Hey Ray! What Is Upsloping?
I got asked, Hey Ray...Explain upsloping? It is a word meteorologists in the area use a lot during winter because winter is the season where upsloping's impacts are most noticeable.
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I got asked, Hey Ray...Explain upsloping? It is a word meteorologists in the area use a lot during winter because winter is the season where upsloping's impacts are most noticeable.
It is pretty basic knowledge that the Sun is much bigger than the Moon. Meteorologist Ray Petelin explains that they appear the same size in the sky because of some cool, mathematical coincidences.
Did you know your shadow is longer in the winter than in the summer? Meteorologist Ray Petelin explains why.
Light lets us see things, but did you know light can make things disappear, too? Meteorologist Ray Petelin has a simple experiment that shows this in action.
Pittsburgh has seen a lot of different weather on Christmas Day. KDKA Meteorologist Ray Petelin and his daughter Elizabeth take a look back at some of the notable weather to hit Pittsburgh on Christmas Day.
The reason some things float, and others don't is explained by the Archimedes Principle. This week, Meteorologist Ray Petelin shows us how small changes in an object can make a big difference in how buoyant that object is.
Meteorologst Ray Petelin finds out how to spot black ice, how to more safely drive on it, and what to do if you start to slide.
Candles are neat, calming to some and full of science.
Train conductors and orchestra conductors are great, but we are going to learn more about heat conductors.
Math is a great prediction tool. You can even used grids disguised as card tricks to predict where a card will be. This week, Meteorologist Ray Petelin shows us what he calls a "Raymix" of a math-based card magic trick he showed us in one of the first Hey Ray segments.
After tornadoes hit our area, I get some very good questions, and hear some untrue myths. One of them is the misconception that tornadoes don't form near mountains, valleys or lakes.
Water and electricity should never mix. I think everyone knows that. In this experiment, though, we are going to do an experiment with static electricity and water. All we need is a balloon, a gentle stream of water, and some hair.
Many people love the fall because of the colors foliage becomes before they drop their leaves.
When you hear the word halo, you may think of an angel. The topic here is halos, but these ones are in the sky, and something I get asked about a lot.
I have a new problem this week. I need to get a round coaster through a square hole without ripping the paper.
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.
A viewer asks, if it's raining outside, but the humidity gauge only reads 74%, shouldn't it be 100%? Ray Petelin has the answer in a new Hey Ray!
The Moon is spherical like Earth, so why do we only see one side of it? Meteorologist Ray Petelin has the answer.
Heavy winds and windstorms have been in the headlines a lot lately, which has plenty of Pittsburghers asking, "Is it windier today than it ever has been in Pittsburgh?" Ray Petelin explains!
Meteorologist Ray Petelin has a weird experiment today where he shows us how to illuminate fluorescent light bulbs without connecting them to a light fixture!
Science can often surprise you! Meteorologist Ray Petelin has a cool inertia experiment where the result may be the opposite of what you think!
It's common to see icicles hanging from roofs or awnings, but can they form sideways? The Barton Family saw just that, and Ray Petelin explains how it may have happened!
When rivers, lakes, and ponds freeze over, it's natural to want to go play on them, but checking them for safety is important. Ray Petelin explains what you need to do to make sure you don't fall through.
The FBI Pittsburgh is at the center of Summer Heat 2.0, a massive operation targeting violent crime, drug trafficking and illegal firearms.
Recently, a group of Vietnam veterans, including one from Pittsburgh, reunited again, visiting a fellow soldier now battling health issues.
The Pirates spent the afternoon at Pittsburgh Arsenal, meeting students and staff and distributing boxes of food.
Eight men are charged after a man incarcerated in the Allegheny County Jail on a homicide charge was killed in an attack inside his cell.
The Franklin Regional School District is under fire after an antisemitic quote was printed in the yearbook.
Commerce Secretary Howard Lutnic talked about U.S. Steel and "golden share."
A Pennsylvania state lawmaker is proposing giving taxpayers $250 to celebrate America's birthday.
Two men wounded in a shooting during then-presidential candidate Donald Trump's 2024 rally at the Butler Farm Show grounds are suing the United States.
A fractured majority of Republican justices sided with a sweeping challenge brought by local and county officials against Oak Run Solar.
The move by Republican Gov. Mike DeWine comes as tax breaks for energy-hungry AI data centers are increasingly playing a role in state budgets.
A Pennsylvania state lawmaker is proposing giving taxpayers $250 to celebrate America's birthday.
