NOUS41 KWBC 091158



Technical Implementation Notice 16-16

National Weather Service Headquarters Washington DC

748 AM EDT Thu Jun 9 2016


To:        Subscribers:

           -NOAA Weather Wire Service

           -Emergency Managers Weather Information Network


           Other NWS Partners, Users and Employees


From:      Paul Iwugo

           Chief, Software Development Branch

           NCEP Central Operations


Subject:   NCEP Model Analysis and Guidance Web

           Page Replicating: Effective June 20, 2016


In an effort to ensure continuous uptime and availability of the

Model Analysis and Guidance Website(MAG), NCEP will replicate

the MAG website on the NOAA Integrated Dissemination Program

(IDP) system in Boulder, CO. Users will not have to take any

action when the MAG moves between the IDP systems in College

Park and Boulder by June 20, 2016. The change will be controlled

via the DNS name  The impact of this replication

will most likely affect members of the MAG community given

this scenario:


-The MAG website is run operationally out of IDP Boulder.

-Member(s) have IP address-based firewall restrictions set up on

their network.


The purpose of this notice is to share the MAG Boulder IP

address with members of the MAG community who have IP address-

based firewall restrictions in place.  This ensures that errors

will not be encountered when attempting to retrieve model image

data. Prior to June 20, 2016, those potentially affected should

add the following IP address to their current firewall rules:


On or about June 20, 2016, the MAG website may run operationally

from its current IDP location in College Park, MD or

operationally from IDP Boulder.


This notice is being sent with less than 30 days notice because

MAG has been running solely from IDP in College Park, MD, and

any further delays in the IDP Boulder go-live date extends the

risk of having an operational site unreachable in the

event of an issue with our network, server or the IDP.


For questions regarding these changes, please contact:


    Tiros Lee

    NCEP/NCO Software Development Branch

    College Park, Maryland


NWS National Technical Implementation Notices are online at: