KG4YNS
04-24-2007, 05:00 AM
Now, if you have seen a lot of tornadoes you know exactly what I am talking about. A lot of you have seen tornadoes that are on the ground but do not have a condensation funnel extending from the parent thunderstorm base all the way to the ground. Someone correct me if I am wrong. I believe the reason the condensation funnel is not always in contact with the ground when the tornado is classified, has to do with rotational speed. Theoreticaly, as rotational speed increases, pressure begins to lower. as pressure begins to lower, depending on the quality of moisture in the atmosphere, it becomes easier for water vapor to condensate do to the water vapor pressure level. Now, if their is a lot of moisture in the air, than the pressure in the tornado does not have to lower to much for the condensation funnel to condensate out all the way. This would also mean that the rotational speed of the tornado does not have increase to much. But if the moisture quality is low, then the rotational speed of the tornado would have to increase significantly to lower the pressure effectivly enough to alow the water vapor to condensate out. Please forgive me for any miss-spelling of my words.