Alert archive / Tennessee / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 31, NWS Nashville, TN

February 5, 20204 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Feb 5, 2020, 8:11 PM CST for 4 counties in Tennessee. It was in force for 34 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: Feb 5, 2020, 8:11 PM CST (02:11 UTC)
Expired: Feb 5, 2020, 8:45 PM CST
In force: 34 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Cumberland County, TN, Fentress County, TN, Overton County, TN, Putnam County, TN

The radar

The Nashville radar (KOHX), 139 km from the middle of the area, began a volume at 02:10 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
Feb 5, 8:13 PM CST	TSTM WND DMG	4 Nnw Pleasant Hill, TN	TREES DOWN ON COW PEN RD IN MAYLAND
Feb 5, 8:14 PM CST	TSTM WND DMG	3 Ne Baker Crossroads, TN	TREE FELL ON HOUSE ON CRESTON RD

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 2 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 00:00Z, 2.2 hours before the alert went out and 141 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: 47 J/kg
Mixed-layer CIN: -159 J/kg
Mixed-layer LCL: 481 m above ground
0-6 km bulk shear: 76 kt
0-1 km storm-relative helicity: 189 m²/s²
0-3 km storm-relative helicity: 207 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

As transmitted.

215 
WUUS54 KOHX 060211
SVROHX
TNC035-049-133-141-060245-
/O.NEW.KOHX.SV.W.0031.200206T0211Z-200206T0245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
811 PM CST Wed Feb 5 2020

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Southeastern Overton County in Middle Tennessee...
  Cumberland County in Middle Tennessee...
  Southeastern Putnam County in Middle Tennessee...
  Southern Fentress County in Middle Tennessee...

* Until 845 PM CST.

* At 811 PM CST, a severe thunderstorm was located 10 miles west of
  Crossville, moving northeast at 60 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Crossville, Fairfield Glade, Monterey, Crab Orchard, Pleasant Hill,
  Grimsley, Lake Tansi, Cumberland Mountain State Park, Slate
  Springs, Indian Rock Lake and Clarkrange.

This includes Interstate 40 between mile markers 295 and 340.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3583 8477 3576 8492 3575 8503 3577 8525
      3579 8527 3582 8524 3591 8521 3592 8525
      3598 8526 3599 8531 3603 8531 3604 8534
      3618 8538 3638 8469 3630 8480 3629 8487
      3621 8491 3615 8491 3600 8472 3591 8468
TIME...MOT...LOC 0211Z 246DEG 50KT 3596 8523 

TORNADO...POSSIBLE
HAIL...<.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 Feb 5, 7:30 PM CST, 41 minutes earlier.

Area forecast discussion, Feb 5, 7:30 PM CST, 41 minutes before

Area Forecast Discussion
National Weather Service Nashville TN
730 PM CST Wed Feb 5 2020

.UPDATE...
FOR MESOSCALE DISCUSSION...

&&

.MESOSCALE DISCUSSION...

Main line of storms extends from Auburntown to Manchester. Looking
at a comparison of 23z and 00z instability parameters along and in
advance of that aforementioned line, we see a decrease in
instability levels. Helicity values, and surface capes are slowly
decreasing. Showalter are slowly increasing. LAL shows a slow
decrease in frequency and coverage as well.

The main sfc low is now over central MS. The event looks as though
it will unfold toward more of a flood threat across our Plateau.
As the sfc low moves across the area later tonight, rainfall in
our east may intensify once again. The flood watch still looks
good at this point. As for the tor watch, we will continue to
slowly clear the counties from west to east across our far south.

&&

.PREV DISCUSSION.../ISSUED /
FXUS64 KOHX 052349
AFDOHX

Area Forecast Discussion
National Weather Service Nashville TN
549 PM CST Wed Feb 5 2020

UPDATE...
FOR MESOSCALE DISCUSSION...

&&

.AVIATION...
00Z TAF DISCUSSION.

Stationary frontal boundary currently draped from sw-ne across the
mid state. Latest sfc analysis places a surface low near Tupelo
MS. This feature will ride northeastward overnight and bring an
increasing threat of heavy rainfall. Additionally, thunderstorm
activity will also be possible along and to the southeast of the
sfc low track. Rainfall will be heavy at times across southern
middle TN and the central and southern Plateau. Therefore, the CSV
area could experience some tstm activity with the potential for
higher wind gusts.

