Why didn't the precipitation forecast of the central satellite cloud picture 1-7 days be updated?

1, the weather forecast uses numerical forecast models, and these models have their own update cycle, once a day or once every few hours. If the update cycle of the forecast model does not cover the relevant time period, the forecast will not be updated in time.

2. The precipitation forecast of the central satellite cloud image is based on a specific range and time period. If the relevant time period is not within the forecast range, the forecast will not be updated.