NOUS41 KWBC 272020 AAA
PNSWSH
Service Change Notice 10-47, Amended
National Weather Service Headquarters Washington DC
343 PM EST Wed Feb 2, 2011
TO: Subscribers:
-Family of Services
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPORT
Other NWS Partners and Employees
From: Kevin Schrab
Chief, Observing Services Division
Office of Climate Water and Weather Services
Subject: Amended: To report the official release point datum
for the Las Vegas, NV, Radiosonde Replacement
System (RRS) site
The original notice dated Nov 10, 2010, contained provisional
datum information and the elevation value was subsequently
revised. The official value is now 693.234 meters as indicated
in this amendment. All other information remains unchanged.
The original notice is below for your convenience.
The NWS Weather Forecast Office (WFO) in Las Vegas, NV, (VEF)
initiated daily RRS UA observations on Dec. 18, 2010 and reached
twice per day observations on Jan. 16, 2011. This change follows
the termination at Desert Rock (DRA) of Radiotheodolite Tracking
(ART) and Radio Direction Finding (RDF) radiosonde observations.
Please update your metadata files for these initial coordinates
immediately so your UA derived products will not give erroneous
information.
Table 1. Initial Coordinates of Las Vegas Release Point Location
NAME INDEX LAT LON ELEVATION
LAS VEGAS 72388 36.047139N 115.184639W 693.234 M
NOTE: The WMO Index Number Will Be 72388.
All users are advised to update their communications identifiers
immediately in order to receive upper-air coded text products
from Las Vegas.
TABLE 2. New AWIPS IDs and New WMO Headings
Current Current New New
AWIPS ID WMO Headings AWIPS ID WMO Headings
ABVDRA UFUS45 KDRA ABVVEF UFUS45 KVEF
FZLDRA UXUS45 KDRA FZLVEF UXUS45 KVEF
MANDRA USUS45 KDRA MANVEF USUS45 KVEF
SGLDRA UMUS45 KDRA SGLVEF UMUS45 KVEF
Institutional and commercial distributors who generate derived
products must ensure their communication system directories
exactly match the new headings by Dec. 18, 2010. Failure to do
so will prevent UA data from Las Vegas from reaching the
intended user communities.
Although the effective date for this change is less than the
75-days advised in NWSI 10-1805, a 36-day lead time should be
sufficient when NWS directly informs service providers to make
a priority change in their product meta data to prevent
implementation delays. To check the availability of Las Vegas
products go to:
http://esrl.noaa.gov/raobs/
-Search by "WMO Station Identifier"
-When a blank dialogue window appears, enter: 72388
You should then be able to view the Las Vegas data and
metadata.
If you have questions or feedback, please contact:
Ivan Navarro
National Weather Service, OPS11
1325 East West Highway
Silver Spring, MD 20910
301-713-1841 Ext 123
Ivan.Navarro@noaa.gov
National Service Change Notices are online at:
http://www.weather.gov/os/notif.htm
$$
NNNN
|