EESA09H3 Lecture Notes - Lecture 5: Canadian Pacific Air Lines, 42Nd Parallel North, Freezing Rain
2 Aug 2018
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Document Summary
Mid latitude describes the latitudes between 35 degrees and 60 degrees. Toronto is located in this region at 42 degrees. Midlatitude cyclones: meteorologists refer to these cyclones as lows , or frontal or low pressure system . Occurs usually in the fall, winter, and spring every 4 to 7 days. Theses systems are larger than hurricanes can extend up to thousands of kilometers but wind speeds are lower than in hurricanes, however, thunderstorms and tornadoes may be present. Polar fronts are dominant in the midlatitudes and polar jets follow the path of jet streams which increases its intensity. Mid latitudinal regions experience a collision of the continental polar (cp) and maritime tropical (mp) air masses. Wind shear: a gradient of wind direction or speed that can be unstable. Described to be either horizontal wind shear or vertical wind shear. Fronts: the boundary between cold air masses and warm air masses. Designated by alternating half circles (red) and triangles (blue)
