Officials at Plumpton are "very hopeful" of racing on Monday despite calling a precautionary inspection for 8am.
Temperatures dipping overnight to minus 1C are not expected to present a problem but the potential for some snow means a cautious clerk of the course Mark Cornford will check conditions in the morning.
He said: "We've not got any problems today and I'm hopeful there will be none tomorrow, but I don't want to get here in the morning to find we have and I haven't flagged it up to people.
"I'm very hopeful there won't be a problem, it (snow) looks more of a threat later tomorrow afternoon into tomorrow night from the charts I've seen.
"We should, all things being equal, be OK."
Update:
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