What makes one stream a creek and another a river? | Hey Ray
Western Pennsylvania has several creeks and rivers in our area, so what is the difference?
Watch CBS News
Western Pennsylvania has several creeks and rivers in our area, so what is the difference?
We've got a mystery to solve! Why does it seem like you can only hear the train whistle at Fallingwater when it's going to rain?
Hey Ray, why is it when it gets too hot, airplanes cannot fly?
If you've ever noticed a difference in humidity from higher vegetation to lower vegetation, it's something known as "corn sweat."
Using just some markers, water, and plastic bags, we can make art disappear!
Even when you aren't moving, you're still moving through the universe at a pretty incredible rate!
An old idea says you should open windows before a tornado to equalize the pressure, but does that work?
On beautiful days full of sunshine, sometimes some puffy clouds develop that look like cotton balls.
We often hear the terms 50-year and 100-year floods but what exactly do those terms mean?
It's believed that with all the hills and valleys in Pittsburgh, tornadoes can't happen here, but that could not be further from the truth!
We've gone over the elements of the total solar eclipse, and now, with it just days away - let's get into the specifics.
With the eclipse coming up, here are some things you can say to sound like an eclipse expert!
Alright, it's time to ask the question - what if it's cloudy on April 8?
When the solar eclipse happens, we'll see some squared and squiggly shadows. Ray Petelin explains why!
Surely by now, you're looking for ways to look at the upcoming solar eclipse, so let's do some homemade crafting!
While we may dream of a White Christmas in the 412, the weather is often much more interesting than that. Ray Petelin explains in a new Hey Ray!
Every generation when they get older love to brag about how much snow they had to deal with as a kid, but which Pittsburgh generation has the bragging rights? Ray Petelin breaks it down!
Did you ever notice your breath can heat and cool things? Meteorologist Ray Petelin shows us the science of how that works!
You certainly know the dark color of pop, but did you know you can use milk to take the color out of it? Ray Petelin shows you the science in a new Hey Ray!
Lighting a candle seems pretty normal, and pretty easy, but sometimes, the way it lights can be anything but normal. Ray Petelin breaks down the science in a new Hey Ray!
Have you ever been sitting around a campfire, get up and move, only to have the smoke you were trying to avoid follow you? Well, as Ray Petelin explains, there's a scientific reason for that!
Whether you call it pop or you call it soda, there's a way to make the can go pop without cracking the tab! Ray Petelin shows you how in a new Hey Ray!
Spots on the Sun's surface can tell us a lot about what is going on with the Solar Cycle. Ray Petelin explains why they're important to watch in a new Hey Ray!
You may have heard us talk about "meteorological seasons" that don't match up with the seasons you typically see on the calendar. While that may sound weird, there is a reason meteorologists use these different dates. Ray Petelin explains in a new Hey Ray!
One viewer wrote in to ask Ray Petelin, why do storms have different names around the world? Well, while it's true they do go by different names around the world, they're still the same kind of storms.
The Pittsburgh Steelers will play the Baltimore Ravens in the final game of the 2025 regular season to decide the winner of the AFC North.
The Penguins led 4-0 midway through the first period.
A woman has died after she was found unresponsive in Pittsburgh's Perry North neighborhood early Sunday morning.
A popular restaurant in Armstrong County will be closing its doors for good by the end of the year.
A teenage boy has died from his injuries after he was struck by a vehicle in West Mifflin on Saturday.
Bank of America Chairman and CEO Brian Moynihan stated last week that, as President Trump seeks a new chair of the Federal Reserve, maintaining the banking system's independence is paramount.
Strikes against ISIS targets in Nigeria come after President Trump spent weeks accusing the West African country's government of failing to rein in the persecution of Christians.
President Trump said TV broadcast licenses should be revoked if newscasts and late-night shows are almost entirely negative about him and the GOP.
Gov. Mike DeWine has signed legislation eliminating Ohio's four-day grace period for late-arriving mail-in ballots.
The Justice Department early Tuesday released more than 11,000 additional documents and photos from the Jeffrey Epstein files.
Pennsylvania will receive nearly $7 million as part of a nationwide settlement with Mercedes-Benz USA.
People in Armstrong County communities like Worthington and Kittanning say they're not getting packages they ordered weeks ago from Amazon.
