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NOUS41 KWBC 161040
PNSWSH

Technical Implementation Notice 16-01
National Weather Service Headquarters Washington DC
1240 PM EST Wed Feb 10 2016

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

From:  Timothy McClung
  Portfolio Manager
  Office of Science and Technology Integration

Subject:  Modifying Product Dissemination Time of the NCEP/FNMOC
  Combined Wave Ensemble Product (NFCENS) Effective
  March 14, 2016

Effective on or about March 14, 2016, beginning with the 1200
Coordinated Universal Time (UTC) run, the National Centers for
Environmental Prediction (NCEP) will be changing the delivery
time of the NFCENS products.

The NFCENS product consists of a combination of wave ensemble
outputs from the NOAA WAVEWATCH III wave ensemble system, and
from the wave ensembles run by the US Navy Fleet Numerical
Meteorology and Oceanographic Center (FNMOC). The product
combines outputs from a total of 41 wave ensemble members; one
control run and 20 members from the NCEP system, and 20
additional members from FNMOC.

After an upgrade to FNMOC`s ensemble system, delivery of
upstream products to NCEP have been delayed. This has resulted
in the NFCENS system running without FNMOC input. Therefore,
NCEP will delay the NFCENS distribution time by 2 hours to
ensure inclusion of FNMOC data. Delivery of NFCENS products to
the National Hurricane Center (NHC), Ocean Prediction Center
(OPC) and to the public, will be delayed by 2 hours relative to
the current distribution time.

The delayed delivery time would affect all NFCENS products
distributed, to include:

 ftp://ftp.ncep.noaa.gov/pub/data/nccf/com/wave/prod
 nomads.ncep.noaa.gov/pub/data/nccf/com/wave/prod
 nomads.ncep.noaa.gov (grib filter and OpenDAP)

For questions regarding these time changes, please contact:
    Henrique Alves
    NWS/NCEP EMC
    College Park, MD
    henrique.alves@noaa.gov
or
   Carissa Klemmer
   NWS/NCEP Central Operations
   College Park, MD
   301-683-0567
   ncep.list.pmb-dataflow@noaa.gov

NWS National Technical Implementation Notices are online at:

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



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