Ray Petelin

Pittsburgh

Meteorologist at KDKA-TV (Pittsburgh, PA)

Dad, Husband, Meteorologist (see me on @KDKA 📺), KD Quiz host, Science Communicator & Beer Brewer. Tweets are my own! ☉⛅☇

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Articles

Paper popper noise makers | Hey Ray

2 weeks ago | cbsnews.com | Ray Petelin

You may have seen or heard a paper popper before. A series of folds and a quick whip of the paper can lead to a loud pop! I guarantee this has led to many detentions for those who know the secret to folding a paper popper. These paper poppers are a bit scientific, though. Let's start with how to make it. First, fold a piece of paper longways. Open it up and fold one side in half again. Fold that in half one more time.
Pi can be used to measure many different things including hat size | Hey Ray

1 month ago | cbsnews.com | Ray Petelin

Hey Ray: Using Pi to measure hat size There is Pi all around us, in ways you may not have seen before. If you remember from school, Pi is the ratio of a circle's circumference to its diameter. It is a number that is usually written as 3.14. Around Pi Day, or March 14, you know 3-1-4. We have shown you how Pi works with pizza, the best sized pizza to buy, and other ways Pi can show up in the past.
"Blood moon" lunar eclipse lights up western Pennsylvania skies

1 month ago | cbsnews.com | Mike Darnay |Chilekasi Adele |Ray Petelin

A total "blood moon" lunar eclipse peaked overnight and lit up skies across the Pittsburgh area and throughout western Pennsylvania. The total eclipse began Friday at 2:26 a.m. and lasted for nearly an hour.
Here's how to watch the "blood moon" total lunar eclipse in Pittsburgh

1 month ago | cbsnews.com | Ray Petelin

Early Friday morning, the Pittsburgh region will be treated to a total lunar eclipse, and the weather looks like it will be cooperative for us to see it. When will the lunar eclipse happen? The partial eclipse begins at 1:09 a.m. Friday. This is when the moon starts to move into Earth's shadow. The moon becomes completely covered by Earth's shadow at 2:26 a.m. Friday and stays covered for a little more than an hour. The total eclipse ends at 3:31 a.m. Friday.
Both the Allegheny and Monongahela Rivers can freeze but one is more likely | Hey Ray

1 month ago | cbsnews.com | Ray Petelin

Hey Ray: Does the Allegheny River freeze rather than the Monongahela River? We love viewer questions, and today I am going to answer one I get asked a lot. A viewer named Lynn asked, "Hey Ray! Why does it seem like the Allegheny River gets ice on it and the Mon doesn't, or is this just my imagination?"While both the Monongahela River and Allegheny Rivers both can freeze in the winter, the Allegheny River will be the river that freezes first in Pittsburgh.
Debating which side of aluminum foil to use | Hey Ray

1 month ago | cbsnews.com | Ray Petelin

If you use aluminum foil in the kitchen, you may have noticed that one side of aluminum foil is shiny and the other side is dull. That leads to questions like "is one side of the foil better than the other"? The answer is it doesn't matter. According to the , it does not make any difference which side of the foil contacts the food. The mostly aluminum, molten alloy is rolled thin and solidified between large, water-cooled chill rollers.
The sun can cause you to sneeze if you have this condition | Hey Ray

2 months ago | cbsnews.com | Ray Petelin

Hey Ray: How the sun can cause you to sneeze The sun does more than brighten up the sky. It is the cause of all of our weather, by driving the water cycle. The sun sometimes causes the body to react in weird ways, too. It brightens our moods. It also can cause you to sneeze! You heard that right! The Sun can trigger sneezes! This is a phenomenon known as Photic Sneeze Reflex. Another name is Autosomal dominant Compelling Helio-Ophthalmic Outburst syndrome.
Using a money vortex to collect coins | Hey Ray

2 months ago | cbsnews.com | Ray Petelin

Hey Ray: Collecting coins using a money vortex PITTSBURGH (KDKA) - You may have seen what is called a money vortex before. These are a type of bank that have a fun way to deposit money. You drop in a coin, and it spins down the funnel, picking up speed and tilting more and more as it moves lower in the funnel. You will notice that the coins do not tip over, and that is because the physics behind how this works are pretty cool. First, the money has to be rolling.
Ice Jams can cause blockages over rivers | Hey Ray

2 months ago | cbsnews.com | Ray Petelin

PITTSBURGH (KDKA) - Ice on the rivers is certainly a sight to see. When the temperatures get cold enough, for long enough, our landscape seems to change as our normally flowing rivers take on a solid appearance. We all know, though, that the ice will only stay as long as the temperatures stay cold enough. Once the temperatures start warming, the ice starts to melt. That melt is not very uniform, and this results in chunks of ice that break free, and are sent floating down the rivers.
How Sun dogs appear in the sky | Hey Ray

Jan 18, 2025 | cbsnews.com | Ray Petelin

Hey Ray: How Sun Dogs form in the sky PITTSBURGH (KDKA) - Dogs are great. Some consider them man's best friend, and who am I to argue? Not all dogs are created equal though. The topic today is more about a weather type of dog that doesn't look like a dog at all... Sun dogs. You may have noticed these as a tiny rainbow spot in the sky. I get questions about these all the time. For Sun dogs to appear, you need sunshine and ice crystals suspended in the atmosphere.