Horticulture : News
DATE: March 15, 2010
HARDIN COUNTY COOPERATIVE EXTENSION SERVICE
201 Peterson Drive
Elizabethtown, Kentucky 42701-9370
BY: Amy Aldenderfer
County Extension Agent for Horticulture
Spring Weather Safety
Neither lamb nor lion, the arrival of March in Kentucky was less than notable. Still, changeable weather is one of the harbingers of spring and often it comes in the form of high winds and blustery conditions. Even though tornadoes can occur in any season, they are most common in spring, along with downbursts and Derecho winds.
A tornado is a violently rotating column of air which descends from a thunderstorm. These violent storms form thousands of feet above the earth’s surface usually during warm, humid, unsettled weather and usually in conjunction with a severe thunderstorm. Along with rain, dust and debris sucked into the center of the air column form the distinct funnel shape that identifies a tornado. Wind speeds, ranging from 40 to more than 300 mph, can be extremely destructive. A tornado can level a building, lift a railroad car off its tracks and strip asphalt from pavement.
Derecho wind storms and downbursts also come from thunderstorms. Derechos are rapidly moving, large-scale and long-lived wind events associated with bands of thunderstorms or showers. Winds ranging from 57 to more than 100 miles per hour can topple 18-wheelers and blow down trees.
Downbursts are much smaller and are formed by high winds in the upper levels of thunderstorms that funnel down to the surface. Both can cause serious damage and can be life threatening, so even when just a thunderstorm watch or warning has been issued you should always be prepared.
Make a tornado emergency plan for both work and home. Keep a weather radio in good working condition with extra batteries and make sure you and your family know what precautions to take in your home, a car, open country or other situations that may arise.
- In your home or any sturdy building, take shelter in the lowest level away from any windows, preferably under a sturdy object to protect yourself from falling debris.
- In your car, you should attempt to drive to shelter. If this is not possible, exit the vehicle and take cover by laying down in a ditch or low-lying area with your hands over your head. If a low-lying area is not nearby or you cannot exit your vehicle, strap on your seat belt, cover your head and keep your body below window level.
- In a mobile home, even tied down, always evacuate and take cover in a low-lying area and cover your head.
For more information about severe weather preparedness, contact the Hardin County Cooperative Extension Service at 765-4121, www.hardinext.org or on Facebook.
Educational programs of the Cooperative Extension Service serve all people regardless of race, color, age, sex, religion, disability or national origin.
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