Further northwest across the remaining taf sites, these areas will
be to the northwest of the low track. Thus, tstm activity is less
likely. However, some heavier rainfall will still be possible for
the BNA and MQY areas.

Otw, look for cloudiness and shower activity to persist through
the day on Thursday. Beyond the 24 hr taf period, look for the
potential for some snowfall on Thursday night.

&&

.PRELIMINARY POINT TEMPS/POPS...
Nashville      46  48  33  41  34 /  90  40  40  10  20
Clarksville    40  42  31  40  32 /  80  30  40  10  20
Crossville     57  60  31  37  28 / 100  80  60  20  20
Columbia       47  49  32  43  34 /  90  50  40  10  20
Lawrenceburg   50  50  33  43  34 /  90  70  40  10  20
Waverly        41  43  30  42  33 /  90  30  40  10  20

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
Flood Watch through Thursday morning for Bedford-Cannon-Clay-
Coffee-Cumberland-Davidson-De Kalb-Fentress-Giles-Grundy-Jackson-
Lawrence-Lewis-Macon-Marshall-Maury-Overton-Pickett-Putnam-
Robertson-Rutherford-Smith-Sumner-Trousdale-Van Buren-Warren-
Wayne-White-Williamson-Wilson.

&&

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

Hazardous weather outlook, Feb 5, 10:54 AM CST, 9 hours 17 minutes before

Hazardous Weather Outlook
National Weather Service Nashville TN
1054 AM CST Wed Feb 5 2020

TNZ005>011-023>034-056>066-075-077>080-093>095-061700-
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-
1054 AM CST Wed Feb 5 2020

This Hazardous Weather Outlook is for portions of Middle
Tennessee.

.DAY ONE...This Afternoon and Tonight.

A Flood Watch is in effect for portions of Middle Tennessee
through Noon Thursday. Moderate to heavy rain will continue this
afternoon into tomorrow morning, with an additional 1 to 3 inches
of rain expected. Localized flooding of roads, low lying areas,
and rivers and streams is possible.

Strong to severe storms will be possible between 2 and 9 pm CST
for areas of Middle TN south of I-40. A few storms may contain
winds of 50-60 mph.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Light rain may mix with light snow Thursday night into early
Friday morning. A dusting of snow is possible on elevated surfaces
in the Upper Cumberland and on the Cumberland Plateau, but no
accumulation is expected elsewhere.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is requested for this afternoon and evening
across southern and eastern Middle Tennessee due to the potential
for flooding and a few severe storms.

27

In the hours before

Special weather statement, Feb 5, 7:20 PM CST, 51 minutes before

Special Weather Statement
National Weather Service Nashville TN
720 PM CST Wed Feb 5 2020

TNZ032-063>065-078-080-060200-
Putnam TN-Cannon TN-Van Buren TN-De Kalb TN-Warren TN-White TN-
720 PM CST Wed Feb 5 2020

...SIGNIFICANT WEATHER ADVISORY FOR DE KALB...VAN BUREN...NORTHERN
WARREN...WHITE...SOUTHERN PUTNAM AND CANNON COUNTIES UNTIL 800 PM
CST...

At 719 PM CST, Doppler radar was tracking a strong thunderstorm 9
miles southeast of Woodbury, moving east at 65 mph.

Wind gusts up to 50 mph will be possible with this storm.

Locations impacted include...
Cookeville, McMinnville, Sparta, Smithville, Woodbury, Spencer,
Monterey, Doyle, Auburntown, Centertown, Hamptons Crossroads, Bakers
Crossroads, Virgin Falls State Natural Area, Burgess Falls State
Park, Rock Island State Park and Fall Creek Falls State Park.

This includes Interstate 40 between mile markers 294 and 301.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

A Tornado Watch remains in effect until 1100 PM CST for Middle
Tennessee.

LAT...LON 3580 8525 3579 8527 3576 8527 3572 8527
      3567 8532 3565 8598 3566 8599 3565 8600
      3565 8606 3595 8615 3597 8608 3596 8602
      3598 8602 3618 8527 3603 8525 3596 8526
      3591 8524 3584 8523
TIME...MOT...LOC 0119Z 258DEG 58KT 3573 8595

Barnwell

Local storm report, Feb 5, 7:38 PM CST, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
738 PM CST WED FEB 05 2020

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

0737 PM     FLASH FLOOD      JAMESTOWN               36.43N  84.94W
02/05/2020                   FENTRESS           TN   LAW ENFORCEMENT

            NUMEROUS ROAD CLOSURES ACROSS THE COUNTY.

