Disaster Emergency Survival Readiness

What Causes A Heat Wave

In the summer in warm climates, an area of high pressure with little or no rain or clouds, the air and ground easily heats to excess. A static high pressure area can impose a very persistent heat wave.
The position of the jet stream allows air on one side to be considerably warmer than the other side. Heat waves are far more common and more severe on the warm side and at times an unusual position of the jet stream places unusual warmth in an unusual place for hot weather, and imposes a heat wave. El Niño and La Niña (opposite reaction to El Niño) can severely disrupt the positions of the jet streams.

Heat Wave Dangers. Preventing Heat Stroke and Heat Related Illness
As the summer sun beckons, our thoughts turn to backyards, pools and beaches, picnics, and the wonderful world of outdoor fun. It is a glorious time of year but, sometimes, summer’s heat can be a bit too much for our bodies to handle.

When a heat wave strikes, knowing how to prevent heat-related illness can ward off trouble before it’s too late. Be smart this summer … know how to prevent overheating and enjoy summer fun to the fullest.

The National Weather Service issued excessive heat warnings for wide areas of the central and eastern United States, saying the combined heat and humidity could push the "real feel" temperature to 115 Fahrenheit...