Weather Patterns
A large body of circulating air with low pressure at its center and higher pressure outside of the system.
Low-pressure system
What are the atmospheric conditions, along with short-term changes, of a certain place at a certain time?
The weather
What is a front?
A boundary between two air masses
Weather measurements made on Earth's surface.
Surface report
How fast does the wind need to blowing for the storm to be considered a hurricane?
at least 119 km/h
What measuring instrument is used to measure wind speed?
Anemometer
What is a cold front?
When colder air masses move towards a warmer air mass
What is an isobar?
Lines that connect all places on a map where pressure has the same value.
Out of the five air masses discussed in the book, which one describes the climate of Thailand the most?
Maritime Tropical Air Masses
What is the amount of water vapor present in the air compared to the maximum amount of water vapor the air can hold.
Relative humidity
What is a stationary front?
What is the purpose of a doppler radar?
Calculates wind speeds
What dangerous medical emergency results from being outside during a blizzard?
Hypothermia
This type of precipitation starts as snow, then melts as it falls through a layer of warm air and refreezes when it passes through a layer of freezing air.
Sleet
What is an occluded front?
When a fast-moving cold front catches up with a slow-moving warm front
What is the symbol on a map for a 'stationary front'?
A line that combines the downward blue triangle, and the upward red half circle.
How much larger is a hurricane compared to a tornado?
more than 150 thousand times larger
How is weather related to the water cycle?
The cycling of liquid and water vapor is how our climate and atmosphere is regulated
Why are air mass boundaries known as fronts?
Based on the military term 'front' - meaning the closest line of the boundary closest to the conflict
What type of weather happens when the barometric pressure starts to drop?
A large storm, like a large hurricane, is coming