&&

EVENT NUMBER OHX2000058

21

Local storm report, Feb 5, 7:42 PM CST, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
742 PM CST WED FEB 05 2020

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

0741 PM     FLASH FLOOD      5 W LIVINGSTON          36.39N  85.42W
02/05/2020                   OVERTON            TN   LAW ENFORCEMENT

            NUMEROUS ROAD CLOSURES ACROSS MAINLY THE WESTERN HALF
            OF THE COUNTY.

&&

EVENT NUMBER OHX2000059

21

Local storm report, Feb 5, 8:07 PM CST, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
807 PM CST WED FEB 05 2020

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

0805 PM     FLASH FLOOD      LAWRENCEBURG            35.25N  87.34W
02/05/2020                   LAWRENCE           TN   EMERGENCY MNGR

            WATER RESCUE ON JAP RD. UNCONFIRMED REPORT OF PEOPLE
            TRAPPED IN A VEHICHLE.

&&

EVENT NUMBER OHX2000060

21

Local storm report, Feb 5, 8:09 PM CST, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
809 PM CST WED FEB 05 2020

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

0730 PM     FLASH FLOOD      6 SW LIVINGSTON         36.33N  85.40W
02/05/2020                   OVERTON            TN   FIRE DEPT/RESCUE

            MAN WAS RESCUED ON HARDYS CHAPEL RD AFTER DRIVING OFF
            ROAD INTO WATER.

&&

EVENT NUMBER OHX2000061

SH

Local storm report, Feb 5, 8:11 PM CST, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
811 PM CST WED FEB 05 2020

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

0809 PM     FLASH FLOOD      3 SW MURFREESBORO       35.82N  86.43W
02/05/2020                   RUTHERFORD         TN   TRAINED SPOTTER

            WATER RESCUE...BOTTOM FLOOR OF A HOME IS FLOODED ALONG
            JACKSON RIDGE RD IN ROCKVALE COMMUNITY. PEOPLE TRAPPED
            ON 2ND FLOOR.

