WHY THE SNOW STAYS NORTH: A GUIDE’S LOOK AT THE GEOGRAPHY OF RELIABLE HELISKIING

For two seasons running, ski operations in southern BC have been dealing with rain when they expected snow. Atmospheric rivers have arrived more often than they used to, freezing levels are climbing sometimes to the ridge top, and operators that built their seasons around reliable cold have spent more time managing rain crust than fresh powder.

Northern BC has had a different story. While the south struggled, the snowpack at Last Frontier held. This year we were close to six metres on the glaciers and three and a half metres at tree line. Last spring, we were still skiing knee-deep powder on the final days of the season.

The reasons are geographic, and they’re worth understanding.

A Question of Latitude

The clearest place to start is on a map. The Canada-US border sits at 49 degrees north. Revelstoke, one of the most established heliskiing zones in the world, sits at 50. Bella Coola, further west and a strong operator in its own right, sits at 51. Last Frontier Heliskiing’s tenure runs through territory at 56 degrees north, butted up against the Alaska border.

Six degrees of latitude doesn’t sound like much on paper. In practice, it changes everything about how a storm system arrives.

“When the warm storms come in from the South Pacific, they tend to push into southern BC first,” says Cliff Umpleby, Last Frontier’s Director of Operations and Lead Guide. “Then they start working their way north. We tend to survive those a little bit better than some of our friends down south.”

Warm storms from the South Pacific are the structural problem heli skiing in British Columbia is wrestling with right now. They used to arrive once or twice a season and were called pineapple expresses. The current term, atmospheric river, has shown up in news coverage because the events themselves have shown up more often. “Now that seems to be happening sometimes three, four, five times a season,” Cliff says.

By the time those storms reach Last Frontier’s latitude, they’ve usually cooled enough that what was falling as rain in the south is still falling as snow up north. Or if it does rain which it can, it is usually short lived.

Coastal, Continental, and the Zone in Between

The geography gets more specific from there. The way snow actually accumulates in a tenure depends on whether the snowpack is coastal or continental.

A coastal snowpack is warm, and deep. It sits closer to the ocean and is fed by maritime storms that carry heat and moisture inland. A continental snowpack is shallower and colder, the result of drier inland air systems. Each behaves differently. Coastal snow tends to be stronger because of its depth, which can be easier for guides to manage. Continental snow can be thinner and weaker, which means a more conservative approach to the avalanche conditions it produces.

Last Frontier sits in the transition between the two. Highway 37 runs roughly up the middle of the tenure. To the east are the Skeena Mountains, which lean continental. To the west are the northern Coast Mountains, which lean coastal. The result is operational flexibility that few heli ski lodges in Northern BC have. When conditions favour one snowpack over the other, the terrain to ski into is already there.

Why Freezing Levels Matter More Than Total Snowfall

When people ask about snow reliability, they tend to ask about volume. How much fell. The more useful question is what fell, and where the freezing level sat when it did. “Maybe 10 or 15 percent more of those storms are coming in as rain instead of snow,” Cliff says. That percentage is the whole story. If a storm crosses the freezing line halfway up a mountain, the upper elevations might be getting 30 to 40 centimetres of fresh snow while the lower elevations are getting nuked. Operations that live and die by tree-line skiing feel that shift fast. Operations that can land high in alpine terrain feel it less.

Last Frontier’s tenure is heavily glaciated. About 7,800 square kilometres of skiable terrain sits in or directly next to glaciated zones. The glaciers themselves keep the local temperatures lower than they otherwise would be. Cliff has a name for some of those zones. “We’ll head up to the west and go, hey, we’re going to the icebox today.”

That high-elevation access matters when a warm storm passes through. For anyone chasing deep powder heli skiing in Northern BC, that’s the equation worth paying attention to. Some of our runs are 2,400 or 2,500 metres long without a tree in sight. The geography gives us somewhere to go.

What 29 Seasons Show

Cliff has been guiding in this terrain for 29 years. The change he describes is incremental, not catastrophic. Temperatures during operating days that used to run consistently around minus 15 now run closer to minus 10 or minus 7. Snowfall totals are not what they once were. The glaciers are receding visibly enough that runs he was skiing 10 years ago are now hitting rocky moraine where there used to be 50 metres of ice.

These observations track with what climate scientists have been publishing for years. They are not predictions. They are what an experienced guide sees on the ground when he stops to look.

Cliff is careful about what the long record actually tells you. Twelve years ago, a peer told him heliskiing would be gone within a decade because of climate change. This past season, Last Frontier was operating in six metres of snow.

“That wasn’t right,” Cliff says of the prediction. He says it without satisfaction. It’s not a vindication. It’s a reminder that the shifts are real but they don’t follow simple timelines.

Looking Forward

The reliable heliskiing of the next 20 years will live in higher latitudes, higher elevations, and tenures with real alpine access. Last Frontier Heliskiing fits all three.

None of which makes the next decade easy. The storms arriving at our latitude are warmer than they used to be, the freezing levels are higher, and the glaciers are receding. But the geographic factors that made the tenure work for 30 years are the same ones making it more durable now than tenures further south.

The map of reliable heliskiing is being redrawn. Cliff isn’t predicting where it ends up. He’s describing what he sees from where he stands, which happens to be one of the last places on the map where the snow is still doing what it used to do.