Hey Ray! The Science Behind What Causes Bridges To Freeze First
Pittsburgh has a lot of bridges -- 446 of them! With bridges, there are additional things to be alert for in colder weather, such as ice.
Watch CBS News
Pittsburgh has a lot of bridges -- 446 of them! With bridges, there are additional things to be alert for in colder weather, such as ice.
Late in winter, people usually start looking for signs that spring is on the way. The most popular is Punxsutawney Phil. The groundhog isn't the only animal though.
We have talked about how each snowfall is different. How snow is created is different, too.
The hardest season to predict weather is winter, mainly because of snow.
The Moon is neat to watch because it has several different looks during its 27 day cycle. It sometimes looks like a fingernail. Other times it looks like half of a pie, and other times it is a bright, shiny disk in the sky.
Often, I get asked, "Why are you called a meteorologist when you study and predict weather, not meteors?"
The term "polar vortex" may sound like a cold version of a "sharknado", but unlike a sharknado, the polar vortex is a real, meteorological thing.
Standing on Earth and looking out, the Earth looks flat from our very limited view. We know the Earth isn't flat, though. Did you know Earth isn't a perfect sphere either?
After a snowfall, we all like to brag about how much fell, so it is important to measure snow properly. While it sounds like an easy task, you must follow some rules.
Unlike a certain popular television show, we know that winter is coming and exactly when it will get here.
You may have heard about the Christmas Star that will become visible in the December sky. What is it, how rare is it, and how do you see this "star"? Meteorologist Ray Petelin has the answers.
When it comes to thunderstorms, can you really tell how far away a storm is by counting the seconds between the flash of lightning and the rumble of thunder? The answer is yes, but there's a little more to it.
KDKA meteorologist Ray Petelin explores the science behind gravity with slow-motion and a slinky.
When the air in your house gets dry, you may notice you get shocked when touching door knobs, and your hair goes crazy when you take off a sweater.
We are now in the time of year where our furnaces roar back to life, and once the furnaces come on, you may notice the air in our homes becomes much drier.
Some kind of clouds can help predict the weather.
If you've ever wondered how hurricanes get their names, KDKA First Alert Meteorologist Ray Petelin is here to explain how!
We use salt for so many things these days, but did you know that it can be used to make ice cream? Ray Petelin shows you how in an all-new Hey Ray!
One of the coolest things to see in the summertime happens from late July through late August.
You've heard the phrase "Dog Days of Summer," but you'd be surprised to learn it has nothing to do with our furry friends. Ray Petelin explains in a new Hey Ray!
You have certainly heard the name from the classic 80s movie, but it's more than just that. It's a meteorological phenomenon. Ray Petelin explains!
Sound and energy are really cool things, but Ray Petelin shows how that energy can be transferred from one place to another in a new Hey Ray!
Some cloud formations can look downright creepy and those clouds are shelf and wall clouds. Meteorologist Ray Petelin explains what they are, how they form, and what kind of threat they pose in a new Hey Ray!
You've heard the term "Cone of Silence," right? Well, Ray Petelin is here to explain how it's more than just a concept from TV and movies, it applies to weather!
While a deck of cards may seem ordinary, once you shuffle them, something special happens! Ray Petelin explains in a brand new Hey Ray.
Wright hosts the back-to-school event every year.
Seiya Suzuki hit a tiebreaking single in the eighth inning, and the Chicago Cubs beat the Pittsburgh Pirates 3-1 for a sorely needed victory.
The move comes as federal agents and National Guard troops have begun to appear across the heavily Democratic city after President Trump's executive order earlier this week.
Motorists should expect congestion, delays, and detours throughout Oakland and surrounding neighborhoods.
Police say investigators believe alcohol was a factor in the crash.
The move comes as federal agents and National Guard troops have begun to appear across the heavily Democratic city after President Trump's executive order earlier this week.
President Trump announced the news on Truth Social hours after meeting with Russian president Vladimir Putin in Alaska.
President Trump and Russian President Vladimir Putin held a high-stakes summit in Alaska, but the talks did not yield a ceasefire in Ukraine.
President Trump and Russia's President Vladimir Putin held a rare meeting Friday at Joint Base Elmendorf-Richardson in Anchorage, Alaska.
Pennsylvania Democrats are promoting a bill that would ban federal agents from wearing masks while working in the state.
Shayna, known for her popular TikTok account, Saving With Shayna, joined us to share her ultimate list of back-to-school deals.
Pennsylvania Attorney General Dave Sunday has joined a national effort to crack down on robocalls.
