Weather Terms

1. vane Mechanical device attached to an elevated structure.
3. A system of winds rotating inward to an area of low atmospheric pressure, with a counterclockwise (northern hemisphere) or clockwise (southern hemisphere) circulation; a depression.
6. Line drawn on a weather map that connect points having equal atmospheric pressure; also indicate the location of high - and low - pressure areas and can show wind speed.
8. A wispy, white cloud at high altitude.
10. Instrument used to measure atmospheric pressure.
12. Violent, whirling windstorm that crosses land in a narrow path and can result from wind shears inside a thunderhead.
15. Amount of water vapor held in the air.
17. A white, globular cloud.
19. A gauge for recording the speed.
20. Radar A radar tracking system using the Doppler effect to determine the location and velocity of a storm, clouds, precipitation, etc.
21. To predict a condition or event on the basis of observations.
22. Large, severe storm that forms over tropical oceans, has winds of at least 74 mph, loses power when it reaches land.
23. Measure of the amount of moisture held in the air compared with the amount it can hold at a given temperature; can range from 0 percent to 100 percent.
27. Studies weather and uses information from Doppler radar, weather satellites, computers and other instruments to make weather maps and provide forecasts.
28. A dark, gray cloud bearing rain.

2. Line drawn on a weather map that connects points having equal temperature.
4. A large, dark, low altitude cloud.
5. Boundary between two air masses with different temperatures, density, or moisture; can be cold, warm, occluded, or stationary.
7. Large body of air that has the same characteristics of temperature and moisture content as the part of Earth's surface over which it formed.
9. State of the atmosphere at a specific time and place, determined by factors including air pressure, amount of moisture in the air, temperature, wind, and precipitation.
11. A weather system with high atmospheric pressure at its center around which air slowly circulates in a clockwise (northern hemisphere) or counterclockwise (southern hemisphere) direction; calm, fine weather.
13. The front end or advancing edge of an air mass that will soon replace the air mass that's over a specific region
14. Truncated cloth cone used as a visual indicator of wind direction.
16. To treat or charge something to the point where no more can be absorbed, dissolved, or retained.
18. Water falling from clouds - including rain, snow, sleet, and hail - whose form is determined by air temperature.
24. Temperature at which air is saturated and condensation forms.
25. A stratus cloud that forms when air is cooled to its dew point near the ground.
26. Winter storm that lasts at least three hours with poor visibility (less than 1/4 mile) and wind speeds of at least 35 mph.