Tornado Watch 17

Issued

Jan 30, 2013, 5:51 AM EST (10:51 UTC)

Expired

Jan 30, 2013, 1:00 PM EST

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

1 in

Strongest gust expected

60 kt

The Knoxville radar (KMRX), 32 km from the middle of the area, began a volume at 10:53 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

40%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

30%

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

70%

• Mesoscale Discussion 87Jan 30, 2:31 AM EST
• Mesoscale Discussion 88Jan 30, 3:33 AM EST
• Mesoscale Discussion 93Jan 30, 7:38 AM EST
• Mesoscale Discussion 94Jan 30, 8:43 AM EST
• Mesoscale Discussion 96Jan 30, 10:19 AM EST
• Mesoscale Discussion 98Jan 30, 12:50 PM EST

467 
WWUS20 KWNS 301051
SEL7  
SPC WW 301051
GAZ000-KYZ000-OHZ000-TNZ000-VAZ000-WVZ000-301800-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 17
NWS STORM PREDICTION CENTER NORMAN OK
550 AM EST WED JAN 30 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       FAR NORTHWEST GEORGIA
       EASTERN KENTUCKY
       SOUTHERN OHIO
       EASTERN TENNESSEE
       FAR SOUTHWEST VIRGINIA
       FAR WESTERN WEST VIRGINIA

EFFECTIVE THIS WEDNESDAY MORNING AND AFTERNOON FROM 550 AM UNTIL
100 PM EST.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES EAST AND WEST OF A LINE FROM 55 MILES SOUTH OF KNOXVILLE
TENNESSEE TO 5 MILES NORTH NORTHWEST OF HUNTINGTON WEST VIRGINIA.
 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU7).

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...

DISCUSSION...QLCS WITH A HISTORY OF WIND DAMAGE OVER CNTRL KY/MIDDLE
TN IS EXPECTED TO PROGRESS EWD ACROSS THE WATCH AREA THIS MORNING. 
THOUGH INSTABILITY REMAINS VERY WEAK...INTENSE VERTICAL SHEAR AND
FORCING FOR ASCENT WILL MAINTAIN EMBEDDED LEWP STRUCTURES CAPABLE OF
DAMAGING WINDS AND PERHAPS A TORNADO OR TWO.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 300.
MEAN STORM MOTION VECTOR 22045.


...MEAD

Tornado Watches in Kentucky, 2013Tornado Watches in Tennessee, 2013Tornado Watches in West Virginia, 2013Every tornado watch in 2013

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.