Public Information Statement
Issued by NWS National HQ

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NOUS41 KWBC 201500

Service Change Notice 17-118
National Weather Service Headquarters, Silver Spring, MD
300 PM EST Mon Nov 20 2017

To:    Subscribers
    -NOAA Weather Wire Service
    -Emergency Managers Weather Information Network
    Other NWS Partners and Employees

From:    Terrance J. Clark
    Director, WSR-88D Radar Operations Center

Subject:    WSR-88D RDA/RPG Build 18.0 Beta Test Scheduled to
    Begin January 2018

The Radar Operations Center will begin the Beta Test phase of
Radar Data Acquisition (RDA)/Radar Product Generator (RPG) Build
18.0 in January 2018 and continue through March 2018.

Changes affecting external users include the removal of four
Volume Coverage Patterns (VCPs) and the introduction of two new
VCPs. NWS will remove VCPs 11, 211, 21 and 221 and introduce
VCPs 35 and 215. More information is available at the link

Additionally, at KICX Cedar City, UT, the lowest elevation angle
will now be +0.2 degrees. This low elevation angle is a
supplement to the standard suite of elevation angles; +0.2
degrees will be included in all VCPs at KICX.

Build 18.0 Beta Test sites and tentative start dates are as

KUDX: Rapid City, SD
January 8, 2018

PHKI: Kauai, HI
January 22, 2018

KYUX: Yuma, AZ
January 29, 2018

KEYX: Edwards AFB, CA
February 5, 2018

KLTX: Wilmington, NC
February 5, 2018

NWS expect to begin full deployment of Build 18.0 in late March
or early April 2018.

Updated Interface Control Documents (ICDs) are available for
Build 18.0 at the following link:

For questions or comments, please contact:
   Jessica Schultz
   NWS Radar Focal Point
   Radar Operations Center

National Service Change Notices are online at: is the U.S. government's official web portal to all federal, state and local government web resources and services.