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A thunderstorm in spots
Sunshine and warm
An afternoon thunderstorm
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of sunlight, then sets at
of moolight, then sets at
Labor Day weekend traditionally marks the unofficial end to summer, but the weather has another idea in mind around Pittsburgh with a prolonged stretch of steamy air underway. more >
Dec 20, 2012; 5:00 AM ET
The 540 line is often used by meteorologists to determine the chances of rain vs. snow.