River Flood Warning 5, NWS Nashville, TN

Area Forecast Discussion
National Weather Service Nashville TN
524 PM CST Sat Jan 19 2019

.UPDATE...
FOR 00Z AVIATION DISCUSSION.

&&

.DISCUSSION...

At 5 PM CST, a cold front was located along I-65, indicated by a
line of showers and a few thunderstorms with small hail.
Temperatures will plummet as the front continues to push eastward.
ALong with falling temps, northwest winds will become strong and
gusty with some gusts over 40 mph at times through the evening.

Other than the line of showers along the front, there was no
precipitation at 5 PM. However, a band of precipitation will
swing through the area late this evening. Snow was already falling
in northwest Tennessee with some accumulation starting on
elevated surfaces. Look for some snowflakes to start in
Clarksville around 7 PM and BNA around 9 PM. Most of Mid Tn
will have flurries or light snow showers by midnight.

We continue to expect light snow accums with less than 1 inch for
most areas. Many areas will have just a slushy coating. Some
will have no accum at all, especially along the Alabama border.
Locations most likely to reach 1 inch include the
Clarksville/Dover area, all along the Ky border, and across the
highest elevations of the Plateau.

By daybreak Sunday, wind chills will be in the single digits and
teens. Some slick travel is expected, especially in the Winter Wx
Advisory area and across the Upper Cumberland.

&&

.AVIATION...
00Z TAF DISCUSSION.

BNA/MQY/CKV/CSV...A strong cold front is marching across Middle
Tennessee as we head into evening. Most of the liquid
precipitation has exited the mid state, with only a thin line of
showers occurring along the frontal boundary. Temperatures behind
the front are plummeting, and already we are seeing snow reports
upstream and headed this way. Look for ceilings to bounce around
before the deeper occluded front moisture wraps into area and
clouds drop to IFR. Expect light to moderate rain & snow later
this evening and overnight, lasting into the morning along the
Cumberland Plateau. Winds will remain brisk the next 24 hours,
even as conditions go VFR tomorrow.

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory until 3 AM CST Sunday for Montgomery-
Stewart.

&&

DISCUSSION......13
AVIATION........08

Hazardous Weather Outlook...UPDATED
National Weather Service Nashville TN
232 PM CST Sat Jan 19 2019

TNZ005>011-023>034-056>066-075-077>080-093>095-201015-
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-
232 PM CST Sat Jan 19 2019

This Hazardous Weather Outlook is for portions of Middle
Tennessee.

.DAY ONE...This Afternoon and Tonight

Gusty winds can be expected through Sunday. The greatest
potential of gusts 35 up to 40 mph will be tonight into
early Sunday. Combined with arctic air, some isolated
locations may experience wind chills in the single digits.

Rain is expected to quickly change over to light snow showers
this evening, with snow showers continuing into early Sunday
on the Plateau. Snow accumulations will range from a dusting
south to one inch north of I-40. The northwest has potential
for up to 2 inches.

Light snow, along with any leftover standing water on area
roadways, bridges and overpasses, could freeze and cause
travel difficulties late Saturday night and early Sunday.

Very cold temperatures are expected Monday morning, with lows
dropping into the mid teens to lower 20s. Wind chills may fall
below 10 degrees in some areas.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Snow showers are possible Wednesday night, and again of Friday.
Significant uncertainty remains concerning accumulation amounts.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed tonight into early Sunday for
localized flooding and snowfall accumulation reports.

31

Special Weather Statement
National Weather Service Nashville TN
426 PM CST Sat Jan 19 2019

TNZ007>009-027>029-192315-
Robertson TN-Davidson TN-Wilson TN-Trousdale TN-Sumner TN-Macon TN-
426 PM CST Sat Jan 19 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN DAVIDSON...SUMNER...
NORTHERN WILSON...WESTERN MACON...TROUSDALE AND EASTERN ROBERTSON
COUNTIES UNTIL 515 PM CST...

At 425 PM CST, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles northwest of Cross Plains to near
Nashville. Movement was northeast at 50 mph.

Pea size hail, heavy downpours, and winds in excess of 30 mph will
be possible with these storms.

Locations impacted include...
Gallatin, Lebanon, Hartsville, Nashville, Madison, Hendersonville,
Mount Juliet, Goodlettsville, White House, Millersville, Greenbrier,
Oak Hill, Lakewood, Westmoreland, Ridgetop, Cross Plains, Portland,
Hermitage, Belinda City and Old Hickory.

LAT...LON 3663 8610 3615 8615 3608 8681 3664 8682
      3665 8680 3665 8659 3663 8656 3665 8651
      3665 8645
TIME...MOT...LOC 2225Z 238DEG 47KT 3660 8678 3620 8676

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