These three conditions must exist for a thunderstorm to develop.
What are a source of moisture, lifting of an air mass, and an unstable atmosphere?
100
This is a severe thunderstorms that has developed into self-sustaining, extremely powerful storm.
What is a supercell?
100
This is the only ocean in which favorable conditions for hurricane development do not exist.
What is the South Atlantic?
100
These types of areas are most susceptible to flooding.
What are low-lying areas?
100
Temperatures between 105-120F fall into this zone.
What is the danger zone/range?
200
These three things limit thunderstorm growth.
What are a source of moisture, lifting of an air mass, and an unstable atmosphere?
200
This type of strong wind is concentrated in a local area.
What is a down burst?
200
These are the two conditions hurricanes require to form.
What are an abundant supply of warm ocean water and a mechanism to lift warm air and keep it rising?
200
This is an extended period of well-below-average rainfall.
What is a drought?
200
Hurricane Sandy was classified as this category of hurricane according to the Saffir-Simpson Hurricane Wind Scale.
What is category 3?
300
These are the four types of thunderstorms.
What are air-mass, mountain, sea-breeze, and frontal thunderstorms?
300
This ranks tornadoes according to their destruction and estimated wind speed.
What is the Enhanced Fujita Tornado Damage Scale?
300
These are the three stages of a hurricane.
What are the formative, mature, and dissipation stages?
300
These are volunteers who work with the National Weather Service to give a clear picture of actual weather patterns happening on the ground.
What are storm spotters?
400
These are the three stages of thunderstorm development.
What are cumulus, mature, and dissipation stages?
400
This is the most likely time for tornado formation.
What is in the spring during the late afternoon and evening.
400
This is the part of the hurricane where the strongest winds form.
What is the eyewall?
400
A phenomena where cold air is magnified by wind is measured by this.
What is the windchill index?
400
These are non-weather-related affects to floods and droughts.
What is a rise in food prices and decrease in food availability?
500
This form of lightning is a hovering mass about the size of a pumpkin that disappears in a fizzle or a bang.
What is ball lightning?
500
This percentage of tornadoes reach EF4 or EF5 status.
What is 2%?
500
This occurs when hurricane-force winds drive a mound of ocean water toward coastal areas and it washes over land.
What is a storm surge?
500
These are a side affect of droughts caused by the presence of large, high-pressure systems for weeks or months and are extended periods of above-average temperatures.
What are heat waves?
500
The tornado that hit Parkersburg-New Hampton, Iowa in May 2008 was this classification.