LONDON, ONT. -- Here we go again. Environment Canada has issued a snowfall warning for most of Southwestern Ontario.

This includes Middlesex-London, Elgin, Oxford, Lambton, Huron-Perth and Brant.

Anywhere from 15 to 25 centimetres of snow is expected to fall.

John Parsons, division manager of road operations for the City of London, says the city is well prepared for the storm.

‘We have 27 road sanders and salters and they have plows on them, they’re out right now. We have 70 road plows which will be engaged in certain times in the evening. We also have 42 sidewalk machines and they’re all cued up and ready to go as well.”

A first round of the white stuff fell Monday morning.

A second round of even heavier snow is expected to move in Monday evening into Tuesday morning with an additional 10 to 20 cm expected.

Parsons is advising drivers that there is a temporary ban on overnight street parking Monday and Tuesday to clear the roads for plows.

Owner of City Wide Towing, Ian Bondy, says, ‘it’s all hands on deck’ Tuesday for his roadside assistance team.

“When the weather turns for the worse you can anticipate a lot more call volume, unfortunately it takes twice as long to get anything done…something that takes 20 minutes ends up taking an hour cause you're dealing with the road conditions, so it can be tough.”

Acting Sgt. Ed Sanchuck with West Region OPP, is cautioning motorists to use extreme caution while driving.

“Pack an ample supply of patience because people are going to be travelling at a less speed than the posted speed limit. For people that will become impatient and tailgate other drivers, you don’t want to be involved in a collision, you’re not going to be able to stop at a dime. If you see snow go slow, if you see ice think twice.”