Tornado Watch 47

Issued

Mar 12, 2020, 3:44 PM CDT (20:44 UTC)

Expired

Mar 12, 2020, 11:00 PM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Little Rock radar (KLZK), 75 km from the middle of the area, began a volume at 20:45 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

60%

One or more EF2 to EF5 tornadoes

40%

Ten or more severe wind reports

70%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

90%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 170Mar 12, 1:28 PM CDT
• Mesoscale Discussion 171Mar 12, 2:31 PM CDT
• Mesoscale Discussion 173Mar 12, 5:51 PM CDT
• Mesoscale Discussion 176Mar 12, 9:23 PM CDT

184 
WWUS20 KWNS 122042
SEL7  
SPC WW 122042
ARZ000-ILZ000-KYZ000-MOZ000-OKZ000-TNZ000-130400-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 47
NWS Storm Prediction Center Norman OK
345 PM CDT Thu Mar 12 2020

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Northern and Central Arkansas
  Southern Illinois
  Western Kentucky
  Southeast Missouri
  Southeast Oklahoma
  Northwest Tennessee

* Effective this Thursday afternoon and evening from 345 PM until
  1100 PM CDT.

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

SUMMARY...Thunderstorms are expected to form along a cold front over
Arkansas and southern Missouri, then track eastward across the watch
area.  Intense storms capable of large hail and damaging winds are
expected.  A few tornadoes are also possible with any supercells
that form.

The tornado watch area is approximately along and 80 statute miles
east and west of a line from 40 miles southwest of Hot Springs AR to
35 miles north northeast of Cape Girardeau MO. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU7).

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 46...

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 500. Mean
storm motion vector 28035.

...Hart

Tornado Watches in Arkansas, 2020Tornado Watches in Missouri, 2020Tornado Watches in Illinois, 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.