Tornado Watch 19

Issued

Feb 20, 2014, 10:47 PM EST (03:47 UTC)

Expired

Feb 21, 2014, 5:00 AM EST

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

0.5 in

Strongest gust expected

60 kt

The Knoxville radar (KMRX), 77 km from the middle of the area, began a volume at 03:49 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Two or more tornadoes

30%

One or more EF2 to EF5 tornadoes

10%

Ten or more severe wind reports

70%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

5%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 130Feb 20, 9:01 PM EST
• Mesoscale Discussion 132Feb 20, 10:29 PM EST
• Mesoscale Discussion 134Feb 20, 11:38 PM EST
• Mesoscale Discussion 137Feb 21, 3:11 AM EST

083 
WWUS20 KWNS 210353
SEL9  
SPC WW 210353
GAZ000-KYZ000-NCZ000-TNZ000-VAZ000-211000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 19
NWS STORM PREDICTION CENTER NORMAN OK
1050 PM EST THU FEB 20 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  NORTH GEORGIA
  EASTERN KENTUCKY
  FAR WESTERN NORTH CAROLINA
  EASTERN TENNESSEE
  FAR SOUTHWEST VIRGINIA

* EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1050 PM
  UNTIL 500 AM EST.

* PRIMARY THREATS INCLUDE...
  SEVERAL TORNADOES POSSIBLE
  SEVERAL DAMAGING WIND GUSTS TO 70 MPH LIKELY

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH NORTHWEST OF
JACKSON KENTUCKY TO 35 MILES EAST SOUTHEAST OF ROME GEORGIA.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU9).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 14...WW 15...WW 16...WW
17...WW 18...

DISCUSSION...SFC AND VWP DATA SUGGEST THAT COLD FRONT ASSOCIATED
WITH DEEPENING MID-MS VLY SFC LOW WILL CONTINUE STEADILY ESE ACROSS
THE TN VLY OVERNIGHT. THIS SHOULD SERVE TO KEEP EXISTING PRE-FRONTAL
SQLN ACTIVE AS ASSOCIATED LOW-LVL CONVERGENCE FORCES PARCELS THROUGH
ELEVATED CAP AND NOCTURNAL CIN LAYER. GIVEN STRENGTH OF WIND
FIELD...AND SOME INCREASE IN WINDS EXPECTED WITH THE APPROACH OF
SECONDARY UPR IMPULSE NOW OVER THE WRN OZARKS...SETUP MAY SUPPORT
CONTINUED DEVELOPMENT OF EMBEDDED LEWPS/BOWS WITH AN ATTENDANT RISK
FOR DMGG WIND AND POSSIBLY SHORT-LIVED BUT FAST-MOVING TORNADOES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
400. MEAN STORM MOTION VECTOR 24050.


...CORFIDI

Tornado Watches in Kentucky, 2014Tornado Watches in Tennessee, 2014Tornado Watches in Georgia, 2014Every tornado watch in 2014

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.