Alert archive / Tennessee / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 45, NWS Nashville, TN

May 19, 2013DeKalb County, Smith County, Wilson County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at May 19, 2013, 6:18 AM CDT for DeKalb County, Smith County, Wilson County, Tennessee. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 19, 2013, 6:18 AM CDT (11:18 UTC)
Expired: May 19, 2013, 7:00 AM CDT
In force: 42 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties DeKalb County, TN, Smith County, TN, Wilson County, TN

The radar

The Nashville radar (KOHX), 42 km from the middle of the area, began a volume at 11:20 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 00:00Z, 11.3 hours before the alert went out and 45 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: 805 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1193 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 132 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

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

923 
WUUS54 KOHX 191118
SVROHX
TNC041-159-189-191200-
/O.NEW.KOHX.SV.W.0045.130519T1118Z-130519T1200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
618 AM CDT SUN MAY 19 2013

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SMITH COUNTY IN MIDDLE TENNESSEE...
  EASTERN WILSON COUNTY IN MIDDLE TENNESSEE...
  NORTHWESTERN DE KALB COUNTY IN MIDDLE TENNESSEE...

* UNTIL 700 AM CDT

* AT 615 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE SEVERE 
  STORMS EXTENDED FROM LEBANON TO WATERTOWN...AND WERE MOVING EAST 
  AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CARTHAGE...WATERTOWN...GORDONSVILLE...TUCKERS CROSSROADS...
  DICKERSON CHAPEL RECREATION AREA...ALEXANDRIA...HICKMAN...CENTER
  HILL LAKE...SOUTH CARTHAGE...DOWELLTOWN AND LIBERTY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS CONTAIN DAMAGING WINDS 58 MPH OR STRONGER...OR
HAIL ONE INCH OR LARGER. FOR YOUR SAFETY...TAKE SHELTER INSIDE A
STURDY BUILDING NOW.

&&

LAT...LON 3600 8576 3596 8601 3596 8608 3597 8609
      3596 8611 3596 8621 3630 8639 3632 8628
      3630 8626 3632 8625 3633 8620 3629 8613
      3634 8609 3637 8592
TIME...MOT...LOC 1118Z 270DEG 12KT 3627 8629 3602 8614

$$

SHAMBURGER

1 follow-up statement

508 
WWUS54 KOHX 191141
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
641 AM CDT SUN MAY 19 2013

TNC041-159-189-191200-
/O.CON.KOHX.SV.W.0045.000000T0000Z-130519T1200Z/
SMITH TN-WILSON TN-DE KALB TN-
641 AM CDT SUN MAY 19 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
DE KALB...EASTERN WILSON AND SMITH COUNTIES UNTIL 700 AM CDT...

AT 635 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A CLUSTER OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE 
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE 
LOCATED ALONG TWO LINES...WITH ONE LINE EXTENDING FROM LEBANON TO 
WATERTOWN...AND ANOTHER LINE EXTENDING FROM CARTHAGE TO 
GORDONSVILLE. BOTH LINES OF STORMS WERE MOVING EAST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  CARTHAGE...WATERTOWN...GORDONSVILLE...HICKMAN...TUCKERS
  CROSSROADS...CENTER HILL LAKE...EDGAR EVANS STATE PARK...DICKERSON
  CHAPEL RECREATION AREA...SOUTH CARTHAGE...LIBERTY...DOWELLTOWN AND
  ALEXANDRIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURE'S LEADING KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

LAT...LON 3600 8576 3596 8601 3596 8608 3597 8609
      3596 8611 3596 8616 3630 8634 3632 8628
      3630 8626 3632 8625 3633 8620 3629 8613
      3634 8609 3637 8592
TIME...MOT...LOC 1138Z 271DEG 13KT 3625 8619 3600 8604

$$

SHAMBURGER

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 May 19, 3:45 AM CDT, 2 hours 33 minutes earlier.

