Don’t hesitate to contact Weather Radio Canada via the form on their website, they don’t always monitor their network from my experience.
Late last spring, our local 162.550 channel was going full power for 5 seconds then shutting off for a minute and then doing this again and again. It went like that for a whole week before I completed their online form, as I thought « they probably have a tech en route ».
It didn’t take long after I completed the form, for the service to get back to normal.