Alert archive / Tennessee / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 149, NWS Nashville, TN

July 21, 20184 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jul 21, 2018, 5:31 AM CDT for 4 counties in Tennessee. It was in force for 29 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
Jul 21, 2018, 5:31 AM CDT (10:31 UTC)
Expired
Jul 21, 2018, 6:00 AM CDT
In force
29 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

Counties Cumberland County, TN, Van Buren County, TN, Warren County, TN, White County, TN

The radar

The Northeast Alabama radar (KHTX), 111 km from the middle of the area, began a volume at 10:35 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

TimeReportWhereRemark
Jul 21, 5:43 AM CDTHAIL 0.758 Se Spencer, TNFACEBOOK REPORT OF DIME SIZE HAIL AT FALL CREEK FALLS STATE PARK
Jul 21, 5:43 AM CDTHAIL 18 Se Spencer, TNQUARTER SIZE HAIL REPORTED AT FALL CREEK FALLS CAMPGROUND

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 one storm report to this severe thunderstorm warning; the first came 12 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.

IssuedProductOfficeLasted
Jul 21, 2:00 AM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 10.5 hours before the alert went out and 121 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-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2018-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3305 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2018-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
3305 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1217 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
169 m²/s²
Significant tornado parameter
2.2
Supercell composite
11.6

Open this sounding in Storm Lab

The text

As transmitted.

055 
WUUS54 KOHX 211031
SVROHX
TNC035-175-177-185-211100-
/O.NEW.KOHX.SV.W.0149.180721T1031Z-180721T1100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
531 AM CDT SAT JUL 21 2018

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Southwestern Cumberland County in Middle Tennessee...
  Van Buren County in Middle Tennessee...
  Northeastern Warren County in Middle Tennessee...
  Southern White County in Middle Tennessee...

* Until 600 AM CDT.

* At 530 AM CDT, a severe thunderstorm was located near Spencer,
  moving southeast at 50 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated. At 520 AM CDT, golf ball size hail was 
           reported with this storm in De Kalb County.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Sparta, Spencer, Doyle and Fall Creek Falls State Park. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3576 8526 3575 8526 3573 8527 3572 8527
      3569 8529 3557 8542 3555 8548 3577 8568
      3593 8549 3577 8514
TIME...MOT...LOC 1030Z 312DEG 44KT 3576 8553 

HAIL...1.50IN
WIND...60MPH
 
$$

Shamburger
2 follow-up statements
959 
WWUS54 KOHX 211040
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
540 AM CDT SAT JUL 21 2018

TNC035-177-185-211050-
/O.CAN.KOHX.SV.W.0149.000000T0000Z-180721T1100Z/
Cumberland TN-Warren TN-White TN-
540 AM CDT SAT JUL 21 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN CUMBERLAND...
NORTHEASTERN WARREN AND SOUTHERN WHITE COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3570 8528 3569 8529 3557 8542 3555 8548
      3569 8560 3582 8546 3581 8539 3580 8537
      3580 8536 3576 8527
TIME...MOT...LOC 1040Z 306DEG 44KT 3569 8542 

$$

TNC175-211100-
/O.CON.KOHX.SV.W.0149.000000T0000Z-180721T1100Z/
Van Buren TN-
540 AM CDT SAT JUL 21 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 AM CDT
FOR VAN BUREN COUNTY...

At 540 AM CDT, a severe thunderstorm was located near Spencer, moving
southeast at 50 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Spencer and Fall Creek Falls State Park. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3570 8528 3569 8529 3557 8542 3555 8548
      3569 8560 3582 8546 3581 8539 3580 8537
      3580 8536 3576 8527
TIME...MOT...LOC 1040Z 306DEG 44KT 3569 8542 

HAIL...1.50IN
WIND...60MPH
 
$$

Shamburger
811 
WWUS54 KOHX 211052
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
552 AM CDT SAT JUL 21 2018

TNC175-211102-
/O.EXP.KOHX.SV.W.0149.000000T0000Z-180721T1100Z/
Van Buren TN-
552 AM CDT SAT JUL 21 2018

...THE SEVERE THUNDERSTORM WARNING FOR VAN BUREN COUNTY WILL EXPIRE
AT 600 AM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Nashville.

