Severe Thunderstorm Warning 73, NWS Nashville, TN

209 
WWUS54 KOHX 212251
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
551 PM CDT TUE MAR 21 2017

TNC015-031-212301-
/O.CAN.KOHX.SV.W.0073.000000T0000Z-170321T2315Z/
Coffee TN-Cannon TN-
551 PM CDT TUE MAR 21 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN COFFEE AND
CENTRAL CANNON COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore the warning has been cancelled.

A severe thunderstorm watch remains in effect until 1000 PM CDT for
Middle Tennessee.

LAT...LON 3543 8583 3596 8590 3595 8526 3592 8525
      3591 8521 3589 8523 3587 8522 3580 8525
      3579 8527 3579 8525 3571 8527 3569 8529
      3557 8542 3555 8546 3553 8561 3549 8554
      3543 8554 3541 8551 3540 8549 3541 8554
TIME...MOT...LOC 2251Z 275DEG 47KT 3566 8535 

$$

TNC041-061-175-177-185-212315-
/O.CON.KOHX.SV.W.0073.000000T0000Z-170321T2315Z/
De Kalb TN-Van Buren TN-Warren TN-Grundy TN-White TN-
551 PM CDT TUE MAR 21 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR SOUTHEASTERN DE KALB...VAN BUREN...WARREN...NORTHERN GRUNDY AND
WHITE COUNTIES...

At 551 PM CDT, a severe thunderstorm was located 8 miles southeast of
Spencer, moving east at 55 mph.

HAZARD...70 mph wind gusts and nickel size hail. 

SOURCE...Radar indicated. 

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings. 

Locations impacted include...
McMinnville, Sparta, Smithville, Spencer, Altamont, Doyle, Beersheba
Springs, Virgin Falls State Natural Area, Rock Island State Park 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 3543 8583 3596 8590 3595 8526 3592 8525
      3591 8521 3589 8523 3587 8522 3580 8525
      3579 8527 3579 8525 3571 8527 3569 8529
      3557 8542 3555 8546 3553 8561 3549 8554
      3543 8554 3541 8551 3540 8549 3541 8554
TIME...MOT...LOC 2251Z 275DEG 47KT 3566 8535 

HAIL...0.88IN
WIND...70MPH
 
$$

Barnwell

Area Forecast Discussion
National Weather Service Nashville TN
301 PM CDT Tue Mar 21 2017

.DISCUSSION...

Convective complex dropping ese across KY and now into nw TN. This
activity is currently reaching into our far western counties at
this time. Frontal boundary is located w-e across central
portions the mid state, just south of I-40. As the series of
impulses upstream moves closer to the boundary location, storms
will become stronger and will amplify the hail threat. Mid level
lapse rates are around 8C to 8.5 C across much of the area, with
elevated instability extending north of the boundary. Shear levels
increase, especially south of the boundary so will taylor zones
to reflect the lg hail threat north, and the lg hail and scattered
wind threat south. A severe tstm watch was issued in the last 15
min and it includes all but the northern tier of our county
warning area. The system looks to be rather progressive although
there are some weaker impulses behind it which could bring some
additional showers late tonight. Otw, the timeframe for the severe
threat looks like now through around 7 pm. Hrrr concurs with that
timeframe.

Moving on, aforementioned frontal boundary will continue to move
southward and will be well into the deep south by sunrise. A cooler
and drier day is expected for Wednesday. After lows of near 40,
highs will top out in the 55 to 60 degree range.

A return flow will begin to set up on Thursday and Friday, but upper
ridging will keep conditions dry. A warmup, however, will commence
and we will be back up into the 60s on Thursday.

In the ext fcst, The weather pattern will become more active with a
series of lows moving eastward through the period. The best chances
for rain will be Sat nt and Monday. As for any tstm or severe
potential, 850 mb speeds increase Sat nt with instabilities being
more favorable on Mon. Cannot rule out strong to severe tstms
potential for either time as the mid level jet is in place.

For the ext temps, southerly moist flow to prevail so we will see
temps that are a good 10 to 15 degrees above normal. This equates to
lows in the 50s, and highs in the 70s.

Will go ahead and issue the zones early. This will reflect the
current svr tstm watch. I will also include a pre evening period due
to the progressiveness of the system.

&&

.AVIATION...
18Z TAF DISCUSSION.

Mostly VFR, but with a boundary sitting across Middle TN, a very
small cloud deck has developed between KCKV and KBNA and has given
KBNA some BKN MVFR cigs. I think there is a good chance that this
deck works its way up to KCKV, so I've prevailed it in the next
couple of hours.

