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Temperatures that hover 10 degrees or more above
the average high temperature for an area and which last for several weeks are
defined as extreme heat. Excessively dry and hot conditions can provoke dust
storms and low visibility. Droughts occur when a long period passes without
substantial rainfall. A heat wave combined with a drought is a very dangerous
situation.

Drought is a natural hazard that differs from
other natural hazards in that it has a slow onset, evolves over months or years,
affects a large region, causes little structural damage, and is a normal part of
virtually any climate. The impacts of drought span economic, environmental and
social sectors. Inadequate rainfall (a physical factor) and increasing demands
for water (a social factor) are the causes of drought. The impacts of drought
hit hardest when people place too high a demand on the water supply. We can
reduce vulnerability to drought by balancing water supply and demand.
Heat kills by pushing the human body beyond its
limits. Most heat disorders occur because the victim has been overexposed to
heat or has over exercised for his/her age and physical condition. A prolonged
drought can have a serious economic impact including resource shortages, food
shortages and damaged or destroyed crops and livestock.
During periods of extreme heat you should:
- Hang shades, draperies, awnings or louvers on windows that
receive morning or afternoon sun. Outdoor awnings can reduce heat entering your
home by as much as 80%. Conserve electricity.
- Stay indoors as much as possible. If air conditioning is not
available, stay on the lowest floor out of the sun. Keep in mind that electric
fans do not cool, they just blow hot air around.
- Eat well balanced, light meals and drink plenty of water
regularly. Limit intake of alcoholic beverages as they actually cause further
body dehydration.
- Dress in loose-fitting clothing, covering as much skin as
possible. Lightweight, light-colored clothing reflects heat and helps maintain
normal body temperature.
- Avoid too much sunshine. Sunburn slows the skin’s ability to
cool itself. Use a sun screen with a high SPF and wear wide-brimmed hats.
- Avoid extreme temperature changes such as a cool shower
immediately after coming in from hot temperatures.
- Reduce, eliminate or reschedule strenuous activities.
- Take salt tablets only if directed by your physician.
- Vacuum air conditioner filters weekly during periods of high
use.
- Learn the symptoms of heat disorders – sunburn, heat cramps,
heat exhaustion and heat stroke – and how to give first aid.
During a Drought:
Around the home:
- Use your water meter to check for leaks in your home. Start by
turning off all faucets and water-using appliances and make sure no one uses
water during the testing period. Take a reading on your meter, wait about 30
minutes, then take a second reading. If the dial has moved you have a leak.
- Check for a leaky toilet by placing a few drops of food
coloring in the tank. If the dye shows up in the bowl after 15 minutes, the
toilet has a leak. Leaky toilets can usually be repaired by replacing the
flapper. Place a brick or other large, solid object in the flush tank of the
toilet to reduce the water used to flush.
- Check for leaky faucets in sinks and bathtubs. Dripping
faucets can usually be repaired by replacing the rubber o-ring or washer inside
the valve.
- Take quick showers rather than a bath to save an average of 20
gallons of water.
- Turn off water when brushing your teeth or shaving.
- Clean vegetables in a sink or pan partially filled with water
rather than running water from the tap. Re-use this water for watering house
plants.
- If you wash dishes by hand, rinse them in a sink partially
filled with clean water instead of under running tap water.
- Instead of waiting for tap water to get cold enough for
drinking, keep a bottle of water in the refrigerator.
- When possible, compost food scraps or dispose of them in the
garbage rather than using the garbage disposal which requires a high level of
water for operation.
- Only run your dishwasher when it is full to make the best use
of water.
- Wash only full loads of laundry or if you can’t wait for a
full load, use the right water level to match the size of the load.
- Insulate hot water pipes and your electric water heater.
- Wash your car with a bucket of soapy water and use a nozzle to
stop the flow of water from the hose between rinsings.
- Prevent leaks by shutting off and draining water lines to
outside spigots in winter.
- Cover spas/pools to reduce evaporation. Check for leaks and
have them repaired promptly.
Landscaping:
- Landscaping accounts for 20 - 50% of all residential water use
and provides the best opportunity for conservation:
- Maintain a lawn height of 2 ½ - 3 inches to help protect
roots from heat stress and reduce the loss of moisture to evaporation.
- Avoid planting turf in areas that are difficult to irrigate
properly such as steep inclines and isolated strips along sidewalks or
driveways.
- Mulch around plants, bushes and trees to help the soil retain
moisture, discourage the growth of weeds and provide essential nutrients.
- Plant in the spring or fall, when watering requirements are
lower.
- When choosing plants, keep in mind that smaller ones require
less water to become established.
- Plant flower and vegetable varieties that tolerate shade and,
thus, require less frequent watering.
- Use porous materials for walkways and patios to keep water in
your yard and prevent runoff.
- Use xeriscape principles – landscaping that conserves
water.
Irrigation:
- Don’t over water your lawn – and don’t water until the
lawn needs it. If the grass turns a dull grey-green and if footprints remain
when you walk across the lawn, it’s time to water. Lawns can do without water
for a long time and turn green again when moisture is available.
- Water before 8 a.m. or after 6 p.m. Avoid watering in high
winds or in the heat of the day.
- Water in several short sessions rather than one long one to
allow your lawn to better absorb moisture.
- Install moisture sensors in each irrigation zone (sunny,
shady, etc) to better determine irrigation needs.
- Check sprinkler system valves for leaks; keep the heads in
good repair.
- Adjust the timer of automatic sprinklers according to seasonal
demands and weather conditions. Install a rain shut-off device to eliminate
unneeded watering.
- Make sure your sprinkler is placed so it only waters the lawn.
- Avoid sprinklers that spray a fine mist, which increases
evaporation.
- Install a drip irrigation system for watering gardens, trees
and shrubs.
Agricultural Considerations:
- Develop a crop water management plan based on water use
efficiency and rainfall patterns.
- Develop, improve and maintain vegetative cover.
- Manage salinity.
The Pondera County MSU Extension Office can provide more
information on crop water management planning, vegetative cover and managing
salinity.
The Farm Service Agency can provide information on disaster
assistance.
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