Re: [ldm-users] NWS MRMS datafeed question: SPCNIDS

  • To: Gerald Creager <gcreager@xxxxxxx>
  • Subject: Re: [ldm-users] NWS MRMS datafeed question: SPCNIDS
  • From: Daniel Vietor - NOAA Affiliate <dan.vietor@xxxxxxxx>
  • Date: Tue, 7 Apr 2026 03:02:56 -0500
Before MRMS, we received a set of radar mosaics from SPC, that were in NIDS
format. It was basically a very large raster NIDS file on a Lambert
Conformal grid, I believe they were 1km resolution. Think composite
reflectivity but bigger. I didn't think those images were still being
generated.

Dan.

On Tue, Apr 7, 2026 at 12:18 AM Gerald Creager <gcreager@xxxxxxx> wrote:

> Howdy! I'm looking at the MRMS data feed from NWS, and I'm seeing 2
> different MergedReflectivityQComposite datasets: "grib2" and "spcnids". Can
> anyone share insight as to what the SPCNIDS dataset comprises?
>
> Thanks
> Gerry
>
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-- 
*Dan Vietor*
*Senior Research Meteorologist*
CIRA, Colorado State Univ
Kansas City, MO
816.584.7211