Air Canada enRoute - - MUST-SEE TV / ÉMISSIONS À VOIR -

1 In Cana­dian lat­i­tudes, low-pressure sys­tems are more in­tense in the win­ter. Winds here gen­er­ally blow from the west with many air­ports hav­ing west­erly ori­ented run­ways.

2 Ris­ing air means clouds, rain and pos­si­ble thun­der­storms. Sink­ing air means less clouds and drier con­di­tions.

3 The belt of low pressure over the equa­tor is la­belled the Dol­drums, hence the id­iom “down in the dol­drums” for feel­ing lethar­gic, slug­gish or sad.

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