Jet streams, El-Nino and the shifting in the position of ITCZ influence the mechanism of Indian weather. Jet streams are bands of strong wind that generally blow from West to East all across the globe. - El Nino refers to the unusual warming of the East-central and central equatorial Pacific oceans which affect global weather. - The Inter Tropical Convergence Zone (ITCZ) is a belt of low pressures which circles the Earth generally near the equator where the trade winds of Northern and Southern hemisphere come together.