LAT...LON 3570 8528 3569 8529 3557 8542 3555 8548
      3569 8560 3582 8546 3581 8539 3580 8537
      3580 8536 3576 8527
TIME...MOT...LOC 1052Z 312DEG 44KT 3560 8530 

$$

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 Jul 21, 2:46 AM CDT, 2 hours 45 minutes earlier.

Area forecast discussion, Jul 21, 2:46 AM CDT, 2 hours 45 minutes before
Area Forecast Discussion
National Weather Service Nashville TN
246 AM CDT Sat Jul 21 2018

.DISCUSSION...

CAMs continue to have difficulty nailing down ongoing convection
overnight, but do show very little if any development west of
I-65. Would not be surprised though if the outflow from current
convection kicks off a few showers and storms as the environment
to the west still has over 3000 J/kg of MUCAPE and 50 knots of
0-6km shear. Ongoing convection will continue to ride the outflow
southward for areas east of I-65, and damaging winds/hail remain
the leading threats. Flooding will also be a concern as many areas
have seen training of heavy rainfall, so any additional rainfall
for those areas may cause localized flooding. For now, severe
tstorm watch is in effect until 9 am, but storms will likely be
out of the area well before then.

As the upper low over the southern Great Lakes region moves
southward today, chances for more showers and thunderstorms will
mainly impact areas along and east of I-65. Temperatures will be a
bit cooler today as the cold front moves through the area, and
will be even cooler on Sunday as the upper low is just off to the
east and helps bring in colder air aloft with strong upper
northerlies. Additional chances for showers and thunderstorms will
move in during the day Sunday with the upper low, and again
chances will be better east of I-65.

The upper low will develop into a deep trough during the early
part of the work week, which will keep chances for showers and
thunderstorms in the forecast mainly for afternoon hours. By
Thursday, another broad Great Lakes trough will move eastward, and
our stagnant trough will phase in with it. Long term models are
pretty consistent and similar with their solutions, which keeps
precip chances in through the weekend, so did not change too much
in the long term. At least for the first half of the week, with
the upper low continuing northerlies aloft with cooler air moving
in, highs will be in the mid to upper 80s. After the upper troughs
begin to phase on Thursday and Friday, highs may again creep into
the low 90s.

&&

.AVIATION...
06Z TAF DISCUSSION.

CKV/BNA/MQY/CSV...It looks like CSV will have the best chance of
experiencing a round of shwrs/tstms, and will break out a tempo
group to address this possibility. Will mention MVFR ceilings
and IFR vsbys with this TEMPO group. Otherwise, even with clr
skies and not much of activity noted to our northwest, still
can not rule out at least in the vcnty shwrs/tstms at the other
terminals at least thru 21/10Z. It still appears that another
round of shwrs/tstms could develop 21/18Z-22/02Z. However,
uncertainty still exist for actual location development at
terminals, but can not rule out in vcnty, and thus mentioned.

&&

.PRELIMINARY POINT TEMPS/POPS...
Nashville      89  71  85  70  85 /  20  20  50  30  50
Clarksville    87  69  83  68  84 /  20  10  40  20  20
Crossville     81  65  75  64  77 /  50  30  70  40  60
Columbia       88  69  84  68  83 /  20  10  40  30  40
Lawrenceburg   88  68  85  67  83 /  20  10  30  20  40
Waverly        89  69  86  68  84 /  10   0  30  20  30

&&

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

&&

DISCUSSION......Barnwell
AVIATION........31
Hazardous weather outlook, Jul 21, 5:17 AM CDT, 14 minutes before
Hazardous Weather Outlook
National Weather Service Nashville TN
517 AM CDT Sat Jul 21 2018

TNZ005>011-023>034-056>066-075-077>080-093>095-221030-
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-
517 AM CDT Sat Jul 21 2018

This Hazardous Weather Outlook is for portions of Middle
Tennessee.

.DAY ONE...Today and Tonight

A marginal risk of severe thunderstorms is expected
mainly Saturday afternoon into Saturday evening for
locations along and south of a Hohenwald to Columbia
to Celina line. With any strong to severe thunderstorms
that do develop, strong to damaging winds and hail will be
possible.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and evening.

