Pittsburgh Weather: First Alert Weather Day issued for Monday night
Monday night is a First Alert Weather Night.
Hey Ray: Pi Day probability
Did you know that Pi can be used to make a prediction?
Hey Ray: The sun compass
Let's do some "survival science" like how to find your direction!
Thousands without power after wind, rain move through
We are still operating under First Alert, as the ice storm warning continues in Garett County, Maryland, and the high wind warnings remain in place.
Hey Ray: Lenz's Law
Even though certain metals may not be magnetic, they can still interact with magnets!
Hey Ray: The Heat Budget
The weather doesn't always change right along with the seasons and a viewer question is a motivation for this week's post!
Pittsburgh hits 70 degrees, breaking highest temperature record for Feb. 9
Today was the warmest Feb. 9 on record. In Pittsburgh, the temperature hit 70 degrees in the afternoon.
Hey Ray: The Rising Chain Experiment
In physics, sometimes, the reaction you get is not the reaction you expected. Meteorologist Ray Petelin explains with a cool experiment.
Hey Ray: Cross-Quarter Days and Groundhog Day
Ray Petelin is here to tell you all about "cross-quarter days" and Groundhog Day!
First Alert Weather: Winter Weather Advisory issued for parts of Western Pa. ahead of Wednesday storm
It's going to be a sleep-in-and-you'll-miss-it event with three-to-five inches of snow in some parts of our area.
Pittsburgh Weather: Winter storm system to bring snow and rain Wednesday
A winter storm system is set to impact the region by daybreak Wednesday.
Hey Ray: Frost wedging
Potholes make your commute this time of year a brought one, but what causes them?
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!
Pittsburgh Weather: A partly cloudy Tuesday with hints of sunshine
Finally, the sunshine is back today and tomorrow! Enjoy it while it lasts.