Caerphilly County Borough is bracing itself for heavy snow on Tuesday and Wednesday.
The Met Office has issued an early warning for heavy snow across much of south and mid Wales.
It has warned that between 10 and 15cm of snow is likely over wide areas with 25cm or more on hills.
The snowfall is expected to drift in strong easterly winds.
There are fears the cold weather will cause huge transport disruption and cause problems for power supplies.
The Welsh Assembly Government has said plans were in place ready to keep roads open in any extreme weather.
A spokeswoman said: “The assembly currently holds enough stocks to last approximately one and half years at normal salting levels on its roads.
“Hence, approximately half its stock can be used as a reserve for other authorities should the need arise.
“We have contingency plans in place in the event of extreme weather to ensure the main roads are kept open and also have encouraged unitary authorities to put in place mutual aid arrangements.
“Discussions with unitary authorities in Wales indicate that nearly all have increased their stock levels from last year and many have filled their salt barns to capacity.”
Caerphilly County Borough Council’s emergency out of hours telephone line: 01443 875500