NCEP Synergy Meeting Highlights: March 28, 2011
This meeting was led by Bill Bua (UCAR/COMET) and attended by Chris Caruso Magee (NCO), Becky Cosgrove (NCO); Jordan Alpert, (EMC); John Ward (EMC); Geoff Dimego (EMC); Glenn White (EMC), Mary Hart (EMC); Chad Cary (EMC); Vera Gerald (EMC); Steve Silberberg (AWC); Jason Levit (AWC); Steve Weiss (SPC), Andy Dean (SPC); Mike Brennan (TPC); Keith Brill (HPC); Kathy Gilbert (MDL); Eugene Petrescu (AR),; Dave Radell (ER); Jeff Waldstrecher (ER); Brian Meiretzky (ER); John Kelly (NOS); and Frank Aikman (NOS)
1. NCO (Chris Caruso Magee)
Hi-Res Window Implementation
This is still on schedule for 29 March, and includes updates to the dynamical core and the model physics. See the TIN at:
Three new Regional Ocean Modeling
System (ROMS)-based OFS for the Chesapeake Bay, Delaware Bay, and
Climate Forecast System
The CFS version 2.0 has been approved for implementation on 30 March 2011. See the TIN at http://www.nws.noaa.gov/os/notification/tin10-55cfs_aac.htm for details.
Global Forecasting System/Gridpoint
Statistical Interpolation System
The GFS/GSI implementation, which was originally scheduled for 26 April 2011, has been postponed until May 2011. A parallel run has been started, which will be offset two hours later than the operational system. Anyone who has not already e-mailed Chris Magee to participate in the parallel run assessment should notify her as soon as possible. Those who do not know where the data files or graphics are for the parallel should also e-mail Ms. Magee. The TIN detailing the upgrades included in the implementation can be found at:
For the latest schedule updates see: http://www.nco.ncep.noaa.gov/pmb/changes/
2. NOTES FROM EMC
2a. Global Climate and Weather Modeling Branch (GCWMB) (John Ward, Jordan Alpert, Glenn White)
In the parallel run assessment discussed above by NCO, GCWMB requested that particular attention be paid to the effectiveness of the fix to the lower tropospheric warm bias that was introduced by the last implementation. They also reported that polar orbiter (formerly NPOESS, now JPSS) data denial experiments resulted in degradation in the forecast of the 26-27 December 2010 snowstorm in the northeastern U.S. Eastern Region was interested in the results and will contact Glenn White to get the data.
2b. Global Ensemble Prediction System
2c. Mesoscale Modeling Branch (MMB)(Geoff Dimego)
Change (RFC) will be issued by the MMB for the new mesoscale model (the NMM-B)
next month. This will transition the WRF-NMM to the NMM-B, which will be a
non-hydrostatic multiscale (from global to mesoscales) on the Arakawa B
(changed from E) grid. It will also be
reconfigured to the National Environmental Modeling System (NEMS) framework. There
will also be 4-km nests over the CONUS, a 6-km nest over
Reinstitution of Fire Weather Runs:
Logistics are being worked out for the reinstitution of fire weather runs over selected CONUS (1.33-km resolution) and AK (1.5-km resolution) domains. These domains would be the size of the state of PA or the southern part of CA. They will be 36-hour forecast runs with hourly forecast output. Distribution to incident meteorologists (IMETS) will be as before, to the regions through FxNET. They’ll also be available through ftp. Testing of the Fire Weather nests has been ongoing over the past couple of months. A site to ftp the data is available now if anyone is interested in early evaluation.
Planned RTMA and SREF changes discussed in previous synergy meetings will not be implemented until 4th quarter 2011.
2d. Marine Modeling and Analysis Branch
3. NATIONAL OCEAN SERVICE (NOS)
reference above to Regional Ocean Modeling System implementations in
4. FEEDBACK FROM MDL/OPERATIONAL CENTERS/REGIONS
The NAM-B data has been tested in the current set of MOS equations and found not to degrade the MOS forecasts. Note was made that the change from sensible to virtual temperature in calculation of stability parameters also had no adverse effect on MOS. It was noted that for MDL to continue testing the NAM-B data in NAM MOS, there will be a move from the NAMB to a NAMX directory once NCO begins running the NAM-B.
Gridded LAMP products are currently available experimentally for Temperature, Dewpoint, Visibility, and Ceiling Height for the CONUS on a 2.5-km grid. MDL plans to make them operational in the summer; timing will depend on space being available on the SBN.
Some modifications are being planned to improve Gridded MOS forecasts. These will
desire to receive AFWA
SPC thanked MMB for getting the new Rapid Refresh parallel in for this years severe weather season.
5. The next Synergy Meeting will be held at 2:30 pm EDT on Monday, April 25, 2011 in room 209, with remote teleconferencing capability.