ATC: How do I divert off a STAR?

[phr8dawg]

For ATC Types:
Last night I got stuck just north of a squall line with airliners either side while flying a STAR. My radar was highly questionable. If I opted to divert off a STAR, is a low altitude course reversal possible or would ATC procedures require a vector off the route for separation reasons before turning? We were very close to the line. Any opinions? Thanks.

 

[Daytonaflyer]

I'm not an ATC type, but I would have requested a heading to avoid the Tstorms long before I got close enough to worry about them. Easy enough.

 

[Fedora]

It's no big deal as long as you are not lost comm. Call the controller and tell him you need to divert to XYZ because your radar is down. Ask for a good initial vector. (and remind them about your radar so they don't vector you into a storm).
Spinning off of an arrival at a busy airport without telling someone could get you dead or violated.

 

[phr8dawg]

I always have a plan of attack and a plan of escape for T-boomers, but the issue of sequencing and separation never came up before. Heckuva light show!