Blessingbourne Estate, Davagh Forest and Rostrevor Mountain Bike Trails have now reopened following the storm.
Barnett Demesne and Castlewellan Mountain Bike Trails are closed to the public whilst tree clearing is carried out.
Keep an eye on MountainBikeNI Facebook and Twitter for up to date information on when the trails have been reopened.
Please also be aware that there may be significant debris on the trails when reopened.