Rain rain…
Saturday, August 22nd, 2009Friday afternoon several lines of storms continued to come through our area dropping about 2 inches and producing some crazy awesome lightning. Right now (Friday Night) another line of thunderstorms is passing through our area with more downpours and lightning. Some may wonder why this continues to happen when its not a very large system but just individual lines of storms. Well I have an answer.
There is a mid-latitude trough located above the Great Lakes and it is currently charging south and east. As it moves south it surges up all the moisture and clouds that are situated in the south right near the Gulf of Mexico. Normally something like this would move through fast with a cold front and then our atmospheric conditions would change right after the thunderstorms move through. Well, Hurricane Bill is inhibiting this from happening. It will not let the airmass move through. The two systems act as a funnel and in the middle of the funnel is the East Coast. Pretty cool interaction.
To better understand what I am talking about here is some water vapor imagery of the U.S. The black areas are areas of little water vapor and the white is the opposite. There are two black areas to the west and east of us. The one to the west is the drier air mass and the one to the east is Hurricane Bill’s outflow. Once Bill moves through this interaction will end and so will the thunderstorms.
Saturday expect the same thing. Thunderstorms will be off and on almost all day. I love the interesting weather!
Check for severe weather updates later today.

