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.
Clerk of the course Mark Cornford said: "The rain has been falling for longer than I expected. I just need a few dry hours to get rid of the surface water. The ground is raceable and hopefully it will stay dry so I can make an early decision, but if it keeps raining I might have to make the decision the other way."
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 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.
"Monday 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 after we see what tonight brings."
Irish racing continues to struggle and Sunday's fixture at Naas was called off due to waterlogging, which has also claimed Down Royal on Tuesday.
8 December 2013Bright start for New Dawn
Twin lights up Hilly Way
Twin lights up Hilly Way
Durkan stroll for Arvika
Unioniste has Lexus aim
New One heading to International
Drowne in hospital after fall
Baby in running for Warwick
Moore sets sights on Kempton
Ex-Oxx ace Mofeed lifts Cup
Cloud and Lantern sunk in Mile
Kanaloa sizzles in Sprint
Dominant shocks The Fugue in Vase
Turner back in business
Faugheen in impressive strike
Flemenstar out of John Durkan
Unioniste claims Listed prize
Grugy great in Tingle Creek
V for victory for Henderson
Chance best in Becher thriller
Hinterland reigns in Henry VIII
Mullins strikes with Gitane
7 December 2013V for victory for Henderson
Twinlight out to show the Way
Wyck primed for big Aintree run
Dandino and Rock miss Vase run
Bec puzzler for Lavelle
Moore's Vino is vintage stuff
Mullins sets sights on Navan
Captain taking charge for Henderson
George plots Aintree gold rush
King out to reign in Henry VIII
Newcastle in talks over AW track
Sir champing at bit for Durkan date
Baby on board for Becher
6 December 2013Carberry sidelined for weekend
Dunaden 'back to his best'
Glance sights fixed on Cup glory
Strawbridge coy over Cloud future
Sire out to profit from Sacre blow
Queen awarded ROA honour
Three-month ban for Arnold
Contrite Butler must 'rebuild life'
Nicholls watching ground for Roque
Topper tests Future waters
Murphy hit by nine-day ban
Big field for Becher
Sacre forced out of Sandown return
Cadeaux team enjoying the ride
Lantern burning bright once more
5 December 2013Rasen survives wind scare
Festival switch for Mares' race
Sacre out of Tingle Creek
No luck for Jwala in Sprint draw
Aigles well ahead of fourth Cup bid
Rasen to check on wind
Butler considers ban response
Court team eyeing Huntingdon return
Oscar on course for Cheltenham
Cantlow in Cheltenham frame
Juddmonte "not for sale"
Noseda content with Grand journey
Cloud future hinges on Mile outcome
Road charts route towards Becher
Knight backs Somersby to shine