I thought I'd chime in though my knowledge is limited on what you're asking for the most part. I know back in the day, MSU's online program was kind of looked down on, not sure if that's still the case as online college has generally become a bit more mainstream. The program did lean toward the TV Met side of the field, I'd guess it hasn't changed.
In general, from what I've read, just having a BS these days isn't guaranteed a job in the field, even with excellent grades and some experience. There are way more applicants than jobs. Jobs in the NWS are very competitive. Even if you were to get a BS then find an entry-level job, I'd guess you'd be taking a pay cut. For reference, I got my BS in 2000 and was offered an entry-level job at a private forecasting company in Houston for $26K, then accepted one in Iowa for $34K, which I thought was great
You'd have much better chances with a MS, but you'd also benefit from some experience like an internship, which I'm not sure you'd have time for between classes and your 9-5 job. In any case, good luck.