A top-notch second half performance saw Tynedale claim maximum points.
The match only went ahead after a 7.30am pitch inspection and players had to cope with a slippery surface over still frozen ground.
It took Tynedale less than a minute to go ahead when Alex Dryden touched down after a handling move which began in their own half.

The rest of the half belonged to Lymm with astute kicking pinning Tynedale back. Ben Simpson equalised from a lineout, before a Tom Shard penalty put the visitors ahead.
Patrick Jennings extended the lead with a well-taken try in the corner before Harry Martin went in from a lineout. Tynedale came back with a late try from Josh Leslie following a Joe Beaty break, but Lymm led 18-10 at the interval.

A powerful drive from a lineout saw Henry Wainwright blast over for Tynedale two minutes into the second half before both Dryden and Leslie grabbed their second tries as Tynedale dominated.
A well-judged cross kick from Leslie brought Tynedale's sixth try from Jacob Oliver with ten minutes remaining.