[EAS] Blue Alerts
Sean Donelan
sean at donelan.com
Sun May 28 12:13:29 CDT 2017
On Thu, 25 May 2017, Phil Johnson wrote:
> Blue Alerts do not warn of imminent danger to the public. Therefore,
> they have no place in the Emergency Alert System. They do not merit an
> EAS Alert event code - LEW or anything else. And I say this is as the
> father of a 15-year Seattle Police Officer.
Different alerting systems (EAS, IPAWS, NWR, WEA, etc.) have different
policies/rules. Not every alerting system is the same, and not every alert
is the same, so its appropriate they have different policies.
Nevertheless, it can be confusing.
CMAS/WEA has a relatively strict "imminent threat" policy, plus
presidential and amber alerts. The AMBER alert is a distinct category,
because it doesn't fit the imminent threat policy. A child may be
in imminent danger, but an abduction isn't an imminent threat to the
public.
EAS has a looser "day-to-day emergency situations posing a threat to life
and property" policy, plus presidential alerts. Emergency situations are
fairly broad as shown by the variety of EAS event codes, ranging from
national emergencies to 9-1-1 telephone outages.
NWR has the broadest policy of disseminating weather "watches, warnings
and related statements." In addition, NWR may provide non-weather related
messages which "provide timely warnings to the public of events that
threaten life and property" which are "originated and authenticated
by local, state and other Federal government agencies." And finally, NWR
policy allows forecaster discretion for unanticipated events which
"presents a clear and immediate threat to lives and property in the
listening area."
The IPAWS Modernization Act states a use policy of "Except to the extent
necessary for testing the public alert and warning system, the public
alert and warning system shall not be used to transmit a message that
does not relate to a natural disaster, act of terrorism, or other
man-made disaster or threat to public safety." Double-negative?
Social media networks (twitter, facebook, etc) have their own policies.
The policy for Blue Alerts may not be consistent. But other types of
alerts and warnings have been added over the years, which weren't
consistent with the prior policy. For example, allowing the use of
Emergency Broadcast System (EBS) for tornado warnings in the early 1970's
was inconsistent with the prior EBS policy of the time.
Protocol standards often include many, never used options. Just because
the FCC adds a Blue Alert code to the EAS protocol doesn't mean a state
or local EAS plan must use it, or any other state/local event code.
More information about the EAS
mailing list