Area forecast discussion, May 19, 3:45 AM CDT, 2 hours 33 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
345 AM CDT SUN MAY 19 2013

.DISCUSSION...

WARM AND MUGGY AIRMASS ACROSS THE REGION THIS MORNING WITH
SCATTERED SHRA AND A FEW TSRA ONGOING. AREA WILL STILL BE
INFLUENCED BY REMNANT SHORT WAVE JUST TO OUR NORTH TODAY AS DEEPER
RIDGING BUILDS IN THE FROM THE WEST. WILL KEEP INHERITED FCST POPS
GOING...20 PCT WEST INCREASING TO LIKELY ON THE PLATEAU. A
STRONG/SEVERE STORM CANNOT BE RULED OUT TODAY WITH MODERATE
INSTABILITY IN PLACE. MAV TEMPS LOOK RSNBL.

DEEP RIDGING THEN BUILDS IN FOR THE FIRST PART OF THE WORKWEEK.
MONDAY LOOKS DRY FOR MOST OF THE REGION BUT WILL CARRY A 20 POP ON
THE PLATEAU FOR DIURNAL CONVECTION. WILL CONTINUE LOW POPS ON
TUESDAY WITH INCREASING DIURNAL INSTABILITY. SUMMER LIKE
TEMPERATURES APPROACHING 90 BOTH DAYS AWAY FROM THE PLATEAU.

NEW MEDIUM RANGE GUIDANCE IN DECENT AGREEMENT THAT WED/WED NGT
WILL BE THE FOCUS FOR RAIN CHANCES WITH THE NEXT SYSTEM. MID LEVEL
WIND FIELDS LOOK A LITTLE BETTER ON THE 00Z RUNS...AROUND 40 KTS
OR SO...AND THERE IS DECENT SPEED SHEAR. DEPENDING ON THE DEGREE
OF INSTABILITY WE REALIZE THERE COULD BE SOME SEVERE WEATHER AND
WILL MENTION THE POTENTIAL IN THE UPDATED HWO.

HIGH PRESSURE THEN BUILDS IN FROM THE NORTH THROUGH WHAT LOOKS TO
BE A PRETTY NICE HOLIDAY WEEKEND.

&&

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE      86  68  89  69 /  40  10  05  10
CLARKSVILLE    87  66  88  68 /  30  10  05  10
CROSSVILLE     79  64  84  65 /  60  40  20  10
COLUMBIA       86  68  89  69 /  40  10  05  10
LAWRENCEBURG   86  67  88  67 /  30  10  05  05
WAVERLY        87  67  88  69 /  30  10  05  10

&&

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

JOHNSTONE

Hazardous weather outlook, May 19, 5:01 AM CDT, 1 hour 17 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
501 AM CDT SUN MAY 19 2013

TNZ005>011-022>034-056>066-075-077>080-093>095-201015-
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-
501 AM CDT SUN MAY 19 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED OVER THE AREA TODAY. AN ISOLATED
STRONG TO SEVERE STORM IS POSSIBLE WITH DAMAGING WINDS AND LARGE
HAIL THE MAIN THREAT. LOCALLY HEAVY RAINFALL IS ALSO POSSIBLE WITH
SOME OF THE SLOWER MOVING STORMS.

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

A COLD FRONT WILL MOVE ACROSS THE AREA WEDNESDAY INTO WEDNESDAY
NIGHT. THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG AND AHEAD OF
THIS FRONT AND A FEW STORMS COULD BE STRONG TO SEVERE.

.SPOTTER CALL TO ACTION 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

JOHNSTONE

In the hours before

Special weather statement, May 19, 4:11 AM CDT, 2 hours 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
411 AM CDT SUN MAY 19 2013

TNZ066-190945-
CUMBERLAND-
411 AM CDT SUN MAY 19 2013

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

AT 407 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM 7 MILES SOUTHEAST OF FAIRFIELD GLADE...MOVING
EAST AT 15 MPH.

SOME LOCATIONS IN THE PATH INCLUDE CRAB ORCHARD.