In the hours before

Local storm report, Jul 21, 3:42 AM CDT, 1 hour 49 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NASHVILLE TN
342 AM CDT SAT JUL 21 2018

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

0730 PM     HAIL             4 NE CELINA             36.59N  85.45W
07/20/2018  E1.00 INCH       CLAY               TN   EMERGENCY MNGR

            ESTIMATED 1 INCH HAIL REPORTED IN PEA RIDGE

0744 PM     TSTM WND DMG     7 WNW LIVINGSTON        36.42N  85.44W
07/20/2018                   OVERTON            TN   EMERGENCY MNGR

            TREE REPORTED DOWN NEAR 170 STANDING STONE PARK HIGHWAY
            NEAR HILLHAM. POWER OUTAGES REPORTED AS WELL.

0749 PM     TSTM WND DMG     5 WSW GAINESBORO        36.33N  85.73W
07/20/2018                   JACKSON            TN   911 CALL CENTER

            SEVERAL TREES REPORTED DOWN IN THE FLYNNS LICK AREA.

0749 PM     HAIL             5 WSW GAINESBORO        36.33N  85.73W
07/20/2018  E0.75 INCH       JACKSON            TN   911 CALL CENTER

            DIME SIZE HAIL REPORTED IN THE FLYNNS LICK AREA.

0807 PM     HAIL             CELINA                  36.55N  85.50W
07/20/2018  E1.00 INCH       CLAY               TN   EMERGENCY MNGR

            QUARTER SIZE HAIL REPORTED IN CELINA.

0808 PM     TSTM WND DMG     CELINA                  36.55N  85.50W
07/20/2018                   CLAY               TN   EMERGENCY MNGR

            SEVERAL TREES DOWN ON MOSS ARCOT ROAD.

0813 PM     HAIL             2 SW CUMMINS FALLS STAT 36.23N  85.60W
07/20/2018  E0.75 INCH       JACKSON            TN   EMERGENCY MNGR

            NICKEL TO DIME SIZED HAIL REPORTED OFF GAINESBORO GRADE
            NEAR THE JACKSON/PUTNAM COUNTY LINE.

0816 PM     TSTM WND DMG     JAMESTOWN               36.43N  84.94W
07/20/2018                   FENTRESS           TN   EMERGENCY MNGR

            MINOR ROOF DAMAGE TO A HOUSE IN JAMESTOWN OFF OF HWY 52
            EAST. TREE DOWN ON STEVENS ROAD.

0820 PM     HAIL             2 SSW CUMMINS FALLS STA 36.22N  85.57W
07/20/2018  E1.00 INCH       PUTNAM             TN   EMERGENCY MNGR

            QUARTER SIZE HAIL REPORTED NEAR CUMBY ROAD AND
            GAINESBORO GRADE.

0823 PM     HAIL             1 NE COOKEVILLE         36.17N  85.49W
07/20/2018  M0.88 INCH       PUTNAM             TN   TRAINED SPOTTER

0825 PM     HAIL             ALGOOD                  36.20N  85.45W
07/20/2018  E1.25 INCH       PUTNAM             TN   BROADCAST MEDIA

0829 PM     HAIL             COOKEVILLE              36.16N  85.51W
07/20/2018  E0.88 INCH       PUTNAM             TN   MEDIA

            REPORT OF NICKEL SIZE HAIL IN COOKEVILLE.

0831 PM     HAIL             COOKEVILLE              36.16N  85.51W
07/20/2018  E1.25 INCH       PUTNAM             TN   SOCIAL MEDIA

            TSPOTTER REPORT OF HAIL IN COOKEVILLE. LARGER THAN A
            QUARTER IN COMPARISON.

0833 PM     TSTM WND DMG     1 SSE CUMMINS FALLS STA 36.24N  85.56W
07/20/2018                   JACKSON            TN   911 CALL CENTER

            TREES DOWN WITH POWER OUTAGES ON CUMMINS MILL RD.

0834 PM     HAIL             LIVINGSTON              36.39N  85.33W
07/20/2018  E1.00 INCH       OVERTON            TN   NWS EMPLOYEE

0835 PM     TSTM WND DMG     5 N ALGOOD              36.26N  85.45W
07/20/2018                   PUTNAM             TN   EMERGENCY MNGR

            TREES DOWN NEAR ZEB WARREN ROAD AND BEN MASON ROAD.

