Alert archive / Tennessee / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 97, NWS Nashville, TN

May 3, 20206 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at May 3, 2020, 4:43 PM CDT for 6 counties in Tennessee. It was in force for 47 min. 7 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: May 3, 2020, 4:43 PM CDT (21:43 UTC)
Expired: May 3, 2020, 5:30 PM CDT
In force: 47 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Davidson County, TN, Macon County, TN, Robertson County, TN, Sumner County, TN, Trousdale County, TN, Wilson County, TN

The radar

The Nashville radar (KOHX), 27 km from the middle of the area, began a volume at 21:46 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
May 3, 4:48 PM CDT	TSTM WND DMG	1 N Hermitage Hills, TN	TREE ON HOUSE IN THE BONNAS NEIGHBORHOOD IN HERMITAGE
May 3, 4:50 PM CDT	TSTM WND DMG	1 S Mount Juliet, TN	TREE DOWN ON HOME OF NWS EMPLOYEE. NUMEROUS TREES DOWN IN NEIGHBORHOOD
May 3, 4:50 PM CDT	TSTM WND DMG	1 Sw Mount Juliet, TN	TREE FELL ONTO HOME ON BROOKSTONE BLVD IN MOUNT JULIET CAUSING MAJOR DAMAGE
May 3, 4:51 PM CDT	TSTM WND DMG	2 W Green Hill, TN	TREE FELL ONTO A CAR ON SHUTE LANE NEAR BRANDYWINE
May 3, 4:54 PM CDT	TSTM WND DMG	4 Ene Mount Juliet, TN	NUMEROUS TREES DOWN ACROSS MOUNT JULIET. BARN COLLAPSED AT 8485 LEBANON ROAD.
May 3, 4:58 PM CDT	TSTM WND DMG	Gallatin, TN	NUMEROUS TREES DOWN IN GALLATIN
May 3, 5:04 PM CDT	TSTM WND GST 70	1 N Lebanon, TN	TREES DOWN.

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 7 storm reports to this severe thunderstorm warning; the first came 5 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 3, 3:40 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.7 hours before the alert went out and 40 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: 1582 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 201 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

541 
WUUS54 KOHX 032143
SVROHX
TNC037-111-147-165-169-189-032230-
/O.NEW.KOHX.SV.W.0097.200503T2143Z-200503T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
443 PM CDT Sun May 3 2020

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Northeastern Davidson County in Middle Tennessee...
  Sumner County in Middle Tennessee...
  Northern Wilson County in Middle Tennessee...
  Western Macon County in Middle Tennessee...
  Trousdale County in Middle Tennessee...
  Eastern Robertson County in Middle Tennessee...

* Until 530 PM CDT.

* At 443 PM CDT, severe thunderstorms were located along a line
  extending from near Springfield to near White House to near
  Hermitage, moving northeast at 65 mph.

  HAZARD...60 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Gallatin, Lebanon, Springfield, Hartsville, Madison,
  Hendersonville, Mount Juliet, Goodlettsville, White House,
  Millersville, Lakewood, Westmoreland, Ridgetop, Cross Plains,
  Portland, Hermitage, Belinda City, Old Hickory, Rural Hill and
  Orlinda.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3664 8610 3632 8611 3629 8614 3627 8612
      3614 8612 3613 8675 3643 8676 3657 8694
      3665 8681 3665 8659 3663 8657 3665 8651
TIME...MOT...LOC 2143Z 238DEG 57KT 3658 8685 3646 8670 3617 8669 

HAIL...0.88IN
WIND...60MPH
 
$$

Whitehead

1 follow-up statement

510 
WWUS54 KOHX 032203
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
503 PM CDT Sun May 3 2020

TNC037-111-147-165-169-189-032230-
/O.CON.KOHX.SV.W.0097.000000T0000Z-200503T2230Z/
Davidson TN-Sumner TN-Wilson TN-Macon TN-Trousdale TN-Robertson TN-
503 PM CDT Sun May 3 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR EAST CENTRAL DAVIDSON...SUMNER...NORTHERN WILSON...WESTERN
MACON...TROUSDALE AND EASTERN ROBERTSON COUNTIES...

At 503 PM CDT, severe thunderstorms were located along a line
extending from 13 miles south of Memphis Junction to 8 miles east of
Portland to near Gallatin, moving northeast at 65 mph.

These are very dangerous storms.

HAZARD...80 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

Locations impacted include...
Gallatin, Lebanon, Springfield, Hartsville, Hendersonville, Mount
Juliet, Goodlettsville, White House, Millersville, Lakewood,
Westmoreland, Cross Plains, Portland, Hermitage, Belinda City, Old
Hickory, Orlinda, Mitchellville, Bledsoe Creek State Park and
Dickerson Chapel Recreation Area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.
 
