Weather

Decide when storms, flooding, wind, heat, visibility, or ice make the original route or its backup unsuitable.

Read gusts against exposed terrain, prepare before leaving shelter, and turn back when balance or communication deteriorates.

Combine route timing, shade, clothing, UV-protective sunglasses, and labelled sunscreen use on exposed trails.

Check differences in elevation, shade, trail surface, access, daylight, and the conditions on the return.

Choose a rain-suitable route, vent layers, protect dry insulation, and use short, sheltered breaks.