Today, there is still fog or light haze in the Luxi and Lunan regions, resulting in poor visibility. The whole province is overcast with clouds, and there will be slight snow showers in the northern parts of the peninsula. The lowest morning temperatures are around -3℃ in the northwest of Shandong, central mountainous areas, and inland peninsular regions, while other areas will be around 2℃. The highest temperature across the province generally ranges from 4℃ to 10℃. It is expected that the weather will change from cloudy to clear tomorrow throughout the province, with a 3-level north wind in inland areas. Temperatures will continue to drop, with the lowest temperatures around -5℃ in the northwest of Shandong, central mountainous areas, and inland peninsular regions, while other areas will be around 0℃.
As living standards continue to improve, people's attention to the weather is increasing. However, to better utilize weather forecasts to guide daily life, it is necessary to understand the weather forecast release rules of the meteorological station. Forecasts made at different times have different contents.
According to regulations by the meteorological department, the start and end time for weather forecasts are based on 8 AM and 8 PM. Taking the city weather forecast, which people care about most, as an example, city forecasts are generally issued twice a day at 5 AM and 5 PM. Therefore, the 24-hour forecast issued at 5 AM refers to the weather forecast between 8 AM on the same day and 8 AM the next day, with the forecast language being "from today during the day to tonight". The 24-hour forecast issued at 5 PM refers to the weather forecast between 8 PM on the same day and 8 PM the next day, with the forecast language being "from tonight to tomorrow".
Since in general, the highest daily temperature occurs in the afternoon, and the lowest temperature occurs in the morning (before sunrise), the order of issuing the highest and lowest temperatures varies depending on the issuance time. The highest temperature forecasted at 5 AM refers to the daytime temperature on the same day, and the lowest temperature refers to the morning temperature the next day. The lowest temperature forecasted at 5 PM refers to the morning temperature the next day, and the highest temperature refers to the daytime temperature the next day.
For example, at 5 PM on November 20th, the 24-hour forecast for Jinan City was "Jinan, partly cloudy turning clear, 8℃-14℃", meaning that "from the night of the 20th to the day of the 21st (from 8 PM on the 20th to 8 PM on the 21st), the weather in Jinan will be partly cloudy turning clear, with the lowest temperature of 8℃ in the morning of the 21st, and the highest temperature of 14℃ during the day on the 21st." At 5 AM on November 21st, the 24-hour forecast for Jinan City was "Jinan, clear, 15℃-6℃", referring to "from the day to the night of the 21st (from 8 AM on the 21st to 8 AM on the 22nd), the weather in Jinan will be clear, with the highest temperature of 15℃ during the day on the 21st, and the lowest temperature of 6℃ in the morning on the 22nd." (Yang Chengfang, Deputy Director of the Provincial Meteorological Observatory)