Summer Weather Settles in


 

AQUA MODIS imagery captures an infantile Morgan's Cloud extending to the northeast of Bermuda with the sun overhead. June 27th 2013
AQUA MODIS imagery captures an infantile Morgan’s Cloud extending to the northeast of Bermuda with the sun overhead. June 27th 2013

No major weather systems are forecast to sweep through the area at least through the end of the month, potentially through the first week of July. A few isolated convergence or convective showers are possible however.

As is typical of summer in Bermuda, the Bermuda-Azores high is firmly in control, extending a ridge over the western Atlantic keeping warm, humid southwesterly winds blowing across the island. This wind is generally keeping it humid with temperatures in the mid 80s for highs. That is warm enough, combined with the high humidity, to allow for convective clouds to form along and down wind of the island. This can sometimes lead to showers, or in extreme cases – thunderstorms, over the island, particularly in eastern parishes on a southwest wind. This is locally known as Morgan’s cloud.

An approaching frontal system will allow the Bermuda-Azores ridge to retreat to the east enough to introduce an increase in wind speed, winds shifting more southerly, and an increased chance for convergence based showers by Sunday. The Bermuda-Azores ridge should then flex back towards the west as the approaching frontal system breaks up along the US east coast. However, the chance for convergence based showers appears to remain elevated into the first few days of July.

A reminder, it is Hurricane Season – stay tuned to the Bermuda Weather Service and the National Hurricane Center for official forecasts and advisory products.

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