They are more wind sensitive then car, train, plain, etc.
AFIK in combination with modern drone tech they are less wind sensitive then in the past making them much more viable for many but not all areas.
They could be snow sensitive in the sense that a unlucky combination of wind/weather change and stronger snow could make snow stack on them somewhat, especially on larger ones. But we are speaking about blizzard like snowing here, so not really a problem.
It should be possible to make them operable even under very cold weather, but additional care must be taken to make sure the used materials do not get brittle due to the cold or electronics/mechanics stop working.
So technically it likely is reasonable viable for the Canada case.
The question is if it's good enough above other solutions and not to pricey to the right kind of airships, especially given that they are not mass produced.
Being wind sensitive isn't that bad if you can ride the jet stream for better economics. I see google has a patent for adding sails to airships.
To that end, being able to go to a higher altitude makes things more uniform, doesn't it? I guess I'm not a pilot so I don't know what altitudes make things easier, I know they can't do airliner service ceilings, but can they do 5000 ft? Probably depends on the buoyancy.
While air unmanned ballons are operating higher any airship I'm aware of had much _lower_ altitude limits then many aircrafts as far as I remember. But I don't know weather it where piratical or technical limitations.
And it it's sensitive to wind you probably don't want to get it anywhere near to either of the jetstreams (which in some areas are rather turbulent as far as I remember).
The google patent probably is from when they operatted unmanned balloon and drone mounted radio stations for special purpose usage. I think they stopped it even through it worked okayish because it wasn't profitable enough but I don't remember for sure.
AFIK in combination with modern drone tech they are less wind sensitive then in the past making them much more viable for many but not all areas.
They could be snow sensitive in the sense that a unlucky combination of wind/weather change and stronger snow could make snow stack on them somewhat, especially on larger ones. But we are speaking about blizzard like snowing here, so not really a problem.
It should be possible to make them operable even under very cold weather, but additional care must be taken to make sure the used materials do not get brittle due to the cold or electronics/mechanics stop working.
So technically it likely is reasonable viable for the Canada case.
The question is if it's good enough above other solutions and not to pricey to the right kind of airships, especially given that they are not mass produced.