While the version of the battle in which a divine wind defeated the pagan enemies of Theodosius became popular in late antiquity, modern historians, most notably Alan Cameron, have disputed the reliability of this version of events.
In addition, the earliest source to mention the decisive bora wind was Ambrose of Milan, but he states in his sermon on Psalm 36 that the wind blew before that battle, and demoralized Theodosius' enemy before any fighting began.