[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: 5Z Feed Peculiarity

Hi Daryl,

Glad to hear you're doing well!  Things are good here, I'm happy to
report.


Daryl Herzmann wrote:
> 
> Hi Anne,
>         Hope all is well with you in CO.  I am good.
> 
>         During this summer, I have noticed a problem with surface
> observations not coming down the IDD during the 5Z hour.  It seems odd
> that most everyday the number of obs received during this time
> dramatically drops.  I talked with Steve Chiswell about it during the LDM
> conference and he recommended that I contact the NWS.  I did and they have
> not gotten back with me.  He did send me an email about the subject, it is
> included below.
> 
>         Notice the dramatic drop offs during 5Z on this chart.
> http://mesonet.agron.iastate.edu/plotting/stats/reports.php?network=awos
>         ( The chart is constantly updated, so I see two holes as I view it
> now)  The chart shows the number of AWOS observations saved at the server
> for each valid time.  AWOS reports 3x per hour...
> 
>         I was checking out the LDM archive today and noticed RECLASSes in
> the logs.  Curiously, it is the only two times it has happened.  Both
> during the 5Z hour.  I have included the messages below.  I don't know if
> the two are related, it seems to be a pattern though...
> 
>         As usual, I don't know what is going on.  I ask for divine wisdom
> :)
> 

Oh, geez, you've come to wrong place!

Here's some human thoughts: These two issues look unrelated.  In looking
at motherlode's logs, it does indeed look like there was some glitch
about 5Z on Sep 10 - a few other sites had similar RECLASS messages
involving NEXRAD.  Maybe there was a brief network interruption.  I'm
not sure what happened.

But, it was clear that the NEXRAD products got to motherlode.  From
Chiz's message and from talking with him, the 5Z AWOS products never
made it onto NOAAPORT.  So, sorry, I can't help you with that one.  I
hope that NWS gets back to you soon.  Let us know what you find out.

I'm glad to hear from you - ldmarchive keeps falling off my plate.  I'm
going to discuss with my supervisor the wisdom/practicality of making it
available but trying to limit the use to leaf nodes.  I'll try to catch
him today and get back to you by the end of the week.

