| This Arctic airmass will affect the eastern two-thirds of the country on Monday as a sharp cold front moves towards the East Coast. |
| During the fall, with a cold airmass flowing over the open water of Frobisher Bay, southeast winds can also be gusty. |
| Since the arctic airmass is dry and cold, the moisture to produce the clouds comes from the Maritime stream. |
| In the winter months, with a relatively weak gradient from the northwest and a cold airmass, northwest winds can be quite variable. |
| Frontal fog forms in the moist airmass trapped beneath a warm frontal inversion. |
| This year the extra water froze only when it fell into the cold Canadian airmass below. |
