Severe Thunderstorm Warning 159, NWS Nashville, TN

742 
WWUS54 KOHX 281803
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
103 PM CDT Fri Aug 28 2020

TNC021-281812-
/O.CAN.KOHX.SV.W.0159.000000T0000Z-200828T1815Z/
Cheatham TN-
103 PM CDT Fri Aug 28 2020

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHEATHAM COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 400 PM CDT for Middle
Tennessee.

LAT...LON 3624 8663 3602 8699 3640 8689 3644 8684
TIME...MOT...LOC 1802Z 225DEG 40KT 3630 8677 

$$

TNC037-147-281815-
/O.CON.KOHX.SV.W.0159.000000T0000Z-200828T1815Z/
Davidson TN-Robertson TN-
103 PM CDT Fri Aug 28 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM CDT
FOR CENTRAL DAVIDSON AND SOUTH CENTRAL ROBERTSON COUNTIES...

At 102 PM CDT, a severe thunderstorm was located near Madison, or 8
miles north of Nashville, moving northeast at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated. At 1255 PM CDT, a wind gust of 48 mph was 
         measured at John Tune Airport with these storms.

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

Locations impacted include...
Nashville, Madison, Goodlettsville, Greenbrier, Belle Meade,
Lakewood, Bellevue, Joelton, Old Hickory, Beaman Park, Bells Bend and
Whites Creek.

This includes the following highways...
 Interstate 40 between mile markers 196 and 209.
 Interstate 65 between mile markers 85 and 95.
 Interstate 24 between mile markers 33 and 49.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 400 PM CDT for Middle
Tennessee.

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

&&

LAT...LON 3624 8663 3602 8699 3640 8689 3644 8684
TIME...MOT...LOC 1802Z 225DEG 40KT 3630 8677 

HAIL...<.75IN
WIND...60MPH
 
$$

Shamburger

Area Forecast Discussion
National Weather Service Nashville TN
1235 PM CDT Fri Aug 28 2020

.UPDATE...
FOR 18Z AVIATION DISCUSSION.

&&

.DISCUSSION...

Tornado watch now in effect for the western half of the area
through 4 pm as the remnants of Laura works its way east. The
tornado threat will not come to an end at that point as a
favorable tornadic environment will spread eastward. Instability
and low level shear are slowly increasing in the west, and a
favorable environment for low topped supercells with the potential
for quick spin up tornadoes is increasing. 12Z model runs are
starting to come in, and suggest slightly lower QPF over the area
today. However, with a tropical system, PWAT values in addition to
a high freezing level/deep warm cloud depth support showers and
storms producing very heavy rainfall in a short duration. The
threat for flooding even outside of the flash flood watch will be
possible, especially for areas that receive stronger cells and/or
training of multiple rounds of heavy rain. Strong to severe
storms, in addition to the tornado threat, will also be able to
produce some damaging wind gusts as well. Outside of
thunderstorms, winds of 10-25 mph with gusts up to 40 mph will be
possible today, calming down a bit overnight tonight. Updated the
short term forecast to line up with latest guidance and forecast
thinking.

&&

.AVIATION...
18Z TAF DISCUSSION.

As of 17:30Z the center of the remnants of Laura was at the toe
of the MO boot...and moving into TN/KY. This means the outer bands
are in middle TN. MVFR/VFR conditions will continue to degrade
through the day and into the evening. There is a chance for severe
weather across the whole area including brief spin ups. Winds
will be southerly and gusting to 25KTs and then shift more
westerly overnight. Even as the rain comes to an end west to east
low clouds and IFR/LIFR conditions will occur overnight. CIGs will
gradually raise after 14Z once again west to east.

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
Flash Flood Watch through late tonight for Bedford-Cheatham-
Davidson-Dickson-Giles-Hickman-Houston-Humphreys-Lawrence-Lewis-
Marshall-Maury-Montgomery-Perry-Robertson-Rutherford-Stewart-
Sumner-Wayne-Williamson-Wilson.

