An Atmospheric River Approaches....

With indications of rain finally coming, in what has been a disastrously-dry winter so far, the Sacramento Bee has an article featuring Marty Ralph and his research into the increasingly-rare phenomenon of the Atmospheric River. Marty is an alumnus of the University of Arizona (had him in a lab for which I was TA):

A crack team of science experts is going along for the ride, part of an experiment known as CalWater 2015, many of whom gathered at McClellan Park near Sacramento on Tuesday in preparation for the major weather event and the vital information they hope to pull from the phenomenon.

“It’s a real milestone for us. Nothing of this scope has happened,” said Marty Ralph, director of the Center for Western Weather and Water Extremes at Scripps Institution of Oceanography in San Diego, of the project he’s helping to lead. “One of the drivers of CalWater was the uncertainty of climate projections. We haven’t had the data to measure the strength and structure of ARs. … There’s so much potential for the monitoring of atmospheric rivers.”