Alberta Thunderstorm Forecast

You don't see any orange because thunderstorms could occur across the entirety of the province on Thursday - save for possibly the extreme SW.  Widespread thunderstorm activity can be expected across much of Alberta on Thursday as an upper level ridge begins to break down. Areas with moderate instability and ample shear for organized convection will see an increased threat of severe weather, including large hail and damaging winds. As of 00Z Wednesday evening, an upper level ridge axis was in place roughly along the 115W parallel over the middle of the province. A strong vort max was noted over northern Haida Gwaii on water vapour imagery, with a weaker lead wave supporting thunderstorms over the central BC interior. Generally slack flow was noted at the surface beneath the ridge, with variable, light winds and dewpoints in the high single digits to low double digits across much of the middle third of the province.   During the overnight period into Thursday morning