Yes, it was another 10 cm on top of the metre of so of snow which had already fallen in the prior weeks. If that amount had actually fallen (silly weatherman -- imagine them being wrong -- what are the odds?) the army would indeed have been needed. As fate had it, the snow didn't fall and the army was not needed and he became the butt of jokes from the rest of Canada for years to come.
I really do not see what help the Army would be - Blow up snow banks - The Army does not do a lot of snow clearing.
Now build or blow a bridge - Were in - Take a hill - we are on it - provide humanatarian aid - Clean water - Rations - we can fly there now that we hvae those Big Mother Planes.
But snow. Well it stopped the Germans.
My understanding is they do have snowclearing equipment as well as trucks, etc. I do believe he did ask if they could help before asking them for help.