Doing the Weather Diaries in the morning found that Jul 17 1989 ended in 3 dots which looked suspiciously out-of-band, and they were - I'd got distracted and left 3 or 4 paras untranscribed. Duly did them, and was rewarded with two incidents I'd forgotten about.
0700 <8 Sc-allop Sun
1100 6 Cu
1700 0 HOT