Observations and models showed that tropical cyclone outer size increased in the western North Atlantic since 1979.

Climate change is bringing more extreme summer weather, from heat waves to hurricanes, that can disrupt the flow of electricity. Here’s how PNNL scientists are working on solutions to protect the nation’s electric grid.

New work finds hurricanes are intensifying faster close to the coast—a trend that’s likely to ramp up in a warmer world.

The frequency and intensity of storms affecting U.S. coastal areas will likely increase in a warming world.

New research finds that global warming will bring stronger and more frequent hurricanes to U.S. coasts, up by a third compared to current levels.

Scientists at PNNL are working to better prepare authorities, emergency responders, communities and the grid in the face of increasingly extreme hurricanes.

Climate change sets the stage for hurricanes to rapidly intensify faster, bringing wetter storms to the U.S. Atlantic Coast and other coastlines.

Tropical cyclones induce sea surface cooling, but their associated heavy rainfall reduces the effect through increased ocean mixing.

New analysis demonstrates that the Madden-Julian Oscillation can influence tropical cyclones in the Pacific through both the atmosphere and the ocean.

A new analysis assesses the impact of model resolution on the Subtropical Eastern North Pacific sea surface temperature bias.

A new model offers more accurate predictions of how intensely hurricanes may strike.

Scientists created a benchmark dataset and explored new algorithms to better predict changes in the intensity of North Atlantic tropical cyclones.

A positive shift in the Atlantic Multidecadal Oscillation and changes in the large-scale hurricane environment are behind the increase in magnitude of rapid intensification.

Researchers uncover a nonlinear relationship between South Asian monsoon rainfall and water vapor over the tropical Indian Ocean in Earth system models.

Sea surface temperatures have less influence on tropical cyclone intensification in the Atlantic than in the Pacific.

Hurricanes that intensify rapidly do so more strongly and quickly now than they did 30 years ago.

Improving the representation of upper-ocean layers in hurricane forecast models enhances their predictive skill.

Researchers at PNNL are scrutinizing the factors that influence the intensity of hurricanes like Irma, Harvey and Jose.

Super typhoons grow more intense when their fresh rains reduce the ocean below's salinity.