Immediately prior to the landfall of Hurricane Beryl every windward island saw a significant increase in Facebook user population relative to the pre-storm baseline, most likely attributable to a significant increase in the rate of Facebook application usage combined with increasing rates of movement. Post-landfall, St Lucia, Grenada, and St. Vincent saw very large decreases, most likely attributable to power and network outages.
As of July 5th, urban centers on each island saw significant rates of population and activity increase over 1.5 standard deviations, particularly the cities of St. George on Grenada and Kingstown on St. Vincent. Each of these cities hosts the majority of sheltered and displaced population.