Michael McNeil (@NortonIceman)

As a cold front approaches a warm front, the Occlusion becomes an Occluded Front, these things are as common as volcanic eruptions. The signal for a release is the temperature increase, followed by a larger than 5.5 earthquake: https://www.emsc-csem.org/Earthquake/?view=1 Thereafter rapid cooling takes place as the venting eruption fills the upper atmosphere. Water vapour will not register on meteorological sites. The new stream may be spotted by aircraft or satellites. In reality all you have giving advice about these things is Yours Truly and an handful of less well informed eccentrics with the same sort of illnesses. You can write it off as psychsomatics if you like most of us do, it is impossible to find out why you feel permanently bad when the weather changes. Think about it. Pressure system L994 South of Greenland on the same latitude as Spain is in eruption and producing swarms of earthquakes. Pressure system L964 on the coast of Greenland was about to erupt at Noon 17th March. By Midnight the 18th it had thrown off Pressure sytem L975 to the NE of Greenland but the remaining cyclone L966 is still in place, because that is where the Dustification Process is taking place.