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Extremely Wet Weather Will End Before Olympics Opening

By By Meghan Evans, meteorologist
July 19, 2012, 10:19:56 AM EDT

A very wet pattern that has been in place in London should end just in time for the start of the 2012 Summer Olympics.

London received above-normal June rainfall with damp, cool weather staying put into July as well. Rainfall throughout the UK during June 2012 averaged 5.72 inches (145.3 mm), twice what is typically measured for the month of June.

The normal rainfall for the entire month of July has already been received in London in the past two weeks.

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Many storms have been developing and stalling over the United Kingdom, unleashing the above-normal rainfall. A trough of low pressure dominating the northeastern Atlantic has been responsible for keeping the stormy weather in place.

The wet weather pattern will persist through the beginning of the week of the Olympics opening ceremonies on July 27, 2012. Some travelers heading to the Olympics may experience slower travel and occasional delays due to rain.

"The pattern will ease a little during the Olympics," AccuWeather Expert Senior Meteorologist Jason Nicholls said.

While rainfall is not out of the question here and there during the Olympics, it will be less extreme than London has been receiving recently.

There will be a quicker west-to-east flow across the UK with faster-moving storms, said AccuWeather Senior Meteorologist Alan Reppert.

With less extreme rain forecast, temperatures should be near to slightly below the normal high of 71 degrees F (21.7 degrees C).

Unlike the 2008 Summer Olympics held in Beijing, China, there should be no issues with poor air quality. London's frequency of getting hit by storms helps to clear out pollutants.

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