How significant is a 5-10 mb drop in pressure over a 20 minute period?

Question

I would be interested in seeing how significant a 5-10 mb drop in pressure would be at the surface, and 80 m in the air. The temporal scale would be 20 minutes. If the pressure starts to steadily increase after the drop in pressure, would this hint that the instruments are measuring data incorrectly, or is there something else at play?

Answer 1

That's an extremely significant drop in pressure at the surface and at 80m in the air. A bomb cyclone occurs when there is at least a 24mb drop within 24 hours, so that would be equivalent to a 5-10mb drop within 5-10 hours which is a lot more time than 20 minutes with the same drop in pressure. If pressure started to increase slightly afterwards, it most likely would be that other factors would have come into play, like an increase in density.