WW 215 TORNADO IA NE SD 121810Z – 130200Z
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 215 NWS Storm Prediction Center Norman OK 110 PM CDT Fri May 12 2023 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Far Western Iowa Central and Eastern Nebraska South-Central South Dakota * Effective this Friday afternoon and evening from 110 PM until 900 PM CDT. * Primary threats include... A couple tornadoes possible Scattered large hail and isolated very large hail events to 2 inches in diameter likely Scattered damaging wind gusts to 70 mph possible SUMMARY...Thunderstorms are expected to develop across portions of the central Plains this afternoon. Environmental conditions will support strong to severe thunderstorms, including some supercells capable of tornadoes and very large hail (i.e. greater than 2 inches in diameter). The tornado watch area is approximately along and 70 statute miles north and south of a line from 40 miles north northwest of Ainsworth NE to 40 miles northeast of Shenandoah IA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). 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. && AVIATION...Tornadoes and 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 19025. ...Mosier