Offaly County Council say people heading out and getting stranded on the roads are impeding their treatment efforts.
"Our focus today has been on the ploughing of the Priority 1 routes. We have made very good progress this afternoon in that most of the Priority 1 network is ploughed," the council told us.
"Again to reiterate, whilst these routes may be passable, they are only passable with extreme caution and with temperatures set to plummet and more snow forecast overnight, this can change at very short notice. Advice remains not to travel unless in a medical emergency."
They went on to say that, "roads should be kept free for emergency services and to allow us to continue operations."
"People who are attempting to drive are significantly hampering our treatment efforts and slowing down and obstructing our ploughing."
"Sub zero temperatures tonight are resulting in us having to undertake two salting treatment runs. These will be undertaken on Priority 1 routes only for safety reasons as they will be carried out in darkness."
At first light tomorrow morning, OCC will be commencing operations on the Priority 2 and Priority 3 network which are currently impassable.
"Communities along these routes have aided our efforts considerably due to their snow clearing efforts today and we want to thank them for their efforts," the council said.
The Defence Forces will be assisting council efforts tomorrow in towns to clear snow from footpaths.
For those concerned about the effects of a potential thaw please take a look at www.winterready.ie for preventative tips.