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Table 1 Characteristics of the four different life cycle classes, showing number of storms, average pressure minimum and average wind maximum (shown with standard deviations). The last column shows the latitude where they enter Europe (i.e. entering the rectangle with lower left corner 15\(^\circ\)W by 37.5\(^\circ\)N) and subsequent standard deviation. The warm seclusion life cycle has been subdivided into two classes (see Sect. 4.2)

From: Characteristics and development of European cyclones with tropical origin in reanalysis data

  Class Amount \(\overline{p_{min}}\) (hPa) \(\overline{v_{max}}\) (m s\(^{-1}\)) Enter Europe (\(^\circ\)N)
a. Tropical cyclone life cycle 8 (15\(\%\)) 977±9 21.9±1.7 52±4
b. Extratropical cyclone life cycle 7 (13\(\%\)) 970±13 21.5±2.3 58±4
c. Classic ETT* cyclone life cycle 10 (19\(\%\)) 972±7 22.5±1.7 55±7
d. Warm seclusion (WS) life cycle 28 (53\(\%\)) 963±13 22.5±2.4 53±8
   Extratropical WS life cycle 17 (32\(\%\)) 967±14 21.6±2.2 51±7
   Tropical WS life cycle 11 (21\(\%\)) 958±13 23.9±2.1 58±8
  Total 53 (100\(\%\)) 968±13 22.2±2.1 54±7
  1. *ETT is an abbreviation for extratropical transition