Margaret LeMone | 26 May 2011  •  The email exchange in response to my 30 March post revealed not only the enthusiasm of the Boulder weather community for clouds but also the presence of a large number of instruments probing the atmosphere over Bo...

David Hosansky | 20 May 2011  How can a relatively small increase in the average temperature of the planet lead to numerous record-breaking heat waves? The increase in average global temperatures—about 1.3º Fahrenheit since the mid-19th century—...

Bob Henson | 17 May 2011  •  Millions of eyes were on the wedding of Prince William and Catherine Middleton last month, even as another major UK news story took shape—one dealing with meteorology rather than monarchy. The wedding weather on 29 A...

Bob Henson | 28 April 2011 • The devastating rash of tornadoes that swept through the southeast United States on 27 April has already carved its way into the annals of twister history. A total of more than 160 tornadoes was reported in the prelimina...

David Hosansky | 27 April 2011 • Andrew Monaghan used to spend his time analyzing mathematical models of climate change in Antarctica, working on some of the world’s most powerful supercomputers. Now the NCAR scientist sits down with traditional h...

Margaret LeMone | 30 March 2011  •  Walking out of the NCAR Foothills Lab last Wednesday, 23 March, at 3:15 p.m. MDT, I was stopped in my tracks by an incredible sky: a high, very thin layer of small, uniform, tiny cloudlets. Since each of the clo...

Bob Henson | 23 March 2011  •  As nice as it is, the return of sunlight each spring has a few nasty side effects. One of them is sunlight’s ability to catalyze ozone destruction. That process has happened in a big way this month over the Arctic....

Bob Henson | 10 March 2011 •  Two very different kinds of flooding are in store for parts of North Dakota and Minnesota over the coming months. One has gotten a fair bit of attention from national media. The other is less well known but even more i...

David Hosansky | 28 February 2011 • During last year’s crisis involving the massive release of oil into the Gulf of Mexico, NCAR issued a much-watched animation projecting that the oil could reach the Atlantic Ocean. But detectable amounts of oil ...