An estimated 3,000 firefighters in Yorkshire will be among those taking part in four hours of strike action today (Wednesday September 25).
The industrial action will mean all fire crews across the region will be running at reduced staff engines, many relying on trained lorry drivers, volunteers and airport firefighters.
The strike, which has been called due to a dispute over petitions and working conditions, will take place between noon and 4pm.
In South Yorkshire there will be 72 staff available, including volunteers, and eight engines on duty compared with the usual 27.
South Yorkshire Fire & Rescue is asking for help from the local community to keep calls low.
Chief fire officer Jamie Courtney, said: “Whilst the industrial action is ongoing we will still be responding to 999 calls, but we are asking people to only call 999 if they really do need a fire engine.
“Our priority will be to respond to priority calls where a life may be at risk or someone needs to be rescued. If we respond to non-emergency calls then those most in need could be at risk.”
Humberside Fire and Rescue Service’s chief fire officer Richard Hannigan said: “We do find ourselves in an unusual situation where we must prioritise our calls for those who are most in need of our assistance. However, I must emphasise that you should still call 999 in an emergency so that an experienced Control room operator can deal with your situation. You must not try and call your local fire station directly.”