Tornado Watch 450

Issued

Jul 27, 2014, 7:00 PM CDT (00:00 UTC)

Expired

Jul 28, 2014, 12:24 AM CDT

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

2.5 in

Strongest gust expected

60 kt

The Knoxville radar (KMRX), 95 km from the middle of the area, began a volume at 00:04 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

50%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 1491Jul 27, 6:28 PM CDT
• Mesoscale Discussion 1495Jul 27, 11:32 PM CDT

096 
WWUS20 KWNS 272359
SEL0  
SPC WW 272359
KYZ000-NCZ000-TNZ000-VAZ000-280600-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 450
NWS STORM PREDICTION CENTER NORMAN OK
800 PM EDT SUN JUL 27 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  EASTERN KENTUCKY
  EXTREME SOUTHWESTERN NORTH CAROLINA
  EASTERN TENNESSEE
  EXTREME SOUTHWESTERN VIRGINIA

* EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 800 PM
  UNTIL 200 AM EDT.

* PRIMARY THREATS INCLUDE...
  A FEW TORNADOES POSSIBLE
  SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2.5
    INCHES IN DIAMETER POSSIBLE
  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE
MILES EITHER SIDE OF A LINE FROM 15 MILES SOUTH SOUTHEAST OF
CROSSVILLE TENNESSEE TO 50 MILES EAST NORTHEAST OF JACKSON
KENTUCKY.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

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 445...WW 447...WW
448...WW 449...

DISCUSSION...ONGOING SUPERCELLS OVER PORTIONS ERN TN...FAVORABLE
CAPE/DEEP-SHEAR PARAMETER SPACE...AND POTENTIAL FOR ADDITIONAL TSTMS
TO BECOME SVR OVER REMAINDER AREA WITH AT LEAST MRGL TORNADO
POTENTIAL...COMPELS ISSUANCE OF A NEW WW OVER MUCH OF THE SAME AREA
AS PREVIOUS.  REF SPC MESOSCALE DISCUSSION 1491 FOR
ADDITIONAL/NEAR-TERM DETAILS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 30025.


...EDWARDS

Tornado Watches in Kentucky, 2014Tornado Watches in Tennessee, 2014Tornado Watches in Virginia, 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.