The current spell of fine weather is due to a blocking area of high pressure over and just to the north of Ireland and the UK.
This particular type of blocking pattern is called an Omega Block because the jet stream makes a pattern that resembles the Greek letter omega.
It forms when the jet stream is weak and meanders from north to south ending up with stationary high pressure sandwiched between two low pressure systems to the east-southeast and west-southwest of where the high pressure is located.
It can be a stable blocking pattern which lasts for an extended period of time and is quite common on the eastern edges of the North Atlantic and North Pacific.
Mind you, the weather prognosticators are foretelling some substantial rain to come!
