I wouldn't call it normal, but it happens. It is more likely that one would win an OGS rather than a SSHRC, but I have heard your case happening before.
Called my school and they said they haven't heard anything. However, the woman sounded hesitant and she said it should be "very, very soon." So I'm assuming they know but are not telling anyone as of yet.
Not only was there a large envelope in my mailbox, but there were two. Unfortunately, neither were related to SSHRC. I imagine I have some waiting to do being an MA student.