The Met Office has issued Red, Amber, and Yellow Weather Warnings for the vast majority of Wales with expectations that there will be damaging winds and heavy rain, causing significant disruption and danger to life.
The decision to postpone fixtures has therefore been made in the interests of safety for our clubs, officials, players and spectators.
All League fixtures are to be rescheduled for an available date, with National Cup fixtures scheduled for this weekend now being rearranged for Saturday 14 December.
For fixtures scheduled on Friday 6 December and Sunday 8 December, clubs are advised to only proceed should they feel it is safe to do so.
For clarity, the postponement and safety advice also applies to Super Rygbi Cymru Round 10 fixtures, which will now be rescheduled.