Late warnings or a failure to warn is a huge problem for emergency managers.
As I've written about previously, screwing up a warning is the surest way to injure people and get fired. Warnings are very public events, thus I think that is why many emergency managers are shy about issuing warnings. What could possibly go wrong?
I think you can get the picture.
Now there is some new terminology that is new to me anyway, The National Public Warning System--is a replacement for the term Primary Entry Point, which was the commercial radio station. Do read the article by to come up to speed with new terminology now in use...and get help if you need it to "buck up your warning capability."