Fronts
This is the symbol for a warm front
A what is a red line with red arrows.
This is why warm air rises over cool air.
What is due to warm air being less dense than cool air?
These are hazards of tornadoes and hurricanes.
What are thunderstorms, high winds, hail, and flooding.
Air moves from ____________ to ___________ pressure.
What is from high to low pressure?
The • symbol indicates this type of present weather.
What is rain?
This is the symbol for a cold front.
A blue line with blue bumps.
Fronts occur along the boundaries between these.
What are air masses?
These are the two ways to weaken a hurricane.
Move the hurricane over land, or move the hurricane over cooler water.
When isobars are spaced like this, it indicates high wind speeds.
What is when isobars are spaced close together?
This kind of weather information is found in the upper left of the station model.
What is the current temperature?
This front occurs when warm air moves into cooler air
What is a warm front?
This is the process where clouds form as air rises.
What is condensation?
This is the reason hurricanes change direction above 30 degrees N latitude.
The direction of the prevailing winds change.
In the N. Hemisphere, low pressure systems rotate in this way.
What is counter-clockwise?
Three whole feathers would indicate this wind speed.
What is 30 knots?
This front occurs when cool air moves into warm air.
What is a cold front?
These fronts move faster because they have more dense air.
What is a cold front?
In the N. Hemisphere, hurricanes rotate in this direction.
What is counter-clockwise?
Air moves in and up in these pressure systems.
What are low pressure systems?
This instrument measures wind speed.
What is an anemometer?
Air rises quickly when this front passes through, resulting in heavy precipitation close to the front.
What is a cold front.
Air rises slowly when this type of front passes through, resulting in slow and steady precipitation ahead and along the front.
What is a warm front?
This is the source of energy for all severe storms.
What is heat energy released during condensation?
Pressure systems usually move from __________ to _________ across the U.S.
What is from east to west?
This instrument measures air pressure.
What is a barometer?