An ‘Omega’ pattern of Jet Stream Rosby waves developed in early July dragging hot air up from Spain. This coincided with a full moon with maximum summer tides.
I am no meteorologist but even I can understand how this ‘Omega pattern’ in the Jet Streams must drag hot Spanish/N. African up air over the UK. So let’s look at the ECMWF charts from the neap tide on June 25 and the full moon tide on Feb 3rd.
A full moon generates the largest tides in the northern hemisphere in summer, whereas a new moon dominates in winter.
So how could the Jet Stream flow possibly be disturbed by an increasing atmospheric tide? The main effect of tides is the tractional (horizontal) N-S component which is unaffected by gravity. The rotation of the earth generates a variable torque whose strength depends on the lunar cycle of neap and spring tides.
Having studied this for about a year I am convinced that statiscally the data now prove that there is an effect, particlularly in winter.