The surrounding air affects how snowflakes develop. In drier air, growth is slow and produces simple, compact or column-like designs that create dry, powdery snow. Humid air accelerates snowflake ...

Lake-effect snow happens when cold air moves across open water. As the cold air passes over the unfrozen and relatively warm ...

Another weekend snow threat and more cold are in the forecasts. But the big difference between last week and this one in the Philadelphia region is a matter of degrees — about 10 of them. A coastal ...

Meteorologist Robert Speta defines and tracks the dynamics behind what a lake/sea effect is and how it can be seen around the ...

A strong winter weather system has the potential to develop into a bomb cyclone off the East Coast later this weekend.

Ocean effect snow is a rare phenomenon in Florida. Similar to lake effect snow, it takes place when cold air moves over warm ...

Even with air temperatures below freezing, snow and ice can still melt. Here’s why warm sun, ground heat and humidity matter ...

A powerful winter storm will form off the East Coast this weekend amid a bout of deadly cold, but predicting its track, ...

Snow is made of tiny ice crystals that can transform into a variety of intricate symmetrical patterns forming a beautiful ...

Even a change of just 100 miles in the storm’s track could be the difference in an epic snowfall for major East Coast cities ...

As of Wednesday, forecast models agree a storm will form off the coast of the Carolinas early Saturday and then intensify ...

The chances for snow may be growing for this upcoming weekend. Our weather team is tracking a new blast of cold air that will ...