from late afternoon into the evening. Leave exposed summits and ridges if thunder develops.
Cloud-free timing: Best around midday at about 100%; around 67% early and 80% later.
A mixed day on Bidein a' Choire Sheasgaich: summit wind broadly 10-25 mph, with gusts 25-35 mph early in the morning (strong winds). Thunder watch from late afternoon into the evening: a small but credible risk is present. Watch for growing clouds and leave exposed tops if thunder develops. Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Any cloud sits well above the tops (base 1000-1500 m) - clear summits. Little or no rain expected.


