Heavy Rains Summary


A well anticipated multi-day heavy rain event last weekend ended with a May’s worth of rain nearly everywhere. A band of deep, tropical moisture with total precipitable water amounts near 2 inches aligned over the island from Thursday night through Saturday afternoon. A cold front, turned stationary front remained draped nearby with associated small scale areas of low pressure developing along the front leading to isolated and brief periods of enhanced winds. The front and lows led to persistent shower and thunderstorm activity through much of the weekend resulting in some event disruption and nuisance flooding.

Officially, 3.82″ of rain was measured at the Bermuda Weather Service as a result of this rain storm. This agrees well with island-wide reports generally near 4 inches, including my PWS which measured 3.95″. In an average May, the island sees roughly 3 inches of rain.

20160505-20150507-Rain
Distribution of rain across Bermuda showing a widespread heavy rain event. An islandwide average of 3.86″ fell. Each circle represents one observation. The shading is likely less reliable in areas of few observations. Observations from Bermuda Weather Service Facebook, Wunderground, and Davis WeatherLink.
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