Firefighters will hold a five hour strike today.
They will walk out from 7pm tonight until midnight as their dispute with the government over changes to their pensions continues.
Members of the Fire Brigades Union will strike again between 6.30pm on New Year’s Eve and 12.30am on January 1.
They are opposed to plans to raise the retirement age from 55 to 60 and increase pension contributions.
Matt Wrack, FBU general secretary, said: “Firefighters provide a first-class standard of service 24 hours a day, 365 days a year, and these strikes will remind government just how reliant they are on our members’ professionalism, commitment and flexibility.”
FBU members have also voted to withdraw their goodwill and members working in control centres have refused to work voluntary overtime between 7pm on Friday, December 27, and 7pm on Sunday, December 29.
And a further strike has been planned for between 6.30am and 8.30am on Friday, January 3.
Dave Walton, assistant chief officer, said: “We wish to make it clear that the contingency plans mean that the resources we have available are spread more thinly across West Yorkshire and therefore we ask the public to help us to help them through preventing emergencies occurring.”