Special Weather Statement, NWS Nashville, TN

Area Forecast Discussion
National Weather Service Nashville TN
810 PM CDT Wed Apr 7 2021

.UPDATE...
FOR EVENING DISCUSSION.

&&

.DISCUSSION...

A broad area of showers and thunderstorms is progressing eastward
across West Tennessee and eastern Arkansas, along and ahead of a
surface boundary that will eventually come through Middle
Tennessee later tonight and tomorrow morning. Expect this activity
to weaken the farther east it goes, but some strong to severe
storms are still possible in our area, mainly west of I-65. The
HRRR brings the leading edge of this activity across the Tennessee
River between 03-04Z, and into Nashville Metro between 06-07Z,
with considerable weakening thereafter. The 00Z sounding from OHX
does show some instability, but is also somewhat dry and lacking
in significant low-level wind shear. The surface-based CAPE is
700 J/kg and the LI is -2. PWAT is 0.98" and the 0-3 km storm-
relative helicity is 78. Hourly grids are holding up well thus
far and see no need for a forecast update at this time.

&&

.AVIATION...
00Z TAF DISCUSSION.

VFR conditions will continue for a few more hours, but showers
and a few thunderstorms will approach from the west by 03-04Z and
bring MVFR cigs/vis to BNA/MQY/CKV. CSV will see reduced flying
categories, too, but not until after 07Z. VFR should return for
all terminals by 18Z Thursday.

South to southwest winds will continue to be gusty through the
period.

&&

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

&&

DISCUSSION......08
AVIATION........Unger

Hazardous Weather Outlook
National Weather Service Nashville TN
337 AM CDT Wed Apr 7 2021

TNZ005>011-023>034-056>066-075-077>080-093>095-081030-
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-
337 AM CDT Wed Apr 7 2021

This Hazardous Weather Outlook is for Middle Tennessee.

.DAY ONE...Today and tonight.

A few strong thunderstorms are possible tonight, generally west
of I-65. Main concern is strong gusty winds.

Heavy rain is possible tonight into early Thursday, especially
across the southwest. Minor flooding may occur.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

A few strong thunderstorms may remain early Thursday east of I-65.
Main concern continues to be strong gusty winds.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not likely. Please relay any information
about observed severe weather to the NWS while following all
local, state, and CDC guidelines.

07

Special Weather Statement
National Weather Service Nashville TN
101 AM CDT Thu Apr 8 2021

TNZ008-009-027>030-062>064-075-077-080645-
Cannon TN-Rutherford TN-Davidson TN-Wilson TN-Bedford TN-Coffee TN-
Trousdale TN-Sumner TN-De Kalb TN-Macon TN-Smith TN-
101 AM CDT Thu Apr 8 2021

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN SMITH...EAST CENTRAL
DAVIDSON...NORTHWESTERN DE KALB...RUTHERFORD...SOUTHEASTERN SUMNER...
NORTHWESTERN COFFEE...WILSON...BEDFORD...CENTRAL MACON...TROUSDALE
AND CANNON COUNTIES UNTIL 145 AM CDT...

At 100 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Gallatin to 6 miles north of Petersburg.
Movement was east at 35 mph.

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

Locations impacted include...
Murfreesboro, Gallatin, Lebanon, Shelbyville, Manchester, Lafayette,
Woodbury, Carthage, Hartsville, Hendersonville, Smyrna, La Vergne,
Mount Juliet, Watertown, Gordonsville, Walterhill, Rural Hill,
Belinda City, South Carthage and Alexandria.

LAT...LON 3663 8590 3543 8604 3539 8628 3541 8625
      3541 8628 3539 8630 3537 8633 3534 8648
      3536 8649 3535 8653 3536 8654 3537 8658
      3537 8662 3540 8664 3638 8654 3663 8595
TIME...MOT...LOC 0600Z 249DEG 31KT 3633 8651 3540 8660

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