Anne



> Thanks,
>         Daryl
> 
> >From: Unidata User Support <address@hidden>
> >Organization: Unidata Program Center/UCAR
> >Keywords:
> 
> Daryl,
> 
> I used the GEMPAK program "sfchck" to review the data I received yesterday
> to see at what times certain Iowa reporting stations did not appear in the
> GEMPAK file. Basically the times that there was no data in the GEMPAK
> file, there was no report in the raw stations. So, I don't find any
> problem with GEMPAK's decoding.
> 
> I find that there is a common group of stations which all are missing at the
> same times. Probably because they would be in the same collective.
> 
> Looking at the times in the GEMPAK file with sfchck, I find that for Aug 2,
> 0520Z, 0940Z, 1320Z, and 1440Z are the common times that no reports
> were issued on NOAAPORT.
> For example, KSLB does not have a report at 0505Z, 0925Z, 1305Z and 1425Z.
> 
> For Aug 1, I find that 71 observations was common among the stations,
> and July 31 had 70 among the stations.
> 
> Since we have redundancy in the top level sites, and the data was not in the
> data stream archive, I would assume that any bulletin with those reporting 
> times
> either 1) was never issued, or 2) never made it onto the NOAAPORT data stream 
> from
> the SBN/NWSTG. At any rate, if you received numbers  similar to he above,
> then you can conclude that there is nothing wrong with your LDM or GEMPAK
> installation.
> 
> Since the number varies from day to day, it doesn't seem like a routine
> maintenance type of issue. If the SBN is not receiving the data,
> it might be worth checking with your NWS office and Julie Hayes/Chapman
> in DC.
> 
> Steve Chiswell
> 
> Sep 07 05:07:35 pircsl4 motherlode[3191]: RECLASS: 20010907040735.027
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROAX|N0RFSD|N0RARX)"},{UNIDATA,
> ".*"}}
> Sep 07 05:07:35 pircsl4 motherlode[3191]: skipped: 20010907040634.939
> (60.088 seconds)
> Sep 07 05:09:00 pircsl4 motherlode[3191]: RECLASS: 20010907040900.200
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROAX|N0RFSD|N0RARX)"},{UNIDATA,
> ".*"}}
> Sep 07 05:09:00 pircsl4 motherlode[3191]: skipped: 20010907040759.643
> (60.557 seconds)
> Sep 07 05:10:17 pircsl4 motherlode[3191]: RECLASS: 20010907041017.670
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROAX|N0RFSD|N0RARX)"},{UNIDATA,
> ".*"}}
> Sep 07 05:10:17 pircsl4 motherlode[3191]: skipped: 20010907040916.765
> (60.905 seconds)
> Sep 07 05:11:48 pircsl4 motherlode[3191]: RECLASS: 20010907041148.320
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROAX|N0RFSD|N0RARX)"},{UNIDATA,
> ".*"}}
> Sep 07 05:11:48 pircsl4 motherlode[3191]: skipped: 20010907041047.708
> (60.612 seconds)
> Sep 07 05:13:04 pircsl4 motherlode[3191]: RECLASS: 20010907041304.671
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROAX|N0RFSD|N0RARX)"},{UNIDATA,
> ".*"}}
> Sep 07 05:13:04 pircsl4 motherlode[3191]: skipped: 20010907041204.322
> (60.349 seconds)
> Sep 07 05:15:53 pircsl4 motherlode[3191]: RECLASS: 20010907041553.951
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROAX|N0RFSD|N0RARX)"},{UNIDATA,
> ".*"}}
> Sep 07 05:15:53 pircsl4 motherlode[3191]: skipped: 20010907041453.438
> (60.513 seconds)
> Sep 07 05:18:05 pircsl4 motherlode[3191]: RECLASS: 20010907041805.070
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROAX|N0RFSD|N0RARX)"},{UNIDATA,
> ".*"}}
> Sep 07 05:18:05 pircsl4 motherlode[3191]: skipped: 20010907041704.886
> (60.184 seconds)
> Sep 07 05:21:28 pircsl4 motherlode[3191]: RECLASS: 20010907042128.881
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROAX|N0RFSD|N0RARX)"},{UNIDATA,
> ".*"}}
> Sep 07 05:21:28 pircsl4 motherlode[3191]: skipped: 20010907042028.459
> (60.422 seconds)
> Sep 07 05:38:56 pircsl4 motherlode[3191]: RECLASS: 20010907043856.397
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROAX|N0RFSD|N0RARX)"},{UNIDATA,
> ".*"}}
> Sep 07 05:38:56 pircsl4 motherlode[3191]: skipped: 20010907043755.391
> (61.006 seconds)
> Sep 07 05:42:30 pircsl4 motherlode[3191]: RECLASS: 20010907044230.090
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROAX|N0RFSD|N0RARX)"},{UNIDATA,
> ".*"}}
> Sep 07 05:42:30 pircsl4 motherlode[3191]: skipped: 20010907044129.773
> (60.317 seconds)
> Sep 07 05:45:06 pircsl4 motherlode[3191]: RECLASS: 20010907044506.709
