Alert archive / Tennessee / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 185, NWS Nashville, TN

August 1, 2016Dickson County, Hickman County, Humphreys County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Aug 1, 2016, 4:56 PM CDT for Dickson County, Hickman County, Humphreys County, Tennessee. It was in force for 49 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: Aug 1, 2016, 4:56 PM CDT (21:56 UTC)
Expired: Aug 1, 2016, 5:45 PM CDT
In force: 49 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Dickson County, TN, Hickman County, TN, Humphreys County, TN

The radar

The Ft Campbell radar (KHPX), 101 km from the middle of the area, began a volume at 21:59 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 12:00Z, 9.9 hours before the alert went out and 110 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: 1021 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 803 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 32 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

652 
WUUS54 KOHX 012156
SVROHX
TNC043-081-085-012245-
/O.NEW.KOHX.SV.W.0185.160801T2156Z-160801T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
456 PM CDT MON AUG 1 2016

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN DICKSON COUNTY IN MIDDLE TENNESSEE...
  CENTRAL HUMPHREYS COUNTY IN MIDDLE TENNESSEE...
  NORTHWESTERN HICKMAN COUNTY IN MIDDLE TENNESSEE...

* UNTIL 545 PM CDT

* AT 455 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER HURRICANE
  MILLS...OR NEAR WAVERLY...MOVING EAST AT 40 MPH.

  HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  WAVERLY...NEW JOHNSONVILLE...HURRICANE MILLS...
  PINEWOOD AND BUCKSNORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3611 8784 3603 8735 3574 8759 3580 8772
      3584 8772 3584 8779 3591 8793 3594 8793
      3594 8800 3595 8802
TIME...MOT...LOC 2155Z 287DEG 35KT 3600 8782 

HAIL...0.75IN
WIND...60MPH
 
$$

BARNWELL

1 follow-up statement

385 
WWUS54 KOHX 012223
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
523 PM CDT MON AUG 1 2016

TNC043-081-085-012245-
/O.CON.KOHX.SV.W.0185.000000T0000Z-160801T2245Z/
DICKSON TN-HUMPHREYS TN-HICKMAN TN-
523 PM CDT MON AUG 1 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR SOUTHWESTERN DICKSON...SOUTHERN HUMPHREYS AND NORTHWESTERN
HICKMAN COUNTIES...

AT 522 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 9 MILES NORTH OF
CENTERVILLE...MOVING EAST AT 40 MPH.

HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
HURRICANE MILLS...BUCKSNORT AND PINEWOOD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3607 8760 3603 8735 3574 8759 3580 8772
      3584 8772 3584 8779 3591 8793
TIME...MOT...LOC 2222Z 287DEG 35KT 3592 8750 

HAIL...0.75IN
WIND...60MPH
 
$$

BARNWELL

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 1, 2:50 PM CDT, 2 hours 6 minutes earlier.

Area forecast discussion, Aug 1, 2:50 PM CDT, 2 hours 6 minutes before

Area Forecast Discussion
National Weather Service Nashville TN
250 PM CDT MON AUG 1 2016

.SHORT TERM...

It's another typically hot and muggy summer afternoon across the
Mid State, with temperatures ranging from the middle 80s to the
lower 90s. Most thunderstorms, as of 2 pm, were confined to the
northwest and northern Cumberland Plateau.

A shortwave will drop across the area tonight and keep at least a
small chance for thunderstorms running for Middle Tennessee. The
best chance will be across the north, where the atmospheric
moisture will be deepest.

Not much to say about the remainder of the short-term forecast,
through Friday, as we remain in a seasonably muggy and warm air
mass. Expect scattered mainly afternoon and evening thunderstorms
each day.

Upper level high pressure builds in from the lower and middle
Mississippi Valley by Thursday, with daytime highs creeping up a
degree or two each day. By Thursday afternoon, maximum heat index
values will be pushing to between 100 an 103 degrees in areas
west of the Cumberland Plateau.

.LONG TERM...

A shortwave sweeps from the upper Midwest into New England from
Thursday night into Saturday. This pushes a cold front southward
into the Ohio River Valley on Friday, which then pivots into a
northwest-to-southeast alignment along the eastern edge of the
upper level high.

By Sunday, a quasi-stationary front sets up from central Illinois
down to north-central Georgia, keeping Middle Tennessee in a warm
and muggy air mass. Since we'll end up south and west of the
frontal boundary, it doesn't look like any drier air will work
its way into our neck of the woods. As a result, we keep a chance
for thunderstorms running each day during the extended period,
from Friday through next Monday.

&&

.AVIATION...
18Z TAF DISCUSSION.

BNA/CKV/CSV...Convection is already beginning to fire across
Middle Tennessee. Earlier line of storms coming out of MO & IL
continues to build southward, so the best chance for storms this
afternoon will be north of I-40. Have staggered the TEMPO groups
for our 3 terminals for this west-to-east progression of storms
during the afternoon. Perhaps some light fog after 06Z at
CKV/CSV.

