A weather watch would probably be issued for what?
A surface or upper level chart that depicts the present weather patterns is
A forecast chart that shows the future at some point in time is a
The forecasting of weather by computer is
Which of the following is presently a problem with modern day weather predictons?
What is true of geosynchronous satellites?
Why is it possible to see clouds on satellite photographs taken at night?
Bright white on an infrared cloud picture indicates
What would probably be used to infer cloud altitude on a satellite photograph?
A tall cumulonimbus cloud would appear ____ on a visible satellite and ____ on an infrared cloud picture.
Which forecasting method assumes that weather systems will move in the same direction and at the same speed as they have been moving?
A weather forecast that predicts that the future weather will be the same as the present weather is
A forecast for the immediate future that employs the trend method is called
A forecast method that compares past weather maps and weather patterns to those of the present is
A probability forecast that calls for a "40% chance of rain" means that
The greatest improvement in forecasting skill during the past decade has been
The forecasting technique that produces several versions of a forecast model, each beginning with slightly different weather information to reflect errors in the measurements, is called
Suppose that where you live, the middle of January is typically several degrees warmer than the rest of the month. If you forecast this "January thaw" for the middle of next January, you would have made a
By examining a surface map, the movement of a surface low pressure area can predicted based upon the
An accurate forecast
A forecaster will use a prognostic chart for guidance in preparing a forecast, but will also rely on personal experience and a knowledge of local features that can affect the weather.
A polar-orbiting satellite would provide a more detailed view of a severe thunderstorm that a geosynchoronous satellite.
Weather observations made by most countries of the world are shared and distributed globally by international agencies.
Satellites can observe the movement of the air in areas where there are no clouds by detecting IR radiation emitted by water vapor.
The intital stage of ordinary cel thunderstorm is
Ordianry cell thunderstorms only last about one hour and begin to dissipate when
Downdrafts spread throughout a thunderstorm during the ___ stage
An ordinary cell thunderstorm is most intense during the ___stage.
A group of thundesrtorms which develop in a line one next to the other, each in a different stage of development, are called
An enormous thunderstorm that last for several hours is a
The leading edge of a thunderstorm's cold downdraft is known as a
A small thunderstorm cloud with virga falling out of its base and blowing dust at the ground could warn of a severe hazard to aircraft because
A relatively narror downbust, less than 4 kilometers wide, is called a
A lind of thunderstorms that forms ahead of an advancing cold front is called a
On a surface weather map, this marks the boundary where a warm, dry air mass encounters a warm, moist air mass.
Themost likely time for an ordinary cell thunderstorm to form is
A discharge of electricity from or within a thunderstorm is called
In cloud-to-ground lightning, the stepped leacer travels ____and the return stroke travels ___.
The top of a thunderstorm is normally ___charged, and the middle and lower parts are ____charged.
What would be the proper sequence of events in a lightning flash?
You are generally safe inside an automobile during a lightning storm because
The rapid heating of air surrounding a lightning channel.
If you see a lightning stroke and then, 15 seconds later, hear the thunder, the lightning is about ___miles away.
Which of the following statements about tornadoes is correct?
The fujita scale pertains to
The rotating updraft inside a severe thunderstorm is called a
If a tornado is rotating in a counterclockwise direction and moving toward the northeast, the strongest winds will be on its ___side.
Different tornadoes spawned by the same thunderstorm are said to occur in
In a region where severe thunderstorms with tornadoes are forming, one would NOT expect to observe
A hook-shaped echo on a radar screen often indicates
___measures the speed at which precipitation is moving toward or away from an observer.
A doppler radar screen, a tornado might appear as a
A doppler radar determines precipitation ___by measuring changes in the ___ of the reflected radio wave.
The so-caled "Tornado Belt" of the United States is located
A week trough of low pressure found in the tropics and along which hurricanes occasionally form is called
Which of the following is not true concerning an easterly wave?
The skies in the center of a hurricane are often cloud free. This is because the air in the eye
An intense storm of tropical origin that forms over the Pacific Ocean adjacent to the west coast of Mexico would be called a
Pressure at the center of a hurricane is ___than the surroundings at the surface and ____than the surroundings aloft.
The vertical structure of the hurricane shows an upper-level ___of air, and a surface ___of air.
In the Northern Hemisphere, hurricanes and middle latitude cyclones are similar in that both
Which would you NOT expect to observe as the eye of a hurricane passes directly over your area?
In a hurricane, a zone of intense thunderstorms around the center is represented by the
At the periphery of a hurricane the air is ____, and several kilometers above the surface, in the eye, the air is ___.
Just before a storm becomes a fully developed hurricane, it is in the ___ stage,
Hurricanes do not form
The main difference between a hurricane and a tropical storm is that
The main source of energy for a hurricane is the
Which below is not an atmosperic condition conductive to the formation of hurricanes?
Which below forms only over water?
Hurricanes dissipate when
The first three stages of a developing hurricane are
A tropical storm becomes a hurricane when
As a northward-moving hurricane passes to the east of an area, surface winds should change from
Which statement below is not correct concerning hurricanes?
On the Saffir-Simpson hurricane scale, a hurricane with winds in excepss of 155 mi/hr and a central pressure of 910 would be classified as a category __hurricane.
A rise in ocean level of several meters or more is a
The strongest winds in a hurricane heading westward toward FL would most likely be found on the ___side.
Most of the destruction cause by a hurricane is due to
Along a coastline, most hurricane damage is caused by
Storms that form in the tropics are given names when
Suppose the eye of a hurricane passed directly over you, and you survived the experience. If winds were from the northeast as the eyewall first approached you, from what direction did the winds blow when the eyewall reached you the second time.