Haydock could start their two-day meeting on Friday with heavy in the going description should the anticipated rain fall.
The ground at the Merseyside venue was soft on Thursday afternoon but as much as 12 millimetres of rain was forecast before the morning.
Should that be the case then clerk of the course Kirkland Tellwright expects conditions to have deteriorated slightly ahead of Friday's card.
He said: "The rain did begin to come late afternoon and we might get as much as 12 millimetres. If we do get that much I guess the word heavy will be mentioned in the going description.
"Friday we have been told to expect three millimetres of rain, then it's dry on Saturday."
The meeting at Towcester on Sunday is subject to a precautionary 8.30am inspection on Friday.
While the going is described as good to soft, soft in places, there are areas of standing water.
Clerk of the course Robert Bellamy said: "We've been dry but we had 19 millimetres of rain on Wednesday and have standing water in places.
"The forecast is pretty horrendous and it doesn't look good at this stage, but we'll reassess things and see where we are."
28 July 2014Quick picks off Galway rivals
Lion could roar in Champion Stakes
Time out for Carpenter
Beckett considers Gesture gameplan
PJA hits out at ERA Cosgrave case
Pitt ponders Sir Stewards' run
Bird in full flight for Nassau
Chopin team wait on softer ground
Beacon leads Hannon trio
Toormore on Goodwood mission
Options open for Approval
Star duo head Sussex field
Pallasator states case for Ebor
Custom a cut above
Harty doubles up in Galway feature
Munich Mission impossible
Jinx on a high in France
Cox plays it cool with Kodi
Girl given Lowther target
Burke looking to Curragh
Hanagan hails Taghrooda
Toormore drops in class for Lennox
27 July 2014Beacon shines over Molecomb rivals
Miss skips Galway for Goodwood
Tag crowned queen of Ascot
Muthmir delivers in Dash
Metal proves International star
Sheikh pounces for late score
Kingman poised for showdown
Kleo hits top gear for Cumani
Dettori strikes on Osaila
Bear grills Winkfield rivals
Yorkshire Oaks target for Volume
26 July 2014Taghrooda queen of Ascot
Elleval bids for Pomfret prize
Noble primed for German mission
O'Meara duo going International
Tag team happy to have a go
Telescope reaches for stars
Euro chasing dollar signs
Estimate given Goodwood entry
Pique Sous out for season
Secret chasing York success
Reason aiming to deliver in Dash
Remote on comeback trail
25 July 2014Hughes misses Newmarket rides
Bill seeks International acclaim
Tag team have a crack at George
Telescope has record in sights
Nicholls pays tribute to Business
Flintshire misses George date
Hills reveals positive test horse
Kennedy floored on Leopardstown bow
Candy sweet on hot-shot Alonsoa
Big guns in Irish Champion frame
Farraaj sidesteps York return
Classy entries for Champagne
Stars align for Sussex showdown
Kiyoshi dips in grade for Valiant
Gosden waits on Eagle call
Horsted heads International runners