This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.

&&

LAT...LON 3664 8610 3632 8611 3629 8614 3627 8612
      3614 8612 3615 8663 3636 8668 3642 8676
      3643 8676 3657 8694 3665 8681 3665 8659
      3663 8657 3665 8651
TIME...MOT...LOC 2203Z 238DEG 57KT 3674 8652 3662 8637 3633 8637 

HAIL...0.88IN
WIND...80MPH
 
$$

Whitehead

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 3, 2:17 PM CDT, 2 hours 26 minutes earlier.

Area forecast discussion, May 3, 2:17 PM CDT, 2 hours 26 minutes before

Area Forecast Discussion
National Weather Service Nashville TN
217 PM CDT Sun May 3 2020

.DISCUSSION...

Bowing line of thunderstorms currently pushing across the MO
bootheel. This activity will be reaching the northwestern extremes
of middle TN between 3 pm and 4 pm. The atmosphere across the mid
state is quite unstable with dewpoints now well into the 60s and sfc
capes around 2000 j/kg in our northwest. There is a warm layer
around 700 mb but caps are diminishing with time, especially north
of I-40. Additional partial development will be possible ahead of
the main line of advancing storms. It will however take a little
longer for that activity to commence. The threat of severe weather
is due primarily to the advancing line of storms and a severe tstm
watch is in effect until 6 PM for our northwest. This line may need
to be extended eastward later. Large hail and damaging winds are the
threats for this afternoon. Otw, average qpf amounts tonight will
average around one half inch. However, some cell training will
produce some locally heavier amounts of an inch or so.

Moving on, boundary will push south overnight. The better
instability zone will switch to south of us on Monday. And with
little forcing, I am not seeing much during the day.

Monday night, a warm front will be lifting northward. Instabilities
will begin to increase and we could see a few strong storms west of
I-65 at that time. During the day Tuesday, the sfc low will move
eastward across KY with instability increasing to the east of I-65
as the day progresses. It looks as though strong storms will again
be possible, mainly east of I-65 on Tuesday afternoon. This will be
in advance of the main cold frontal passage.

Near term temps, looking rather warm, particularly our overnight
lows which will be in the lower 60s. Cooler Tuesday night behind the
aforementioned fropa.

In the ext fcst, showers are possible in our east on Wednesday.
Models are rather peculiar at that time as they try to strum up sfc
instability with a northerly sfc fetch. Not buying it so will
exclude thunder. Following this, models are leaning toward a Gulf
system by late week with rain showers returning.

For the ext temps, its looking below normal with highs, for Thursday
on, mostly in the 60s. And just to serve notice, the 6-10 day
outlook reflects well below normal temperatures. Could be some frost
advisory perhaps in our future? We shall see.

&&

.AVIATION...
18Z TAF DISCUSSION.

VFR conditions expected for most of this TAF cycle, but a cluster
of +TSRA headed towards Middle TN will bring IFR to LIFR
conditions with very gusty west winds this afternoon/early
evening. While each terminal is expected to get a couple hour
break where VFR could return this evening, additional TS are
expected throughout the evening, with degraded conditions for the
rest of the night.

&&

.PRELIMINARY POINT TEMPS/POPS...
Nashville      60  77  62  78  49 /  70  20  70  40  30
Clarksville    55  76  59  75  48 /  70  30 100  30  10
Crossville     57  72  58  76  48 /  70  20  90  90  30
Columbia       62  79  64  79  49 /  60  30  30  30  20
Lawrenceburg   63  78  64  81  50 /  50  30  30  40  30
Waverly        57  77  61  76  48 /  70  30  80  30  10

&&

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

&&

DISCUSSION......21
AVIATION........Unger

Hazardous weather outlook, May 3, 5:12 AM CDT, 11 hours 31 minutes before

Hazardous Weather Outlook
National Weather Service Nashville TN
512 AM CDT Sun May 3 2020

TNZ005>011-023>034-056>066-075-077>080-093>095-041015-
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-
512 AM CDT Sun May 3 2020

This Hazardous Weather Outlook is for portions of Middle Tennessee.

.DAY ONE...Today and Tonight.

Strong to severe thunderstorms will be possible in the afternoon and
evening today. Main threat if any strong storms develop will be
damaging winds and hail, along with isolated flash flooding possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Strong to severe thunderstorms will be possible again during the
afternoon and evening on Monday across the mid state, with main
threats being hail and damaging winds.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather to the NWS while following all local, state,
and CDC guidelines.

