NOAA’s Modeling, Analysis, Predictions and Projections program (MAPP) and NIDIS have just launched an interactive presentation that analyzes and explains the historic drought that impacted California from 2011 to 2017. This presentation, called a “Story Map” takes users through a visual history of the drought, using images and graphs to provide an interactive and engaging experience.
“Flash drought” has become a popular term in the media, but the debate of what a flash drought really is has caused confusion that affects scientists’ ability to detect their onset, monitor their development, and understand how they evolve.
Two new studies that hint at the tantalizing possibility that persistent drought conditions could be predictable one or more years in advance, using the influence of the tropical Pacific Ocean’s slow changes in temperature.
The crippling wintertime droughts that struck California from 2013 to 2015, as well as this year's unusually wet California winter, appear to be associated with the same phenomenon: a distinctive wave pattern that emerges in the upper atmosphere and circles the globe.
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