Yes, that’s right.
Note: By tonight I meant tonight and tomorrow morning, because it’s more than just tonight.
For the snowfall total, it’s somewhere between 2 and 6 centimetres, with it most likely landing around 4. The snowfall is looking like it’ll start around midnight tonight with actually a risk of freezing rain, and maybe even some rain before that in the evening. It’s probably going to be very continuous snow all the way through sometime tomorrow morning. It’s probably going to get more and more scattered, before finally tapering off mid to late in the afternoon.
The rain, then possible freezing rain, then snow and temperatures below 0 will probably not be a very fun mixture of conditions tomorrow morning. So, watch out. It may be a little treacherous!