Below I have posted a couple of radar shots from Stormlab and GR3 (level 2 and level3 data) what the radar graphic is showing is a very well defined outflow boundy moving through northeastern Oklahoma. Interestingly enough these outflow's are not always as well defined as this one is, infact, some can be really hard to see on radar. This particular boundry was started up in Kansas by some decaying storms that had "gusted out" This gust can great an outflow or a cold pool that can sometimes help to "fire up" more storms. This boundry did not have much to work with and did not help to get any storms going until the following day but I wanted to post this because I thought the radar shot really put the outflow into persepctive.
You can see that the winds behind the outlfow have switched out of the north and some metar/mesonet stations were recording winds that were gusting over 45mhp! In the top center of the first image you can see that there was a severe thunderstorm warning for southeastern KS.
This outflow and the push of the cold front helped to bring our temps closer to normal and aided the NWSFO to drop the Heat Warning that had been placed on northern OK for almost 2 weeks. Hopefully this trend will last and and we should start getting a few systems back down in the central part of the US soon. Let's keep our fingers crossed!