Weather and Climate

Monsoon brings mixed emotions for road workers

Jul 18, 2024 The staff is on-call 24-hours a day.

Taming the Colorado

Jul 17, 2024 The Colorado River is the most dammed waterway in the US, but what was it like before? We go back to the battle over Parker Canyon Dam and how it changed Arizona's rights to the river's water forever.

Things to know about heat deaths as a dangerously hot summer shapes up in the western US

Jul 14, 2024 It is unknown exactly how many people died in the most recent heat wave beginning July 1, but early signs indicate it was an especially deadly two weeks.

Tucson receives $11M for bus stop shelters, trees and more

Jul 11, 2024 Tucson’s Sun Tran system is receiving more than $11 million from the U.S. Department of Transportation. The money is meant to fortify transit infrastructure and help protect vulnerable communities from the effects of climate change.

Monsoon storm activity picking up late in the week

Jul 10, 2024 Some areas in Southeastern Arizona could see wind gusts up to 70 miles per hour.

Pima County heat-related deaths in June topped 2023's totals

Jul 8, 2024 Days with high temperatures also saw a notable increase from the previous year.

Persistent heat wave in the US expected to shatter new records as it bakes West and swelters in East

Jul 7, 2024 Phoenix topped out at 114 F, just shy of the record of 116 F dating to 1942.

NASA map shows temperatures up to 160 degrees on Phoenix streets, sidewalks

Jul 6, 2024 Surface temperatures that hot can cause severe contact burns within minutes or seconds.

Millions swelter under dangerous Fourth of July heat wave

Jul 4, 2024 Around 134 million people in the U.S. are under alerts as an “extremely dangerous and record-breaking” heat wave broils much of the country.

Arizona researchers tackle urban heat with innovative weather data collection

Jul 2, 2024 UA team partners with DOE’s Brookhaven Lab to study and mitigate extreme heat in the Southwest.

$55.2 million to boost clean energy in rural Arizona with new battery systems

Jul 2, 2024 Federal funding will support three new battery energy storage facilities, lower energy bills, create jobs, and promote sustainability in cities like Sahuarita.

Does Arizona have enough water?

Jun 25, 2024 Phoenix-area cities are spending big to make sure it does.

At least 6 heat-related deaths reported in metro Phoenix so far this year as high hits 115 degrees

Jun 23, 2024 A heat wave baked most of the United States on Friday, with numerous areas expected to see record-breaking temperatures.

Climate change made killer heat wave in Mexico, Southwest US even warmer and 35 times more likely

Jun 20, 2024 A new study finds that human-caused climate change dialed up the heat and drastically increased the odds of this month's killer heat that has been baking the Southwestern United States, Mexico and Central America.

Tucson braces for potential monsoon storms

Jun 19, 2024 City crews are preparing barricades to direct motorists away from flooded roads.

More than 70 million people in the US are under heat alerts

Jun 17, 2024 Officials again are warning residents to take precautions, go indoors and hydrate.

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