PORTLAND, Ore. (KOIN) – Let’s talk about air masses! Wait, wait, wait: what exactly is an air mass? Think about a large body of air with similar temperature and moisture. These air masses typically ...

If you hear a meteorologist, say stormy weather is expected, we didn't just pull it out of thin air. Instead, we looked at weather models predicting the future. Weather forecasting can be difficult ...

Temperatures are heading down in Tennessee and much of the South. Are we in for a polar vortex? And just what is that? "The atmosphere is making up for lost time in terms of wintry conditions and snow ...

(NEWS10) – On this week’s Weather 101 we will discuss air masses, where they come from, what they are and how they affect our weather here in the northeast. A few things about air masses, there are ...

LOUISVILLE, Ky. — When we are forecasting, we are looking at the movement of different air masses, but what is an air mass and the different types of air masses? An air mass is large body of air with ...

LANSING, Mich. (WLNS) — You probably are not a fan of the roller coaster temperatures over the past few weeks and might equate it being “January in Michigan” but there is actually a scientific name ...

A “polar air mass” could last for days in the Charlotte area, mountains and Upstate South Carolina, National Weather Service meteorologists said on Friday. A “hard freeze” from a “polar air mass” is ...

SPOKANE, Wash. — Winter in Spokane this season hasn't been terribly cold. With the lowest temperature only been 15 degrees this season, it's been extremely manageable. And compared to the winter's ...

SAN FRANCISCO (KRON) — A polar air mass is forecast to blow into the San Francisco Bay Area on Thursday and possibly dust local mountain peaks with snow. Tuesday’s sunny and warm weather will ...

If you hear a meteorologist, say stormy weather is expected, we didn't just pull it out of thin air. Instead, we looked at weather models predicting the future. Weather forecasting can be difficult ...

A “hard freeze” from a “polar air mass” descended on Charlotte, the North Carolina mountains and Upstate South Carolina overnight and could last for days, National Weather Service meteorologists said ...