What are my chances of acceptance as a junior level applicant one year after high school?

Yeah, that works. People do one-year transfers all the time. They won’t hold your being a one-year transfer against you. However, you need to complete IGETC / Breadth (AP’s can be used to meet some requirements).

Essentially, they just want to see that you’re able to perform well in college. You have a 4.0 for your first semester, which makes you competitive.

According to this, you will have 26.67 AP units: http://admission.universityofcalifornia.edu/counselors/exam-credit/ap-credits/index.html (40 / 1.5)

Anything from high school, including your GPA and SATs, are irrelevant.

The application due date is in two days. If you want to apply, get to it.

Make sure to fulfill IGETC, or breadth depending on the school - but IGETC is generally recommended -http://ccctransfer.org/sites/default/files/documents/CCC%20GE%20Sheets/2014-15/Berkeley-City/BCC-IGETC-1415.pdf

Also, make sure to complete your major prerequisites to be competitive. Check assist.org, plug in your CC and the schools you might apply to to see articulation agreements.

I think UCB allows you to complete the calc requirement over the summer, but that’s all. You will have to finish everything else by the Spring.