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Cross your fingers: 15-day eclipse forecast for WNC not looking good

The 15-day forecast on The Weather Channel app now includes August 21, 2017 the day of the "Great American Eclipse" and the initial news isn't good. (Photo: MGN / Donna Schichler / MGN)

The 15-day forecast on The Weather Channel app now includes August 21, 2017 the day of the "Great American Eclipse"--and the initial news isn't good.

The forecast for Topton, N.C., a city near the center line in the path of totality in N.C., for example, calls for "showers early then scattered thunderstorms developing later in the day."

The chance of rain is 40 percent.

But--"A forecast's accuracy drops significantly after three days," meteorologist Jason Boyer tells us. "This is due to the complexities of our atmosphere and the physical processes involved in creating weather."

Supercomputers are sophisticated enough these days to produce much longer-range forecasts than they could, say, a decade ago. However, this doesn't always equate to greater accuracy.

"Anyone, including myself should take any weather forecast beyond five to seven days with a big grain of salt," Boyer said. "Getting specific on the exact time of day rain or snow may fall, and exact temperatures, is extremely difficult two weeks in advance."

To check our local seven-day forecast, click here.

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