Special Weather Statement, NWS Nashville, TN

Area Forecast Discussion
National Weather Service Nashville TN
139 PM CDT Sat Jun 12 2021

.DISCUSSION...

A few thunderstorms have formed in the steamy air across Middle
Tennessee. A couple of the storms this afternoon and early
evening may be briefly severe with damaging wind gusts. Generally
greater coverage (30-40 percent) is expected over our western
counties where SPC has a marginal risk in place. This area is also
showing greatest capes with surface based values well over 3
kJ/kg and heat index values around 100. Showers and storms will
slowly fizzle late this evening and patchy fog is expected again
tonight.

On Sunday, similar heat and humidity coupled with the passage of
a cold front will reignite scattered thunderstorms across the
area. Again, a couple could be strong to briefly severe through
early evening Sunday.

A very different wx pattern will develop after Sunday. A
deepening trough over the eastern states will allow a few waves of
fresh Canadian air to bring some cooler and much less humid air
to Tennessee for several days. By next weekend, heat and humidity
will start creeping up again along with a chance for scattered
thunderstorms.

&&

.AVIATION...
12Z TAF DISCUSSION.

Upper trough over the mid-state finally moving off the plateau.
Shower/storm development likely to be way down today/this evening
compared to the last few days. Fog this morning will dissipate
quickly. Only VCTS in afternoon group for pcpn at this time...
but CKV has best chance of seeing storms this afternoon. Fog is
likely to develop again later tonight, and may once again go to
IFR levels CSV.

&&

.PRELIMINARY POINT TEMPS/POPS...
Nashville      72  91  69  91  64 /  30  30  10   0   0
Clarksville    71  89  66  89  62 /  30  30  10   0   0
Crossville     64  86  65  85  61 /  20  30  30   0   0
Columbia       69  90  67  89  64 /  20  30  20   0   0
Lawrenceburg   69  90  68  89  64 /  20  30  20   0   0
Waverly        70  89  66  89  64 /  40  30  10   0   0

&&

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

&&

DISCUSSION......13
AVIATION........07

Hazardous Weather Outlook
National Weather Service Nashville TN
119 PM CDT Sat Jun 12 2021

TNZ005>011-023>034-056>066-075-077>080-093>095-131830-
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-
119 PM CDT Sat Jun 12 2021

This Hazardous Weather Outlook is for Middle Tennessee.

.DAY ONE...This afternoon and tonight.

A few strong to briefly severe thunderstorms are possible this
afternoon and evening. Damaging wind gusts are the main concern.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

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

13

Special Weather Statement
National Weather Service Nashville TN
542 PM CDT Sat Jun 12 2021

TNZ059>061-095-122330-
Williamson TN-Maury TN-Giles TN-Marshall TN-
542 PM CDT Sat Jun 12 2021

...SIGNIFICANT WEATHER ADVISORY FOR MARSHALL...SOUTHEASTERN MAURY...
SOUTHEASTERN WILLIAMSON AND NORTHEASTERN GILES COUNTIES UNTIL 630 PM
CDT...

At 542 PM CDT, Doppler radar was tracking a strong thunderstorm near
Lewisburg, moving south at 20 mph.

Pea size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Columbia, Lewisburg, Spring Hill, Chapel Hill, Cornersville, Belfast,
Frankewing, I-65 East Of Columbia and Farmington.

This includes Interstate 65 between mile markers 15 and 55.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3520 8699 3578 8691 3577 8669 3572 8670
      3572 8669 3531 8667 3525 8675 3526 8683
      3519 8683
TIME...MOT...LOC 2242Z 004DEG 18KT 3553 8683

Barnwell

Special Weather Statement
National Weather Service Nashville TN
554 PM CDT Sat Jun 12 2021

TNZ033-034-066-130000-
Cumberland TN-Fentress TN-Overton TN-
554 PM CDT Sat Jun 12 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN OVERTON...CUMBERLAND
AND FENTRESS COUNTIES UNTIL 700 PM CDT...

At 554 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 12 miles northeast of Monterey to 6 miles east
of Fairfield Glade. Movement was south at 50 mph.

Wind gusts up to 50 mph will be possible with these storms.

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

This includes Interstate 40 between mile markers 310 and 340.

LAT...LON 3583 8477 3576 8492 3575 8502 3577 8504
      3577 8521 3610 8517 3614 8510 3615 8516
      3641 8513 3641 8510 3652 8507 3638 8469
      3632 8479 3630 8480 3628 8488 3621 8491
      3615 8491 3609 8480 3600 8472 3591 8468
TIME...MOT...LOC 2254Z 002DEG 41KT 3626 8508 3598 8476

Barnwell

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
630 PM CDT SAT JUN 12 2021

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

0438 PM     TSTM WND DMG     LYNNVILLE               35.38N  87.01W
06/12/2021                   GILES              TN   MEDIA

            TREE DOWN ON BEAR CREEK PIKE

&&

EVENT NUMBER OHX2100533

BW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
633 PM CDT SAT JUN 12 2021

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

0605 PM     HAIL             7 NW LEWISBURG          35.52N  86.88W
06/12/2021  M1.00 INCH       MARSHALL           TN   SOCIAL MEDIA

&&

EVENT NUMBER OHX2100534

BW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
636 PM CDT SAT JUN 12 2021

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

0610 PM     HAIL             3 NNW LEWISBURG         35.49N  86.81W
06/12/2021  M0.88 INCH       MARSHALL           TN   SOCIAL MEDIA

&&

EVENT NUMBER OHX2100535

BW

Special Weather Statement
National Weather Service Nashville TN
641 PM CDT Sat Jun 12 2021

TNZ006-023>025-130030-
Dickson TN-Humphreys TN-Montgomery TN-Houston TN-
641 PM CDT Sat Jun 12 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN DICKSON...
SOUTHWESTERN MONTGOMERY...EASTERN HOUSTON AND NORTHEASTERN HUMPHREYS
COUNTIES UNTIL 730 PM CDT...

At 641 PM CDT, Doppler radar was tracking a strong thunderstorm 9
miles northeast of McEwen, or 10 miles southeast of Erin, moving
southeast at 15 mph.

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

Locations impacted include...
Dickson, Erin, McEwen, Burns, Charlotte, Vanleer, Cumberland City and
Slayden.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3601 8720 3598 8744 3599 8753 3597 8753
      3595 8771 3637 8769 3637 8759 3641 8760
      3644 8753
TIME...MOT...LOC 2341Z 333DEG 13KT 3623 8755

Barnwell