Why is the weather forecast in Beijing inaccurate?

The ancients said, "there are unexpected events in the sky." Since it is a forecast, it is impossible to be 100% accurate, but the Beijing Meteorological Observatory has been somewhat disappointing in the past two years.

Last year, there was a sudden heavy rain in Beijing, which caught the flood control department and the people of Beijing off guard. The meteorological director explained that the tall building in front blocked the signal, which led to misjudgment.

Mai Sha is approaching this year, and the Meteorological Observatory predicts that there will be a rainstorm. As a result, the whole city was preparing for war, but "wheat" didn't come. The Meteorological Observatory confirmed that this was a rainy day.

It's really annoying I think there are human factors here. If all the people in the Meteorological Observatory could really put the people's interests first, I'm afraid there wouldn't be such a joke of making false reports.