Remnants of Tropical Storm Cristobal Reach Iowa in a Rare Occurrence


Source: NASA earth observatory

Nicole Welle | June 10, 2020

Parts of Eastern Iowa saw heavy rainfall and flash flood warnings yesterday as what was left of Tropical Storm Cristobal moved into the Midwest.

Tropical storms over the Gulf of Mexico usually break up before they reach Iowa, but this one remained a post-tropical depression in an extremely rare phenomenon, according to Meteorologist Brooke Hagenhoff at the National Weather Service. This system brought an abrupt end to the hot, humid weather that eastern Iowans had been experiencing as it was followed by a cold front that brought cooler, dryer conditions, according to an Iowa News Now article.

The post-tropical depression caused heavy rainfall in the state, and flash flooding occurred near waterways and in low areas. Along with posing threats to human safety, flash floods can also raise environmental concerns. Floods have the ability to pick up hazardous chemicals and materials and transport them into waterways. This can threaten the safety of drinking water as well as the plant and animal life that rely on Iowa’s waterways.

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