The Japan Meteorological Agency announced that the Kanto-Koshin and Tokai regions have entered the rainy season, with cloudy and rainy weather expected for the next week. The start of the rainy season for Kanto-Koshin is on par with the average year but 16 days later than last year, while Tokai is one day later than average and 21 days later than last year.

Heavy rainfall, including linear rainbands, has prompted flood special warnings and emergency evacuation orders in parts of Wakayama and Tokushima prefectures in Japan. The Japan Meteorological Agency held a press conference to address the severe weather, though it noted issues with the timely release of linear rainband information.

The Japan Meteorological Agency issued a warning for a linear rainband forming in central and southern Okinawa Island, bringing extremely heavy rainfall and significantly increasing the risk of landslides and floods.

A regular evaluation meeting by the Japan Meteorological Agency concluded that no particular changes have been observed regarding the possibility of a massive earthquake in the Nankai Trough.

Japan has concluded its one-week aftershock warning period, with the Cabinet Office and Japan Meteorological Agency holding a press conference to announce the end of the alert.

The Japan Meteorological Agency has adopted a new word to describe extreme heat, acknowledging that existing terminology no longer adequately covers the increasing number of days exceeding 40 degrees Celsius in recent years.

Typhoon No. 4 has formed far south of Japan, and the Japan Meteorological Agency is urging the public to pay attention to future updates.

The Japan Meteorological Agency announced on the afternoon of the 19th that "cherry blossoms have bloomed in Tokyo."

The Japan Meteorological Agency (JMA) will begin using data from 18 coastal seafloor seismometers in the Nankai Trough region starting March 12 to enhance its earthquake early warning system, potentially issuing warnings up to 6 seconds faster.

Due to increasing record heat, the Japan Meteorological Agency has decided to create a new name for days when the maximum temperature exceeds 40 degrees Celsius, with public input to be gathered for its use starting this summer.

A low-pressure system and front are bringing very heavy rain to Japan's Amami region in Kagoshima Prefecture, prompting Level 4 landslide warnings. The Japan Meteorological Agency warns of localized intense rainfall in Western Japan through June 8, urging caution for flooding and rising river levels.

Japan's Shikoku region has officially entered its rainy season, three days earlier than the average year, as announced by the Japan Meteorological Agency.

A wide area of Eastern and Western Japan is experiencing unstable atmospheric conditions, with warnings for localized heavy rain, landslides, river swelling, lightning, and tornadoes issued by the Japan Meteorological Agency.

Developing low pressure systems have brought strong winds to various regions of Japan, including Tohoku and Kanto, causing widespread damage. Hokkaido is expected to experience continued strong winds until the 6th, with the Japan Meteorological Agency urging caution against gales.

Following a magnitude 7.7 earthquake off Sanriku, the Japan Meteorological Agency has issued a "Hokkaido-Sanriku Offshore Post-Earthquake Warning," indicating an increased possibility of a mega-earthquake along the Chishima and Japan Trenches and urging preparedness.

Following its hottest summer on record, Japan has officially designated 'kokushobi' (酷暑日) as the new term for days when temperatures reach 40 degrees Celsius or higher. The term, meaning 'cruelly hot,' was chosen after a public vote and announced by the Japan Meteorological Agency amidst recurring record-breaking heat.

The Japan Meteorological Agency announced that cherry blossoms in Tokyo are now in full bloom, three days earlier than the average and two days earlier than the previous year.

The Japan Meteorological Agency is set to begin operations for an immediate forecast system for linear rainbands from late May, providing warnings up to three hours before potential heavy rainfall.

A low-pressure system moving along the southern coast of Honshu is expected to bring heavy snow to Japan's Kanto-Koshin region, especially in mountainous areas, from the afternoon of the 3rd to the morning of the 4th. The Japan Meteorological Agency warns of potential traffic disruptions, even in some flat areas of Kanto.

Japan's Meteorological Agency has released its long-term forecast, predicting above-average temperatures across the country for the three months starting in March, with western Japan's Pacific side expecting less rain. The summer months from June to August are also forecast to be unusually hot.

The Japan Meteorological Agency announced plans to enhance observations of water vapor over the sea to improve the accuracy of predicting linear rainbands, which frequently cause severe flood disasters. The agency intends to deploy new laser equipment on observation vessels and aims for practical application within three years.

The Japan Meteorological Agency has warned of a high risk of linear rainbands forming in the Amami region of Kagoshima Prefecture from early morning to noon on the 26th. Unstable atmospheric conditions due to a stationary baiu front could lead to rapidly increasing danger from landslides and flooding.

Japan's Meteorological Agency has released its three-month forecast, predicting higher-than-average temperatures nationwide for the summer months from June to August. The agency also warns of potentially heavier rainfall during the upcoming rainy season and urges preparedness for both heat and precipitation.

A 5.8 magnitude earthquake occurred in Japan's Nara prefecture on Saturday, as reported by the Japan Meteorological Agency and the German Research Centre for Geosciences.

Following a major earthquake off Sanriku on the evening of the 20th, the Japan Meteorological Agency issued a 'Hokkaido-Sanriku Offshore Post-Earthquake Attention Information.' The warning indicates an increased possibility of a massive earthquake along the Chishima and Japan Trenches, urging 182 municipalities from Hokkaido to Chiba Prefecture to review their preparedness.

Amidst recurring record-breaking heat, the Japan Meteorological Agency has announced a new official term, 'Extreme Heat Day' (酷暑日), for days when the maximum temperature reaches 40 degrees Celsius or higher.

Cherry blossoms in Tokyo have reached full bloom, two days earlier than last year and three days earlier than the average, according to the Japan Meteorological Agency.

Heavy snow is falling in northern Kanto and Niigata Prefecture, among other areas, with increasing accumulation. The Japan Meteorological Agency warns of potential traffic disruptions due to snow and icy roads.

A low-pressure system moving along the southern coast of Honshu is expected to bring rain and snow nationwide from the 3rd to the 4th, with heavy snowfall anticipated in the mountainous areas of Kanto-Koshin and the Tohoku region. The Japan Meteorological Agency warns of potential traffic disruptions and advises checking the latest weather information.