During his time as the Governor of the Windward Isles Llewelyn oversaw the response to the 1902 eruption of La Soufriere Volcano on St. Vincent. On the morning of the climactic eruption he left the island of St. Vincent (his usual residence) for a meeting in St. Lucia, but made some observations of activity as his ship sailed past, and later returned. This impacted trust in his governance around recovery and response to further explosions. He later returned £33,000 of the £77,000 raised for relief efforts as decision-making around this was slow and acrimonious. The needs of the refugee populations were not met, and many were encouraged to move overseas for employment.