Alert archive / Tennessee / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 102, NWS Nashville, TN

May 3, 20206 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at May 3, 2020, 5:43 PM CDT for 6 counties in Tennessee. It was in force for 62 min. 2 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, 5:43 PM CDT (22:43 UTC)
Expired: May 3, 2020, 6:45 PM CDT
In force: 62 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Clay County, TN, Fentress County, TN, Jackson County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN

The radar

The Knoxville radar (KMRX), 140 km from the middle of the area, began a volume at 22:44 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, 5:50 PM CDT	TSTM WND DMG	Cookeville, TN	MULTIPLE REPORTS OF TREES DOWN ACROSS PUTNAM COUNTY WITH POWER OUTAGES
May 3, 5:55 PM CDT	TSTM WND DMG	Livingston, TN	TREES DOWN BLOCKING GREENBRIAR ROAD AND HILHAM HIGHWAY AT STANDING STONE HIGHWAY. POWER LINES DOWN ON CARMACK STREET.

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 7 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, 10.7 hours before the alert went out and 149 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.

894 
WUUS54 KOHX 032243
SVROHX
TNC027-049-087-133-137-141-032345-
/O.NEW.KOHX.SV.W.0102.200503T2243Z-200503T2345Z/

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

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Overton County in Middle Tennessee...
  Pickett County in Middle Tennessee...
  Eastern Jackson County in Middle Tennessee...
  Clay County in Middle Tennessee...
  Central Putnam County in Middle Tennessee...
  Fentress County in Middle Tennessee...

* Until 645 PM CDT.

* At 542 PM CDT, severe thunderstorms were located along a line
  extending from near Red Boiling Springs to near Gainesboro to near
  Baxter, moving east at 50 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Cookeville, Livingston, Jamestown, Celina, Byrdstown, Algood,
  Monterey, Allardt, Grimsley, Moss, Rickman, Pall Mall, Wolf River
  Dock, Clarkrange, Crawford, Dale Hollow Lake, Pickett State Park,
  Standing Stone State Park and Ashlock.

This includes Interstate 40 between mile markers 285 and 301.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This is a DANGEROUS SITUATION. These storms are producing widespread 
wind damage. SEEK SHELTER NOW inside a sturdy structure and stay 
away from windows! 

&&

LAT...LON 3637 8470 3638 8472 3635 8473 3635 8474
      3634 8474 3633 8477 3630 8480 3628 8488
      3624 8488 3621 8491 3616 8491 3615 8500
      3617 8503 3615 8505 3611 8554 3635 8557
      3662 8566 3663 8523 3660 8478 3640 8466
TIME...MOT...LOC 2242Z 256DEG 42KT 3650 8577 3635 8570 3620 8567 

HAIL...<.75IN
WIND...70MPH
 
$$

Whitehead

1 follow-up statement

025 
WWUS54 KOHX 032316
SVSOHX

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

TNC087-141-032326-
/O.CAN.KOHX.SV.W.0102.000000T0000Z-200503T2345Z/
Jackson TN-Putnam TN-
616 PM CDT Sun May 3 2020

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN JACKSON AND CENTRAL
PUTNAM COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
Middle Tennessee.

LAT...LON 3637 8470 3638 8472 3635 8473 3633 8477
      3630 8480 3628 8488 3624 8488 3621 8491
      3616 8491 3615 8500 3617 8503 3615 8505
      3614 8511 3615 8521 3617 8525 3637 8528
      3662 8539 3663 8516 3660 8478 3640 8466
TIME...MOT...LOC 2316Z 256DEG 42KT 3659 8532 3644 8525 3629 8522 

$$

TNC027-049-133-137-032345-
/O.CON.KOHX.SV.W.0102.000000T0000Z-200503T2345Z/
Overton TN-Pickett TN-Clay TN-Fentress TN-
616 PM CDT Sun May 3 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR EASTERN OVERTON...PICKETT...NORTHEASTERN CLAY AND FENTRESS
COUNTIES...

