Forecast confidence: Thunderstorm timing is inherently uncertain and may shift by several hours.
from late afternoon into the evening. Leave exposed summits and ridges if thunder develops.
Cloud-free timing: Cloudy early, clearing later.
A mixed day on Sgùrr nan Clach Geala: summit wind broadly 10-30 mph, with gusts 25-35 mph early in the morning (strong winds). A meaningful thunderstorm risk is indicated from late afternoon into the evening. Avoid committing to exposed ridges if storms begin to build. Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base around 300–600 m in the morning, lifting to 900–1200 m around midday and 1400–1700 m by late afternoon. Summit cloud should lift later, bringing a better chance of clear views. Little or no rain expected.


