You can make warnings yourself.It can be a tornado, hurricane, tsunami, chemical/disease breakout, civil defense emergency, winter storm, severe T storm, or other emergency. You can see inside and change it to the 2nd option. It may be hard to understand the speech, it was the only text-to-speech thing that worked.
EAS opening/closing sound and original project by @koshka123 text to speech by www.text2speech.org/ updates and other stuff by @NickAndZachsmoy Updates: Coming Soon