Kempton's meeting on Saturday afternoon is in doubt after officials called a 7.30am inspection.
The all-weather circuit at the Sunbury venue is currently covered in snow.
Clerk of the course Barney Clifford, who is currently in France, is not optimistic of the fixture beating the elements.
Clifford said: "They've had three inches of snow, it's still snowing and there is more snow forecast.
"The course is not raceable now and we'll just have to see what they can achieve.
"It is not just about the track, there is the infrastructure and everything else to consider.
"They will inspect at 7.30am and they'll know what can be achieved by then."