Tornado Watch 294

Issued

Jul 20, 2018, 6:22 PM CDT (23:22 UTC)

Expired

Jul 21, 2018, 2:00 AM CDT

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

3 in

Strongest gust expected

60 kt

The Paducah radar (KPAH), 79 km from the middle of the area, began a volume at 23:22 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

90%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

80%

One or more hailstones of 2 inches or more

60%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 1103Jul 20, 2:43 PM CDT
• Mesoscale Discussion 1107Jul 20, 5:37 PM CDT
• Mesoscale Discussion 1108Jul 20, 5:54 PM CDT
• Mesoscale Discussion 1109Jul 20, 6:24 PM CDT
• Mesoscale Discussion 1111Jul 20, 9:52 PM CDT
• Mesoscale Discussion 1112Jul 20, 10:20 PM CDT
• Mesoscale Discussion 1113Jul 21, 1:38 AM CDT

679 
WWUS20 KWNS 202319
SEL4  
SPC WW 202319
ALZ000-ARZ000-ILZ000-INZ000-KYZ000-MOZ000-MSZ000-TNZ000-210700-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 294
NWS Storm Prediction Center Norman OK
620 PM CDT Fri Jul 20 2018

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  northern Alabama
  eastern Arkansas
  southern Illinois
  southern Indiana
  western and central Kentucky
  far southeast Missouri
  northern Mississippi
  western and middle Tennessee

* Effective this Friday night and Saturday morning from 620 PM
  until 200 AM CDT.

* Primary threats include...
  A few tornadoes possible
  Widespread large hail and isolated very large hail events to 3
    inches in diameter likely
  Widespread damaging wind gusts to 70 mph likely

SUMMARY...Storms are ongoing across portions of southeast Missouri
and vicinity, and also across the central and eastern Kentucky
vicinity.  Expect storms to expand in coverage over the next couple
of hours, to include large portions of western Kentucky and western
and middle Tennessee.  Storms will spread southeastward with time,
into portions of northern Mississippi/northern Alabama, accompanied
by potential for large hail, damaging winds, and a few tornadoes
through the evening hours.

The tornado watch area is approximately along and 130 statute miles
north and south of a line from 35 miles west northwest of Dyersburg
TN to 65 miles east of Nashville TN. 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 289...WW 292...WW 293...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 3 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 600. Mean
storm motion vector 29040.

...Goss

Tornado Watches in Kentucky, 2018Tornado Watches in Tennessee, 2018Tornado Watches in Mississippi, 2018Every tornado watch in 2018

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.