At 616 PM CDT, severe thunderstorms were located along a line
extending from 10 miles west of Byrdstown to near Livingston to 10
miles north of Monterey, moving east at 50 mph.

HAZARD...70 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Jamestown, Byrdstown, Allardt, Grimsley, Wolf River Dock, Clarkrange,
Crawford, Huntersville, Pall Mall, Pickett State Park and Static.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3637 8470 3638 8472 3635 8473 3633 8477
      3630 8480 3628 8488 3624 8488 3621 8491
      3616 8491 3615 8500 3617 8503 3615 8505
      3614 8511 3615 8521 3617 8525 3637 8528
      3662 8539 3663 8516 3660 8478 3640 8466
TIME...MOT...LOC 2316Z 256DEG 42KT 3659 8532 3644 8525 3629 8522 

HAIL...0.75IN
WIND...70MPH
 
$$

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, 3 hours 26 minutes earlier.

Area forecast discussion, May 3, 2:17 PM CDT, 3 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, 12 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, 4:55 PM CDT, 48 minutes before

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

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

0447 PM     TSTM WND GST     NASHVILLE               36.17N  86.78W
05/03/2020  M62 MPH          DAVIDSON           TN   ASOS

&&

EVENT NUMBER OHX2000342

21

Local storm report, May 3, 4:58 PM CDT, 45 minutes before

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

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

0441 PM     TSTM WND DMG     COLUMBIA                35.62N  87.05W
05/03/2020                   MAURY              TN   TRAINED SPOTTER

            LARGE TREE FELL ON A HOUSE ON MOCKINGBIRD LANE.

&&

EVENT NUMBER OHX2000343

21

Local storm report, May 3, 5:01 PM CDT, 42 minutes before

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

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

0444 PM     TSTM WND GST     2 NW NASHBORO VILLAGE   36.12N  86.68W
05/03/2020  M71 MPH          DAVIDSON           TN   ASOS

            NASHVILLE AIRPORT ASOS MEASURED A WIND GUST OF 62 KNOTS
            / 71 MPH

0451 PM     TSTM WND GST     2 NNE SMYRNA            36.01N  86.50W
05/03/2020  M61 MPH          RUTHERFORD         TN   ASOS

            SMYRNA AIRPORT ASOS MEASURED A WIND GUST OF 53 KNOTS /
            61 MPH

&&

EVENT NUMBER OHX2000344
EVENT NUMBER OHX2000345

SHAMBURGER

Local storm report, May 3, 5:04 PM CDT, 39 minutes before

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

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

0500 PM     TSTM WND DMG     LAWRENCEBURG            35.25N  87.34W
05/03/2020                   LAWRENCE           TN   EMERGENCY MNGR

            WIDESPREAD WIND DAMAGE....TREES DOWN AND S BARN
            DAMAGED.

&&

EVENT NUMBER OHX2000346

21

Local storm report, May 3, 5:07 PM CDT, 36 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE NASHVILLE TN
507 PM CDT SUN MAY 03 2020

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

0500 PM     TSTM WND DMG     LAWRENCEBURG            35.25N  87.34W
05/03/2020                   LAWRENCE           TN   EMERGENCY MNGR

            WIDESPREAD WIND DAMAGE....TREES DOWN AND A BARN
            DAMAGED.

&&

CORRECTED FATALITIES...INJURIES...REMARKS

EVENT NUMBER OHX2000346

21

Local storm report, May 3, 5:15 PM CDT, 28 minutes before

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

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

0504 PM     TSTM WND GST     1 N LEBANON             36.22N  86.32W
05/03/2020  M70 MPH          WILSON             TN   TRAINED SPOTTER

            TREES DOWN.

&&

EVENT NUMBER OHX2000347

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, 4:43 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Macon, Robertson, Sumner, Trousdale, Wilson	47 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, 5:44 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.