Billionaire Mark Cuban was back in the Pittsburgh area, as he announced a new partnership with Giant Eagle.
It's no secret that for many people, they wait until the last minute for back to school shopping.
Back-to-school shopping season is in full swing. We broke down how to shop smart before the first bell rings.
We'll miss our beloved Team PTL members, Patty and Steve! We wish them all the best in retirement!
That's a wrap for this week on PTL!
If you're looking to invite a unique guest to your final summer pool party, Merveda the Mermaid is available in western Pennsylvania! Team PTL's Daisy Jade gets to know the aquatic attraction!
What's summer without a little bit of outdoor competition? Team PTL has a little bit of friendly fun thanks to Yinz Bounce N'AT!
If you're still looking for some last-minute summer fun, you can head to DelGrosso's Park in Altoona, and that's where we find Team PTL's Daisy Jade learning about all the fun they have to offer!
The Shuman Juvenile Detention Center reopened last summer with the promise of taking serious juvenile offenders off the street.
Amid questions surrounding Pittsburgh's budget challenges, the two candidates for mayor shared what they think needs to be done.
Is Pittsburgh headed for a budget crisis, or is it already in crisis?
At the end of the last school year, Brownsville Area School District put a ban on all wearable technology.
Experts are examining the potential connection between air quality in the Mon Valley and student absenteeism.
The Allegheny County Health Department detected West Nile Virus in more samples this week and will now treat several neighborhoods.
This weekend's distribution continues an effort that has led to a steady decline in rabid raccoons in Allegheny County over two decades.
Low levels of the bacteria that causes Legionnaires' disease were detected at the county's South Campus in Mohnton, Pennsylvania.
Police in West Virginia shot and killed a man who became violent in a hospital emergency room and produced a knife.
Instagram rolled out a new Map feature that lets users see their friends' locations in real time. Here's why privacy experts are concerned.
Seiya Suzuki hit a tiebreaking single in the eighth inning, and the Chicago Cubs beat the Pittsburgh Pirates 3-1 for a sorely needed victory.
Western Pennsylvania has historically been a hotbed for producing talent that succeeds in the NFL.
Kickoff for the Steelers-Buccaneers game is set for 7 p.m. and you can watch the game on KDKA-TV.
Jack Suwinski hit a tiebreaking solo homer in the ninth inning to give the Pittsburgh Pirates a 3-2 win over the struggling Chicago Cubs.
The team from Upper Uwchlan Township in Chester County, Pennsylvania, will now head to the elimination bracket.
The company announced the layoffs as part of a comprehensive cost reduction plan due to reduced sales.
Grant Bar and Lounge in Millvale is for sale.
Ten restaurants in Pittsburgh earned prestigious awards from Wine Spectator for their world-class wine selections.
After only three years, Midland Innovation and Technology Charter School is closing its doors.
Mario Lemieux and Ron Burkle sold the Penguins in 2021 for $900 million and the team could be worth double that price now.
Taylor Swift's upcoming album release and her love of all things orange isn't lost on her fans — or businesses clamoring for a piece of the action.
The Little Italy Days festival in the heart of Pittsburgh's Bloomfield neighborhood is Italian heaven.
Swift joined "New Heights" alongside Travis Kelce, opening up about their relationship, buying back the master recordings of her first six albums, Easter eggs and her upcoming album.
Country music icons Rascal Flatts are hitting the road again next year for their "Life Is A Highway" tour.
President Trump announced this year's "truly exceptional class" of Kennedy Center Honorees and said he will host the annual ceremony himself.
Gary Parker Memorial Park in West Mifflin was the site Saturday afternoon of a special back-to-school bash put on by a local WNBA champion.
Get the latest weather updates with First Alert Meteorologist Kristin Emery's forecast!
An elementary school teacher and youth volleyball coach in Butler County has been arrested and is accused of sexual misconduct involving a teenager. KDKA-TV's Jessica Riley has the latest details.
Watch as teams from Armstrong, Butler, and Carmichaels high schools compete on this edition of KD Quiz!
Watch as teams from Armstrong, Butler, and Carmichaels high schools compete on this edition of KD Quiz!
Spaun made a thrilling 64-foot birdie putt to win the U.S. Open at Oakmont Country Club.
It was a wet and rainy day at Oakmont Country Club for the third round of the U.S. Open.
Oakmont continued to flex its muscles against the world's best at the U.S. Open on Friday.
The 125th playing of the U.S. Open got underway Thursday morning at Oakmont Country Club.
The best golfers in the world are at Oakmont Country Club preparing for the U.S. Open.
