The service tweeted at around 7pm last night (November 5) that nearly 30 incidents had already been reported since 5pm.
A large bonfire at the McGarva Way roundabout in Ellesmere Port was left unattended and required crews to use hose reel jets to extinguish it.
Crews were called out to three more bonfires in Ellesmere Port, off Wilmslow Drive, on Sutton Way and on Alnwick Drive.
The Alnwick Drive blaze contained plastics, posing damage to the environment.
Firefighters from Ellesmere Port's Green Watch attended 15 incidents in the space of around 12 hours.
While in Frodsham, firefighters attended a garden bonfire on Overton Close. And a firework went through the window of a ground floor flat on Percival Road in Ellesmere Port shortly before 10.30pm.