Sunday, August 7, 2011
8/7 - 5:15pm - More Storms in Our Future
I've been watching the radar and satellite image for the past couple hours and it appears that ongoing storms dropping southeastward near Indianapolis may send out a some outflow boundaries toward Louisville over the next few hours. Outflow boundaries are like miniature cold fronts created by the cool air flowing out from a thunderstorm's downdraft. They also can cause storms to develop because they are a source of lift and that's why they're so important when forecasting short-term storm development. Since we have a little bit of wind shear and a very unstable atmosphere over the Louisville area right now, a kick from one of these southward-moving outflow boundaries may cause a few isolated storms to develop this evening. Storms may also form without the boundary if another small-scale feature or surface heating gets things going first. So, a vast majority of the area will stay dry, but if you happen to get under one of these wildcard isolated storms get ready for some heavy rain and wind.