remains a DFW all-time high. The high temperatures of the 1980 heat wave were worse than 2011, as was its early start in June and its ultimate human toll. On the northern rim of the high pressure ridge, several severe long-lived windstorms called derechos formed. The most notable was the "More Trees Down Derecho" that occurred on July 5. It raced from eastern Nebraska to Virginia in 15 hours, killing six and injuring about 70. The Western Wisconsin Derecho of July 15 killed three, and caused extensive property damage. See also 1988–89 North American drought Extreme weather List of disasters List of United States disasters by death toll Meteorology References Further reading Heat wave United States heat wave Natural disasters in Texas Natural disasters in Missouri Natural disasters in Tennessee 1980 1980 heat waves