Episode Details

Elk hunting thermals are one of the most misunderstood parts of hunting western elk — and if your entire strategy is “thermals rise in the morning and fall in the evening,” you’re going to get busted.

In this episode of Backbone Unlimited, Matt Hartsky breaks down elk hunting thermals for beginners and explains what actually controls thermal air movement in the mountains. Thermals aren’t controlled by the clock. They’re driven by ground temperature, sunlight, shade, slope angle, vegetation, terrain features, cloud cover, and the prevailing weather wind.

You’ll learn why cool overnight ground creates downhill thermals, why those thermals don’t automatically reverse at daylight, and what must happen before warming terrain begins pushing air uphill. Matt also explains why the thermal transition period can create dangerous swirling conditions in both the morning and evening.

This episode also covers how prevailing wind interacts with thermals, why even a light directional wind can overpower weak thermal currents, and how crosswinds can create opportunities to approach elk from slightly above, below, or across the slope while keeping your scent away from them.

Matt shares real hunting examples showing how dramatically thermals can change across the same hillside. Sunlit terrain can produce rising air while a nearby shaded pocket produces falling air — sometimes within only a few yards. Cloud cover, timber, draws, slope severity, and vegetation can all influence what your scent is actually doing around elk.

You’ll also hear the story of three bachelor bulls approaching a cow call in late morning conditions. Even though the broader hillside was warm and the prevailing wind appeared favorable, the bulls entered a shaded timber finger roughly 40 yards below and immediately caught the falling thermal.

If you’re trying to understand how thermals work for elk hunting, how wind affects elk hunting setups, when thermals rise and fall, how to keep elk from winding you, or how to use milkweed and wind indicators effectively, this episode gives you a practical framework you can use in the field.

The biggest takeaway: thermals are temperature-driven, not time-driven. The mountain doesn’t care what your watch says. Learn to read the ground, sunlight, shade, terrain, vegetation, and actual air movement where you’re hunting.

For even more elk hunting strategy, terrain analysis, calling, elk behavior, wind and thermals, and complete hunting systems, check out the Backbone Unlimited Elk Hunting E-Book Series, schedule an Elk Hunt Plan Audit, or join TEAM Backbone at BACKBONEUNLIMITED.COM.

Train harder. Hunt smarter. Never settle.