WINTER STORM WATCH:
Severe winter conditions, such as heavy snow and/or ice, are possible within the next day or two. Prepare now!
WINTER STORM WARNING:
Severe winter conditions have begun or are about to begin in your area. Stay indoors!
BLIZZARD WARNING:
Snow and strong winds will combine to produce a blinding snow (near zero visibility), deep drifts, and life-threatening wind chill. Seek refuge immediately!
WINTER WEATHER ADVISORY:
Winter weather conditions are expected to cause significant inconveniences and may be hazardous. If caution is exercised, these situations should not become life- threatening. The greatest hazard is often to motorists.
FROST/FREEZE WARNING:
Below freezing temperatures are expected and may cause significant damage to plants, crops, or fruit trees. In areas unaccustomed to freezing temperatures, people who have homes without heat need to take added precautions.
Winter Precipitation
FLURRIES - Light snow falling for
short durations. No accumulation or light dusting is all that is expected.
SHOWERS - Snow falling at varying
intensities for brief periods of time. Some accumulation is possible.
SQUALLS - Brief, intense snow showers
accompanied by strong, gusty winds. Accumulation may be significant. Snow
squalls are best known in the Great Lakes region.
BLOWING SNOW - Wind-driven snow that
reduces visibility and causes significant drifting. Blowing snow may be snow
that is falling and/or loose snow on the ground picked up by the wind.
BLIZZARD - Winds over 35 mph with snow
and blowing snow reducing visibility to near zero.
Rain drops that freeze into ice pellets before reaching the ground. Sleet
usually bounces when hitting a surface and does not stick to objects. However,
it can accumulate like snow and cause a hazard to motorists.
Rain that falls onto a surface with a temperature below freezing. This causes
it to freeze to surfaces, such as trees, cars, and roads, forming a coating or
glaze of ice. Even small accumulations of ice can cause a significant hazard.
Winter Storm Facts:
What Makes a Winter Storm?
COLD AIR:
below freezing temperatures in the clouds and near the ground are
necessary to make snow and/or ice.
MOISTURE:
to form clouds and precipitation. Air blowing across a body of water,
such as a large lake or the ocean, is an excellent source of moisture.
LIFT:
something to raise the moist air to form the clouds and cause
precipitation. An example of lift is warm air colliding with cold air and being
forced to rise over the cold dome. The boundary between the warm and cold air
masses is called a front. Another example of lift is air flowing up a mountain
side.
Winter's Impact
Sometimes winter storms are accompanied by strong winds creating blizzard conditions with blinding wind-driven snow, severe drifting, and dangerous wind chill. Strong winds with these intense storms and cold fronts can knock down trees, utility poles, and power lines.
Extreme cold often accompanies a winter storm or is left in its wake. Prolonged exposure to the cold can cause frostbite or hypothermia and become life-threatening. Infants and elderly people are most susceptible. What constitutes extreme cold and its effect varies across different areas of the United States. In areas unaccustomed to winter weather, near freezing temperatures are considered "extreme cold." Freezing temperatures can cause pipes to freeze and burst in homes that are poorly insulated or without heat. In the north, below zero temperatures may be considered as "extreme cold." Long cold spells can cause rivers to freeze, disrupting shipping. Ice jams may form and lead to flooding.
Heavy accumulations of ice can bring down trees, electrical wires, telephone poles and lines, and communication towers. Communications and power can be disrupted for days while utility companies work to repair the extensive damage. Even small accumulations of ice may cause extreme hazards to motorists and pedestrians.
Heavy snow can immobilize a region and paralyze a city, stranding commuters, stopping the flow of supplies, and disrupting emergency and medical services. Accumulations of snow can collapse buildings and knock down trees and power lines. In rural areas, homes and farms may be isolated for days, and unprotected livestock may be lost. The cost of snow removal, repairing damages, and loss of business can have large economic impacts on cities and towns.
Everyone is potentially at risk during winter storms. The actual threat to you depends on your specific situation. Recent observations indicate the following:
COLD
FROSTBITE
Frostbite is damage to body tissue caused by that tissue being frozen.
Frostbite causes a loss of feeling and a white or pale appearance in
extremities, such as fingers, toes, ear lobes, or the tip of the nose. If
symptoms are detected, get medical help immediately! If you must wait for help,
slowly rewarm affected areas. However, if the person is also showing signs of
hypothermia, warm the body core before the extremities.
