Tom,

>We were able to plot the path of hurricane Donna with great accuracy by using barometer readings from all over Florida and transmitted by Amateur Radio. Hurricanes take the path having the lowest barometer readings we rationalized. I wonder if the weather service uses this information to plot hurricane paths?

I don't know, but it was VERY interesting to see that the local Orlando TV stations were correctly forecasting landfall near Fort Myers LONG before the National Hurricane Center, which was for an hour after the local reports aired still showing the path coming into Tampa Bay.