Cumulus Support

Today I have had to edit out a "spike" in average wind speed caused by restarting MX on Saturday. As it was a windy day, the spike registered as a monthly record and a record for this year. That was easy to do using the various editors.

While I was looking at the "this year" records I noticed a couple of other discrepancies in the "logfile" column of the page - one for high hourly rainfall on 1st January (42.8 mm recorded against 13:16; daily rainfall total was 3.8 mm) and one for highest wind run on 12th January (6547.8 nautical miles recorded against this date; actual recorded wind run was 465.5 nautical miles; 6547.8 nm wind run would indicate a 24-hour mean speed of about 273 knots ). See image below: Looking at the monthly log file for these particular dates, the data is fine.

What can I do to correct these obviously erroneous figures? I fear they are not stored anywhere - I think they are calculated on the fly when you hit the "Fetch Monthly Log Data" button.

Actually - looking at some of the other "logfile" values I can see some more discrepancies: low "feels like", low windchill, low maximum temperature (a value from December), low daily temp range, high humidity (value is okay, but the date is from December), and high 24-hour rain (not shown on the above image). Errors are reproduced consistently. Perhaps something to do with me using an 09:00 rollover?

EDIT: I've noticed that the erroneous wind run has a date from December 2022 as well.

Nothing for you to correct, I suspect like you it is a problem with the 9am rollover. I'll check it out. Now next on my list....

Could you zip up your dayfile, and the 2022-23 monthly log files for me please?

Sure. I assume you mean just the Dec and Jan logs?
Thanks for taking a look.

Thanks.

Okay, there are some oddities in your Dec 22 log file

Lines 214 & 229 are dated incorrectly as 01/01/23, the time is correct, but some of the data is not.

Those out of sequence dates really mess up the records code. If I remove those lines, then the yearly records from the log files seem sensible.

Now the question is how did they get there - I fear you are going to say you used the MX internal editor to fix some data? Which means that the log editor code may be the root cause.

Thanks Mark.

Yes, it would've been via the editor as I don't do hand edits on the files. I can't remember any specifics unfortunately.

What I do remember, though, is some odd behaviour in the editor that I was going to raise with you next - where records are missing from the editor but are present in the file. I don't recall details, but I'm pretty sure it was for a day in January 2023. I will take a look later today.

I will remove those erroneous lines and see how the records pages perform.

Ok. I'll take a look at the records editor using 9am rollover. It will be a few days though, off boating in Wales again tonight.

Removing the erroneous lines fixed the issues in the "this year" records. Thanks for pointing those out.