Tornado watch in effect, Winter weather advisory for later

The weather will be all over the place today through tomorrow. The following 3 statements include a severe weather advisory, and a winter weather advisory from NWS: Tornado Watch

TORNADO WATCH 517 IS IN EFFECT UNTIL 900 PM CST FOR THE
FOLLOWING LOCATIONS

BENTON CARROLL CHEATHAM
CHESTER CLAY CROCKETT
DAVIDSON DECATUR DICKSON
DYER FAYETTE GIBSON
HARDEMAN HARDIN HAYWOOD
HENDERSON HENRY HICKMAN
HOUSTON HUMPHREYS LAKE
LAUDERDALE LEWIS MACON
MADISON MAURY MCNAIRY
MONTGOMERY OBION PERRY
ROBERTSON RUTHERFORD SHELBY
STEWART SUMNER TIPTON
TROUSDALE WAYNE WEAKLEY
WILLIAMSON WILSON
1123 AM CST SAT DEC 17 2016

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
6 AM CST SUNDAY...

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A WINTER
WEATHER ADVISORY FOR FREEZING RAIN...WHICH IS IN EFFECT FROM
MIDNIGHT TONIGHT TO 6 AM CST SUNDAY.

* TIMING...MIDNIGHT TONIGHT THROUGH 6 AM SUNDAY MORNING.

* MAIN IMPACT...A TENTH OF AN INCH OF FREEZING RAIN ACCUMULATION
  ON ELEVATED AND MAINLY COLD SURFACES. SOME SLEET ACCUMULATION
  POSSIBLE TOO.

* OTHER IMPACTS...THE FREEZING RAIN AND SLEET COULD CHANGE OVER TO
  SNOW BRIEFLY IN THE MORNING. A LIGHT DUSTING MAY BE POSSIBLE ON
  MAINLY ROOFTOPS AND GRASSY SURFACES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.


Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
501 AM CST SAT DEC 17 2016

TNZ005>011-023>034-056>066-075-077>080-093>095-181100-
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-
501 AM CST SAT DEC 17 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF MIDDLE
TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

SOME STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE LATE THIS
AFTERNOON THROUGH THIS EVENING. MAIN CONCERNS WITH SEVERE
THUNDERSTORMS THAT DO DEVELOP WILL BE DAMAGING WINDS...ALTHOUGH
ISOLATED LARGE HAIL AND THE FORMATION OF A TORNADO CAN NOT TOTALLY
BE RULED OUT.

LATE TONIGHT A CHANGE OVER TO A WINTRY MIX OF LIGHT FREEZING
RAIN AND LIGHT SLEET...EVENTUALLY TURNING OVER TO LIGHT SNOWFALL
IS EXPECTED ACROSS NORTHWESTERN PORTIONS OF THE MID STATE REGION.
ALTHOUGH NO SLEET OR SNOWFALL ACCUMULATIONS ARE EXPECTED...ICE
ACCUMULATIONS ARE EXPECTED TO BE GENERALLY LESS THAN ONE TENTH OF
AN INCH. A FREEZING RAIN ADVISORY MAY BE ISSUED LATER TODAY FOR
TONIGHT IF EXPECTED WEATHER CONDITIONS WARRANT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

A WINTRY MIX OF LIGHT FREEZING RAIN AND LIGHT SLEET...EVENTUALLY
TURING OVER TO LIGHT SNOWFALL IS EXPECTED ACROSS MIDDLE TENNESSEE
DURING THE MORNING HOURS ON SUNDAY. ALTHOUGH ONLY MINOR
ACCUMULATIONS OF SNOW AND SLEET ARE EXPECTED...ICE ACCUMULATIONS
OF UP TO AROUND ONE TENTH OF AN INCH WILL BE POSSIBLE ACROSS
EASTERN PORTIONS OF THE MID STATE...ESPECIALLY THE CUMBERLAND
PLATEAU REGION. A FREEZING RAIN ADVISORY MAY NEED TO BE ISSUED
LATER TODAY FOR SUNDAY MORNING IF EXPECTED WEATHER CONDITIONS
WARRANT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TONIGHT AND INTO SUNDAY MORNING.

SPOTTER REPORTING CRITERIA...
TORNADO
FUNNEL CLOUD
FLOODING
HAIL >= 1/2 INCH
WINDS > 50 MPH (MEASURED)
STRUCTURAL DAMAGE
TREES OR POWER LINES DOWN
ICE ACCUMULATIONS ON ROADS/SURFACES >=0.10
SNOWFALL ACCUMULATIONS >= 1/2 INCH

31


 

Special Weather Statement

Special Weather Statement
National Weather Service Nashville TN
445 AM CST Sat Dec 17 2016



...Much warmer with showers today and strong to severe
thunderstorms late this afternoon and into this evening...

...Turning colder after midnight with the possibility of a wintry
mix through Sunday morning...

A powerful cold front will be on approach today and will move
across middle Tennessee tonight, In advance of this feature, much
warmer temperatures are expected. Showers and thunderstorms are
anticipated, with some thunderstorms reaching strong to perhaps
severe thresholds this evening, with the main threat being
damaging winds.

Tonight, after the arctic cold front sweeps across Middle
Tennessee, much colder air will return to the area. As this
occurs, rain may changeover to a wintry mix of light freezing
rain or light sleet after midnight tonight with the wintry
precipitation potential continuing into Sunday morning. A brief
changeover to light snow may occur before the precipitation ends.
Only minor accumulations of sleet and snow are expected. At this
time, ice accumulation amounts of a trace up to around one tenth
of an inch look possible.