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。
However, if weather conditions change significantly from day to day, the persistence method usually breaks down and is not best forecasting method to use.
然而，如果天气状况一天天地显著变化，持续性方法常会出错，所以这不是制作天气预报的最佳方法。
However, if weather conditions change significantly from day to day, the persistence method usually breaks down and is not best forecasting method to use.
然而，如果天气状况一天天地显著变化，持续性方法常会出错，所以这不是制作天气预报的最佳方法。
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