A strong continental air mass has brought with it lower temperatures, with Tamsui recording 10.9 degrees Celsius twice on Tuesday night and Wednesday morning, a new low for low lying areas this year, the Central Weather Bureau said. The strongest cold front so far this season sent temperatures as low as 13-14 degrees in northern Taiwan and Yilan in the northeast, 11-12 degrees in coastal areas of those regions and 16 degrees in southern Taiwan, as well as Hualien and Taitung in the east on Wednesday morning, according to the bureau.