Do you concider a heat wave a natural disaster worth preparing for?
Some of our readers may be in a region less prone to heat waves but for many of us who live in areas with seasonal weather changes summer is usually well welcomed as we get a chance to say goodbye to the bitter cold and dampness that often accompanies winter. But when summer is here and the daylight hours grow longer with the growing warmth we at times face hotter than normal temperatures and even heat waves.
Heat waves. Here in America they can come at any time during the summer months and they bring nothing but grief, despair and often death for the unprepared. Hurricanes, tornadoes, floods and earthquakes… combine the death totals from all other natural disaster and more Americans die from heat waves than all others together.
What exactly is a heat wave? Well there is no specific temperature that constitutes when a heat wave starts. It is dependent on what ever your region considers normal for that time of year. A 50 degree day in January in Wisconsin could be considered a heat wave. A great rule of thumb however is outlined by the World Meteorological Organization:
When the daily maximum temperature of more than five consecutive days exceeds the average maximum temperature by 5 Celsius degrees or 9 Fahrenheit degrees (the normal period calculated from 1961–1990).
-From Wikiepdia
Heat waves are brought on by a number of different patterns and combinations such as:
When referring to HI a great example of what the “air temperature feels like” is as follows: When the temperature is 100 °F with very high humidity, the heat index can be about 110 °F. Meaning the temperatures feel closer to 110 °F to the body. below is an interesting chart covering HI figures. Keep in mind these temperature measurements were taken in the shade and not the sun. As always take extreme care in the sun.
Heat Index Temperature | Effects (shade values) |
---|---|
27–32 °C / 80–90 °F | Caution — fatigue is possible with prolonged exposure and activity. Continuing activity could result in heat cramps |
32–41 °C / 90–105 °F | Extreme caution — heat cramps, and heat exhaustion are possible. Continuing activity could result in heat stroke |
41–54 °C / 105–130 °F | Danger — heat cramps, and heat exhaustion are likely; heat stroke is probable with continued activity |
over 54 °C / 130°F | Extreme danger — heat stroke is imminent |
(Chart information courtesy Wikipedia)
There really is only one thing to worry about in a heatwave. The heat. However with great heat waves so many times the power grids are put to the test and then fail producing rolling blackouts. Why? Because when we need to cut back and give the power grids a break people instead and usually in record numbers crank up their air conditioners and strain the grid(s). Summer blackouts in return cause panic and grief often as the ability to power ones air conditioner goes along with other utilizes we take for granted. Couple the loss of power with the heat and the sad reality is that most are simply not prepared. And then the body count rises. Do you own a backup generator? If you answered no then why not? You can view some here.
Here is a chart of the top ten deadliest heat waves and their body counts. Also courtesy of Wikipedia.
Rank | Death toll | Event | Location | Date |
---|---|---|---|---|
1. | 70,000 | 2003 European heat wave | Europe | 2003 |
2. | 56,000 | 2010 Russian heat wave | Russia | 2010 |
3. | 5,000–10,000 | 1988 United States heat wave | United States | 1988 |
4. | 1,700–5,000 | 1980 United States heat wave | United States | 1980 |
5. | 1,718 | 2010 Japanese heat wave | Japan | 2010 |
6. | 1,500 | 2003 Southern India heat wave | India | 2003 |
7. | 946 | 1955 Los Angeles heat wave | United States | 1955 |
8. | 891 | 1972 New York City heat wave | United States | 1972 |
9. | 739 | 1995 Chicago heat wave | United States | 1995 |
10. | 475 | 1900 Argentina heat wave | Argentina | 1900 |
Prolonged heat exposure leads to many health problems mild to severe. Muscle cramps, heat exhaustion, fainting, dehydration and heat stroke to name a few. Your heart and other internal organs face more strain and stress to boot as your body works harder to moderate your temperature. Heat stroke is the most severe and it is when the body’s core temperature rises from 98.6°F to 104°F or above. Anything over 103 is considered potentially deadly and during a heat wave is what often kills so many. As your body heat increases (with extremely high temperatures) your body races to release the same heat through sweating or other methods of external cooling.
A few signs of heat stroke are:
-Dizziness
-Headache
-Nausea
-Confusion
-Hot, red and dry skin
-Reduced sweating
Seek immediate medical attention if you or someone else is experiencing a heat stroke or showing symptoms. Keep the person cool with water, offer him or her something to drink and prvoide shade from the direct sunlight.
Here are some excellent tips to beat the heat!
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