Our stormy season officially starts on Friday, and the forecast is for above-average rainfall and warmer-than-average temperatures. The storms provide up to half of Tucson's annual rainfall.
Ancient rainfall records stretching 550,000 years into the past may upend scientists' understanding of what controls the Asian summer monsoon and other aspects of the Earth's long-term climate, reports a UA-led international team of researchers.
A new clinic addresses matters pertaining to water, endangered species, public lands, climate change, tribal lands and other natural resource challenges that exist in Arizona and the West.
Forecasts favor above-average temperatures and average to below-average precipitation for the Rio Grande/Bravo Basin through July.
With scarce water supplies, a sweltering climate and a rising population, can desert cities such as Tucson and Phoenix sustain us? Three UA experts say they are optimistic.
Precipitation varied across the Southwest in March, but temperatures remained warm throughout the region. Drought-designated areas were expanded in the April 17 U.S. Drought Monitor, with Arizona and New Mexico documenting increases in the extent and intensity of drought. The three-month outlook for April through June calls for equal chances of above- or below-average precipitation in Arizona and New Mexico and increased chances of above-average temperatures for the entire southwestern United States.