Iāve had to look this up and Iām still not sure if itās a glitch in my data. But during the sting jet event at 18:22 this evening when a wall of frightened winds hit our area and blew the power lines spectacularly the pressure for a few minutes on my weather station went from 971mb to 915mb before recovering to 975mb. Is this possible?
Originally Posted by: roadrunnerajn
I'd suggest contacting TORRO, as they'll know - the only thing I can imagine that would cause that would be a tornado! That'd match your description of an intense wall of wind and the power lines flashing too.
https://www.torro.org.uk/contact
The stingjet here in 1987 didn't, as far as I recall, lead to a massive lowering of pressure - there was a rapid fall and rise, but nothing like that. (Here's a barograph reading from Surrey - not Kent, but I suspect it would be similar here). When the power went off here in 1987 there was no sparking either, just a "pop" and pitch blackness - and that's despite all the roads having overhead power lines, and some high voltage lines in the distance.Ā
Google's "AI" says:
Yes, air pressure drops dramatically in the center of a tornado, creating a low-pressure core that contrasts with the higher pressure outside, driving the intense winds and forming the vortex, though the extreme winds and debris cause most structural damage, not the pressure change itself. This rapid drop causes ears to pop and can be significant, sometimes hundreds of millibars, with the lowest pressure often coinciding with the strongest winds
Edited by user
09 January 2026 03:24:28
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