3.0 GPA UC Requirement Senior Year Rounded?

I am currently a senior and my 1st semester has just ended. I received a 2.8 unweighted this semester and I plan to get around a 4.0 next semester. My overall gpa is 3.5 with strong extracurriculars. I am hearing that they check each semester for 3.0 and I am also hearing that they round both semesters together for the final gpa. Can someone confirm to me which one it is? If they count it per semester will I not be considered? Please help i’m afraid all my years will go to waste. Who do I contact if this makes me ineligible? I’m looking to get into ucsd or uci. The reasons behind my gpa is that I had to miss a significant amount of school since my mother was hospitalized. Who do I contact to explicate my problem? Should I email admissions from each UC I applied to?

The 3.0 weighted GPA required for Senior year is cummulative (both semesters). Rule of thumb is no D’s or F’s. UCLA/UCB want an unweighted 3.0 with no more than 2 C’s Senior year