The Yorkshire Ambulance Service made the call because of the extreme weather conditions and a high volume of 999 calls.
The county ambulance is asking the public to only call if there is a serious or life-threatening emergency.
Such is the severe impact of the snow in the region, vaccinations have also been affected.
A centre in Barnsley was forced to close with patients being asked to wait for new appointments.
Testing centre in Kirklees and Bradford have also suspended operations today due to the conditions.
While the country has been struggling with the spread of the virus, the weather conditions have severely affected the work of ambulance and healthcare staff.
The Met Office has issued three yellow weather warnings for snow and ice over the next three days.
These hazardous conditions are therefore making much harder for ambulance crews to reach patients.
Mark Millins, strategic commander at the trust, said: “Due to the very snowy conditions across West, South and North Yorkshire, driving conditions are very difficult and many roads are gridlocked so this is having a severe impact on our operations.
“We are asking members of the public to only call us in a serious or life-threatening emergency to help us focus our efforts on our most poorly patients.
“Our dedicated staff are working extremely hard to reach patients as quickly and safely as possible but, understandably, the hazardous driving conditions and blocked roads mean that it is taking us longer than normal in the worst-hit areas.
“Please take extra care when out driving or walking and, where possible, avoid travelling at all in snowy or icy conditions.
“If you do have to go out, ensure that you wear appropriate footwear and warm clothing. Also, please stay in touch with elderly and vulnerable relatives and neighbours to ensure they are safe and well.”
More to follow…
