Actually, I don't really trust the phone alerts. Since I carry the $EMPLOYER phone in addition to my own, I've noticed that sometimes one carrier will alert, while the other one is delayed up to 30 minutes or does not alert at all.

Unless your job requires you to carry a 2nd phone, you're best off buying a weather radio (with the #NOAA county-by-county alert system). It can give alerts to East Baton Rouge Parish without unnecessarily alerting Livingston Parish next door.