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National Service Change and
Technical Implementation Notices

When NWS proposes or finalizes changes to products or services, this page is updated and official notices are sent out on the NOAA Weather Wire Service (NWWS), the Emergency Managers Weather Information Network (EMWIN) and NOAAPort.

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Public Information Statements


For older PNS, SCNs and TINs go to

Service Change Notices

SCNs 2015

For older TINs, SCNs, and PNSs go to

Technical Implementation Notices

TINs 2015

For older TINs, SCNs, and PNSs go to

NOAA, National Weather Service
Office of Climate, Water, and Weather Services
1325 East West Highway
Silver Spring, MD 20910
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Last Updated: October 24, 2016

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