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

LAT...LON 3589 8471 3585 8473 3582 8478 3581 8482
      3586 8521 3606 8517 3600 8472 3599 8471
      3591 8467

SHAMBURGER

Special weather statement, May 19, 4:15 AM CDT, 2 hours 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
415 AM CDT SUN MAY 19 2013

TNZ007-191000-
ROBERTSON-
415 AM CDT SUN MAY 19 2013

...SIGNIFICANT WEATHER ADVISORY FOR ROBERTSON COUNTY...

AT 412 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM 8 MILES WEST OF SPRINGFIELD...MOVING EAST AT 20
MPH.

SOME LOCATIONS IN THE PATH INCLUDE CEDAR HILL...SPRINGFIELD...
GREENBRIER AND RIDGETOP.

SMALL HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM.

LAT...LON 3655 8672 3641 8675 3639 8678 3636 8679
      3635 8682 3636 8684 3638 8685 3637 8687
      3639 8690 3637 8699 3640 8701 3645 8711
      3656 8710

SHAMBURGER

Special weather statement, May 19, 4:48 AM CDT, 1 hour 30 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
448 AM CDT SUN MAY 19 2013

TNZ027-028-191030-
DAVIDSON-WILSON-
448 AM CDT SUN MAY 19 2013

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN DAVIDSON AND WESTERN
WILSON COUNTIES...

AT 446 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM NEAR DONELSON...MOVING EAST AT 20 MPH.

SOME LOCATIONS IN THE PATH INCLUDE ANTIOCH...BERRY HILL...LAKEWOOD...
HERMITAGE...PERCY PRIEST LAKE...MOUNT JULIET...RURAL HILL...BELINDA
CITY...GLADEVILLE AND LEBANON.

SMALL HAIL IS EXPECTED WITH THIS STORM.

LAT...LON 3603 8624 3604 8643 3610 8651 3607 8652
      3608 8654 3605 8657 3606 8677 3624 8678
      3625 8663 3624 8659 3626 8658 3628 8625

SHAMBURGER

Local storm report, May 19, 5:05 AM CDT, 1 hour 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
505 AM CDT SUN MAY 19 2013

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

0504 AM     HAIL             HERMITAGE               36.20N  86.62W
05/19/2013  E0.88 INCH       DAVIDSON           TN   TRAINED SPOTTER

&&

EVENT NUMBER OHX1300410

TJ

Special weather statement, May 19, 5:13 AM CDT, 1 hour 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
513 AM CDT SUN MAY 19 2013

TNZ008-028-062-191100-
RUTHERFORD-SUMNER-WILSON-
513 AM CDT SUN MAY 19 2013

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN RUTHERFORD...SOUTHERN
SUMNER AND WILSON COUNTIES...

AT 511 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM HENDERSONVILLE TO
MURFREESBORO...MOVING EAST AT 20 MPH.

SOME LOCATIONS IN THE PATH INCLUDE SMYRNA...RURAL HILL...
HENDERSONVILLE...MOUNT JULIET...MURFREESBORO...BELINDA CITY...
WALTERHILL...GLADEVILLE...GALLATIN...LASCASSAS...CEDARS OF LEBANON
STATE PARK AND LEBANON.

PENNY SIZE HAIL...WINDS 30 TO 40 MPH...HEAVY RAINFALL...AND FREQUENT
LIGHTNING ARE EXPECTED WITH THESE STORMS.

LAT...LON 3642 8630 3591 8615 3587 8617 3579 8619
      3580 8650 3606 8657 3608 8652 3610 8651
      3611 8653 3613 8653 3617 8657 3624 8659
      3625 8664 3643 8668

SHAMBURGER

Special weather statement, May 19, 5:57 AM CDT, 21 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
557 AM CDT SUN MAY 19 2013

TNZ008-028>030-064-191145-
DE KALB-SMITH-SUMNER-TROUSDALE-WILSON-
557 AM CDT SUN MAY 19 2013

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWEST DE
KALB...SMITH...SOUTHEAST SUMNER...TROUSDALE AND WILSON COUNTIES...