0835 PM     HAIL             1 E COOKEVILLE          36.16N  85.48W
07/20/2018  M1.50 INCH       PUTNAM             TN   TRAINED SPOTTER

            REPORT OF 1.5 INCH HAIL IN COOKEVILLE.

0922 PM     HAIL             3 S COOKEVILLE          36.11N  85.51W
07/20/2018  E1.00 INCH       PUTNAM             TN   MEDIA

            REPORT OF QUARTER SIZE HAIL SOUTH OF COOKEVILLE IN
            PUTNAM COUNTY.

0927 PM     HAIL             PLEASANT HILL           35.98N  85.20W
07/20/2018  E0.75 INCH       CUMBERLAND         TN   EMERGENCY MNGR

            DIME SIZE HAIL REPORTED IN PLEASANT HILL.

0951 PM     TSTM WND DMG     7 SSW LAKE TANSI        35.78N  85.10W
07/20/2018                   CUMBERLAND         TN   EMERGENCY MNGR

            REPORTS OF TREES DOWN AND A TRANSFORMER DOWN ON
            VANDEVER ROAD IN CUMBERLAND COUNTY

1157 PM     TSTM WND DMG     GAINESBORO              36.36N  85.65W
07/20/2018                   JACKSON            TN   911 CALL CENTER

            LARGE TREE BLOCKING HIGHWAY 56 SOUTH LEAVING GAINSBORO
            GOING TOWARD BAXTER AT HALE HOLLOW.

1259 AM     TSTM WND DMG     COOKEVILLE              36.16N  85.50W
07/21/2018                   PUTNAM             TN   BROADCAST MEDIA

            SEVERAL TREES REPORTEDLY BLOWN DOWN IN COOKEVILLE

0125 AM     HAIL             CARTHAGE                36.26N  85.94W
07/21/2018  E0.88 INCH       SMITH              TN   TRAINED SPOTTER

            NICKEL SIZE HAIL WAS REPORTED IN CARTHAGE.

0132 AM     LIGHTNING        CROSSVILLE              35.95N  85.04W
07/21/2018                   CUMBERLAND         TN   EMERGENCY MNGR

            LIGHTNING STRUCK A TRANSFOMER AND CAUGHT IT ON FIRE ON
            MAIN STREET.

0138 AM     TSTM WND DMG     3 W TUCKERS CROSSROADS  36.19N  86.22W
07/21/2018                   WILSON             TN   EMERGENCY MNGR

            TREE ACROSS ROADWAY AT 4033 BLUEBIRD ROAD

0140 AM     TSTM WND DMG     LEBANON                 36.21N  86.32W
07/21/2018                   WILSON             TN   EMERGENCY MNGR

            TREE DOWN IN THE ROADWAY AT 1200 AFRICA ROAD AND POWER
            LINES DOWN ON TENNESSEE BLVD AT BADDOUR PARKWAY

0140 AM     TSTM WND DMG     LEBANON                 36.21N  86.32W
07/21/2018                   WILSON             TN   EMERGENCY MNGR

            TREE REPORTED DOWN BLOCKING THE RIGHT LANE OF I-40
            WESTBOUND

0145 AM     TSTM WND DMG     3 SW LINWOOD            36.13N  86.21W
07/21/2018                   WILSON             TN   EMERGENCY MNGR

            LARGE TREE ACROSS ROADWAY ON SPARTA PIKE AT YOUNG ROAD

0255 AM     TSTM WND DMG     7 ESE MANCHESTER        35.41N  85.97W
07/21/2018                   COFFEE             TN   EMERGENCY MNGR

            TREES REPORTED DOWN ACROSS EASTERN COFFEE COUNTY

&&

EVENT NUMBER OHX1800289 OHX1800292 OHX1800290 OHX1800291 OHX1800295
OHX1800302 OHX1800294 OHX1800305 OHX1800296 OHX1800297 OHX1800313
OHX1800298 OHX1800299 OHX1800301 OHX1800300 OHX1800303 OHX1800304
OHX1800307 OHX1800306 OHX1800308 OHX1800309 OHX1800315 OHX1800310
OHX1800311 OHX1800316 OHX1800312 OHX1800314 OHX1800317 OHX1800318

31
Local storm report, Jul 21, 3:52 AM CDT, 1 hour 39 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
352 AM CDT SAT JUL 21 2018

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

0825 PM     TSTM WND DMG     LIVINGSTON              36.39N  85.33W
07/20/2018                   OVERTON            TN   EMERGENCY MNGR

            NUMEROUS TREES DOWN IN LIVINGSTON INCLUDING ON PRESTON
            STREET...WEST MAIN STREET...MONTEREY HIGHWAY...1972
            VILLA DRIVE...AND 900 NORTH CHURCH STREET. POWER LINES
            ALSO DOWN AT 605 HIGH STREET.

