El Nino

• During El Nino, the trade winds weaken or reverse, blowing from west to east.
• The warmer water moves east away from Australia due to the reversed/weakened trade winds (now blowing west to east)
• The trade winds reversing/weakening leads to cooler water off the coast of Australia, therefore less evaporation which can cause drought.
• During El Nino, the warm surface currents reverse, accumulating off of South America. This causes rising warm, moist air that brings rainfall and the possibility of floods