Severe Thunderstorm Watch 84

Issued

Apr 9, 2021, 8:44 PM CDT (01:44 UTC)

Expired

Apr 10, 2021, 2:00 AM CDT

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

70 kt

The Western Arkansas radar (KSRX), 82 km from the middle of the area, began a volume at 01:43 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

20%

One or more EF2 to EF5 tornadoes

10%

Ten or more severe wind reports

70%

One or more gusts of 65 knots or more

60%

Ten or more severe hail reports

30%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 352 Severe thunderstorm watch 81Apr 9, 6:34 PM CDT
• Mesoscale Discussion 355 Severe thunderstorm watch 82...83...84Apr 9, 10:47 PM CDT

612 
WWUS20 KWNS 100142
SEL4  
SPC WW 100142
ARZ000-OKZ000-TXZ000-100700-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 84
NWS Storm Prediction Center Norman OK
845 PM CDT Fri Apr 9 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Western Arkansas
  Far southeast Oklahoma
  Northeast Texas

* Effective this Friday night and Saturday morning from 845 PM
  until 200 AM CDT.

* Primary threats include...
  Scattered damaging winds and isolated significant gusts to 80
    mph likely
  Isolated very large hail events to 2 inches in diameter possible
  A tornado or two possible

SUMMARY...Squall line with embedded bowing structures will likely
spread east-southeast from eastern Oklahoma. Damaging winds will be
the primary hazard.

The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 35 miles east northeast
of Fayetteville AR to 50 miles south southwest of Texarkana AR. For
a complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU4).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for 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. Severe thunderstorms can and occasionally do produce
tornadoes.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 78...WW 80...WW 81...WW
82...WW 83...

AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
30040.

...Grams

Severe Thunderstorm Watches in Arkansas, 2021Severe Thunderstorm Watches in Texas, 2021Severe Thunderstorm Watches in Oklahoma, 2021Every severe thunderstorm watch in 2021

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.