&&

EVENT NUMBER OHX1800319

SHAMBURGER
Local storm report, Jul 21, 4:03 AM CDT, 1 hour 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
403 AM CDT SAT JUL 21 2018

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

0732 PM     HAIL             BYRDSTOWN               36.57N  85.13W
07/20/2018  E1.00 INCH       PICKETT            TN   SOCIAL MEDIA

            FACEBOOK PHOTOS SHOWED DIME TO QUARTER SIZE HAIL IN
            BYRDSTOWN

0750 PM     HAIL             4 ESE BYRDSTOWN         36.56N  85.06W
07/20/2018  E1.00 INCH       PICKETT            TN   SOCIAL MEDIA

            FACEBOOK PHOTOS SHOWED QUARTER SIZE HAIL IN THE CEDAR
            GROVE AREA

0830 PM     TSTM WND DMG     7 N MONTEREY            36.24N  85.27W
07/20/2018                   OVERTON            TN   EMERGENCY MNGR

            TREES DOWN ON RUSHING SPRINGS ROAD

&&

EVENT NUMBER OHX1800320
EVENT NUMBER OHX1800321
EVENT NUMBER OHX1800322

SHAMBURGER
Local storm report, Jul 21, 4:06 AM CDT, 1 hour 25 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NASHVILLE TN
406 AM CDT SAT JUL 21 2018

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

0730 PM     HAIL             4 NE CELINA             36.59N  85.45W
07/20/2018  E1.00 INCH       CLAY               TN   EMERGENCY MNGR

            ESTIMATED 1 INCH HAIL REPORTED IN PEA RIDGE

0732 PM     HAIL             BYRDSTOWN               36.57N  85.13W
07/20/2018  E1.00 INCH       PICKETT            TN   SOCIAL MEDIA

            FACEBOOK PHOTOS SHOWED DIME TO QUARTER SIZE HAIL IN
            BYRDSTOWN

0744 PM     TSTM WND DMG     7 WNW LIVINGSTON        36.42N  85.44W
07/20/2018                   OVERTON            TN   EMERGENCY MNGR

            TREE REPORTED DOWN NEAR 170 STANDING STONE PARK HIGHWAY
            NEAR HILLHAM. POWER OUTAGES REPORTED AS WELL.

0749 PM     TSTM WND DMG     5 WSW GAINESBORO        36.33N  85.73W
07/20/2018                   JACKSON            TN   911 CALL CENTER

            SEVERAL TREES REPORTED DOWN IN THE FLYNNS LICK AREA.

0749 PM     HAIL             5 WSW GAINESBORO        36.33N  85.73W
07/20/2018  E0.75 INCH       JACKSON            TN   911 CALL CENTER

            DIME SIZE HAIL REPORTED IN THE FLYNNS LICK AREA.

0750 PM     HAIL             4 ESE BYRDSTOWN         36.56N  85.06W
07/20/2018  E1.00 INCH       PICKETT            TN   SOCIAL MEDIA

            FACEBOOK PHOTOS SHOWED QUARTER SIZE HAIL IN THE CEDAR
            GROVE AREA

0807 PM     HAIL             CELINA                  36.55N  85.50W
07/20/2018  E1.00 INCH       CLAY               TN   EMERGENCY MNGR

            QUARTER SIZE HAIL REPORTED IN CELINA.

0808 PM     TSTM WND DMG     CELINA                  36.55N  85.50W
07/20/2018                   CLAY               TN   EMERGENCY MNGR

            SEVERAL TREES DOWN ON MOSS ARCOT ROAD.

