Intrabar Alerts

Good day. Would anyone know if it’s possible to have alerts activate when the condition is met rather than waiting for the current bar to finish?
For example when I set an alert on the 30 Minute chart for when the EMA turns and this actually occurs at 11:05 and you can see it in the EMA chart line but the alarm won’t activate until the bar is complete at 11:30 by which time there’s no point. I’m only interested in the initial signal not the end signal.
Is there any way around this other than trying to use lower time frames which is just not as good?

Thank you.
Steve