June 2, 2015

Rainfall totals across parts of Texas and Oklahoma were several hundred percent above normal in May 2015, leading to record-breaking flood levels on many rivers.

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May 20, 2015

A record-setting day of rain in Oklahoma City caused widespread flooding in early May 2015. How rare was the event?

April 24, 2015

A weak high, a cut-off low, and rapid ocean warming conspired to dump torrential rains in Chile's Atacama Desert in late March 2015.

April 16, 2015

What happens when years' worth of rain falls in the Atacama Desert in one day? Tremendous flash flooding. 

January 29, 2015

Devastating floods across Malaysia and Thailand in late December and mid-January bear the hallmarks of an enhanced MJO climate pattern superimposed on the seasonal monsoon.

January 23, 2015

During the second half of December and the beginning of January, places from Sri Lanka to northwest Australia experienced exceptionally heavy rains, flash floods, and landslides.

October 2, 2014

Last September’s widespread flooding in northeast Colorado, which saw just over 17 inches of rain in one week in the city of Boulder, was not made more likely or more intense by the influence of human-induced climate change on atmospheric moisture.

September 10, 2014

Flash floods scoured Phoenix and surrounding areas on September 8, 2014. How did the rainfall totals compare to normal September precipitation?

September 8, 2014

It's the time of year for potentially toxic algae blooms in Lake Erie. But the stage for most blooms is set in spring.

November 6, 2013

October in Alaska this year was more like September, with warmth and rain in place of autumn chill and snow. Wind anomalies related to unusual pressure patterns conspired to bring a steady stream of warm, wet air from southerly latitudes into Alaska.

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