Buc-ee's plans to open another store in Ohio, bringing its gas station, convenience store and smiling buck-toothed beaver mascot closer to the Pennsylvania stateline.
A James Beard Award-nominated bar is coming back to Pittsburgh.
What if what's sitting in your jewelry drawer is worth more than you think?
The price of electricity in Pennsylvania is going up next month.
Melanie from 100.7 Star joins us as she does every Monday to talk Morgan Wallen's concert cancellation in Pittsburgh, celebrity date nights, and Dua Lipa saying "I do" twice!
Jeff Koontz is preparing for one of the toughest endurance races on the planet, and he's raising money for the KDKA-TV Turkey Fund with every mile!
Your local library is easier than hitting up your local Apple Store. Daisy Jade visits the Western Allegheny Community Library for a look at gadgets you can, literally, check out!
Terina Hicks from Cobbler World joins Heather and David in the PTL Kitchen to show us how you can enjoy all the chocolatey, marshmallowy goodness without the sticky mess!
We've got an immersive experience to showcase the Bridal Luncheon and Designer Showcase happening in Pittsburgh with Randy Fenoli from Say Yes to the Dress. It includes a full tasting event with pastry chef David Lowry and Amber Peck!
Many families with children attending schools in the Catholic Diocese of Pittsburgh said they are trying to figure out the logic behind their upcoming tuition bills.
Pittsburgh's fire boat has been on the water for nearly a decade, but it hasn't seen much action.
A lawsuit has been filed over the smell neighbors say is coming from the Sherwin-Williams plant in Rochester.
Naida Reed contacted KDKA Investigates after she said Pittsburgh Water failed to follow through on what crews allegedly promised.
What if what's sitting in your jewelry drawer is worth more than you think?
Allegheny County health officials said babies who have died from sudden unexpected infant death have more than doubled since 2000.
Lone star ticks have been found in Franklin and Erie counties in Pennsylvania.
Pittsburgh, with its natural beauty and parks, can be a great place for people to put the phones down and enjoy life.
Doctors say it looks like it will be a bad season for tick-borne diseases.
Temperatures could reach into the 90s this week in Pittsburgh, and that impacts everything, including your sleep.
Neal Shipley earned low amateur honors at the U.S. Open at Pinehurst in 2024 and will now be teeing it up at Shinnecock Hills as a professional later this month.
Western Pennsylvania has historically been a hotbed for producing talent that succeeds in the NFL.
Michael Harris II hit a three-run double in the seventh inning, and the Atlanta Braves beat the Pirates 3-2 to complete a three-game sweep.
The Atlanta Braves recovered after losing an early three-run lead to beat the Pittsburgh Pirates 6-3 and clinch another series win.
Golden Tempo made Cherie DeVaux the first woman to train a Kentucky Derby winner and the second woman to train a Belmont Stakes winner.
Pittsburgh City Council has approved new legislation that would put new restrictions on vape shops.
Buc-ee's plans to open another store in Ohio, bringing its gas station, convenience store and smiling buck-toothed beaver mascot closer to the Pennsylvania stateline.
A James Beard Award-nominated bar is coming back to Pittsburgh.
A fractured majority of Republican justices sided with a sweeping challenge brought by local and county officials against Oak Run Solar.
The move by Republican Gov. Mike DeWine comes as tax breaks for energy-hungry AI data centers are increasingly playing a role in state budgets.
The country group Little Big Town will perform at Citizens Live at the Wylie in October.
The second of two shows at Acrisure Stadium, originally scheduled for Saturday night, has been canceled, according to Wallen.
Ahead of a packed weekend here in Pittsburgh, many are taking to the three rivers ahead of a big country show.
Now that Arts Landing is open, the Three Rivers Arts Festival will have a permanent home.
The trailer teases a high-stakes Robin Hood-esque bank heist from a star-studded crew.
The FBI Pittsburgh is at the center of Summer Heat 2.0, a massive operation targeting violent crime, drug trafficking and illegal firearms. Meghan Schiller reports.
Recently, a group of Vietnam veterans, including one from Pittsburgh, reunited again, visiting a fellow soldier now battling health issues. KDKA-TV's Ross Guidotti reports.
Charlie Batch will serve as the official host for the Pittsburgh stop of the Commonwealth Concert Series.
Pittsburgh Pirates pitcher Paul Skenes surprised a little league baseball team.
Stay on top of the weather in the Pittsburgh area with First Alert Meteorologist Ray Petelin's forecast.
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.
The 44th annual KDKA-TV Turkey Fund will help our neighbors in need have a nice meal for Thanksgiving.