In the hours before

Local storm report, May 3, 4:09 PM CDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
409 PM CDT SUN MAY 03 2020

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

0405 PM     TSTM WND DMG     LINDEN                  35.61N  87.84W
05/03/2020                   PERRY              TN   SOCIAL MEDIA

            NUMEROUS REPORTS OF TREES AND POWER LINES DOWN WITH
            POWER OUTAGES ACROSS PERRY COUNTY

&&

EVENT NUMBER OHX2000335

SHAMBURGER

Local storm report, May 3, 4:17 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
417 PM CDT SUN MAY 03 2020

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

0415 PM     TSTM WND DMG     3 NE TENNESSEE CITY     36.12N  87.47W
05/03/2020                   DICKSON            TN   SOCIAL MEDIA

            TREES UPROOTED AND POWER LINES DOWN ON WALNUT GROVE
            ROAD

&&

EVENT NUMBER OHX2000336

SHAMBURGER

Local storm report, May 3, 4:24 PM CDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
424 PM CDT SUN MAY 03 2020

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

0345 PM     TSTM WND DMG     ERIN                    36.32N  87.70W
05/03/2020                   HOUSTON            TN   EMERGENCY MNGR

            NUMEROUS TREES DOWN AND POWER OUTAGES ACROSS HOUSTON
            COUNTY

&&

EVENT NUMBER OHX2000337

SHAMBURGER

Local storm report, May 3, 4:31 PM CDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
431 PM CDT SUN MAY 03 2020

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

0400 PM     TSTM WND DMG     DICKSON                 36.08N  87.38W
05/03/2020                   DICKSON            TN   AMATEUR RADIO

            NUMEROUS TREES DOWN AND POWER OUTAGES THROUGHOUT
            DICKSON COUNTY INCLUDING ON HUMMINGBIRD LANE. TREE ON
            HOUSE AT WALNUT GROVE ROAD AT YELLOW CREEK ROAD

&&

EVENT NUMBER OHX2000338

SHAMBURGER

Local storm report, May 3, 4:34 PM CDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
434 PM CDT SUN MAY 03 2020

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

0419 PM     TSTM WND DMG     ASHLAND CITY            36.28N  87.06W
05/03/2020                   CHEATHAM           TN   SOCIAL MEDIA

            TREE LIMBS DOWN AND POWER OUTAGES

&&

EVENT NUMBER OHX2000339

SHAMBURGER

Local storm report, May 3, 4:40 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
440 PM CDT SUN MAY 03 2020

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

0430 PM     TSTM WND DMG     COLUMBIA                35.62N  87.05W
05/03/2020                   MAURY              TN   AMATEUR RADIO

            TREES DOWN IN COLUMBIA...POWER OUT ACROSS MUCH OF THE
            COUNTY.

&&

EVENT NUMBER OHX2000340

21

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 2:56 PM CDT	Special Weather Statement	OHX	Stewart	34 min
May 3, 3:13 PM CDT	Severe Thunderstorm Warning	OHX	Houston, Montgomery, Stewart	47 min
May 3, 3:22 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Houston, Humphreys	38 min
May 3, 3:37 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Humphreys, Lewis, Perry, Wayne	38 min
May 3, 3:44 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Houston, Montgomery, Stewart	46 min
May 3, 3:54 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Hickman, Humphreys, Maury, Williamson	36 min
May 3, 4:11 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Montgomery, Robertson, Sumner	34 min
May 3, 4:12 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Hickman, Lawrence, Lewis, Maury, Wayne	48 min
May 3, 4:17 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Hickman, Marshall, Maury, Rutherford and 1 more	43 min
May 3, 4:26 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence, Wayne	19 min
May 3, 4:35 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Wayne	40 min
May 3, 4:41 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Giles, Marshall, Maury, Rutherford, Williamson	49 min
May 3, 4:49 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Davidson, DeKalb, Rutherford, Smith, Wilson	41 min
May 3, 5:06 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, Giles, Grundy, Marshall and 2 more	39 min
May 3, 5:11 PM CDT	Severe Thunderstorm Warning	OHX	Clay, DeKalb, Jackson, Macon, Putnam, Smith and 4 more	49 min
May 3, 5:18 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, DeKalb, Van Buren, Warren, White	42 min
May 3, 5:23 PM CDT	Tornado Warning	OHX	Clay, Jackson, Macon, Smith, Trousdale	16 min
May 3, 5:43 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Fentress, Jackson, Overton, Pickett, Putnam	62 min
May 3, 5:44 PM CDT	Severe Thunderstorm Warning	OHX	Grundy	16 min
May 3, 5:53 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Fentress, Putnam, Van Buren, White	37 min
May 3, 6:21 PM CDT	Special Weather Statement	OHX	Wayne	24 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2020 Every severe thunderstorm warning in 2020

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.