Wind Chill Terms and Definitions
1. What is wind chill
temperature?
A. The wind chill temperature is how cold people and animals feel when
outside. Wind chill is based on the rate of heat loss from exposed skin caused
by wind and cold. As the wind increases, it draws heat from the body, driving
down skin temperature and eventually the internal body temperature. Therefore,
the wind makes it FEEL much colder. If the temperature is 0 degrees Fahrenheit
and the wind is blowing at 15 mph, the wind chill is -19 degrees Fahrenheit.
At this wind chill temperature, exposed skin can freeze in 30 minutes.
2. Can wind chill impact my car's radiator or exposed water pipe?
A. The only effect wind chill has on inanimate objects, such as
car radiators and water pipes, is to shorten the amount of time for the object
to cool. The inanimate object will not cool below the actual air temperature.
For example, if the temperature outside is -5 degrees Fahrenheit and the wind
chill temperature is -31 degrees Fahrenheit, then your car's radiator will
not drop lower than -5 degrees Fahrenheit.
3. What is FROSTBITE?
A. You have frostbite when your body tissue freezes. The most susceptible
parts of the body are fingers, toes, ear lobes, or the tip of the nose. Symptoms
include a loss of feeling in the extremity and a white or pale appearance.
Get Medical attention immediately for frostbite. The area should be SLOWLY
re-warmed.
4. What is HYPOTHERMIA?
A. Hypothermia occurs when body temperature falls below 95 degrees Fahrenheit.
Determine this by taking your temperature. Warning signs include uncontrollable
shivering, memory loss, disorientation, incoherence, slurred speech, drowsiness,
and exhaustion. Get medical attention immediately. If you can't get
help quickly, begin warming the body SLOWLY. Warm the body core first,
NOT the extremities. Warming extremities first drives the cold blood
to the heart and can cause the body temperature to drop further--which may
lead to heart failure. Get the person into dry clothing and wrap in a warm
blanket covering the head and neck. Do not give the person alcohol, drugs,
coffee, or any HOT beverage or food. WARM broth and food is better. About
20% of cold related deaths occur in the home. Young children under the age
of two and the elderly, those more than 60 years of age, are most susceptible
to hypothermia. Hypothermia can set in over a period of time. Keep the thermostat
above 69 degrees Fahrenheit, wear warm clothing, eat food for warmth, and
drink plenty of water (or fluids other than alcohol) to keep hydrated. NOTE:
Alcohol will lower your body temperature.
5. Tips on How to Dress during cold weather
A. The best way to avoid hypothermia and frostbite is to stay warm and
dry indoors. When you must go outside, dress appropriately. Wear several layers
of loose-fitting, lightweight, warm clothing. Trapped air between the layers
will insulate you. Remove layers to avoid sweating and subsequent chill. Outer
garments should be tightly woven, water repellent, and hooded. Wear a hat,
because half of your body heat can be lost from your head. Cover your mouth
to protect your lungs from extreme cold. Mittens, snug at the wrist, are better
than gloves. Try to stay dry and out of the wind.
6. Avoid Overexertion
A. Your heart is already working overtime in cold weather. The strain from the cold and the hard labor of shoveling heavy snow, walking through drifts or pushing a car may cause a heart attack. Sweating from overexertion could lead to a chill and hypothermia.