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Weather and Climate

A truck hauls a load of dirt in the riverbed of the Santa Cruz where it's crossed by St. Mary's, May 16.

Tucson Riverbed Clearing Underway

May 17, 2019 The Santa Cruz and Rillito channels are being readied for monsoon rains.
Wildland firefighters watch smoke from a wildfire.

Forecast: More Fire Danger, Later Monsoon

May 1, 2019 While rains are expected later than usual, monsoon is always hard to predict.
Alaskan tundra. A recent paper says preserving natural ecosystems, like tundra, is an important part of meeting climate goals.

Biodiversity Roadmap Calls For Conserving Ecosystems to Save the World

Apr 22, 2019 An author of the study says preservation is essential to meeting carbon goals and to stabilizing vital, interconnected systems.
Author Todd Miller joins Lorraine Rivera in the Arizona 360 studio on April 11, 2019.

How Climate Change Factors Into Migration From Central America

Apr 12, 2019 A discussion with author Todd Miller.
Courtesy image adapted from part of an award-winning CAPLA project by UA graduate Kate Stuteville modeling sea-level rise.

UA Architecture Grads Forecast Future Effects of Climate Change

Apr 12, 2019 The projects were honored for designing innovative solutions for San Francisco Bay area.
Two decades after Hurricane Mitch, clean and safe water supplies are still a challenge in rural Honduras.

Drought, Mudslides Drive Central American Migrants North

Apr 12, 2019 Climate change impacts are exacerbating pre-existing crises that lead to out-migration, a Tucson-based journalist says.
Climate change will mean hotter temperatures and likely longer periods of drought for the Southwest.

Effort Aims to Help Local Governments Understand and Apply Climate Data

Apr 11, 2019 The Science for Climate Action Network wants help cities and states adapt and respond to climate change.
A "Fire Traffic Only" sign during the 2017 Frye Fire in the Pinaleño Mountains.

Fire Danger Warnings Cover Much of Southern Half of Arizona

Apr 10, 2019 Tucson and Phoenix are included in the "red flag" warning areas.
The sun peers through the clouds in Southern Arizona.

Tucson Temps Break 90 Degrees

Apr 8, 2019 The temperatures in Tucson will continue to rise Tuesday, as April opens the door to fire season.
Tucson snowfall on the Finger Rock Trailhead, 2015.

How Extreme Weather May Affect Arizona

Apr 1, 2019 Valerie Trouet, a UA tree ring professor, discusses parallels between Arizona and California and the consequences of rising temperatures and extreme weather.
Lake Mead outside Las Vegas, Nevada, serves as the Colorado River's largest reservoir and a key water source for Arizona, California, Nevada and Mexico.

High Snowpack Could Temporarily Stave Off Colorado River Water Shortage

Mar 19, 2019 But federal officials are quick to remind that one wet winter won’t solve the Southwest’s structural water problems.
Looking west as a dust storm forms near Interstate 10 in Pinal County, July 10, 2018.

Advanced Dust Storm Detection Coming for I-10 Drivers

Mar 19, 2019 ADOT's radar-based system rolls out later this year.

Monitor: Pima County is Drought-Free, for Now

Mar 15, 2019 The spell will not last long as the temperatures rise.
A firefighter sets a back burn to contain the Poomacha Fire in San Diego County, California, 2007.

Tree-Ring Research Reveals Broken Connection Between Weather and Wildfires

Mar 8, 2019 UA professor Valerie Trouet co-authored a study showing jet stream moisture no longer predicts California wildfire severity.
Northern Arizona University in Flagstaff.

Recent Storm Costs NAU at Least $100K In Snow Removal Alone

Mar 5, 2019 Although exact costs aren't finalized, officials said clearing the pathways around campus was a costly endeavor.
Students and staff enjoy the snowfall on the University of Arizona mall. From February 22, 2019.

An Unusual Tucson Sight: Snow in the City

Feb 22, 2019 While multiple feet blanketed the mountains, flakes were falling on the city Friday morning.

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