Hey Stonie,
Thanks for that info.
I might try to hack something together later but level2 -> level3 should be
fairly straight forward. If I get it working would you (or anyone else
here) be interested in that solution?
Best,
-Mike
On Wed, Dec 10, 2025 at 9:54 AM Stonie Cooper <cooper@xxxxxxxx> wrote:
> It is no longer being produced by NOAA at a national level, but rather at
> each WFO. Unidata staff are investigating if it is feasible to replicate
> creating L3 GLM data.
>
> -
> Stonie Cooper, PhD
> Software Engineer III
> NSF Unidata
> cooper@xxxxxxxx
>
>
> On Tue, Dec 9, 2025 at 2:10 PM Mike Zuranski <mike@xxxxxxxxxxxxxxxxxxx>
> wrote:
>
>> Hi Gilbert & Everyone,
>>
>> I see what you see (and don't see). It looks like the level2 GLMISatSS
>> (gridded) GLM data is still flowing but not level3, see below.
>>
>> The difference between the level2 and level3 GLMISatSS data sets is
>> temporal aggregation; level2 is one minute while level3 is five minute.
>> Interesting that we lost one but not the other, especially since the five
>> minute set is more used. Did an IDD script die someplace? I can't recall
>> where/how this data is generated/fed...
>>
>> If it is just gone you have a couple options. Since we still have the
>> level2 data you can aggregate that yourself. You can also compile this
>> product yourself starting from raw GLM tiles, if you want to go that route
>> I'm including some references below to help you do that. TL;DR: you stitch
>> raw tiles together into the level2 product using glm-restitch, and then
>> each time you make a new one you aggregate that and the last four to make a
>> level3 set. And see, that's why I wonder if a script just crashed
>> someplace because that tiled and level2 data is still there and I thought
>> this was Unidata's processing flow too... but it's been a minute and I'm
>> probably wrong.
>>
>> Best,
>> -Mike
>>
>>
>> References:
>>
>> https://mailinglists.unidata.ucar.edu/archives/idvusers/2022/msg00007.html#gsc.tab=0
>>
>> https://www.weather.gov/media/notification/pdf_2023_24/scn22-112_goes-r_glm_gridded_data_products_aaa.pdf
>> https://github.com/Unidata/ldm-alchemy/blob/main/glm-restitch.py
>>
>>
>> $ notifyme -v -h idd.cod.edu -p GLMISatSS -o 300
>> 20251209T194830.514624Z notifyme[3157216] notifyme.c:main:596
>> NOTE Starting Up: idd.cod.edu: 20251209194330.514495
>> TS_ENDT {{ANY, "GLMISatSS"}}
>> 20251209T194830.515119Z notifyme[3157216]
>> inetutil.c:addrbyhost:964 INFO Resolving idd.cod.edu to
>> 192.203.136.196 took 0.000435 seconds
>> 20251209T194830.539576Z notifyme[3157216]
>> notifyme.c:notifyme6:432 NOTE OK
>> 20251209T194831.599375Z notifyme[3157216]
>> notifyme.c:notifymeprog_6:276 INFO 184781 20251209194416.270800
>> NIMAGE 000
>>
>> /data/ldm/pub/native/satellite/GOES/GOES18/Products/GLMISatSS/Level2/FullDisk/20251209/OR_GLM-L2-GLMF-M6_G18_s20253431942000_e20253431943000_c20253431942300.nc
>> 20251209T194831.626749Z notifyme[3157216]
>> notifyme.c:notifymeprog_6:276 INFO 269354 20251209194425.008981
>> NIMAGE 000
>>
>> /data/ldm/pub/native/satellite/GOES/GOES19/Products/GLMISatSS/Level2/FullDisk/20251209/OR_GLM-L2-GLMF-M6_G19_s20253431942000_e20253431943000_c20253431942300.nc
>> 20251209T194831.678468Z notifyme[3157216]
>> notifyme.c:notifymeprog_6:276 INFO 172906 20251209194529.559040
>> NIMAGE 000
>>
>> /data/ldm/pub/native/satellite/GOES/GOES18/Products/GLMISatSS/Level2/FullDisk/20251209/OR_GLM-L2-GLMF-M6_G18_s20253431943000_e20253431944000_c20253431943300.nc
>> 20251209T194831.678525Z notifyme[3157216]
>> notifyme.c:notifymeprog_6:276 INFO 277577 20251209194542.851395
>> NIMAGE 000
>>
>> /data/ldm/pub/native/satellite/GOES/GOES19/Products/GLMISatSS/Level2/FullDisk/20251209/OR_GLM-L2-GLMF-M6_G19_s20253431943000_e20253431944000_c20253431943300.nc
>> 20251209T194831.678546Z notifyme[3157216]
>> notifyme.c:notifymeprog_6:276 INFO 167196 20251209194615.440857
>> NIMAGE 000
>>
>> /data/ldm/pub/native/satellite/GOES/GOES18/Products/GLMISatSS/Level2/FullDisk/20251209/OR_GLM-L2-GLMF-M6_G18_s20253431944000_e20253431945000_c20253431944300.nc
