Hey Ray: Frost wedging
Potholes make your commute this time of year a brought one, but what causes them?
Hey Ray
Hey Ray: Wind chill and temperature
You may wonder why we meteorologists don't just use wind chill - here's why!
Hey Ray: The science behind Santa's worldwide trip
For years, Ray has been trying to figure out how Santa does it and now he thinks he's cracked the case!
Hey Ray: Meteoroids, meteors, and meteorites
What is the difference between a meteoroid, a meteor, and a meteorite, and why do they burn up in the atmosphere?
Hey Ray: How 'Graupel' forms
This time of year we hear the word "Graupel" so how does form and what is it?
Hey Ray: 'Pop' Science
Did you know that there's a bunch of science packed into "pop?"
Hey Ray: Weather vs. Climate
People think a lot of things are the same, that includes weather and climate, but as Ray Petelin explains, they are not the same thing.
Hey Ray: Weather bombs
We're at the time of year when you start hearing the term "bomb cyclone." So, what does that mean?
Hey Ray: The thirsty bird
You definitely recognize the "thirsty bird" toy but a lot of science goes into making it work!
Hey Ray: Hurricanes and salty rain
When weather events like hurricanes happen, Ray gets plenty of questions, so here are some answers!
Hey Ray: The 'smell' of weather
Have you ever smelled the weather? It actually does involves some cool science!
Hey Ray: Colors that aren't colors
Did you know there are a couple of colors that scientifically aren't considered colors at all?
Hey Ray: Erasable pens and reappearing images
"Temperature sensitivity" means that the inks behavior is dependent on the temperature.
Hey Ray: The return of the disappearing ink prank
It's going to ruin someone's clothes but it does disappear.
Hey Ray: Invisibility lens
Wouldn't it be nice to disappear? While you can't you can make a special lens to make some invisibility possible!
Our Newsletter
Hey Ray Segments
Hey Ray Segments
Hey Ray: Frost Wedging
Potholes this time of year can make your commute a rough and expensive one but what causes potholes? Ray and Elizabeth Petelin are here to tell you!
Hey Ray: Wind Chill and Temperature
Many people have asked, if wind chill makes it feel like -22, then why isn't the temperature considered -22? Ray and Elizabeth Petelin are here to answer just that!
Hey Ray: Christmas Eve
How does Santa make his trips across the world in one night? KDKA's Ray Petelin thinks he has figured out the science behind it!
Hey Ray: Meteoroids, meteors, and meteorites
What is the difference between a meteoroid, a meteor, and a meteorite, and why do they burn up in the atmosphere?
Hey Ray: Graupel
This time of year, we hear the term "Graupel" but what is it and how does it form?
Hey Ray: The Science of Pop
Have you ever noticed how much science is packed into a single can of pop? Meteorologist Ray Petelin shows us some of what is going on with the fizzy beverage, along with a tip on how to keep a shaken can of pop from exploding!
Hey Ray: Climate vs. Weather
Many people get them confused but weather and climate are not the same. That's what Ray and Elizabeth Petelin are here to explain!
Hey Ray: Weather bombs
We're at the time of year when you start hearing the term "bomb cyclone." So, what does that mean? Ray and Elizabeth Petelin tell you all about it!
Hey Ray: The Thirsty Bird
You certainly have seen the toy that rocks back and forth known as the thirsty bird but as Ray and Elizabeth tell us - a lot of science goes into it!
Hey Ray: Do hurricanes have salty rain?
When major weather events like hurricanes happen, Ray Petelin gets plenty of questions. This morning, he's answering a popular one about hurricanes and rain.
Politics
More Politics
Lawmaker: All Pennsylvania schools should start after Labor Day
State Rep. Jose Giral is introducing a bill that would establish a post-Labor Day start for Pennsylvania schools.
Go 'Around The Table' with Stacy Smith
Stream Around The Table segments here on CBS News Pittsburgh.
Economic growth remains solid, shrugging off recession fears
U.S. economy grew at 2.9% rate in last three months of year despite pressure of high rates and fears of recession.
Meta to reinstate Trump on Facebook, Instagram
Earlier this month, Trump's presidential campaign asked Meta to reinstate him on the social media platform.
