Tout Est Permis, left© Photo Healy Racing
Navan is now Soft following 5mm of rain and a mainly dry day is expected.
The first of eight races is due off at 11.30am.
A couple of bookmakers are reporting early support for Tout Est Permis in the Grade B eCOMM Merchant Solutions Handicap Hurdle at 1.08pm.
Noel Meade 's charge was last seen finishing third in the Grade One Ladbrokes Champion Steeplechase in Down Royal at the end of October.
His last race over flights saw him come home third in the Grade 3 Pertemps Network Final Handicap Hurdle at the Cheltenham Festival in March.
The ground at Cork remains Soft to Heavy, Heavy in places after a further 2mm of rain. Tomorrow's card gets under way at 11.45am and there is a mainly dry forecast prior to racing.