What is “sheet flooding”?
Sheet flooding occurs when storm water collects on the ground, especially already saturated ground, up to a depth of several inches. It usually drains away by flowing to lower ground still in a shallow “sheet.” When sheet flooding occurs, the danger it presents is increased to some extent because it does not look especially dangerous. Unalarmed, people don’t react effectively and quickly to keep themselves safe. They think, “It’s just a few inches of water,” but the water may be moving with great force, and the ground beneath may be dangerously loose mud or otherwise unstable.
To learn more about floods and other types of natural hazards, check out the PDC’s Natural Hazards webpage! Want to know what hazards are occurring around the world or near you? Then, don’t forget to download the free Disaster Alert mobile app available for your iOS or Android devices!
This week we will take a closer look at recent flooding events in the Krasnodar region of Russia and Sichuan China.
Precipitation & Flooding: Krasnodar Region, Russia
Late last week, heavy rainfall severely impacted the Krasnodar region in southern Russia, resulting in flash floods. At least 171 people were killed and 22,000 affected, in addition to 5,185 houses being flooded, of which at least 400 were completely destroyed. The floods were reported to have occurred during the night while many people were sleeping. (IFRC)
The latest forecast for Russia shows areas of continued precipitation.
Precipitation & Flooding: Sichuan, China
Southwest China’s Sichuan Province was impacted by its third flood in a period of 10 days, leading to the evacuation of over 220,000 people. In Dazhou City, over 580,000 people were reported as affected and approximately 3,200 houses destroyed (ReliefWeb/Xinhua). Two weeks ago, on June 28, Sichuan Province was also impacted by a severe mudslide, which resulted in at least 16 deaths and 24 persons missing (ReliefWeb/Xinhua-b).
The latest forecast for China shows areas of continued precipitation.
PDC is currently monitoring flooding events in: Australia, China, England, Guatemala, Guinea, Guinea-Bissau, Honduras, India, Japan, Nicaragua, Scotland, Sierra Leone, Sudan and United States.