Friday, June 13, 2008

Storms and more storms

Sorry for the late update this morning but I've been dealing with some severe weather at the station. We had an outflow boundary early this morning from some thunderstorms which formed this last night and early this morning across the Chicago area. This boundary drifted east and we saw several cells, a couple of severe cells between 5:45am and 7:00am. This is not the main event. A line of thunderstorms across a boundary of low pressure will redevelop this afternoon. It looks like these thunderstorms might be severe as well late this afternoon. Here's what to look for if you are watching the radar. Look for a line which we refer to as a squall line of thunderstorms right along the boundary of low pressure. While these fast moving storms can cause some severe weather, the problem with them is that they usually see tops that are not fully developed. These storms with the lower tops can spawn very small tornadoes and some gusty winds and hail. What I'm more concerned about are the storms out ahead of this squall line. These can be large supercell thunderstorms which have more room to grow and can spread out and develop without winds from the front to cut off the development.

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