[nws-changes] 20110721: termination of NCEP's regional spectral model for Hawaii- fwd: ADMIN NOTICE NOUS41 KWBC

• To: nws-changes@xxxxxxxxxxxxxxxx
• Subject: [nws-changes] 20110721: termination of NCEP's regional spectral model for Hawaii- fwd: ADMIN NOTICE NOUS41 KWBC
• From: Linda Miller <lmiller@xxxxxxxxxxxxxxxx>
• Date: Thu, 21 Jul 2011 12:34:12 -0600

-------- Original Message --------

790
NOUS41 KWBC 211820
PNSWSH

Technical Implementation Notice 11-34
National Weather Service Headquarters, Washington, DC
220 PM EDT Thu Jul 21 2011

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

From:        Geoff DiMego
             Chief, Mesoscale Modeling Branch
             NCEP/Environmental Modeling Center

Subject:     Termination of NCEPs Regional Spectral Model for
             Hawaii:  Effective September 13, 2011

Effective Tuesday, September 13, 2011, with the 1200 Universal
Coordinated Time (UTC) cycle, the National Centers for
Environmental Prediction (NCEP) will stop running the Regional
Spectral Model (RSM) for Hawaii and discontinue all output
products from this model run.

A Public Information Statement was issued on May 23, 2011,
requesting comments on the proposed termination of the RSM for
Hawaii. Please see:

http://www.weather.gov/os/notification/pns11rsm_removal.htm

Based on the responses received, the decision was made to
terminate the RSM run and associated output products for Hawaii.

The RSM is a hydrostatic limited-area atmospheric model using a
spectral method for horizontal advection. It is run to 48 hours
twice daily over Hawaii with an equivalent grid spacing of 10 km
on 42 levels.

The table below lists characteristics of the RSM and other
current, and imminent, NCEP Operational Products, all of which
are based on nonhydrostatic dynamics, and all of which provide
similar or better guidance than the Hawaii RSM. More details
about the exact grids and products available for each of the
items listed in the table below are available at:

http://www.nco.ncep.noaa.gov/pmb/changes/rsm_removal.shtml

Product    Runs/day  Range         Resolution     Grid
RSM            2      48hr         10 km/42lev    see URL above
NAM            4      84hr         12 km/60lev    grid #182
NAM nest*      4      60hr          3 km/60lev    grid #196
HiResWindow
WRF-ARW        2      48hr          5 km/35lev    see URL above
WRF-NMM        2      48hr          4 km/35lev    see URL above

* NAM nest is planned for implementation in August or September
2011.  See NWS  TIN 11-16 for more details on the NAM nest.

If you have questions about this termination, please contact:

   Geoff DiMego
   NWS/NCEP Environmental Modeling Center
   Camp Springs, MD
   geoff.dimego@xxxxxxxx
 or
   Rebecca Cosgrove
  NWS/NCEP Central Operations
  Camp Spring, MD
  rebecca.cosgrove@xxxxxxxx

National Public Information Statements are online at:

     http://www.weather.gov/os/notif.htm

$$