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Weather and Climate

The 2013 Rim Fire in California burned more than 257,000 acres.

Climate Change and Adaptation in the Southwest

Dec 6, 2018 Two recent reports have brought renewed attention to the effects of climate change on local, regional and global levels.
A research station collects snow data in Colorado's San Juan mountains, March 2018.

Early Season Snow Delights Skiers, but the Drought is Far From Over

Nov 23, 2018 Experts say the bigger picture is more complicated, and is compounded by the effects of climate change.
Earth's North Polar region.

Climate Change Could Drive Vegetation Changes

Nov 19, 2018 Tucson-based scientist charting similar changes from Ice Age.
Vehicles driving in the summer heat.

$4.5M to Support UA Center's Research on Climate Change

Oct 30, 2018 The Southwest Climate Adaptation Science Center is an initiative investigating climate change in the Southwest.
Residents of Southern Arizona employ water-saving methods to grow produce.

Citizen-Science Project Looks to Test for Polluted Rainwater

Oct 29, 2018 The five-year program teaches residents how to measure what's in their harvested rainwater.
Cracked earth in the Joshua Tree National Park, where the National Park Service says severe drought and warming temperatures will likely affect the populations and home ranges of many species.

El Niño Could Bring Drought Relief to the Southwest

Oct 24, 2018 El Niño rainfall could relieve drought conditions in states like Arizona, but drought will persist elsewhere.
The National Weather Service in Tucson, Arizona.

Cool, Wet October Follows Hottest September Recorded

Oct 15, 2018 This October is on track to be one of the rainiest.
More than 80 volunteers helped fill and place sandbags at Menagers Dam.

Dozens Remain Displaced as Tohono O'odham Nation Continues Flood Recovery

Oct 9, 2018 Damage assessments continue days after a tropical storm came close to breaching an earthen dam.
A wash in Tucson begins to flood its banks after heavy monsoon rain.

Flood Management Plan Could Bring Lower Insurance Rates

Oct 4, 2018 Pima County supervisors start process to draft a new plan that could save homeowners on flood insurance.
Photo published on the Tohono O'odham Nation's Facebook page captioned "Flooding near Menagers Dam Community."

Officials Warn Dam Could Fail and Flood Tohono O'odham Village

Oct 3, 2018 An earthen dam stands between a lake swollen with runoff and the community of Ali Chuk.
Raindrops fall in pooling water on a Tucson street.

Rosa Brings Rain, But It Doesn't Break Records

Oct 2, 2018 Most of the precipitation from the storm fell on the west side of Tucson.
Phoenix, Arizona.

Heat Deaths Climb in Phoenix, But Not in Tucson

Sep 10, 2018 Experts say Maricopa County is warmer due to an "urban heat island" effect.
Rain and sunlight interact over Tucson, July 5, 2018.

4 More Weeks of Monsoon, Tucson Has Beaten Normal Rain Totals

Sep 4, 2018 Tucson has received more than six inches of rain since the monsoon began, and much of Southern Arizona has surpassed normal totals.
Firefighters assigned to the Obi Fire approach the fireline. Lightning caused the fire in Walhalla Plateau in Arizona on July 21, 2018.

How Climate Change Could Affect Wildfires in Arizona

Aug 27, 2018 What conditions experts are monitoring during the state's wet and dry seasons.
Raindrops fall in pooling water on a Tucson street.

Weather Service: Heavy Flood Potential Through Friday

Aug 22, 2018 Moist and unstable air mean flooding is possible anytime, anywhere.
A lightning strike over east Tucson.

Monsoon Lightning Zaps Tucson Weather Radar Tower

Aug 14, 2018 Forecasters used work-arounds during weekend thunderstorms.

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