Paul noted the current sunny conditions, saying: "The current spell of fine weather is due to a blocking area of high ...

The great weather we're currently enjoying is down to a a blocking area of high pressure sitting just to the north of Ireland ...

The omega block creates stagnant weather, leading to heavy rain, floods, and temperature extremes across the U.S.

It is defined by a powerful high pressure area with an area of low pressure "underneath" or south of the high pressure.

Dr. Alan Black from SIUE explains how blocking patterns in weather can lead to multiple days of rain or extended dry spells.