NOUS41 KWBC 211215



Public Information Notice 16-38

National Weather Service Headquarters Washington DC

815 AM EST Mon Nov 21 2016 



          =NOAA Weather Wire Service 

          -Emergency Managers Weather Information Network


          Other NWS Partners and NWS Employees


FROM:     Ben Kyger

          Director, NCEP Central Operations


SUBJECT:  Soliciting Comments until December 21, 2016, on an

          NWS Proposal to Move to Common Alerting Protocol

          Version 1.2 Messages on February 1, 2017


NWS is accepting comments through December 21, 2016, on its

proposed enhanced Internet based feeds of NWS

Watch/Warning/Advisory products formatted using the eXtensible

Markup Language (XML) based Common Alerting Protocol (CAP)

Version 1.2.


These feeds are available online at:


This URL will also contain information about the CAP v1.2



Partners and users are encouraged to leave comments on this

proposed change at:


This CAP version uses the XML-based ATOM format to provide state

and national indexes for active CAP messages as well as XML

style sheets to transform the messages into human readable form. 

The CAP v1.2 messages feature more detailed pre-parsing of NWS

text messages than has been offered previously (see current CAP

v1.1 feed).



Partners and users are encouraged to examine the new CAP v1.2

messages closely. Pending review and analysis of all comments

received by December 21, 2016, NWS intends to transition to the

CAP v1.2 protocol and terminate production of the CAP v1.1

protocol no sooner than February 1, 2017 A Service Change Notice

will be issued announcing the exact transition date with at

least 30 days lead time. CAP v1.2 messages may undergo some

minor changes as comments are received.


For more information, please contact:


  Kolly Mars

  NCEP Central Operations

  Kansas City, MO 64153

  (816) 584-7296


National Public Information Notices are online at: