I think in the 910-940mb region for hurricanes is what seems to be the case
from various news reports when they are taking place I have seen.
"M. Redecke" wrote in message
om...
Hello Simon !
I collected some data he http://www.bohlken.net/airpressure.htm
btw, uk got a very low air pressure 11.1.2005. nw of uk, measured by a
buoy: 946 hPa ! i was very surprised...
Michael