Two Main Differences between Loo and Coldwave are as follows:
1. Loo are local hot winds which blow during summer afternoons in the North-west and the Ganga Valley regions.
2. Sometimes they are accompanied with dust storms and light drizzle which bring temperatures down in the afternoon.
1. Coldwave is that condition of weather during winter when very icy cold winds blow in the North-west^and Ganga Valley regions of India.
2. This brings temperature below 5°C and keeps the weather clear, cold and windy.