Special Weather Statement, NWS Nashville, TN

Area Forecast Discussion
National Weather Service Nashville TN
708 PM CDT Tue Jul 21 2020

.UPDATE...
FOR EVENING DISCUSSION.

&&

.DISCUSSION...

Will opt to delay the decreasing pops as isol to sct coverage
persists. Hrrr wants to hold on to the activity into the evening
and given the current cape values this looks believable. This
evenings upper divergence appears to shift over eastern areas by
03Z and so the best shot of convection holding on is across that
area. Otw, overnight lows still look acceptable. No other changes.

&&

.AVIATION...
00Z TAF DISCUSSION.

Isolated to scattered convection again in place across middle TN
this afternoon. A weakening shortwave axis will be on approach
tomorrow and thus, afternoon coverage will be greater as compared
with today's activity. Otw, tover values are running positive this
afternoon and so for the overnight, just light fog will again be
possible, particularly for areas where rainfall occurred earlier.

&&

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

&&

DISCUSSION......11
AVIATION........21

Hazardous Weather Outlook
National Weather Service Nashville TN
508 AM CDT Tue Jul 21 2020

TNZ005>011-023>034-056>066-075-077>080-093>095-221015-
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-
508 AM CDT Tue Jul 21 2020

This Hazardous Weather Outlook is for Middle Tennessee.

.DAY ONE...Today and tonight.

Strong thunderstorms are possible across Middle Tennessee this
afternoon. Wind gusts of 40 to 50 mph are the main concern, along
with locally heavy rainfall.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Strong thunderstorms are possible across Middle Tennessee on
Wednesday. Wind gusts of 40 to 50 mph are the main concern, along
with locally heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

08

Special Weather Statement
National Weather Service Nashville TN
700 PM CDT Tue Jul 21 2020

TNZ061-075-220030-
Bedford TN-Marshall TN-
700 PM CDT Tue Jul 21 2020

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL MARSHALL AND WESTERN
BEDFORD COUNTIES UNTIL 730 PM CDT...

At 700 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Lewisburg to near Shelbyville. Movement
was north at 10 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Shelbyville, Lewisburg, Chapel Hill, Bell Buckle, Belfast, Deason,
Farmington and Unionville.

This includes Interstate 65 near mile marker 32.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3564 8679 3561 8635 3540 8643 3543 8689
TIME...MOT...LOC 0000Z 193DEG 11KT 3550 8679 3548 8650

13

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Special Weather Statement
National Weather Service Nashville TN
806 PM CDT Tue Jul 21 2020

TNZ028-030-062-220130-
Rutherford TN-Wilson TN-Smith TN-
806 PM CDT Tue Jul 21 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN SMITH...NORTHEASTERN
RUTHERFORD AND WILSON COUNTIES UNTIL 830 PM CDT...

At 806 PM CDT, Doppler radar was tracking a strong thunderstorm near
Walterhill, or 10 miles south of Lebanon, moving northeast at 25 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Murfreesboro, Lebanon, Smyrna, Watertown, Walterhill, Cedars Of
Lebanon State Park, Lascassas, Tuckers Crossroads and Gladeville.

This includes the following highways...
 Interstate 40 between mile markers 231 and 255.
 Interstate 840 between mile markers 58 and 76.

LAT...LON 3632 8634 3632 8632 3631 8630 3630 8627
      3630 8626 3621 8597 3586 8626 3598 8653
      3631 8636 3631 8634 3633 8635
TIME...MOT...LOC 0106Z 205DEG 28KT 3605 8632

21