“Guerrilla Rainstorm” Caught on Camera From Tokyo Skytree

Back in 2006, Japanese mass media began using the term “guerrilla rainstorm” to describe short localized downpours of over 100 mm of rain per hour that appeared suddenly and unexpectedly.

The phenomenon is thought to be a result of rapid development of cumulonimbus clouds near urban areas caused by a combination of heat islands and local winds. The rainstorms have proven incredibly difficult to predict (hence the name “guerilla”) and are known for causing flash floods in urban areas.

The photo you see above is of one such guerrilla rainstorm, taken from Tokyo Skytree on September 1.

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