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Weather Systems
Mid-Latitude weather Systems and basic weather definitions
| Term | Definition |
|---|---|
| Pressure Gradient Aloft is: | The change in air pressure between two points high in the atmosphere. |
| Temperature Gradient is: | A slope that describes how temperature changes over a specific distance. |
| Jet stream pattern (1): | The Zonal pattern blows from West to East and moves in a straight pathway, keeping the weather moving fast and mild. |
| Steady-State low pressure is: | When a low-pressure system maintains itself for a long period of time, with constant cloudiness and rainfalls. |
| Steady-state high pressure is: | When a high-pressure system maintains itself for a long period of with, with constant clear skies and stable weather. |
| Upper-level disturbance is: | When a small shortwave / ripple of pocket energy forces air upwards, causing a "disturbance." |
| Temperature Advection is: | The horizontal movement of temperature by wind. |
| Stationary Front is: | When two air masses are next to each other and not moving. |
| Cold Front is: | When the cold air mass moves first, pushing against the warm air, which forces the warm air to move up. |
| Warm Front is: | When the warm air moves first, sliding up and over the cold air. |
| Occluded Fronts is: | When the fast-moving cold air cuts through, lifting the entire slow warm air off the surface and meets another cold air on the other side. |
| Warm Conveyor belt is: | When a moist and warm stream of air goes up and over the cold air, creating precipitation, clouds, and rainfalls. |
| Dry Conveyor belt is: | When a very cold and dry air follows behind a cold front and clears areas in the clouds. |
| Cold Conveyor belt is: | When a cold and dry air near the surface arises ahead of the storm, centers the low pressure system, wraps around the storm and creates the heaviest snow. |
| What are Jet streams? | Jet streams are high-altitude river of air that is caused by a massive temperature gradient. |
| A Front is: | When two air masses meet and typically the dry, dense air will remain at the surface and the warm, humid air will rise. |
| Instability (Fronts): | Refers to a life or rise in the air (either air mass), creating a low pressure system. |
| Mid-Latitude Cyclones is: | A large-scale, low-pressure system swirling cold air and warm air together. |
| Jet Stream Pattern (2): | The Meridional pattern is a winding mountain road (S line) that moves North to South, and causes big temperature clashes and giant storms. |
Created by:
Elavinahla8
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