Last updated September 20, 2017

Increased Frequency Intense Tropical Pacific Cyclones and Hurricanes

Climate change has been found to increase the rainfall and storm surge associated with hurricanes, and there is strong evidence that climate change also increases the intensity and wind speed of hurricanes. While the details are still being explored, the basics are simple. Sea level rise fuels the storm surge driven by hurricanes. Warmer air holds more moisture, feeding more precipitation from all storms including hurricanes. Hurricanes need warm water, and climate change warms sea surface temperatures, contributing to an increase in hurricane intensity, and with that an exponential increase in damage.

Tropical Pacific trends

Models indicate stronger hurricane activity in a warmer climate due to increased vorticity, reduced vertical wind shear, increased precipitation, humidity, and SST.[1]


Global trends

Visit "Increased Frequency Intense Cyclones" to discover climate change links to global cyclone trends.