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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
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 -- ********************************************************************** < Unidata User Support UCAR Unidata Program < (303)497-8643 P.O. Box 3000 < support@xxxxxxxxxxxxxxxx Boulder, CO 80307 < ---------------------------------------------------------------------- < Unidata Web Support http://www.unidata.ucar.edu/support < ********************************************************************** <
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