Hi from complete newbie!
I am hearing occasional alerts/warnings when using the Phantom 3 Standard.  They are in a female voice.  But some of them I can't make out!
Is there a list of warnings/alerts and what they mean?

What is she telling you?  Make a list and come back and post.  You should be getting warnings on the screen too.

You can check in the app.
Look for clear all warnings, there is a "warnings" directly below it. Click it, then click on a date to open all warnings. It will list all of them. (This is on the p3 pro. Your's should be the same.)

Noelma, can you please provide us more details like ALABAMA and Al S. Alice's Handler mentioned? What did she say and if there is any message in the APP? If the issue persists, you may take a short video about the audio warning so that we can help to make it clear.