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