Northern plains of India
Explanation
The "Loo" is a specific type of local wind characterized as a strong, gusty, hot, and dry wind. It originates due to intense heating of the landmass during the summer season and is a prominent climatic feature of the Indian Subcontinent.
Detailed Analysis
- Region of Occurrence: The Loo blows primarily over the northern and northwestern parts of India. Its influence extends across the Indo-Gangetic plains, covering regions from Punjab to Bihar, including Delhi and Uttar Pradesh.
- Timing and Characteristics: These winds typically blow during the day, often starting in the forenoon and continuing until late evening, during the months of May and June. The temperature range often lies between 45°C and 50°C.
- Impact: Direct exposure to these winds can be fatal, often leading to heatstrokes. They cause extremely low humidity and high temperatures, drying out vegetation and affecting human health significantly.
- Exclusion of Other Regions:
- Coastal areas: These regions experience the moderating effect of the sea (land and sea breezes) and high humidity, preventing the formation of hot, dry winds like the Loo.
- Southern Plateau: While hot, the peninsular region does not experience the specific "Loo" phenomenon, which is unique to the continental climate of the northern plains.
- North-eastern hills: The topography and climatic conditions here differ, often receiving pre-monsoon showers (Nor'westers) rather than dry heat winds.
Key Takeaway: The "Loo" is a hot, dry, and oppressive local wind specific to the Northern Plains of India during the summer season, known for causing heatwaves and heatstrokes.