Tornado Watch 264

Issued

May 24, 2017, 12:19 PM CDT (17:19 UTC)

Expired

May 24, 2017, 7:00 PM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

60 kt

The Knoxville radar (KMRX), 131 km from the middle of the area, began a volume at 17:20 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

10%

Ten or more severe hail reports

30%

One or more hailstones of 2 inches or more

10%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 828May 24, 11:47 AM CDT
• Mesoscale Discussion 831May 24, 2:02 PM CDT
• Mesoscale Discussion 833May 24, 2:50 PM CDT
• Mesoscale Discussion 835May 24, 5:51 PM CDT

758 
WWUS20 KWNS 241716
SEL4  
SPC WW 241716
KYZ000-NCZ000-TNZ000-VAZ000-250000-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 264
NWS Storm Prediction Center Norman OK
115 PM EDT Wed May 24 2017

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  central and eastern Kentucky
  western North Carolina
  eastern Tennessee
  southwestern Virginia

* Effective this Wednesday afternoon and evening from 115 PM
  until 800 PM EDT.

* Primary threats include...
  A couple tornadoes possible
  Isolated damaging wind gusts to 70 mph possible
  Isolated large hail events to 1.5 inches in diameter possible

SUMMARY...Thunderstorms now forming near an upper disturbance over
northern middle Tennessee are expected to increase in coverage and
intensity through the remainder of the afternoon, while developing
northeastward and eastward across the watch area.  Large hail and
locally damaging wind gusts will be possible in strongest storms,
along with a risk for tornadoes.

The tornado watch area is approximately along and 105 statute miles
north and south of a line from 40 miles west northwest of Crossville
TN to 40 miles southeast of Jackson KY. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU4).

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 261...WW 262...WW 263...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 24025.

...Kerr

Tornado Watches in Kentucky, 2017Tornado Watches in Tennessee, 2017Tornado Watches in Virginia, 2017Every tornado watch in 2017

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.