the remainder of the month, mostly in the West. Temperatures returned to normal or even below average in other parts of the country for the remainder of the summer. Impact of heat waves Although comparatively little reporting is made about the health effects of extraordinarily hot conditions, heat waves are responsible for more deaths annually than more energetic natural disasters such as lightning, rain, floods, hurricanes, and tornadoes. Supporting this conclusion, Karl Swanberg, a forecaster with the National Weather Service, reported that between 1936 and 1975, about 20,000 U.S. residents died of heat. "Heat and solar radiation on average kill more U.S. residents each year than lightning, tornadoes, hurricanes, floods or earthquakes," said Karl Swanberg. This finding is also referenced in a publication of the National Oceanic and Atmospheric Administration, giving guidance on how to avoid health problems due to heat. See also 1936 North American heat wave 1980 United States heat wave 1995 Chicago heat wave 2001 Eastern United States heat wave 2003 European heat wave 2006 Queens blackout 2006 European heat wave The Northern Hemisphere Summer heat wave of 2010 References North American heat wave Heat waves in Canada North American Heat Wave, 2006 North American Heat Wave, 2006 Heat waves in the United States