Fallen tree branches are seen after heavy rain in Washington D.C., the United States, on July 22, 2020. Torrential rain on Wednesday hammered the Washington D.C. region, causing extensive power outages. (Xinhua/Liu Jie)

Fallen tree branches are seen after heavy rain in Washington D.C., the United States, on July 22, 2020. Torrential rain on Wednesday hammered the Washington D.C. region, causing extensive power outages. (Xinhua/Liu Jie)

Fallen tree branches are seen after heavy rain in Washington D.C., the United States, on July 22, 2020. Torrential rain on Wednesday hammered the Washington D.C. region, causing extensive power outages. (Xinhua/Liu Jie)

Fallen tree branches are seen after heavy rain in Washington D.C., the United States, on July 22, 2020. Torrential rain on Wednesday hammered the Washington D.C. region, causing extensive power outages. (Xinhua/Liu Jie)

Fallen tree branches are seen after heavy rain in Washington D.C., the United States, on July 22, 2020. Torrential rain on Wednesday hammered the Washington D.C. region, causing extensive power outages. (Xinhua/Liu Jie)