SPC Tornado Watch 503

By Newsroom America Feeds at 21 Oct 2017

WW 503 TORNADO OK TX 212000Z - 220300Z
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 503 NWS Storm Prediction Center Norman OK 300 PM CDT Sat Oct 21 2017 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Western and central Oklahoma Northwest Texas * Effective this Saturday afternoon and evening from 300 PM until 1000 PM CDT. * Primary threats include... A couple tornadoes possible Scattered large hail likely with isolated very large hail events to 2.5 inches in diameter possible Scattered damaging wind gusts to 70 mph likely SUMMARY...Thunderstorm development is expected around 4pm, with an increase in storm coverage/intensity into this evening. More isolated supercells with very large hail will be possible initially across western Oklahoma and northwest Texas. Storms will then grow upscale into a more solid squall line by late evening, when damaging winds will become the more common threat. A tornado or two could occur with the initial discrete supercells, as well as later this evening with circulations embedded in the developing line across central Oklahoma. The tornado watch area is approximately along and 60 statute miles east and west of a line from 45 miles west northwest of Ponca City OK to 55 miles southwest of Wichita Falls TX. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU3). 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 502... AVIATION...Tornadoes and 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 500. Mean storm motion vector 24030. ...Thompson Read more



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