TAIPEI (Taiwan News) — Former Central Weather Administration (CWA) Director-General Cheng Ming-dean (鄭明典) on Tuesday (July 2) said that abnormally high sea temperatures caused the recent heat wave in Taiwan.
In a Facebook post, Cheng said the sea temperatures around Taiwan are currently 2 to 3 C higher than the climate norm. According to Cheng, this diminished the normal cooling effect of sea breezes as a strong Pacific high-pressure system brings greater solar radiation.
From Taipei to Pingtung County, 15 weather stations reported high temperatures of over 37 C. The hottest temperature of the day—38.4 C—was recorded at Yunlin County's Dounan Township station.
Cheng shared a map showing abnormally high sea temperatures on June 30. Cheng said this reduced the efficiency of sea breeze regulation, while the strong Pacific high-pressure system resulted in clear skies, weak winds, and high temperatures.
The CWA said the weather will remain hot on Tuesday, with temperatures around 32 to 36 C. There is a chance of highs of 37 C in central and southern Taiwan. When outdoors, the public is advised to protect themselves from sun exposure and stay hydrated to prevent heat-related illnesses.
It added there is a high chance of afternoon rain from central to northern Taiwan and in mountainous regions, as well as the possibility of localized downpours. In some areas, the rain may last longer and continue into the evening.