Track of Loop Current in the Gulf of Mexico
February 25, 2011
The less-than-predicted amount of oil reaching coastlines after the Deepwater Horizon spill illuminates the difference between a projection and an actual forecast and the challenges of making short-term projections of natural processes that can act chaotically.
Strong temperature anomalies across eastern Canada, mid-Dec to mid-Jan 2010/11
January 18, 2011
In December 2010, media dutifully reported the heavy snow that battered the northeast U.S. and the United Kingdom’s coldest December in at least 100 years. Meanwhile, the sparsely populated Canadian Arctic basked in near-unprecedented mildness.
A motorist near Central Park tries to enter his snowbound vehicle
December 30, 2010
It's good to remind ourselves how far weather prediction has come in recent years. The ferocious winter storm that assailed the U.S. Atlantic coast in late December 2010 offers a great case in point.
People using rowboats on streets of Sacramento
December 22, 2010
Strong jet streams often plow into the West Coast in wintertime, but the heaviest rains and snows occur when the flow dips far south over the Pacific, allowing it to bring an atmospheric river of warm, moist air from the subtropics to California.
Currents | UCAR Magazine | Boulder's tempestuous temperatures
December 02, 2010
Huge temperature swings are well known to residents of the Front Range of Colorado, thanks to the arrival of sharp winter cold fronts as well as chinook-driven warm-ups.
Hurricanes Igor and Julia, 15 September 2010
December 02, 2010
Issuing a five-day weather forecast was once a daring enterprise. Today, we’re not only accustomed to long-range weather forecasts but also to seasonal-scale outlooks. Hurricanes and sea ice show how far we've come.



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