Gales developed on Friday as a small low pressure passed just under 80 km to the north. This low was one of a series of small-scale low pressure systems that tracked from west to east along a quasi-stationary front near Bermuda last week.
Ahead of Friday’s low, that quasi-stationary front lifted northward across the island with patchy light rain showers on Thursday night. This was accompanied by an increase in temperatures and humidity as southwesterly winds strengthened early Friday morning. Southwesterly winds briefly increased to gale force (sustained >34 kts) with unofficial gusts over 45 kts reported at automated weather observing sites. Winds then dropped off slightly, veering through to northerly as the front moved across Bermuda from west.
Cooler air then blew in as winds veered to the north on renewed gales behind the front. Storm force (>48 kts) gusts were recorded around the island, with a peak official gust of 49 kts at the airport, the second highest official gust observed in May since 1949*. High winds resulted in diverted flights (Royal Gazette/Bernews), delayed start to Relay for Life (Bernews), and several boat incidents (Bernews).
Very little rain fell from this system. Much of the shower activity was confined to the north of the island (along the front near the centre of the low), and south of the island (along the front). Pressure fell to 1000.7 hPa as the low passed the island, the lowest pressure observed in May since 2007**.