Millions more Americans will broil in extreme heat by 2053, study finds

Roughly 8 million Americans are expected to experience a heat index within the "Extreme Danger" category this year. Researchers said that by 2053, that number is expected to increase to 107 million.

Slightly cooler days ahead
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KTVU's Steve Paulson said that there will be a slight decrease in temperature in the coming few days.

Drought impact on wildlife
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California's prolonged drought is taking a toll on wildlife across the state. Experts tell KTVU that many animals are struggling to find water and food, which has prompted them to shift their behavior or migration patterns to survive.

California ISO issues Flex Alert for Wednesday, Spare the Air alert also called

California's Independent Systems Operator – which manages the state power grid, has called a flex alert due to excessive heat from 4 p.m. to 9 p.m. on Wednesday, August 17. 

New study says number of triple digit heat days will likely rise in the Bay Area

A scientific weather research center, the First Street Foundation, released a new study about rapidly rising temperatures. Experts think the number of hot, triple digit days could rise significantly.

Heat advisory and lightning possible
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A heat advisory is in effect for parts of the Bay Area on Wednesday. KTVU Meteorologist Rosemary Orozco has the complete forecast that includes the possibility of lightning strikes.

Thunderstorms possible in parts of Bay Area Tuesday night into Wednesday

The National Weather Service on Tuesday said there will be enough moisture and lift in the air above the Bay Area late in the night and into early Wednesday for a slight chance of showers and thunderstorms. 

Megafloods could submerge huge swathes of California, study predicts
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California is at risk of catastrophic "megafloods" because of climate change, according to a new study from UCLA and the National Center for Atmospheric research. KTVU's Tom Vacar reports.

Family-owned ranch adapts to water shortage
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The McEvoy Ranch in Petaluma produces olives and other crops. To survive amid a drier and drier environment, the ranch has been introducing techniques to conserve water and remain viable.

High heat brings day of wildfires to Bay Area

High heat and dry conditions, created a busy day for firefighters across the Bay Area and more of the same is expected for Tuesday.

Temps could top 100 degrees
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Steve Paulson says temperatures could top 100 degrees inland today.

Kern County bear roams Von's parking lot

A bear was seen on video footage aimlessly wandering the parking lot of a Von's grocery store in Kern County. The footage taken at Lake Isabella's Kern Valley Plaza was shared on social media on Monday. 

Firefighters respond to fast-spreading vegetation fire near Castro Valley

A vegetation fire broke out Monday afternoon east of Castro Valley near westbound Interstate Highway 580, Alameda County fire officials said. Firefighters have stopped forward progress of the fire. 

Heat, wildfire smoke prompt Spare the Air alert for Tuesday

Lingering smoke from wildland fires in Northern California, combined with a one-day heat wave in the forecast has resulted in a Spare the Air Alert for the Bay Area on Tuesday.

Deadline looms for drought-stricken states to cut water use by 15 percent

Banks along parts of the Colorado River where water once streamed are now just caked mud and rock as climate change makes the Western U.S. hotter and drier.

Excessive heat in store
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Steve Paulson says Tuesday will see excessive heat with temps in the triple digits.

Excessive heat watch has Cal Fire hopping with triple-digit temps

As the Bay Area braces for hot weather on Tuesday, CalFire says it's preparing for a potentially busy week. The National Weather Service has issued an excessive heat watch for Tuesday, with parts of the North, East, and South Bay expected to see triple digit temperatures.

Warm and sunny
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KTVU's Rosemary Orozco said temperature will go up the next few days until Wednesday.

Foggy morning, sunny later
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Steve Paulson says today will start of foggy and then get sunny in the afternoon with highs in the 90s.