"Just how hot can plasma get? Well, since we know that the sun is made of plasma, it's obvious that the stuff can get pretty hot. But for decades, scientists have been puzzled as to why the outer layer of the sun's atmosphere, called the corona, was so hot -- hotter, in fact, than the surface of the sun. Data from spacecraft has shown that plumes of plasma called spicules emanate from the lower atmosphere of the sun. While we'd call most of them pretty hot at tens of thousands of degrees Celsius, those spicules are merely a bit toasty when you compare them to other spicules that register temperatures of at least 1 million to 2 million degrees Celsius (1.8 million to 3.6 million degrees Fahrenheit) [source: Matson]. While these ultra-high heat spicules aren't as common, some scientists believe they occur often enough to heat the corona. Scientists don't know why they form, however.
While the plasma on the sun is the hottest we know of in the natural world, manufactured plasma is much hotter. Several machines called tokamaks create fusion reactions in labs around the world. The ITER tokamak, a fusion machine, is currently under construction in France. ITER, an international coalition of scientists from six countries and the European Union, hopes to use the tokamak to test ideas for fusion energy production. The tokamak will use magnetic forces to heat two hydrogen isotopes to more than 150 million degrees Celsius (about 270 million degrees Fahrenheit)."
http://curiosity.discovery.com/question/how-hot-is-plasmaNow that's pretty damn high, and if you have two of those going off? Not only would it cause severe damage to the actual part of the station (Depending on what the heat shielding is made out of and how thick it is), and multiply that area of effect by a factor of two? Even some pretty powerful personal shields wouldn't be able to hold up that well to heat and discharge that intense.