August 18[edit]
1969: Silver iodide was dropped into parts of Hurricane Debbie as part of Project Stormfury, an attempt to weaken hurricanes using cloud seeding.
1997: Typhoon Winnie, a storm with an extremely large eye more than 200 miles (320 km) in diameter, made landfall in Zhejiang, China, killing more than 300 people.
2007: Typhoon Sepat struck the island of Taiwan, killing at least 43 people.
2008: The Indian state of Bihar experienced an historic flood when the Kosi River changed its course, affecting more than 2 million people and killing hundreds.
2011: A lightning strike sparked the Pagami Creek Fire in northern Minnesota. It would eventually burn 92,000 acres (370 km2), making it the largest naturally occurring fire in the state in more than 100 years.