The surprise swarm of twisters marked the most to hit Illinois during a single December calendar day on record. The Storm Prediction Center had issued a “slight” risk of severe weather that morning, warning that “the development of afternoon thunderstorms in this region seems likely, with [wind] shear… favoring discrete supercell storm structures.” Supercell thunderstorms are the most dangerous form, with rotating updrafts that are the precursor to tornadoes.
https://www.washingtonpost.com/weather/2018/12/03/rare-december-tornado-outbreak-injures-dozens-illinois/?utm_term=.b7056a3b71a6
No comments:
Post a Comment