The purpose of a pre-hike checklist is not to ensure you remembered your poles. It is to force a structured confrontation with the specific conditions and hazards of the day before you are in them. The items in the pack are the last check — they assume you have already asked whether you should be going at all, whether the route is appropriate for the conditions, and whether your group is capable of what the day will demand.

This checklist is structured in four stages: the night before, the morning of, the trailhead check, and the ongoing trail assessment. Each stage addresses different information that is only available at that point in time.

Stage 1: The Night Before — Information Gathering

Weather assessment

• Check the mountain-specific weather forecast for your route’s altitude and aspect — not the valley town forecast. Sources: MeteoSwiss (Switzerland), ZAMG (Austria), Météo France bulletin montagne (France), bergfex.at (all Alps)
• What is the forecast temperature at summit/highest point? What is the wind speed at that altitude?
• Calculate the wind-chill temperature: this determines your layering requirement
• What is the afternoon thunderstorm probability? Convective risk rated “slight” or higher requires a noon turnaround commitment on exposed terrain
• Is there a Foehn warning? (Switzerland/Austria) — Foehn creates exceptional visibility but precedes rapid deterioration; treat Foehn days with caution even when they look perfect

Avalanche bulletin (if route crosses avalanche terrain)

• Check the regional avalanche bulletin: slf.ch (Switzerland), lawinen.report (Austria/South Tyrol), meteofrance.com (France), aineva.it (Italy)
• Note the danger level, the problem type (new snow, wind slab, persistent weak layer, wet), and the affected aspects and elevations
• Map your route’s aspects and elevations against the bulletin — not just the overall danger level but the specific problems and where they apply
• At danger level 3 (Considerable) on aspects matching your route: require a specific justification for proceeding, not just “level 3 is still manageable”

Route assessment

• What is the total elevation gain and loss? What is the estimated time? Does this fit within the available daylight window with 1 hour of margin on each end?
• Are there any technical sections (crampons, ice axe, fixed ropes) and does everyone in the group have the skills and equipment for these?
• Are there any avalanche terrain crossings? Can they be avoided? If not, can they be crossed at a time of lower risk (early morning on a south-facing slope before solar warming)?
• What is the escape route or turnaround option if conditions deteriorate mid-route?

Group assessment

• What is the least experienced/fit person’s capability in winter conditions? The route must be appropriate for them, not for the group average.
• Does everyone have the required equipment for the route’s demands?
• Who has first aid training? Who carries the group first aid kit?
• Register the itinerary with an emergency contact: route name, trailhead, expected return time, vehicle registration at the trailhead, and the number to call if you haven’t checked in by the agreed time

Stage 2: Morning Of — Final Go/No-Go

The morning check uses real-time observation to confirm or modify the previous night’s assessment:

• Sky observation: what does the sky look like? Clear and stable is positive. High cirrus moving in from the west often precedes a front within 12–24 hours. Lenticular clouds over summits indicate strong upper winds. Anvil-shaped cumulo-nimbus on any horizon indicates active convective cells nearby.
• Barometric pressure: a falling barometer (check your altimeter watch or a barometer app) indicates incoming weather. A sharp fall overnight is a strong no-go signal regardless of the morning appearance.
• Temperature check: is the actual morning temperature consistent with the forecast? An unexpected temperature drop (colder than forecast) requires reassessment of your layering system.
• Fresh snowfall overnight: any overnight snowfall on a route with avalanche terrain adds loading to the snowpack. Reassess the avalanche bulletin in the context of new snow depth.

Stage 3: Trailhead — Equipment Check

Personal equipment (each person)

Group equipment (distributed between packs)

• First aid kit (full alpine kit; waterproof bag)
• Thermos with hot liquid
• Emergency food (500+ calories above day requirement)
• Satellite communicator or PLB (for any route beyond mobile signal range)
• Avalanche rescue equipment: transceiver worn body-side, probe, shovel — all three, every person, in avalanche terrain
• Rope (if glacier travel or technical terrain)

Avalanche transceiver check (mandatory)

Before entering any avalanche terrain: all transceivers on; transmit mode confirmed; group check — stand 3m apart, each person switches to search and confirms they can detect every other transceiver; return to transmit. This 90-second group check has saved lives by catching a transceiver left on search mode from a previous day’s training.

Stage 4: Ongoing Trail Assessment

A checklist is not a single event — it is the discipline of continuous reassessment against evolving conditions. The questions to ask at every rest stop and at every terrain transition:

• Time vs. position: are we on schedule? If we are behind schedule, does the revised arrival time still allow descent in daylight?
• Weather: is what we’re seeing consistent with the morning forecast? Any deterioration from the forecast requires a turnaround reassessment.
• Group state: is everyone warm, eating and drinking adequately, and moving at a pace consistent with their reserves? Rapid pace decline in any person requires investigation.
• Snowpack observation: are we seeing recent avalanche activity (debris, crown lines)? Shooting cracks or “whumpf” sounds from the snow underfoot? Any of these are strong signs of an unstable snowpack regardless of the bulletin level.
• Turnaround time: state the turnaround time aloud at each rest stop. The group should know it and hold each other to it.