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Random Weather Terminology Selections

1. Tornado
A violently rotating column of air in contact with the ground and extending from the base of a thunderstorm. A condensation funnel does not need to reach to the ground for a tornado to be present; a debris cloud beneath a thunderstorm is all that is needed to confirm the presence of a tornado, even in the total absence of a condensation funnel.

2. Watch Box (or Box)
[Slang], a severe thunderstorm or tornado watch.

3. Isodrosotherm
A line connecting points of equal dew point temperature.

4. Pseudo-Cold Front
A boundary between a supercell's inflow region and the rear-flank downdraft (or RFD). It extends outward from the mesocyclone center, usually toward the south or southwest (but occasionally bows outward to the east or southeast in the case of an occluded mesocyclone), and is characterized by advancing of the downdraft air toward the inflow region. It is a particular form of gust front.

5. Dust Whirl
A rotating column of air rendered visible by dust. Similar to debris cloud.