Extreme weather

The big picture

Historic heat wave expands across California, wildfire risk builds

More record temperatures are likely to fall Thursday as the wildfire threat escalates.

Updated 15 hours ago - Energy & Environment
Southwest heat wave intensifies, breaks records and worsens drought

Death Valley, California could approach its hottest-ever readings.

Updated Jun 16, 2021 - Energy & Environment
Heat wave enveloping West will shatter records, spark wildfires

The heat could shatter Las Vegas' all-time high temperature record of 117°F.

Updated Jun 15, 2021 - Energy & Environment
Dangerous heat wave underway in West, will shatter records

Las Vegas may see its hottest temperature on record, as a relentless heat wave settles in for the week.

Updated Jun 14, 2021 - Energy & Environment
As early season heat roasts U.S., records tumble in Middle East

Temperatures hit 125.2 degrees in the United Arab Emirates, tying an all-time national record.

Jun 8, 2021 - Energy & Environment
Southwest's new climate peril

Some parts of the world are already getting close to, or slipping beyond, the Paris agreement's temperature limit.

May 30, 2021 - Energy & Environment

All Extreme weather stories

In photos: Record heatwave grips West, threatens fires

Los Angeles Fire Department mops up a brush fire in Elysian Park on Wednesday, June 16, 2021. Photo: Gary Coronado / Los Angeles Times via Getty Images

A record-breaking heatwave in the western part of the United States has caused fires in Montana, Arizona and California.

Why it matters: The West is already experiencing an intense drought, which studies show is being exacerbated by climate change. In the coming days, more than 40 million people in the West and Southwest could see temperatures exceed 100°F.

12 hours ago - Science

New map reveals where rivers run dry

Clauge River in Jura, France, in nonflowing phase. Photo: Bertrand Launay/National Research Institute for Agriculture, Food and Environment

A new detailed map reveals more than half of the world’s network of rivers and streams runs dry for at least one day each year.

Why it matters: Knowing how often and for how long rivers stop flowing is important for managing water resources and conserving species adapted to these unique ecosystems, but so-called nonperennial rivers are understudied and often overlooked.

2 Arizona wildfires burn 60,000 acres and force hundreds to evacuate

The Telegraph Fire, three miles south of town of Superior in Pinal County, Arizona. Photo: Tonto National Forest/Twitter

Two wildfires in eastern Arizona have triggered evacuation orders for hundreds of people as they burned across some 60,000 acres Sunday, per CNN.

Driving the news: The fires are burning amid hot, dry conditions and as much of the state is experiencing an "extreme" or "exceptional drought."

Jun 4, 2021 - Science

Utah governor asks residents to pray for rain amid brutal drought

The Bears Ears Mountains outside of Blanding, Utah, in April 2021. Photo: George Frey/Getty Images

Utah Gov. Spencer Cox (R) issued a declaration on Thursday that urges residents to pray for rain as the state experiences record drought.

Why it matters: At least 90% of the state is currently experiencing "extreme" to "exceptional" drought, the two worst categories, according to data from the U.S. Drought Monitor.

More Extreme weather stories