Phone weather forecast often wrong? Here's why

Phone weather forecast often wrong? Here’s why

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Nor'easter forecast to impact East Coast (long)

Nor'easter forecast to impact East Coast (long)

(NEXSTAR) – With a busy weekend ahead — and a Nor’easter, tropical storms or even a chance of snow threatening to disrupt your weekend plans, depending on where you live — you may be refreshing the weather forecast on your phone every few hours.

But when the weekend actually rolls around, the highs, lows and chances of rain you see on your phone app may be totally different. It could easily rain when it says it wouldn’t, or be way hotter than expected.

Smart phone weather apps can be wrong for two main reasons, Nexstar senior meteorologist Jim Danner explained.

First, an app is only as good as the data that’s feeding it. Often, what models are being used to populate those forecasts isn’t transparent to the average person, and the quality can........

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