As more data centers are approved in southwestern Pennsylvania, state lawmakers are taking steps to make sure the centers pay their fair share and are good neighbors in their communities.
If you haven't sent gifts in the mail yet, you don't have much time left.
The Pittsburgh International Airport is getting nonstop flights to Dublin next year.
We asked, and you delivered! Your pets have gone full holiday mode!
Everyone is competing against each other to see who can wrap their oddly shaped present the fastest!
From timeless classics to some questionable choices, we're spilling all our favorite holiday movie secrets!
Secret Santa has become a yearly tradition on Pittsburgh Today Live and Talk Pittsburgh!
A Pittsburgh-area couple is vying for the championship on one of television's most talked-about baking shows.
Health care workers say a powerful new street drug is clogging Pittsburgh-area emergency rooms with people suffering from violent withdrawal symptoms.
Seven employees of the Allegheny County-run Kane Community Living Centers in Scott Township have been under investigation.
Veterans are outraged after learning about damage done to gravesites at a cemetery in Fayette County.
Artificial intelligence is watching where people park in Pittsburgh.
Drivers who were convicted of infractions years ago are being told to surrender their licenses or file costly appeals because Allegheny County never processed the paperwork.
Thousands of Pennsylvanians are dropping their health insurance as premiums are set to double on Jan. 1, 2026.
Health care workers say a powerful new street drug is clogging Pittsburgh-area emergency rooms with people suffering from violent withdrawal symptoms.
Millions of people with an Affordable Care Act health plan face a massive jump in premiums next year — this chart shows just how much.
A Pennsylvania man visited Penn to thank the surgeon who saved his life during a stroke.
NFL players say they will continue with dry-needling sessions despite a recent incident involving the Pittsburgh Steelers' T.
The Pittsburgh Steelers will play the Baltimore Ravens in the final game of the 2025 regular season to decide the winner of the AFC North.
Western Pennsylvania has historically been a hotbed for producing talent that succeeds in the NFL.
The Penguins led 4-0 midway through the first period.
Cleveland's defense kept Pittsburgh out of the end zone and the Browns held on for a 13-6 victory, preventing the Steelers from clinching the AFC North.
Cory Sanders will enter his ninth season on Pitt's coaching staff.
There won't be a Westmoreland County Airshow next year because of construction at the Arnold Palmer Regional Airport.
The Pittsburgh International Airport is getting nonstop flights to Dublin next year.
Members of the Newspaper Guild of Pittsburgh voted last week to end their three-year-long walkout.
Norfolk Southern railroad worked with the state of Ohio and Youngstown State University to revive plans for a $20 million first responder training center near the site of the worst derailment in a decade in East Palestine, Ohio.
A report on the future of water in central Ohio warns that industrial demands for water will skyrocket at the same time experts expect farmers will need to regularly irrigate their fields.
It marks the second lawsuit in recent months accusing the filmmaker and studio mogul of leveraging his power in Hollywood to make sexual advances.
The band announced Perry Bamonte's death on their official website on Friday.
The singer said an MRI showed a cancerous spot on one of his lungs after he recovered from a lengthy bout of bronchitis.
Comedian and actor Bowen Yang performed his final sketch on "SNL" Saturday night, after announcing his unexpected mid-season exit from the show.
A court in Romania has sentenced American rapper Wiz Khalifa to nine months in jail on drug possession charges.
KDKA-TV's Bob Pompeani discusses the sports topics of the day.
A teenage boy has died from his injuries after he was struck by a vehicle in West Mifflin, Pennsylvania, on Saturday. KDKA-TV's Jessica Riley shares the latest details.
Stay on top of local weather with First Alert Meteorologist Rob Wilson's forecast!
A woman has died after she was found unresponsive in Pittsburgh's Perry North neighborhood early Sunday morning.
The KD Sunday Spotlight highlighted a number of organizations throughout 2025.
Pitt's regular season has ended with an 8-4 record.
Pitt's five-game winning streak came to an end with a 37-15 loss to Notre Dame.
Mason Heintschel set a new Pitt freshman single-game passing record in the Pitt win at Acrisure Stadium.
The 44th annual KDKA-TV Turkey Fund will help our neighbors in need have a nice meal for Thanksgiving.
West Virginia scored a late touchdown to tie the game and then beat Pitt in overtime to win the 108th Backyard Brawl.