Question

Describe some of the important types of local winds.

Answer 1

1. Loo: In the summer afternoons, a hot, dry breeze from the west can occasionally blow across the plains of northern India and Pakistan. We call it loo. It always has a temperature between 45°C and S0°C. People may get sunstrokes from it.
2. Foehn and Chinook: On the Alps' leeward side, a powerful, warm wind forms. Air is compelled to pass through the barrier because of the area pressure gradient. The air cools and expands as it climbs the southern slopes of the Alps. On the higher slopes, condensation occurs as the air becomes saturated, resulting in rain and snowfall. The wind, however, feels a rise in warmth and pressure as it descends the northern slopes. As a result, the air is heated and compressed. It loses the majority of its moisture and travels as the Foehn, a scorching, dry wind, to the valley floor. The wind has a temperature between 15°C and 20°C. The wind speeds up the ripening of grapes and helps melt snow. Chinooks are a similar type of wind that travels down the west slopes of the Rocky Rockies in the USA and Canada. Chinook literally translates to ‘snow eater.’ Ranches east of the Rockies benefit from it because it prevents snow from covering the grasslands.
3. Mistral: A local cold wind that originates over the snowcapped mountains or highlands and sweeps down the valley may occur in winter in locations that are close to highlands. Locals have given these winds names. The most well-known is the mistral, which sweeps over France from the Alps to the Mediterranean Sea. The mistral lowers the temperature below freezing even though the skies are clear.