Weather Fronts + El Nino and La Nina
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36 Terms
El Niño and La Niña are periodic weather patterns that occur because of
Fluctuating ocean temperatures in one part of the world, namely the east-central equatorial Pacific Ocean
El Nino and La Nina cause
Extreme weather (think intense rains and severe droughts) in other parts of the world, such as the United States.
What are Trade Winds
Winds off the western coast of South America that usually blow from east to west
What direction do Trade Winds Blow
East to West
Together, El Niño and La Niña are part of what
A natural cycle that can significantly impact not only global weather, climate, and ocean conditions but also food production, human health, and water supply.
What happens during La Nina in the Northwest
Temperatures tend to be cooler than average
What happens to weather in the North during La Nina
The weather tends to be stormier than usual
What happens to weather in the South during La Nina
The weather tends to be less stormy in the South.
What happens during La Nina in the Southeast
Temperature tends to be warmer than average
What is Lan Nina caused by
Cool water building up along the central and eastern tropical Pacific Ocean
What is El Nino caused by
Warm water building up along the central and eastern tropical Pacific
During El Nino what increases
Moisture rising in the air
More Moisture rising up in the air cause what
More rainstorms
What happens in the Northwest during El Nino
Temperatures tend to be warmer than normal with decreased rainfall
What happens in the Southeast during El Nino
Cooler and wetter-than-average conditions
Is this El Nino or La Nina
El Nino
Is this El Nino or La Nina
La Nina
How is a Cold Front formed
When a cold air mass moves into an area where there is a warm air mass
How is a Warm Front formed
When a warm front forms when a warm air mass moves into an area where there is a cold air mass.
How is a Stationary Front Formed
When a warm air mass meets a cold air mass, and neither is moving
When a Cold Front Froms what happens to the warm air
It is pushed up, cooling as it rises
What does a Cold Front lead to
Short periods of heavy rain and possibly violent thunderstorms.
What happens after the warm air is pushed out of the area
The weather in that area tends to be cool and dry.
What happens to the warm air in a Warm Front
The incoming warm air is less dense than the cold air, so it moves over the cold air.
What does a Warm Front cause
Gentle rain showers
What happens once the cold air is pushed out of the during a warm front
The weather is usually warm and humid.
What does a Stationary Front Lead to
Longs periods of rain, often lasting for several days.
What is Climate
The average weather conditions in a region over a long period, typically 30 years or more.
What is weather
The condition of the atmosphere at a certain time and place
Climate is mainly described by
Precipitation and Temperature
Weather can change
Frequently
Climate changes
Over many years
What effects climate in a region
The Location, the distance from large bodies of waters, its elevation
How does location affect climate
It is colder the farther north and hot the further south
How does distance from large bodies of water affect climate
Keeps temperature more constant. Cooler in the summer and Warmer in the Winter
How does elevation affect climate
The higher up the colder