Upwards of 30 vehicles were involved in a massive collision that occurred before noon on Friday.
Police say the incident is northbound on the QEII at the junction with Highway 581, east of Carstairs.
"One driver was transported by ground ambulance with unknown injuries," an RCMP release stated.
EMS confirmed that the individual was a woman in her 80s, who sustained serious injuries. She was transported to a Calgary hospital.
According to the RCMP, two southbound lanes and one northbound lane are now open on QEII at Highway 581. Drivers are asked to exercise extreme caution as weather conditions are hazardous.
Police believe that emergency personnel will be on the scene for another hour.
For a look at nearby road conditions, check here.