Navan and Thurles inspect
Adverse overnight weather forecasts have prompted officials at Navan and Thurles to call inspections for Sunday's meetings at 7.30am.
Racing took place at Navan on Saturday despite the course being covered in a light dusting of snow and should the fixture go ahead, there will be a fresh hurdles and bumper course in use.
The hurdles course at Thurles is currently fit for racing, with the ground described as yielding to soft, but the chase course remains unfit due to frost. An eight-race card is scheduled to start at 12.05.
Heavy snow at Kempton has led to the abandonment of Sunday's all-weather fixture.
Clerk of the course Brian Clifford had serious concerns about the surrounding areas, and believed the situation would be "insurmountable" given time constraints for the afternoon meeting.
He said: "We've had eight to 10 centimetres of snow and, taking everything into account, we have decided to abandon.
"Given the forecast, there is no guarantee the road infrastructure would be passable and getting everyone here safely would be the main concern. It would be an insurmountable job to get it moved."
Looking further ahead to the showpiece King George meeting on Boxing Day, Clifford was able to issue an upbeat bulletin.
He said: "I spoke to John Kettley and temperatures will stay cold until Thursday and Friday. Then into Christmas Day and Boxing Day, we could see 3C on Christmas Day and 4C on Boxing Day.
"We are in a good position. There is no frost underneath the covers and the vulnerable areas I have checked all seem fine. We are still a week away and time is on our side."