDT	Special Weather Statement	OHX	Cheatham, Montgomery	45 min
Oct 6, 7:51 AM CDT	Special Weather Statement	OHX	Marshall, Maury	24 min
Oct 6, 8:20 AM CDT	Special Weather Statement	OHX	Bedford, Cannon, Coffee, Davidson, Rutherford, Warren and 1 more	40 min
Oct 6, 8:49 AM CDT	Special Weather Statement	OHX	Cumberland, Fentress, Putnam, White	41 min
Oct 6, 9:43 AM CDT	Special Weather Statement	OHX	Cumberland	17 min
Oct 6, 2:32 PM CDT	Special Weather Statement	OHX	Putnam, White	43 min
Oct 6, 2:34 PM CDT	Special Weather Statement	OHX	White	41 min
Oct 6, 2:36 PM CDT	Special Weather Statement	OHX	Hickman	39 min
Oct 6, 2:42 PM CDT	Special Weather Statement	OHX	Putnam	48 min
Oct 6, 2:55 PM CDT	Special Weather Statement	OHX	Hickman, Williamson	50 min
Oct 6, 3:01 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Maury, Williamson	29 min
Oct 6, 3:11 PM CDT	Special Weather Statement	OHX	Fentress	49 min
Oct 6, 3:33 PM CDT	Severe Thunderstorm Warning	OHX	Fentress	12 min
Oct 6, 3:51 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Rutherford, Williamson, Wilson	24 min
Oct 6, 4:13 PM CDT	Special Weather Statement	OHX	Trousdale	47 min
Oct 6, 4:14 PM CDT	Special Weather Statement	OHX	Wilson	46 min
Oct 6, 4:43 PM CDT	Special Weather Statement	OHX	Clay, Trousdale	47 min
Oct 6, 5:00 PM CDT	Special Weather Statement	OHX	Wilson	45 min
Oct 6, 5:30 PM CDT	Special Weather Statement	OHX	Williamson	45 min
Oct 6, 5:46 PM CDT	Special Weather Statement	OHX	DeKalb	29 min
Oct 6, 5:50 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	25 min
Oct 6, 5:53 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Putnam	37 min
Oct 6, 6:06 PM CDT	Severe Thunderstorm Warning	OHX	Rutherford, Wilson	39 min
Oct 6, 6:15 PM CDT	Special Weather Statement	OHX	Montgomery	30 min
Oct 6, 6:19 PM CDT	Special Weather Statement	OHX	Fentress	41 min
Oct 6, 6:31 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, DeKalb, Rutherford, Wilson	44 min
Oct 6, 6:34 PM CDT	Special Weather Statement	OHX	White	41 min
Oct 6, 6:39 PM CDT	Special Weather Statement	OHX	Overton, Pickett	51 min
Oct 6, 6:57 PM CDT	Special Weather Statement	OHX	Maury	48 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2014 Every severe thunderstorm warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.