The bigger story will be the line of TS that will push through and
likely affect all 3 terminal later this afternoon and evening.
Have tried to time out the activity with the latest hi-res
guidance, but we can expect IFR cigs/vis with the line.

Conditions will improve rather quickly this evening but as the
front sags into Middle TN, northerly wind gusts will pick up
tonight.

&&

.PRELIMINARY POINT TEMPS/POPS...
Nashville      42  57  42  66  50 /  60  10   0   0  10
Clarksville    38  55  38  64  50 /  50  10  10  10  10
Crossville     41  54  38  58  45 /  60  10  10   0  10
Columbia       45  58  44  65  50 /  70  10  10   0  10
Lawrenceburg   45  59  44  65  50 /  70  10  10   0  10
Waverly        42  56  42  65  52 /  60  10  10  10  10

&&

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

&&

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

Hazardous Weather Outlook
National Weather Service Nashville TN
505 AM CDT Tue Mar 21 2017

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-
505 AM CDT Tue Mar 21 2017

This Hazardous Weather Outlook is for portions of Middle
Tennessee.

.DAY ONE...Today and Tonight

There is a slight risk (level 2 out of 5) for severe thunderstorms
across southern Middle Tennessee this afternoon and evening,
generally along and south of the I-40 corridor.

A cold front will shift south to near I-40 by midday, with
scattered showers and thunderstorms expected to develop along and
south of the front this afternoon and continue into the evening.
Large hail and damaging winds will be possible in the strongest
storms, along with heavy rainfall and localized flooding.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Strong thunderstorms will be possible on Saturday as another cold
front shifts from west to east across Middle Tennessee.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be need this afternoon into this evening.

Shamburger

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
510 PM CDT TUE MAR 21 2017

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

0353 PM     HAIL             15 W COLUMBIA           35.62N  87.32W
03/21/2017  E1.00 INCH       MAURY              TN   TWITTER

            HAMPSHIRE COMMUNITY

&&

EVENT NUMBER OHX1700271

ROSE

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
514 PM CDT TUE MAR 21 2017

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

0447 PM     TSTM WND DMG     15 S MURFREESBORO       35.64N  86.39W
03/21/2017                   RUTHERFORD         TN   TWITTER

            ROOF DAMAGE TO ELEMENTARY SCHOOL

&&

EVENT NUMBER OHX1700272

ROSE

Special Weather Statement
National Weather Service Nashville TN
522 PM CDT TUE MAR 21 2017

TNZ094-095-212300-
Lawrence TN-Giles TN-
522 PM CDT TUE MAR 21 2017

...SIGNIFICANT WEATHER ADVISORY FOR LAWRENCE AND GILES COUNTIES UNTIL
600 PM CDT...

At 522 PM CDT, Doppler radar was tracking a strong thunderstorm near
Lawrenceburg, moving east at 35 mph.

Dime size hail and wind gusts up to 50 mph will be possible with this
storm.

Locations impacted include...
Lawrenceburg, Pulaski, Loretto, St. Joseph, Minor Hill, Ethridge,
Goodspring, Leoma, Westpoint, Frankewing and Iron City.

A severe thunderstorm watch remains in effect until 1000 PM CDT for
Middle Tennessee.

LAT...LON 3500 8759 3503 8759 3504 8758 3505 8758
      3506 8759 3514 8759 3516 8758 3519 8757
      3530 8758 3544 8726 3543 8723 3544 8723
      3544 8721 3518 8683 3500 8725
TIME...MOT...LOC 2222Z 292DEG 31KT 3528 8744

Barnwell

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
524 PM CDT TUE MAR 21 2017

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

0523 PM     TSTM WND DMG     MANCHESTER              35.47N  86.08W
03/21/2017                   COFFEE             TN   EMERGENCY MNGR

            TREES DOWN AND A FEW PPOWER OUTAGES

&&

EVENT NUMBER OHX1700273

ROSE

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
525 PM CDT TUE MAR 21 2017

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

0451 PM     TSTM WND DMG     MURFREESBORO            35.85N  86.39W
03/21/2017                   RUTHERFORD         TN   TWITTER

            MULTIPLE REPORTS OF TREES DOWN ACROSS MURFREESBORO

&&

EVENT NUMBER OHX1700274

ROSE

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
528 PM CDT TUE MAR 21 2017

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

0526 PM     TSTM WND DMG     TULLAHOMA               35.37N  86.22W
03/21/2017                   COFFEE             TN   AMATEUR RADIO

            POWER OUTAGES IN KINGS LANE SUBDIVISION

&&

EVENT NUMBER OHX1700275

ROSE