You can listen to any frequency you want within your reception range ...
Alerts -like what weather ? tune into 162.4 , or any of these on this list
Use this online tool to search for frequencies, locations, or licensees. Infomation comes from Industry Canada's database of frequency allocations.
tafl.mckie.ca
Emergency ? define that. You can't hear the Police (dependant on your municipality) many other emergency groups are Encrypted .
Family ..that is another matter, someone will say you need a license form Industry Canada some will say use FRS/family radio channels UHF simplex, some will say radio not certified etc. so watch this thread .
I will get chastised for chiming in
out of area , so lots to learn. Welcome this is an excellent resource for general or specific information.
Bonne chance , Good luck