Record-breaking heatwave hits Hokkaido, Japan


An unprecedented heatwave is sweeping over Hokkaido, Japan, with numerous all-time records falling almost every day. Very high temperatures are expected to continue over the next 14 days.

One of the most notable records on July 27 was registered in Asahikawa, holder of the coldest temperature in Japanese history.

The city registered 36.2 °C (97.1 °F) on July 27, breaking the previous record of 36 °C (96.8 °F) set on August 7, 1989.

Other notable records include Teshio in the Rumoi region which registered 33.8 °C (92.8 °F), breaking the previous record of 32.5 °C (90.5 °F) set on August 2, 1982; Ishikari Numata in Hokkaido Sorachi which registered 36.5 °C (97.7 °F), breaking the previous record of 35.7 °C (96.2 °F) set on August 7, 1989; and Kimobetsu in Shiribeshi region which registered 34.1 °C (93.3 °F), breaking the previous record of 33.4 °C (92.1 °F) set on August 10, 1994.

The Japan Meteorological Agency (JMA) has issued an early warning for very high temperature from August 1 to 9, affecting almost the entire country.

Image credit: JMA

This image shows categorized five-day average temperatures from eight days ahead, with red and blue indicating values expected to be very high and very low, respectively, at probabilities of 30% or more. Orange and light blue indicate values expected to be high and low, respectively. Appearance ratios for high/very high, normal and low/very low temperatures are 33% in the relevant climatology. The terms “very high” and “very low” refer to temperatures with climatology appearance ratios of 10%. Credit: JMA

Featured image: JMA


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