A week of severe lingering summer heat. The city center may break the record for the hottest night on a hot day. Active clouds over the southern sea. Pay attention to trends.
September 9, 2023 18:22
It will be a very hot summer for the next week. Wide areas from Kyushu to Tohoku experience extremely hot days with maximum temperatures of over 30 degrees Celsius, and even over 35 degrees Celsius. Will it break records for the slowest heatwave in central Tokyo and Nagoya? Meanwhile, well-developed cumulonimbus clouds are forming over the southern sea. As the typhoon season continues, we need to pay close attention to future trends.
Severe lingering heat, many midsummer days, and extremely hot days exceeding 35 degrees Celsius
Over the next week, the summer Pacific high-pressure system will gradually increase its prominence, and it will likely be a harsh lingering heat.
The maximum temperature exceeded 30℃ in a wide area from Kyushu to Tohoku, and in Chiba, Ibaraki, and Fukushima prefectures, where record heavy rains occurred, midsummer days continued to exceed 30℃, and in places such as Fukushima city, it was extremely hot with temperatures exceeding 35℃ There seems to be a place for the sun. During restoration work after heavy rain damage, please drink water and take breaks frequently and be careful of heat stroke.
Due to the humid air, midsummer days continue even on days marked as rain in areas such as Kyushu and Kinki. Due to high humidity, there is a high risk of heat stroke. As the temperature decreases slowly at night, it is necessary to continue to take precautions against heat stroke, just like in midsummer.
Another week to update the heat record?
This year, heat records are being broken in various places, and they are likely to be broken even further in the coming week.
Sendai City is currently breaking the record for the most midsummer days in a year, with today’s 9th (Saturday) marking the 57th day of midsummer (previously the highest: 48 in 2010).
Today, the 9th (Saturday) marks Akita City’s 47th day of midsummer days, and with midsummer days continuing for another week, it is expected to significantly break the record for the most midsummer days in a year (1943: 48).
The temperature in central Tokyo has been below 30℃ for two consecutive days, yesterday the 8th (Friday) and today the 9th (Saturday), but the temperature is expected to rise to around 33℃ in the future. This year, there are 77 midsummer days per year, which has already significantly broken the previous record (2010: 71 midsummer days), and is expected to break the record even further.
Will it break the record for the slowest day on a hot day?
The latest record for an extremely hot day with a maximum temperature of 35°C or higher has significantly broken the previous record in places such as Sapporo (until last year, the record for the latest extremely hot day in Sapporo was 35.2°C on August 8, 1999).
In central Tokyo and Nagoya, the latest record for an extremely hot day was September 12th, but it seems likely that this will be broken this year.
As the severe heat continues for a long time, please continue to take care of your health and manage your crops.
Double clouds are forming over the southern seas of Japan.
As of 3:00 p.m. on the 9th, a double cumulonimbus cloud associated with a low-pressure region can be seen over the sea south of Japan.
A “low-pressure area” is a tropical disturbance in which the pressure is lower than the surrounding area, and although cyclonic circulation (counterclockwise) is observed, its center is unclear. When the center becomes clear, the name changes to a “tropical cyclone,” and when the maximum wind speed exceeds 17.2 m/s, it is called a “typhoon.”
At present, the low-pressure area south of Okinawa is not expected to develop much, but some weather prediction models predict that the low-pressure area near the Mariana Islands will develop. Since the autumn rain front stagnates from near northern Japan to the Sea of Japan, a pattern of front + tropical disturbance = heavy rain occurs. We need to continue to pay close attention to trends.
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2023-09-09 09:22:47
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