Sunday's weather will be very different from Saturday's

Saturday's weather could not have been any better with lots of sun and low humidity.  Sunday will be a whole new ball game as a high pressure ridge builds in and brings hot temperatures in the low to mid 90's back to the area.  Heat index values could top 100 in spots.  Late in the day an upper disturbance will move near the area mid to late afternoon.  As a result we'll have our best shot in quite a while at scattered thunderstorms over the area late afternoon into the evening.  Some storms could be strong or severe with: damaging winds, torrential rain, and lots of lightning.