Yah I am in Chapleau and supposedly N.Bay took a hit from that lightning storm last night and around 2:00 AM or shortly after this morning is when all the MAIN talkgroups (3OPS22, 25, etc) went down. So that is why in your area you are hearing the ambulances on PROV COM and the OPP units on TAC Talkgroups and on their Detachment Talkgroups all day. Here in Chapleau our ambulance used there old VHF channel (NOARS 1) for a radio check this morn and that was it and since this afternoon all of our OPP units along with untis from 3OPS24 are all on 3TAC04. Even N.Bay is not on there regular console, because they are using a totally different RADIO ID than what they usually use according to TRUNK88 and N.Bay said that on their computer screens they don't see what STATUS Button the officers are pressing like (Available, System, Mobile, etc).
So I am thinking everyone will still be on the TAC's or Detachment Talkgroups for the time being until they get things fixed, what ever the problem is.
Hope this answers your question.
Coolguy