Tornado Watch 621

Issued

Aug 9, 2023, 8:06 PM CDT (01:06 UTC)

Expired

Aug 10, 2023, 3:00 AM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

65 kt

The Little Rock radar (KLZK), 69 km from the middle of the area, began a volume at 01:06 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

60%

One or more gusts of 65 knots or more

50%

Ten or more severe hail reports

60%

One or more hailstones of 2 inches or more

50%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 1923 Tornado watch 618Aug 9, 6:10 PM CDT
• Mesoscale Discussion 1926 Tornado watch 618Aug 9, 7:58 PM CDT
• Mesoscale Discussion 1927 Tornado watch 621Aug 9, 9:13 PM CDT

320 
WWUS20 KWNS 100102
SEL1  
SPC WW 100102
ARZ000-100800-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 621
NWS Storm Prediction Center Norman OK
805 PM CDT Wed Aug 9 2023

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Nothern and central Arkansas

* Effective this Wednesday night and Thursday morning from 805 PM
  until 300 AM CDT.

* Primary threats include...
  A couple tornadoes possible
  Scattered damaging winds likely with isolated significant gusts
    to 75 mph possible
  Scattered large hail likely with isolated very large hail events
    to 2 inches in diameter possible

SUMMARY...A band of storms will continue to develop
east-southeastward from Missouri into northern Arkansas, and
additional development is possible farther to the south.  The storm
environment will favor both supercells and bowing segments capable
of producing damaging winds, large hail, and a couple of tornadoes.

The tornado watch area is approximately along and 60 statute miles
north and south of a line from 35 miles south of Walnut Ridge AR to
25 miles south of Fayetteville AR. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU1).

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 617...WW 618...WW
619...WW 620...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 600. Mean
storm motion vector 29030.

...Thompson

Tornado Watches in Arkansas, 2023Every tornado watch in 2023

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.