&&

.PRELIMINARY POINT TEMPS/POPS...
Nashville      73  92  74  93  75 /  30  30  10  30  20
Clarksville    73  90  73  91  74 /  30  40  10  30  20
Crossville     67  85  68  87  69 /  40  30  10  20  20
Columbia       73  90  72  93  73 /  30  40  10  30  20
Lawrenceburg   73  90  72  92  73 /  30  40  10  30  20
Waverly        73  90  73  92  74 /  30  50  10  30  10

&&

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

&&

DISCUSSION......19
AVIATION........01/Boyd

Hazardous weather outlook, Aug 1, 6:30 AM CDT, 10 hours 26 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
630 AM CDT MON AUG 1 2016

TNZ005>011-023>034-056>066-075-077>080-093>095-021130-
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-
630 AM CDT MON AUG 1 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF MIDDLE
TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

HURLEY

In the hours before

Special weather statement, Aug 1, 4:11 PM CDT, 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
411 PM CDT MON AUG 1 2016

TNZ006-023>025-012200-
MONTGOMERY TN-DICKSON TN-HOUSTON TN-HUMPHREYS TN-
411 PM CDT MON AUG 1 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN DICKSON...HOUSTON...
SOUTHWESTERN MONTGOMERY AND NORTHEASTERN HUMPHREYS COUNTIES UNTIL 500
PM CDT...

AT 410 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
TENNESSEE RIDGE...OR NEAR ERIN...MOVING EAST AT 20 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
WAVERLY...ERIN...MCEWEN...TENNESSEE RIDGE...VANLEER...
CUMBERLAND CITY AND SLAYDEN.

LAT...LON 3633 8782 3633 8780 3634 8776 3636 8773
      3637 8772 3637 8759 3638 8759 3638 8737
      3601 8752 3617 8788
TIME...MOT...LOC 2110Z 286DEG 16KT 3624 8777

BARNWELL

Special weather statement, Aug 1, 4:38 PM CDT, 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
438 PM CDT MON AUG 1 2016

TNZ023>025-057-012230-
DICKSON TN-HOUSTON TN-HICKMAN TN-HUMPHREYS TN-
438 PM CDT MON AUG 1 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN DICKSON...
SOUTHEASTERN HOUSTON...HUMPHREYS AND NORTHWESTERN HICKMAN COUNTIES
UNTIL 530 PM CDT...

AT 438 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
WAVERLY...MOVING EAST AT 40 MPH.

HALF INCH HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
DICKSON...WAVERLY...CAMDEN...NEW JOHNSONVILLE...MCEWEN...
HURRICANE MILLS...CHARLOTTE...VANLEER...NUNNELLY...
PINEWOOD AND BUCKSNORT.

LAT...LON 3600 8800 3603 8800 3613 8792 3617 8792
      3618 8793 3621 8794 3622 8795 3623 8727
      3580 8750 3591 8793 3594 8793 3594 8800
      3595 8802 3597 8802
TIME...MOT...LOC 2138Z 274DEG 35KT 3608 8785

BARNWELL

Special weather statement, Aug 1, 4:49 PM CDT, 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
449 PM CDT MON AUG 1 2016

TNZ006-025-026-012230-
CHEATHAM TN-MONTGOMERY TN-DICKSON TN-
449 PM CDT MON AUG 1 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN DICKSON...CHEATHAM AND
SOUTHEASTERN MONTGOMERY COUNTIES UNTIL 530 PM CDT...

AT 449 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 15
MILES SOUTH OF CLARKSVILLE...MOVING EAST AT 30 MPH.

HALF INCH HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
ASHLAND CITY...PLEASANT VIEW...VANLEER...SLAYDEN...CUNNINGHAM AND
CHEATHAM DAM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3644 8710 3645 8709 3643 8709 3639 8701
      3615 8700 3624 8749 3641 8749 3645 8711
TIME...MOT...LOC 2149Z 272DEG 27KT 3635 8740

BARNWELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 4:11 PM CDT	Special Weather Statement	OHX	Houston	49 min
Aug 1, 4:38 PM CDT	Special Weather Statement	OHX	Dickson, Humphreys	52 min
Aug 1, 4:49 PM CDT	Special Weather Statement	OHX	Cheatham	41 min
Aug 1, 4:58 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Montgomery	21 min
Aug 1, 5:09 PM CDT	Special Weather Statement	OHX	Cheatham, Dickson	51 min
Aug 1, 5:30 PM CDT	Severe Thunderstorm Warning	OHX	Hickman	30 min
Aug 1, 5:49 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Williamson	26 min
Aug 1, 5:51 PM CDT	Special Weather Statement	OHX	Hickman, Lewis, Perry	39 min
Aug 1, 5:54 PM CDT	Special Weather Statement	OHX	Cheatham, Davidson	51 min
Aug 1, 5:58 PM CDT	Special Weather Statement	OHX	Williamson	47 min
Aug 1, 6:11 PM CDT	Special Weather Statement	OHX	Robertson	49 min
Aug 1, 6:24 PM CDT	Special Weather Statement	OHX	Marshall, Maury	51 min
Aug 1, 6:30 PM CDT	Special Weather Statement	OHX	Rutherford, Williamson	45 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2016 Every severe thunderstorm warning in 2016

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.