In talking about this oppressive heat wave, I have mentioned on several occasions that the temperature is measured in the shade and if you are out working in the direct sunlight it will seem like it ...

It seems simple enough to hold a thermometer out in the sun in order to get the temperature “in the sun.” But this idea is all wrong. Air isn’t heated up very much by sunlight. The rays pass right ...

As many contractors attest, a supply air plenum is a sheet metal box attached to a furnace or air handler’s outlet and is used as a central manifold connector for other ductwork. As the air blows from ...

Have you ever been scared to add outside air to a residential system’s return air duct for ventilation purposes? If you’re like me, I worried the outside air would affect the return temperature too ...

KANSAS CITY, Mo. — When you're watching your favorite on-air meteorologist talking about the heat, they usually show you a graphic of the air temperatures and/or the heat index value. Those are pretty ...

As recent fervor for storm chasing and the national pastime of doubting meteorological predictions demonstrates, weather can be a tricky beast to pin down. To truly wrangle it and capture its data, ...

Monitoring atmospheric temperature at high altitudes is essential for meteorological forecasting and climate change research. Traditional electronic thermometers can be unreliable due to the effects ...

Whenever it gets really hot anywhere in the United States, we search for ways to convey how darn uncomfortable it is outside. Saying “it’s 110°F in the shade!” is one of the go-to phrases to ...

During the hot, humid summer months, meteorologists often discuss the heat index instead of the actual air temperature. But how is the heat index calculated, and why is it more important than the air ...

As airlines start making face masks mandatory, one is going a step further, saying it is going to require temperature checks of passengers before they are allowed to fly. Air Canada said Monday that ...