The air pressure here has dropped by about 20 or 25 millibars today. As you can see it’s gone from change/fair to rain. And it’s pouring it down outside. The wind is very gusty and its battering our trees and hedges. The hanging baskets are rocking on their brackets. I might tap the barometer and see if it drops further. This is a mechanical barometer so it needs to be tapped sometimes to get an accurate reading.