Thursday's weather update from WTOC meteorologist John Wetherbee

May 2, 2013 

Showers mainly south of the Altamaha will move farther north into this evening. That means more clouds (a little sunshine peaking through), gusty east winds -- up to 30 mph on the barrier islands -- and below normal temperatures. As a result of that onshore flow, there is a high surf advisory for the Georgia and Carolina beaches, and a moderate-to-high risk of rip currents. Some minor beach erosion is possible due to the long duration of these onshore winds. Our blocking high off the Virginia coast continues to slide out into the Atlantic very slowly. Two upper-levels lows are now working together to push that high along and out of the way. Here's the bad news: a wet weekend is ahead. Here's the good news: the heaviest rains and potential storms stay south of us. And here's the better news: this will take about seven days clear completely, but we do see the light at the end of the tunnel. The 30 percent chance of showers this afternoon is mainly along and south of I-16 and should end by 9 p.m. Count on drizzle overnight, and breezes. Friday has a 30 percent chance of showers again, with better coverage. There will be long, dry periods, though. Saturday will still be cloudy and windy, with east winds gusting to 31 mph again. And there's a 50 percent chance of showers mainly after 2 p.m. Sunday will be cloudy and windy as well, with a 50 percent chance of showers and thunderstorms, as we are closest to the "parent" low tracking along the Florida panhandle. As these lows wander over the lower Mississippi Valley and Gulf of Mexico to end the week -- before finally merging with the jet stream over the weekend to get moving again -- we'll hang on to the wet threat. Meteorologist John Wetherbee, CBM

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