NOUS41 KWBC 251416           

PNSWSH

 

Service Change Notice 14-36

National Weather Service Headquarters Washington DC

1015 AM EDT Wed June 25 2014

 

TO:      Subscribers:

         -Family of Services

         -NOAA Weather Wire Service

         -Emergency Managers Weather Information Network

         -NOAAPORT

         Other NWS Partners and NWS employees

 

From:    Deirdre R. Jones

         Acting Director, NWS Office of Operational Systems

 

Subject: Termination of Continental United States Wind Profiler

         Observation Data on or about August 30, 2014

 

A recent NOAA study concluded that wind, temperature, and

moisture observations measured by sensors on commercial aircraft

and those taken by equipment on weather balloons provide data

that are superior to the NOAA 22-year-old Wind Profiler Network

(NPN) for short-range weather forecasts. The combination of tight

economic conditions and wind profiler system obsolescence, in

addition to the limited geographic scope of the NPN, led NOAA to

recommend discontinuing the use of the Wind Profiler Network in a

report to Congress in May 2013.

 

Subsequently, the Fiscal Year 2014 Presidential Budget Request

and the FY14 Omnibus Appropriations Act (PL 113-76) eliminated

funding for the NPN within the continental United States (CONUS). 

As a result, preparations are underway to begin decommissioning

the CONUS NPN. The first step in the decommissioning process is

to deactivate the NPN data feed to NWS websites. NWS will cease

ingesting and recording site data from NPN sites in Texas,

Missouri, Wisconsin, Arkansas, Colorado, Nebraska, Kansas,

Oklahoma, Wyoming, Iowa, Indiana, Illinois, Louisiana, New Mexico

and New York on or about August 30, 2014.

 

Retiring the NPN will not have an adverse impact to the NOAA

forecast and warning services. Vast improvements in computer

model and data assimilation systems, in addition to the use of

modern atmospheric data sampling via aircraft observations, dual

polarization Doppler radar and geostationary and polar

satellites, will continue to provide the quality data necessary

for NWS models, forecasts and services. Additionally, using

Disaster Relief Appropriations Act of 2013 funds, the NWS plans

to expand in coverage and increase the number of wind,

temperature, and moisture measurements from sensors available on

commercial aircraft. 

 

NWS is planning additional decommissioning steps for the eventual

removal of these NPN sites. NPN program information is online at:

 

http://www.profiler.noaa.gov/npn/

 

For questions concerning these changes, please contact:

 

Al Wissman

NOAA/NWS/OOS

Silver Spring, MD 20910

301-713-1835 ext 133

Al.Wissman@noaa.gov

 

All NWS National Service Change Notices are available online at:

 

http://www.nws.noaa.gov/om/notif.htm

 

$$