A new Survation poll is due to be released at 10.30 this evening, although there's always a chance the embargo will be broken earlier. The firm's chief has tweeted that the results are "quite something". That could mean something good or bad for us, so I'm not going to speculate (unless anyone has heard something from a semi-credible source).

But there is something important that needs to be clarified. It's not actually true that this poll will be the first to be wholly conducted since the public realised that Yes were in with a real chance of winning. In fact, the fieldwork took place between Friday and yesterday, which covers a span of five days, two of which were before the news broke about Sunday's YouGov poll. Indeed, to a small extent the fieldwork even overlapped with the fieldwork for the YouGov poll. I don't know if Survation have procedures in place to spread out their interview invitations over the course of the fieldwork period, but if not, it's quite possible that MOST of this poll will have been conducted before the YouGov news broke, because most participants tend to respond straight away.

So whatever the poll shows, we should certainly bear that in mind when interpreting the results.