0813 PM     HAIL             2 SW CUMMINS FALLS STAT 36.23N  85.60W
07/20/2018  E0.75 INCH       JACKSON            TN   EMERGENCY MNGR

            NICKEL TO DIME SIZED HAIL REPORTED OFF GAINESBORO GRADE
            NEAR THE JACKSON/PUTNAM COUNTY LINE.

0816 PM     TSTM WND DMG     JAMESTOWN               36.43N  84.94W
07/20/2018                   FENTRESS           TN   EMERGENCY MNGR

            MINOR ROOF DAMAGE TO A HOUSE IN JAMESTOWN OFF OF HWY 52
            EAST. TREE DOWN ON STEVENS ROAD.

0820 PM     HAIL             2 SSW CUMMINS FALLS STA 36.22N  85.57W
07/20/2018  E1.00 INCH       PUTNAM             TN   EMERGENCY MNGR

            QUARTER SIZE HAIL REPORTED NEAR CUMBY ROAD AND
            GAINESBORO GRADE.

0823 PM     HAIL             1 NE COOKEVILLE         36.17N  85.49W
07/20/2018  M0.88 INCH       PUTNAM             TN   TRAINED SPOTTER

0825 PM     HAIL             ALGOOD                  36.20N  85.45W
07/20/2018  E1.25 INCH       PUTNAM             TN   BROADCAST MEDIA

0825 PM     TSTM WND DMG     LIVINGSTON              36.39N  85.33W
07/20/2018                   OVERTON            TN   EMERGENCY MNGR

            NUMEROUS TREES DOWN IN LIVINGSTON INCLUDING ON PRESTON
            STREET...WEST MAIN STREET...MONTEREY HIGHWAY...1972
            VILLA DRIVE...AND 900 NORTH CHURCH STREET. POWER LINES
            ALSO DOWN AT 605 HIGH STREET.

0829 PM     HAIL             COOKEVILLE              36.16N  85.51W
07/20/2018  E0.88 INCH       PUTNAM             TN   MEDIA

            REPORT OF NICKEL SIZE HAIL IN COOKEVILLE.

0830 PM     TSTM WND DMG     7 N MONTEREY            36.24N  85.27W
07/20/2018                   OVERTON            TN   EMERGENCY MNGR

            TREES DOWN ON RUSHING SPRINGS ROAD

0831 PM     HAIL             COOKEVILLE              36.16N  85.51W
07/20/2018  E1.25 INCH       PUTNAM             TN   SOCIAL MEDIA

            TSPOTTER REPORT OF HAIL IN COOKEVILLE. LARGER THAN A
            QUARTER IN COMPARISON.

0833 PM     TSTM WND DMG     1 SSE CUMMINS FALLS STA 36.24N  85.56W
07/20/2018                   JACKSON            TN   911 CALL CENTER

            TREES DOWN WITH POWER OUTAGES ON CUMMINS MILL RD.

0834 PM     HAIL             LIVINGSTON              36.39N  85.33W
07/20/2018  E1.00 INCH       OVERTON            TN   NWS EMPLOYEE

0835 PM     TSTM WND DMG     5 N ALGOOD              36.26N  85.45W
07/20/2018                   PUTNAM             TN   EMERGENCY MNGR

            TREES DOWN NEAR ZEB WARREN ROAD AND BEN MASON ROAD.

0835 PM     HAIL             1 E COOKEVILLE          36.16N  85.48W
07/20/2018  M1.50 INCH       PUTNAM             TN   TRAINED SPOTTER

            REPORT OF 1.5 INCH HAIL IN COOKEVILLE.

0922 PM     HAIL             3 S COOKEVILLE          36.11N  85.51W
07/20/2018  E1.00 INCH       PUTNAM             TN   MEDIA

            REPORT OF QUARTER SIZE HAIL SOUTH OF COOKEVILLE IN
            PUTNAM COUNTY.

0927 PM     HAIL             PLEASANT HILL           35.98N  85.20W
07/20/2018  E0.75 INCH       CUMBERLAND         TN   EMERGENCY MNGR

            DIME SIZE HAIL REPORTED IN PLEASANT HILL.

