Tuesday's weather update from WTOC meterologist John Wetherbee

April 30, 2013 

Peek-a-boo sunshine and more heavy clouds with just a slight chance of a late-day thunderstorm -- hey, this feels more like summer without the 90-degree temperatures! We end April with warm and humid conditions. For the month, we will end just below-normal for temperatures and above-normal for precipitation (1.08-inch surplus for April). Long-range forecasts keep May about normal on temperatures and rainfall -- and May rainfall is similar to April, just about 2.7 inches for the month would be average. This afternoon, a new surface low has developed, just as advertised. It's right off the South Carolina coast with most of its moisture on its west side. The greatest risk of any late-day storms would be over the Lowcountry until that low slides up the East Coast. Then the pattern gets quiet, even stable over the next several days. High pressure will reach down the eastern slopes of the Appalachians and waves of low pressure will develop along the Gulf Coast and pass just south of us. That keeps us with more clouds than sun, a slight risk of thunderstorms and below-normal afternoon highs. The rain chances do go up a little higher for the weekend -- up to 30 percent from Friday through Sunday. Get comfortable with the increased humidity; at least the risk of severe weather is much lower. Meteorologist John Wetherbee, CBM

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