Users of NEXRAD Level III products from Unidata:
This is a reminder of the upcoming removal of a number of NEXRAD Level
III products from the NOAAPort SBN and the IDD. (Recall that all NEXRAD
Level III products relayed in the IDD come from NOAAPort.)
NOAA Service Change Notice (SCN) 96 listed a number of NEXRAD Level
III products that were to be removed from NOAAPort around the end of
February, 2022. Instead of these products actually being removed,
the TTAAII portion of their WMO IDs (which are included in the LDM/IDD
Product IDs) were changed to SDUS6i, and they continued to be distributed
in NOAAPort and in the IDD NEXRAD3 feed.
NOAA Service Change Notice 22-36, dated April 7, 2022:
https://www.weather.gov/media/notification/pdf2/scn22-36_remove_noaaport_sdus6_radar_products.pdf
announced that the SDUS6i products previously slated for removal from the
NOAAPort SBN will be removed on or about May 10, 2022 (one week from
tomorrow).
Here is the list of products currently being distributed in NOAAPort with
WMO ID SDUS6i that are slated for removal:
WMO HEADING PRODUCT DESCRIPTION
TTAAII NNN PRODUCT NAME, RESOLUTION, NEXRAD ID, AND ELEVATION ANGLE
------ --- --------------------------------------------------------
SDUS6i NSW Base Spectrum Width .54nm X 1deg 8LVL 124nm 30/SW 0.5DEG
SDUS6i NCZ Composite Reflectivity 2.2nm X 2.2nm 16LVL 38/CR
SDUS6i NHI Hail Index 59/HI
SDUS6i NTV Tornado Vortex Signature 61/TVS
SDUS6i NSS Storm Structure 62/SS
SDUS6i NLA Low Layer Composite Reflectivity - AP Removed 67/APR
SDUS6i NML Middle Layer Composite Reflectivity 66/LRM
SDUS6i NHL High Layer Composite Reflectivity 90/LRM
SDUS6i N3P Three Hour Precipitation Accumulation 79/THP
SDUS6i SPD Supplemental Precipitation Data 82/SPD
SDUS6i NXF Power Removed Control .13nm 13LVL 113/PRC -0.2DEG
SDUS6i NYF Power Removed Control .13nm 13LVL 113/PRC 0.0-0.2DEG
SDUS6i NZF Power Removed Control .13nm 13LVL 113/PRC 0.3-0.4DEG
SDUS6i N0F Power Removed Control .13nm 13LVL 113/PRC 0.5DEG
SDUS6i NAF Power Removed Control .13nm 13LVL 113/PRC 0.9DEG
SDUS6i N1F Power Removed Control .13nm 13LVL 113/PRC 1.3-1.5DEG
SDUS6i NBF Power Removed Control .13nm 13LVL 113/PRC 1.8DEG
SDUS6i N2F Power Removed Control .13nm 13LVL 113/PRC 2.4-2.5DEG
SDUS6i N3F Power Removed Control .13nm 13LVL 113/PRC 3.1-3.5DEG
SDUS6i NET Echo Tops 4km X 4km 41/ET
SDUS6i N1S Storm Relative Velocity .54nm X 1deg 16LVL 56/SRM 1.3-1.5DEG
SDUS6i N2S Storm Relative Velocity .54nm X 1deg 16LVL 56/SRM 2.4-2.5DEG
SDUS6i N3S Storm Relative Velocity .54nm X 1deg 16LVL 56/SRM 3.1-3.5DEG
SDUS6i RCM Radar Coded Message 74/RCM
SDUS6i RSL Archive III Status Product 152/ASP
SDUS6i DOD Dig. One Hour Difference Accumulation 174/DOD
SDUS6i DSD Dig. Storm Total Difference Accumulation 175/DSD
SDUS6i NXQ Base Reflectivity .54nm X 1deg 256LVL 94/DR -0.2DEG
SDUS6i NYQ Base Reflectivity .54nm X 1deg 256LVL 94/DR 0.0-0.2DEG
SDUS6i NZQ Base Reflectivity .54nm X 1deg 256LVL 94/DR 0.3-0.4DEG
SDUS6i N0Q Base Reflectivity .54nm X 1deg 256LVL 94/DR 0.5DEG
SDUS6i NAQ Base Reflectivity .54nm X 1deg 256LVL 94/DR 0.9DEG
SDUS6i N1Q Base Reflectivity .54nm X 1deg 256LVL 94/DR 1.3-1.5DEG
SDUS6i NBQ Base Reflectivity .54nm X 1deg 256LVL 94/DR 1.8DEG
SDUS6i N2Q Base Reflectivity .54nm X 1deg 256LVL 94/DR 2.4-2.5DEG
SDUS6i N3Q Base Reflectivity .54nm X 1deg 256LVL 94/DR 3.1-3.5DEG
SDUS6i NXU Base Velocity .13nm X 1deg 256LVL 99/DV -0.2DEG
SDUS6i NYU Base Velocity .13nm X 1deg 256LVL 99/DV 0.0-0.2DEG
SDUS6i NZU Base Velocity .13nm X 1deg 256LVL 99/DV 0.3-0.4DEG
SDUS6i N0U Base Velocity .13nm X 1deg 256LVL 99/DV 0.5DEG
SDUS6i NAU Base Velocity .13nm X 1deg 256LVL 99/DV 0.9DEG
SDUS6i N1U Base Velocity .13nm X 1deg 256LVL 99/DV 1.3-1.5DEG
NB:
- removal of the N0Q product from NOAAPort will mean that the N0Q national
composite product that is distributed in the IDD FNEXRAD feed will
stop being generated as NOAAPort is (currently) the only source of
NEXRAD Level 3 products that are being distributed in the IDD
- Unidata has registered a request to get an LDM feed of all NEXRAD
Level 3 products from the RPCCDS, this request has been approved by
NOAA, but that feed source is not likely to become active for 2-3 months
When this new source of level 3 products is up and running, we will
resume creating the N0Q composite and distribute it in the IDD
FNEXRAD feed.
- we are now creating a 1 km national composite from the N0B level 3
product (so called Super Res Base Reflectivity) that was recently
added to NOAAPort
The IDD distribution of the N0B composite product will be activated
at about 0 UTC on May 3 (NB: that is tonight at 6 pm MDT).
Please send any/all questions/comments to:
support-datastream@xxxxxxxxxxxxxxxx
Best regards,
Unidata User Support
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