Tornado Watch 46

Issued

Mar 12, 2020, 11:44 AM CDT (16:44 UTC)

Expired

Mar 12, 2020, 6:00 PM CDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Paducah radar (KPAH), 50 km from the middle of the area, began a volume at 16:48 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

70%

One or more EF2 to EF5 tornadoes

40%

Ten or more severe wind reports

60%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

50%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 169Mar 12, 11:13 AM CDT
• Mesoscale Discussion 170Mar 12, 1:28 PM CDT
• Mesoscale Discussion 171Mar 12, 2:31 PM CDT
• Mesoscale Discussion 172Mar 12, 3:20 PM CDT
• Mesoscale Discussion 173Mar 12, 5:51 PM CDT

455 
WWUS20 KWNS 121641
SEL6  
SPC WW 121641
ILZ000-INZ000-KYZ000-MOZ000-TNZ000-122200-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 46
NWS Storm Prediction Center Norman OK
1145 AM CDT Thu Mar 12 2020

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Southern Illinois
  Southern Indiana
  Western and Central Kentucky
  Southeast Missouri
  Northwest and North Central Tennessee

* Effective this Thursday morning and afternoon from 1145 AM
  until 500 PM CDT.

* Primary threats include...
  A few tornadoes likely with a couple intense tornadoes possible
  Scattered damaging wind gusts to 70 mph likely
  Scattered large hail and isolated very large hail events to 2
    inches in diameter possible

SUMMARY...Multiple clusters of thunderstorms will track across the
watch area this afternoon, with a few supercell storms expected to
develop.  Strengthening winds aloft will pose a risk of a tornadoes,
possibly strong.  Hail and damaging winds are also possible with the
strongest storms.

The tornado watch area is approximately along and 75 statute miles
north and south of a line from 25 miles west southwest of Cape
Girardeau MO to 35 miles northeast of Bowling Green KY. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU6).

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.

&&

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 26035.

...Hart

Tornado Watches in Kentucky, 2020Tornado Watches in Illinois, 2020Tornado Watches in Tennessee, 2020Every tornado watch in 2020

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.