A heat wave, by definition is a period of time in which the temperatures are higher than normal for that region at that time of year.
When high pressure from aloft—10,000-25,000ft remains strong over an area for several days to weeks, heat waves occur.
Heat exhaustion, which shows itself in symptoms such as vomiting, diarrhea, headache, nausea, etc.
If a heat wave continues for a longer period, crops and forests can become very dry making it possible for forest or brush fires to start and spread. Heat waves happen all over the globe, with serious heat waves occurring yearly in some area of the world. People of all ages can suffer the effects of a heat wave, but the ill, very young, elderly, or overweight tend to be affected more severely.
Because the heat is maintained over the period of several days and doesn’t cool down much at night, the running of air conditioning is increased.
Our bodies are cooled primarily by losing heat through the skin and perspiration with evaporation. If not treated, the condition will get worse, the body temperature will keep rising, and heat stroke may occur.


Members heat waves facts are away the type of meals prepared to eat - MREs - or freeze-dried meals practice. Heat Cramps is a condition that is marked by sudden development of cramps in skeletal muscles and that result from prolonged work or exercise in high temperatures accompanied by profuse perspiration (sweat) with loss of sodium chloride (salt) from the body. Heat Exhaustion is a condition marked by weakness, nausea, dizziness, and profuse sweating that results from physical exertion in a hot environment. Heatstroke (also called Sunstroke) is a life threatening condition marked especially by cessation of sweating, extremely high body temperature, and collapse that result from prolonged exposure to high temperature. Heat Index is the temperature or degrees Fahrenheit (F) indicating how hot it feels when relative humidity is added to the actual air temperature.
The NWS will initiate alert procedures when the Heat Index is expected to exceed 105°- 1 10°F (depending on local climate) for at least two consecutive days.
If your home is not air-conditioned, make alternate plans ahead of time in case of a heat wave. What might be considered normal temperatures in tropical or warmer regions can be considered a heat wave in areas which normally doesn’t experience that type of heat. Even the healthiest people may be overpowered if they perform strenuous work outside during the heat of the day.


A heat stroke victim’s temperature control system stops working and cannot produce sweat to cool the body.
As an example, if the air temperature is 95°F (found on the top of the table) and the Relative Humidity is 55% (found at the left side of the table), the Heat Index-or how hot it really feels-is 110°F. Deaths related to heat are often hard to count because it affects those already run down, elderly, or sick. AUSTRALIA'S summer heatwaves are lasting longer and happening more often, new research has found. If you suspect Heatstroke call 911 or your local emergency number immediately and move the person to a cooler place– help is needed fast!



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