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NOUS41 KWBC 221940

Service Change Notice 19-45
National Weather Service Headquarters, Silver Spring MD
340 PM EDT Wed May 22 2019

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: NOAA Profiler Network (NPN) Data Available on or
around July 15, 2019

Data from the NOAA Profiler Network (NPN) will be made available
on or around July 15, 2019. The NPN consists of three 449 MHz
wind profiling radars operating in Alaska and a testbed in
Norman, OK. Specifically, the sites are:

TLKA2 (Talkeetna, AK)
HWPA2 (Homer, AK)
AWPA2 (Anchorage, AK)
ROCO2 (Norman, OK)

NPN radars primarily report wind speed and direction at
132 heights, ranging from approximately 170 meters above ground
level (AGL) up to a maximum of 16.2 kilometers. Two data types
are available:

1) A 30 minute average, updated every six minutes.
2) A 60 minute average, updated once per hour.

The data will be available in self-describing BUFR format via
the National Level II (NL2) network, and also as images viewable
by the public through the NPN website at

An Interface Control Document (ICD) describing the data format
and a sample of the data will be available at the Radar
Operations Center website prior to the data being released.

The naming convention is as follows:

Six-minute file: ICAO-YYYYMMDDhhmmss.npn.6minwind.bufr
Hourly file: ICAO-YYYYMMDDhhmmss.npn.hrlywind.bufr


ICAO is each sites upper-case ID (e.g., AWPA2, HWPA2, etc)
YYYY is the four-digit year;
MM is the two-digit month;
DD is the two-digit day of the month;
hh is the two-digit UTC hour;
mm is the two-digit minute;
ss is the two-digit second, which is always 00

For questions or comments, please contact:

 Blake McGuire
 Team Lead, Engineering Special Projects
 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.