Summer-like warmth will develop across eastern China Sunday and last through Tuesday.
A large dome of high pressure aloft will build over Manchuria, eastern China and the Korean Peninsula Sunday. This dome of high pressure will remain over the area until Tuesday.
At the surface, high pressure will persist over the Yellow Sea and the Korean Peninsula during the same period. This will allow south to southwesterly winds to send unseasonably warm air northward.
The result will be abnormally warm weather Sunday through Tuesday with highs in the upper 80s and low 90s F (30-34 C). These temperatures are more common in June and July than they are in early May.
In Beijing, this will be the warmest weather of the year, and could even be the first 90 degree F (32 C) day of the year.
The warmth will be followed by more seasonable temperatures for the middle and the end of the week as this dome of high pressure weakens, allowing a cold front to slip through the area.