As mentioned in my transition summary, noticed that the ~48Hz line happened to be noticeably higher than normal as I walked in this corresponded to a noisier DARM seen via DARM BLRMS (also noticed by Cheryl).  Apparently, it looked like 48Hz line would get rung up by certain types of glitches and then have effects on DARM...which looked negative during Cheryl's shift and part of mine.

Then at 7:55:50utc, I noticed a BIG glitch.  For a few minutes I watched the DARM spectra with an eye on the big 48Hz line just so I could get some screenshots of that fundamental and its 2nd harmonic.  Attached are a couple of them (one where the fundamental/2nd harmonic are "fat" & the other where they are higher in amplitude).  See first two attachments.

While looking at these two noisy lines, all of a sudden noticed a big change in DARM:  The Bucket Dropped!

- From about 80-200Hz noticed that DARM was well below reference and the range went up to something like 120-140Mpc!  (see 3rd attachment)

- Then a few minutes later, higher frequencies followed suit and DARM was below reference from 70Hz well above 7kHz!  (I glanced up at the range and saw saw us hit over 170Mpc at one point!). (see 4th attachment)

- All of this weirdness corresponds with a drop in DARM blrms in the 100-450Hz band taking a notable drop (see 5th attachement)

- 6th Attachment is a screenshot of the BNS Range plot where H1 goes off-scale for a few minutes.

It should be noted for the high range observed, there were also many more lines/harmonics appearing in DARM from 200Hz and above.  Lasted a few minutes at these high ranges, but then started getting "DCPD" Verbals as well as low frequency (10-40Hz band) bump/glitches.  Then H1 just dropped out of lock after a few minutes of this weird behavior.