Heat Wave Spreads to New York, Boosting Power Consumption, Health Risk

In New York, a heat advisory means the heat and humidity will make it feel like 95 degrees for two consecutive days “or 100 degrees for any length of time,” according to the weather service.

An excessive heat warning, issued for Philadelphia, means the combination of heat and humidity will “create dangerous conditions in highly urbanized areas.”

http://www.bloomberg.com/news/2011-06-08/heat-wave-spreading-to-new-york-boosts-power-consumption-risks-to-health.html