Yst

Yst (Niwenglisc: tornado) is ā stelan of wind þe swincþ ungemētlice, hit is āssocieged mid an þunorstorm. Yst fint man an eallum landum ac mar micle ystas bleowað on þǣre Geanedan Rice ðon in oðrum landum. On þǣre midde ġeōnd þā land is landscipe se hatte 'Ystlane"

A twistwindstorm on Oclahoma.