What causes a heat wave?



  1. 0 Votes

    Heat waves are generally caused by high pressure systems getting stuck over a geographic area.  The high pressure in these systems presses on the air and raises the temperature (since temperature increases with pressure).  The high pressure also blocks other weather systems from moving in, meaning the high pressure can stick around for a long time.  Since high pressure systems also block out wind and clouds, the heat not only persists, but continues to grow in intensity.

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