NOUS42 KWBC 145808
PNSWSH
Public Information
Statement, Comment Request
National Weather Service
Headquarters, Washington DC
1008 AM EST Wed Feb 1 2012
To: Subscribers:
Family of
Services
NOAA Weather
Wire Service
Emergency Managers Weather Information
Network
NOAAPORT
Other NWS
Partners, Users and Employees
From: Bill
Lapenta
Acting Director, Environmental
Modeling Center
National Centers for Environmental
Prediction (NCEP)
Subject: Soliciting Public Comments on Modification of Product Dissemination Time
of Hurricane Weather Research and Forecast (HWRF) System Products through March
9, 2012
NCEP is proposing to
upgrade the Hurricane Weather Research and Forecast (HWRF) modeling system in
May 2012. This upgrade would result in HWRF products being distributed to
the National Hurricane Center (NHC) and to the public up to 20 minutes later than the current distribution time. The NWS is seeking
comments on this proposed upgrade and resultant distribution schedule change by
March 9, 2012.
The proposed upgrades to
the HWRF modeling system would be:
- Inclusion of a very high-resolution storm-following third nest
operating at 3 km
horizontal resolution within a 9 km
intermediate domain
and 27 km outer domain
- A centroid-based nest motion algorithm for accurate storm
tracking
- Improved vortex initialization applicable for 3 km horizontal
resolution and
upgraded GSI
- Improved PBL, convection and microphysics parameterizations
- Improved synthetic satellite products for GOES and microwave
imagers
- A very high temporal resolution tracker product
The benefits to the user
community would be improved hurricane track, intensity and structure
prediction.
The delayed delivery time
would affect all HWRF products distributed through NOAAPORT, the NWS ftp server
and the NCEP ftp/http server.
More details about the HWRF
are available at:
http://www.emc.ncep.noaa.gov/HWRF/
At the close of the
public comment period, NWS will evaluate the comments to determine whether to
proceed with this upgrade to the HWRF as planned. If a decision is made to move
forward, a Technical Information Notice will be issued containing the
implementation date and more details about the upgrade and resultant product
delays.
Please send comments on
this proposal to:
Vijay Tallapragada
Hurricane Team Leader
NWS/NCEP Environmental
Modeling Center
301-763-8000 x7232
National Public
Information Statements are online at:
http://www.weather.gov/os/notif.htm
$$
|