This preview shows page 1. Sign up to view the full content.
Unformatted text preview: stormy weather Polar Winds cold air out of polar regions meets warmer air from westerlies. Polar Front Relatively warm air (westerlies) meets cold air (polar) Subpolar low zone Seasonal Changes in Global Pattern The ITCZ, subtropical highs, and trade winds all follow the migrating sun . Latitudinal Migration with the Seasons Earths winds migrate with the seasons Longitudinal Migration with the Seasons Earths winds migrate with the seasons The Upper Troposphere (cont) Polar jet stream - narrow band of strong winds above the polar front near the tropopause. West to east direction within the westerlies In the Northern Hemisphere, it forms along a boundary where colder air lies to the north and warmer air to the south Subtropical jet stream further south...
View Full Document
- Spring '10