Donegal County Council have said that select routes will be gritted from 9pm Wednesday and again from 6am Thursday morning.
People have been urged to assume no road is ice free.
The Routes:
01: National Primary North
02: National Primary Central
03: National Primary South
04: Inishowen South
05: Inishowen East
06: Inishowen West
07: Milford South
08: Milford North
09: Cill Ulta East
12: Binswilly
13: Stranorlar North
14: Stranorlar East
15: Stranorlar West
18: Donegal South
LT: Letterkenny Town
