[EAS] WEA is not a super-tweet: NL Police warnings about football match

[Sean Donelan]

On Thu, 25 May 2017, Botterell, Arthur at CalOES wrote:
> That's interesting, Sean, thanks.  I recall the vividly-named "Bud" 
> Weiser bending my ear about CB back in the mid 1990's.  Anyway, with the 
> exception of the U.S. Cellular incident last year, are you aware of any 
> other multiple-transmission incidents in the U.S.?

During Hurricane Matthew in 2016, I saw several tweets from people 
complaining about a particular "stuck" WEA alert from NOAA.  There were 
many WEA messages during the event.  But this particular message seemed to 
keep re-activating the alarm on some people's telephones every few minutes 
with the same message.  It doesn't seem to affect everyone's mobile phone.

Likewise, there have been several Amber Alerts in different states, with 
different originators, with complaints on twitter from people getting 
6-12 duplicate alarms. Usually in the early morning, so they were 
especially annoyed and complained loudly.  While other people in the same 
area said they only got one copy of the alert.

While people posting screenshots on twitter with "stuck" alerts appear to 
be using two particular carriers in the U.S., and usually android phones; 
I don't have enough data to confirm a pattern. It may simply be 
marketshare, so a random problem would naturally affect large marketshare 
carriers.