NOUS41 KWBC 041940



Public Information Statement, Comment Request

National Weather Service Headquarters Washington, DC

240 PM EST Mon Mar 4 2013


To:†††††† Subscribers:

††††††††† -Family of Services

††††††††† -NOAA Weather Wire Service

††††††††† -Emergency Managers Weather Information Network

††††††††† -NOAAPORT

††††††††† Other NWS Partners, Users and Employees


From:†††† John Derber, Acting Chief

††††††††† Global Climate and Weather Modeling Branch

††††††††† NCEP/Environmental Modeling Center

Subject:Soliciting Public Comments through April 19, 2013,

††††††††† on the Removal of NCEPís Legacy Climate Diagnostic

††††††††† Center Products.


The National Centers for Environmental Prediction (NCEP) is

proposing to stop producing the legacy Climate Diagnostic Center

(CDC) ensemble-based precipitation and surface temperature grids

and disseminating them via the NCEP server. These products are

not disseminated via NOAAPORT. NWS is seeking comments on this

proposed change through April 19, 2013.


NCEP runs a system developed by the CDC that uses an early global

atmospheric version of the Climate Data Analysis System (CDAS)

with a resolution of T62 and 28 model layers.This is followed

by a 15 member (control with 7 pairs) ensemble forecast, run at

the 00Z cycle only. Forecasts for precipitation and 995mb

temperature out to 360 hours are posted on the NCEP server at:



These products have become obsolete and have been replaced by

the current operational output from the CDAS and Global Ensemble

Forecast System (GEFS). More details about the products available

from these systems is available at:


NWS will evaluate all comments to determine whether to proceed

with this change. If approved, NWS will issue a Technical

Implementation Notice giving 30 days notice of the

implementation date.

Send comments on this proposal to:

†† John Derber

†† NWS/NCEP Environmental Modeling Center

†† College Park, MD



†† Rebecca Cosgrove

†† NWS/NCEP Central Operations

†† College Park, MD



National Public Information Statements are online at: