![]() |
||||||||
| June 2009 The Restoration Pillar Newsletter |
![]() |
|||||||
|
||||||||
|
||||||||
|
||||||||
Tornado Facts & Safety Tips
|
||||||||
![]() |
Tornadoes are nature's most violent storms. Spawned from powerful thunderstorms, tornadoes can cause fatalities and devastate a neighborhood in seconds. A tornado appears as a rotating, funnel-shaped cloud that extends from a thunderstorm to the ground with whirling winds that can reach 300 miles per hour. Damage paths can be in excess of one mile wide and 50 miles long. Every state is at some risk from this hazard.
Some tornadoes are clearly visible, while rain or nearby low-hanging clouds obscure others. Occasionally, tornadoes develop so rapidly that little, if any, advance warning is possible.
Before a tornado hits, the wind may die down and the air may become very still. A cloud of debris can mark the location of a tornado even if a funnel is not visible. Tornadoes generally occur near the trailing edge of a thunderstorm. It is not uncommon to see clear, sunlit skies behind a tornado.
![]() |
No matter where your house is located, your basement could flood during heavy rainfalls if drainage is poor, says Charles Schwab, Iowa State University Extension professor, Ag and Biosystems Engineering.
"If your house is in a floodplain, use dikes, block outlets that might back-up into the basement, waterproof the walls and block windows and doors with sandbags," said Schwab.
During extreme flooding, water pressure can collapse foundation walls. In some cases it might be preferable to allow the basement to flood and equalize water pressure. Contact local authorities to determine the possibility of basement collapse, Schwab said.