Re: [ldm-users] NEXRAD ID changes??

FWIW it's not just N.B products doing this...

20220307T191633.718220Z notifyme[70117]
notifyme.c:notifymeprog_5:212       INFO       18370 20220307191632.821513
NEXRAD3 73348475  SDUS26 KHNX 071911 /pNBBHNX !nids/
20220307T191633.718326Z notifyme[70117]
notifyme.c:notifymeprog_5:212       INFO        6152 20220307191632.867833
NEXRAD3 73348476  SDUS58 PAFC 071914 /pN0SAIH
20220307T191633.766274Z notifyme[70117]
notifyme.c:notifymeprog_5:212       INFO       19778 20220307191632.870118
NEXRAD3 73348477  SDUS28 PAFC 071910 /pN3BAKC !nids/
20220307T191633.766402Z notifyme[70117]
notifyme.c:notifymeprog_5:212       INFO        2178 20220307191632.870344
NEXRAD3 73348478  SDUS52 KMLB 071913 /pDPAMLB
20220307T191633.810195Z notifyme[70117]
notifyme.c:notifymeprog_5:212       INFO       98306 20220307191632.886132
NEXRAD3 73348479  SDUS21 KCTP 071913 /pN2BCCX !nids/
20220307T191633.810287Z notifyme[70117]
notifyme.c:notifymeprog_5:212       INFO        1552 20220307191632.888075
NEXRAD3 73348480  SDUS55 KSLC 071910 /pNCRSLC
20220307T191633.854166Z notifyme[70117]
notifyme.c:notifymeprog_5:212       INFO       67908 20220307191633.029729
NEXRAD3 73348481  SDUS52 KFFC 071915 /pTV0ATL !nids/
20220307T191633.854309Z notifyme[70117]
notifyme.c:notifymeprog_5:212       INFO        4380 20220307191633.030216
NEXRAD3 73348482  SDUS52 KMLB 071913 /pNTPMLB
20220307T191633.898156Z notifyme[70117]
notifyme.c:notifymeprog_5:212       INFO         233 20220307191633.030298
NEXRAD3 73348483  SDUS55 KSLC 071910 /pNVLSLC
20220307T191633.898265Z notifyme[70117]
notifyme.c:notifymeprog_5:212       INFO        4050 20220307191633.032406
NEXRAD3 73348484  SDUS52 KMLB 071913 /pDSPMLB !nids/
20220307T191633.946219Z notifyme[70117]
notifyme.c:notifymeprog_5:212       INFO        4484 20220307191633.035764
NEXRAD3 73348485  SDUS32 KMLB 071913 /pN1PMLB
20220307T191633.946316Z notifyme[70117]
notifyme.c:notifymeprog_5:212       INFO       73239 20220307191633.047202
NEXRAD3 73348486  SDUS55 KSLC 071915 /pNYGICX !nids/
20220307T191633.990205Z notifyme[70117]
notifyme.c:notifymeprog_5:212       INFO       15915 20220307191633.049020
NEXRAD3 73348487  SDUS26 KHNX 071911 /pNBUHNX !nids/

I have not dug any deeper on those files however.

-Mike

======================
Mike Zuranski
Meteorology Support Analyst
College of DuPage - Nexlab
Weather.cod.edu <http://weather.cod.edu/>
======================


On Mon, Mar 7, 2022 at 1:11 PM Mike Zuranski <zuranski.wx@xxxxxxxxx> wrote:

