Severe Thunderstorm Watch 24

Issued

Mar 17, 2021, 1:54 AM CDT (06:54 UTC)

Expired

Mar 17, 2021, 8:00 AM CDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Tulsa radar (KINX), 131 km from the middle of the area, began a volume at 06:56 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

2%

Ten or more severe wind reports

40%

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

40%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 189 Severe potential...watch likelyMar 17, 12:45 AM CDT
• Mesoscale Discussion 195 Severe thunderstorm watch 24Mar 17, 5:18 AM CDT

473 
WWUS20 KWNS 170652
SEL4  
SPC WW 170652
KSZ000-MOZ000-OKZ000-171300-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 24
NWS Storm Prediction Center Norman OK
155 AM CDT Wed Mar 17 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Southeast Kansas
  Southwest Missouri
  Northeast Oklahoma

* Effective this Wednesday morning from 155 AM until 800 AM CDT.

* Primary threats include...
  Scattered large hail and isolated very large hail events to 2
    inches in diameter possible
  Scattered damaging wind gusts to 70 mph possible
  A tornado or two possible

SUMMARY...Clusters of severe storms, some with supercell and/or
bowing structures, will continue to spread east-northeastward from
northern Oklahoma toward northeast Oklahoma, southeast Kansas, and
southwest Missouri through the early morning hours.  Large hail can
be expected with the stronger storms, as well as occasional damaging
gusts.  An isolated tornado cannot be ruled out later this morning
in northeast Oklahoma.

The severe thunderstorm watch area is approximately along and 75
statute miles north and south of a line from 5 miles north of Ponca
City OK to 45 miles northeast of Joplin MO. 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 22...WW 23...

AVIATION...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
24035.

...Thompson

Severe Thunderstorm Watches in Kansas, 2021Severe Thunderstorm Watches in Missouri, 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.