Hey Ray! Using Pi to Properly Buy Pizza
Remember that one time in math class when you said, "I am never going to use this in real life"?
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Remember that one time in math class when you said, "I am never going to use this in real life"?
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.
Have you ever noticed that thunder sounds louder at night? Ray Petelin explains why in a new Hey Ray!
With summer heading to its conclusion, hummingbirds are about to migrate south. Ray Petelin shows you how you can prepare to say goodbye to your friends in a new Hey Ray.
It used to be said that video games were bad for you, but they have become the building blocks of some pretty cool things, including KDKA-TV's new studio! Ray Petelin explains in a new Hey Ray!
A viewer noticed a "hole" in the clouds in the sky, and in this edition of Hey Ray, Ray Petelin explains how these form!
When it's hot, you're always looking for a way to cool off, but did you know you can give your heat to other objects? Ray Petelin explains in a new Hey Ray!
Security cameras can pick up some interesting things, and there is one thing that shows up on cameras that Meteorologist Ray Petelin gets asked about a lot, and today he has the answer.
Summer officially begins on Sunday morning in Pittsburgh, and Ray Petelin is here to break down the "summer stats" for you!
You may know that Ray Petelin considers himself a "Bird Nerd." Today, he is going to show you how to get hummingbirds to come over for a close-up visit!
Coffee is a morning staple for many, and one viewer's coffee comes with a concert built in. Meteorologist Ray Petelin explains why her coffee starts sounding weird!
Sometimes, you look up to the sky, and you see something weird. Other times you look down from up in the sky and you see something extremely weird! That happened to Edna. Pilot's Glory, Glory of the Pilot, or Pilot's Halo — whatever you want to call it, Ray Petelin has an explanation.
Jonathan Kramer, 21, was arrested and accused of planning an attack against the American people.
A former NFL player who is now a youth football coach in Beaver County is accused of assaulting his own 6-year-old child during a game.
Waters have receded in the city of Washington after Saturday's heavy rain, but the cleanup is still underway in flood-prone areas.
Country music star Luke Bryan will bring his Farm Tour to 1846 Farms in Unity Township near Latrobe on Thursday.
Across the region, communities are starting to look for road salt, and the price they are finding is coming with some sticker shock.
Sen. John Fetterman's surprise video introducing Sen. Dave McCormick at the Republican Party's midterm convention sparked a strong reaction from Democrats. KDKA political analyst Jon Delano breaks it down.
Sen. John Fetterman's surprise video at the Republican Party's midterm convention sparked a strong reaction from Democrats.
Democratic Sen. John Fetterman appeared in a surprise video at the Republican Party's midterm convention on Wednesday, as he becomes increasingly isolated from his own party.
A Pennsylvania man is facing charges after police said he called Gov. Josh Shapiro's office and threatened to "destroy the Commonwealth."
The Trump administration moved Tuesday to ban imports of Canadian motorcycles, some dairy products and most types of alcohol starting later this month, intensifying the trade war between the two countries.
The wait for medical imaging keeps getting longer, leaving some people fraught with anxiety.
It seems like each week we get a new story or warning about a scam over the phone or on the internet. Here's how you can avoid them.
With proposed 50% tariffs on the table, the cost of new and used cars could increase by thousands in the near future.
A new report tries to calculate how much Pennsylvanians need to earn to live what's considered a comfortable lifestyle.
The store is expected to open sometime next year.
Judge Judy officially passes the gavel to her son, Adam, to launch an exciting new era of court television called "Adam's Law."
By supporting United Way's 211 line, Duquesne Light Company helps ensure customers can quickly connect with those resources and receive the help they need from organizations that know their communities best.
From delicious dining and local drinks to unique boutiques and fascinating history, PTL takes a trip down Zelienople's Main Street to discover what makes this town so special.
David and Heather guess the value of three items chosen from the PTL mailbox.
From hand-cut steaks to scratch-made cocktails, an award-winning restaurant in Greensburg is making an impact in the community. Daisy found out how they're serving up more than just good food.
The wait for medical imaging keeps getting longer, leaving some people fraught with anxiety.
The Steel City Youth Football League announced disciplinary action following video that captured an on-field brawl.
Misdemeanor and summary charges have been filed against the coaches involved in a youth football brawl in Pittsburgh.
Police departments all around the country say surveillance technologies like cameras, drones, and license plate readers have proved invaluable in tracking and arresting violent criminals.
Video shows youth football coaches from Carlynton and Keystone Oaks fighting on the field during a game over the weekend.
An 18-year-old from Mifflin County has died from measles-related complications, Pennsylvania health officials said.
The wait for medical imaging keeps getting longer, leaving some people fraught with anxiety.
A 40-year-old woman died on Saturday from complications associated with measles, the coroner reported.
Four vaccinated people in Pennsylvania have contracted measles, health officials say.
A Pittsburgh-area hospital is seeing a concerning uptick in withdrawals from what many describe as "gas station heroin."
West Virginia assistant football coach Noel Devine has been arrested on a felony strangulation charge.
During his 25 years as head coach, Joe David led Mt. Lebanon to three WPIAL titles
Saturday's game was delayed for more than one hour because of severe storms in the area.
Sunday brought with it a big first win for the Pittsburgh Steelers, as football is back in the Steel City.
The Pirates (75-75) closed out a 4-2 stay in Chicago. They swept the White Sox before dropping two of three against the Cubs.
Many small businesses are still feeling the impact of last week's severe weather.
Pittsburgh leaders and their partners are making a concerted effort to revitalize a North Side business district.
A federally funded Ohio manufacturing program faces potential shutdown after a new audit by the U.S. Department of Commerce's Office of Inspector General.
Gas station giant Buc-ee's has sparked a backlash in Ohio over one of its frequent trademark infringement lawsuits.
The international fashion retailer Zara will open a location in Ross Park Mall in 2028, as the mall continues to thrive.
"The Pitt" won the Emmy award for outstanding drama series for a second year in a row.
Kenny Chesney will be joined on the tour by Eric Church, Sheryl Crow and Reylan James.
Local legend Donnie Iris will headline an early show at Pittsburgh's newest music venue, Citizens Live at The Wylie.
Dolly Parton died in Nashville on Aug. 25 at the age of 80 — a shock to fans around the world who weren't aware of her illness.
A show coming to The Palace Theatre in Greensburg looks to pay tribute to Dolly Parton.
The Pirates held their annual day of service in honor of Roberto Clemente Day across the MLB. KDKA's Josh Taylor reports.
The leaders of multiple AI companies are calling for a global slowdown and government regulation and oversight of AI development because of fears that it could literally destroy humanity. Kristine Sorensen spoke with a Carnegie Mellon professor who specializes in AI security to get more understanding of the real risks.
Stay on top of the weather in the Pittsburgh area with First Alert Meteorologist Mary Ours' forecast.
Waters have receded in the city of Washington after Saturday's heavy rain, but the cleanup is still underway in flood-prone areas near Jefferson and Wylie, with business owners hoping for some long-term solutions. KDKA's Lauren Linder reports.
Country music star Luke Bryan will bring his Farm Tour to 1846 Farms in Unity Township near Latrobe on Thursday. KDKA's Chris DeRose reports.
Saturday's game was delayed for more than one hour because of severe storms in the area.
Mike Tomlin stepped down as head coach of the Pittsburgh Steelers after 19 seasons with the team.
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.