> I'm gonna go out on a limb and say it's a bug...
>
> An observation I made that correlates with yours:  Shortly after RAX began
> issuing N.B products there was a period where they were coming in... badly
> somehow.  The detail I noticed was the missing "!nids/" at the end of
> nexrad products while watching the nexrad3 feed.  And like you noticed that
> was temporary.
>
> I see the same thing this morning from a number of sites (LOT grabbed my
> attention first).  I also see the number of sites doing this are
> decreasing, so I'm wondering if this is being worked on somewhere.  But any
> nexrad products that I see in LDM that do not contain "!nids/" at the end
> do not jive with McIDAS nor Gempak while all others do.
>
> Brief example:
> 20220307T185809.320700Z notifyme[10618]
> notifyme.c:notifymeprog_5:212       INFO      123297 20220307185809.170361
> NEXRAD3 73287741  SDUS58 PAFC 071856 /pN0BAKC !nids/
> 20220307T185811.881051Z notifyme[10618]
> notifyme.c:notifymeprog_5:212       INFO      314053 20220307185811.690988
> NEXRAD3 73287963  SDUS51 KRLX 071857 /pN0BRLX
> 20220307T185813.488004Z notifyme[10618]
> notifyme.c:notifymeprog_5:212       INFO      191116 20220307185813.222289
> NEXRAD3 73287985  SDUS53 KGRR 071856 /pN0BGRR !nids/
>
> Daryl:  I'm not sure there's a correlation to exengine4.fox.com, last
> time it was data straight out of SBN doing this.  My Noaaport's been down a
> while so I can't confirm that right now though.
>
> -Mike
>
> ======================
> Mike Zuranski
> Meteorology Support Analyst
> College of DuPage - Nexlab
> Weather.cod.edu <http://weather.cod.edu/>
> ======================
>
>
> On Mon, Mar 7, 2022 at 1:04 PM Daniel Vietor - NOAA Affiliate via
> ldm-users <ldm-users@xxxxxxxxxxxxxxxx> wrote:
>
>> Is it just me or are people seeing a strange zlib compression of the new
>> N0B products. When RAX first came out, it was OK and then for a couple of
>> days I saw the front end of the product was zlib compressed like the old
>> days of the nexrad products. It went away so I didn't think much about it.
>>
>> But then yesterday it came back. Several sites were intermittently zlib
>> compressing the N0B product. I noted Topeka, Kansas City, Springfield, St
>> Louis, Chicago, Evansville, Indianapolis and N Indiana were doing it. But
>> it was intermittent. One scan would be zlib compressed and the next
>> wouldn't be. It was like something in the product, like size, was
>> triggering the zlib compression.
>>
>> I took a look at some of the data. Only the first 4000 bytes are zlib
>> compressed. The radial payload is still bzip2 compressed. Since only the
>> header, which is about 100 bytes, is uncompressed, the zlib compression is
>> compressing over 3800 bytes of the radial payload.  This seems strange. Why
>> compress data that are already compressed?
>>
>> After last night, it seems like this is a feature of the new N0B radar
>> data and not a bug. So I resurrected the old ucnid.c program I wrote 24
>> years ago to remove the zlib compression on the N0B products.
>>
>> So is this a bug or a feature?
>>
>> Dan.
>>
>> On Fri, Mar 4, 2022 at 10:36 AM Gilbert Sebenste <
>> gilbert@xxxxxxxxxxxxxxxx> wrote:
>>
>>> Nothing beats a good Daryl LDM-users rant in the morning. He never lets
>>> me down!
>>>
>>> Imagine my utter surprise when I did what Daryl said and I found
>>> products I didn't know were being sent over NOAAport. Then, I got curious
>>> and instead of using the "NEXRAD" feedtype, I used "ANY". That's when I was
>>> shocked to find several products being sent under the HRS feed that were
>>> completely undocumented by the NWS, and were needed! I alerted Steve
>>> Emmerson, who put out a fix for it. 6.13.16 has it all sorted out now.
>>>
>>> I'll point out that this thinking goes for any product. If there's a
>>> product you think should be there that isn't coming in, and you know you're
>>> getting the entire feed, use a request of "ANY" on that header. Rarely,
>>> it's an LDM bug, but like the example above, it can happen where a product
>>> shows up on an unexpected feedtype.
>>>
>>> Gilbert
>>>
>>> > On Mar 4, 2022, at 10:17 AM, Herzmann, Daryl E [AGRON] <
>>> akrherz@xxxxxxxxxxx> wrote:
>>> >
>>> > Good morning,
>>> >
>>> > I'd like to chime on the topic of "best practice for pqact entries".
>>> For the WMO header found in products, there's a general form for the
>>> entries found:
>>> >
>>> > TTAAII CCCC DDHHMI
>>> >
>>> > When there's a string found in the line below the WMO header that is
>>> six or so characters, this "PIL" is appended to LDM product name in the
>>> form like so:
>>> >
>>> > TTAAII CCCC DDHHMI /pPILXXX
>>> >
>>> > Summary: I *do not* trust the TTAAII value and only sparingly use it
>>> within a pqact entry, but instead fully trust the /pPILXXX section.
>>> >
>>> > In December 2015, I meet with the NWS Data Management folks expressing
>>> interest in quality controlling the CCCC portion of the WMO header.  Can
