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Wednesday April 23, 2008 at 4:44 pm
Spring Ups and Downs


A ridge of high pressure will continue to build across the Southeast the remainder of the workweek.  Expect mostly to partly sunny skies and much warmer conditions.  Aside from an isolated shower on Thursday afternoon, things should remain dry. 

You may be asking yourself... Why does a upper level ridge of high pressure bring warmer and usually drier weather??? An upper level ridge is nothing more than an elongated area of high atmospheric pressure. It occurs both at the Earth's surface and at higher altitudes. Air tends to sink under a ridge, which inhibits clouds and precipitation development. As air sinks it also warms up.  Therefore temperatures are usually warmer when a ridge is overhead.

As we head into the weekend the ridge will break down, allowing a cold front to arrive.   This will bring us a good chance of showers and thunderstorms (especially Saturday afternoon).  This front looks to cool us down and keep things on the unsettled side for least the first half of next week.

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