Using guidance from numerical products from both global and limited area models, forecasters can now issue weather forecasts several days ahead with reasonable confidence.

透过使用全球性和有限区域预报模式的数值产品，天文台对于准确发布未来数日的天气预测，现在已具一定信心。

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To improve upon persistence forecasting, companies rely on numerical weather prediction (NWP), the approach used by meteorologists to produce national weather forecasts.

为了改进持续性预报，企业们依靠数值天气预报(NWP)，这是一种气象学上用来进行天气预报的方法。

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