0951 PM     TSTM WND DMG     7 SSW LAKE TANSI        35.78N  85.10W
07/20/2018                   CUMBERLAND         TN   EMERGENCY MNGR

            REPORTS OF TREES DOWN AND A TRANSFORMER DOWN ON
            VANDEVER ROAD IN CUMBERLAND COUNTY

1157 PM     TSTM WND DMG     GAINESBORO              36.36N  85.65W
07/20/2018                   JACKSON            TN   911 CALL CENTER

            LARGE TREE BLOCKING HIGHWAY 56 SOUTH LEAVING GAINSBORO
            GOING TOWARD BAXTER AT HALE HOLLOW.

1259 AM     TSTM WND DMG     COOKEVILLE              36.16N  85.50W
07/21/2018                   PUTNAM             TN   BROADCAST MEDIA

            SEVERAL TREES REPORTEDLY BLOWN DOWN IN COOKEVILLE

0125 AM     HAIL             CARTHAGE                36.26N  85.94W
07/21/2018  E0.88 INCH       SMITH              TN   TRAINED SPOTTER

            NICKEL SIZE HAIL WAS REPORTED IN CARTHAGE.

0132 AM     LIGHTNING        CROSSVILLE              35.95N  85.04W
07/21/2018                   CUMBERLAND         TN   EMERGENCY MNGR

            LIGHTNING STRUCK A TRANSFOMER AND CAUGHT IT ON FIRE ON
            MAIN STREET.

0138 AM     TSTM WND DMG     3 W TUCKERS CROSSROADS  36.19N  86.22W
07/21/2018                   WILSON             TN   EMERGENCY MNGR

            TREE ACROSS ROADWAY AT 4033 BLUEBIRD ROAD

0140 AM     TSTM WND DMG     LEBANON                 36.21N  86.32W
07/21/2018                   WILSON             TN   EMERGENCY MNGR

            TREE DOWN IN THE ROADWAY AT 1200 AFRICA ROAD AND POWER
            LINES DOWN ON TENNESSEE BLVD AT BADDOUR PARKWAY

0140 AM     TSTM WND DMG     LEBANON                 36.21N  86.32W
07/21/2018                   WILSON             TN   EMERGENCY MNGR

            TREE REPORTED DOWN BLOCKING THE RIGHT LANE OF I-40
            WESTBOUND

0145 AM     TSTM WND DMG     3 SW LINWOOD            36.13N  86.21W
07/21/2018                   WILSON             TN   EMERGENCY MNGR

            LARGE TREE ACROSS ROADWAY ON SPARTA PIKE AT YOUNG ROAD

0255 AM     TSTM WND DMG     7 ESE MANCHESTER        35.41N  85.97W
07/21/2018                   COFFEE             TN   EMERGENCY MNGR

            TREES REPORTED DOWN ACROSS EASTERN COFFEE COUNTY

&&

EVENT NUMBER OHX1800289 OHX1800320 OHX1800292 OHX1800290 OHX1800291
OHX1800321 OHX1800295 OHX1800302 OHX1800294 OHX1800305 OHX1800296
OHX1800297 OHX1800313 OHX1800319 OHX1800298 OHX1800322 OHX1800299
OHX1800301 OHX1800300 OHX1800303 OHX1800304 OHX1800307 OHX1800306
OHX1800308 OHX1800309 OHX1800315 OHX1800310 OHX1800311 OHX1800316
OHX1800312 OHX1800314 OHX1800317 OHX1800318

SHAMBURGER
Local storm report, Jul 21, 4:50 AM CDT, 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
450 AM CDT SAT JUL 21 2018

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

1240 AM     TSTM WND DMG     LAFAYETTE               36.52N  86.03W
07/21/2018                   MACON              TN   911 CALL CENTER

            NUMEROUS TREES AND SOME POWER LINES DOWN ACROSS MACON
            COUNTY FROM LAFAYETTE EASTWARD

&&

EVENT NUMBER OHX1800323

SHAMBURGER
Special weather statement, Jul 21, 4:52 AM CDT, 39 minutes before
Special Weather Statement
National Weather Service Nashville TN
452 AM CDT SAT JUL 21 2018

TNZ030-032-064-211015-
Putnam TN-De Kalb TN-Smith TN-
452 AM CDT SAT JUL 21 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN SMITH...NORTHERN DE
KALB AND SOUTHWESTERN PUTNAM COUNTIES UNTIL 515 AM CDT...