AT 555 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM CASTALIAN
SPRINGS TO WATERTOWN...MOVING EAST AT 25 MPH.

SOME LOCATIONS IN THE PATH INCLUDE BLEDSOE CREEK STATE PARK...
LEBANON...DICKERSON CHAPEL RECREATION AREA...WATERTOWN...TUCKERS
CROSSROADS...HARTSVILLE...ALEXANDRIA...LIBERTY...CENTER HILL
LAKE...DOWELLTOWN...DIXON SPRINGS...CARTHAGE...AND HICKMAN.

PENNY SIZE HAIL...WINDS 30 TO 40 MPH...HEAVY RAINFALL...AND
FREQUENT LIGHTNING ARE EXPECTED WITH THESE STORMS.

LAT...LON 3648 8618 3644 8616 3642 8594 3600 8575
      3596 8601 3597 8609 3596 8611 3598 8631
      3645 8647 3648 8622

SHAMBURGER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 3:29 AM CDT	Special Weather Statement	OHX	Maury	31 min
May 19, 4:00 AM CDT	Special Weather Statement	OHX	Marshall	30 min
May 19, 4:11 AM CDT	Special Weather Statement	OHX	Cumberland	34 min
May 19, 4:15 AM CDT	Special Weather Statement	OHX	Robertson	45 min
May 19, 4:48 AM CDT	Special Weather Statement	OHX	Wilson	42 min
May 19, 5:13 AM CDT	Special Weather Statement	OHX	Rutherford, Wilson	47 min
May 19, 5:57 AM CDT	Special Weather Statement	OHX	Smith, Trousdale, Wilson	48 min
May 19, 6:34 AM CDT	Special Weather Statement	OHX	Sumner	26 min
May 19, 8:48 AM CDT	Special Weather Statement	OHX	Robertson, Sumner	42 min
May 19, 10:07 AM CDT	Special Weather Statement	OHX	Macon, Sumner, Trousdale	38 min
May 19, 11:01 AM CDT	Special Weather Statement	OHX	Cumberland, Fentress, Overton	44 min
May 19, 11:28 AM CDT	Flash Flood Warning	OHX	Cumberland, Fentress, Overton, Putnam	3 hr
May 19, 12:33 PM CDT	Special Weather Statement	OHX	White	42 min
May 19, 12:36 PM CDT	Special Weather Statement	OHX	White	39 min
May 19, 1:06 PM CDT	Special Weather Statement	OHX	Van Buren, White	54 min
May 19, 1:15 PM CDT	Severe Thunderstorm Warning	OHX	Van Buren	45 min
May 19, 1:52 PM CDT	Flash Flood Warning	OHX	Cannon, Cumberland, DeKalb, Van Buren, Warren, White	4 hr
May 19, 2:08 PM CDT	Severe Thunderstorm Warning	OHX	Van Buren, Warren	37 min
May 19, 2:23 PM CDT	Flash Flood Warning	OHX	Cumberland	4 hr
May 19, 2:43 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Warren	32 min
May 19, 3:09 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, DeKalb, Warren	21 min
May 19, 3:14 PM CDT	Special Weather Statement	OHX	Grundy	31 min
May 19, 3:36 PM CDT	Special Weather Statement	OHX	Cannon	24 min
May 19, 3:45 PM CDT	Special Weather Statement	OHX	Grundy	30 min
May 19, 3:48 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Rutherford, Wilson	27 min
May 19, 3:56 PM CDT	Severe Thunderstorm Warning	OHX	Coffee, Grundy	34 min
May 19, 4:12 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, DeKalb, Rutherford, Wilson	33 min
May 19, 4:23 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Rutherford	22 min
May 19, 4:43 PM CDT	Special Weather Statement	OHX	Cannon	32 min
May 19, 4:48 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Rutherford	27 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.