&&

DISCUSSION......Barnwell
AVIATION........12

Hazardous Weather Outlook
National Weather Service Nashville TN
333 AM CDT Fri Aug 28 2020

TNZ005>011-023>034-056>066-075-077>080-093>095-290845-
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-
333 AM CDT Fri Aug 28 2020

This Hazardous Weather Outlook is for Middle Tennessee.

.DAY ONE...Today and tonight.

The remnants of Hurricane Laura will move across Middle Tennessee
today and tonight. Gusty winds and heavy downpours are expected,
especially this afternoon and evening.

A few severe storms with damaging winds are possible, and a couple
of brief tornadoes may form. The main time for possible severe storms
and spinup tornadoes will be this afternoon and this evening until
midnight.

The downpours could be heavy enough to cause some localized flash
flooding. Western sections have the greatest potential for flooding,
so a Flash Flood Watch is in place generally along and west of I-65
this afternoon and evening.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

A few strong storms with gusty winds may occur Saturday afternoon and
evening.

.SPOTTER INFORMATION STATEMENT...

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

13

Special Weather Statement
National Weather Service Nashville TN
1124 AM CDT Fri Aug 28 2020

TNZ024-025-057-281700-
Hickman TN-Dickson TN-Humphreys TN-
1124 AM CDT Fri Aug 28 2020

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN DICKSON...EAST CENTRAL
HUMPHREYS AND NORTHWESTERN HICKMAN COUNTIES UNTIL NOON CDT...

At 1123 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near McEwen to 9 miles southeast of Hurricane
Mills. Movement was northeast at 50 mph.

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

Locations impacted include...
Dickson, McEwen, Burns, Charlotte, Vanleer, Pinewood and Bucksnort.

This includes Interstate 40 between mile markers 149 and 174.

A Tornado Watch remains in effect until 400 PM CDT for Middle
Tennessee.

LAT...LON 3608 8769 3617 8758 3619 8756 3632 8740
      3632 8736 3604 8728 3578 8771
TIME...MOT...LOC 1623Z 226DEG 34KT 3607 8761 3590 8764

Hawblitzel

Special Weather Statement
National Weather Service Nashville TN
1152 AM CDT Fri Aug 28 2020

TNZ058-060-093>095-281730-
Lawrence TN-Wayne TN-Lewis TN-Maury TN-Giles TN-
1152 AM CDT Fri Aug 28 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN LEWIS...NORTHEASTERN
WAYNE...NORTHERN LAWRENCE...SOUTHWESTERN MAURY AND NORTHWESTERN GILES
COUNTIES UNTIL 1230 PM CDT...

At 1151 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles southwest of Hohenwald to near
Collinwood. Movement was east at 45 mph.

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

Locations impacted include...
Columbia, Lawrenceburg, Pulaski, Mount Pleasant, Summertown, Ethridge
and Henryville.

A Tornado Watch remains in effect until 400 PM CDT for Middle
Tennessee.

LAT...LON 3561 8704 3517 8702 3518 8768 3548 8766
TIME...MOT...LOC 1651Z 253DEG 39KT 3548 8764 3521 8765

Hawblitzel

Special Weather Statement
National Weather Service Nashville TN
1224 PM CDT Fri Aug 28 2020

TNZ094-095-281815-
Lawrence TN-Giles TN-
1224 PM CDT Fri Aug 28 2020

...SIGNIFICANT WEATHER ADVISORY FOR LAWRENCE AND WEST CENTRAL GILES
COUNTIES UNTIL 115 PM CDT...

At 1224 PM CDT, Doppler radar was tracking a strong thunderstorm over
Loretto, or 11 miles southwest of Lawrenceburg, moving northeast at
35 mph.

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

Locations impacted include...
Lawrenceburg, Pulaski, Loretto, Summertown, St. Joseph, Ethridge,
Leoma and Westpoint.

A Tornado Watch remains in effect until 400 PM CDT for Middle
Tennessee.

LAT...LON 3516 8758 3519 8758 3545 8731 3544 8727
      3523 8697 3500 8743
TIME...MOT...LOC 1724Z 236DEG 30KT 3512 8746

Hawblitzel