Pennsylvania could have phone-based driver's licenses by 2024
As in other states with digital IDs, Pennsylvania's version would be optional.
Consumer News
More Consumer News
Murrysville woman takes Walgreens to court for taxing toilet tissue
There are very few things we all need, and toilet paper is one of them. But did you ever look at your store receipt after buying it?
Murrysville woman takes Walgreens to court for taxing toilet tissue
There are very few things we all need, and toilet paper is one of them. But did you ever look at your store receipt after buying it? One Murrysville woman did and doesn't like what she saw; KDKA's Meghan Schiller reports.
Wage theft often goes unpunished despite state systems meant to combat it
If someone steals money from their employer, they could be guilty of a serious crime. But what if an employer takes money from their employee's paychecks? There's a good chance they'll get away with it, a CBS News investigation found.
Senators grill Ticketmaster after Taylor Swift debacle
Senators grilled Ticketmaster Tuesday, questioning whether the company's dominance in the ticketing industry led to its spectacular breakdown last year during a sale of Taylor Swift concert tickets.
Buyer Beware: Avoiding scams related to Girl Scout Cookie sales
It's Girl Scout Cookie season and the girls are doing all they can to support their adventures, but buyer beware, it seems like nothing good goes unscathed these days.
Pittsburgh Today Live
More Pittsburgh Today Live
Pittsburgh Today Live
Cooling down at the Ice Desk
We're helping our neighbors in need pay utility bills this winter with the Dollar Energy Fund's Cool Down for Warmth.
Dollar Energy Fund's Cool Down for Warmth
We're helping our neighbors in need pay utility bills this winter.
Daisy gets a figure skating lesson
PTL's Daisy Jade is checking out the Learn to Skate program at Printscape Arena at Southpointe with PTL video editor Paige!
Chef Bill Fuller: Beef Birria Tacos
We're back in the PTL Kitchen with our friend, big Burrito Group Chef Bill Fuller, who is back from a trip to California to work on Mad Mex's menu!
The importance of donating to the Dollar Energy Fund
PTL's Celina Pompeani-Mathison is outside at the Ice Desk with Dollar Energy Fund CEO Chad Quinn. Donating to the Cool Down for Warmth help your neighbors in need pay their utility bills.
KDKA Investigations
More KDKA Investigations
KDKA Investigates: Real estate corporations buying single-family homes to turn into rentals
Several national real estate corporations have been buying hundreds of single-family homes in the Pittsburgh region, turning them into rentals.
KDKA Investigates: Pandemic nearly doubled defendants waiting for trials in Allegheny County
They say justice delayed is justice denied.
4 years later, 420 Boulevard of the Allies is still not open for business
But $40 million and four years later, 420 Boulevard of the Allies is still not renovated or open for business.
KDKA Investigates: Business leaders trying to reverse course after 'Pittsburgh pause'
KDKA's Andy Sheehan spoke to business leaders in Pittsburgh on the city trying to bounce back after the "Pittsburgh pause."
Handcuffs in hallways: Heightened elementary school arrests prompt calls for better school policing plans
Due to the increase in violence in schools, heightened calls for more school security, and for districts to have their own police departments.
Health
More Health
FDA joins investigation into contaminated cough syrups that killed 300 kids
None of the contaminated products have been sold in the United States, the agency told CBS News.
Allegheny County Health Department reminds fish fry organizers to apply for their food permit
It won't be long until local churches, fire departments and other organizations start frying up some fish.
French biotech company opening US headquarters in Pittsburgh to begin clinical trials on diabetes medicine
A French biotech company developing a new type 2 diabetes drug is opening its American headquarters in Pittsburgh.
Allegheny County releases 5-year health plan
Allegheny County is launching a five-year plan to make the county a healthier place to live, learn, work and play.
FDA looking to simplify the use and updating of Covid-19 vaccines
The FDA wants to simplify the Covid-19 vaccine process to look more like what happens with the flu vaccine, according to documents posted online.
Sports
More Sports
Rooney says Steelers' strong 2nd half is something to 'be encouraged about'
Steelers president Art Rooney II said he was encouraged by the team's second half of the season.
RHP Jun-Seok Shim officially announced by Pittsburgh Pirates as latest signing
The Pittsburgh Pirates announced its latest signing, Jun-Seok Shim, the 10th-ranked international prospect.