&&

EVENT NUMBER OHX2000062

21

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 5, 6:07 PM CST	Areal Flood Advisory	OHX	Bedford, Davidson, Marshall, Maury, Rutherford, Williamson and 1 more	6 hr
Feb 5, 6:26 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Giles, Marshall	34 min
Feb 5, 6:32 PM CST	Flash Flood Warning	OHX	Cumberland, DeKalb, Fentress, Jackson, Overton, Pickett and 2 more	6 hr
Feb 5, 6:34 PM CST	Tornado Warning	OHX	Bedford, Marshall	26 min
Feb 5, 6:43 PM CST	Special Weather Statement	OHX	Bedford, Cannon, Rutherford	47 min
Feb 5, 6:48 PM CST	Tornado Warning	OHX	Bedford, Coffee, Rutherford	15 min
Feb 5, 6:49 PM CST	Areal Flood Advisory	OHX	Bedford, Cannon, Coffee, DeKalb, Grundy, Rutherford and 4 more	3 hr
Feb 5, 6:59 PM CST	River Flood Advisory	OHX	Davidson	19 days
Feb 5, 7:01 PM CST	Special Weather Statement	OHX	Coffee, Grundy, Warren	44 min
Feb 5, 7:04 PM CST	Areal Flood Advisory	OHX	Clay, DeKalb, Jackson, Overton, Pickett, Putnam and 1 more	116 min
Feb 5, 7:20 PM CST	Special Weather Statement	OHX	Cannon, DeKalb, Van Buren, Warren, White	40 min
Feb 5, 7:32 PM CST	Severe Thunderstorm Warning	OHX	Cumberland, DeKalb, Putnam, Van Buren, Warren, White	43 min
Feb 5, 7:34 PM CST	Flash Flood Warning	OHX	Cumberland, DeKalb, Van Buren, Warren, White	4 hr
Feb 5, 7:37 PM CST	Flash Flood Warning	OHX	Clay, DeKalb, Jackson, Macon, Overton, Pickett and 2 more	4 hr
Feb 5, 8:01 PM CST	Flash Flood Warning	OHX	Cannon, DeKalb, Rutherford, Smith, Warren, Wilson	3 hr
Feb 5, 8:15 PM CST	Areal Flood Advisory	OHX	Giles, Lawrence, Lewis, Marshall, Maury, Perry and 1 more	3 hr
Feb 5, 8:25 PM CST	River Flood Advisory	OHX	Grundy	25 hr
Feb 5, 8:36 PM CST	River Flood Advisory	OHX	Davidson	4 hr
Feb 5, 9:45 PM CST	Areal Flood Advisory	OHX	Bedford, Cannon, Coffee, Grundy, Rutherford, Van Buren and 1 more	3 hr
Feb 5, 9:56 PM CST	Flash Flood Warning	OHX	Giles, Lawrence, Lewis, Marshall, Maury, Wayne	3 hr
Feb 5, 9:59 PM CST	River Flood Advisory	OHX	Bedford	13 hr
Feb 5, 11:34 PM CST	River Flood Advisory	OHX	Lawrence	5 hr
Feb 6, 1:25 AM CST	Areal Flood Advisory	OHX	Bedford, Cannon, Coffee, Giles, Grundy, Marshall and 1 more	3 hr
Feb 6, 1:29 AM CST	Areal Flood Advisory	OHX	Cannon, Cumberland, DeKalb, Fentress, Overton, Pickett and 4 more	3 hr
Feb 6, 1:39 AM CST	River Flood Advisory	OHX	Giles	13 hr
Feb 6, 1:51 AM CST	River Flood Advisory	OHX	Sumner, Trousdale, Wilson	58 hr
Feb 6, 2:44 AM CST	River Flood Advisory	OHX	Giles	13 hr
Feb 6, 4:26 AM CST	Areal Flood Advisory	OHX	Bedford, Coffee, Giles, Grundy, Lawrence, Marshall and 2 more	9 hr
Feb 6, 4:30 AM CST	Areal Flood Advisory	OHX	Cannon, Cumberland, DeKalb, Fentress, Overton, Pickett and 5 more	9 hr
Feb 6, 5:00 AM CST	River Flood Warning	OHX	Lawrence	10 hr
Feb 6, 5:45 AM CST	River Flood Advisory	OHX	Maury	8 hr
Feb 6, 6:01 AM CST	River Flood Advisory	OHX	Decatur, Hardin, Perry, Wayne	10 hr
Feb 6, 7:15 AM CST	River Flood Advisory	OHX	Hickman	7 hr
Feb 6, 8:53 AM CST	River Flood Advisory	OHX	Davidson	15 days
Feb 6, 8:56 AM CST	River Flood Advisory	OHX	Bedford, Marshall	19 hr
Feb 6, 10:31 AM CST	River Flood Advisory	OHX	Williamson	18 hr
Feb 6, 10:37 AM CST	River Flood Advisory	OHX	Perry, Wayne	18 hr
Feb 6, 10:54 AM CST	River Flood Advisory	OHX	Marshall	12 hr
Feb 6, 11:24 AM CST	River Flood Advisory	OHX	Davidson, Williamson	28 hr
Feb 6, 1:28 PM CST	River Flood Advisory	OHX	Williamson	22 hr
Feb 6, 1:29 PM CST	Areal Flood Advisory	OHX	Cannon, Cumberland, DeKalb, Fentress, Overton, Pickett and 5 more	3 hr
Feb 6, 1:38 PM CST	River Flood Warning	OHX	Maury	42 hr
Feb 6, 1:43 PM CST	River Flood Warning	OHX	Hickman	3 days
Feb 6, 2:17 PM CST	River Flood Warning	OHX	Giles	10 hr
Feb 6, 2:25 PM CST	Winter Weather Advisory	OHX	Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland and 24 more	22 hr
Feb 6, 3:01 PM CST	River Flood Advisory	OHX	Lawrence	6 hr
Feb 6, 3:35 PM CST	River Flood Warning	OHX	Giles	44 hr
Feb 6, 3:45 PM CST	River Flood Advisory	OHX	Davidson	52 hr
Feb 6, 3:49 PM CST	River Flood Warning	OHX	Perry	40 hr
Feb 6, 3:58 PM CST	River Flood Warning	OHX	Decatur, Hardin, Perry, Wayne	20 days

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.