SPC Severe Thunderstorm Watch 200



WW 200 SEVERE TSTM KS OK TX 220250Z – 221100Z

WW 0200 Image

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 200
NWS Storm Prediction Center Norman OK
950 PM CDT Thu May 21 2020

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Southwest and south central Kansas
  Northwest and north central Oklahoma and the eastern Oklahoma
Panhandle
  The extreme northeast Texas Panhandle

* Effective this Thursday night and Friday morning from 950 PM
  until 600 AM CDT.

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

SUMMARY...Supercell cluster over southwest Kansas is growing upscale
through storm mergers into a larger convective system.  The initial
supercell interactions could pose a threat for large hail and
perhaps a tornado through about 04z.  Damaging winds will become
more of a threat as the cold pool becomes more established and
storms develop east-southeastward toward northwest Oklahoma
overnight.

The severe thunderstorm watch area is approximately along and 75
statute miles north and south of a line from 30 miles north of
Liberal KS to 40 miles north northeast of Enid OK. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU0).

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 198...WW 199...

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 550. Mean storm motion vector
30025.

...Thompson

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