Tornado Watch 13

Issued

Mar 9, 2019, 10:32 AM CST (16:32 UTC)

Expired

Mar 9, 2019, 6:53 PM CST

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

60 kt

The Memphis radar (KNQA), 32 km from the middle of the area, began a volume at 16:34 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

80%

One or more EF2 to EF5 tornadoes

50%

Ten or more severe wind reports

60%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

20%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 168Mar 9, 6:58 AM CST
• Mesoscale Discussion 169Mar 9, 9:45 AM CST
• Mesoscale Discussion 170Mar 9, 10:59 AM CST
• Mesoscale Discussion 172Mar 9, 1:27 PM CST
• Mesoscale Discussion 175Mar 9, 4:50 PM CST

720 
WWUS20 KWNS 091629
SEL3  
SPC WW 091629
ARZ000-MOZ000-MSZ000-TNZ000-092300-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 13
NWS Storm Prediction Center Norman OK
1030 AM CST Sat Mar 9 2019

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Eastern Arkansas
  Extreme southern Missouri Bootheel
  Parts of northwestern and northern Mississippi
  Western Tennessee

* Effective this Saturday morning and afternoon from 1030 AM
  until 500 PM CST.

* Primary threats include...
  Several tornadoes likely with a couple intense tornadoes
    possible
  Scattered damaging wind gusts to 70 mph likely
  Scattered large hail events to 1.5 inches in diameter possible

SUMMARY...The line of storms in Arkansas is beginning to show more
embedded supercell structures, and this trend should continue
through the afternoon.  The storm environment ahead of the storms
into Mississippi and Tennessee will be favorable for tornadic
supercells, capable of producing a couple of strong tornadoes, as
well as damaging winds and large hail.

The tornado watch area is approximately along and 70 statute miles
east and west of a line from 35 miles north of Dyersburg TN to 35
miles south southeast of Greenville MS. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU3).

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 11...WW 12...

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 26050.

...Thompson

Tornado Watches in Mississippi, 2019Tornado Watches in Arkansas, 2019Tornado Watches in Tennessee, 2019Every tornado watch in 2019

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.