Weather Crossword

1. The formation of thin ice crystals on the ground or other surfaces in the form of scales, needles, feathers, or fans. Frost develops under conditions similar to dew, except the temperatures are colder.
3. The historical record of average daily and seasonal weather events.
5. Precipitation of small balls or other pieces of ice (hailstones) falling separately or frozen together in irregular lumps. (Typically associated with thunderstorms and surface temperatures above freezing).
7. A thunderstorm with winds of 58 mph or more or hail 3/4-inch diameter or larger. Structural wind damage may imply the occurrence of a severe thunderstorm.
9. liquid rain falling and freezing on contact with cold objects creates ice build-ups of 1/4th inch or more that can cause severe damage.
10. The force exerted by the interaction of the atmosphere and gravity. Also known as atmospheric pressure.
11. Rain Clouds or rain droplets contain pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
12. standard scale used to measure temperature in the United States; in which the freezing point of water is thirty-two degrees and the boiling point is two hundred and twelve degrees.
14. a large mass of rapidly moving snow down a steep mountain slope.

2. A wave of low pressure that does not have a complete circulation around it; also called a short wave trough.
4. Solid grains of ice that form from the freezing of raindrops or the refreezing of melted snowflakes. These small, transparent ice pellets usually bounce when they hit a hard surface.
6. Liquid or solid molecules that fall from the atmosphere to the ground.
8. A severe tropical cyclone with wind speeds in excess of 74 mph (64 knots).
13. A storm lasting about 3 hours or longer with sustained winds 35 mph or greater with frequent gusts to 35 mph or greater; and considerable falling and/or blowing snow frequently reducing visibilities to less than 1/4 mile.
15. Snow In the Inland Northwest, mountains above 3000 feet - 8 to 12 inches in 12 hours or 12-18 inches or more in 24 hours. For the valleys and Basin below 3000 feet - 4 inches in 12 hours and 6 inches in 24 hours.