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROAX|N0RFSD|N0RARX)"},{UNIDATA,
> ".*"}}
> Sep 07 05:45:06 pircsl4 motherlode[3191]: skipped: 20010907044406.673
> (60.036 seconds)
> 
> Sep 10 05:07:21 pircsl4 motherlode[3191]: RECLASS: 20010910040721.928
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROA
> X|N0RFSD|N0RARX)"},{UNIDATA,  ".*"}}
> Sep 10 05:07:21 pircsl4 motherlode[3191]: skipped: 20010910040621.874
> (60.053 seconds)
> Sep 10 05:10:18 pircsl4 motherlode[3191]: RECLASS: 20010910041018.941
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROA
> X|N0RFSD|N0RARX)"},{UNIDATA,  ".*"}}
> Sep 10 05:10:18 pircsl4 motherlode[3191]: skipped: 20010910040918.829
> (60.112 seconds)
> Sep 10 05:14:37 pircsl4 motherlode[3191]: RECLASS: 20010910041437.760
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROA
> X|N0RFSD|N0RARX)"},{UNIDATA,  ".*"}}
> Sep 10 05:14:37 pircsl4 motherlode[3191]: skipped: 20010910041336.729
> (61.031 seconds)
> Sep 10 05:15:54 pircsl4 motherlode[3191]: RECLASS: 20010910041554.946
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROA
> X|N0RFSD|N0RARX)"},{UNIDATA,  ".*"}}
> Sep 10 05:15:54 pircsl4 motherlode[3191]: skipped: 20010910041454.602
> (60.344 seconds)
> Sep 10 05:19:09 pircsl4 motherlode[3191]: RECLASS: 20010910041909.477
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROA
> X|N0RFSD|N0RARX)"},{UNIDATA,  ".*"}}
> Sep 10 05:19:09 pircsl4 motherlode[3191]: skipped: 20010910041809.203
> (60.275 seconds)
> Sep 10 05:20:37 pircsl4 motherlode[3191]: RECLASS: 20010910042037.495
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROA
> X|N0RFSD|N0RARX)"},{UNIDATA,  ".*"}}
> Sep 10 05:20:37 pircsl4 motherlode[3191]: skipped: 20010910041930.250
> (67.245 seconds)
> Sep 10 05:23:56 pircsl4 motherlode[3191]: RECLASS: 20010910042356.599
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROA
> X|N0RFSD|N0RARX)"},{UNIDATA,  ".*"}}
> Sep 10 05:23:56 pircsl4 motherlode[3191]: skipped: 20010910042255.221
> (61.377 seconds)
> Sep 10 05:26:34 pircsl4 motherlode[3191]: RECLASS: 20010910042634.442
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROA
> X|N0RFSD|N0RARX)"},{UNIDATA,  ".*"}}
> Sep 10 05:26:34 pircsl4 motherlode[3191]: skipped: 20010910042534.188
> (60.254 seconds)
> Sep 10 05:31:45 pircsl4 motherlode[3191]: RECLASS: 20010910043145.295
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROA
> X|N0RFSD|N0RARX)"},{UNIDATA,  ".*"}}
> Sep 10 05:31:45 pircsl4 motherlode[3191]: skipped: 20010910043045.031
> (60.264 seconds)
> Sep 10 05:33:22 pircsl4 motherlode[3191]: RECLASS: 20010910043322.568
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROA
> X|N0RFSD|N0RARX)"},{UNIDATA,  ".*"}}
> Sep 10 05:33:22 pircsl4 motherlode[3191]: skipped: 20010910043221.435
> (61.133 seconds)
> Sep 10 05:35:54 pircsl4 motherlode[3191]: RECLASS: 20010910043554.896
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROA
> X|N0RFSD|N0RARX)"},{UNIDATA,  ".*"}}
> Sep 10 05:35:54 pircsl4 motherlode[3191]: skipped: 20010910043453.680
> (61.216 seconds)
> Sep 10 05:39:40 pircsl4 motherlode[3191]: RECLASS: 20010910043940.856
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROA
> X|N0RFSD|N0RARX)"},{UNIDATA,  ".*"}}
> Sep 10 05:39:40 pircsl4 motherlode[3191]: skipped: 20010910043840.259
> (60.597 seconds)
> Sep 10 05:41:04 pircsl4 motherlode[3191]: RECLASS: 20010910044104.093
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROA
> X|N0RFSD|N0RARX)"},{UNIDATA,  ".*"}}
> Sep 10 05:41:04 pircsl4 motherlode[3191]: skipped: 20010910044003.685
> (60.409 seconds)
> Sep 10 05:42:57 pircsl4 motherlode[3191]: RECLASS: 20010910044257.111
> TS_ENDT {{NNEXRAD,  "/p(...DMX|N0RDVN|N0ROA
> X|N0RFSD|N0RARX)"},{UNIDATA,  ".*"}}
> Sep 10 05:42:57 pircsl4 motherlode[3191]: skipped: 20010910044156.926
> (60.185 seconds)
> 
> --
> /**
>  * Daryl Herzmann (address@hidden)
>  * Program Assistant -- Iowa Environmental Mesonet
>  * http://mesonet.agron.iastate.edu
>  */

-- 
***************************************************
Anne Wilson                     UCAR Unidata Program            
address@hidden                 P.O. Box 3000
                                  Boulder, CO  80307
----------------------------------------------------
Unidata WWW server       http://www.unidata.ucar.edu/
****************************************************