>>> you imagine that it is sometimes wrong?  Well, it has been 6+ years now,
>>> hundreds of emails, and I'm still not done getting them to correct issues
>>> with it.  As an example of how painful the rabbit hole is, NWS Cheyenne
>>> KCYS was issuing TAFs for 3 sites using KOAX as the CCCC.  This took 8
>>> months to fix and I am still unsure if it is fully fixed.
>>> >
>>> > I have not even attempted automated quality control of the TTAAII, nor
>>> bugging NWS to fix it.  Another story.  I actually did attempt to get NWS
>>> to fix the TTAAII in the case of a product that wasn't using 6 characters
>>> for the TTAAII, can you imagine that it is sometimes only 5?  That request
>>> was rejected.  Anyway,  this value used to be more rigorously set, but is
>>> now more arbitrary than ever.  So in the original example below.
>>> >
>>> > NEXRAD ^SDUS[2357]. ....
>>> ([0-3][0-9])([0-2][0-9])([0-6][0-9]).*/p(...)(...)
>>> >
>>> > I would only trust the SDUS and drop any checks on the other TTAAII
>>> fields.  Instead, put your limiters into the /p section.
>>> >
>>> > NEXRAD ^SDUS.. ....
>>> ([0-3][0-9])([0-2][0-9])([0-6][0-9]).*/p(N0Q|N0B|N0G|Nwhatever)(...)
>>> >
>>> > Oh, there are examples in the TTAAII, where the AA is wrong, but I
>>> have ranted/whined enough already.
>>> >
>>> > daryl
>>> >
>>> > ________________________________________
>>> > From: ldm-users <ldm-users-bounces@xxxxxxxxxxxxxxxx> on behalf of
>>> Gilbert Sebenste <gilbert@xxxxxxxxxxxxxxxx>
>>> > Sent: Friday, March 4, 2022 9:54 AM
>>> > To: Daniel Vietor - NOAA Affiliate
>>> > Cc: LDM-Users; Mike Voss
>>> > Subject: Re: [ldm-users] NEXRAD ID changes??
>>> >
>>> > If you have LDM version 6.13.16, this shouldn't be happening. A bug
>>> fix was applied to ensure that everything NEXRAD3 is supposed to be there.
>>> >
>>> > Gilbert
>>> >
>>> > On Mar 4, 2022, at 9:15 AM, Daniel Vietor - NOAA Affiliate via
>>> ldm-users <ldm-users@xxxxxxxxxxxxxxxx> wrote:
>>> >
>>> > 
>>> > I see a lot of them on the HDS feedtype. So I request both NEXRAD and
>>> HDS.
>>> >
>>> > Dan.
>>> >
>>> > On Fri, Mar 4, 2022 at 9:04 AM Mike Voss <mike.voss@xxxxxxxx<mailto:
>>> mike.voss@xxxxxxxx>> wrote:
>>> > Hi All,
>>> > For me at least, some of my NEXRAD products stopped filing correctly
>>> yesterday at 18Z using this generic pattern match:
>>> >
>>> > NEXRAD ^SDUS[2357]. ....
>>> ([0-3][0-9])([0-2][0-9])([0-6][0-9]).*/p(...)(...)
>>> >       FILE    -overwrite      -close
>>> nexrad/NIDS/\5/\4/\4_(\1:yyyy)(\1:mm)\1_\2\3
>>> >
>>> > as a test, when I changed to this:
>>> > NEXRAD  ^SDUS66 ....
>>> >
>>> > I started getting my "N0Q" products for MUX station.
>>> >
>>> > Also, I stopped receiving the FNEXRAD NEXRCOMP products.  Is it
>>> possible these things are related such that the NEXRCOMP depends on the
>>> NIDS product ID's and somehow a recent change (yesterday) cause this to
>>> break?
>>> >
>>> > thanks for any insights,
>>> > -MIke
>>> > _______________________________________________
>>> > NOTE: All exchanges posted to Unidata maintained email lists are
>>> > recorded in the Unidata inquiry tracking system and made publicly
>>> > available through the web.  Users who post to any of the lists we
>>> > maintain are reminded to remove any personal information that they
>>> > do not want to be made public.
>>> >
>>> >
>>> > ldm-users mailing list
>>> > ldm-users@xxxxxxxxxxxxxxxx<mailto:ldm-users@xxxxxxxxxxxxxxxx>
>>> > For list information or to unsubscribe,  visit:
>>> https://www.unidata.ucar.edu/mailing_lists/
>>> >
>>> >
>>> > --
>>> > Dan Vietor
>>> > Senior Research Meteorologist
>>> > CIRA, Colorado State Univ
>>> > Aviation Weather Center
>>> > Kansas City, MO
>>> > 816.584.7211
>>> >
>>> > _______________________________________________
>>> > NOTE: All exchanges posted to Unidata maintained email lists are
>>> > recorded in the Unidata inquiry tracking system and made publicly
>>> > available through the web.  Users who post to any of the lists we
>>> > maintain are reminded to remove any personal information that they
>>> > do not want to be made public.
>>> >
>>> >
>>> > ldm-users mailing list
>>> > ldm-users@xxxxxxxxxxxxxxxx
>>> > For list information or to unsubscribe,  visit:
>>> https://www.unidata.ucar.edu/mailing_lists/
>>>
>>
>>
>> --
>> *Dan Vietor*
>> *Senior Research Meteorologist*
>> CIRA, Colorado State Univ
>> Aviation Weather Center
>> Kansas City, MO
>> 816.584.7211
>>
>> _______________________________________________
>> NOTE: All exchanges posted to Unidata maintained email lists are
>> recorded in the Unidata inquiry tracking system and made publicly
>> available through the web.  Users who post to any of the lists we
>> maintain are reminded to remove any personal information that they
>> do not want to be made public.
>>
>>
>> ldm-users mailing list
>> ldm-users@xxxxxxxxxxxxxxxx
>> For list information or to unsubscribe,  visit:
>> https://www.unidata.ucar.edu/mailing_lists/
>>
>
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