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."
19 September 2014Simcock aims high with star duo
Bolster back on Gold trail
Glorious bids to protect Legacy
Fahey chasing Newmarket Millions
Time called on Dude career
Makin off to a flyer at Ayr
Festival stalwart Celestial retired
Guest banking on Memory at Ayr
Dettori sweet on World rule
Baraweez on track for Ascot
Maguire raring to go
Watchable handed low Gold draw
Palmer mulls Aktabantay options
Bronze seeking Newmarket gold
18 September 2014Breathing operation for Cue Card
Early conclusion to Levy agreement
Johnson Houghton hearing date set
Walker looks to future with Moon
Red-hot Kirby in Sandown treble
Listed honours for Hadaatha
Busy bags another National
Botti lines up Newmarket raid
Vintage performance from Weld filly
Cup dreams in mind for Forever
Weld prepares Newmarket challenge
McGrath and Walton charged by BHA
Encke camp ponder next move
17 September 2014Street Cry dies, aged 16
Luck be a Lady in Cheveley Park
Appleby won't Abandon hope
Glenalmond disrupted by setback
Judgement day looms for Benoist
Toocool in Mill Reef frame
Time out for Panama
Adelaide backed to shine in Plate
Ascot to offer Irish incentive
Ryan advises caution on Gatsby run
Goodwood work forces race changes
Cosgrave hits out at ERA decision
Twilight takes Thirsk triumph
Ayr hero Ramius set to retire
Sea The Moon forced to retire
Lantern shines in morning spin
Simcock maps out plan for star pair
Max powered up for Abbaye
16 September 2014O'Meara waits on Watchable call
Arc an option for classy Dolniya
Smurfer seeking National glory
Cosgrave put on ERA forfeit list
Belardo remains on road to Dewhurst
Cullen leads tributes to Brady
QEII beckons for Tonto
Murtagh cool on Royal Cup raid
Murtagh salutes Champions Weekend
Weighty issue for Ed's Red
Weighty issue for Ed's Red
Malabar earmarked for Boussac
Ivanhowe Arc ride in demand
Groove on for Cesarewitch bid
All-weather finals day on Channel 4
Watchable leads Gold Cup contenders
Limato leads Reef contenders
Toast confirmed for Classic chance
Classic hopes for Connection
Estimate to skip Melbourne trip
Rizeena set to race on