Matching Pairs topic 7 weather part 4 prediction and probabilityOnline version match the term to the defintion by Susan Brown 1 movement of air masses along the polar fronts result in the formation of low pressure storms associated with thunderstorms, tornados and ahil 2 storm with winds of at lease 35 mph with lots of falling or blowing snow 3 violent or severe disturbance of the atmosphere that usually creates dangerous, destructive or unpleasant conditions on Earth's surface 4 heavy rainstorms accompanied by thunder and lightening 5 large summer and fall storms that form over tropical waters with sustained winds of at least 74 miles per hour 6 most violent of all storms; small area of impact for a relatively short time; rotating, very low pressure funnel that hangs from the clouds blizzard tornado storm cyclonic storms thunderstorms hurricane 1 as air temperature gets closer to the dew point 2 reflects electromagnetic waves to give information about precipitation and clouds 3 as temperature increases 4 greater the air pressure gradient 5 rapidly falling air pressure indicates 6 visual and infrared images from space that show location and size of storms 7 symbol that represents a site's weather variables for a specific time of day 8 chance satellite images radar chance of precipitation increases higher the wind speeds storm approaching station model probability air pressure decreases 1 2 3 4 5 southeast wind between 15 and 20 mph; mostly cloudy northwest wind, completely cloudy northeast wind between 20-25 mph southeast wind with a barometric pressure of 1000.2 southwest wind, mostly cloudy