... which again seems inconsistent with the other entries.
Remember it's a human being writing these log entries.
... and that it's a human being trying to read
the log entries. With hindsight, this thread probably belongs in the Handwriting Help forum.
You will come across wrongly used weather and cloud codes, mixed up column use, clearly wrong digits in temperatures and pressures and what have you.
And remember that, even when you notice clearly wrong entries, you still have to keep to the Type What You See rule.
But you can't Type What You See until you've made a decision on what, exactly, it is that you are seeing.
I couldn't decide whether the entries were simply inconsistent, or whether I was reading them wrongly. Now that I've done a few more pages, though, I'm getting more used to the handwriting style, and starting to doubt my decisions a little less.
No doubt things will start to get even easier after another hundred or so pages.