Stòiridh chruinneil na sìde tro phrosbaig nan Eilean Siar le Angela Nica'Ghobhainn. Our relationship with the weather. Continuing the journey in Barra, a lifeboat captain explains how he copes with heavy weather; the Met Office show how the weather forecast is created; and there's an eyewitness account of how fog caused an air crash in Vatersay during the Second World War.