Monday's National Hunt meetings at Plumpton and Catterick are both subject to inspections at 8am on raceday morning.
Officials at Plumpton decided to take a look after 12 millimetres of rain had been recorded by 2.30pm on Sunday on top of five millimetres overnight at the East Sussex venue.
The going on the hurdles course is described as soft, heavy in places, with the chase course soft.
The potential problem at Catterick is snow. It is likely to fall on higher ground and miss the North Yorkshire track, but clerk of the course Fiona Needham feels it prudent to have an early check.
She said: "Everything is fine, but we felt it safe to call a precautionary in the morning because of the potential threat of snow. The forecasters think it is more likely to fall just on higher ground, but they are not 100% sure, so we had better check.
"Hopefully we will arrive first thing in the morning to find we don't need an inspection."
Meanwhile a contingency plan to stage an all-chase and bumper card at Lingfield on Tuesday is to be implemented after the hurdle races were abandoned due to waterlogging.
The fixture will include the three chases already scheduled plus three additional chases and a National Hunt Flat race, which will be run on the all-weather track.
Clerk of the course Neil Mackenzie Ross said: "We've had steady rain all day. At 2pm we'd had just over five millimetres and it's still continuing to rain. The hurdle course is waterlogged, which was expected with any rain, but hopefully we will be able to race on the chase course, all being well.
"Tomorrow is relatively dry with possibly the odd rogue shower, but there's certainly some snow around in the forecast tonight and it's been a wet day, so we will be in a better position to assess things tomorrow after we see what tonight brings."
30 September 2014Power primed to storm Abbaye
Creepy excels on chasing bow
Al Kazeem given Arc go-ahead
Buick makes Ivanhowe Arc link
Power heads Abbaye market
Martin keen on Clonard
Cirrus heads Longchamp billing
Elite aim for Irving
Ribbons run hinges on Paris ground
No fitness worries for Lemaire
Quick on course for Ces date
Beaux plans undecided
Foret-bound Byron enjoys workout
Perfect fencing start for Minstrel
Ted takes Roscommon honours
Rain fillip for Treve Arc challenge
Speed not an issue to River camp
Signal on course to Wow in Paris
Ivawood heads Millions field
Top fillies star in Chariot race
Point primed for Abbaye assignment
29 September 2014Logic ruled out for the season
Ansgar in Foret frame
Kalann team consider Champions bid
Peslier and Mosse hunt Arc mounts
O'Brien trio set for Longchamp
High hopes for Elliott team
Berry takes the rails route
River cruises to Beresford glory
Qualify swoops for O'Brien team
Minstrel ready for chasing bow
Tiggy Abbaye run not set in stone
Angel camp ponder Darley raid
Pineau ripe for new season
Mubtaghaa suited by joy of six
Fiesolana fired up for Foret
28 September 2014Keighley holds Court for Cheltenham
Mart makes Newland's day
Spin does the trick at Ripon
Angel heaven-sent for Tregoning
Tiggy takes Cheveley gold
Lodge proves a stroll in Park
Rosalie blossoms for hat-trick
Naylor seeking Paris prize
Integral on course for Chariot
Dettori anticipating 'vintage' Arc
27 September 2014Fox on prowl for Rasen riches
Educate out to teach lesson
Euro raiders land in Australia
Tributes pour in for Toby Balding
Bans made after McCoy incident
Ground key to Muthmir run
Leather in Ascot picture
Custom proves cut above
Lucida rocks in Rockfel
Etaab delivers in Haggas double
Cosgrave cleared to continue riding
Cumani sees positives in Velox