Tokyo 2020 organizers on Friday unveiled plans for a center to monitor extreme weather, after concerns the city's scorching summer could cause heatstroke or even deaths during the Games. The next Olympics will also overlap with Japan's typhoon season, and the potential for extreme conditions has become a major headache for the event after a string of weather-related disasters. Organizers will work with a private weather company and the government's meteorological agency to analyze climate data in areas with Olympic venues, a Tokyo 2020 official said. The center will send warnings about weather-related emergencies, including the risk of heatstroke and even evacuation information if necessary, she added. Last year Japan was rocked by a number of weather emergencies, including record rainfall in the west of the country that killed more than 200 people. A deadly heat wave also gripped the country during the summer, raising concerns about outdoor events during the Games, particularly the marathon. Japanese medical groups have warned the event could "lead to deaths" from heatstroke. In December, Tokyo 2020 officials announced they would move back the start of the marathon to "between 5:30 a.m. and 6 a.m." They had previously moved it back to 7 a.m. Organizers have toyed with various ways of beating the heat including the introduction of daylight saving time —- an idea that appears to have fallen by the wayside. Last time Japan hosted the Olympics, in 1964, the competition was held in October to avoid the hot summer conditions. IOC Olympic Games Executive Director Christophe Dubi told reporters later Friday that what 2020 organizers were doing in terms of heat countermeasures was "stunning". "I feel that only in Japan would you go to that kind of detail," he said, citing preparations for providing shade and water for athletes and spectators. If 2020 takes place in the same conditions that prevailed last summer in Tokyo, "the Organizing Committee is really, really ready to counter the situation," said Dubi. Japanese Olympic Committee President Tsunekazu Takeda, being probed for suspected corruption, does not need to step down from his role with the Tokyo 2020 organizing committee because current "reports" do not justify action, the head of Tokyo 2020 said. Tokyo 2020 CEO Toshiro Muto's comment on the case was his first since news emerged last month that Takeda had been questioned in Paris and placed under formal investigation for suspected corruption in Japan's successful bid to host the Games. Takeda, head of the Japanese Olympic Committee since 2001, is also a vice president on Tokyo 2020's executive board. "Mr. Takeda is saying that he's completely innocent so when we are at this stage, going beyond that, we can't take action at this point in time when he's asserting his innocence," Muto told reporters on Friday after a working-level meeting with the International Olympic Committee (IOC). French prosecutors have been investigating a multi-million dollar payment made by the Tokyo bid committee to a Singapore consulting company. The prosecuting judge now suspects Takeda of paying bribes to secure the winning bid, a judicial source told Reuters. Takeda, who was president of the Tokyo 2020 bid committee, has denied any wrongdoing, saying that there was nothing improper with the contracts made between the committee and the consultancy and that they for legitimate work. The investigation is an embarrassment for the IOC, which has been trying to clean up the bidding process around the Olympic Games after a series of corruption allegations and increased spending by host cities. The IOC's ethics commission has opened an ethics file on Takeda, who is also an IOC member and chairs its marketing commission. "We are expecting the inquiry to progress and at some point in time a judgment will be rendered. At this point in time we cannot anticipate where it is heading," Dubi told the same briefing. "But the main point is this organization has evolved and keeps on evolving," he said, noting that the IOC had enacted measures in its Agenda 2020 reforms to improve governance in several areas including the bidding process. "The whole process itself is far more transparent," he said. On Thursday, public broadcaster NHK reported that Games organizers have decided to cut the number of spectators for the sailing events at Tokyo 2020 over tsunami fears. Organisers have reduced capacity at the events off Enoshima island by a third so that spectators could be quickly evacuated to higher ground in the event of a tsunami. Japan is one of the most seismically active countries in the world and one of the Games' biggest challenges is to be prepared for possible disaster. — Agencies