Explosive cyclogenesis (also referred to as a weather bomb,[1][2][3] meteorological bomb,[4] explosive development,[1] bomb cyclone[5][6] or bombogenesis[7][8][9]) is the rapid deepening of an extratropical cyclonic low-pressure area. The change in pressure needed to classify something as explosive cyclogenesis is latitude dependent. For example, at 60° latitude, explosive cyclogenesis occurs if the central pressure decreases by 24 mbar (hPa) or more in 24 hours.[10][11] This is a predominantly maritime, winter event,[10] but also occurs in continental settings,[12][13] even in the summer.[14][failed verification] This process is the extratropical equivalent of the tropical rapid deepening.