Causes of Weather
The root word means sea, usually involving something over the water
What is maritime?
Forms under this pressure system and have winds exceeding 74 MPH
Hurricane
A moving warm air mass collides with a slowly moving cold air mass and the warm air moves over the cold air.
What is a warm front?
The word means over land
What is continental?
When a rapidly moving cold air mass runs into a slowly moving warm air mass; the denser cold air slides under the lighter warm air.
What is a cold front?
Usually more frequent in the warmer seasons of Spring and Summer, forming in low pressure systems, and over land.
Tornado
When cold and warm air masses meet, but neither one has enough force to move the other.
What is a stationary front?
This air mass comes from either the north or south poles.
What is polar?
A region where the atmospheric pressure at the surface of the planet is greater than its surrounding environment
High Pressure
Warm, moist air over the ocean
What is the energy source for a hurricane?
Where precipitation falls outside of a funnel cloud?
What is downdraft?
of, being, or characteristic of a region or climate that is frost-free with temperatures high enough to support year-round plant growth given sufficient moisture. This means coming from the equator
What is Tropical?
In surface low-pressure systems, the air does this
What is rise
Higher precipitation with cloudy, overcast skies, indicating incoming unstable weather.
What is low pressure?
The result of the weight of a column of air pushing down on an area.
What is an air pressure?
When warm air slowly covers over cold air which produces steady light rain and pleasant temperatures.
What is a warm front?
Global wind systems flow on either side of the equator in what direction?
Counterclockwise in Northern hemisphere and clockwise in the Southern hemisphere
storm --- usually, but not necessarily, thunderstorm --- that contain updrafts that rotate about a vertical axis
What is a supercell?