A new metric to help understand Amazon rainforest precipitation

In the Amazon rainforest, the chain of events that turns a small-scale process like a localized increase in evaporation into a towering storm cloud is long and twisted. To understand the complex dynamics that lead to precipitation, ...

New data reveals how storms are triggered in the Sahel

In the Sahel, the frequency of storms increases when soil moisture varies over a few kilometers. Such contrasts cause air circulation between dry and humid areas, contributing to the development of storms. For the first time, ...

US forecasters predict busy 2011 hurricane season

Last year's record hurricane season will be followed by another unusually busy one, with 16 named storms expected this year, US weather forecasters predicted on Wednesday.

Pacific El Nino equals Atlantic hurricane calm: experts

The Pacific's El Nino ocean-warming phenomenon has resulted in an especially calm Atlantic hurricane season -- a welcome respite for Caribbean and southeastern US residents still smarting from a 2008 pounding.

Beating the radar: Getting a jump on storm prediction

Satellite observation of cloud temperatures may be able to accurately predict severe thunderstorms up to 45 minutes earlier than relying on traditional radar alone, say researchers at UW-Madison's Space Science and Engineering ...

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