At 452 AM CDT, Doppler radar was tracking a strong thunderstorm near
Gordonsville, or 9 miles south of Carthage, moving southeast at 40
mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Smithville, Gordonsville, Hickman, South Carthage, Alexandria,
Dowelltown, Center Hill Lake and Edgar Evans State Park.

LAT...LON 3610 8558 3591 8573 3607 8605 3608 8606
      3609 8606 3611 8607 3613 8607 3624 8599
TIME...MOT...LOC 0952Z 300DEG 37KT 3613 8597

Shamburger

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 7:12 PM CDTSevere Thunderstorm WarningOHXClay, Fentress, Jackson, Overton, Pickett48 min
Jul 20, 7:27 PM CDTSevere Thunderstorm WarningOHXClay33 min
Jul 20, 7:46 PM CDTSevere Thunderstorm WarningOHXJackson, Overton, Putnam44 min
Jul 20, 7:56 PM CDTSevere Thunderstorm WarningOHXClay, Jackson, Overton, Pickett49 min
Jul 20, 8:23 PM CDTSevere Thunderstorm WarningOHXCumberland, Overton, Putnam, White52 min
Jul 20, 8:34 PM CDTTornado WarningOHXCumberland, Fentress, Overton, Putnam26 min
Jul 20, 8:47 PM CDTTornado WarningOHXCumberland, Putnam, White28 min
Jul 20, 8:52 PM CDTSevere Thunderstorm WarningOHXJackson, Putnam, White23 min
Jul 20, 9:10 PM CDTTornado WarningOHXCumberland, White35 min
Jul 20, 9:14 PM CDTSevere Thunderstorm WarningOHXOverton, Putnam, White46 min
Jul 20, 9:44 PM CDTSevere Thunderstorm WarningOHXCumberland, Van Buren, White46 min
Jul 20, 9:48 PM CDTAreal Flood AdvisoryOHXCumberland, Putnam, White3 hr
Jul 20, 10:20 PM CDTSpecial Weather StatementOHXPickett40 min
Jul 20, 10:40 PM CDTSpecial Weather StatementOHXVan Buren35 min
Jul 20, 11:25 PM CDTSpecial Weather StatementOHXCumberland35 min
Jul 20, 11:48 PM CDTSpecial Weather StatementOHXJackson, Overton42 min
Jul 21, 12:02 AM CDTSevere Thunderstorm WarningOHXJackson, Overton, Putnam28 min
Jul 21, 12:15 AM CDTSpecial Weather StatementOHXClay, Fentress, Macon, Pickett45 min
Jul 21, 12:27 AM CDTSevere Thunderstorm WarningOHXJackson, Overton, Putnam33 min
Jul 21, 12:39 AM CDTSpecial Weather StatementOHXTrousdale51 min
Jul 21, 12:48 AM CDTSevere Thunderstorm WarningOHXCumberland, Fentress, Overton, Putnam57 min
Jul 21, 12:52 AM CDTAreal Flood AdvisoryOHXJackson, Overton, Putnam2 hr
Jul 21, 1:01 AM CDTSpecial Weather StatementOHXJackson, Overton, Putnam, Smith44 min
Jul 21, 1:21 AM CDTSevere Thunderstorm WarningOHXDeKalb, Smith, Sumner, Trousdale, Wilson39 min
Jul 21, 1:53 AM CDTAreal Flood AdvisoryOHXDeKalb, Smith, Wilson2 hr
Jul 21, 2:04 AM CDTSpecial Weather StatementOHXCannon, DeKalb, Van Buren, Warren, White, Wilson56 min
Jul 21, 2:38 AM CDTSevere Thunderstorm WarningOHXCoffee, Grundy52 min
Jul 21, 2:55 AM CDTSpecial Weather StatementOHXMacon, Sumner65 min
Jul 21, 3:38 AM CDTSpecial Weather StatementOHXSmith, Trousdale, Wilson67 min
Jul 21, 4:52 AM CDTSpecial Weather StatementOHXDeKalb23 min
Jul 21, 5:04 AM CDTSevere Thunderstorm WarningOHXDeKalb, Putnam, Van Buren, White28 min
Jul 21, 7:35 AM CDTSpecial Weather StatementOHXPutnam40 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2018Every severe thunderstorm warning in 2018

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.