such as severe thunderstorms and strong cold fronts. Maritime Tropical (mT) air is the most unstable type of air mass, primarily because of the warm, moist air it contains. This warm air rises ...

Thaw continues on Friday with highs forecast to be in the 30s & 40s. A strong cold front moves through Friday night followed ...

A strong cold front will bring “dangerously cold wind chills” -- as low as minus 30 degrees -- to Iowa this weekend.

There is just enough moisture in place for areas of rain to develop in this warm and humid air mass. Some moisture will ... the first out of two fronts will arrive. This first front won’t ...