>> 20251209T194831.678574Z notifyme[3157216]
>> notifyme.c:notifymeprog_6:276 INFO 264742 20251209194622.883552
>> NIMAGE 000
>>
>> /data/ldm/pub/native/satellite/GOES/GOES19/Products/GLMISatSS/Level2/FullDisk/20251209/OR_GLM-L2-GLMF-M6_G19_s20253431944000_e20253431945000_c20253431944300.nc
>> 20251209T194831.692097Z notifyme[3157216]
>> notifyme.c:notifymeprog_6:276 INFO 180089 20251209194715.952655
>> NIMAGE 000
>>
>> /data/ldm/pub/native/satellite/GOES/GOES18/Products/GLMISatSS/Level2/FullDisk/20251209/OR_GLM-L2-GLMF-M6_G18_s20253431945000_e20253431946000_c20253431945300.nc
>> 20251209T194831.692142Z notifyme[3157216]
>> notifyme.c:notifymeprog_6:276 INFO 271423 20251209194724.174000
>> NIMAGE 000
>>
>> /data/ldm/pub/native/satellite/GOES/GOES19/Products/GLMISatSS/Level2/FullDisk/20251209/OR_GLM-L2-GLMF-M6_G19_s20253431945000_e20253431946000_c20253431945300.nc
>> 20251209T194831.717980Z notifyme[3157216]
>> notifyme.c:notifymeprog_6:276 INFO 162728 20251209194815.425465
>> NIMAGE 000
>>
>> /data/ldm/pub/native/satellite/GOES/GOES18/Products/GLMISatSS/Level2/FullDisk/20251209/OR_GLM-L2-GLMF-M6_G18_s20253431946000_e20253431947000_c20253431946300.nc
>> 20251209T194831.718022Z notifyme[3157216]
>> notifyme.c:notifymeprog_6:276 INFO 267687 20251209194824.354332
>> NIMAGE 000
>>
>> /data/ldm/pub/native/satellite/GOES/GOES19/Products/GLMISatSS/Level2/FullDisk/20251209/OR_GLM-L2-GLMF-M6_G19_s20253431946000_e20253431947000_c20253431946300.nc
>> ^C20251209T194834.112035Z notifyme[3157216]
>> notifyme.c:cleanup:73 NOTE exiting
>>
>>
>>
>> On Mon, Dec 8, 2025 at 5:48 PM Sebenste, Gilbert <sebensteg@xxxxxxx>
>> wrote:
>>
>>> Hello everyone,
>>>
>>> It has been over a week (possibly more due to lack of weather) where we
>>> are not seeing any GLM level 3 products. We ARE seeing lightning strike data
>>> just fine (level 2 data):
>>>
>>> OR_GLM-L2-LCFA_G19_s20253242246000_e20253242246200_c20253242246218.nc
>>>
>>> However, we are NOT seeing:
>>>
>>> GOES GLM Total Optical Energy
>>> GOES GLM Minimum Flash Area
>>> GOES GLM Flash Extent Density
>>>
>>> A notifyme shows no level 3 products being received on idd or iddb:
>>>
>>> localserver % notifyme -v -h idd.unidata.ucar.edu -p GLMISatSS/Level3
>>> -o 3600 -O
>>>
>>> 20251120T225605.667426Z notifyme[3709300]
>>> notifyme.c:main:592 NOTE Starting Up:
>>> idd.unidata.ucar.edu: 20251120215605.667336 TS_ENDT {{ANY,
>>> "GLMISatSS/Level3"}}
>>>
>>> 20251120T225605.668151Z notifyme[3709300]
>>> inetutil.c:addrbyhost:964 INFO Resolving idd.unidata.ucar.edu
>>> to 128.117.135.3 took 0.000633 seconds
>>>
>>> 20251120T225605.696393Z notifyme[3709300]
>>> notifyme.c:notifyme6:428 NOTE OK
>>>
>>> 20251120T225635.793049Z notifyme[3709300]
>>> notifyme.c:sendNotifyMe:346 ERROR NOTIFYME reclassified: "" -> ""
>>>
>>> 20251120T225635.793089Z notifyme[3709300]
>>> notifyme.c:executeService:396 ERROR Connection to upstream LDM
>>> timed-out
>>>
>>>
>>> Is anyone seeing this missing data?
>>>
>>> Thank you for any help!
>>>
>>> Gilbert Sebenste
>>>
>>> Meteorology Support Analyst
>>>
>>> [image: image001.png]
>>>
>>>
>>>
>>>
>>> _________________________________________________________
>>> NOTE: All exchanges posted to NSF Unidata maintained email lists are
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>>> lists we maintain are reminded to remove any personal information that
>>> they do not want to be made public.
>>>
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>>>
>> _________________________________________________________
>> NOTE: All exchanges posted to NSF Unidata maintained email lists are
>> made publicly available through the web. Users who post to any of the
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>>
> _________________________________________________________
> NOTE: All exchanges posted to NSF Unidata maintained email lists are
> made publicly available through the web. Users who post to any of the
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