Well! I can't ignore that, as my forecast criteria have been triggered
by cross-model agreement and consistency from both the gfs and the ECM
today:

** At T240, on 3rd Sept, the UK will be bathed in a warm airstream,
with a continental feed. Higher pressure will be over, or to the east
of the UK and lower pressure will be kept out in the Atlantic, or
towards Iceland, by the bocking high. This situation will have been
preceded by a period of dry and settled weather, starting towards the
end of the last week in August and including the Bank Holiday. **

Short and simple. I don't see an early autumn at all. The unsettled
weather will continue this week, but by early September, there will be
(questionable, for sure!) talk of an "Indian summer" (whatever that
actually is!) . Autumn will have been postponed.

T. On the 4th, Manchester will be experiencing warm and settled
weather.