Ascot's clerk of the course Chris Stickels said: "There is a reasonable chance of the meeting going ahead, providing that the frost covers we have put down do their job.
"I'm not certain how effective they will be with the conditions that are predicted. We are going to get a very cold snap. We've put covers on before and they have worked but we just have to keep our fingers crossed."
The money continues to come in for Harry Tricker, who was beaten two lengths by Khyber Kim in the Greatwood Handicap Hurdle at Cheltenham last month. He is as short as 5-1 with Sky Bet for the two-mile Listed hurdle, having been an 8-1 shot on Monday's declaration stage.
Trainer Moore said: "It is so far so good with him and we're hopeful the meeting goes ahead. He's got a great chance."