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Hover or tap underlined Spanish terms to see their translation and exam tip.

¿Qué condición de caída de presión debe cumplirse para que una borrasca en latitudes medias sea considerada como una 'Ciclogénesis Explosiva'?What pressure fall must a mid-latitude low show to be considered “explosive cyclogenesis”?

Show the answer

Correct answer: a) A fall in central pressure of around 18-20 hPa in 24 hours.

Why it is correct

It is measured by the fall in central pressure over 24 hours. The exact figure varies with latitude; in mid-latitudes, about 18-20 hPa.

Why the others are not

  • b) The reference period is 24 hours.
  • c) The fall counts, not the final value.
  • d) The reference period is 24 hours.

How to work it out in the exam

  1. Explosive cyclogenesis: 18-20 hPa in 24 hours.

Where this question comes from

Try it: Weather visuals

Pending instructor review. Machine translation, not reviewed.