Does severance delay my unemployment claim?

I was offered severance of 8 weeks after being let go as a welding apprentice and I am unsure how it affects benefits. I worked as a welding apprentice before this. I have a mortgage and need to plan. Who should I ask before signing?

Thanks for writing this out. I went through something close to it last year, and it got easier once I kept a simple log of every call and form.