Today and tomorrow there is a “supermoon” which occurs when a full moon coincides with the lunar-earth orbit at perihelion. The moon is then about 30,000 miles closer to the earth causing “perigean” spring tides some 20% stronger than normal. In summer this occurs only when the moon is over the southern hemisphere.
Below is a simulation of the tractional tidal force field from August 1st until October 1st 2014 (when my computer crashed). This is a 2-hour step simulation including the 24 hour rotation of the earth centred on 30W which shows how strong the tides get before we enter into a quieter period.
So here then is our “tongue in cheek” medium range weather forecast for Europe.
There will be unsettled weather in northern Europe until the second half of August. This will be followed by an extended period of warm calm weather for about one month. UK will then have a pleasant Indian Summer. There will be a week of changeable stormy weather around the 5th September to spoil the otherwise pleasant weather.
Let’s wait and see if changing tidal forces on the Jet Stream actually do have any effect on the weather at high latitudes!
P.S. It is already raining here in the UK.