Tulimyrsky (Firestorm) is the first EP released by Finnish folk metal band Moonsorrow.

Over an hour in length, the release contains one new song, two covers and two re-recorded tracks from the band's early demos.

The title track is divided into nine "chapters" in the lyric sheet, which do not always correspond with the sequence of progression between musical themes.

The remake of "Taistelu Pohjolasta" does not incorporate the opening section of the original piece (which appeared on Tämä ikuinen talvi); thus, the only movements incorporated are "Punaisen lumen valtakunta" and "Jäisten järvien kimalteessa."

The remake of "Hvergelmir," however, does include the coda "Elivagar (Pakanavedet)," accompanied by a spoken monologue in Swedish that does not appear in the original.