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Terms in this set (34)
Tropical cyclones in the Atlantic basin are known as __________ if they have sustained surface winds of 74 mph or greater.
Tropical cyclones in the eastern and central North Pacific are known as __________ if they have sustained surface winds of 74 mph or greater.
Tropical cyclones in the Northwest Pacific are known as __________ if they have sustained surface winds of 74 mph or greater.
There has only been one __________ in the South Atlantic in recorded history.
Hurricanes are very intense __________ weather systems.
All low pressure systems (including hurricanes) rotate __________ in the Northern Hemisphere.
All low pressure systems (including hurricanes) rotate __________ in the Southern Hemisphere.
In the Northern Hemisphere, low pressure systems rotate counterclockwise due to the __________.
The Earth's rotational speed is highest at the
The Earth's rotational speed is slowest at the
__________ rising from large areas of warm water cause tropical cyclones to develop and strengthen.
When an area of the atmosphere is warmer than the surrounding air, it will rise, creating an area of __________.
Both lava lamps and hurricanes are powered by
When a heat source is under a fluid, the fluid heats, expands, rises, cools, contracts, falls, heats, etc. This is known as a (an)
When an area of heated air is rising, adjacent cooler, denser air rushes in to replace it. This movement of air is called
higher pressure to lower pressure
Air always moves from
The Coriolis effect is caused by the fact that the Earth's rotational speed is different depending on a location's
A __________ is a low pressure system (not associated with a front) that develops over tropical and sometimes sub-tropical waters and has organized deep convection with a closed wind circulation about a well-defined center. (NWS)
A __________ is a tropical cyclone that has maximum sustained surface winds (one-minute average) of 38 mph (33 knots) or less. (NWS - National Weather Service)
A __________ is a tropical cyclone that has maximum sustained surface winds ranging from 39-73 mph (34 to 63 knots). (NWS)
Hurricanes are categorized based on what sustained surface wind speed scale?
Major hurricanes are category __________ and up.
With sustained surface wind speeds of 157 MPH and above, the strongest hurricanes are category
When tropical cyclones are over land or colder water they
A tropical storm __________ is issued when tropical storm conditions, including winds of 39-73 mph, are EXPECTED in a specified coastal area within 36 hours or less. (NWS)
A hurricane __________ is issued when sustained winds of 74 mph or higher are EXPECTED somewhere within the specified area. It is issued 36 hours in advance of the onset of tropical storm force winds. (NWS)
The center of circulation of a tropical cyclone is known as a (an)
__________ - An organized band of cumulonimbus clouds immediately surrounding the center of the tropical cyclone. The strongest sustained winds are usually here.
__________ - An abnormal rise in sea level accompanying a tropical cyclone.
Though storms can occur outside this time period, the Atlantic hurricane season lasts from the beginning of __________ until the end of __________.
A map showing a series of computer models of a storm's potential track is known as a (an)
In general, the lower the air pressure is in the eye of a hurricane, the __________ the winds in the eye wall will be.
When there are more than 21 named storms in a hurricane season (the number of names), the __________ is used to name the subsequent storms.
male and female
Currently, the tropical cyclone names alternate between __________ names.
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