Analysing terrain data
The exposure grade does not take into account objective hazards (stone fall, seracs, etc) but only the consequences of the skier falling.
Low Exposure (E1): Exposure is limited to that of the slope itself. Getting hurt is still likely if the slope is steep and/or the snow is hard.
Medium Exposure (E2): As well as the slope itself, there are some obstacles (such as rock outcrops) which could aggravate injury.
High Exposure (E3): In case of a fall, death is highly likely.
Extreme Exposure (E4): In case of a fall, the skier faces certain death.
This is one of the few areas where proper cornices will develop at any area of Northstar.
As you make the hike up and get to the top of the Sawtooth Ridge area you will be atop an area that is very wind exposed which allows for a large cornice to form and create potential snowdrops into the North facing zone.
Ski Patrol will always assess the safety of the cornice but it always wise to poke at the ridge to make sure it's safe and always be aware of unsettled snow conditions.