[EAS] NWS Fun

[Sean Donelan]

On Sat, 11 Aug 2018, Robert Bunge - NOAA Federal wrote:
> be stored on the phone for 24 hours (on iPhones, the alerts disappear 
> very quickly, for example - better read it right the first time).

Existing iPhones store alerts on the phone for hours.

To see old alerts, just swipe down from the top of the screen.

User interface design is left up to individual consumer electronics firms. 
Apple engineers think their user interface is very intuitive.  I found 
that most non-Apple engineers never realize they must swipe down to see 
old messages. Intuitive is one of those things that's not very intuitive.

With geo-fencing and old alerts, the user interface design will need to be 
even more complex.

1. Will your phone stores all alerts received or store only those alerts 
for your specific location even if you change locations?

2. Will alerts re-aleart every time your phone leaves and re-enter a 
geo-fenced area? Or only once no matter how many different areas it 
travels through? How will unique alerts be identified across a wide area 
and different carriers with mobile devices?

3. When reviewing old alerts, will you see all old alerts, only alerts you 
saw before, or only old alerts for the the current location but not for 
previous locations?

4. When old alerts are "cancelled" how are the cancellation indicated? 
Will only the original towers transmit the cancellation message? If the 
phone leaves the immediate area, how will it know the message is 
cancelled?

NOAA and other alert originators will still need to prepare both short and 
long messages for a long time.  Short (90 character) for old devices, and 
long (360 character - bytes used for geolocation data) for new dvices.