HYPOTHERMIA: LOW BODY TEMPERATURE
Warning signs - uncontrollable shivering, memory loss,
disorientation, incoherence, slurred speech, drowsiness, and apparent
exhaustion.
Detection - Take the person's temperature. If below 95F
(35C),immediately seek medical care! If medical care is not available, begin
warming the person slowly. Warm the body core first. If needed, use your own
body heat to help. Get the person into dry clothing, and wrap them 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 is better. Do not warm
extremities (arms and legs) first! This drives the cold blood toward the heart
and can lead to heart failure.
WIND CHILL
The wind chill is based on the rate of heat loss from exposed skin caused by
combined effects of wind and cold. As the wind increases, heat is carried away
from the body at an accelerated rate, driving down the body temperature. Animals
are also affected by wind chill.
| AVOID OVEREXERTION, such as shoveling heavy snow, pushing a car, or walking in deep snow. The strain from the cold and the hard labor may cause a heart attack. Sweating could lead to a chill and hypothermia. |
When CAUGHT in a Winter Storm...
OUTSIDE
Find shelter:
No shelter:
Do not eat snow: It will lower your body temperature. Melt it first.
IN A CAR OR TRUCK
Stay in your car or truck. Disorientation occurs quickly in wind-driven
snow and cold.
Run the motor about ten minutes each hour for heat:
Make yourself visible to rescuers:
Exercise from time to time by vigorously moving arms, legs, fingers, and toes to keep blood circulating and to keep warm.
AT HOME OR IN A BUILDING
Stay inside. When using ALTERNATIVE HEAT from a fireplace, wood stove, space heater, etc.:
No heat:
Eat and drink. Food provides the body with energy for producing its own
heat. Keep the body replenished with fluids to prevent dehydration.
Wear layers of loose-fitting, lightweight, warm clothing. Remove layers to
avoid overheating, perspiration, and subsequent chill.
BE PREPARED...
Before the Storm Strikes
At home and at work...
Primary concerns are the potential loss of heat, power, telephone service, and a shortage of supplies if storm conditions continue for more than a day.
Have available:
For yourself, you can:
In cars and trucks...
Plan your travel and check the latest weather reports to avoid the storm!
Carry a WINTER STORM SURVIVAL KIT:
On the farm...
| DRESS TO FIT THE SEASON. Wear loose-fitting, light-weight, warm clothing in several layers. Trapped air insulates. Layers can be removed to avoid perspiration and subsequent chill. Outer garments should be tightly woven, water repellent, and hooded. Wear a hat. Half your body heat loss can be from the head. Cover your mouth to protect your lungs from extreme cold. Mittens, snug at the wrist, are better than gloves. Try to stay dry. |
FAMILY DISASTER PLAN
| Families should be prepared for all hazards that affect their area and themselves. NOAA's National Weather Service, the Federal Emergency Management Agency, and the American Red Cross urge each family to develop a family disaster plan. Where will your family be when disaster strikes? They could be anywhere at work, at school, or in the car. How will you find each other? Will you know if your children are safe? Disasters may force you to evacuate your neighborhood or confine you to your home. What would you do if basic services - water, gas, electricity or telephones - were cut off? |
Follow these basic steps to develop a family
disaster plan...
I. Gather information about hazards. Contact your local National Weather
Service office, emergency management office or civil defense office, and
American Red Cross chapter. Find out what type of disasters could occur and
how you should respond. Learn your community's warning signals and evacuation
plans.
II. Meet with your family to create a plan. Discuss the information you have
gathered. Pick two places to meet: a spot right outside your home for an
emergency, such as fire, and a place away from your neighborhood in case you
can't return home. Choose an out-of-state friend as your "family check-in
contact" for everyone to call if the family gets separated. Discuss what you
would do if advised to evacuate.
III. Implement your plan.
| A DISASTER SUPPLIES KIT SHOULD INCLUDE: A 3-day supply of water (one gallon per person per day) and food that won't spoil one change of clothing and footwear per person one blanket or sleeping bag per person a first-aid kit, including prescription medicines emergency tools, including a battery-powered NOAA Weather Radio and a portable radio, flashlight, and plenty of extra batteries an extra set of car keys and cash special items for infant, elderly, or disabled family member. |
IV. Practice and maintain your plan. Ask questions to make sure your family
remembers meeting places, phone numbers, and safety rules. Conduct drills. Test
your smoke detectors monthly and change the batteries at least once a year. Test
and recharge your fire extinguisher(s) according to manufacturer's instructions.
Replace stored water and food every six months.