From Longman Dictionary of Contemporary Englishstreak of lightning/fire/light etcstreak of lightning/fire/light etcHEMa long straight flash of lightning, fire etc → streak
Examples from the Corpus
streak of lightning/fire/light etc• Sometimes there is hope, a streak of light, a blur on a piece of film.• A streak of lightning split the sky.• There was another streak of lightning overhead.• The three women were wreaking havoc with their guns that fired streaks of light. 