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-------- Original Message --------
885
NOUS41 KWBC 161604
PNSWSH
Technical Implementation Notice 12-56
National Weather Service Headquarters Washington DC
1105 AM EST Fri Nov 16 2012
To: Subscribers:
-Family of Services
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPORT
-Other NWS Partners, Users and Employees
From: Tim McClung
Science Plans Branch Chief
Office of Science and Technology
Subject: Bug Fix to Ceiling and Visibility Fields in the
Short Range Ensemble Forecast System:
Effective December 4, 2012
On December 4, 2012, beginning with the 1500 Coordinated
Universal Time (UTC) cycle, the National Centers for
Environmental Prediction (NCEP) will implement a fix to the Short
Range Ensemble Forecast System (SREF). The fix will address:
-Incorrect calculations of visibility fields for the following
11 members: 4 NMMB members (n2, p2, n3, p3) and 7 ARW members
(ctl, n1, p1, n2, p2, n3, p3).
-Incorrect calculations of ceiling fields for the following
4 NMMB members - n2, p2, n3, p3.
This fix will not affect format or content included in any SREF
output products, and has no impact on the AWIPS products or
ensemble products: mean, spread and probability.
The Environmental Modeling Center (EMC) Mesoscale Modeling Branch
(MMB) has a publicly available Web site with more information
concerning the SREF modeling system as well as other NCEP
regional modeling systems:
http://www.emc.ncep.noaa.gov/mmb/mesoscale.html
For questions regarding the scientific content of the modeling
system, please contact:
Geoff Dimego
NCEP/EMC
College Park, Maryland 20740
301-683-3764
Geoff.Dimego@xxxxxxxx
or
Jun Du
NCEP/EMC
College Park, Maryland 20740
phone: 301-763-3704
Jun.Du@xxxxxxxx
For questions regarding the dataflow aspects of these data sets,
please contact:
Rebecca Cosgrove
NCEP/NCO Dataflow Team
College Park, Maryland 20746
301-683-0567
ncep.list.pmb-dataflow@xxxxxxxx
National NWS Technical Implementation Notices are online at:
http://www.nws.noaa.gov/om/notif.htm
$$
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