

074 

WWUS20 KWNS 180232

SEL7

SPC WW 180232

OKZ000-181000-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 347

NWS Storm Prediction Center Norman OK

935 PM CDT Sat Jun 17 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northern Oklahoma



* Effective this Saturday night and Sunday morning from 935 PM

  until 500 AM CDT.



* Primary threats include...

  Isolated very large hail events to 2.5 inches in diameter

    possible

  Isolated damaging wind gusts to 70 mph possible



SUMMARY...Relatively isolated severe thunderstorms, including a few

supercells, ongoing across southern Kansas will continue to slowly

spread south-southeastward into northern Oklahoma through the late

evening and overnight hours. Isolated instances of large hail are

possible and localized severe-caliber winds are a possibility.



The severe thunderstorm watch area is approximately along and 25

statute miles north and south of a line from 25 miles north

northwest of Gage OK to 15 miles east southeast of Ponca City OK.

For a complete depiction of the watch see the associated watch

outline update (WOUS64 KWNS WOU7).



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 345...WW 346...



AVIATION...A few severe thunderstorms with hail surface and aloft to

2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A

few cumulonimbi with maximum tops to 600. Mean storm motion vector

30025.



...Guyer