Kenny Pickett visits patients at UPMC Children's Hospital
Some patients at Children's Hospital got a special visit on Wednesday from Steelers quarterback Kenny Pickett!
Penguins recall goaltender Dustin Tokarski from AHL Wilkes-Barre/Scranton
The move comes after Tristan Jarry was a surprise scratch on Tuesday night.
Kris Letang records 4 points in return, Penguins beat Panther 7-6 in overtime
Kris Letang was back in the lineup on Tuesday night in a wild back-and-forth game.
Business News
More Business News
Allegheny County Health Department reminds fish fry organizers to apply for their food permit
It won't be long until local churches, fire departments and other organizations start frying up some fish.
Wage Theft: Workers in Pennsylvania face uphill battle trying to get money they are owed
Every year, working people across the country are victims of wage theft to the tune of billions of dollars.
Google axes 12,000 jobs, layoffs spread across tech sector
Google is laying off 12,000 workers, or about 6% of its workforce, becoming the latest tech company to trim staff as the economic boom that the industry rode during the COVID-19 pandemic ebbs.
Party City files for Chapter 11 bankruptcy
Party City has filed for Chapter 11 bankruptcy protection after struggling with rising prices and a pullback in customer spending.
Restaurant owners feeling the pinch as egg prices continue to dramatically rise
Whether they're scrambled, poached, fried, or over easy, eggs are the foundation of breakfast, but lately restaurants and cooks have been looking for alternatives as egg prices have soared.
Entertainment
More Entertainment
John Mayer bringing 'Solo' acoustic tour to Pittsburgh
The songwriter announced his acoustic tour and PPG Paints Arena is one of the stops.
Weekend Planner: LEGOs and art collections
The weekend is almost here and there's plenty to do in the Burgh!
Pitaland listed in Yelp's Top 100 restaurants list for 2023
A Pittsburgh eatery known for its Mediterranean dishes has landed on a popular list of the top 100 restaurants to eat at in the United States this year.
First round of performers announced for 65th Annual Grammy Awards
Bad Bunny, Mary J. Blige, Brandi Carlile, Luke Combs, Steve Lacy, Lizzo, Kim Petras and Sam Smith will take the stage on "Music's Biggest Night."
Senators grill Ticketmaster after Taylor Swift debacle
Senators grilled Ticketmaster Tuesday, questioning whether the company's dominance in the ticketing industry led to its spectacular breakdown last year during a sale of Taylor Swift concert tickets.
Latest Videos
More Latest Videos
Latest Videos
KDKA-TV Nightly Forecast (1/26)
Get the latest weather updates with meteorologist Ray Petelin's forecast!
Ryan Shazier launches own line of medical marijuana
Ryan Shazier told KDKA-TV's Royce Jones all about it.
Leaders address questions about regional police force in 3 Beaver County boroughs
It comes after the three boroughs previously voted to dissolve their departments and merge.
Missing McKeesport man found dead in Pittsburgh
A missing McKeesport man was found shot to death this morning.
Attorney says his client still has nightmares of bridge collapse
Attorney Pete Giglione said his client's future is uncertain.
Latest Galleries
More Latest Galleries
Sights of the Season: The ups and downs of the 2022 Pittsburgh Steelers
The Steelers started out with a 2-6 record before going 7-2 down the stretch to finish 9-8, just missing out on making the playoffs.
Beloved Brackenridge Police Chief Justin McIntire laid to rest
Hundreds of law enforcement officials attended the funeral for Brackenridge Police Chief Justin McIntire at Mt. St. Peter Roman Catholic Church in New Kensington on Jan. 11, 2023.
PHOTOS: Steelers miss postseason, but beat Browns and finish season with 9-8 record
The Steelers have now won 19 straight regular season home games against Cleveland.
PHOTOS: Steelers come up short in AFC North rivalry loss to Baltimore
The Ravens came to town and went home with a 16-14 win over the Steelers.
69th Annual Free Care Fund Telethon
Since 1954, KDKA-TV has partnered with UPMC Children's Hospital of Pittsburgh to help support the hospital's Free Care Fund with our annual Free Care Fund Telethon during the holiday season. Here's a look behind the scenes of the 69th annual telethon!
